Title:
【発明の名称】直接には構造的に拘束されていないリリーフバルブシートを備えたポンプ
Document Type and Number:
Japanese Patent JP2886344
Kind Code:
B2
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.
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Inventors:
SHINGURUTERII RON SHII
ZAUISA JON
ZAUISA JON
Application Number:
JP51746297A
Publication Date:
April 26, 1999
Filing Date:
October 30, 1996
Export Citation:
Assignee:
SUTANDETSUKUSU INTERN CORP
International Classes:
F04C14/26; B23P15/00; F04C15/06; F04C28/26; F16K17/04; (IPC1-7): F04C15/04
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)