Description:FIELD OF THE INVENTION
[001] Present invention relates to an internal combustion engine for a vehicle. Embodiments of the present invention disclose a coolant tank cover for covering a coolant reservoir unit provided within the internal combustion engine.

BACKGROUND OF THE INVENTION
[002] Vehicles, such as two-wheeled motorcycle type vehicles, are provided with an internal combustion (IC) engine. The IC engine provides the motive force required for movement of the vehicle. Typically, the IC engine is provided with a clutch unit for selectively transmitting power to a transmission unit of the vehicle, thereby controlling the motive force delivered to a wheel of the vehicle for movement. The clutch unit is mounted adjacently to a crankcase of the IC engine. The clutch unit is covered by a clutch cover that is mounted onto the crankcase. The clutch cover provides ingress protection to the clutch unit, while also enhancing aesthetic appeal of the IC engine. Typically, the clutch cover is a single piece member that extends along entire length of the crankcase. As such, during a maintenance event of the clutch unit, the bulky clutch cover is required to be removed from the crankcase, which is laborious and affects serviceability of the IC engine.
[003] In recent past, the IC engines are provided with a coolant reservoir unit that is disposed within the crankcase. The coolant reservoir unit is adapted to supply coolant to a radiator unit for cooling the IC engine. The conventional single piece clutch cover that is mounted on the crankcase for covering the clutch unit also covers the coolant reservoir unit, thereby enclosing the coolant reservoir unit within the crankcase. However, during a maintenance event of the coolant reservoir unit, the bulky single piece clutch cover is required to be removed, which is laborious. Additionally, the single piece clutch cover is also required to be manufactured keeping in mind the position of the coolant reservoir unit, thereby making the construction of the single piece clutch cover complex. Moreover, due to multiple casting and fabrications process involved in manufacturing the single piece of clutch cover, the construction of the single piece clutch cover is complex. Further, tensile strength and rigidity of the single piece of clutch cover is difficult to maintain at high temperatures, inherently affecting performance characteristics of the IC engine and hence the vehicle, which is undesirable.
[004] On the contrary, the single piece clutch cover can be made smaller for only accommodating the clutch unit. However, such a construction of the clutch cover may not adequately accommodate other components that are disposed on the crankcase such as an oil filter unit and may also negatively affect aesthetics of the vehicle.
[005] Thus, there is a need for an internal combustion engine, which addresses at least the aforementioned problems.

