Description:TECHNICAL FIELD
[001]
The present subject matter relates to a vehicle, more particularly, a configuration of intake nozzles for increasing combustion efficiency of an internal combustion engine of the vehicle.
BACKGROUND 5
[002]
In a conventional internal combustion engine, a cylinder head assembly includes a cylinder head and a cylinder block. The cylinder head includes an intake port for incoming air for combustion and an exhaust port for discharge of harmful pollutants released from burning of air and fuel mixture in the engine. The combustion of air and fuel mixture occurs in a combustion chamber which is 10 disposed in the cylinder block of the engine.
[003]
The air incoming from the intake port reaches to the combustion chamber through a swirl motion and a tumble motion. In swirl motion, the air flow path is parallel to a horizontal axis of the intake port. However, in tumble motion, the air flow path is perpendicular to the horizontal axis of the intake port. The increased 15 rate of tumble motion causes greater circulation of air and thereby increases the overall combustion efficiency of the engine.
[004]
In conventional vehicles, a high-capacity internal combustion engine is provided with a secondary nozzle along with the intake port for greater intake of air. This secondary nozzle provides more air intake and additional air intake disrupts the 20 conventional flow path of swirl motion or tumble motion of air. This disruption in the flow path increases the tumble motion of air and thereby in turn provides a homogeneous mixture of air and fuel, i.e. the concentration of air increases and hence the quantity of rich mixture of air and fuel is attained.
[005]
In certain known arts of high-capacity internal combustion engines, the 25 secondary nozzle is provided inclined with respect to the intake port and the inclination is set at a predetermined inclination, for example, around 15-30 degrees. The secondary nozzle is provided at two diametrically opposite ends of the intake port and the two secondary nozzles are disposed parallel to each other.
[006]
However, in the above configuration, the secondary nozzles introduces 30 extra air into the intake port randomly without any streamlined flow path and thereby
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disrupts the tumble motion of the intake air and does not provide a characterized or
streamlined flow pattern. This configuration, however, provides a homogenous mixture after some delayed time and thereby the response time of the engine to increase the speed, after a throttle input has been given, occurs after some delayed time. 5
[007]
Additionally, the non-uniform and haywire pattern of combustion occurring in the internal combustion engine reduces the overall combustion efficiency of the internal combustion engine and thereby reduces the overall performance efficiency of the internal combustion engine.
[008]
Hence, it is preferred to have an improved configuration and packaging of 10 the secondary nozzles for better streamlined flow of intake air is required.
SUMMARY
[009]
The present subject matter provides packaging of one or more secondary nozzles at a predetermined angle with respect to a central bore axis for increasing 15 streamlined flow of air and for increasing combustion efficiency of an internal combustion engine.
[010]
As per an aspect of the present invention, an internal combustion engine comprising a cylinder head and a cylinder block. The cylinder block comprising one or more intake ports and one or more exhaust ports. The one or more intake ports is 20 provided with a plurality of intake nozzles. The at least one of plurality of intake nozzles is disposed inclinedly at a predetermined inclination with respect to a central bore axis of the one or more intake ports for increasing combustion efficiency of the internal combustion engine.
[011]
As per an embodiment, the plurality of intake nozzles comprising a first 25 intake nozzle and a second intake nozzle. The first intake nozzle is disposed on a left side of the central bore axis and the second intake nozzle is disposed on a right side of the central bore axis.
[012]
As per another embodiment, the predetermined inclination is in a range of 5-10 degrees from the central bore axis. 30
4
[013]
As per another embodiment, the at least one of the plurality of intake nozzles is disposed inclinedly at an inclination from the one or more intake ports and the inclination is in a range of 25-30 degrees with respect to a longitudinal axis.
[014]
As per another embodiment, the plurality of intake nozzles is disposed on an outer periphery of the one or more intake ports. 5
[015]
As per another embodiment, the at least one of the plurality of nozzles is disposed at a preset angle from a lateral axis of the cylinder block and the preset angle being in a range of 30-45 degrees.
