Double chamber parallel electromagnetic control secondary booster automobile brake general pump
An electromagnetic control and secondary boosting technology, applied in the field of automobile brake master cylinder, can solve the problems of major accidents, different requirements of brake performance, and different pipeline connection distances, so as to improve safety and reduce accidents
Inactive Publication Date: 2009-03-18
CHANGTONG TECH
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Problems solved by technology
[0003] First, because the existing brake master cylinder is not the same as the pipe connection distance of the front and rear wheels, the two valves in the brake master cylinder are opened at the same time, but the response speed of the brake actuators near the wheels is not the same. Generally, the front wheels brake first. , the rear brakes on the rear wheels will cause major accidents in severe cases
[0004] The second is that the function of the existing brake master cylinder is relatively single. After stepping on the brake pedal, the brake master cylinder has only one response, but the actual situation is that the car has different requirements for the performance of the brake under different loads and different road conditions. ; When the vehicle is heavy, the braking force needs to be large, and when it is empty, the braking force needs to be small
[0005] Chinese patent 99208974 proposes a kind of automobile brake valve, and a kind of automobile brake valve proposed by Chinese patent 200420061352 is to adjust the opening of the valve, which improves the braking force and braking effect to a certain extent, but does not Did not fundamentally solve the above problems
Method used
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[0023] see figure 1 , figure 2 , image 3 , Figure 4 , in the figure 1-upper part of pressure rod assembly, 2-upper dustproof part, 3-spring, 4-lower part of pressure rod assembly, 5-upper piston, 6-pressurized air chamber, 7-upper pump body, 8- Balance lever, 9-top seat, 10-lower pump body, 11-brake air outlet, 12-brake air inlet, 13-plug, 14-lower dust-proof parts, 15-seal ring, 16-return spring, 17 - valve, 18- lower guide rod of lower piston, 19- return spring, 20- sealing ring, 21- lower piston, 22- ejector rod, 23- pressurizing air hole, 24- sealing ring, 27- surge pressure chamber,
[0024] In the figure, the double-chamber parallel electromagnetic control secondary booster brake master cylinder includes an upper pump body 7 and a lower pump body 10. The lower pump body 10 includes basically the same two parts, and there is an upper piston 5 in the upper pump body 7. assembly, and the balance lever 8 installed on the lower part of the upper piston 5 assembly, the ...
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The electromagnetically controlled secondarily supercharging automobile braking general pump with two parallel cavities includes one upper pump body and one lower pump body. The upper pump body has one upper piston assembly and one balance lever; and the lower pump body includes two basically identical parts below the upper pump body and with brake valve assembly brake air inlet and outlet holes each. The upper piston assembly contains upper piston and sealing structure, and one supercharging air chamber is formed between the upper piston and the upper pump body and communicated via one solenoid valve to the brake air outlet hole, with the solenoid valve being connected to the control circuit. The present invention has both forced braking and flexible braking functions for fitting different road condition and vehicle condition and simultaneous front and rear wheel braking with raised safety.
Description
1. Technical field [0001] The invention relates to an automobile brake master cylinder, in particular to a dual-chamber parallel electromagnetic control secondary supercharged automobile brake master cylinder. 2. Background technology [0002] In the existing dual-chamber parallel car brake master cylinder, the balance lever connected to the brake pedal at the upper part simultaneously presses down the front and rear brake valve assemblies to realize the simultaneous braking of the front and rear wheels. This braking method has its shortcomings. [0003] First, due to the difference between the existing brake master cylinder and the pipeline connection distance between the front and rear wheels, the two valves in the brake master cylinder are opened at the same time, but the response speed of the brake actuators near the wheels is different. Generally, the front wheel brakes first. , the rear wheel brakes, which will cause major accidents in severe cases. [0004] Second, b...
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IPC IPC(8): B60T11/16
Inventor 田青锋
Owner CHANGTONG TECH
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