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Do you Know Clutch Master Pump?

Oct. 09, 2021

When the driver steps on the clutch pedal, the push rod pushes the master cylinder piston to increase the oil pressure and enters the wheel cylinder through the hose, forcing the wheel cylinder lever to push the release fork and push the release bearing forward; when the driver releases the clutch pedal. The hydraulic pressure is released, the release fork is gradually returned to its original position under the action of the return spring, and the clutch is in the engaged state again.

There is a radial oblong through hole in the middle of the piston of the clutch master cylinder. The direction-limiting screw passes through the oblong hole of the piston to prevent the piston from rotating. In the piston hole.

When the clutch pedal is not stepped on, there is a gap between the master cylinder push rod and the master cylinder piston. Due to the limit screw restricting the oil inlet valve, there is a small gap between the oil inlet valve and the piston. In this way, the oil storage cylinder communicates with the left cavity of the master pump through the pipe joint and the oil passage, the oil inlet valve and the oil inlet valve. When the clutch pedal is stepped on, the piston moves to the left, and the oil inlet valve moves to the right relative to the piston under the action of the return spring, eliminating the gap between the oil inlet valve and the piston.

Clutch Master Pump

Clutch Master Pump

Continue to depress the clutch pedal, the oil pressure in the left cavity of the master cylinder will increase, and the brake fluid in the left cavity of the master cylinder will enter the booster through the oil pipe, the booster works, and the clutch is disengaged.

When the clutch pedal is released, the piston moves to the right quickly under the action of the spring in the same position. Because the brake fluid has a certain resistance in the pipeline, it flows back to the master cylinder at a slower speed, so a certain amount is formed in the left cavity of the master cylinder. Vacuum degree, the oil inlet valve moves to the left under the action of the pressure difference between the left and right oil chambers of the piston, and a small amount of brake fluid in the oil storage cylinder flows into the left cavity of the master cylinder through the oil inlet valve to make up for the vacuum. When the original brake fluid from the master cylinder into the booster flows back to the master cylinder, excess brake fluid appears in the left cavity of the master cylinder, and this excess brake fluid will flow back to the oil reservoir through the oil inlet valve. Our company has Clutch Master Pump on sale, welcome to contact us.


Shindary Automotive Parts Co., Ltd.

  • Add.: Rm.11-12, 4th Tower, Daya Jinkai Int'l Plaza, No.1230, Jinkai Ave., New North Zone, Chongqing, China.
  • Tel.: +86 23 6305 1623
  • Fax: +86 23 6320 5611
  • E-mail: overseas@shindary.com
  • Skype: sararoman521
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