Trapped volume vent means for meshing lobes of roots-type supercharger
US5131829A · kind A · utility
31Cited by
10References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 19, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Jun 19, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C29/0035
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary positive displacement blower (10) of the Roots-type having inlet and outlet vents recess (60,62) for reducing fluid pressure build up in spaces between meshing, helical lobes (34a, 36a) on rotating rotors of the blower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.