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:
Dec. 19, 1989
Filed:
May. 17, 1989
Iwao Maruyama, Saitama, JP;
Hidetoshi Saitoh, Saitama, JP;
Diesel Kiki Co., Ltd., Tokyo, JP;
Abstract
A unit injector for fuel combustion is integrally structured with an injection pumping mechanism and an injection valve mechanism. A housing is fixedly united with an injection pumping part and an injection valve part, the injection pumping part being formed with a stepped insertion hole, and the injection valve part being formed with an oil path extending toward a nozzle body at an end thereof concentrically. A barrel has a hole for guiding a plunger, and fuel inlet and outlet ports, the shape and outer diameter of which are finishing-processed for coinciding with the insertion hole, and the barrel is shrunken in size by cooling and inserted into the insertion hole while it is cooled, and exactly fitted into the insertion hole when the shrinked barrel is recovered to the initial size by returning to the room temperature and supported at an inner diametered part and a stepped part.