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:
Nov. 22, 1983
Filed:
Oct. 02, 1981
Yoshiyuki Kago, Aichi, JP;
Sigeyuki Akita, Okazaki, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
A fuel injection timing detecting apparatus for Diesel engines detects the displacement of a preliminarily-magnetized pressure pin which is contained in the body of a fuel injection nozzle of a Diesel engine to be moved by the pressure of pressurized fuel supply against the spring force of a pressure spring engaged with the pressure pin. The apparatus includes a magnetic sensing device externally attached to the body of the fuel injection nozzle for sensing a magnetic variation caused by the movement of the pressure pin thereby to detect the displacement of the pressure pin, and a signal processing circuit for amplifying and processing the output signal of the magnetic sensing device, whereby the apparatus is applicable to conventional fuel injection nozzles of Diesel engines without any need to modify the nozzles and makes it possible to detect easily and accurately fuel injection timings of the fuel injection nozzles.