Coolant system
US8065980B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2008 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | May 18, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P2037/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An engine cooling system is provided with a cooling circuit including a coolant pump for supplying an engine with a coolant and for circulating the coolant in the cooling circuit, and at least one heat exchanger for cooling said coolant downstream of the engine, wherein an expansion tank is connected to the cooling circuit upstream of the coolant pump. The cooling system is pressurized by a pressure regulating arrangement arranged to pressurize coolant supplied to the cooling circuit from the expansion tank during at least one predetermined operating mode of the engine and the expansion tank is closed to the ambient atmosphere during all normal engine operation modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.