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Two-wheeled motor vehicle transmission box aeration structure

A technology for two-wheeled motor vehicles and ventilation structures, which is applied in the directions of transmission boxes, motor vehicles, and transmission parts, etc., can solve problems such as mud adhesion, and achieve the effects of preventing oil adhesion, promoting gravity separation, and reducing the number of parts.

Active Publication Date: 2009-08-12
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But, in the structure disclosed in above-mentioned Patent Document 1, since the outlet of the ventilation passage opens downward at a position close to the ground, it is impossible to completely prevent the mud from adhering to the ground according to the difference in the amount of muddy water splashed by the running of the two-wheeled motor vehicle. Problems on the outlet of the air passage

Method used

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  • Two-wheeled motor vehicle transmission box aeration structure
  • Two-wheeled motor vehicle transmission box aeration structure
  • Two-wheeled motor vehicle transmission box aeration structure

Examples

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Embodiment Construction

[0041] Hereinafter, an embodiment of the present invention will be described based on an example of the present invention shown in the drawings.

[0042] Figure 1 to Figure 16 represents an embodiment of the present invention, figure 1 It is a side view of the scooter type vehicle, figure 2 yes figure 1 An enlarged view of the main part of the image 3 yes figure 2 The 3-3 line profile, Figure 4 yes figure 2 An enlarged view of the main part of the Figure 5 It is correspondence in the state that removed the radiator cover Figure 4 side view of Figure 6 is a perspective view of the exhaust purification device, Figure 7 yes Figure 4 The 7-way view of the Figure 8 It is an enlarged horizontal cross-sectional view showing the vicinity of the driven pulley of the continuously variable transmission, Figure 9 It is an enlarged left side view of the air filter, Figure 10 yes Figure 9 The 10-way view of the Figure 11 yes Figure 9 The enlarged cross-secti...

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Abstract

The invention provides a ventilation structure of a transmission case of a two-wheeled motor vehicle, which can reliably prevent muddy water from infiltrating into a ventilation outlet communicating with a reducer chamber. In this two-wheeled motor vehicle, the transmission device constituting the power unit together with the engine is composed of a transmission for changing the speed of the output of the engine and a gear reduction mechanism for reducing the output of the transmission and transmitting it to the rear wheels, and the transmission is housed. The transmission chamber and the speed reducer chamber that accommodates the gear reduction mechanism and stores oil in the lower part are formed in the transmission case that is connected to the engine main body and extends laterally to the rear wheels, wherein the speed reducer chamber is connected to the speed reducer chamber The upper part of the ventilating pipe (114) is communicated so that one end is connected with the transmission box and extends forward along the upper part of the transmission case (71), and the other end of the ventilating pipe (114) opens upwards.

Description

technical field [0001] The present invention relates to a two-wheeled motor vehicle, wherein a transmission device constituting a power unit together with an engine is composed of a transmission for changing the speed of the output of the engine and a gear reduction mechanism for reducing the output of the transmission and transmitting it to the rear wheels, The transmission chamber that accommodates the transmission and the speed reducer chamber that accommodates the gear reduction mechanism and stores oil in the lower part are formed in a transmission case that is connected to the engine body and extends laterally to the rear wheels. Improvement of the ventilation structure for leading exhaust gas from the reducer chamber in the gearbox. Background technique [0002] For example, there is known a power unit for a two-wheeled vehicle as described in Patent Document 1, in which a transmission case is provided with a vent passage for exhausting exhaust gas outside the transmi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/02B62K11/10F16H57/027
Inventor 池田次男山西辉英梅泽尚司
Owner HONDA MOTOR CO LTD
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