A method and apparatus for biasing a seal assembly in a high pressure fluid pump. In one embodiment, the fluid pump includes a reciprocating plunger, a seal carrier disposed about the plunger, and a seal supported by the seal carrier and sealably engaged with the plunger. The seal may be biased toward the seal carrier with a spring and may include a flange that engages the spring to restrict lateral motion of a spring relative to the reciprocating plunger. The flange may engage an inner and/or an outer surface of the spring. Where the spring is a coil spring, the flange may be continuous around the circumference of the spring or may include a plurality of spaced apart projections located around the circumference of the spring.
申请公布号
WO9914500(A1)
申请公布日期
1999.03.25
申请号
WO1998US19410
申请日期
1998.09.17
申请人
FLOW INTERNATIONAL CORPORATION;TREMOULET, OLIVIER, L., JR.;RAGHAVAN, CHIDAMBARAM;MADDEN, KATHERINE, M.
发明人
TREMOULET, OLIVIER, L., JR.;RAGHAVAN, CHIDAMBARAM;MADDEN, KATHERINE, M.