Title:
INTERNAL-COMBUSTION ENGINE COOLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/090483
Kind Code:
A1
Abstract:
This internal-combustion engine cooling system is provided with: a refrigerant flow passage through which a refrigerant flows between an internal-combustion engine and a heat exchanger; a flow rate control valve which is provided in the refrigerant flow passage and controls the flow of refrigerant flowing through the refrigerant flow passage; and a control unit which switches the flow rate control valve from a fully-open state to a fully-closed state on the basis of the supply of a negative pressure generated by the internal-combustion engine, and switches the flow rate control valve from the fully-closed state to the fully-open state over a second time period which is longer than a first time period required for the flow rate control valve to transition from the fully-closed state to the fully-open state when the negative pressure supply ceases.
Inventors:
KOGA YOJIRO (JP)
SATO TADAYOSHI (JP)
SATO TADAYOSHI (JP)
Application Number:
PCT/JP2016/083790
Publication Date:
June 01, 2017
Filing Date:
November 15, 2016
Export Citation:
Assignee:
AISIN SEIKI (JP)
International Classes:
F01P7/16; F01P3/20; F16K31/126
Foreign References:
| JPS57168017A | 1982-10-16 | |||
| JPS584730U | 1983-01-12 | |||
| JP2011214566A | 2011-10-27 | |||
| JP2014231825A | 2014-12-11 | |||
| JPH01179119U | 1989-12-22 | |||
| JP2013249810A | 2013-12-12 |
Other References:
See also references of EP 3382176A4
Attorney, Agent or Firm:
R&C IP LAW FIRM (JP)
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