Sign In to Follow Application
View All Documents & Correspondence

An Engine And A Method For Cooling Thereof

Abstract: ABSTRACT AN ENGINE AND A METHOD FOR COOLING THEREOF The present disclosure provides an engine (100) and a method for cooling the engine (100) for a vehicle (500). The engine (100) comprising a cylinder block (104), a fluid gallery (302) and a fluid exit port (306). The fluid gallery (302) is 5 extending to reach to a central region (104b) of the cylinder block (104). The fluid gallery (302) provides a cooling effect to the engine (100). The fluid exit port (306) is configured to lubricate a timing camchain (106). The method for cooling the engine (100) comprising various steps. Starting from receiving (401) a fluid flow to cooling the engine (100) to delivering the fluid flow and to lubricating the timing 10 camchain (106) by a fluid exit port (306) through the fluid flow. The present subject matter ensures adequate lubrication of the parts of the engine (100) and an efficient cooling of the engine (100). To be published with Fig. 1

Get Free WhatsApp Updates!
Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
17 August 2023
Publication Number
28/2025
Publication Type
INA
Invention Field
MECHANICAL ENGINEERING
Status
Email
Parent Application

Applicants

TVS MOTOR COMPANY LIMITED
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006

Inventors

1. Nagendra Kumar Dharmapuri
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006
2. Pradeep Shanmugam
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006
3. Vethanayagam Jayajothi Johnson
TVS Motor Company Limited, “Chaitanya”, No.12 Khader Nawaz Khan Road, Nungambakkam, Chennai 600 006

Specification

Description:AN ENGINE AND A METHOD FOR COOLING THEREOF
TECHNICAL FIELD
[0001] The present subject matter generally relates to an engine, and more particularly, relates to a cooling method of the engine.
BACKGROUND 5
[0002] In conventional vehicles, heating of an engine is a major issue. The engine overheating has been a serious problem which can damage the engine. In a working example, if the engine overheats, the metal parts can crack which can lead to serious damage in the engine and overall working of the vehicle. Another problem which can arise due to engine overheating is loss of power as 10 an overheated engine will not be able to produce as much power which makes it difficult to drive. In the instances of extreme heating of the engine, it can lead to engine failure which will cause frequent servicing and repairs adding to overall cost to the customer.
[0003] Conventionally, inadequate lubrication is another issue in engine of 15 the vehicle. The lubrication fluid in the engine helps to lubricate the moving parts of the engine which prevents these parts from rubbing against each other and thus prevents wear and tear of these parts during working condition of the vehicle. Thus, if the lubrication has not been done inadequately, it can cause friction and results in damaging of the parts. Thus, if the lubricating fluid level 20 is low or it is not circulating properly, it can lead to damage of those parts which have not been adequately lubricated. Conventional solutions to the problem of inadequate lubrication is by providing an oil sump with an oil level which lubricates the timing camchain whenever the timing camchain rotates through the oil sump. However, the conventional method is not an effective way of 25 lubrication and thus leads to a condition of inadequate lubrication which in turn causes more friction which results in wear and tear of the parts of the engine and resulting in deteriorating the efficiency and life of the engine as well.
3
[0004] Therefore, engines are susceptible to overheating and inadequate lubrication which lead to serious damage and failure of the engine and the vehicle. Conventional solutions to avoid engine overheating is the use of a radiator fan. Using the radiator fan provides an external source of cooling which also adds to number of parts of the vehicle which in turn adds more weight and
5 make the vehicle bulky and heavy which is undesirable as heavier vehicles are difficult to manoeuvre. Other solutions in known art to avoid overheating of the engine is the use of a coolant. To prevent inadequate lubrication, more volume of coolant/fluid is used. However, conventional solutions to avoid engine overheating and inadequate lubrication are time consuming and requires more 10 number of parts such as radiator fan or an external cooling source. It also adds to a greater number of parts, which adds to overall weight of the vehicle and in turn increases the cost of the vehicle.
