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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 to transmission boxes, motor vehicles, transmission parts, etc., can solve problems such as mud adhesion, and achieve the effects of preventing oil adhesion, providing appearance, and promoting gravity separation.

Active Publication Date: 2007-05-16
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

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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] Fig. 1~Fig. 16 represent an embodiment of the present invention, Fig. 1 is the side view of scooter type vehicle, Fig. 2 is the enlarged view of the main part of Fig. 1, Fig. 3 is the 3-3 line sectional view of Fig. 2, Fig. 4 is an enlarged view of the main part of FIG. 2, FIG. 5 is a side view corresponding to FIG. 4 with the radiator cover removed, FIG. 6 is a perspective view of the exhaust purification device, and FIG. 8 is an enlarged transverse sectional view showing the vicinity of the driven pulley of the continuously variable transmission, FIG. 9 is an enlarged left side view of the air filter, FIG. 10 is a view from the direction of 10 in FIG. Figure 9 is an enlarged cross-sectional view of line 11-11, Figure 12 is a cross-sectional view of line 12-12 in Figure 11, Figure 13 is a cross-sectional view of line 13-13 i...

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Abstract

Provided is a two-wheeled motor vehicle transmission box aeration structure, which can reliably prevent the turbid water into the aeration vent communicating with the reducer chamber. In the two-wheeled motor vehicle, the driving unit together with the engine to compose the power unit is constituted of a speed changer for process shift on the output of the engine, and gear reduction mechanism for decelerating the output of the speed changer and transferring to the rear wheel. The speed changer chamber for housing the speed changer and the reducer chamber for housing the gear reduction mechanism and stocking engine oil at the bottom are formed in the wheel box disposed connecting with the engine main body and extending toward the side of the back wheel, wherein, in order to communicate with the upside in the reducer chamber and with one end connecting the aeration pipe (114) with the wheel box along the upside of the wheel box (71) forwards, the other end of the aeration 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 Applications(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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