An improved fluid control valve assembly employing a needle valve integrally formed on a non-rotating valve stem includes a metering orifice for engaging and forming a fluid seal with the valve needle, and a generally radially extending end face on the valve stem for engaging an opposing wall surface acting to positively stop the valve stem upon fully closing the valve and forming a seal between the metering orifice and valve needle to thereby avoid excessive loads and wear between the metering orifice and valve needle.
申请公布号
US5687949(A)
申请公布日期
1997.11.18
申请号
US19960638228
申请日期
1996.04.26
申请人
CONTROLS CORPORATION OF AMERICA
发明人
DUKAS, SANDER G.;BAILEY, KEVIN S.;COOPER, ROBERT N.;HECK, MICHAEL D.