[0005] Thus, a method for cooling of engine which also provides adequate lubrication to the parts of the engine is desirable. Therefore, it is desired to have 15 an engine which can provide adequate lubrication and cooling without adding part count of the vehicle.
[0006] Thus, an engine which can overcome above mentioned disadvantages is desired and required.
20
SUMMARY
[0007] The foregoing summary is illustrative only and is not intended to be in any way limiting. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features will become apparent by reference to the drawings and the following detailed 25 description.
[0008] According to embodiments illustrated herein, the present disclosure provides an engine. The engine comprising a crankcase, a timing system, a cylinder head, and a cylinder block assembly. The cylinder block assembly further comprising a cylinder block, a fluid gallery and a fluid exit port. The 30
4
cylinder block further comprising a first region, a central region and an end region. The first region is below the cylinder head, the central region is below the first region of the cylinder block. The central region is in proximity to a central axis. The end region is below the central region. The fluid gallery is extending from the first region of the cylinder block to a predetermined depth 5 to reach to a central region of the cylinder block. The fluid gallery is configured to cool the engine. The fluid exit port is disposed at a pre defined inclination at an end region of the fluid gallery. The fluid exit port is configured to lubricate a timing camchain. [0009] In an embodiment, herein the fluid gallery is configured to have a 10 concentric circular profile. The fluid gallery comprises a receiving end and a delivering end. The receiving end is below the cylinder head. The receiving end is coaxial to the first region of the cylinder block. The delivering end is located in the central region of the cylinder block, herein the delivering end is placed opposite to the receiving end. 15
[00010] In an embodiment, herein the first region of the cylinder block is configured to have the receiving end of fluid gallery.
[00011] In an embodiment, herein the predetermined depth of the fluid gallery (302) being 10-30 mm.
[00012] In an embodiment, herein the fluid exit port (306) being disposed at 20 the pre defined inclination with respect to an axis (YY’), the axis (YY’) passing through one of a left side or one of a right side of the fluid gallery (302), the left side and the right side being present with respect to LR axis.
[00013] In an embodiment, herein the pre defined inclination being 30 to 130 degrees. 25
[00014] In an embodiment, herein the receiving end is configured to receive fluid from the cylinder head and the delivering end is configured to deliver the fluid to a crankcase of the engine.
5
[00015] In an embodiment, herein the timing system comprising a camshaft sprocket, a crankshaft sprocket and a timing camchain. The camshaft sprocket is close to the cylinder head. The crankshaft sprocket is close to the crankcase. The timing camchain is configured to circumference around the camshaft sprocket and the crankshaft sprocket. 5
[00016] In an embodiment, herein the timing camchain is normal to the fluid exit port.
[00017] In an embodiment, herein the fluid exit port is located at the one of the left side or one of the right side of the fluid gallery.
[00018] In an embodiment, herein an area of the fluid exit port is within a 10 pre defined range, the predefined range being 30 to 45mm square.
[00019] According to embodiments illustrated herein, the present disclosure provides a method for cooling of an engine. The method comprising various steps. First step is to receive a fluid flow by a receiving end of the fluid gallery. The fluid flow is configured from a crankcase to the fluid gallery. Second step 15 is to cool the engine by the fluid flow inside the fluid gallery. Third step is to deliver the fluid flow which is inside the fluid gallery by a delivering end. Last step is to lubricate the timing camchain by a fluid exit port through the fluid flow.
[00020] According to embodiments illustrated herein, the present disclosure 20 provides a vehicle. The vehicle comprising an engine. The engine further comprising a crankcase, a timing system, a cylinder head, and a cylinder block assembly. The cylinder block assembly further comprising a cylinder block, a fluid gallery and a fluid exit port. The cylinder block further comprising a first region, a central region and an end region. The first region is below the cylinder 25 head, the central region is below the first region of the cylinder block. The central region is in proximity to a central axis. The end region is below the central region. The fluid gallery is extending from the first region of the cylinder block to a predetermined depth to reach to a central region of the cylinder block.
