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Clutch separation mechanism and clutch master cylinder

A clutch master cylinder and cylinder block technology, applied in the clutch field, can solve problems such as poor operation experience, and achieve the effect of improving operation experience

Active Publication Date: 2018-06-01
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem solved by the present invention is that the operating experience of the existing clutch separation mechanism is poor

Method used

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  • Clutch separation mechanism and clutch master cylinder
  • Clutch separation mechanism and clutch master cylinder
  • Clutch separation mechanism and clutch master cylinder

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0035] refer to figure 1 , The clutch master cylinder includes: a cylinder body 1 with a piston chamber 1a and a piston 2 located in the piston chamber 1a. The piston chamber part on one axial side of the piston 2 is a hydraulic chamber 1b, and the piston rod 4 is connected to the other axial side. The cylinder body 1 is provided with a first oil delivery part 11 communicating with the hydraulic chamber 1b, the outer peripheral surface of the piston 2 is provided with an oil groove 2a, and the cylinder body 1 is provided with a second oil delivery part 12 communicating with the oil groove 2a. An oil passage 2b is provided in the piston 2, and the oil passage 2b can communicate with the hydraulic chamber 1b and the oil groove 2a.

[0036] A breaker 3 may be provided outside the oil passage 2b. combine figure 2 , depress the clutch pedal, the piston rod 4 drives the piston 2 to move to the left, and the high-pressure oil in the squeeze hydraulic chamber 1b is output from the...

no. 2 example

[0060] refer to Figure 8 , axially away from the hydraulic chamber 1b (combined with figure 1 ), the inner peripheral surface 25' of the oil passage 2b' is provided with a first protruding part 26', the first protruding part 26' surrounds the extension part 32' of the breaker 3', and the piston passes through the first protruding part 26' It is axially opposite to the base body 30'.

[0061] A channel 32b may be provided in the extension part 32', and when the base body 30' is separated from the piston, the channel 32b communicates with both axial sides of the first protruding part 26'. The channel 32b has a first opening 324 and a second opening 325. The first opening 324 is formed on the end surface of the extension part 32' and is located on the side of the first protruding part 26' away from the hydraulic chamber 1b' in the axial direction; the second opening 325 is formed The portion of the outer peripheral surface of the extension portion 32' is close to the base body...

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Abstract

The invention provides a clutch separation mechanism and a clutch master cylinder. The clutch master cylinder includes a cylinder body having a piston cavity, and a piston positioned in the piston cavity; a part at an axial side of the piston, of the piston cavity is a hydraulic cavity; a first oil delivery portion communicating with the hydraulic cavity is arranged on the cylinder body; an oil groove is formed in an outer peripheral surface of the piston; a second oil delivery portion communicating with the oil groove is arranged on the cylinder body; an oil passage is arranged in the piston;the oil passage communicates with the hydraulic cavity and the oil groove; an on-off member is arranged inside the oil passage or outside the oil passage; the on-off member is axially opposite to thepiston; under the action of the oil pressure of the hydraulic cavity, the on-off member is pressed against the piston to block the oil passage and the hydraulic cavity; and under the action of the oil pressure of the oil passage, the on-off member can be separated from the piston so as to allow the oil passage to communicate with the hydraulic cavity. According to the clutch master cylinder, a clutch pedal is rapidly stepped and released, and when the clutch pedal is immediately stepped again, an idle stroke due to vacuum can be prevented, a driver can feel steady immediately, and the operation experience of the product is improved.

Description

technical field [0001] The invention relates to the technical field of clutches, in particular to a clutch separation mechanism and a clutch master cylinder. Background technique [0002] The clutch separation mechanism includes a clutch master cylinder, and the clutch master cylinder includes a cylinder body with a piston chamber and a piston located in the piston chamber. The piston cavity on one side of the piston axis is a hydraulic cavity, and the other side of the piston is connected to the piston rod, which is connected to the clutch pedal. The hydraulic chamber can be filled with hydraulic oil, the cylinder body is provided with a first oil delivery part communicating with the hydraulic chamber, and the hydraulic chamber is connected with the hydraulic separation system through the first oil delivery part. [0003] When the clutch pedal is stepped on, the piston rod can drive the piston to move into the hydraulic cavity, and squeeze the hydraulic oil from the first ...

Claims

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Application Information

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IPC IPC(8): F16D25/08F16D25/12
CPCF16D25/08F16D25/12F16D2025/081
Inventor 刘向东
Owner SCHAEFFLER TECH AG & CO KG