Valve arrangement

Details Valve arrangement Valve arrangement

2004-09-28

2010-10-19

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

C251S030010

Reexamination Certificate

active

07815162

ABSTRACT:
The invention concerns a valve arrangement (1) with a housing (2), an inlet connection (3) and an outlet connection (4), which are connected with each other via a flow path, in which is located a dosing device (5), which has a valve seat (7) and a valve element (6) interacting with the valve seat (7), the valve element (6) being loaded in the direction of the valve seat (7) by a resetting device (8) and being acted upon on the side facing the valve seat (7) by a pressure in a first pressure chamber (9), said pressure corresponding to the pressure in the inlet connection (3), when the dosing device (5) is dosed, and on the side facing away from the valve seat (7) by the pressure in a second pressure chamber (11), which is connected with the outlet connection (4) via a channel arrangement (14), in which is located at least one auxiliary valve (15), and with the first pressure chamber (9) via a throttle (13). It is endeavoured to reliably ensure that the closing device (5) opens. For this purpose, it is provided that the channel arrangement (14) ends in a suction nozzle arrangement (18), which is located in the flow path.

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patent: WO 99/66270 (1999-12-01), None

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