SUMMARY OF THE INVENTION
[006] In one aspect, an Internal Combustion (IC) engine for a vehicle is disclosed. The IC engine comprises a cylinder head, a cylinder block mounted below the cylinder head and a crankcase mounted below the cylinder block. The crankcase encloses a crankshaft and is adapted to store lubricating oil. A coolant reservoir unit is disposed within the crankcase. The coolant reservoir unit is fluidically coupled to a radiator unit of the IC engine, wherein the coolant reservoir unit is adapted to circulate the coolant fluid in the radiator for cooling the IC engine. A coolant tank cover is mounted onto the crankcase. The coolant tank cover is adapted to cover the coolant reservoir unit.
[007] In an embodiment, the crankcase comprises a crankshaft coupled to a transmission assembly of the vehicle through a clutch unit. The clutch unit is mounted on one of a right peripheral surface and a left peripheral surface of the crankcase, wherein the coolant reservoir unit is disposed adjacently to the clutch unit.
[008] In an embodiment, the coolant reservoir unit is located in one of in front of the clutch unit and behind the clutch unit in a front-rear direction of the vehicle.
[009] In an embodiment, a clutch cover assembly is mounted onto the crankcase. The clutch cover assembly is adapted to cover the coolant reservoir unit and the clutch unit. The clutch cover assembly comprises a first cover adapted to cover the clutch unit and the coolant tank cover. The coolant tank cover is disposed in one of in front of the first cover and behind the first cover corresponding to the disposition of the coolant reservoir unit.
[010] In an embodiment, the clutch cover assembly is provided with a level indicator for determining a level of coolant within the coolant reservoir unit.
[011] In an embodiment, the coolant tank cover is provided with one of a substantially C-shaped profile and an inverted C-shaped profile when viewed in a right-side view of the vehicle. The coolant tank cover comprises a main body and a top mounting surface extending from the main body. The top mounting surface is adapted to engage with a top rim surface of the crankcase. A bottom mounting surface extends from the main body. The bottom mounting surface is adapted to engage with a bottom rim surface of the crankcase. A side mounting surface extends from the main body and adjoins the top mounting surface and the bottom mounting surface. The side mounting surface is adapted to engage with a side rim surface of the crankcase, wherein the top mounting surface and the bottom mounting surface is adapted to engage with the first cover to form the clutch cover assembly.
[012] In an embodiment, an inner coolant tank cover is mounted onto the coolant reservoir unit. The inner coolant tank cover is adapted to cover the coolant reservoir unit.
[013] In an embodiment, the coolant tank cover is mounted onto the crankcase over the inner coolant tank cover. The coolant tank cover is adapted to cover the coolant reservoir unit along with the inner coolant tank cover within the crankcase.
[014] In an embodiment, the inner coolant tank cover is provided with a connector hose for receiving a hose member. The hose member is coupled to the radiator unit for circulating the coolant.
[015] In an embodiment, shape and structure of the inner coolant tank cover corresponds to shape and structure of an outer surface of the coolant reservoir unit.
[016] In an embodiment, the inner coolant tank cover is sandwich mounted with the coolant tank cover and the crankcase through one or more fasteners. The one or more fasteners are adapted to engage with a plurality of mounting provisions provided on the coolant tank cover, mounting provisions provided on the coolant reservoir unit and the crankcase for the sandwich mounting.
[017] In another aspect, the coolant tank cover for the IC engine is disclosed. The coolant tank cover is adapted to cover the coolant reservoir unit disposed within a crankcase of the IC engine. The coolant tank cover comprises the main body and the top mounting surface extending from the main body. The top mounting surface is adapted to engage with the top rim surface of the crankcase. The bottom mounting surface extends from the main body. The bottom mounting surface is adapted to engage with the bottom rim surface of the crankcase. The side mounting surface extends from the main body and adjoins the top mounting surface and the bottom mounting surface. The side mounting surface is adapted to engage with the side rim surface of the crankcase, wherein the top mounting surface and the bottom mounting surface is adapted to engage with the first cover to form the clutch cover assembly.
[018] In an embodiment, the top mounting surface and the bottom mounting surface are adapted to engage with the first cover, the top mounting surface and the bottom mounting surface upon engagement with the first cover form the clutch cover assembly.

