Title:
VALVE ORIFICE INSERT
Document Type and Number:
WIPO Patent Application WO/2023/195231
Kind Code:
A1
Abstract:
A valve orifice insert has a stepped-shaped wall including a first tubular section and a second tubular section having a smaller outer dimension than the first tubular section, and a lip structure protruding axially and including a planar valve seat surface. The first tubular section and the second tubular section being are joined by a step structure. At least one circumferential protrusion extends radially outward a predetermined distance from an outer surface of the first tubular section or an outer surface of the second tubular section to form an interference fit with the step-shaped opening when the valve orifice insert is fitted into the step-shaped opening.
Inventors:
DICK JOHN T (US)
WEBSTER DAVID DANIEL (US)
WEBSTER DAVID DANIEL (US)
Application Number:
PCT/JP2023/004390
Publication Date:
October 12, 2023
Filing Date:
February 09, 2023
Export Citation:
Assignee:
HORIBA STEC CO LTD (JP)
International Classes:
F16K1/42; F16K7/16; F16K7/17
Foreign References:
| US20180356845A1 | 2018-12-13 | |||
| US20070145321A1 | 2007-06-28 | |||
| US20210310565A1 | 2021-10-07 | |||
| JPH1165671A | 1999-03-09 |
Attorney, Agent or Firm:
NISHIMURA, Ryuhei et al. (JP)
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