TECHNICAL FIELD
The present invention relates to a power unit for a motor vehicle, and more particularly, the present subject matter relates to a lubrication system for a rotating member of the power unit for the motor vehicle.
BACKGROUND
Generally, a power unit for a motor vehicle generates power that get transferred to one or more wheels of the motor vehicle. The power unit comprises various rotating members supported therein. The various rotating members require lubrication to reduce friction experienced during their operation. Generally, a lubricating oil is circulated in the power unit to enable the lubrication of various components like cylinder head, cylinder head in case of the power unit being an internal combustion engine. Also, the lubricating oil helps in cooling of the components about which the lubricating oil flows.
BRIEF DESCRIPTION OF THE DRAWINGS
The detailed description is described with reference to the embodiment of a saddle type vehicle along with the accompanying figures. In the figures, similar numbers are used throughout the drawings to reference like features and components.
Fig. 1 depicts a left side view of an exemplary motor vehicle, in accordance with an embodiment of the present subject matter.
Fig. 2 illustrates a front perspective view of a power unit, in accordance with an embodiment of the present subject matter.
Fig. 3 illustrates a schematic side view of a power unit without a cover member, in accordance with an embodiment of the present subject matter.
Fig. 4 depicts a perspective view of a cover member, in accordance with an embodiment of the present subject matter.
Fig. 5 depicts a side view of a cover member, in accordance with an embodiment of the present subject matter.
Fig. 6 depicts a sectional side view of a cover member, in accordance with an embodiment of the present subject matter.

[00010] Fig. 7 depicts a schematic side view of a cover member and a rotating member, in accordance with another embodiment of the present subject matter. [00011] Fig. 8 (a) depicts a schematic isometric view of a cover member and Fig. 8 (b) depicts a schematic enlarged isometric view of the cover member along with a rotating member, in accordance with an embodiment of the present subject matter.
[00012] Fig. 9 depicts a schematic sectional view of the cover member, in accordance with an embodiment of the present subject matter.
DETAILED DESCRIPTION
[00013] The power unit includes a transmission system, which transfers the power and torque generated by the power unit to the one or more wheels. The transmission system may include a clutch member, which is a critical member for engaging and disengaging the power unit with the transmission system. Further, the power unit includes many such rotating member that require consistent cooling. Similarly, the clutch member also requires constant lubrication for cooling. For example, the parts like clutch member are subjected to rotation during engine operation and the clutch member has parts that undergo axial movement viz. pressure plates and friction plates. Such parts get heated up due to constant engagement with each other.
[00014] Conventionally, some vehicles with the rotating parts like clutch member or the like are having at least a body portion of the rotating member submerged into the lubricating oil. For example, the power unit may have an oil sump into which the part is at least partially submerged. The rotational motion of the part causes the lubricating oil to stick to part thereby causing lubrication of the part and also lubrication of other parts like piston due to splashing. However, when the rotating part is operated at high speed, the amount of lubricating oil sticking to the part for lubrication and for cooling is not sufficient. Moreover, the rotation of the part through the lubricating oil may create drag thereby affecting the performance of the power unit. In addition, the level of lubricating oil in the power unit may get reduced with time, which would result in poor or inadequate lubrication.

Additionally, some customers may not use recommended engine oil quantity aggravating the durability of the powertrain. This improper lubrication affects the durability of parts like the clutch system, whereby the level of the oil in sump is lower. For example, in parts like clutch member this may lead to clutch burn and wash out of parts like primary bush.
[00015] Moreover, in certain motor vehicle configurations, the clutch member is disposed in proximity to a rider’s foot. Excessive heating of the rotating members with poor cooling causes heating of the power unit thereby causing discomfort to the rider due to the excessive heat.
[00016] Certain solutions are proposed in the prior art to address this problem. The prior art solutions still do not provide sufficient lubrication to the desired part. For example, prior art solutions provide lubrication only to certain portions of the rotating part with poor reach, which would still affect the life of the part due to improper lubrication or due to heating.
[00017] Thus, there is a need for a power unit a lubrication system capable of providing effective & robust lubrication to the rotating parts like clutch member for improving lubrication and cooling of the part(s) thereby improving life of the parts and for providing consistent performance even with low quality & inferior quality of the lubricant.
[00018] The present subject matter provides a power unit for a motor vehicle. The power unit comprises a cover member secured to a casing that supports a rotating member of the power unit. The cover member at least partially covers at least one rotating member. The cover member comprises a liquid dispensing path disposed in a fluid communication with at least one lubrication path of the power unit. The liquid dispensing path is disposed in a radial direction with respect to the rotating member and the liquid dispensing path is capable of providing a lubricating liquid like lubricating oil in a substantially radial direction towards the rotating member like the clutch member.
[00019] In one embodiment, the cover member comprises a peripheral wall and a bulge portion. The peripheral wall comprising an inward face that is substantially facing a radial-outward face of the rotating member and the liquid dispensing path

