Pumps, compressors, and expanders with a teardrop-shaped rotor
US12352268B2 · kind B2 · utility
0Cited by
108References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2023 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Jul 2, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2250/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Rotary positive displacement machines can include a rotor having a teardrop-shaped profile that undergoes planetary motion relative to a stator having an elliptical or near-elliptical profile. In some embodiments, these rotary positive displacement machines can be used for a variety of applications including as positive displacement pumps. In some embodiments the rotor and stator are helical. In some embodiments the rotor comprises a dynamic seal. Aspects of the machine geometry can be selected to provide operational and/or durability benefits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.