Scroll type fluid machinery
US7309219B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2004 |
| Grant date | Dec 18, 2007 |
| Priority date | — |
| Expiry date | Feb 27, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C23/001
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a scroll type fluid machine which enables both of a fixed scroll and an orbiting scroll to be cooled by means of a cooling fan, and which enables an overall size of the machine to be compact. Cooling fans 38A and 38B are connected to a rotary shaft 18 between an electric motor 15 and orbiting scrolls 26A and 26B. Outer cases 3A and 3B are provided with flow inlet openings 42A and 42B, flow outlet openings 43A and 43B, scroll ducts 44A and 44B and cooling device ducts 46A and 46B. Compression portions 6A and 6B are operated by rotatably driving the rotary shaft 18 using the electric motor 15. In this instance, the cooling fans 38A and 38B are rotated with the rotary shaft. Therefore, with a simple structure having no electric fans, the fixed scrolls 7A and 7B, the orbiting scrolls 26A and 26B and the cooling device 47 can be efficiently cooled, and a compressor having a compact size and a high cooling performance can be formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.