CA2558723A1 - Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake system - Google Patents

Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake system Download PDF

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Publication number
CA2558723A1
CA2558723A1 CA002558723A CA2558723A CA2558723A1 CA 2558723 A1 CA2558723 A1 CA 2558723A1 CA 002558723 A CA002558723 A CA 002558723A CA 2558723 A CA2558723 A CA 2558723A CA 2558723 A1 CA2558723 A1 CA 2558723A1
Authority
CA
Canada
Prior art keywords
pressure release
brake pipe
freight train
pneumatically controlled
brake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002558723A
Other languages
French (fr)
Other versions
CA2558723C (en
Inventor
James E. Hart
Thomas Engle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westinghouse Air Brake Technologies Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority claimed from CA002351915A external-priority patent/CA2351915C/en
Publication of CA2558723A1 publication Critical patent/CA2558723A1/en
Application granted granted Critical
Publication of CA2558723C publication Critical patent/CA2558723C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Braking Systems And Boosters (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

A graduated release valve for a rail vehicle having a pneumatic control valve, a brake pipe, at least one reservoir charged from the brake pipe, and a brake cylinder device, includes a metering valve communicating with the brake cylinder device and controlling the exhaust of pressure therefrom responsive generally to increases in brake pipe pressure. The metering valve communicates with a relatively small volume charged from the at least one reservoir, the volume being communicated with the brake pipe when the pneumatic control valve triggers a service accelerated release.
CA002558723A 2000-06-28 2001-06-28 Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake system Expired - Fee Related CA2558723C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US21451100P 2000-06-28 2000-06-28
US60/214,511 2000-06-28
CA002351915A CA2351915C (en) 2000-06-28 2001-06-28 Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002351915A Division CA2351915C (en) 2000-06-28 2001-06-28 Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake system

Publications (2)

Publication Number Publication Date
CA2558723A1 true CA2558723A1 (en) 2001-12-28
CA2558723C CA2558723C (en) 2008-02-19

Family

ID=37114272

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002558723A Expired - Fee Related CA2558723C (en) 2000-06-28 2001-06-28 Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake system
CA002558795A Expired - Fee Related CA2558795C (en) 2000-06-28 2001-06-28 Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake system

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002558795A Expired - Fee Related CA2558795C (en) 2000-06-28 2001-06-28 Apparatus and method for pneumatically controlled graduated brake pressure release for freight train brake system

Country Status (1)

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CA (2) CA2558723C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022110513A1 (en) * 2020-11-30 2022-06-02 中车山东机车车辆有限公司 Vehicle brake control system, vehicle and train

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022110513A1 (en) * 2020-11-30 2022-06-02 中车山东机车车辆有限公司 Vehicle brake control system, vehicle and train
GB2615845A (en) * 2020-11-30 2023-08-23 Crrc Shandong Co Ltd Vehicle brake control system, vehicle and train
GB2615845B (en) * 2020-11-30 2024-03-20 Crrc Shandong Co Ltd Vehicle brake control system, vehicle and train

Also Published As

Publication number Publication date
CA2558795A1 (en) 2001-12-28
CA2558723C (en) 2008-02-19
CA2558795C (en) 2007-04-17

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20200831