6
The fluid gallery is configured to cool the engine. The fluid exit port is disposed at a pre defined inclination at an end region of the fluid gallery. The fluid exit port is configured to lubricate a timing camchain.
BRIEF DESCRIPTION OF DRAWINGS 5
[00021] The present invention will become more fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention. 10
[00022] The detailed description is described with reference to the accompanying figures, which is related to a movable load-carrying device which can be a multi wheeled vehicle being one embodiment of the present subject matter. However, the present subject matter is not limited to the depicted embodiment(s). In the figures, the same or similar numbers are used throughout 15 to reference features and components.
[00023] Fig. 1 illustrates an exploded view of an engine, in accordance with an embodiment of the present subject matter.
[00024] Fig. 2 illustrates a perspective view of the engine , in accordance with an embodiment of the present subject matter. 20
[00025] Fig. 3a illustrates a top view of a cylinder block of the engine, in accordance with an embodiment of the present subject matter.
[00026] Fig. 3b illustrates a sectional view of the cylinder block of the engine, in accordance with an embodiment of the present subject matter.
[00027] Fig. 4 illustrates a flow chart for method for cooling of the engine, 25 in accordance with an embodiment of the present subject matter.
[00028] Fig. 5 illustrates a side view of a vehicle, in accordance with an embodiment of the present subject matter.
7
DETAILED DESCRIPTION
[00029] The present disclosure may be best understood with reference to the detailed figures and description set forth herein. Various embodiments are discussed below with reference to the figures. However, those skilled in the art will readily appreciate that the detailed descriptions given herein with respect 5 to the figures are simply for explanatory purposes as the methods and systems may extend beyond the described embodiments. For example, the teachings presented and the needs of a particular application may yield multiple alternative and suitable approaches to implement the functionality of any detail described herein. Therefore, any approach may extend beyond the particular 10 implementation choices in the following embodiments described and shown.
[00030] References to “one embodiment,” and “an embodiment,” and so on indicate that the embodiment(s) or example(s) may include a particular feature, structure, characteristic, property, element, or limitation but that not every embodiment or example necessarily includes that particular feature, structure, 15 characteristic, property, element, or limitation. Further, repeated use of the phrase “in an embodiment” does not necessarily refer to the same embodiment.
[00031] The present invention now will be described more fully hereinafter with different embodiments. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments 20 set forth herein; rather those embodiments are provided so that this disclosure will be thorough and complete, and fully convey the scope of the invention to those skilled in the art.
[00032] The present subject matter is further described with reference to accompanying figures. It should be noted that the description and figures merely 25 illustrate principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof. 30
8
[00033] Various features and embodiments of the present subject matter here will be discernible from the following further description thereof, set out hereunder. It is contemplated that the concepts of the present subject matter may be applied to any kind of vehicle within the spirit and scope of this subject matter. The detailed explanation of the constitution of parts other than the 5 present subject matter which constitutes an essential part has been omitted at suitable places.
[00034] It is an object of the present invention to provide an engine having a cylinder block assembly comprising a fluid gallery and a fluid exit port which can provide adequate lubrication of a timing camchain and effective cooling of 10 the engine.
[00035] Another object of the present application is to have a simple and compact engine which can provide cooling and lubrication without adding more part count of the vehicle.
[00036] It is further an object of the present application to provide an engine 15 which is cost effective and not add much to weight of the vehicle. It is an object of the present application to provide an engine which can address the problem of overheating and inadequate lubrication.
[00037] It is further an object of the present invention to have an engine which can absorb the heat produced in the engine during its working condition 20 by providing more surface area to volume in the fluid gallery.
[00038] It is an object of the present application to reduce the friction between moving parts of the engine which will improve fuel efficiency and extend the life of the engine. It is also an object of the present application to provide adequate lubrication by providing a fluid exit port which can contribute 25 to provide lubrication to the timing camchain of the engine.
