公开(公告)号：DE69607945D1

公开(公告)日：2000-05-31

申请号：DE69607945

申请日：1996-10-30

Applicant: STANDEX INT CORP

Inventor： SINGLETERRY C ,  ZAVISA JOHN

IPC: F04C14/26 ,  B23P15/00 ,  F04C15/06 ,  F04C28/26 ,  F16K17/04 ,  F04C15/04

Abstract: A pump includes a coaxially integrated pump bypass/relief valve element of high density polymer material seats against a hard metallic sleeve that is pressed into a first counterbore around the bypass flow channel with an interference fit. That axial end of the sleeve bearing the valve seat face projects, for a substantial proportion of the sleeve length, beyond the first counterbore shoulder into a second counterbore space to provide an annular space around the outside diameter surface of the sleeve to free the seat face end of the sleeve from direct structural restraint.

公开(公告)号：DE69607945T2

公开(公告)日：2000-08-17

申请号：DE69607945

申请日：1996-10-30

Applicant: STANDEX INT CORP

Inventor： SINGLETERRY C ,  ZAVISA JOHN

IPC: F04C14/26 ,  B23P15/00 ,  F04C15/06 ,  F04C28/26 ,  F16K17/04 ,  F04C15/04

Abstract: A pump includes a coaxially integrated pump bypass/relief valve element of high density polymer material seats against a hard metallic sleeve that is pressed into a first counterbore around the bypass flow channel with an interference fit. That axial end of the sleeve bearing the valve seat face projects, for a substantial proportion of the sleeve length, beyond the first counterbore shoulder into a second counterbore space to provide an annular space around the outside diameter surface of the sleeve to free the seat face end of the sleeve from direct structural restraint.