is configured to have an exit portion for the lubricating oil on the inward face. Thus, the lubricating oil thrown radially from the liquid dispensing path reaches various parts of clutch member like plates, clutch housing, primary driven bush etc. with improved reach.
[00020] It is an aspect that the liquid dispensing path that is capable of providing pressured lubricating oil on to the rotating member in radial direction also causes splashing of oil onto the inner surface of the cover member thereby causing cooling of the lubricating member by utilizing larger surface of the cover member. [00021] In one embodiment, the peripheral wall additionally comprises a cover-lubrication path that complements a casing-lubrication path, which in an assembled condition for one lubrication path and the cover-lubrication path comprises a first accumulation portion comprising a pre-determined accumulation volume. The liquid dispensing path is provided on the first accumulation portion to cause jettisoning of lubricating oil.
[00022] In one embodiment, the first accumulation portion is provided on a front portion of the cover member whereby the lubricating oil is subjected to quick cooling due to laterally extending portion of the cover member. The first accumulation portion is protruding inward in radial direction (taking reference of the rotating member), and the first accumulation portion comprises an elongated profile with a long axis disposed with a forward inclination with respect to imaginary horizontal line. Thus, within the first accumulation portion, the lubricating oil is collected towards one side due the inclination thereby providing desired force/ pressure for causing a throw on to the rotating member. [00023] In one embodiment, the first accumulation portion comprises a liquid dispensing path provided at an upper portion with a path axis disposed at a first angle with respect to an imaginary horizontal line, wherein the first angle is an acute angle taken in either angular direction. Thus, the first angle of the path axis provides the desired projectile path for the lubricating oil to reach the rotating member.
[00024] In one embodiment, the cover member comprises a cover-lubrication path provided in a fluid communication with an additional accumulation portion

formed in proximity to the cover-lubrication path. The additional accumulation
portion comprises a pre-determined accumulation volume and the liquid
dispensing path is provided on the additional accumulation portion. The additional
accumulation portion accommodates the desired lubricating oil for jettisoning
onto the rotating member without affecting the lubricating oil flow towards other
components of the power unit.
[00025] In one embodiment, an additional accumulation portion is disposed on an
upper portion of the peripheral wall of the cover member, wherein the liquid
dispensing path is provided on a downward side of the additional accumulation
portion for radially providing lubricating oil onto the rotating member.
[00026] In one embodiment, the liquid dispensing path is provided such that an
imaginary radial line of the rotating member, which is cutting through the liquid
dispensing path, is at a second angle that is at an acute angle.
[00027] In one embodiment, the liquid dispensing path is disposed at a lateral
offset with respect to a lateral center of the rotating member, and wherein the
liquid dispensing path is comprising a path axis disposed at a third angle, with
respect to a longitudinal axis of the motor vehicle/ power unit. The third angle of
the path axis enables jettisoning of the lubricating oil onto the rotating member
and also onto the rotating member and also onto the inner surface of the cover
member.
[00028] Thus, the present subject matter provides effective lubrication of the
clutch member, even in a condition where the level of lubricating oil in the oil
sump is low.
[00029] The present subject matter provides the throw of lubricating oil at a
desired force to reach the rotating member in the radial direction as the oil flow is
regulated to avoid pressure drop in other critical places.
[00030] The present subject matter effectively utilizes the large surface area of the
cover member due to throw of lubricating oil onto rotating member in radial
direction which further causes the lubricating oil to be splashed onto the surface
of the cover member for efficient heat transfer and cooling.

