Negative pressure type booster arrangement

Details Negative pressure type booster arrangement Negative pressure type booster arrangement

1981-09-23

1984-09-04

Garrett, Robert E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

F15B 910

Patent

active

044690088

ABSTRACT:
A negative pressure type booster arrangement comprises a pair of booster shells divided by a booster piston disposed therein for reciprocating movement into a constantly negative pressure chamber and a variable pressure chamber. The second chamber is always put in interchangeable communication with the first chamber via a control valve mechanism. An input rod is retractively connected to the booster piston, and is also connected to the valve control mechanism for permitting the booster piston to follow advancement of the input rod due to a difference in air pressure between both chambers. An input transmitting lever is mounted on the rear end of the input rod. A first arm is provided for supporting an operating lever extending successively from the booster shells and for pivotally supporting one end of the input transmitting lever, and a second arm is provided for supporting an operating wire.

REFERENCES:
patent: 3841449 (1974-10-01), Coffey et al.
patent: 4022112 (1977-05-01), Putt et al.

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