Fluid rotating apparatus
US5354179A · kind A · utility
9Cited by
19References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1992 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Dec 10, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/51
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A fluid rotating apparatus according to the present invention is designed to promptly achieve an extremely high degree of vacuum from atmospheric pressure by its single apparatus. Moreover, high-speed synchronous rotation of the rotary shafts of the apparatus is controlled by use of a rotary position detecting sensor, to thereby avoid control through mechanical contact thereof with a gear or the like. In addition, hydrostatic bearings are employed for supporting the rotary shaft to avoid mechanical abrasion and the use of lubricant oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.