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Railroad control valve

A control valve, railway technology, applied in the direction of control valve and bleed valve, brake, valve device, etc.

Active Publication Date: 2013-08-28
WABTEC HLDG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main operational difference between the Model 120 and the ABD and related AAR valves is that the emergency part only provides the breather valve function and still relies on the active part to move air from the reservoir to the brake cylinder

Method used

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  • Railroad control valve
  • Railroad control valve
  • Railroad control valve

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Embodiment Construction

[0074] For the purposes of the following description, the spatial orientation terms used shall relate to the embodiments referred to, as oriented in the drawings or as described in the detailed description below. It should be understood, however, that there are many alternative variations and embodiments to the embodiments described below. It should also be understood that the particular devices illustrated in the drawings and described herein are by way of example only and should not be considered limiting.

[0075] refer to Figure 1-17 , discloses an embodiment of a main body 10 for an active part of a railway control valve. The body 10 generally defines a piston passage 12 extending axially from a top 14 of the body 10 to a bottom 16 of the body 10 . The body 10 also defines a jump valve passage 18 , a restriction valve passage 20 and a service brake acceleration release (SAR) valve passage 22 each extending from the bottom 16 of the body in a direction toward the top 14...

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Abstract

A service portion of a rail control valve includes a body defining a piston passageway, an inshot valve passageway, and a service accelerated release valve passageway. An inshot valve is received by the inshot valve passageway of the body and a service accelerated release valve is received by the service accelerated release valve passageway.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 386,119, filed September 24, 2010, which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates generally to braking devices for railway vehicles, and more particularly to the active portion of a brake control valve. Background technique [0004] Chinese railroads have a standardized pneumatic air brake valve called "Model 120" which is similar in overall operation to American Association of Railroads (AAR) pneumatic air brake valves such as WABCO ABD , with pipe bracket, action part and emergency valve. The main operational difference between the Model 120 and the ABD and related AAR valves is that the emergency part only provides the breather valve function and still relies on the active part to move air from the reservoir to the brake cylinder. Furthermore, there is no difference in brake c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/00
CPCB60T15/021Y10T137/86485
Inventor G·M·斯奇J·B·斯科沃瑞斯M·S·普勒彻D·J·梅耶
Owner WABTEC HLDG CORP