Control device for an actuator for moving a member which is mova

Details Control device for an actuator for moving a member which is mova Control device for an actuator for moving a member which is mova

1985-10-23

1987-05-19

Garrett, Robert E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91376R, 98 2, 13762521, F15B 910

Patent

active

046657991

ABSTRACT:
The invention relates to a control device for a moving member such as a flap (20) under the control of an actuator (24a) which is supplied with fluid under pressure and connected to an exhaust by means of a slide valve (10a) which includes three elements (12a, 14a, and 15a) one of which moves with the flap (20a), another of which is movable under manual control (30a), and the third of which is fixed and forms the connection to a source of fluid under pressure and to the exhaust. The invention may be used, in particular, for controlling the flaps in an installation for heating or for air conditioning the cabin of a motor vehicle.

REFERENCES:
patent: 683427 (1901-10-01), Bargea
patent: 2380369 (1945-07-01), Nix
patent: 2837115 (1958-06-01), Bancroft
Patent Abstracts of Japan, vol. 4, No. 161 Japan 55-110617 1980.

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