BRIEF DESCRIPTION OF THE DRAWINGS
[019] Reference will be made to embodiments of the invention, examples of which may be illustrated in accompanying figures. These figures are intended to be illustrative, not limiting. Although the invention is generally described in context of these embodiments, it should be understood that it is not intended to limit the scope of the invention to these particular embodiments.
Figure 1 is a right-side view of an Internal Combustion (IC) engine for a vehicle, in accordance with an exemplary embodiment of the present invention.
Figure 2 is a front view of the IC engine, in accordance with an exemplary embodiment of the present invention.
Figure 3 is a perspective view of a crankcase mounted with a clutch cover assembly, in accordance with an exemplary embodiment of the present invention.
Figure 4 is an exploded view of the crankcase depicting a coolant reservoir unit mounted with an inner coolant tank cover, in accordance with an exemplary embodiment of the present invention.
Figure 5 is an exploded view of the crankcase depicting the coolant reservoir unit mounted with a coolant tank cover of the clutch cover assembly, in accordance with an exemplary embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION
[020] The present invention relates to an Internal Combustion (IC) engine for a vehicle. The IC engine comprises a coolant tank cover, which is adapted to cover a coolant reservoir unit provided within the IC engine. The IC engine is typically used in the vehicle such as a two-wheeled vehicle, a three-wheeled vehicle, a four wheeled vehicle or a multi-wheeled vehicle as per requirement.
[021] In the present disclosure, the arrow indications provided in Figure 1 pertain to directional indications of the IC engine with respect to the vehicle. As such, the terms “front side”, “rear side”, “right side”, “left side”, “upside” and “downside” respectively correspond to front, rear, right, left, up and down sides of the IC engine with respect to the vehicle, until and unless specified otherwise.
[022] Figure 1 is a right-side view of an Internal Combustion (IC) engine 100 for a vehicle, in accordance with an exemplary embodiment of the present invention. The IC engine 100 is adapted to be mounted onto the vehicle through a frame member (not shown). The IC engine 100 provides motive force required for movement of the vehicle. In the present embodiment, the vehicle is a motorcycle. Alternatively, the vehicle may be any one of a scooter, a three-wheeled vehicle, a trike, or a multi-wheeled vehicle as per requirement.
[023] The IC engine 100 comprises a cylinder head 102 mounted over a cylinder block 104. The cylinder head 102 is adapted to enclose components such as valvetrain components (not shown), a camshaft assembly (not shown), a spark plug (not shown) and the like. The cylinder block 104 comprises a combustion chamber (not shown) and encloses a piston (not shown) that is connected to a connecting rod (not shown). The connecting rod is in-turn connected to a crankshaft (not shown). The crankshaft is housed within a crankcase 106 that is mounted below the cylinder block 104. The crankcase 106 also stores lubricating oil and thus acts as an oil sump for the IC engine 100. In an embodiment, the crankcase 106 is a vertical split-type crankcase or a horizontal split-type crankcase.
[024] During operation of the IC engine 100, the piston draws in air and/or fuel (also known as ‘charge’) into the combustion chamber through an intake valve (not shown) provided in the cylinder head 102. Subsequently, the piston compresses the charge in the combustion chamber. The compressed charged is ignited through the spark plug. The ignition results in generation of the motive force which pushes away the piston. The movement of the piston is transferred to the crankshaft through the connecting rod. The crankshaft is coupled to a wheel (not shown) of the vehicle through a transmission assembly (not shown). Accordingly, the crankshaft drives the wheel for movement of the vehicle. Upon ignition of the charge, the piston thereafter discharges the exhaust gases from the IC engine 100, by pushing away the gases generated in the combustion chamber through an exhaust valve (not shown) provided in the cylinder head 102.
[025] Referring to Figures 2 and 3 in conjunction with Figure 1, the transmission assembly is provided adjacently to the crankcase 106. The transmission assembly comprises a clutch unit (not shown) and a gearbox assembly (not shown). The clutch unit and the gearbox assembly are disposed on an outer surface (not shown) of the crankcase 106. In an embodiment, the clutch unit is mounted on a right peripheral surface (or right-side outer surface) of the crankcase 106, while the gearbox assembly is mounted on a left peripheral surface (or left-side outer surface) of the crankcase 106. In another embodiment, the clutch unit is mounted on the left peripheral surface of the crankcase 106, while the gearbox assembly is mounted on the right peripheral surface of the crankcase 106. In other words, the clutch unit is mounted on the opposite surface of the crankcase 106, for ease of packaging and for effective utilization of space around the crankcase 106. The clutch unit is enclosed on the crankcase 106 by a clutch cover assembly 112, while the gearbox assembly is enclosed on the crankcase 106 by a gearbox cover 132. The clutch cover assembly 112 and the gearbox cover 132 are adapted to provide ingress protection to the clutch unit and the gearbox assembly respectively, upon mounting onto the crankcase 106.
