Air brake valve for locomotive

A technology for air brake valves and locomotives, applied in the direction of pneumatic brakes, brakes, brake components, etc., can solve the problems of high maintenance and repair costs, simple and scattered functions of air brake valves, different control pressures, etc., and achieve simple structure and reduce Labor intensity, the effect of saving compressed air

Active Publication Date: 2016-03-09
CHINA ACADEMY OF RAILWAY SCI CORP LTD +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an air brake valve for locomotives, which solves the problems of simple and scattered functions of existing air brake valves and high maintenance and repair costs. Requirements for Different Control Pressures of Locomotive Brake Cylinders in Mode Braking State

Method used

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  • Air brake valve for locomotive

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Embodiment Construction

[0021] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0022] Such as figure 1 As shown, the locomotive air brake valve 100 provided by the present invention includes an action valve (its function is to generate the brake cylinder control pressure according to the train pipe pressure change), the action valve and the train pipe air circuit 9, the auxiliary air cylinder air circuit 8 connection, the function valve is also connected with the first port 21 of a two-way valve 2, the two-way valve 2 is also provided with a second port 22 and a two-way valve outlet 23, and the second port 22 is connected through a two-position three-way reversing valve 3 There is an emergency pressure regulating valve 4 (which can adjust the gas pressure transmitted by the main air passage 7 during emergen...

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Abstract

The invention provides an air brake valve for a locomotive. The air brake valve comprises an operating valve which is connected with a train pipe air channel and an auxiliary air cylinder air channel; the operating valve is further connected with a first port of a two-way valve; the two-way valve is further provided with a second port and a two-way valve outlet; the second port is connected with an emergency pressure regulating valve through a two-position three-way reversing valve; the emergency pressure regulating valve communicates with a main air channel; a first control valve port communicating with the train pipe air channel is arranged at one end of the two-position three-way reversing valve; the two-way valve outlet is connected with a mode switching loop capable of communicating with a brake cylinder air channel. The air brake valve for the locomotive has output pressure regulation and selection functions, and is capable of solving the problems of simple and decentralized functions and high maintenance and repair costs of an existing air brake valve, and meeting the requirements of relief and different control pressure of a locomotive brake cylinder in service braking, emergency braking and dead-head mode braking states in an integration way.

Description

technical field [0001] The invention relates to the technical field of braking of rail transit locomotives, in particular to an air brake valve for locomotives with output pressure adjustment and selection functions. Background technique [0002] At present, the braking system of railway locomotives requires different brake cylinder pressure (or brake cylinder control pressure) outputs when in use, so that it can The required brake pressure is different, so as an air brake valve in the brake system, it must be guaranteed to meet the basic output requirements of the above-mentioned brake cylinder pressure (or brake cylinder control pressure). [0003] At present, the most widely used locomotive braking systems are CCBⅡ brakes, EUROTROL brakes, JZ-7 air brakes, DK-1 electric control motors and DK-2 brakes, which are equipped with DB air brakes respectively. Valve, SW4 distribution valve, F7 air brake valve, 109 distribution valve and 109 modified distribution valve, the above...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T15/04B61H11/10
CPCB60T15/048B61H11/10
Inventor 林晖池海
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD
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