Dampened vehicle emergency brake valve

Details Dampened vehicle emergency brake valve Dampened vehicle emergency brake valve

2005-12-06

2005-12-06

Siconolfi, Robert A. (Department: 3683)

Fluid-pressure and analogous brake systems

Speed-controlled

Automatic braking including speed governor or hydraulic...

C244S111000, C137S596200

Reexamination Certificate

active

06971725

ABSTRACT:
A valve for controlling an emergency brake system on an aircraft. The valve has separate poppets for controlling the flow of fluid from a supply line to the brake cylinders and from the brake cylinders to a tank return line. The poppets act on each other. A dampening orifice restricts fluid flow around one of the poppets thereby limiting the rate at which that poppet opens and closes. An actuator applies an externally generated control force to the poppets to activate and de-active the emergency brake system.

REFERENCES:
patent: 2616641 (1952-11-01), Gagen
patent: 3504947 (1970-04-01), Valentine
patent: 3533661 (1970-10-01), Cruse
patent: 3617097 (1971-11-01), Grabb
patent: 3712685 (1973-01-01), Hoffman
patent: 3746401 (1973-07-01), Stearns
patent: 3778119 (1973-12-01), Kersting
patent: 3880473 (1975-04-01), Urban et al.
patent: 4120540 (1978-10-01), Devlieg
patent: 4360239 (1982-11-01), Boehringer
patent: 4714298 (1987-12-01), Mail
patent: 4993781 (1991-02-01), Lindahl
patent: 5044697 (1991-09-01), Longyear et al.
patent: 5918627 (1999-07-01), Oshiro

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