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:
Jan. 13, 1981
Filed:
Apr. 04, 1978
Nippon Soken, Inc., Nishio, JP;
Abstract
A metering and distribution device for a fuel injection system of an internal combustion engine includes a housing with a fuel inlet port connected to a fuel pump and a circumferential row of fuel outlet ports respectively connected to fuel injectors for respective engine cylinders. A rotor, rotatably mounted in the housing, is provided with an orifice and rotates in a timed manner with the engine. A control member is telescopically mounted on the rotor and moves axially thereon in accordance with variations in the flow rate of intake air and has a circumferential row of orifices equal to the fuel ports and cylinders. The inner member, whether the rotor or control member, has an axially extending fuel passage connected to the inlet port and the rotor's rotation moves the rotor's orifice into overlapping communication with successive orifices in the control member and thus to fuel outlet ports and respective cylinders. The angle of the rotor's rotation during which communication between the rotor's orifice and each control member orifice lasts is varied in accordance with variations in the flow rate of engine intake air thereby accurately metering fuel charges to respective cylinders. Orifice members of substantially the same flow characteristic are removably mounted in respective fuel outlet ports to provide fixed restriction orifices which have a fuel flow cross-sectional area smaller than the area over which the orifices in the rotor and the control member are communicated, whereby the amount of each fuel charge to the engine is solely dependent upon the duration of the communication between the orifices in the rotor and the control member.