Apparatus for optimized cooling of a drive unit and a fuel cell in a fuel cell vehicle
US8263279B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2008 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | May 23, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for cooling a fuel cell stack and a drive unit in a fuel cell vehicle is disclosed, wherein the system includes a drive unit and a fuel cell stack. An oil cooling loop for the drive unit includes a three way valve, a liquid to liquid heat exchanger, and a pump. The liquid to liquid heat exchanger may be used to transfer drive unit off heat into the stack coolant loop. By not using an oil to air heat exchanger overall heat exchanger arrangement air side pressure drop can be minimized and airflow increased. The three way valve allows decoupling of the cooling loops if needed to inhibit negative impact on the fuel cell stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.