Vane pump with cylinder profile defined by cycloid curves
US4432711A · kind A · utility
9Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1981 |
| Grant date | Feb 21, 1984 |
| Priority date | — |
| Expiry date | Nov 2, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2/3446
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vane pump comprising a cylindrical rotor provided with a diametrically extending vane groove, a vane slidably arranged in the vane groove in radial directions, a cylinder in which the rotor is rotatably arranged, the cylinder having an inner peripheral cam surface with which said vane always comes into sliding contact at its opposed ends, the cam surface of the cylinder having a profile defined by cycloid curves and/or arc portions which have a radius substantially equal to that of the rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.