Hydrodynamic retarder

Abstract

The invention relates to a hydrodynamic retarder. The transmission shaft of the hydrodynamic retarder is in transmission connection with the shaft of a hydraulic pump through a clutch; the shaft of the hydraulic pump is in transmission connection with the working shaft of a hydraulic motor; the high-pressure oil pipe of the hydraulic pump connected with the oil inlet of the hydraulic motor; and when high-pressure oil is input through the oil inlet, the hydraulic motor can generate a counter acting force relative to the transmission direction of a transmission system. The hydrodynamic retarder is designed according to the working principles of the hydraulic pump and the hydraulic motor; and the hydraulic pump and the hydraulic motor are assembled together and connected through the shafts. During use, the hydraulic pump of the hydrodynamic retarder is driven to generate high-pressure oil by virtue of the kinetic energy of the transmission system, high-pressure oil enters the oil inlet of the hydraulic motor and then drives the hydraulic motor to generate a counter acting force relative to the transmission direction of the transmission system to achieve the purpose of deceleration; and no abrasion is caused to other systems. The hydrodynamic retarder has the advantages of no energy consumption, zero contamination, simple structure and good braking effect, and is applicable to various wheeled rolling equipment, including trains and airplanes, particularly braking systems in the automobile industry.

Description

technical field [0001] The invention relates to a braking device, in particular to a hydraulic retarder. Background technique [0002] When the vehicle goes downhill, it will generate a strong driving force, which will reduce the braking performance or even fail, thus causing accidents and causing casualties and property losses. In order to improve this situation, there are currently two kinds of retarders used in the automobile market. One is to convert the kinetic energy of the gearbox into heat energy for deceleration by generating damping in the turbine chamber with hydraulic oil. The retarder produced by this theory, The response is slow and the effect is poor. In the non-working driving state, it consumes 4% of the transmission power of the engine, the structure is complicated, and the production cost and maintenance cost are high. The other is the eddy current retarder, which uses the drive shaft to cut the magnetic lines of force to generate resistance and decelera...

AI Technical Summary

Problems solved by technology

It consumes 1% of the transmission power of the engine in the non-working state. It is heavy and inconvenient to install. The temperature is as high as 650°C when it is working. It is easy to burn the equipment and there is a fire hazard.

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