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Power unit for vehicle

A power device and vehicle technology, applied in transmission control, control devices, vehicle components, etc., can solve the problems of engine front and rear length growth, front and rear length growth, etc., achieve compact control force transmission path, improve cooling performance, and shorten distance Effect

Inactive Publication Date: 2008-05-07
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the vehicle power unit disclosed in the aforementioned Patent Document 1, the clutch actuator is arranged at the rearmost part of the engine body, and the front-rear length of the engine is increased, so the front-rear length of the vehicle body is also increased.
Especially in the longitudinal multi-cylinder engine whose crankshaft is along the front-rear direction of the vehicle as disclosed in the above-mentioned Patent Document 1, the front-rear length of the engine is further increased.

Method used

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  • Power unit for vehicle
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Embodiment Construction

[0031] Next, embodiments of the present invention will be described with reference to the embodiments of the present invention shown in the drawings.

[0032] 1 to 12 show a first embodiment of the present invention. Fig. 1 is a side view of a two-wheeled motor vehicle. Fig. 2 is an enlarged side view of the vicinity of a power unit of the motorcycle. Fig. 3 is a front view seen from the direction of arrow 3 in Fig. 2 . Fig. 4 is a plan view of the power unit. Fig. 5 is a sectional view taken along line 5-5 in Fig. 4 . Fig. 6 is a view along line 6-6 in Fig. 4 . Fig. 7 is an enlarged sectional view along line 7-7 in Fig. 5 . FIG. 8 is an enlarged view of an essential part of FIG. 7 . FIG. 9 is a view seen from the direction of arrow 9 in FIG. 4 . FIG. 10 is a view seen from the direction of arrow 10 in FIG. 6 . Fig. 11 is a longitudinal sectional view showing the structure of a shift actuator. Fig. 12 is a sectional view taken along line 12-12 in Fig. 11 .

[0033] I...

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Abstract

The present invention provides a power unit for a vehicle having a crankshaft rotatably supported to a crankcase while having its axis set along the front-rear direction of said vehicle in the power transmission path for transmitting a rotational drive force of said crankshaft to a drive wheel, and a clutch is provided in said power transmission path for switching connection and disconnection of the transmission of power. A clutch actuator(96) that is provided on the engine body (11) is mounted on said engine body for controlling the switching between an engaged condition and disengaged condition of said clutch, and the length from the front to the back of the engine and the vehicle can be prevented from being longer by using side arranging method of the clutch actuator.

Description

technical field [0001] The present invention relates to a power plant for a vehicle, in which a crankshaft has an axis line along the front-rear direction of the vehicle and is rotatably supported by a crankcase, and in the middle of a power transmission path that transmits rotational power of the crankshaft to drive wheels, An on / off clutch capable of switching power transmission is provided, and a clutch actuator for controlling on / off switching of the above-mentioned clutch is installed on the engine body including the above-mentioned crankcase. Background technique [0002] Such a power plant for a vehicle is disclosed in, for example, Patent Document 1 or the like. [0003] Patent Document 1: Japanese Patent Application Laid-Open No. 11-222043 [0004] However, in the vehicle power unit disclosed in the aforementioned Patent Document 1, the clutch actuator is arranged at the rearmost part of the engine body, and the front-rear length of the engine is increased, so that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D48/06B60K17/04F16H61/32
CPCB60K17/02B60K23/02F02B61/02
Inventor 塚田善昭有马刚
Owner HONDA MOTOR CO LTD