[026] Referring to Figure 4, the crankcase 106 is adapted to enclose a coolant reservoir unit 108 that is coupled to a radiator unit (not shown) of the IC engine. In other words, the coolant reservoir unit 108 is provided within the crankcase 106 of the IC engine 100. The coolant reservoir unit 108 is adapted to store a coolant, and the coolant is circulated into the radiator unit from the coolant reservoir unit 108. The radiator unit is thermally coupled to the IC engine 100. The radiator unit is adapted to extract heat from the IC engine during operation, thereby ensuring optimal thermal conditions during operation of the IC engine 100.
[027] In an embodiment, the coolant reservoir unit 108 is disposed in front of the clutch unit in a front-rear direction of the vehicle. In another embodiment, the coolant reservoir unit 108 is disposed in front of an oil filter that is provided in front of the clutch unit in the front-rear direction of the vehicle. In an embodiment, the coolant reservoir unit 108 is provided in between the clutch unit and the gearbox assembly when viewed from a front view of the IC engine 100. In an embodiment, the coolant reservoir unit 108 is provided behind the clutch unit, as per feasibility and requirement.
[028] Further, the IC engine comprises an inner coolant tank cover 126 that is adapted to be mounted onto the coolant reservoir unit 108. The inner coolant tank cover 126 is adapted to be mounted on an outer surface 108a of the coolant reservoir unit 108. As such, the shape and structure of the inner coolant tank cover 126 corresponds to shape and structure of the outer surface 108a of the coolant reservoir unit 108. The inner coolant tank cover 126 upon mounting onto the outer surface 108a ensures storing of the coolant within the coolant reservoir unit 108. The inner coolant tank cover 126 is provided with one or more first mounting members 136 which align with mounting provisions 138 provided on the outer surface 108a of the coolant reservoir unit 108. Each of the one or more first mounting members 136 and the mounting provisions 138 are fastened through one or more fasteners 140, thereby ensuring mounting between the inner coolant tank cover 126 and the coolant reservoir unit 108. In an embodiment, the inner coolant tank cover 126 is mounted onto the coolant reservoir unit 108 through a four-point mounting. Accordingly, four first mounting members 136 and four mounting provisions 138 are provided for enabling the four-point mounting.
[029] The inner coolant tank cover 126 further comprises a connector hose 128. The connector hose 128 is connected to a hose member 130 which in-turn is connected to the radiator unit. Accordingly, the coolant reservoir unit 108 is adapted to circulate the coolant to the radiator unit through the connector hose 128 and the hose member 130. In an embodiment, the dimensions of the connector hose 128 and the hose member 130 is selected based on the flow rate of coolant required with the radiator unit.
[030] In an embodiment, the inner coolant tank cover 126 comprises a first portion 126a and a second portion 126b. The first portion 126a may be a circular portion or a substantially circular portion. The second portion 126b may be a tangential portion that extends upwardly from the first portion 126a. In an embodiment, the shape and construction of the first portion 126a and the second portion 126b may be selected based on construction of the coolant reservoir unit 108. In an embodiment, the connector hose 128 is provided on the first portion 126a of the inner coolant tank cover 126. Alternatively, the connector hose 128 may be provided to the second portion 126b of the inner coolant tank cover 126 as per requirement.
[031] Referring to Figure 5 in conjunction with Figures 1-4, a coolant tank cover 110 is depicted. The coolant tank cover 110 is adapted to be mounted onto the crankcase 106 for covering the coolant reservoir unit 108. Also, the coolant tank cover 110 is mounted or positioned over the inner coolant tank cover 126, upon mounting onto the crankcase 106. Thus, the coolant tank cover 110 is adapted to cover the inner coolant tank cover 126 as well as the coolant reservoir unit 108, upon mounting onto the crankcase 106. Further, the coolant tank cover 110 is adapted to be mounted in front of the clutch unit or behind the clutch unit based on position of the coolant reservoir unit 108. In an embodiment, the coolant tank cover 110 is provided with a level indicator 114 (as shown in Figure 1). The level indicator 114 is adapted to enable determination of a level of coolant within the coolant reservoir unit 108. In an embodiment, the level indicator 114 is a transparent portion provided on the coolant tank cover 110 for determining the coolant level in the coolant reservoir unit 108.
