Title:
DIFFERENTIAL PRESSURE VALVE
Document Type and Number:
WIPO Patent Application WO/2020/262244
Kind Code:
A1
Abstract:
This differential pressure valve has: valve chambers (141); circular valve bodies (94) that are provided in the valve chambers (141); inlets (106) which are formed in the bottoms (142) of the valve chambers (141) and through which air from one air springs flows; outlets (61, 71) which are formed in the inner circumferential surfaces (138) of the valve chambers (141) and through which the air flows out to the other air springs; sheets (104) that are formed in the bottoms (142) of the valve chambers (141) so as to surround the inlets (106); and biasing members (95) that bias the valve bodies (94) in the valve closing direction toward the sheets (104). The valve bodies (94) are each provided with a first flange (112) on the corresponding bottom (142) side. The first flange (112) is provided with a plurality of first projections (118) that project radially outward, and first recesses (116) that are recessed radially inward at positions opposite to the first projections (118) in the circumferential direction.
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Inventors:
TOYA SUSUMU (JP)
NUMAKURA TOMOYA (JP)
NUMAKURA TOMOYA (JP)
Application Number:
PCT/JP2020/024177
Publication Date:
December 30, 2020
Filing Date:
June 19, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B61F5/10; F16F9/04; F16F9/34; F16F9/50; F16F15/023; F16K15/06
Foreign References:
| JP2014167327A | 2014-09-11 | |||
| JP2014167319A | 2014-09-11 | |||
| JP2005106452A | 2005-04-21 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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