Single-plunger clutch pump

Abstract

The invention relates to a single-plunger clutch pump which comprises a pump body, wherein an oil storage chamber is formed in the upper part of the pump body, a working chamber is formed in the lower part of the pump body, an oil inlet joint is mounted at the top of the pump body, a plunger is arranged at the right end of the working chamber, a screw plug provided with an oil tube joint is arranged at the left end of the working chamber, a spring is mounted between the screw plug and the plunger, and a plate-type oil supplementing valve assembly is mounted between the oil storage chamber and the working chamber and adopts a check valve. According to the single-plunger clutch pump, the plunger does not adopts a dual-seal structure, and the requirement for the sealing performance of the working chamber is reduced; when the plunger is pushed leftward, the pressure of the working chamber is increased, the sealing performance of the check valve is far better than the sealing effect by adopting a seal ring, and the sealing effect of the working chamber can be further improved; and with adoption of the matching mode of a valve core and a conoid helical compression spring, the valve core further has the characteristic of flexible deflection under shifting of the plunger while compressing a valve seat, and the function that the check valve are controlled to be opened and closed through left and right movement of the plunger is guaranteed.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a single plunger clutch pump. Background technique [0002] The clutch master cylinder is the part connected to the clutch pedal and connected to the clutch booster through the oil pipe. The function is to collect the pedal travel information and realize the separation of the clutch through the action of the booster. [0003] There is a radial oblong hole in the middle of the plunger of the clutch master cylinder, that is, the working chamber. The limit screw passes through the oblong hole of the plunger to prevent the plunger from rotating. Inserts through the straight hole in the plunger face into the plunger bore. [0004] When the clutch pedal is not stepped on, there is a gap between the push rod of the master cylinder and the plunger of the master cylinder. Due to the limit screw on the oil inlet valve, there is a small gap between the oil inlet valve and the plunger, ...

AI Technical Summary

Problems solved by technology

[0008] The patent application number ZL201320046883.0 discloses a clutch master cylinder assembly, which includes a cylinder and a plunger installed inside the cylinder. The plunger is double-sealed and divides the inner cavity of the cylinder into two parts. Partly, the double-seal structure has high requirements on the processing and assembly of the clutch master cylinder assembly, which is prone to oil leakage. Phenomenon

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