Modulating valve assembly for railroad car brake cylinders

Details Modulating valve assembly for railroad car brake cylinders Modulating valve assembly for railroad car brake cylinders

1977-07-05

1978-06-06

Reger, Duane A.

Fluid-pressure and analogous brake systems

Charging

Outlet-pressure control

303 22R, B60T 1112

Patent

active

040933156

ABSTRACT:
A modulating valve for railroad car brake cylinders to adapt them for operation with composition brake shoes, in the form of an assembly comprising a bracket plate shaped for mounting between the brake cylinder pipe flange type fitting that connects the brake cylinder pipe to the brake cylinder and the cylinder head, and that is arranged for a three point securement to the cylinder head, and a modulating valve mounted on the bracket plate and in communication with the brake cylinder pipe and brake cylinder to limit the fluid pressures supplied to the brake cylinder so that composition brake shoes will deliver the proper brake applying force to the truck wheels without interferring with proper operation of existing brake control equipment. This invention relates to a modulating valve assembly for use with railroad car pneumatic brake equipment, and more particularly, to a modulating valve assembly for application to the car brake cylinder to adapt the brake cylinder to deliver the amount of brake applying force to the truck wheels that is proper for the modern composition brake shoes.

REFERENCES:
patent: 2028404 (1936-01-01), Matrossoff
patent: 2034393 (1936-03-01), Hessian
patent: 3612621 (1971-10-01), Scott
patent: 3671086 (1972-06-01), Scott

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