Key member for retaining a control valve in a hub

Details Key member for retaining a control valve in a hub Key member for retaining a control valve in a hub

1989-08-14

1990-09-04

Ostrager, Allen M.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

913691, F15B 910

Patent

active

049534467

ABSTRACT:
A control valve arrangement for a pressure differential operated servomotor wherein a key member is located in a slot in a hub to retain the control valve and position the control valve in a position to isolate a first chamber from a second chamber in the absence of an input force being applied to operate the valve. The control valve in response to an input force immediately moves to initiate the development of the pressure differential and as a result substantially eliminates the operational time to effect a brake application.

REFERENCES:
patent: 3688647 (1972-09-01), Kytta
patent: 4469009 (1984-09-01), Takayama et al.
patent: 4472997 (1984-09-01), Ohmi
patent: 4487105 (1984-12-01), Harrison
patent: 4619185 (1986-10-01), Mori et al.
patent: 4633760 (1987-01-01), Wagner
patent: 4729284 (1988-03-01), Gautier
patent: 4787297 (1988-11-01), Tsuyuki et al.

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