[016]
As per another embodiment, the plurality of nozzles is disposed in a plurality of slots and the plurality of slots is disposed on a portion of the one or more 10 intake ports.
[017]
As per another embodiment, the plurality of slots is disposed on opposite sides of the central bore axis.
[018]
As per an embodiment, the plurality of nozzles is disposed angularly opposite to each other. 15
[019]
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
BRIEF DESCRIPT ION OF THE DRAWINGS 20
[020]
The present invention is described with reference to figures. This invention is implementable in two-wheeled, three wheeled and four wheeled vehicles. The same numbers are used throughout the drawings to reference like features and components. Further, the inventive features of the invention are outlined in the appended claims. 25
[021]
Figure 1 illustrates a front view of a cylinder block of an internal combustion engine, in accordance with an embodiment of the present subject matter.
[022]
Figure 2 illustrates a top view of the cylinder block of the internal combustion engine, in accordance with an embodiment of the present subject matter.
[023]
Figure 3 illustrates a left side view of the cylinder block of the internal 30 combustion engine, in accordance with an embodiment of the present subject matter.
5
[024]
Figure 4 illustrates a cross section view of a plurality of intake nozzles of the cylinder block of the internal combustion engine, in accordance with an embodiment of the present subject matter.
[025]
Figure 5 illustrates graphical representation of comparative study of turbulent flow of air inside one or more intake ports of the internal combustion 5 engine, in accordance with an embodiment of the present subject matter.
[026]
Figure 6 illustrates a side view representing a streamlined turbulent flow of intake air in a combustion chamber of the internal combustion engine, in accordance with an embodiment of the present subject matter.
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DETAILED DESCRIPTION OF THE DRAWINGS
[027]
Exemplary embodiments are described with reference to the accompanying drawings. Wherever convenient, the same reference numbers are used throughout the drawings to refer to the same or like parts. While examples and 15 features of disclosed principles are described herein, modifications, adaptations, and other implementations are possible without departing from the scope of the disclosed embodiments. It is intended that the following detailed description be considered as exemplary only, with the true scope being indicated by the following claims.
[028]
The present subject matter is further described with reference to 20 accompanying figures. It should be noted that the description and figures merely illustrate the 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 25 examples thereof, are intended to encompass equivalents thereof.
[029]
The foregoing disclosure is not intended to limit the present disclosure to the precise forms or particular fields of use disclosed. As such, it is contemplated that various alternate embodiments and/or modifications to the present disclosure, whether explicitly described or implied herein, are possible in light of the disclosure. 30 Having thus described embodiments of the present disclosure, a person of ordinary
6
skill in the art will recognize that changes may be made in form and detail without
departing from the scope of the present disclosure. Thus, the present disclosure is limited only by the claims.
[030]
Additionally, all numerical terms, such as, but not limited to, “first”, “second”, “third”, “primary”, “secondary”, “main” or any other ordinary and/or 5 numerical terms, should also be taken only as identifiers, to assist the reader's understanding of the various elements, embodiments, variations and/or modifications of the present disclosure, and may not create any limitations, particularly as to the order, or preference, of any element, embodiment, variation and/or modification relative to, or over, another element, embodiment, variation 10 and/or modification.
[031]
Hence it is an object of the present invention to provide a streamlined and uniform flow of air through one or more secondary nozzles of the internal combustion engine for increasing combustion efficiency of the internal combustion engine and to overcome other related problems known in the art as explained in the 15 background problem.
[032]
It is also an object of the present invention to improve engine operating conditions and for increasing overall engine efficiency.
[033]
It is also an object of the present invention to provide homogeneous mixing of fuel and air inside the combustion chamber of the internal combustion engine for 20 increasing engine efficiency.
[034]
It is also an object of the present invention to improve response time of the internal combustion engine while acceleration and decceleration for enhanced engine performance.
[035]
The embodiments of the present invention will now be described in detail 25 with reference to the accompanying drawings.
