Scroll fluid machine having forced convection generating portion
US7497673B2 · kind B2 · utility
0Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2007 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Mar 23, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/42
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a scroll fluid machine, a driving shaft has an eccentric axial portion around which an orbiting scroll revolves while the orbiting scroll engages with a fixed scroll. A cooling path extends through the driving shaft to a gap between the outer circumferential surface of the eccentric axial portion and the inner circumferential surface of an axial hole of the orbiting scroll. A cooling gas is introduced into the cooling path to cool bearings around the driving shaft. A forced convection generating portion is provided on the driving shaft for sucking the cooling gas into the gap and discharging the gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.