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Automobile hydraulic booster

A hydraulic brake and booster technology, which is applied in the field of automotive hydraulic brake booster devices, can solve problems such as high cost, many production conditions, and increased volume, and achieve high work efficiency, high practical value, and reasonable structure. Effect

Inactive Publication Date: 2008-07-23
张文建
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Like this, it is bound to cause the volume to increase, and the space for installing brake components in the car is very limited.
Therefore, the assist ratio of the vacuum booster is very small, and the maximum can only reach about 7.
[0004] At the same time, the manufacturing process of the vacuum booster is very complicated. The parts of its products include stamping parts, machined parts, plastic parts, rubber parts, etc. The production conditions of the products are demanding and the cost is high.

Method used

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  • Automobile hydraulic booster
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Embodiment Construction

[0022] As shown in Figures 1 and 2, the automobile hydraulic brake booster includes a body 1, a booster piston 2, a piston rod 3, a contactor 7, an electric pump 6 and other components. There is an inner cavity in the body 1, and the booster piston 2 is located in the inner cavity.

[0023] The automobile hydraulic brake booster is mounted on the brake master cylinder of the automobile. A brake cylinder 8 is arranged on the brake master cylinder, and a brake piston 81 is arranged in the brake cylinder 8 . The above-mentioned main body 1 is fixedly connected with the brake cylinder 8 , and the booster piston 2 presses against the outer end of the brake piston 81 .

[0024] In this embodiment, the booster piston 2 is composed of three parts: the front part 21, the middle part and the rear part 23, wherein the front part 21 is cylindrical, the middle part is a disc-shaped shoulder 22, and the rear part 23 is round. cylindrical.

[0025] The edge of the disc-shaped shoulder 22 ...

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Abstract

The present invention relates to automobile technology. The hydraulic automobile booster mounted in the total automobile brake pump includes one main body; one boosting piston, which has one disc shoulder in the middle part, cylindrical back part forming one regulating cavity together with piston cap, piston rod inside the regulating cavity and oil hole opening-closing unit in front end of the piston rod; one electric pump beside the main body and connected to one oil path; one contactor and one non-return valve set on the oil inlet hole in the main body. The booster may have a boosting ratio as high as 60.

Description

technical field [0001] The invention belongs to the technical field of automobiles, in particular to a booster device for hydraulic brakes of automobiles. Background technique [0002] Auto booster is a key component of automobile safety. In the braking system of the car, in order to reduce the driver's work intensity, it is necessary to connect a booster device to reduce the driver's pedal force. According to relevant regulations, the pedal force of a car is between 200 and 250N, and that of a truck is between 300 and 450N. [0003] At present, most of the boosters used in automobiles use vacuum boosters. Such as the "vacuum brake booster for motor vehicles" provided by Chinese patent 901022551, the "vacuum booster with master cylinder" provided by Chinese patent 98212905.X, the "variable power ratio vacuum booster" provided by Chinese patent 022181415, etc. Wait. In the variable power ratio vacuum booster, it mainly includes a housing, a piston, a control valve, a push...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T13/12F16D57/00
Inventor 张文建
Owner 张文建
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