Arrangement and a control method of an engine cooling system
US9797295B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2015 |
| Grant date | Oct 24, 2017 |
| Priority date | — |
| Expiry date | Dec 16, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M26/22
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine cooling system in a vehicle comprises a first coolant circuit and a second coolant circuit connecting an engine to a radiator. A thermostat is arranged in the first coolant circuit and is arranged to be closed during engine warm-up, to prevent flow through the first coolant circuit. The cooling system further comprises a bypass circuit connecting the thermostat to the second coolant circuit and at least one parallel circuit. Each parallel circuit is connected to the second coolant circuit upstream of the bypass circuit, wherein a partial coolant flow is directed from the bypass circuit and upstream through the second coolant circuit into the at least one parallel circuit during engine warm-up. The disclosure further relates to a method for controlling such an engine cooling system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.