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Power unit for two-wheel motorcycle

一种两轮摩托车、动力单元的技术，应用在传动箱、传动装置、车辆部件等方向，能够解决过多油路等问题，达到提高设计的自由度、提高自由度、避免油路个数的效果

Inactive Publication Date: 2008-07-02
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As disclosed in the above-mentioned Patent Document 1, in a power unit having only a starting clutch, if the starting clutch is provided on the drive pulley shaft, the load applied to the starting device can be reduced, but when the vehicle stops , before the pulley groove widths of the drive pulley and the driven pulley of the continuously variable transmission become a state corresponding to a low speed, the starting clutch is disengaged, so that a state corresponding to a high speed with the continuously variable transmission may occur at the next start Start situation
[0006] In addition, as disclosed in Patent Document 2, when oil pressure is used to control the disconnection and engagement switching of multiple clutches, as the number of oil passages increases, a complex oil passage structure is formed, and it is necessary to consider the formation of the oil passages too much.

Method used

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  • Power unit for two-wheel motorcycle
  • Power unit for two-wheel motorcycle
  • Power unit for two-wheel motorcycle

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Embodiment Construction

[0029] Embodiments of the present invention will be described below based on the embodiments of the present invention shown in the drawings.

[0030] Fig. 1~Fig. 7 represent the first embodiment of the present invention, Fig. 1 is the front view of power unit, Fig. 2 is the sectional view of line 2-2 of Fig. 1, Fig. 3 is the enlarged view of the position indicated by the arrow 3 of Fig. 2, Fig. 4 is an enlarged view of the location indicated by arrow 4 in FIG. 2 , and FIG. 5 is a perspective view showing the linkage and connection relationship between the side bracket and the input clutch. FIG. 6 is an enlarged view of the location indicated by arrow 6 in FIG. 2 . Line 7-7 enlarged section view.

[0031] First of all, the power unit PA in Fig. 1 is mounted on a two-wheeled motorcycle, and the power unit PA includes: a V-type 4-cylinder internal combustion engine EA, and the power of the internal combustion engine EA is transmitted to the driving wheel after speed change and de...

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Abstract

A power unit for a motorcycle having a continuously variable transmission, which is housed in a transmission chamber inside a engine body and which accomplishes stepless changes in the transmission of power from a drive pulley shaft to a driven pulley shaft by changing the effective diameter with which a belt actually wraps around each of the drive and the driven pulleys. An input clutch is set between a crankshaft and a drive pulley and is provided on the drive pulley shaft. A starter clutch is set between a driven pulley shaft and a rear wheel and is provided on the driven pulley shaft. The switching between the engagement and disengagement of one of the input clutch and the starter clutch is hydraulically controlled. Meanwhile, the switching between the engagement and disengagement of the other one of the input clutch and the starter clutch is mechanically controlled.

Description

technical field [0001] The present invention relates to a power unit for a motorcycle in which a continuously variable transmission is accommodated in a transmission chamber in a main body part of an internal combustion engine. A driving pulley on the pulley shaft, a driven pulley provided on a driven pulley shaft having an axis parallel to the driving pulley shaft, and a belt wound around the driving pulley and the driven pulley, the The continuously variable transmission continuously changes the power transmission from the driving pulley to the driven pulley shaft by changing the winding radius of the belt wound around the driving pulley and the driven pulley. Background technique [0002] Patent Document 1 has already known a power unit for a motorcycle in which a starting clutch is provided on the drive pulley shaft of a continuously variable transmission. In the open state, in addition, in a four-wheeled motor vehicle, the following structure has been known through Pat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B67/06F16H57/02F16H57/04B60K17/04B60K17/02B60K17/06F02B61/02F02B61/06F16H9/18
CPCY10T477/6203F16H57/04F16H9/18
Inventor 中岛寿光三堀敏正近藤仁
Owner HONDA MOTOR CO LTD
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