Load-sensitive hydraulic system and deicing vehicle

Abstract

The invention discloses a load-sensitive hydraulic system and a deicing vehicle. The load-sensitive hydraulic system comprises a first main pump, an oil tank, a first oil way, a first hydraulic control valve, a first execution element, a second oil way and a feedback unit, wherein, the first hydraulic control valve comprises a first state and a second state, the first execution element runs, the first hydraulic control valve is in the first state, and hydraulic oil in the first oil way is decompressed to second preset pressure through the first hydraulic control valve and flows out from a third port; the first execution element stops running, the first hydraulic control valve is in a second state, a first port and a second port of the first hydraulic control valve can communicate with each other to realize overflow, and hydraulic oil in a third port is kept at the second preset pressure; and the feedback unit can obtain the load in the second oil way and feed the load back to the first main pump. According to the load-sensitive hydraulic system and the deicing vehicle, pressure building can be achieved, and heating can be improved.

Description

Technical field [0001] The present application relates to hydraulic control technology, and more particularly to a load-sensitive hydraulic system and an ice-free car. Background technique [0002] Under ice, ice, snow, frost caused the direct impact on the operation safety of the aircraft, which will make the outer surface of the aircraft, increase the aircraft weight, limit the range of the aircraft manipulation surface, resulting in the meter error, causing serious time The aircraft stall increases and instantaneously, so that the flight performance of the aircraft has declined, especially when the aircraft rises, it is difficult to control the flight attitude, causing a serious problem. Therefore, in order to protect normal shipping and flight safety, the frost snow on the plane must be removed, and the ice-free ice car with ice is used in the airport has a variety of functions such as ice, cleaning, and spraying antiboic acid. [0003] The self-contained cleaning is differen...

AI Technical Summary

Problems solved by technology

However, because the constant pressure system uses a throttle valve for speed regulation, it will produce a large pressure loss and consume a lot of energy; The heat is very serious, which affects the heat balance effect of the whole vehicle and the life of hydraulic components

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