Pumps – Diverse pumps – Including rotary nonexpansible chamber type
Patent
1993-12-20
1995-02-28
Gluck, Richard E.
Pumps
Diverse pumps
Including rotary nonexpansible chamber type
417205, 4174234, 4174236, 4174104, F04B 2314
Patent
active
053932030
ABSTRACT:
A motor vehicle fuel pump including a tubular shell, an electric motor in the shell having an armature shaft rotatable about a longitudinal centerline of the shell, and a pump assembly at one end of the shell having a first rotatable element therein and a second element therein between the first rotatable element and the electric motor. A barrel-shaped driver in a cavity between the first and second rotatable elements includes drive lugs on each longitudinal end projecting into corresponding drive sockets in the first and second rotatable elements. Each drive lug has a rounded edge engaging a side of the corresponding drive socket such that the driver is effectively decoupled from the first and second rotatable elements except with respect to force reactions establishing torsional force couples on the rotatable elements in planes perpendicular to the longitudinal centerline of the shell. The armature shaft has a distal end defining a drive tang received in a correspondingly shaped cavity in the barrel-shaped driver.
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General Motors Corporation
Gluck Richard E.
Schwartz Saul
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