[00039] The present subject matter along with all the accompanying embodiments and their other advantages would be described in greater detail in conjunction with the figures in the following paragraphs.
9
[00040] The present subject matter is further described with reference to accompanying figures. It should be noted that the description and figures merely illustrate principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting 5 principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[00041] Fig. 1 illustrates an exploded view of an engine, in accordance with an embodiment of the present subject matter. Fig. 1 illustrates an exploded view of the engine (100). The exploded view closely illustrates the parts of the engine 10 (100). (102) denotes a cylinder head, (104) denotes a cylinder block, (115) denotes a crankshaft assembly and (101) denotes a crankcase. The cylinder head (102) is placed on a top side of the engine (100). The cylinder block (104) is kept below the cylinder head (102). The cylinder block (104) further illustrates three regions (104a, 104b, and 104c) of the cylinder block (104). The three 15 regions (104a, 104b and 104c) illustrate a first region (104a), a central region (104b) and an end region (104c) of the cylinder block (104). The first region (104a) is placed below the cylinder head (102). The central region (104b) is placed below the first region (104a). The central region (104b) is in proximity to a central axis (XX’). The end region (104c) is below the central region (104b) 20 of the cylinder block (104). Fig. 1 also illustrates a guide camchain (120). Fig. 1 further illustrates a timing system. The timing system comprises a camshaft sprocket (108), a crankshaft sprocket (110) and a timing camchain (106). As illustrated, the camshaft sprocket (108) is in proximity to the cylinder head (102) while the crankshaft sprocket (110) is close to the crankcase (101). Fig. 1 25 also illustrates a fluid gallery (302).
[00042] Fig. 2 illustrates a perspective view of the engine, in accordance with an embodiment of the present subject matter. With reference to Fig. 2, (210) denotes an automatic chain tensioner. Fig. 2 further illustrates a longitudinal axis (ZZ’) which passes through the middle of the engine. It also illustrates a 30
10
horizontal axis (XX’) which passes through the central region (104b) of the cylinder block (104). Further it illustrates an axis (LR) to denote left and right direction. Fig. 2 illustrates the timing system in an assembled way. The timing system comprises a camshaft sprocket (108), a crankshaft sprocket (110) and a timing camchain (106). As illustrated, the camshaft sprocket (108) is in 5 proximity to the cylinder head (102) while the crankshaft sprocket (110) is in proximity to the crankcase (101). It clearly illustrates the timing camchain (106) is circumference around the camshaft sprocket (108) and the crankshaft sprocket (110). [00043] Fig. 3a illustrates a top view of a cylinder block of the engine, in 10 accordance with an embodiment of the present subject matter. It illustrates a fluid gallery (302). As illustrated, the fluid gallery (302) extends from the first region (104a) of the cylinder block (104). The fluid gallery (302) has a concentric circular profile. The fluid gallery (302) is used to circulate the fluid throughout the engine (300). Herein, the fluid gallery (302) is also contributing 15 to heat absorption and resulting in cooling of the engine (100). The fluid gallery (302) extends to a predefined depth to reach the central region (104b) of the cylinder block (104). It also illustrates an axis (BB) which passes through offset from centre towards the left side of the cylinder block (104).
