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:
Oct. 09, 2007
Filed:
Mar. 21, 2006
Kazuaki Koyanagi, Obu, JP;
Hiroshi Kawazoe, Obu, JP;
Kazuaki Koyanagi, Obu, JP;
Hiroshi Kawazoe, Obu, JP;
Aisan Kogyo Kabushiki Kaisha, Aichi-ken, JP;
Abstract
A fuel injectormay comprise a valve bodyhaving a fuel path, a valve seatfixed to a downstream end of the valve body, and a valvethat opens and closes a fuel injection hole of the valve seat. The valve may be housed within the valve body in a manner allowing sliding. An armaturemay be attached to an upstream end of the valve, and a valve closing elementmay be attached to a downstream end of the valve. A coremay be disposed at an upstream side of the armature. A downstream end surface of the corefaces an upstream end surface of the armature. When the valveopens the fuel injection hole, the downstream end surface of the coremakes contact with the upstream end surface of the armature. A non-magnetic ringmay be disposed at an outer circumference side of the armatureand the core. The non-magnetic ringmay extend as far as an upstream side of the solenoid coil, and the solenoid coilmay be wound directly around an outer circumference of the non-magnetic ring