Controlled vortex regenerative pump
US4948344A · kind A · utility
16Cited by
9References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1989 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Oct 17, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D27/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A regenerative pump which has a controlled output by having movable lateral channel arcuate slots (36, 38) in channel plates (26) which are on opposite sides of a bladed rotor (18). The channel plates (26) are mounted for sliding movement to reduce the effective vortex channel length in a range from about 325.degree. to about 40.degree.. This will result in a proportional reduction of pump pressure rise and input power requirements. The position of the channel plates may be varied by a servo system that responds to a desired system output performance such as pressure rise or flow delivery rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.