[00031] These and other advantages of the present subject matter would be described in greater detail in conjunction with one or more embodiments with the corresponding figures in the following description. In the figures F represents forward direction, R represents rearward direction, RH represents right side, LH represents left side, UW represents upward direction, and DW represents downward direction with respect to a motor vehicle as reference.
[00032] Fig. 1 depicts a left side view of an exemplary motor vehicle 100, in accordance with an embodiment of the present subject matter. The motor vehicle 100 includes a frame member 105 supporting a front wheel 130 and a rear wheel 132. The front wheel 130 and the rear wheel 132 are rotatably supported by front suspension system and the rear suspension system (not shown), respectively. In one embodiment, the rear wheel 132 may be supported by a swing arm 160. In the present embodiment, a power unit 200 is fixedly mounted to the frame member 105. A fuel tank 140 is mounted to the frame member 105 and is disposed above the power unit 200. A seat assembly 150 is disposed rearward of the fuel tank 140.
[00033] The vehicle 100 includes a pair of rider foot support structures 175 disposed substantially adjacent to the present embodiment, in the present embodiment. The power unit 200 is coupled to a transmission system (not shown) for transferring power to one or more wheels. The power unit 200 may be swingably mounted to the frame member 105. Further, in one embodiment, the rear wheel 132 is swingably supported by a swingarm 160. The present subject matter provides improved lubrication and cooling of the power unit 200 thereby improving drivability or riding experience of user as a region near foot support structure 175 does not get heated up.
[00034] Fig. 2 illustrates a front perspective view of a power unit, in accordance with an embodiment of the present subject matter. Fig. 3 depicts a schematic right-side view of the power unit, in accordance with an embodiment of the present subject matter. Fig. 3 depicts the power unit with a cover member 225 in a removed condition. The power unit 200 comprises a cylinder head cover 201, a cylinder head 202, a cylinder block 203, and a casing 204. In one embodiment, the

casing 204 is made of a first side casing 205 and a second side casing 206, which are capable of rotatably supporting various parts of the power unit 200 comprising a primary drive shaft. The primary drive shaft in an internal combustion engine acting as a power unit is a crankshaft. The power unit 200 supports at least one rotating member that requires lubrication and/ or cooling. In the present embodiment, the primary drive shaft is connected to a first rotating member 220. In the present embodiment, the first rotating member 220 is clutch member which engages and disengages the primary drive shaft from the transmission system depending upon at least one of a user input or a controller input. The transmission system can be a multi-gear transmission which offers different gear ratios. Further, one or more covers of the power unit 200 are provided on lateral sides thereof for covering the components extending from the casing 204 and the components, which are disposed on outward lateral side of the casing 204. For example, a cover member 225 is disposed to cover a rightward outer lateral side of the casing 204. For brevity, the ‘first rotating member’ is interchangeably referred to as ‘clutch member’.
[00035] The power unit 200 comprises a centrifugal filter 240, according to the present embodiment, for filtering the lubricating oil before transmitting to the cooling channel/path. The centrifugal filter 240 is coupled to the crankshaft for rotating therewith and is disposed along the axis of the crankshaft. An oil pump assembly 245 is disposed adjacent to the centrifugal filter 240 and substantially below an axis of the crankshaft. The oil pump assembly 245 pumps oil from oil sump to the centrifugal filter 240, subsequent to which the lubricating oil is transferred to a lubrication path. Through the lubrication path, the lubricating oil is transferred to various components of the power unit 200 for lubrication and for cooling. The cover member 225, in an assembled condition substantially covers the rotating member 220, the centrifugal filter 240 and the oil pump assembly 245.
[00036] Referring to Fig. 3, the power unit 200 comprises a lubrication path comprising a casing-lubrication path 250, which is formed on the casing 204 and similarly, a complementing cover-lubrication path 260 is provided on the cover

