Engine cooling system
US6679201B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 17, 2002 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Jul 10, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M26/73
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine cooling system controls a cooling degree of an engine 1 according to an operating condition thereof by circulating cooling water through the engine. This system is provided with a flow rate regulating valve 8 for regulating a circulation flow rate of the cooling water. An electronic control unit (ECU) 30 controls the valve 8 to open at a predetermined opening when determining the engine 1 as being stopped. In this opening control, the ECU 30 controls to bring a valve element into contact with a valve body once and then move the valve element to determine the predetermined opening with reference to a full-closed position of the valve element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.