Split system full-funtion valve system for heavy duty semi-trail

Details Split system full-funtion valve system for heavy duty semi-trail Split system full-funtion valve system for heavy duty semi-trail

1993-11-09

1995-06-20

Oberleitner, Robert J.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

303 69, 303 80, B60T 1552

Patent

active

054255716

ABSTRACT:
A full function brake valve for a semi-trailer is contained within a single housing and provides ports for receiving supply air and control air, and for delivering and receiving air from reservoirs, service brakes and spring brakes, and delivering air to an exhaust. The internal valves include a reservoir check valve and a relay valve to respectively pressurize a reservoir and to deliver supply air to service brakes. A secondary reservoir is supplied via a secondary reservoir check valve and a secondary reservoir outlet in the full function valve, or in a secondary relay valve, and is controlled by a secondary relay valve module to provide a redundant braking system for additional safety.

REFERENCES:
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patent: 4080004 (1978-03-01), Ury
patent: 4163585 (1979-08-01), Ury
patent: 4182535 (1980-01-01), Fannin
patent: 4226482 (1980-10-01), Stable et al.
patent: 4472001 (1984-09-01), Fannin
patent: 4593954 (1986-06-01), Campanini
patent: 4915456 (1990-04-01), Gross et al.
patent: 5061015 (1991-10-01), Cramer et al.
patent: 5236250 (1993-08-01), Moody et al.
patent: 5322353 (1994-06-01), Wallestad

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