member 225 (shown in Fig. 4). The casing 204 comprises a peripheral wall 255, which is formed on an axial face/ lateral face of the casing 204. The peripheral wall 255 comprises a walled portion 255W that defines the casing-lubrication path 250. The corresponding cover-lubrication path 260 is provided on a mating face of the cover member 225 thereby forming a passage for lubricant flow. [00037] Fig. 4 depicts a perspective view of a cover member, in accordance with an embodiment of the present subject matter. The cover member 225 comprises a peripheral wall 230 and a bulge portion 231. The peripheral wall 230 forms an open end of the cover member 225 and is a mating portion disposed substantially orthogonal to the bulge portion 231 for abutting the casing 204 (shown in Fig. 3). The cover-lubrication path 260 is formed as part of the peripheral wall 230. In one embodiment, an additional wall 270 is formed to define a path with a gap therebetween. The lubrication path 250, 260 is disposed to be in a fluid communication with an oil flow path (not shown) created in the cylinder block 203, the cylinder head 202 and any other portion(s) of the power unit 200. A liquid dispensing path 235 is disposed in fluid communication with at least one lubrication path of the power unit 200. Since, the cover member 225 is capable of covering in lateral direction and in radial direction of the rotating member 225, the liquid dispensing path 235 capable of providing a lubricating liquid in a substantially radial direction towards rotating member 220 is provided on an inner facing side FI of the cover-lubrication path 260 of the cover member 225. [00038] Fig. 5 depicts a side view of a cover member, in accordance with an embodiment of the present subject matter. In Fig. 5, the dotted circular line represents a projection of the rotating member 220 (as shown in Fig. 3) on the cover member 225. The cover-lubrication path 260 comprises a first portion 261 with one end 261A, which is in fluid communication with the oil pump assembly 245 (as shown in Fig. 3). A first accumulation portion 265 forms part of the cover-lubrication path 260. The first accumulation portion 265 is in fluid communication with the first portion 261, wherein the lubricating oil subsequently flows through a lubrication path created in the cylinder block. In the present embodiment, a second portion 263 of the cover-lubrication path 260 is in fluid

communication with an exit portion (not shown) of the cylinder block at an end portion 263A, wherein the lubricating oil passes from the second portion 263 to a drain path 264 created on the cover member 225. In one embodiment, a plate member (not shown) may be used to provide on inner lateral side of the cover member 225 to define the drain path 264.
[00039] In the present embodiment, the cover member 225 comprises the peripheral wall 230 comprising an inward face FI substantially facing a radial-outward face FO of the rotating member 220 and the liquid dispensing path 235 is comprising an exit portion provided on the inward face FI. This enables the throwing or jettisoning of lubricating oil towards the rotating member 220 like the clutch member 220 whereby the lubricating oil reaches various parts of the clutch member 220 like clutch plates, friction plates etc. thereby providing lubrication between the plates and helping in cooling of the clutch member 220, which produces heat due to frictional operation. As schematically depicted in Fig. 5, the lubrication liquid, which can a lubricating oil or the like, is thrown from the liquid dispensing path 235 towards the rotating member 220. Further, the provision of the liquid dispensing path 235 on the first accumulation portion 265 provides the desired pressure and defining a pre-determined accumulation volume V1 of lubricating oil for throwing or jettisoning onto the rotating member 220. The present subject matter provides the feasibility of defining the volume of the accumulation portion, wherein the volume in combination with a diameter of the liquid dispensing path 235 helps in defining the pressure and throw of the lubricating oil. Moreover, a drop in pressure along the oil path is eliminated due to accumulation of lubricating oil. Furthermore, the lubricating oil that is thrown on to the rotating member 220 is also splashed onto the bulge portion 231 of the cover member 225, which has larger area, thereby enabling quick cooling of the lubricating oil. The lubricating oil reaching or sprayed onto the clutch member 220 in radial direction thereof thereby enables penetration of the lubricating oil into the clutch member 220.
[00040] Fig. 6 depicts a sectional side view of the cover member taken along axis Y-Y’ as shown in Fig. 4, in accordance with an embodiment of the present subject

