Dry dual-scroll vacuum pump
US11988210B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2021 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Jun 21, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/807
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A dry dual-scroll vacuum pump includes a driving assembly and an upper cover located above the driving assembly, wherein the driving assembly includes an output shaft, and a movable disk is eccentrically arranged on the output shaft; two groups of first scroll teeth that are centrally symmetrical are arranged on a side of the movable disk that faces the upper cover; a fixed disk is arranged at a lower end of the upper cover, second scroll teeth that are in one-to-one correspondence with the first scroll teeth are arranged on the fixed disk, and the first scroll teeth are meshed with the second scroll teeth to form a compression cavity; and the upper cover is further provided with an air inlet and an air outlet, which correspond to the compression cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.