Multi-chamber brake actuator

Details Multi-chamber brake actuator Multi-chamber brake actuator

1992-07-20

1993-10-26

Oberleitner, Robert J.

Fluid-pressure and analogous brake systems

Multiple fluid-receiving devices

Multiple motors

303 9, 303 976, 188170, B60T 1344

Patent

active

052559610

ABSTRACT:
A brake system (2) uses a multi chamber brake actuator (6), including a service brake actuator (8) and a spring brake actuator (80), coupled to an air brake by a slack adjustor (122). The spring brake actuator is configured to pull on, instead push on, the push rod (120). In some embodiments (6b, 6c) the spring brake actuator applies a lower level parking brake force or a higher level emergency brake force.

REFERENCES:
patent: Re32885 (1989-03-01), Graham
patent: 3065997 (1962-11-01), Frankhouser et al.
patent: 3508469 (1970-04-01), Williams
patent: 3712181 (1973-01-01), Swander, Jr. et al.
patent: 3729070 (1973-04-01), LeMarchand
patent: 3895695 (1975-07-01), Hunter
patent: 4785718 (1988-11-01), Hata et al.

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