A two-stage pressure relief valve for use with hydraulic systems is disclosed. The two-stage pressure relief valve has a first stage that relieves increases in hydraulic system pressure over the normal operating pressure and up to a selected threshold pressure level, and a second stage that brings the hydraulic system pressure down to a selected reduced operating pressure that is below the normal operating pressure in response to increases in the operating pressure over the threshold pressure level.
申请公布号
WO2005089091(A3)
申请公布日期
2006.08.03
申请号
WO2004US35899
申请日期
2004.10.27
申请人
BELL HELICOPTER TEXTRON INC.;FENNY, CARLOS, A.;BRYAN, DARREL, B.;SCHULTZ, DAVID, P.
发明人
FENNY, CARLOS, A.;BRYAN, DARREL, B.;SCHULTZ, DAVID, P.