Differential cylinder pressure gain compensation for single stag

Details Differential cylinder pressure gain compensation for single stag Differential cylinder pressure gain compensation for single stag

1990-07-12

1991-07-16

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

Jet control type

13762564, 91 3, 91370, 91384, G05D 1620

Patent

active

050316532

ABSTRACT:
Pressure gain compensation for a single-stage servovalve of the jet pipe type. The pressure gain compensation is provided by a separate reciprocally mounted spool having a feedback wire connected between the spool and the ejector jet. The spool has a differential pressure applied across the ends thereof from the receptors disposed opposed the ejector jet. Movement of the spool applies a force feedback to the ejector jet which is proportional to the pressure differential across the receptors and is opposite the force applied to the ejector by the torque motor to thereby compensate for pressure gain.

REFERENCES:
patent: 3017864 (1962-01-01), Atchley
patent: 3437101 (1969-04-01), Coakley
patent: 3667344 (1972-06-01), Wesbury
patent: 4368750 (1983-01-01), Burton

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