matter. The first accumulation portion 265 is provided at a front portion FP of the cover member 225. Thus, the cover member 225 that is substantially extending in lateral direction RH-LH, the front portion FP of the cover member 225 is subjected to cooling due to flow of air reaching the cover member 225 thereby cooling the lubricating oil. The ‘front portion’ is substantially a front half portion of the cover member 225 taken in longitudinal direction F-R. The first accumulation portion 265 is protruding inward in radial direction with respect to rest of the cover-lubrication path 260. The first accumulation portion 265 comprises an elongated profile with a long axis L-L’ as shown in Fig. 6, when viewed in a lateral inner side, disposed at an angle with respect to an imaginary horizontal line HL. In the depicted embodiment, the first accumulation portion 265 with the elongated profile is configured with a forward inclination. Analogous to the aforementioned forward inclination, the long axis L-L’ is disposed at an angle in the range of 10 to 45 degrees with respect to an imaginary horizontal line HL.
[00041] In one embodiment, the first accumulation portion 265 comprises a liquid dispensing path 235 provided at an upper portion thereof and the liquid dispensing path 235 is comprising a path axis P-P’ disposed at a first angle α with respect to an imaginary horizontal line HL, wherein the first angle α is in the range of -50 degrees to 50 degrees depending on the position of the first accumulation portion 265. Thus, the forward inclination of the first accumulation member causes the lubricating oil to flow towards a rear portion thereof, in the present embodiment, whereby the lubricating oil reaches the liquid dispensing path 235. In one embodiment, the liquid dispensing path 235 can have a cylindrical hole with the path axis P-P’. The lubricating oil flows through the liquid dispensing path 235 and gets thrown or jettisoned in a radial direction, with respect to the rotating member 220, onto the rotating member 220 thereby avoiding the rotating member to operate in dry condition. As shown in Fig. 4, the lubricating oil reaches the clutch member/ rotating member 220 whereby the lubricating oil reaches the clutch plates and the friction plates thereby providing desired effective & robust lubrication for the clutch and it helps in cooling of clutch member 220 and cooling

of a primary driven bush causing cooling thereof thereby improving the performance of the clutch member. The cooling of the clutch member 220 improves the life of the clutch member 220. The present subject matter provides a 0.5 cost-effective design from avoiding burn of clutch plates and primary driven bush wear issues. The power unit ensures that even at lower engine speed/ rotation per minute, the lubricating oil coming out of liquid dispensing path 235 will cause lubrication of the clutch member 220. As the lubricating oil from the liquid dispending path 235 reaching the rotating member in a radial direction forms an effective flow that is easy to penetrate between parts like clutch plates, friction plates etc. and in reaching center portion of the rotating member thereby causing effective cooling.
[00042] Thus, pressurized lubricating oil from oil pump assembly 245 that reaches the liquid dispensing path 235 of the cover member 225 gets sprayed onto inner surface of the cover member 225 due to the presence of various rotating members thereby causing splashing of lubricating throughout the cover member 225 inner surface utilizing substantial surface area of the cover member 225 for cooling of the lubricating oil. The liquid dispensing path comprises a diameter optimized to attain desired pressure and at the same time ensuring flow rate of lubricating oil to other places of the power unit like the like crankshaft, camshaft, cylinder block etc. In a preferred embodiment, the diameter of the liquid dispensing path is kept in the range of 0.5 to 1.0 millimeters.
[00043] Fig. 7 depicts a schematic side view of a cover member, in accordance with another embodiment of the present subject matter. Fig. 8 (a) depicts an isometric view of a cover member, in accordance with another embodiment of the present subject matter. Fig. 8 (b) depicts an enlarged view of a portion of a cover member, in accordance with another embodiment of the present subject matter. In Fig. 7, the clutch member 220 is also shown without other connecting or mounting provisions for brevity. The cover member 325 is designed to be secured to a lateral side of the power unit 200. The cover member 325 comprises a peripheral wall 330 and a bulge portion 331, wherein the cover member 325 gets secured to the peripheral wall 330. The cover member 325 comprises a cover-