[036]
Figure 1 illustrates a front view of a cylinder block (102) of an internal combustion engine (100), in accordance with an embodiment of the present subject matter. An internal combustion engine (100) comprising a cylinder head (not shown) and a cylinder block (102). In one embodiment, the internal combustion engine (100) 30 being one of a single valve configuration and a multi valve configuration. The
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cylinder block (102) comprising one or more intake ports (104). The one or more
intake ports (104) are configured for inlet of atmospheric air inside a combustion chamber of the internal combustion engine (100) for enabling combustion of air and fuel in order to run the internal combustion engine (100). In one embodiment, the one or more intake ports (206) is provided with an extended flange (106). The 5 extended flange (206) is integrated with the one or more intake ports in one embodiment. In another embodiment, the extended flange (106) comprises a plurality of intake nozzles (108a, 108b). The plurality of intake nozzles (108a, 108b) being configured for intake of additional atmospheric air for generating a turbulent flow pattern in the combustion chamber of the internal combustion engine (100). In 10 one embodiment, the plurality of intake nozzles (108a, 108b) being configured as one or more secondary nozzles for intake of atmospheric air for increasing a combustion efficiency of a vehicle. In one embodiment, the combustion efficiency is a measure of heat content generated when a fuel is transformed into a usable heat during combustion of an air fuel mixture. 15
[037]
Figure 2 illustrates a top view of the cylinder block (102) of the internal combustion engine (100), in accordance with an embodiment of the present subject matter. The cylinder block (102) further comprises one or more exhaust ports (110) in one embodiment. The one or more exhaust ports (110) is configured for expelling poisonous and non-combustible gases from the combustion chamber after the 20 combustion of air fuel mixture in the combustion chamber of the internal combustion engine (100). In one embodiment, the one or more intake ports (104) comprising a first intake path (104a) and a second intake path (104b). In one embodiment, the first intake path (104a) and the second intake path (104b) being configured for supplying atmospheric air inside the combustion chamber. In another embodiment, the 25 plurality of intake nozzles (108a, 108b) is disposed and affixed in a plurality of slots (112a, 112b). In one embodiment, the plurality of slots (112a, 112b) is disposed in the extended flange (106). In one embodiment, the plurality of slots (112a, 112b) being integral to the extended flange (106). In one embodiment, the plurality of intake nozzles (108a, 108b) being integrally affixed in the plurality of slots (112a, 30 112b).
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[038]
Figure 3 illustrates a left side view of the cylinder block (102) of the internal combustion engine (100), in accordance with an embodiment of the present subject matter. Figure 4 illustrates a cross section view of a plurality of intake nozzles (108a, 108b) of the cylinder block (102) of the internal combustion engine (100), in accordance with an embodiment of the present subject matter. For brevity, 5 figures 3 and 4 shall be discussed together. In one embodiment, at least one of the plurality of nozzles (108a, 108b) is disposed at a preset angle (Y) from a lateral axis (B-B’) of the cylinder block (102). In an exemplary embodiment, the preset angle (Y) being in a range of 30-45 degrees. In one embodiment, the first intake nozzle (108a) is disposed on a left side of the central bore axis (AA’), and the second intake 10 nozzle (108b) is disposed on a right side of the central bore axis (AA’). In another embodiment, the at least one of the plurality of intake nozzles (108a, 108b) is disposed inclinedly at a predetermined inclination (x) with respect to the central bore axis (AA’) of the one or more intake ports (104) for increasing combustion efficiency of the internal combustion engine (100). In an exemplary embodiment, the 15 predetermined inclination (x) is in a range of 5-10 degrees from the central bore axis (AA’). In another exemplary embodiment, the inclination of the plurality of intake nozzles (108a, 108b) with respect to the central bore axis (AA’) increases a streamlined turbulent flow of the intake air inside the combustion chamber of the internal combustion engine (100). 20
[039]