[032] In an embodiment, the coolant tank cover 110 is provided with a substantially C-shaped profile. In another embodiment, the coolant tank cover 110 may also be provided with an inverted C-shaped profile. The coolant tank cover 110 comprises a main body 118 adapted to cover a substantial right-side portion of the crankcase 106. A top mounting surface 120 extends from the main body 118. The top mounting surface 120 acts as a top mount for the coolant tank cover 110 and thus engages with a top rim surface 106a of the crankcase 106. Further, a bottom mounting surface 122 extends from the main body 118. The bottom mounting surface 122 acts as bottom mount for the coolant tank cover 110 and thus engages with the bottom rim surface 106b of the crankcase 106. Further, a side mounting surface 124 extends from the main body 118. The side mounting surface 124 is provided corresponding to the location of the coolant tank cover 110. That is, if the coolant tank cover 110 is provided in front of the first cover 116, the side mounting surface 124 is provided in front of the top mounting surface 120 and the bottom mounting surface 122. In an embodiment, the side mounting surface 124 is provided behind the top mounting surface 120 and the bottom mounting surface 122, when the coolant tank cover 110 is provided behind the first cover 116. The side mounting surface 124 adjoins the top mounting surface 120 and the bottom mounting surface 122. The side mounting surface 124 is adapted to engage with a side rim surface 106c of the crankcase 106. In an embodiment, the side mounting surface 124 is adapted to engage with the side rim surface 106c that is provided in front of the clutch unit when the coolant reservoir unit 108 is provided in front of the clutch unit. In an embodiment, the side mounting surface 124 is adapted to engage with the side rim surface 106c that is provided behind the clutch unit when the coolant reservoir unit 108 is provided behind the clutch unit.
[033] In an embodiment, the top mounting surface 120, the bottom mounting surface 122 and the side mounting surface 124 may be dome shaped or curved shaped members, which are adapted to engage with the crankcase 106. In an embodiment, each of the top mounting surface 120, the bottom mounting surface 122 and the side mounting surface 124 may be provided with a mounting provision (not shown) adapted to be fasted onto the crankcase 106.
[034] In an embodiment, the coolant tank cover 110 is a sub-assembled component of a clutch cover assembly 112. Accordingly, the clutch cover assembly 112 upon mounting onto the crankcase 106 is adapted to cover the coolant reservoir unit 108 and the clutch unit. The clutch cover assembly 112 comprise a first cover 116 adapted to cover the clutch unit and the coolant tank cover 110. The coolant tank cover 110 is adapted to be mounted in front of the first cover 116 or behind the first cover 116 based on the position of the coolant reservoir unit 108. In an embodiment, the coolant tank cover 110 is mounted in front of or behind the first cover 116 such that, the coolant tank cover 110 adjoins the first cover 116. As such, the possibility of leakage or entry of dust or water particles is prevented.
[035] In an embodiment, the inner coolant tank cover 126 is sandwich mounted between the coolant tank cover 110 and the crankcase 106 through the one or more fasteners 140. The one or more fasteners 140 are adapted to engage with a plurality of mounting provisions 134 (as shown in Figure 5) provided on the coolant tank cover 110, the mounting provisions 138 provided on the coolant reservoir unit 108 and the crankcase 106 for the sandwich mounting. In an embodiment, the plurality of mounting provisions 134 are provided onto the top mounting surface 120, the bottom mounting surface 122 and the side mounting surface 124. Accordingly, the top mounting surface 120, the bottom mounting surface 122 and the side mounting surface 124 are mounted onto the inner coolant tank cover 126 and the crankcase 106 for the sandwich mounting.
[036] The claimed invention as disclosed above is not routine, conventional or well understood in the art, as the claimed aspects enable the following solutions to the existing problems in conventional technologies. Specifically, the claimed aspect of the coolant tank cover is adapted to enclose the coolant reservoir unit that is disposed within the crankcase. Moreover, the coolant tank cover is a sub-assembled component of the clutch cover assembly, and thus mitigates the need for removing the entire clutch unit during a maintenance event of the clutch unit or the coolant reservoir unit. Further, due to split construction of the coolant tank cover from the clutch cover assembly, the coolant reservoir tank is easily accessible during the maintenance event. Moreover, due to removal of only the coolant tank cover during the maintenance event of the coolant reservoir unit, other components of the IC engine are protected and/or undisturbed unnecessarily.
[037] While the present invention has been described with respect to certain embodiments, it will be apparent to those skilled in the art that various changes and modification may be made without departing from the scope of the invention as defined in the following claims.

