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Method and Device for Operating Fuel Cells
| Content Provider | The Lens |
|---|---|
| Abstract | A system and method for operating a fuel-cell system, which is attached to at least one further component via a cooling and/or lubricating circuit. A water-based, oil-free coolant and lubricant is used, and a flushing procedure for the fuel cell is initiated when a contamination of the fuel cell by the water-based, oil-free coolant and lubricant is detected. |
| Related Links | https://www.lens.org/lens/patent/011-941-801-327-534/frontpage |
| Language | English |
| Publisher Date | 2017-12-12 |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Patent |
| Jurisdiction | United States of America |
| Date Applied | 2014-03-19 |
| Agent | Jordan Ip Law, Llc Todd A. Vaughn |
| Applicant | Magna Steyr Eng Ag & Co Kg |
| Application No. | 201414219280 |
| Claim | A method for operating a fuel-cell system, the method comprising: connecting the fuel-cell system to a compressor using a cooling and lubricating circuit that uses a water-based, oil-free coolant and lubricant to lubricate the compressor; lubricating a bearing point with the water-based, oil-free coolant and lubricant, the bearing point being a connection between the compressor and a drive motor; detecting whether the water-based, oil free coolant and lubricant, that lubricated the bearing point, has contaminated at least one fuel cell of the fuel-cell system; and initiating, upon detection that the water-based, oil free coolant and lubricant has contaminated the at least one fuel cell, a flushing sequence to remove the water-based, oil free coolant and lubricant from the at least one fuel cel The method of claim 1 , wherein the water-based, oil-free coolant and lubricant contains water-soluble additives. The method of claim 1 , wherein the fuel-cell system is attached to auxiliary assemblies of a vehicle. The method of claim 3 , wherein the fuel-cell system and the attached auxiliary assemblies have a shared cooling-lubricant circuit. The method of claim 1 , wherein the flushing sequence is performed using additional water to the water-based, oil-free coolant and lubricant. The method of claim 1 , wherein: detection of the contamination includes detecting a power drop by conducting measurements including at least one from the group consisting of current measurement, impedance measurement, exhaust gas measurements on the anode side, exhaust gas measurements on the cathode side and cyclic voltammetry. The method of claim 1 , wherein the flushing sequence is performed by introducing additional moisture from a humidifier via an air supply line. The method of claim 1 , wherein: the flushing sequence is performed by multiple repetitions of the flushing sequence and/or by single or multiple combination of different methods of flushing; and the flushing sequence is terminated using a drying process. The method of claim 1 , further comprising cooling the at least one fuel cell with the water-based, oil free coolant and lubricant. |
| CPC Classification | 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 POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS;PUMPS Processes Or Means; E.G. Batteries; For The Direct Conversion Of Chemical Energy Into Electrical Energy Reduction Of Greenhouse Gas [Ghg] Emissions; Related To Energy Generation; Transmission Or Distribution Climate Change Mitigation Technologies Related To Transportation |
| Examiner | Kenneth J Douyette |
| Extended Family | 011-941-801-327-534 172-174-248-199-795 192-828-438-880-448 132-953-638-170-025 096-289-374-668-316 118-889-965-579-046 |
| Patent ID | 9843060 |
| Inventor/Author | Mayr Franz Ramschak Erich |
| IPC | H01M8/04 B60L1/00 B60L1/06 B60L3/00 B60L11/18 F04B39/02 H01M8/02 H01M8/04029 H01M8/04111 H01M8/04223 H01M8/0438 H01M8/0444 H01M8/04537 H01M8/04664 H01M8/04694 H01M8/04746 H01M8/04828 H01M8/1018 |
| Status | Active |
| Owner | Magna Steyr Engineering Ag & Co Kg |
| Simple Family | 011-941-801-327-534 172-174-248-199-795 192-828-438-880-448 132-953-638-170-025 096-289-374-668-316 118-889-965-579-046 |
| CPC (with Group) | B60L1/06 B60L1/003 B60L3/003 B60L3/0061 B60L50/51 B60L50/72 B60L58/26 B60L58/33 B60L2240/36 B60L2240/421 B60L2240/423 F04B39/02 H01M8/04029 H01M8/04111 H01M8/04231 H01M8/04537 H01M8/04679 H01M8/04768 H01M8/04835 H01M2008/1095 Y02E60/50 Y02T10/64 Y02T10/70 Y02T90/40 H01M8/04303 |
| Issuing Authority | United States Patent and Trademark Office (USPTO) |
| Kind | Patent/New European patent specification (amended specification after opposition procedure) |