lubrication path 360 defined substantially along the peripheral wall 325. The cover member 325 comprises an additional accumulation portion 385 formed in proximity to the cover-lubrication path 360 and the additional accumulation portion 385 comprising a pre-determined accumulation volume. A liquid dispensing path 335 is provided on the additional accumulation portion 385. The cover-lubrication path 360 is connected with the additional accumulation portion 385 through a regulating groove 380. In one embodiment, the regulating groove 380 is formed in the form of a recess on the lateral surface of the peripheral wall 330. The liquid dispensing path 335 is capable of throwing or jettisoning lubricating oil in radial direction towards a rotating member 220.
[00044] As shown in Fig. 8 (a), the rotating member being a clutch member comprises a primary driven gear 221 that gets connected to a primary drive (not shown) of a primary drive shaft like a crankshaft of the power unit. Further, the clutch member comprises a clutch housing 222, and a plurality of plates 223, 224 comprising pressure plates, friction plates etc. The clutch member 220 acts a connecting and disconnecting member between the primary drive shaft and the transmission system.
[00045] The additional accumulation portion 385 comprises a pre-determined accumulation volume V2 that is in fluid communication with a cover-lubrication path 360 of the cover member 320. In the present embodiment, the liquid dispensing path 335 is provided on an upper portion UP of the peripheral wall 330. In one embodiment, the liquid dispensing path 335 is provided on a downward portion/ downward facing side of the additional accumulation portion 385. Fig. 8 (b) schematically depicts a lubricating oil throw towards the clutch member 220. Thus, the lubricating oil reaches the plates 223, 224, wherein the clutch housing 222 comprises plurality of recess whereby the lubricating oil reaches through the recess.
[00046] As shown in Fig. 7, the liquid dispensing path 335 is provided at the upper portion UP and a forward portion with respect to the clutch member 220. Further, an imaginary radial line RL from the rotating member 220 cutting through the axis of the liquid dispensing path 335 is disposed at a second angle β

with respect to an imaginary horizontal line HL, wherein the second angle β is an acute angle in the range of 10-80 degrees. The second angle β is disposed such that the lubricating oil is thrown or jettisoned radially towards the clutch member 220. Moreover, the lubricating oil is thrown in radial direction towards the rotating member 220.
[00047] Fig. 9 depicts a schematic sectional view of the cover member along with the rotating member taken along axis X-X’ as shown in Fig. 8 (a), in accordance with an embodiment of the present subject matter. The liquid dispensing path 335 is disposed at angle extending in a lateral direction RH-LH. In the present embodiment, the liquid dispensing path 335 is comprising a path axis P-P’ extending in laterally outward direction. When viewed in a top direction, the path axis P-P’ is disposed at a third angle γ with respect to a vehicle longitudinal axis F-R. In a preferred embodiment, the third angle is in the range of 25-35 degrees. In one embodiment, the orientation of the liquid dispensing path 335 enables throwing/ jettisoning of lubricating oil on to the clutch member 220 towards inner surface of the cover member 325 whereby the surface area of the cover member 325 is utilized for cooling. Even a rotating member 220 disposed at a lateral offset LO with respect to an exit portion of the liquid dispensing path 335, the lubricating oil is jettisoned such that the components disposed at offset are lubricated and the lubricating oil reaches the inner surface of the cover member 325.
[00048] It is to be understood that the aspects of the embodiments are not necessarily limited to the features described herein. Many modifications and variations of the present subject matter are possible in the light of above disclosure. Therefore, within the scope of claims of the present subject matter, the present disclosure may be practiced other than as specifically described.

List of reference signs:
100 motor vehicle 30 245 oil pump assembly
105 frame member 250 casing-lubrication path
106 head pipe 255 peripheral wall
107 main frame 255W walled portion
130 front wheel 260 cover-lubrication path
132 rear wheel 35 261 first portion
150 seat assembly 261A end portion (first portion)
160 swingarm 263 second portion
170A/170B 263A end portion (second portion)
Panel 265 first accumulation portion
175 foot support structures 40 270 additional wall
200 power unit 380 regulating groove
201 cylinder head-cover 385 additional accumulation
202 cylinder head portion
203 cylinder block FI inner face
204 crankcase 45 FO outer face
205 first side casing HL imaginary horizontal line
206 second side casing P-P’ path axis 208 intake port L-L’ long axis 220 rotating member/ FP front portion
clutch member 50 UP upper portion
222 clutch housing RL radial line
223/ 224 plates F-R longitudinal direction/ axis
225/325 cover member RH-LH lateral direction
230/330 peripheral wall α first angle
231/331 bulge portion 55 β second angle
235/ 335 liquid dispensing path γ third angle
240 centrifugal filter

