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Oil Circuit Structure of Hydraulic Retarder and Its Method of Reducing No-load Loss

A hydraulic retarder and oil circuit technology, applied in the direction of hydraulic resistance brakes, brake components, brake types, etc., can solve the problem of high residual torque of the hydraulic retarder, improve overall performance, reduce weight, and improve use. performance effect

Active Publication Date: 2017-05-03
深圳市特尔佳汽车科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the objectives of the present invention is to provide an oil circuit structure of a hydraulic retarder, which solves the problem of high residual torque when the hydraulic retarder is not working, and reduces its no-load loss

Method used

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  • Oil Circuit Structure of Hydraulic Retarder and Its Method of Reducing No-load Loss
  • Oil Circuit Structure of Hydraulic Retarder and Its Method of Reducing No-load Loss
  • Oil Circuit Structure of Hydraulic Retarder and Its Method of Reducing No-load Loss

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Effect test

Embodiment 1

[0037] Example 1: figure 2 , image 3 and Figure 5 to Figure 12 The first embodiment of the present invention is shown, the oil passage structure of a hydraulic retarder of the present invention, which includes the oil passage structure formed by the sequential communication of the working chamber 14, the heat exchanger 11 and the oil tank 51, in which A bypass valve 2 is provided on the oil passage between the bypass port 13 of the working chamber 14 and the oil inlet 53 .

[0038] The bypass valve 2 includes an interlocking valve seat 24 and a valve cover 22, a valve core 23 is provided in a valve chamber 132 of the valve seat 24, and a bypass valve oil outlet hole 1321 is provided at one end of the valve chamber 132. The other end of the valve cavity 132 is provided with a sealing surface, and the sealing end 231 of the valve core 23 corresponds to the sealing surface. A spring 6 is arranged between at least one end of the valve cavity 132 and the sealing end 231 of the...

Embodiment 2

[0054] Example 2: figure 2 , Figure 4 Shows the second embodiment of the present invention, the oil passage structure of a hydraulic retarder of the present invention, which includes the oil passage structure formed by the sequential communication of the working chamber 14, the heat exchanger 11 and the oil tank 51, in which A bypass valve 2 is provided on the oil passage between the bypass port 13 of the working chamber 14 and the oil inlet 53 .

[0055] The bypass valve 2 includes an interlocking valve seat 24 and a valve cover 22, a valve core 23 is provided in a valve chamber 132 of the valve seat 24, and a bypass valve oil outlet hole 1321 is provided at one end of the valve chamber 132. The other end of the valve cavity 132 is provided with a sealing surface, and the sealing end 231 of the valve core 23 corresponds to the sealing surface. A spring 6 is arranged between at least one end of the valve cavity 132 and the sealing end 231 of the valve core 23. In this embod...

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Abstract

The invention discloses an oil way structure of a hydraulic retarder. The oil way structure of the hydraulic retarder comprises a work cavity, a heat exchanger and the oil way structure formed by oil tanks communicated in sequence. A bypass valve is arranged on an oil way between an oil feeding port and a bypass port of the work cavity. The invention further discloses a method for reducing the no-load loss of the oil way structure of the hydraulic retarder. (1) When the hydraulic retarder is in the no-load state, air is stored in the work cavity, the bypass valve is opened all the time, the air in the work cavity is driven by a rotor impeller to flow through the bypass valve and the oil feeding port of the work cavity and flow back to the work cavity, so that a small circulated air stream is formed, the function of residual torque reduction is achieved, the no-load loss of the hydraulic retarder is reduced, the use cost is reduced, and the use performance of the hydraulic retarder is improved; (2) when the hydraulic retarder is in work, the bypass valve is closed, a bypass valve oil way is disconnected so that the torque of the hydraulic retarder can be greatly improved; (3) the oil way structure of the hydraulic retarder is simplified and the overall performance of the hydraulic retarder is improved.

Description

technical field [0001] The invention relates to a hydraulic retarder, in particular to an oil passage structure of a hydraulic retarder and a method for reducing no-load loss. Background technique [0002] The hydraulic retarder is an auxiliary braking device for motor vehicles. It is mainly composed of a stator impeller, a rotor impeller, a retarder housing, a working chamber, a heat exchanger and an oil tank. It is essentially a rotary damping device. , using the rotor impeller to drive the working fluid to impact with the stator impeller to generate reverse vortex torque, which converts the kinetic energy of the vehicle into the heat energy of the working fluid, thereby decelerating the vehicle. Driven by the rotor impeller, the working fluid in the working chamber enters the heat exchanger through the oil outlet of the retarder for oil-water heat exchange, and then flows back to the working chamber from the oil inlet, so that the heat energy of the working fluid is coole...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D57/02F16D65/00
Inventor 文光安闻维维肖建
Owner 深圳市特尔佳汽车科技有限公司
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