Aircraft hydraulic anti-skid braking pressure supply device

A technology of anti-skid brakes and aircraft hydraulics, applied in the field of aircraft hydraulics, can solve problems such as inability to adjust brake pressure, tire blowouts, and long idling time of hydraulic pumps.

Inactive Publication Date: 2012-05-09
HARBIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Long idling time of the hydraulic pump: When not braking, the hydraulic pump is also in an idling state, which affects the efficiency of the engine and the life of the hydraulic pump
[0005] Inability to adjust brake pressure, which could result in a flat tire

Method used

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  • Aircraft hydraulic anti-skid braking pressure supply device
  • Aircraft hydraulic anti-skid braking pressure supply device

Examples

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Embodiment Construction

[0012] An aircraft hydraulic anti-skid brake pressure supply device is characterized in that it includes a brake pressure accumulator 7, a pressure switch 12, an electric pump 2, a charging solenoid valve 5, an anti-skid brake valve 8, a brake pressure sensor 9, and a pressure supply pressure sensor 11 , pressure relay 13, pressure supply relief valve 14, pressure relief valve 3, check valve 6 and oil filter 4, speed sensor and control box 15;

[0013] One end of the electric pump 2 is connected to the oil tank 1, and the other end is connected to one end of the oil filter 4 and the pressure relief valve 3, and the other end of the oil filter 4 is connected to the inlet of the charging solenoid valve 5, and the charging solenoid valve 5 The two outlets are respectively connected to the oil filter 4 and one end of the check valve 6, the other end of the check valve 6 is connected to the brake accumulator 7, the brake accumulator 7 is connected to the pressure relay 13, the press...

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Abstract

The invention belongs to the aircraft hydraulic technology and especially relates to an aircraft hydraulic anti-skid braking pressure supply device, which contains a baking pressure reservoir (7), a pressure switch (12), an electric pump (2), a pressurizing solenoid valve (5), an antiskid braking valve (8), braking pressure transducer (9), a pressure supply pressure transducer (11), a pressure relay (13), a pressure supply overflow valve (14), a pressurizing overflow valve (3), a non-return valve (6), an oil filter (4), a speed transmitter and a control box (15). According to the invention, the pressure reservoir is used as a pressure source to realize braking; the pressurizing control pressure switch controls the electric pump and the brake pressurizing solenoid valve to pressurize the pressure reservoir and guarantee there is enough pressure in the pressure reservoir for realizing the brake function; the pressure supply pressure transducer and the braking pressure transducer are installed to respectively detect the pressure-supply pressure and the braking pressure so as to ensure a driver understands real-time information of the braking device; and the pressure relay on the braking device has a low-pressure alarm function. The installation position of the invention is not limited.

Description

technical field [0001] The invention belongs to aircraft hydraulic technology, in particular to an aircraft hydraulic anti-skid brake pressure supply device. Background technique [0002] In the existing aircraft hydraulic brake pressure supply device, the hydraulic pump is generally used to directly supply pressure to the brake disc. The work will affect the life of the hydraulic pump, and the brake pressure cannot be controlled simply and accurately. When the brake pressure is too high, the tire will blow out. This approach has 3 disadvantages: [0003] The installation position is limited: the hydraulic pump shaft must be connected to the engine shaft, there is no choice for the position of the hydraulic pump, and the connection process between the hydraulic pump shaft and the engine shaft requires high requirements. [0004] Long idling time of the hydraulic pump: When not braking, the hydraulic pump is also in an idling state, which affects the efficiency of the engin...

Claims

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Application Information

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IPC IPC(8): B64C25/42
Inventor 谷峰杜荃项滨东刘春艳张卓然朱博王洪志杨晓亮
Owner HARBIN
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