[00044] Fig. 3b illustrates a sectional view of the cylinder block of the 20 engine, in accordance with an embodiment of the present subject matter. It further illustrates a fluid exit port (306). The fluid exit port (306) is disposed at a pre defined inclination at an end region (104c) of the fluid gallery (302). It also illustrates an axis (YY’) which passes through the left side of the fluid gallery (302). As illustrated the fluid exit port (306) is placed at the predefined 25 inclination with respect to YY’ axis. Further Fig. 3b illustrates a receiving end (302r) and a delivering end (302d). The receiving end (302r) is coaxial to the first region (104a) of the cylinder block (104). The delivering end (302d) is located in the central region (104b) of the cylinder block (104). The delivering end (302d) is placed opposite to the receiving end (302r). As illustrated, the first 30
11
region (104a) of the cylinder block (104) is configured to have the receiving end (302r) of the fluid gallery (302). The fluid gallery (302) has been extended from the first region (104a) of the cylinder block (104) to a predefined depth to reach to the central region (104b) of the cylinder block (104). The predetermined depth of the fluid gallery (302) is in the range of 10-30 mm. 5 [00045] Fig. 4 illustrates a flow chart for method for cooling of the engine, in accordance with an embodiment of the present subject matter. The method comprising various steps. First step (401) is to receive a fluid flow by a receiving end (302r) of the fluid gallery (302). The fluid is stored in fluid sump which is disposed in the crankcase (101). The fluid flow is configured from a 10 crankcase (101) to the fluid gallery (302). Second step (402) is to cool the engine (100) by the fluid flow inside the fluid gallery (302). Third step (403) is to deliver the fluid flow which is inside the fluid gallery (302) by a delivering end (302d). Last step (404) is to lubricate the timing camchain (106) by a fluid exit port (306) through the fluid flow. The method (400) helps to achieve 15 adequate lubrication and cooling of the engine (100).
[00046] Fig. 5 illustrates a side view of a vehicle, in accordance with an embodiment of the present subject matter. With reference to Fig. 5, vehicle (500) comprises a handlebar (502), a fuel tank (504), a seat (506), and a headtube (508). The front rotating member (510) and rear rotating member 20 (512) have been illustrated in Fig. 5. It further illustrates the engine (100) of the vehicle (500).
[00047] In an embodiment, the fluid gallery (302) is configured to have a concentric circular profile, herein the fluid gallery (302) comprises a receiving end (302r) and a delivering end (302d). The receiving end (302r) is below the 25 cylinder head (102). The receiving end (302r) is coaxial to the first region (104a) of the cylinder block (104). The delivering end (302d) is located in the central region (104b) of the cylinder block (104), herein the delivering end (302d) is placed opposite to the receiving end (302r). The concentric circular profile of the fluid gallery (302) is coaxial to the first region (104a) of the cylinder block 30
12
(104). Thereby, the first region (104a) of the cylinder block (104) is kept immediately below the cylinder head (102) to receive the fluid from the cylinder head (102) to the fluid gallery (302). The receiving end (302r) receives the fluid flow from the cylinder head (102) and passes the fluid flow to the fluid gallery (302). The fluid gallery (302) accommodates the fluid flow which helps in 5 absorbing the heat from the engine (100), thus acting as coolant. The fluid flows to the delivering end (302d) which is opposite to the receiving end (302r). The delivering end (302d) delivers the fluid flow to fluid exit port (306). The fluid exit port (306) ensures the lubrication of the timing camchain (106) which is in proximity to the fluid exit port (306) in order to provide adequate lubrication to 10 the parts of the engine (100) which prevents wear and tear of these parts and improve the efficiency and life of the engine (100). The delivering end (302d) also delivers the fluid flow to the crankcase (101) of the engine (100). [00048] In an embodiment, herein the first region (104a) of the cylinder block (104) is configured to have the receiving end (302r) of fluid gallery (302). 15 The receiving end (302r) receives the fluid flow from the cylinder head (102) and passes the fluid flow to the fluid gallery (302). The fluid gallery (302) accommodates the fluid flow which helps in absorbing the heat from the engine (100), thus acting as coolant. This ensures the adequate cooling of the engine (100) and prevents overheating and damaging of the metal parts of the engine 20 (100) which further increases the life and efficiency of the engine (100).
[00049] In an embodiment, herein the predetermined depth of the fluid gallery (302) being 10-30 mm. The depth of the fluid gallery (302) has been increased to accommodate more volume of the fluid flow which ensures proper heat absorption from the engine (100) and results in adequate cooling of the 25 engine (100). Adequate cooling and heat absorption of the engine (100) leads to improved efficiency and life of the engine (100). In an exemplary embodiment the predetermined depth of the fluid gallery is 24.45 mm.
