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:
May. 25, 1982
Filed:
Jun. 04, 1980
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A magnetic type fuel injection valve comprises a stationary core magnetized upon energization of a magnetic coil, a movable core arranged in an axially opposed relation with the stationary core to be movable toward and away from the stationary core in response to the magnetization and demagnetization of the stationary core, and a needle valve connected to the movable core for controlling a fuel injection through a fuel injection port. The movable core is formed with a bottomed axial bore open to that end of the movable core which is remote from the stationary core. Into the bottomed axial bore is tightly fitted an end portion of the needle valve which is defined between one end face of the needle valve and a stepped portion thereof which is formed at a location spaced from the one end face and having a surface facing in an opposite direction from the one end face. A wall of the movable core which surrounds the surface of the stepped portion is calked onto the latter surface to securely connect the needle valve to the movable core.