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Clutch device and power transmission device

A technology for clutch devices and servos, applied in clutches, friction clutches, fluid-driven clutches, etc., can solve problems such as reduced controllability, and achieve the effects of improved responsiveness, stable release performance, and good controllability

Inactive Publication Date: 2018-05-11
AISIN AW CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If centrifugal hydraulic pressure is generated, the effective pressure of the hydraulic pressure applied to the piston depends on the rotation speed, and the controllability may decrease

Method used

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  • Clutch device and power transmission device
  • Clutch device and power transmission device
  • Clutch device and power transmission device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] Here, the parsed exploit uses the above Figure 4 , Figure 5A , Figure 5B The second clutch C2 of the piston 40 of the illustrated embodiment is a dynamic pressure loss when a predetermined flow rate of oil pressure is supplied under the condition of a predetermined rotational speed. show the results in Figure 7B middle.

Embodiment 2

[0088] In addition, as in Example 1, the analysis using the above-mentioned Figure 6A The second clutch C2 of the piston 140 in the illustrated embodiment is a dynamic pressure loss when a predetermined flow rate of oil pressure is supplied under the condition of a predetermined rotational speed. show the results in Figure 7B middle.

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PUM

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Abstract

Protrusions (46) have stirring surfaces for stirring or damming hydraulic oil provided to the side surfaces, an oil chamber sectioning part (22) has a supply hole (22c) communicated with a hydraulic oil chamber (50) from the rotational center side and capable of supplying hydraulic oil from the exterior of the hydraulic oil chamber (50), and during minimal volume of the hydraulic oil chamber (50)when the protrusions (46) are in contact with the oil chamber sectioning part (22), the supply hole (22c) is disposed so as to diametrically face a flow passage formed by being enclosed by the protrusions (46), the oil chamber sectioning part (22), and a piston (40), which are circumferentially adjacent.

Description

technical field [0001] The present invention relates to a clutch device and a power transmission device suitable for, for example, a transmission mounted on a vehicle. Background technique [0002] Conventionally, for example, in an automatic transmission having a multi-stage transmission, a friction engagement device (hereinafter collectively referred to as a clutch device) having a multi-plate clutch and a multi-plate brake has been used in order to form a plurality of shift speeds by hydraulic supply and discharge. As a clutch device, there is known a clutch device that has: a piston that can press a multi-plate friction plate to engage it; The oil pressure of sliding; and the release oil chamber are arranged on the opposite side of the working oil chamber in the axial direction across the piston (refer to Patent Document 1). [0003] In such a clutch device, a centrifugal oil pressure that increases the oil pressure is generated on the outer peripheral side in the hydra...

Claims

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Application Information

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IPC IPC(8): F16D25/0638
CPCF16D25/14F16D2021/0661F16D25/0638F16D25/10F16D3/18F16D13/644F16D13/70F16D21/06F16D25/12F16D2500/50293F16H63/3026
Inventor 村上正典池田翔太仁科友宏田村翼
Owner AISIN AW CO LTD
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