Pumps – Motor driven – Including means utilizing pump fluid for augmenting cooling,...
Patent
1982-03-16
1985-01-15
Freeh, William L.
Pumps
Motor driven
Including means utilizing pump fluid for augmenting cooling,...
417423R, 415 53T, 415213T, F04B 3504, F04D 500
Patent
active
044936206
ABSTRACT:
An electrically operated fuel pump device for use in vehicles comprises a regenerative pump component and an electric motor component operatively connected to the regenerative pump component to actuate the same. The regenerative pump component includes a casing defining therein a pump chamber and a closed vane type impeller rotatably disposed within the pump chamber. The impeller has an outer peripheral portion thereof cooperating with the pump chamber to define a pump flow passage. The impeller has in the outer peripheral portion a plurality of circumferentially spaced vane grooves formed in opposite end faces of the impeller. The impeller has its outer diameter within a range of approximately 20-65 mm. A flow passage representative dimension defined by S/l is within a range of approximately 0.4-2 mm where S is a cross-sectional area of the pump flow passage and l is a cross-sectional peripheral length of the outer peripheral portion of the impeller.
REFERENCES:
patent: 1640591 (1927-08-01), Borneman
patent: 1865396 (1932-06-01), Claypool
patent: 3119343 (1964-01-01), White
patent: 3259072 (1966-07-01), Carpenter
patent: 3418991 (1968-12-01), Shultz et al.
patent: 3871797 (1975-03-01), Igarashi et al.
patent: 4006998 (1977-02-01), Schonwald
Carter, Karassik and Wright, Pump Questions and Answers, First Edition, McGraw Hill Book Co., Inc. 1949, pp. 187-195.
Hattori Yoshiyuki
Matsui Kazuma
Nakamura Toshiaki
Ohnishi Shunsaku
Takei Toshihiro
Freeh William L.
Neils Paul F.
Nippondenso Co. Ltd.
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