Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1975-03-06
1976-04-27
Blix, Trygve M.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
188 3R, 303 68, B60T 1300
Patent
active
039530795
ABSTRACT:
The service and emergency braking system for use on articulated vehicles having service brakes actuated by air pressure and having emergency brakes held in a released condition by air pressure. The system includes valving which is responsive to a pressure differential between the fluid pressure level in the service line connecting the portions of the articulated vehicle and a reference pressure, so that the emergency brake control is vented during a service brake actuation to permit the emergency brakes to effect a brake application when the pressure of the service line drops below the reference pressure by a predetermined amount, thereby providing braking on all portions of the vehicle in an emergency braking situation when the service brake line interconnecting the portions of the vehicle has been broken or has been left disconnected. The reference pressure is generally at the outlet of a regulating valve having an inlet connected to the outlet of the conventional operator-actuated service brake control valve. The regulating valve is provided with valve members between the inlet and outlet thereof which delays fluid communication until the pressure at the inlet attains a predetermined level whereupon the valve opens to permit communication between the inlet and outlet through a flow restricting orifice. Upon release of the brakes, the regulating valve opens to permit substantially uninhibited fluid communication between the inlet and the outlet.
REFERENCES:
patent: 3003822 (1961-10-01), McCarthy
patent: 3228730 (1966-01-01), Schubert
patent: 3241888 (1966-03-01), Ternent
patent: 3272567 (1966-09-01), Vielmo
patent: 3294455 (1966-12-01), Valentine
patent: 3504946 (1970-04-01), Valentine et al.
patent: R25969 (1966-03-01), Valentine
Bartholomew Roy E.
Sebo Milan J.
Antonis William N.
Blix Trygve M.
Butler Douglas C.
Decker Ken C.
The Bendix Corporation
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