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:
Jul. 31, 1984
Filed:
Jul. 06, 1981
Takeo Funada, Higashi Matsuyama, JP;
Diesel Kiki Company, Ltd., Tokyo, JP;
Abstract
A source of high pressure fuel supply is hydraulically connected with a fuel tank or reservoir through a low pressure supply pump. Pressurized fuel from the high pressure fuel supply source is communicated to an injector which comprises a body having an axial bore therein and a plunger axially slidably received in the bore of the injector body. The injector body has a fuel induction passageway to which the pressurized fuel is communicated from the supply source while the plunger has a passageway means therein which is communicated with or communicable with the fuel injection passageway at one end thereof. Upon a reciprocal movement of the plunger, the passageway means at the other end is brought into or out of communication with a nozzle hole formed in the injector body by a controllable amount and duration thereby starting or terminating a controlled rate of injection of the pressurized fuel into an engine. The plunger is made up of first and second plunger parts which are connected together with the intermediary of a seal member. An isolation means formed as at least one seal ring is attached to a lower end portion of the plunger.