Movable blade pump
US4362463A · kind A · utility
1Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1981 |
| Grant date | Dec 7, 1982 |
| Priority date | — |
| Expiry date | Feb 4, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D15/0055
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A movable blade pump including an actuating mechanism for imparting rotational movement to blades which mechanism is contained in an impeller boss sealed against the outside and filled with hydraulic fluid and is driven by a hydraulic cylinder device secured to a suction casing below the impeller boss. Feed and discharge of hydraulic fluid into and from the hydraulic piston device are effected through fluid passages formed in the suction casing and a fixed mounting for the hydraulic fluid device, and the blades are set at any angular positions within the range of the stroke of the piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.