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:
Apr. 16, 2002
Filed:
Mar. 28, 2000
Joseph George Spakowski, Rochester, NY (US);
Gail E. Geiger, Caledonia, NY (US);
John Henry Delaney, Scottsville, NY (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
An actuator ( ) for a fuel injector having a dual coil solenoid. The solenoid coils ( ) are connected in parallel and have windings that are wound in opposite directions. The actuator ( ) of the present invention defines three air gap surfaces ( ), one of which ( ) is located in the space shared between the two coils ( ). The shared air gap surface ( ) has a high flux density due to the additive nature of the magnetic forces between the oppositely wound coils ( ). The dual-coil solenoid of the actuator ( ) of the present invention creates a very high force and a low inductive load which results in fast injector response times.