Pump for supplying liquid fuel

Details Pump for supplying liquid fuel Pump for supplying liquid fuel

1980-12-19

1983-10-11

Croyle, Carlton R.

Pumps

Motor driven

Pump within rotary working member

417420, 415 90, 310268, F04B 3504, F01D 136, H02K 122

Patent

active

044089660

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.

REFERENCES:
patent: 3575536 (1971-04-01), Jacobs
patent: 3781136 (1973-12-01), Jacobson
patent: 3794449 (1974-02-01), Brouwer
patent: 3870433 (1975-04-01), Raikov et al.
patent: 3932069 (1976-01-01), Giardini et al.
patent: 4171182 (1979-10-01), Feres

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