Cooling circuit of a liquid-cooled internal combustion engine
US6772715B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Dec 13, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01P2060/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a cooling circuit of a liquid-cooled internal combustion engine of a motor vehicle having a coolant pump, an electrical mixing valve, a radiator, a heater, an engine-oil heat exchanger, a transmission-oil cooler for transferring heat to the ambient air, a transmission-oil/cooling water heat exchanger for transferring heat between the transmission oil and the cooling water arranged in parallel flow circuit with the transmission-oil cooler, and an actuator for controlling the oil flow distribution, an electrical mixing valve is arranged in the cooling water line to the radiator/transmission-oil cooler and the transmission-oil/cooling water heat exchanger, such that the heat transfer in the transmission-oil/cooling water heat exchanger can be controlled by controlling the coolant flows through the transmission oil/cooling water heat exchanger and the radiator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.