EP 0014142 B1 19830921 - FUEL INJECTOR AND METHOD OF ELECTRONICALLY OPERATING A FUEL INJECTOR
Title (en)
FUEL INJECTOR AND METHOD OF ELECTRONICALLY OPERATING A FUEL INJECTOR
Publication
Application
Priority
- US 694879 A 19790125
- US 694979 A 19790125
Abstract (en)
[origin: EP0014142A1] A fuel injector (10) is provided for each cylinder of an internal combustion engine, the injector including an electronically operated control valve (146) disposed between supply passage (42) and a timing chamber (98) to control the admission of fuel into and out of the timing chamber. A primary pumping plunger (62) and a secondary plunger (90) are axially spaced within the central bore of the injection body, and a normally closed injection nozzle (14) is situated at one end of the injector body. A mechanical linkage (30) associated with the cam-shaft of the engine drives the primary pumping plunger (62) against the bias of a main spring (18). The timing chamber (98) is defined between the plungers (62, 90) and a metering chamber (128) is defined between the secondary plunger (90) and the nozzle (14). An electronic control unit responds to engine operating conditions, and delivers a timing and metering signal to the control valve (146) to close the valve and seal the timing chamber for a controlled period of time.
IPC 1-7
IPC 8 full level
F02M 51/00 (2006.01); F02M 57/02 (2006.01); F02M 59/30 (2006.01); F02M 59/32 (2006.01); F02M 59/36 (2006.01); F02B 3/06 (2006.01)
CPC (source: EP)
F02M 57/024 (2013.01); F02M 59/30 (2013.01); F02M 59/32 (2013.01); F02M 59/366 (2013.01); F02B 3/06 (2013.01)
Designated contracting state (EPC)
AT DE FR GB IT SE
DOCDB simple family (publication)
EP 0014142 A1 19800806; EP 0014142 B1 19830921; EP 0014142 B2 19890621; AU 535759 B2 19840405; AU 5401479 A 19800731; BR 8000300 A 19800930; DE 3064859 D1 19831027; ES 487024 A1 19800616; SU 1135433 A3 19850115; UA 5760 A1 19941229
DOCDB simple family (application)
EP 80400086 A 19800121; AU 5401479 A 19791219; BR 8000300 A 19800117; DE 3064859 T 19800121; ES 487024 A 19791218; SU 2868607 A 19800117; UA 2868607 A 19800117