The increase in streamlined turbulent flow of the intake air provides combustion of air and fuel in a streamlined fashion and reduces the amount of emission of poisonous gases reduces. This in turn increases efficient burning of air and fuel mixture and thereby reduces the overall carbon emissions in the atmosphere and hence increases the overall engine efficiency. In another exemplary 25 embodiment, at least one of the plurality of intake nozzles (108a, 108b) is disposed inclinedly at an inclination (Z) from the one or more intake ports (104). In another exemplary embodiment, the inclination (Z) is in a range of 25-30 degrees with respect to a longitudinal axis (C-C’). In another exemplary embodiment, the plurality of intake nozzles (108a, 108b) is disposed on outer periphery (120a, 120b) of the 30 one or more intake ports (104). In another embodiment, the plurality of intake
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nozzles
(108a, 108b) is disposed on an outer periphery (120a, 120b) of the one or more intake ports (104). In one exemplary embodiment, the plurality of slots (112a, 112b) is disposed on opposite sides of the central bore axis (AA’). In another exemplary embodiment, the plurality of intake nozzles (108a, 108b) is disposed angularly opposite to each other when viewed along the central bore axis (AA’). 5
[040]
Figure 5 illustrates graphical representation of comparative study of turbulent flow of air inside one or more intake ports of the internal combustion engine (100), in accordance with an embodiment of the present subject matter. In the exemplary graphical representation, an increase in combustion efficiency of the internal combustion engine (100) is shown as a measure of tumble flow 10 measurement (RPM) of the atmospheric air intake from the plurality of intake nozzles (108a, 108b). In the graphical representation shown as (A) displays the tumble flow rpm of conventional configuration of plurality of intake nozzles (108a, 108b) being disposed parallel to each other. In the graphical representation shown as (B) displays the tumble flow rpm of the claimed configuration of plurality of 15 intake nozzles (108a, 108b) being disposed inclinedly to each other at a predetermined inclination of 5-10 degrees. In an exemplary embodiment, the combustion efficiency of the internal combustion engine (100) has increased in an range of 25-30% as compared to combustion efficiency of a conventional internal combustion engine (100). 20
[041]
Figure 6 illustrates a side view representing a streamlined turbulent flow of intake air in a combustion chamber of the internal combustion engine (100), in accordance with an embodiment of the present subject matter. In an exemplary embodiment, the internal combustion engine (100) comprising the combustion chamber (400). In one embodiment, the one or more intake ports (104) is disposed 25 at one end of the combustion chamber (400) and the one or more exhaust ports (110) is disposed at an opposite end of the combustion chamber (400). In an exemplary embodiment, the atmospheric air intake (300a) from the one or more intake ports (104) is shown. In another exemplary embodiment, the atmospheric air intake (300b) from one of the plurality of intake nozzles (108a) is shown. The atmospheric air 30 intake (300a) from the one or more intake ports (110) gets mixed with the
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atmospheric air intake (300b) from the one of the plurality of intake nozzles (108a)
in the combustion chamber (400) and the enhanced combustion efficiency of the internal combustion engine (100) is achieved due to homogeneous mixing of the atmospheric air intake (300a, 300b) across the entire volume of the combustion chamber (400) rather than localized mixing of the atmospheric air intake 5 (300a,300b) in conventional internal combustion engines (100).
[042]
Various embodiments of the invention packaging of one or more secondary nozzles at a predetermined angle with respect to a central bore axis for increasing streamlined flow of air and for increasing combustion efficiency of an internal combustion engine. 10
[043]
The present invention is an internal combustion engine comprising a cylinder head and a cylinder block. The cylinder block comprising one or more intake ports and one or more exhaust ports. The one or more intake ports is provided with a plurality of intake nozzles. The at least one of plurality of intake nozzles is disposed inclinedly at a predetermined inclination with respect to a central bore axis 15 of the one or more intake ports for increasing combustion efficiency of the internal combustion engine.
[044]
The present claimed invention solves the technical problem of non-uniform and localized mixing of air fuel mixture in the combustion chamber of the internal combustion engines leading to reduced combustion efficiency and 20 performance of the internal combustion engine.
[045]
Specifically, the inclination of the plurality of intake nozzles with respect with each other at a predetermined inclination provides uniform and homogeneous mixing of the air and fuel throughout the volume of the combustion chamber and thereby provides streamlined turbulent flow of air and fuel mixture in the internal 25 combustion engine.
