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CVT

A continuously variable transmission, input shaft technology, used in transmission parts, belts/chains/gears, mechanical equipment, etc., can solve the problems of excess lubricating oil and poor efficiency, and achieve the effect of reducing friction

Active Publication Date: 2017-07-11
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the amount of oil discharged by a general oil pump is proportional to the engine speed, and the inertial force of the connecting rod is proportional to the square of the engine speed. (When the transmission ratio is OD) and the low vehicle speed condition with a small eccentricity (when the transmission ratio is UD), the amount of lubricating oil supplied becomes redundant (refer to Figure 8B )
The excess lubricating oil acts as agitation resistance of the bearing and deteriorates the efficiency

Method used

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Embodiment Construction

[0027] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the embodiment described below is an example of the implementation means of this invention, and this invention is applicable to the structure which modified or deform|transformed the following embodiment in the range which does not deviate from the summary. In addition, it goes without saying that the continuously variable transmission of the present invention can be applied to applications other than automobiles.

[0028] First, refer to figure 1 and figure 2 , the structure of the continuously variable transmission of this embodiment will be described.

[0029] The continuously variable transmission 1 of the present embodiment is a transmission capable of making the speed ratio i (i=rotational speed of the input shaft / rotational speed of the output shaft) infinite (∞) and making the rotational speed of the output shaft "0", that is, It is a ...

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Abstract

The invention provides a continuous variable transmission. The continuous variable transmission is provided with an oil path penetrating through a part of an accommodating hole (6a) of an eccentric part (6) outwardly from the internal periphery. The oil path (3) is provided with an inlet hole (33a) supplying lubricating oil from the accommodating hole (6a) of the eccentric part (6); and an outlet hole (33b) discharging lubricating oil to the external. At least the outlet hole (33b) of the oil path of the oil path (33) is arranged on an extension line (Ra1) of a line (Ra) connecting the rotation center (P1) of an input shaft and the center (P2) of a cam part (5) when a specific eccentric volume (R1(R10<=R1<=R1max)) is adjusted through an eccentric volume adjusting mechanism (8-14). The specific eccentric volume (R1) is corresponding to a transmission ratio (TD) of the maximum speed when a vehicle is moving on a flat road.

Description

technical field [0001] The invention relates to an oil feeding structure of a continuously variable transmission of a four-joint linkage mechanism. Background technique [0002] For example, Japanese Patent Laid-Open No. 2012-1048 describes a four-joint linkage type continuously variable transmission that converts the rotation of the input shaft connected to the engine into the reciprocating motion of the connecting rod, and connects the connecting rod through the one-way clutch. The reciprocating motion of the rod is converted into the rotary motion of the output shaft. [0003] The above-mentioned four-joint link mechanism type continuously variable transmission is provided with an oil passage penetrating from the inner circumference of the eccentric disc to the outer circumference, and the lubricating oil supplied to the center shaft hole of the input shaft by the oil pump relies on the centrifugal force generated by the rotation of the input shaft. And it is supplied to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H57/04
CPCF16H21/20F16H57/043F16H57/0431F16H57/0434
Inventor 西村优史
Owner HONDA MOTOR CO LTD
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