Control means for a two stage servomotor

Details Control means for a two stage servomotor Control means for a two stage servomotor

1976-03-22

1978-02-07

Schwadron, Martin P.

Power plants

Pressure fluid source and motor

Pulsator

60553, 60562, 60588, 91369A, B60T 1108, F15B 704

Patent

active

040720144

ABSTRACT:
The control valve for a two stage servomotor used in a braking system. A two stage servomotor has a housing with a stepped bore therein for retaining a piston and a cylindrical body. A deformable member adjacent the cylindrical body transmits a first operational input into the piston. A first operational input moves the piston and produces a pressure signal. The first operational input and the resistance to movement by the piston changes the shape of the deformable member. The changes in the shape of deformable member moves the control valve and allows the pressure signal to be communicated to the cylindrical body. The pressure signal acting on the cylindrical body provides an additional second operational force for moving the piston.

REFERENCES:
patent: 3559406 (1971-02-01), Gardner
patent: 3727623 (1973-04-01), Robbins
patent: 3910048 (1975-10-01), Gardner
patent: 3911681 (1975-10-01), Sisco
patent: 3972191 (1976-08-01), Grabb

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