The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 1976
Filed:
Jan. 18, 1974
Paul Fussner, Sindelfingen, DT;
Horst Salmanzig, Ludwigsburg, DT;
Robert Bosch G.m.b.H., Stuttgart, DT;
Abstract
A fuel pump assembly wherein an elongated tubular housing surrounds a fuel pump and an electric motor and has a fuel-admitting inlet at one end and a fuel-discharging outlet at the other end. The rotor of the electric motor drives the pump rotor through the medium of several axially parallel elastic pins which extend into complementary sockets of the pump rotor. The pump rotor rotates directly on a shaft which is fixedly mounted in the housing. The rotor of the electric motor rotates on several friction bearings consisting of sinter metal and surrounding the fixedly mounted shaft. The pins form part of an elastomeric casing which surrounds a portion of or the entire rotor of the electric motor. Some fuel flows from the pressure side of the pump into an annular space between the shaft and the pump rotor and thence toward the outlet by flowing through the bearings as well as through a sleeve which supports the rotor of the electric motor and rotates with the bearings.