Patents
US 12658764 B2: High current density electric machine
- Granted
- 2026-06-16
- Filed
- 2021-09-28 application 18689128
- Type
- Utility · 27 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An electric machine includes a stator having a stator bore and a stator winding. The stator winding is arranged to one of receive an electrical current and produce an electrical current having a power between 1 MW and 50 MW. The stator has a stator current density of greater than 5 A/mm2. A rotor is at least partially disposed within the stator bore and has a rotor winding. The rotor has a rotor current density of greater than 5 A/mm2. A high-pressure cooling system is operable to actively cool the stator and the rotor. The rotor winding and the stator winding interact to one of produce rotation of the rotor to drive a connected device in response to the receipt of the electrical current and produce the electrical current in response to rotation of the rotor driven by the connected device.
Source: PTBLXML, file of 2026-06-16 (ipgb20260616.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| SIEMENS ENERGY, INC. 1,177 patents | US company or organization | Orlando, FL | PTBLXML, file of 2026-06-16 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Bobby A Warren | Fort Mill, SC | 7 | PTBLXML, file of 2026-06-16 | |
| Raul Ricardo Rico | Oviedo, FL | 14 | PTBLXML, file of 2026-06-16 | |
| Christopher Lowry | McAdenville, NC | PTBLXML, file of 2026-06-16 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02K | Dynamo-electric machines | H02K9/18 | PTBLXML, file of 2026-06-16 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-03-05 | Assignment Assignment of assignor's interest | WARREN, BOBBY A. signed 2021-09-21 RICO, RAUL RICARDO signed 2021-09-27 LOWRY, CHRISTOPHER signed 2021-09-22 | SIEMENS ENERGY, INC. ORLANDO, FL | 66648/985 | PASDL, file of 2026-10-15 |
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.