We claim:
1. A power unit (200) for a motor vehicle (100), said power unit (200)
comprising:
a casing (204), said casing (204) capable of supporting at least one rotating member (220); and
a cover member (225, 325) secured to said casing (204) and said cover member (225, 325) at least partially covering said at least one rotating member (220), said cover member (225, 325) comprising:
a liquid dispensing path (235, 335), said liquid dispensing path (235, 335) disposed in fluid communication with at least one lubrication path (250, 260, 360) disposed on at least one peripheral wall (230, 330), said liquid dispensing path (235, 335) disposed substantially in a radial direction with respect to said rotating member (220).
2. The power unit (200) for the motor vehicle (100) as claimed in claim 1,
wherein the cover member (225, 325) comprises a peripheral wall (230, 330) and
a bulge portion (231, 331), said cover member (225, 325) abutting said casing
(204) through said peripheral wall (230, 330), said peripheral wall (230, 330)
comprising an inward face (FI) substantially facing a radial-outward face (FO) of
said rotating member (220) and said liquid dispensing path (235, 335) is
configured to have an exit portion thereof on said inward face (FI).
3. The power unit (200) for the motor vehicle (100) as claimed in claim 1,
wherein said peripheral wall (231) comprises a cover-lubrication path (260), and
said cover-lubrication path (260) comprises a first accumulation portion (265)
comprising a pre-determined accumulation volume (V1), said liquid dispensing
path (235) is configured on said first accumulation portion (265).
4. The power unit (200) for the motor vehicle (100) as claimed in claim 3,
wherein said first accumulation portion (265) is provided on a front portion (PF)

of said cover member (225), said first accumulation portion (265) is protruding inward in radial direction, and said first accumulation portion (265) comprises an elongated profile, and when viewed in a lateral inner side, said elongated profile comprises a long axis (L-L’) disposed with a forward inclination with respect to imaginary horizontal line (HL).
5. The power unit (200) for the motor vehicle (100) as claimed in claim 4, wherein said first accumulation portion (265) comprises a liquid dispensing path (235) provided at an upper portion (UP) thereof and said liquid dispensing path (235) is comprising a path axis (P-P’) disposed at a first angle (α) with respect to an imaginary horizontal line (HL), wherein said first angle (α) is in the range of -50 to +50 degrees.
6. The power unit (200) for the motor vehicle (100) as claimed in claim 1, wherein said cover member (325) includes a peripheral wall (331), said peripheral wall (331) comprises a cover-lubrication path (360), and said peripheral wall (331) comprises an additional accumulation portion (385) formed in proximity to a cover-lubrication path (360) of said cover member (325) and said additional accumulation portion (385) comprising a pre-determined accumulation volume (V2), said liquid dispensing path (335) is provided on said additional accumulation portion (385).
7. The power unit (200) for the motor vehicle (100) as claimed in claim 6, wherein said additional accumulation portion (385) is disposed on an upper portion (PU) of the peripheral wall (331) of the cover member (325), wherein said liquid dispensing path (335) is provided on a downward side of the additional accumulation portion (385).
8. The power unit (200) for the motor vehicle (100) as claimed in claim 6, wherein said rotating member (220) comprises an imaginary radial line (RL) cutting through said liquid dispensing path (335) at a second angle (β), wherein

said second angle (β) is an acute angle with respect to an imaginary horizontal line (HL) and said second angle is in range of 10 to 80 degrees.
9. The power unit (200) for the motor vehicle (100) as claimed in claim 1, wherein said liquid dispensing path (335) is disposed at a lateral offset (LO) with respect to a lateral center (LC) of said rotating member (220), and wherein said liquid dispensing path (335) is comprising a path axis (P-P’) disposed at a third angle (γ), with respect to a longitudinal axis (F-R) of the motor vehicle (100), wherein said third angle (γ) is an acute angle in the range of 25 to 35 degrees.
10. The power unit (200) for the motor vehicle (100) as claimed in claim 1, wherein said rotating member (220) is a clutch member capable of connecting and disconnecting a transmission system.