Scroll type fluid displacement machine
US6050793A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1998 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Jun 4, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C23/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The machine includes a fixed disk (2) comprising a spiral wall (3), a mobile disk (4) also comprising a spiral wall (5) cooperating with that of the fixed disk, and means (11, 16, 22, 23) for driving circular translation movement of the mobile disk, the mobile disk being positioned axially by a system including a shoe (25, 32, 36) rubbing between two lateral abutments (26, 27-34, 35-39, 40), one member of the pair of members (i.e. the shoe or the lateral abutments, being attached to a fixed frame (1) and the other member of this pair of members being fastened to the mobile disk (4), characterized in that the fixed disk (2) is joined on the side opposite the mobile disk (4) to a fixed central shaft (7) joined to the frame (1) and including a discharge passage (8), the central shaft (7) being surrounded by a sealing bellows (12) connected at one end to the frame and at its other end to a connecting flange (10, 10A) the periphery of which, around the fixed disk (2), is joined to the mobile disk (4) beyond its spiral wall (5), the mobile disk (4) and the flange (10, 10A) forming a casing enclosing the fixed disk (2), the space (13) between the bellows (12) and the central shaft (7) con…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.