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. 05, 1987
Filed:
Apr. 26, 1985
Shinji Okuda, Higashimatsuyama, JP;
Diesel Kiki Co., Ltd., Tokyo, JP;
Abstract
A fuel injection nozzle for injecting fuel into a diesel engine includes a nozzle holder having a hole defined therein in a direction transverse to the axis of the nozzle holder and opening into a spring chamber defined in the nozzle holder. An insulating member is fitted in the hole in a fluid-tight manner. In the spring chamber, there are disposed a spring seat remotely from a needle valve and supporting a spring for applying a spring force to close the needle valve, and a conductive body extending through the insulating member in a fluid-tight manner and having an end positioned between the spring seat and an inner wall surface of the nozzle holder. A pressure-sensitive element is fixed to the end of the conductive body and is actuated in response to the spring force applied thereto through the spring seat for producing an output signal which is fed out through the conductive body to thereby detect the timing of opening of the fuel injection nozzle. Alternatively, the electric resistance between the needle valve and the nozzle holder is detected through the conductive body to detect the timing of opening of the fuel injection nozzle.