Title:
GEAR ROTOR TYPE FUEL PUMP
Document Type and Number:
Japanese Patent JPS5929765
Kind Code:
A
Abstract:
A rotary pump for pumping liquid which includes a rotor combination in the form of a vane pump or gear and rotor with pumping chambers disposed circumferentially around the rotor. The chambers progressively increase in the inlet area and ensmall in the outlet area. Resilient means are interposed between the ensmalling chambers and an outlet to block backflow of the pressurized outlet liquid into pumping chambers containing vaporized liquid instead of solid liquid, thus reducing the pump noise under conditions of vaporization termed "cavitation".
Inventors:
CHIYAARUZU HENRII TATSUKII
Application Number:
JP12563683A
Publication Date:
February 17, 1984
Filing Date:
July 12, 1983
Export Citation:
Assignee:
WALBRO CORP
International Classes:
F02M37/08; F02M37/10; F04C11/00; F04C15/00; F04C15/06; (IPC1-7): F02M37/04
Domestic Patent References:
| JPS57119156A | 1982-07-24 | |||
| JPS3935772Y1 | ||||
| JPS5698559A | 1981-08-08 |
Attorney, Agent or Firm:
Hideo Takino
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