[046]
Additionally, the streamlined and homogeneous turbulent flow of the air fuel mixture enhance the combustion efficiency of the internal combustion engine in a range of 25-30%.
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[047]
Furthermore, the increased combustion efficiency of the internal combustion engine increases the response time of a throttle input and thereby increases the overall engine efficiency.
[048]
Considering the above-mentioned advantages and the technical advancements provided by the disclosed internal combustion engine comprising 5 plurality of intake nozzles being inclinedly disposed to each other, the claimed invention as discussed above is not routine, conventional, or well understood in the art, as the claimed invention enable the following solutions to the existing problems in conventional technologies. Further, the claimed invention clearly bring an improvement in the configuration and packaging of the plurality of intake nozzles in 10 the internal combustion engine and thereby increases the combustion efficiency of the internal combustion engine as the claimed invention provide a technical solution to a technical problem.
[049]
Furthermore, the disclosed invention is not abstract and a person skilled in the art would not be motivated to design the plurality of intake nozzles at a 15 predetermined inclination with respect to each other and with respect to other components of the internal combustion engine.
[050]
While the present invention has been shown and described with reference to the foregoing preferred embodiments, it will be apparent to those skilled in the art that changes in form, connection, and detail may be made therein without departing 20 from the spirit and scope of the invention.
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Reference Numerals:
100 internal combustion engine
102 cylinder block 5
104 one or more intake ports
104a, 104b one or more flow paths
106 extended flange
108a, 108b plurality of intake nozzles
110 one or more exhaust ports 10
112a, 112b plurality of slots
120a, 120b outer periphery
300a, 300b atmospheric air intake
400 combustion chamber , Claims:I/We claim:
1.
An internal combustion engine (100) comprising:
a cylinder head; and
a cylinder block (102), said cylinder block (102) comprising one or more intake ports (104) and one or more exhaust ports (110); 5
wherein said one or more intake ports (104) being provided with a plurality of intake nozzles (108a, 108b); and
wherein at least one of said plurality of intake nozzles (108a, 108b) being disposed inclinedly at a predetermined inclination (x) with respect to a central bore axis (AA’) of said one or more intake ports (104) for 10 increasing combustion efficiency of said internal combustion engine (100).
2.
The internal combustion engine (100) as claimed in claim 1, wherein saidplurality of intake nozzles (108a, 108b) comprising a first intake nozzle(108a) and a second intake nozzle (108b), wherein said first intake nozzle(108a) being disposed on a left side of said central bore axis (AA’), and15 wherein said second intake nozzle (108b) being disposed on a right side ofsaid central bore axis (AA’).
3.
The internal combustion engine (100) as claimed in claim 1, wherein saidpredetermined inclination (x) being in a range of 5-10 degrees from saidcentral bore axis (AA’).20
4.
The internal combustion engine (100) as claimed in claim 1, wherein at leastone of said plurality of intake nozzles (108a, 108b) being disposedinclinedly at an inclination (Z) from said one or more intake ports (104), andwherein said inclination (Z) being 25-30 degrees with respect to alongitudinal axis (C-C’).25
5.
The internal combustion engine (100) as claimed in claim 1, wherein saidplurality of intake nozzles (108a, 108b) being disposed on outer periphery(120a, 120b) of said one or more intake ports (104).
6.
The internal combustion engine (100) as claimed in claim 1, wherein at leastone of said plurality of nozzles (108a, 108b) being disposed at a preset angle30
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(Y)
from a lateral axis of said cylinder block (102), and wherein said presetangle (Y) being in a range of 30-45 degrees.
7.
The internal combustion engine (100) as claimed in claim 1, wherein saidplurality of nozzles (108a, 108b) being disposed in a plurality of slots (112a,112b), and wherein said plurality of slots (112a, 112b) being disposed on a5 portion of said one or more intake ports (104).
8.
The internal combustion engine (100) as claimed in claim 7, wherein said plurality of slots (112a, 112b) being disposed on opposite sides of said central bore axis (AA’).
9.
The internal combustion engine (100) as claimed in claim 7, wherein said10 plurality of intake nozzles (108a, 108b) being disposed angularly opposite to each other.