Valve system configurations for warming and cooling transmission fluid
US9452660B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2014 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | May 15, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H57/0413
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to valve system configurations for an active warm-up (AWU) system for an automobile to improve warm-up conditions without delaying cabin warm-up or defrost times. More specifically, the invention relates to a system for heating/cooling transmission fluid of an automobile by controlling the source of the heat exchange fluid for transferring heat to/from the transmission fluid during different start-up conditions using a series of various valves arranged in series intermediate a first heat exchanger associated with cabin warm-up/defrost of the passenger compartment and a second heat exchanger for transferring heat to/from the transmission fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.