Title:
OVERFLOW PREVENTION VALVE AND TANK VALVE DEVICE PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2023/157570
Kind Code:
A1
Abstract:
This overflow prevention valve comprises: a housing that includes a valve chamber having a first opening and a second opening; a valve body that is housed in the valve chamber and is seated on and released from a valve seat surrounding the first opening according to the differential pressure between the fluid pressure at the first opening and the fluid pressure at the second opening; and a spring that biases the valve body so as to be released from the valve seat. The valve body includes an inner passage that is connected to the second opening, a connecting passage that is connected to the inner passage and connected to the first opening with the valve chamber therebetween, and a throttle flow path that is connected to the inner passage and that faces the first opening, the flow path area of the throttle flow path being smaller than the flow path area of the connecting passage.
More Like This:
| WO/2017/207105 | DIALYSIS MACHINE AND CONSTANT FLOW RESTRICTOR |
Inventors:
NINOMIYA MAKOTO
OKAMOTO MASAYOSHI
HAYASE TOMOYA
MUKAI KOJI
OKAMOTO MASAYOSHI
HAYASE TOMOYA
MUKAI KOJI
Application Number:
PCT/JP2023/001909
Publication Date:
August 24, 2023
Filing Date:
January 23, 2023
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD (JP)
International Classes:
F16K17/30; G05D16/10
Foreign References:
| JPS59132957U | 1984-09-06 | |||
| JPS61150576U | 1986-09-17 | |||
| JP2007058348A | 2007-03-08 | |||
| JPS5949004U | 1984-03-31 |
Attorney, Agent or Firm:
ISHIDA, Shoji (JP)
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