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. 15, 2002
Filed:
Jun. 10, 1999
Michael Roland Brosseau, Rochester, NY (US);
Curtis David Lamb, Scottsville, NY (US);
Joseph George Spakowski, Rochester, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A fuel delivery module integrates a fuel rail, with its associated connections, features and components, with the injectors for one bank of a direct injection engine. When the module is secured to the engine, loading springs between the inlet ends of the injectors and abutments in the mounting recesses accommodate variations in manufacturing and assembly tolerances to provide adequate but not excessive loading of the injectors against associated seats of the engine. Manufacturing and assembly costs are reduced by the use a module with injectors pre-installed. Also, the module may be pretested in a suitable test fixture prior to installation to assure proper flow and spray development from each of the injectors. The module may integrate other components also, such as intake air passages, EGR passages and coolant passages and their associated components. Various examples of injector loading springs are described.