Patents
US 8206864 B2: Fuel cell stacks and systems with fluid-responsive temperature regulation
- Granted
- 2012-06-26
- Filed
- 2011-08-19 application 13213645
- Type
- Utility · 36 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Fuel cell stacks and systems with thermal management systems to deliver a liquid heat exchange fluid into thermal communication with the stack and thereafter recycle the stream. In some embodiments, the system is adapted to selectively apportion the recycled liquid stream between a stream that, prior to reuse as a heat exchange stream, is returned to a fluid reservoir and/or selectively cooled, and/or selectively returned to the reservoir and mixed with heat exchange fluid in the reservoir, and a stream that is returned into thermal communication with the stack without returning the stream to the reservoir and/or without heating or cooling and/or without being mixed with additional heat exchange fluid. In some embodiments, the system is adapted to automatically apportion the recycled stream responsive to its temperature. In some embodiments, the system includes a thermostatic valve and/or selectively apportions the recycled stream without requiring an electronic controller or manual input.
Source: PVGPATDIS, file of 2026-04-10 (ipg120626.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Idatech, LLC 38 patents | US company or organization | Bend, OR | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Bret Baird | Bend, OR | 2 | PVGPATDIS, file of 2026-04-10 | |
| Jeffrey P. Stolasz | Bend, OR | 1 | PVGPATDIS, file of 2026-04-10 | |
| Christopher Wright | Bend, OR | 60 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H01M | Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy | H01M8/0612 | PVGPATDIS, file of 2026-04-10 |
| B60L | Propulsion of electrically-propelled vehicles ; supplying electric power for auxiliary equipment of electrically-propelled vehicles ; electrodynamic brake systems for vehicles in general ; magnetic suspension or levitation for vehicles; monitoring operating variables of electrically-propelled vehicles; electric safety devices for electrically-propelled vehicles | B60L1/003 | PVGPATDIS, file of 2026-04-10 |
| Y02E | Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution | Y02E60/50 | PVGPATDIS, file of 2026-04-10 |
| Y02T | Climate change mitigation technologies related to transportation | Y02T10/70 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2013-03-27 | Security interest Security interest Option | IDATECH, LLC signed 2013-03-13 | DCNS SA 44 620 LA MONTAGNE | 30100/642 | PASDL, file of 2026-10-15 |
| 2011-08-19 | Assignment Assignment of assignor's interest | BAIRD, BRET C. signed 2005-12-08 STOLASZ, JEFFREY P. signed 2005-12-08 WRIGHT, CHRISTOPHER J. signed 2005-12-08 | IDATECH, LLC BEND, OR | 26788/380 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.