Title:
【発明の名称】ポンプノズルにおける予噴射発生装置
Document Type and Number:
Japanese Patent JP2663969
Kind Code:
B2
Abstract:
In an apparatus for generating pre-injection quantities in unit fuel injectors for Diesel engines, including a pre-injection slide that generates a pronounced pressure intensification for a pre-injection in a pressure chamber closed off with respect to the high-pressure side and opens towards the injection line is slidably supported in a guide bore. The pre-injection slide is exposed to the injection pressure of an element chamber in such a way that after the execution of a partial stroke, which is responsible for the pre-injection quantity, upon further movement the pre-injection pressure chamber is opened toward the element chamber and thereby relieved, and by the ensuing movement of the pre-injection slide until the end of the stroke, a pre-determinable capacity that enables an injection pause is formed. A valve which is supported inside the pre-injection slide is under the control of a magnetic valve associated with the unit fuel injector and provides for the filling of the pre-injection pressure chamber forms selectively actuatable shutoff control for the pre-injection.
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Inventors:
UARUTAA EEGURAA
Application Number:
JP21657487A
Publication Date:
October 15, 1997
Filing Date:
September 01, 1987
Export Citation:
Assignee:
ROOBERUTO BOTSUSHU GMBH
International Classes:
F02M45/06; F02M45/04; F02M45/08; F02M57/02; F02M59/36; F02B3/06; (IPC1-7): F02M45/08
Attorney, Agent or Firm:
Toshio Yano (1 outside)