Fuel injection system for internal combustion engine

Internal-combustion engines – Charge forming device – Fuel injection system

Patent

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Details

23953312, 239552, F02M 6106

Patent

active

047733748

ABSTRACT:
A fuel injector to be mounted on a branch of an engine intake manifold has a hollow body with an injection orifice therein and a valve member mounted slidably in the body and having a pintle extending from one end of the valve member and slidably received in and extending through the injection orifice. A sleeve member is mounted on the body to cover the injection orifice and defines a pintle-receiving space into which the forward end of the pintle extends. Communication apertures are formed in the outer end of the sleeve member to communicate the pintle receiving space with an engine intake passage. The total of the cross-sectional areas of the communication apertures is smaller than the cross-sectional area of the pintle-receiving space.

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patent: 4657189 (1987-04-01), Iwata et al.
Journal of Nippondenso Technical Disclosure No. 31-223, by Tomihiko Nagata Publ., Jul. 20, 1983-"Fuel Injector with Means for Changing Direction . . . ".
Journal of Nippondenso Technical Disclosure No. 33-064, by Kazuo Yamamoto Electro-Magnetic Fuel Injector, Publ. Jan. 15, 1984.

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