Non-master pump non-hydraulic oil type automobile clutch booster

Abstract

The invention relates to a non-master pump non-hydraulic oil type automobile clutch booster, mainly comprising a slider, a control mechanism, a soft stretching bar with a loose core function, a lever mechanism, a casing, a cylinder barrel, a big piston rubber cup lubricant anti-friction ring, a big piston, a mandril and the like. The clutch booster cancels the oil cavity, the master pump, the hydraulic oil and the matched oil tank and the high pressure fuel pipe in a traditional automatable clutch booster, thus eliminating many fault points in the automobile clutch booster, facilitating installation and regulation greatly and lowering cost of the whole automobile. Anti-friction rings with lubricating grease are arranged at the positions in the booster which are adjacent to each rubber cup.

Description

technical field [0001] The invention belongs to the field of auto parts, and relates to a master cylinder-free and hydraulic oil-free automobile clutch booster. Background technique [0002] At present, the clutch booster used in automobiles at home and abroad is provided by the master cylinder, and relies on the hydraulic oil tank and the hydraulic oil in the high-pressure oil pipe as the medium to transmit the pressure provided by the pedal to the air valve switch on the clutch booster. , making the compressed air enter the cylinder to do work. Due to the high pressure in each oil chamber and oil circuit during use, the related seals are easily damaged, which often leads to failure of the master cylinder or clutch booster. In addition, the lubricating grease content in the interior of the original clutch booster and the adjacent parts of the cup is less, so that it often works in a dry grinding state, and also greatly reduces the service life of the clutch booster. [00...

AI Technical Summary

Problems solved by technology

[0013] 1. The pressure of the hydraulic oil is high, and the related seals are slightly worn or the material of the aluminum shell is slightly loose, which will cause a small amount of gas to enter the oil chamber and cause the master cylinder or clutch booster to fail

[0014] 2. The inner walls of the oil chambers of the master cylinder and clutch booster have high precision requirements, and the processing is difficult and costly

[0015] 3. Most of the small pistons are sealed by the outer circular lip of the cup, which has a large contact area with the inner wall of the cavity where it is located. While doing work, the upper cup is squeezed by oil pressure and the lower cup is squeezed by air pressure. A certain resistance affects the movement of the small piston

At the same time, when a small amount of compressed air enters the cylinder, the large piston will drive the large piston rod to move downward, making the volume of the large oil chamber larger and the pressure of the small oil chamber weakened, which will also affect the downward movement of the small piston. acting

In this way, the separation gap between the valve plate and the valve seat is often small, and the compressed air cannot fully enter the cylinder barrel, which is manifested by the powerlessness of the booster.

[0016] 4. The upper and lower cups of the large piston rod have to withstand the double extrusion of air pressure and oil pressure while the large piston is doing work, resulting in a certain resistance. This resistance will also affect the stroke of the large piston and cause the clutch to be incompletely separated.

[0017] 5. There is no lubricating device in each part of the clutch booster adjacent to the cup, so that it often works in a dry grinding state, which also greatly reduces the service life of the clutch booster

[0018] 6. Complex structure, troublesome installation and adjustment

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