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A filter device for attenuating vibrations in conduit of hydraulic actuation system for disconnect clutch

A separation clutch, hydraulic actuation technology, applied in the direction of fluid pressure actuation device, fluid pressure actuation system components, clutches, etc., can solve the problem of annoying tingling

Pending Publication Date: 2021-03-02
LEICAM POWERTRAIN LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, in the absence of a filter, the driver's feet can experience an annoying tingling sensation due to the approaching pressure wave or pulse transmitted to the clutch pedal as a vibration through the fluid in the pressurized conduit

Method used

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  • A filter device for attenuating vibrations in conduit of hydraulic actuation system for disconnect clutch
  • A filter device for attenuating vibrations in conduit of hydraulic actuation system for disconnect clutch
  • A filter device for attenuating vibrations in conduit of hydraulic actuation system for disconnect clutch

Examples

Experimental program
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Effect test

Embodiment Construction

[0014] First refer to Figure 1-Figure 3 , The filter device in one embodiment of the present invention is indicated by reference numeral 10 as a whole. The filter device 10 comprises a generally tubular outer body 11 that is axially elongated, preferably rectilinear, in a direction defined herein as "longitudinal". As understood herein, terms and phrases denoting direction and orientation (eg "axial", "longitudinal", "radial" or "transverse") are to be interpreted with reference to the longitudinal actuation axis x of the filter device.

[0015] The outer body 11 has two opposite ends: a first hydraulic connection 17 on a first end, in use connected to a slave cylinder (not shown); a second end with a second hydraulic connection 18, in use connected to a master cylinder (not shown). exist Figure 1-Figure 3 In the embodiment shown, the hydraulic connection 17 on the driven side is a male connection, while the connection 18 on the driving side is a female connection.

[00...

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PUM

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Abstract

The filter device comprises a tubular outer body having a chamber (14) containing a pair of floating and coaxially slidably mounted cup-shaped valve elements (21, 22) having opposite cavities in whichaxial compression springs (23) are housed. The first valve element (21) is arranged coaxially outside the second valve element (22) and has a base (25) with a central opening (26) and a tubular portion with a series of ribs (27). The second valve element (22) has a perforated base (32) that is securable against a perforated plug (37) of the cavity on the side facing the master cylinder. The plug(37) forms a through seat (36) which slidably accommodates the extension (35) of the second valve element (22). Channels (39) are formed around the plug, which establish fluid communication between the chamber (14) and the channels (15) leading to the master cylinder.

Description

technical field [0001] The present invention relates to a filtering device for attenuating vibrations, typically at low frequencies, in a pressurized conduit of a hydraulic actuation system for a disconnect clutch. The filter device is suitable for use in a pressurized conduit section between a master cylinder and a slave cylinder in a clutch release system. Background technique [0002] During driving, even when the clutch release pedal is not operated, the driver may put his foot on the pedal. In this case, in the absence of a filter, the driver's feet can experience an annoying tingling sensation due to the approaching pressure wave or pulse transmitted as vibrations to the clutch pedal through the liquid in the pressurization conduit. These vibrations originate from the electric motor, which transmits them to the flywheel of the clutch. [0003] The function of a filter device of the type described above is to attenuate the axial vibrations which, in the pressurized fl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D25/12F15B21/00F15B21/041
CPCF16D25/14F15B21/008F15B21/041F16D2048/0215F16D48/02F16D2048/0221F16D2048/023F16D25/08F16D65/0006F16K15/025F16D2025/081F16D2300/22F16D25/12F16D2121/04F16K2200/301
Inventor 珍·巴普蒂斯特·贝德里格南斯弗朗西斯卡·博托
Owner LEICAM POWERTRAIN LLC
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