Radial piston type pumps or motors
US3972268A · kind A · utility
1Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 1973 |
| Grant date | Aug 3, 1976 |
| Priority date | — |
| Expiry date | Jan 12, 1993 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01B13/065
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A radial piston type pump or motor having a rotor with two rows of radial pistons and a pair of eccentrically disposed rings against which the pistons bear so that they reciprocate as the rotor rotates, the eccentricity of the rings being of equal magnitude and at opposite sides of the axis of rotation of the rotor, the eccentricity of the rings being controlled by a pair of side by side control pistons acting against the rings respectively and a spool contained in the bore communicating with the outlet of the pump to control the supply of fluid to the control pistons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.