List of Reference Numerals
100 – Internal combustion engine
102 – Cylinder head
104 – Cylinder block
106 – Crankcase
106a – Top rim surface of the crankcase
106a – Bottom rim surface of the crankcase
106c – Side rim surface of the crankcase
108 – Coolant reservoir unit
110 – Coolant tank cover
112 – Clutch cover assembly
114 – Level indicator
116 – First cover of the clutch cover assembly
118 – Main body of the coolant tank cover
120 – Top mounting surface of the coolant tank cover
122 – Bottom mounting surface of the coolant tank cover
124 – Side mounting surface of the coolant tank cover
126 – Inner coolant tank cover
126a – First portion of the inner coolant tank cover
126b – Second portion of the inner coolant tank cover
128 – Connector hose
130 – Hose member
132 – Gearbox cover
134 – Plurality of mounting provisions on the coolant tank cover
136 – One or more first mounting members
138 – Mounting provisions
140 – One or more fasteners
, Claims:WE CLAIM:
1. An Internal Combustion (IC) engine (100) for a vehicle, comprising:
a cylinder head (102);
a cylinder block (104) mounted below the cylinder head (102);
a crankcase (106) mounted below the cylinder block (104), the crankcase (106) enclosing a crankshaft and adapted to store lubricating oil;
a coolant reservoir unit (108) disposed within the crankcase (106), the coolant reservoir unit (108) being fluidically coupled to a radiator unit of the IC engine, the coolant reservoir unit (108) being adapted to circulate a coolant fluid in the radiator for cooling the IC engine; and
a coolant tank cover (110) mounted onto the crankcase (106), the coolant tank cover (110) being adapted to cover the coolant reservoir unit (108).