[00050] In an embodiment, herein the fluid exit port (306) is disposed at the pre defined inclination with respect to an axis (YY’). The axis (YY’) passing 30
13
through one of a left side or one of a right side of the fluid gallery (302). The left side and the right side is present with respect to LR axis. The fluid exit port (306) has been inclined at an angle with respect to (YY’) axis as angular position allows the fluid exit port (306) to lubricate the timing camchain (106) of the engine and ensures adequate lubrication. Adequate lubrication of the engine 5 (100) is important to achieve an improved efficiency and increases the life of the engine as well. [00051] In an embodiment, herein the pre defined inclination being 30 to 130 degrees. In an exemplary embodiment, the pre defined inclination being 90 degrees. The fluid exit port (306) is normal to the (YY’) axis in one of the 10 embodiments.
[00052] In an embodiment, herein the receiving end (302r) is configured to receive fluid from the cylinder head (102) and the delivering end (302d) is configured to deliver the fluid to a crankcase of the engine (100). The receiving end (302r) receives the fluid flow from the cylinder head (102) and passes the 15 fluid flow to the fluid gallery (302). The fluid gallery (302) accommodates the fluid flow which helps in absorbing the heat from the engine (100), thus acting as coolant. The delivering end (302d) also delivers the fluid flow to the crankcase (101) of the engine (100).
[00053] In an embodiment, herein the timing system comprising a camshaft 20 sprocket (108), a crankshaft sprocket (110) and a timing camchain (106). The camshaft sprocket (108) is close to the cylinder head (102). The crankshaft sprocket (110) is close to the crankcase (101). The timing camchain (106) is configured to circumference around the camshaft sprocket (108) and the crankshaft sprocket (110). The timing camchain (106) synchronises the rotation 25 of the camshaft and crankshaft (101). The timing camchain (106) connects the camshaft sprocket (108) and the crankshaft sprocket (110). The timing camchain (106) ensures that the camshaft and the crankshaft (101) are rotation at the same speed which is necessary for the valves to open and close at the correct times during combustion process. Thus, the adequate lubrication of the 30
14
timing camchain (106) ensures the proper rotation of it and thereby maintain the timings of the opening and closing of the valves which ensures improved working and efficiency of the engine (100). [00054] In an embodiment, herein the timing camchain (106) is normal to the fluid exit port (306). The fluid exit port (306) has been inclined at an angle 5 of 90 degrees with respect to (YY’) axis as angular position allows the fluid exit port (306) to lubricate the timing camchain (106) of the engine (100) and ensures adequate lubrication. Adequate lubrication of the engine (100) is important to achieve an improved efficiency and increases the life of the engine (10) as well. 10
[00055] In an embodiment, herein the fluid exit port (306) is located at the one of the left side or one of the right sides of the fluid gallery (302). The fluid exit port (306) can be located on the left side of the fluid gallery (302) or on the right side of the fluid gallery (302). The one of the left sides or one of the right 15 sides ensures the adequate lubrication of the timing camchain (106) from the fluid exit port (306). Adequate lubrication of the engine (100) is important to achieve an improved efficiency and increases the life of the engine (100) as well.
[00056] In an embodiment, herein an area of the fluid exit port (306) being 20 within a pre defined range, the predefined range being 30 to 45mm square. In an exemplary embodiment, the area of the fluid exit port (306) being 38.7mm square. The depth of the fluid exit port has been increased from 5mm to 19 mm which thereby increases the area of the fluid exit port (306) to provide efficient lubrication to the timing camchain (106). Adequate lubrication of the engine 25 (100) is important to achieve an improved efficiency and increases the life of the engine (100) as well.
[00057] The present subject matter may be implemented in any multi wheeled vehicle. However, for the purpose of explanation and by no limitation,
15
the present invention, and corresponding additional advantages and features are described through the following embodiments depicting a multi wheeled vehicle.
