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Power unit for vehicle

A vehicle power and vehicle body technology, applied in the directions of engine components, pressure lubricants, machines/engines, etc., can solve the problems of increasing the lateral width of the power unit and occupying a large space, and achieve the effect of ensuring stable support

Active Publication Date: 2011-01-26
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this configuration, there is a problem that the oil pump and the gear train occupy a large space, so that the generator protrudes outward in the vehicle width direction, thus increasing the lateral width of the power unit

Method used

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  • Power unit for vehicle
  • Power unit for vehicle

Examples

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Embodiment Construction

[0028] figure 1 It is a side view of the motorcycle 1 provided with the vehicle power unit 20 according to an embodiment of the present invention. In this motorcycle 1, the vehicle body frame 2 includes a head tube 3, a main frame 4, a pair of left and right pivot brackets 5, a pair of left and right seat guide rails 6, and an intermediate frame 7. The front part of the main frame 4 extends obliquely downward from the head tube 3 in an oblique manner, the pivot bracket 5 is fixed to the rear of the main frame 4 in a downwardly extending manner, and the seat guide rail 6 is Near the front of the fixed installation position of the pivot bracket 5 extends obliquely upward from the rear of the main frame 4, bends at the middle part, and extends to the rear end of the vehicle. The middle frame 7 is respectively interposed between the pivot bracket 5 and the center of the seat rail 6.

[0029] A driver's seat 8 is provided above the pair of left and right seat rails 6 of the vehi...

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PUM

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Abstract

A power unit for a vehicle has a cam chain (81) mounted to one side of a cylinder so as to transmit power of a crankshaft (36), directed in the vehicle width direction, to a cam shaft (79) of a valve gear mechanism, an electric generator (92) located outward from the cam chain (81) in the axis direction of the crankshaft (36) and rotated by the crankshaft (36), a drive pulley shaft (39) driven by the crankshaft (36), and a belt type electrodeless transmission (38) having a driven pulley shaft (40) driven by the drive pulley shaft (39). The belt type electrodeless transmission (38) is mounted to one end side of the crankshaft (36), and the electric generator (92) is mounted to the other end side. In order that the electric generator (92) does not protrude outward, the power unit has an inner transmission case (86) mounted to a crankcase (25) and covering the electrodeless transmission (38) from the inside thereof and also has an outer transmission case (87) for covering the electrodeless transmission (38)from the outer side thereof, a lubricating oil supplying pump (71) is mounted to the opposite side of the cylinder axis of an internal combustion engine from the cam chain (81), and the oil pump (71)is mounted to the crankcase (25) to the inner transmission case (86) side thereof.

Description

technical field [0001] The present invention relates to a vehicle power unit provided with an oil pump for supplying lubricating oil, and more specifically, to improvements in arrangement of such an oil pump and a driving device for the oil pump. Background technique [0002] There is known a motorcycle in which a body-mounted power unit has a belt-type continuously variable transmission at one end of the crankshaft, a valve operating mechanism driving a cam chain and a generator at the other end of the crankshaft, and the driven pulley of the continuously variable transmission The power of the engine is transmitted to the output shaft of the power unit through the centrifugal clutch, and the power of the output shaft is transmitted to the rear wheels through the rear wheel drive chain. In this type of motorcycle, generally, the oil pump for lubricating oil supply of the power unit is arranged on the side where the cam chain and the generator are arranged, the gear train for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M1/02F01M1/06
CPCF01M2001/066F01M1/08F01M2001/083F01M2001/086
Inventor 滝口亲司阿部克哉
Owner HONDA MOTOR CO LTD
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