Aggregate for supplying fuel from a supply tank to internal comb

Details Aggregate for supplying fuel from a supply tank to internal comb Aggregate for supplying fuel from a supply tank to internal comb

1991-04-24

1992-08-18

Smith, Leonard E.

Pumps

Motor driven

Including means utilizing pump fluid for augmenting cooling,...

418171, F04B 1700, F04C 210

Patent

active

051393956

ABSTRACT:
An aggregate for supplying fuel from a supply tank to an internal combustion engine of a power vehicle has a housing with a cover, an electrical drive motor with a motor armature, a supply pump driven by the electric drive motor and formed as a gear pump. The supply pump has a toothed pinion and a toothed ring surrounding the toothed pinion and engaging with the latter. The toothed ring has a number of teeth which is greater than the number of teeth of the pinion and extends eccentrically to an axis of rotation of the motor armature while the pinion is arranged coaxially with the axis of rotation of the motor armature so that a local engagement between the teeth of the toothed ring and the pinion is obtained. A pump chamber is formed by the toothed ring and the pinion and also walls, The pinion is fixedly connected with the motor armature for joint rotation therewith, and one of the walls which is close to the motor armature is connected with a cover plate which is fixedly connected with the toothed ring for joint rotation therewith.

REFERENCES:
patent: 1648730 (1927-11-01), Hill
patent: 4629399 (1986-12-01), Friebe
patent: 4747744 (1988-05-01), Dominique
patent: 5090883 (1992-02-01), Krauter et al.

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