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:
Dec. 11, 2001
Filed:
Jan. 19, 2000
Karl Jacob Haltiner, Jr., Fairport, NY (US);
Robert B. Perry, Leicester, NY (US);
Peter Ronald Wendt, Fairport, NY (US);
Jay Keith Sofianek, Webster, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
An engine fuel injector (,) having a fuel inlet tube (,) and a biasing spring (,) loading a solenoid actuated injection valve (,) within the injector (,) is provided with a calibration assembly (,) combining the calibration member (,) or tube with an internally mounted fuel inlet filter (,). The calibration member (,) may include a body (,) with an enlarged end (,) that is interference fitted within the fuel inlet tube (,) and an opposite stepped in end (,) forming a seat (,) which is engaged by the biasing spring (,). The fuel filter (,) has an enlarged annular base (,) fixed within the enlarged end (,) of the calibration member (,) and having an associated filter screen (,) or element through which fuel passing through the calibration member is filtered for passage through the injector (,). The filter screen (,) may extend completely within the calibration member (,), or alternatively, can project outward from the enlarged end (,) of the calibration member (,) into the inlet end (,) of the fuel inlet tube (,). Advantages in the ease of calibration, reduced assembly costs and improved filtration of fuel are provided.