Air pressure booster assembly based on feedback disc structure

A technology of feedback disc and booster, which is applied in the direction of brakes, transportation and packaging, and brake transmission devices. It can solve the problems of brake pedal follow-up, poor braking feeling, and weak boosting effect, and achieve increased braking capacity. Large, good braking effect, and the effect of reducing the cost of the whole vehicle

Pending Publication Date: 2018-04-13
CHINA FIRST AUTOMOBILE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the technical problems that the boosting effect of the vacuum booster assembly is weak, and the existing pneumatic booster using high-pressure air as the booster brakes has poor brake pedal follow-up and braking feeling, a feedback-based Pneumatic booster assembly with disc structure

Method used

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  • Air pressure booster assembly based on feedback disc structure
  • Air pressure booster assembly based on feedback disc structure
  • Air pressure booster assembly based on feedback disc structure

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Embodiment Construction

[0030] The specific embodiments of the present invention will be described in detail below with reference to the drawings.

[0031] The pneumatic booster assembly based on the feedback disc structure is mainly composed of input force push rod 1, intake seat 2, guide sleeve 4, valve stem 5, valve stem seat 6, valve return spring 7, valve 9, rear housing 10, Lock block 11, guide sleeve return spring 12, booster piston seal 14, booster piston guide sleeve 15, booster piston 16, pressure block 18, feedback disc 19, front housing 20, reinforcement plate 21, exhaust port 22, output The force push rod 23, the piston return spring 24, the piston return spring seat 25, the output push rod seat 26, the valve seat guide sleeve 28, the dust cover 29, the input force push rod anti-drop mechanism 30 and the sealing ring are composed.

[0032] The air inlet seat 2 has a high-pressure air inlet, and the air inlet seat 2 is threadedly connected with the guide sleeve 4, and the sealing of the connec...

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Abstract

The invention relates to a pneumatic booster assembly based on a feedback disc structure, which uses high-pressure air as a power source to improve the braking capacity of a hydraulic braking system. When braking, the high-pressure air enters the booster chamber A of the pneumatic booster assembly through the high-pressure air inlet and the intake channel to achieve power boosting. The structure of the feedback disc makes braking with good follow-up and controllability. When the maximum servo force is reached The input and output forces of the pneumatic booster will increase by the same amount; when the brake is cancelled, as the input force continues to decrease, the valve is closed, the chambers A and B of the pneumatic booster are connected, and the high-pressure air passes through the channel, the booster piston and The gap between the output push rod seats, the exhaust groove of the output push rod seat, and the exhaust hole on the piston return spring seat flow into the B chamber from the A chamber and discharge into the atmosphere. The invention can improve the braking performance. The invention is adopted for the hydraulic braking light trucks of the National V emission standard, and can use the same high-pressure gas source as the urea supply system, save the part of the vacuum servo system, and reduce the cost of the whole vehicle.

Description

Technical field [0001] The invention relates to a pneumatic booster assembly based on a feedback disc structure, which is suitable for hydraulic braking systems of light trucks and medium-sized passenger cars. The assembly uses high-pressure air as a boost source to improve the braking capability of the hydraulic braking system. Background technique [0002] The hydraulic brake system of traditional light trucks mostly uses vacuum booster assembly. Because the vacuum booster assembly is restricted by structure, size and atmospheric pressure, it can only be applied to light trucks with small tonnage. Five emission standards, light-duty trucks need to be equipped with a high-pressure gas source to drive the urea supply system. Therefore, the use of pneumatic boosters to replace vacuum boosters has been a major issue in the improvement of the hydraulic brake system of light trucks. Summary of the invention [0003] The present invention solves the technical problems of the weak boos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/24
CPCB60T13/24
Inventor 李同占封万程
Owner CHINA FIRST AUTOMOBILE
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