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:
Jan. 07, 2014
Filed:
Sep. 03, 2009
Yong Bin LI, Hong Kong, CN;
Wei Feng Yuan, Hong Kong, CN;
Ning Sun, Shenzhen, CN;
Xin Ping Wang, Shenzen, CN;
Yong Bin Li, Hong Kong, CN;
Wei Feng Yuan, Hong Kong, CN;
Ning Sun, Shenzhen, CN;
Xin Ping Wang, Shenzen, CN;
Johnson Electric S.A., La Chaux-de-Fonds, CH;
Abstract
A fuel pump, for an internal combustion engine, has a housing accommodating a pump and a motor. The motor is arranged to drive the pump so as to pump fuel through the housing. The motor has a wound stator having a plurality of inwardly directed teeth about which a stator winding is wound, and a radially outer surface in contact with an inner surface of the housing. One or more pathways are formed between the inner surface of the housing and the outer surface of the stator, for the flow of fuel there through. Each pathway is formed by an axially extending recess formed in the outer surface of the stator and aligned with a selected tooth of the stator.