FIELD: machine building.
SUBSTANCE: proposed device comprises self-adjusting servo fluid valve. The latter comprises inlet to receive fluid flow connected with adjusting valve inlet and outlet to feed fluid at corrected flow rate to pilot-operated valve and to one side of adjusting valve shutoff element. Note here that self-adjusting servo valve comprises proportioning needle in servo valve bore communicated with adjusting valve shutoff element. Adjusting valve outlet fluid flow rate variation automatically adjusts set fluid flow rate by pilot-operated valve at simultaneous displacement of said shutoff element and proportioning needle in response to fluid flow rate variation at adjusting valve outlet for variation of system amplification ratio.
EFFECT: higher reliability.
20 cl, 2 dwg
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Authors
Dates
2014-02-27—Published
2009-04-21—Filed