2. The IC engine (100) as claimed in claim 1, wherein the crankcase (106) comprises a crankshaft, the crankshaft being coupled to a transmission assembly of the vehicle through a clutch unit, the clutch unit being mounted on one of a right peripheral surface and a left peripheral surface of the crankcase (106), wherein the coolant reservoir unit (108) is disposed adjacently to the clutch unit.

3. The IC engine (100) as claimed in claim 2, wherein the coolant reservoir unit (108) being located in one of in front of the clutch unit and behind the clutch unit in a front-rear direction of the vehicle.

4. The IC engine (100) as claimed in claim 3 comprises a clutch cover assembly (112) mounted onto the crankcase, the clutch cover assembly (112) being adapted to cover the coolant reservoir unit (108) and the clutch unit, wherein the clutch cover assembly (112) comprising:
a first cover (116) adapted to cover a clutch unit; and
the coolant tank cover (110) disposed in one of in front of the first cover (116) and behind the first cover (116) corresponding to disposition of the coolant reservoir unit (108).

5. The IC engine (100) as claimed in claim 4, wherein the coolant tank cover (110) being provided with a level indicator (114) for determining a level of coolant within the coolant reservoir unit (108).

6. The IC engine (100) as claimed in claim 4, wherein the coolant tank cover (110) being provided with one of a substantially C-shaped profile and an inverted C-shaped profile when viewed in a right side view of the vehicle, the coolant tank cover (110) comprising:
a main body (118);
a top mounting surface (120) extending from the main body (118), the top mounting surface (120) being adapted to engage with a top rim surface (106a) of the crankcase (106);
a bottom mounting surface (122) extending from the main body (118), the bottom mounting surface (122) being adapted to engage with a bottom rim surface (106b) of the crankcase (106); and
a side mounting surface (124) extending from the main body (118) and adjoining the top mounting surface (120) and the bottom mounting surface (122), the side mounting surface (124) being adapted to engage with a side rim surface (106c) of the crankcase (106),
wherein the top mounting surface (120) and the bottom mounting surface (122) being adapted to engage with the first cover (116) to form the clutch cover assembly (112).

7. The IC engine (100) as claimed in claim 1 comprising an inner coolant tank cover (126) mounted onto the coolant reservoir unit (108), the inner coolant tank cover (126) being adapted to cover the coolant reservoir unit (108).

8. The IC engine (100) as claimed in claim 7, wherein the coolant tank cover (110) being mounted onto the crankcase (106) over the inner coolant tank cover (126), the coolant tank cover (110) being adapted to cover the coolant reservoir unit (108) along with the inner coolant tank cover (126) within the crankcase (106).

9. The IC engine (100) as claimed in claim 7, wherein the inner coolant tank cover (126) being provided with a connector hose (128) for receiving a hose member (130), the hose member (130) being coupled to the radiator unit for circulating the coolant.

10. The IC engine (100) as claimed in claim 7, wherein shape and structure of the inner coolant tank cover (126) corresponds to shape and structure of an outer surface (108a) of the coolant reservoir unit (108).

11. The IC engine (100) as claimed in claim 7, wherein the inner coolant tank cover (126) is sandwich mounted with the coolant tank cover (110) and the crankcase (106) through one or more fasteners (140), the one or more fasteners (140) being adapted to engage with a plurality of mounting provisions (134) provided on the coolant tank cover (110), mounting provisions (138) provided on the coolant reservoir unit (108) and the crankcase (106) for the sandwich mounting.

12. A coolant tank cover (110) for an IC engine (100), the coolant tank cover (110) being adapted to cover a coolant reservoir unit (108) disposed within a crankcase of the IC engine (100), the coolant tank cover (110) comprising:
a main body (118);
a top mounting surface (120) extending from the main body (118), the top mounting surface (120) being adapted to engage with a top rim surface (106a) of the crankcase (106);
a bottom mounting surface (122) extending from the main body (118), the bottom mounting surface (122) being adapted to engage with a bottom rim surface (106b) of the crankcase (106); and
a side mounting surface (124) extending from the main body (118) and adjoining the top mounting surface (120) and the bottom mounting surface (122), the side mounting surface (124) being adapted to engage with a side rim surface (106c) of the crankcase (106).

13. The coolant tank cover (110) as claimed in claim 12, wherein the top mounting surface (120) and the bottom mounting surface (122) being adapted to engage with the first cover (116), the top mounting surface (120) and the bottom mounting surface (122) upon engagement with the first cover (116) form the clutch cover assembly (112).

14. The coolant tank cover (110) as claimed in claim 13 being disposed in one of in front of the first cover (116) and behind the first cover (116) corresponding to the disposition of the coolant reservoir unit (108).

15. The coolant tank cover (110) as claimed in claim 12, wherein the main body (118) being provided with a level indicator (114) for determining a level of coolant within the coolant reservoir unit (108).

Dated this 04 day of August 2023

TVS MOTOR COMPANY LIMITED
By their Agent & Attorney

(Nikhil Ranjan)
of Khaitan & Co
Reg No IN/PA-1471