Slide vane machine
US5316456A · kind A · utility
Inventor
Key dates
| Filing date | Jun 11, 1992 |
| Grant date | May 31, 1994 |
| Priority date | — |
| Expiry date | Jun 11, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2250/301
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary slide vane machine has a housing with the inner contour of a Pascalian screw. The rotary piston is a hollow circular cylinder with an axis of rotation within the zero point M' of the Pascalian coordinates. The control shaft with eccentric segments is arranged inside the piston and has an axis of rotation within the center M of the Pascalian base circle. Slide vanes of a length L are guided within grooves of the rotary piston. Bearing bushings are rotatably guided on the eccentric segments and having flanges connected to the wings of the vanes. The length L is 6D+2r.sub.8s +2d.sub.61 +2e+2s (D is the diameter of the base circle, r.sub.8s the radius of the eccentric segments, d.sub.61 the wall thickness of the bearing sleeves, e the minimal displacement of the wing, and s the minimal distance between bearing sleeve and machine parts moving thereto). The flange contour is limited by an arc having the minimal distance s to the inner mantle surface of the rotary piston and by distance S'E'.sub.min of a wing to an inner edge E' of neighboring wings and by an arc with the radius r.sub.Kb minus the minimal distance s.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.