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:
Mar. 31, 1987
Filed:
Feb. 19, 1985
Nippondenso Co., Ltd., Kariya, JP;
Abstract
A fuel injection device is disclosed, which includes a body having first and second bores coupled to each other in series. A delivering plunger is fitted in the first bore, so that it can slide, to define a delivering pump chamber therein. Fuel under a constant pressure is supplied to the delivering pump chamber through a control passage, on which an electromagnetic valve is provided for opening and closing it. An injection plunger is fitted in the second bore, so that it can slide, to define in the second bore a chamber linking the delivering pump chamber and an injection pump chamber. Fuel under a pressure lower than the pressure of fuel in the delivering pump chamber is supplied to the injection pump chamber, which is hydraulically coupled to an injection nozzle.