The engine may correspond to an internal combustion engine for the vehicle. [00058]
Thus, the present subject matter offers an advantage of efficient 5 cooling and adequate lubrication of the parts of the engine. Another advantage of the present subject matter is to have an improved engine with better efficiency without adding more number of parts to the engine while maintaining it simple, compact and light weight. Another advantage is that the present subject matter provides a cost effective way of cooling the engine without 10 adding external source of cooling such as radiator fan. The present subject matter further provides the advantage of more surface area and volume of the fluid gallery to provide heat absorption from the engine with the help of fluid flow. Another advantage is to have an adequate lubrication by reducing the friction between moving parts of the engine which will improve fuel efficiency 15 and extend the life of the engine. It is also an advantage of the present application to provide adequate lubrication by providing a fluid exit port which can contribute to provide lubrication to the timing camchain of the engine.
[00059] While certain features of the claimed subject matter have been illustrated and described herein, many modifications, substitutions, changes, 20 and equivalents will now occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes that fall within the true spirit of the claimed subject matter.
25
30
16
List of Reference Numerals
100 - Engine
101 - Crankcase 5
102 – Cylinder head
104 – Cylinder block
104a – first region
104b – central region
104c – end region 10
106 – timing camchain
108 – camshaft sprocket
110 – crankshaft sprocket
115 – crankshaft assembly
120 – guide camchain 15
210 – automatic chain tensioner
302 – fluid gallery
302r – receiving end
302d – delivering end
306 – fluid exit port 20
400 – method for cooling of the engine
401 – step 1
402 – step 2
403 – step 3
404 – step 4 25
500 – vehicle
502 - handlebar
504 – fuel tank
506 - seat
508 - headtube 30
510 – front rotating member
512 – rear rotating member , Claims:We Claim:
1. An engine (100), the engine (100) comprising:
a crankcase (101);
a timing system; 5
a cylinder head (102);
a cylinder block assembly;
wherein, the cylinder block assembly comprising:
a cylinder block (104), the cylinder block (104) comprising: 10
a first region (104a), the first region (131) being below the cylinder head (102);
a central region (104b), the central region (104b) being below the first region (104a) of the cylinder block (104), the central region (104b) being 15 in proximity to a central axis (XX’); and
an end region (104c), the end region (104c) being below the central region (104c);
a fluid gallery (302), the fluid gallery (302) extending 20 from the first region (104a) of the cylinder block (104) to a predetermined depth to reach to a central region (104b) of the cylinder block (104), the fluid gallery (302) being configured to cool the engine (100); and
25
a fluid exit port (306), the fluid exit port (306) being disposed at a pre defined inclination at an end region (104c) of the fluid gallery (302); the fluid exit port (306) being configured to lubricate a timing camchain (106).
30
18
2. The engine (100) as claimed in claim 1, wherein the fluid gallery (302) being configured to have a concentric circular profile, wherein the fluid gallery (302) comprises:
a receiving end (302r), the receiving end (302r) being below the cylinder head (102), the receiving end (302r) being coaxial to the 5 first region (104a) of the cylinder block (104); and
a delivering end (302d), the delivering end (302d) being located in the central region (104b) of the cylinder block (104), wherein the delivering end (302d) being placed opposite to the receiving end 10 (302r).
3. The engine (100) as claimed in claim 1, wherein the first region (104a) of the cylinder block (104) being configured to have the receiving end (302r) of fluid gallery (302). 15
4. The engine (100) as claimed in claim 1, wherein the predetermined depth of the fluid gallery (302) being 10-30 mm.
5. The engine (100) as claimed in claim 1, wherein the fluid exit port (306) being disposed at the pre defined inclination with respect to an axis (YY’), the axis (YY’) passing through one of a left side or one of a right side of the 20 fluid gallery (302), the left side and the right side being present with respect to LR axis.
