Pump for supplying liquid fuel
US4408966A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 19, 1980 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Dec 19, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D13/024
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump for forcedly feeding kerosene or like fluid comprises a rotor, a housing rotatably accommodating the rotor, a stator for forming a rotary magnetic field to rotate the rotor, and a fluid feeding portion. When the rotor is a disk, spiral grooves providing the feeding portion are formed in the rotor and/or a housing wall opposed to the rotor. When the rotor is tubular, a helical groove or grooves are formed in the outer surface of a fixed shaft serving as part of the housing and/or in the inner peripheral surface of the rotor to provide the feeding portion. The pump properly feeds the fluid at widely varying flow rates including a very small rate free of any leak and without producing a loud noise. The pump, including a motor as a component, is compact, thin and simple in construction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.