Variable stroke positive displacement pump
US4830589A · kind A · utility
25Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1988 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Sep 8, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B1/07
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable stroke positive displacement piston pump in which the effective eccentricity of the crankshaft controlling the stroke is adjustable by means of a worm/worm gear combination driving a hub to which eccentric rings are keyed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.