6. The engine (100) as claimed in claim 1, wherein the pre defined inclination being 30 to 130 degrees.
7. The engine (100) as claimed in claim 1, wherein the receiving end (302r) 25 being configured to receive fluid from the cylinder head (102) and the delivering end (302d) being configured to deliver the fluid to a crankcase of the engine (100).
8. The engine (100) as claimed in claim 1, wherein the timing system comprising: 30
19
a camshaft sprocket (108), the camshaft sprocket (108) being close to the cylinder head (102);
a crankshaft sprocket (110), the crankshaft sprocket (110) being close to the crankcase (101); and
a timing camchain (106), the timing camchain (106) being 5 configured to circumference around the camshaft sprocket (108) and the crankshaft sprocket (110).
9. The engine (100) as claimed in claim 1, wherein the timing camchain (106) being normal to the fluid exit port (306). 10
10. The engine (100) as claimed in claim 1, wherein the fluid exit port (306) being located at the one of the left side or one of the right side of the fluid gallery (302).
11. The engine (100) as claimed in claim 1, wherein an area of the fluid exit port (306) being within a pre defined range, the predefined range being 30 15 to 45mm square.
12. A method (400) for cooling of an engine (100), the method (400) comprising steps of:
receiving (401), a fluid flow, by a receiving end (302r) of the fluid 20 gallery (302), the fluid flow being configured from a crankcase (101) to the fluid gallery (302);
cooling (402), the engine (100) by the fluid flow inside the fluid gallery (302);
delivering (403), the fluid flow being configured inside the fluid 25 gallery (302), by a delivering end (302d); and
lubricating (404), the timing camchain (106), by a fluid exit port (306) through the fluid flow.
30
20
13.A vehicle (500), the vehicle (500) comprising:
an engine (300), the engine (300) comprising:
a crankcase (101);
a timing system;
a cylinder head (102); 5
a cylinder block assembly;
wherein, the cylinder block assembly comprising:
a cylinder block (104), the cylinder block (104)comprising:
a first region (104a), the first region 10 (131)being below the cylinder head (102);
a central region (104b), the centralregion (104b) being below the first region (104a) of the cylinder block (104), the central region (104b) being in proximity to a central 15 axis (XX’); and
an end region (104c), the end region (104c) being below the central region (104c);
a fluid gallery (302), the fluid gallery (302) extending 20 from the first region (104a) of the cylinder block (104) to a predetermined depth to reach to a central region (104b) of the cylinder block (104), the fluid gallery (302) being configured to cool the engine (100); and
25
a fluid exit port (306), the fluid exit port (306) being disposed at a pre defined inclination at an end region (104c) of the fluid gallery (302); the fluid exit port (306) being configured to lubricate a timing camchain (106).
30 Dated 11th day of August 2023

Documents

Application Documents

# Name Date
1 202341055125-STATEMENT OF UNDERTAKING (FORM 3) [17-08-2023(online)].pdf 2023-08-17
2 202341055125-REQUEST FOR EXAMINATION (FORM-18) [17-08-2023(online)].pdf 2023-08-17
3 202341055125-PROOF OF RIGHT [17-08-2023(online)].pdf 2023-08-17
4 202341055125-FORM 18 [17-08-2023(online)].pdf 2023-08-17
5 202341055125-FORM 1 [17-08-2023(online)].pdf 2023-08-17
6 202341055125-DRAWINGS [17-08-2023(online)].pdf 2023-08-17
7 202341055125-COMPLETE SPECIFICATION [17-08-2023(online)].pdf 2023-08-17
8 202341055125-REQUEST FOR CERTIFIED COPY [17-07-2024(online)].pdf 2024-07-17
9 202341055125-MARKED COPY [23-10-2024(online)].pdf 2024-10-23
10 202341055125-CORRECTED PAGES [23-10-2024(online)].pdf 2024-10-23
11 202341055125-Request Letter-Correspondence [26-11-2024(online)].pdf 2024-11-26
12 202341055125-Covering Letter [26-11-2024(online)].pdf 2024-11-26