EP 0193788 B1 19910515 - METHOD OF CONTROLLING AN AMOUNT OF INJECTED FUEL
Title (en)
METHOD OF CONTROLLING AN AMOUNT OF INJECTED FUEL
Publication
Application
Priority
DE 3507853 A 19850306
Abstract (en)
[origin: EP0193788A2] A method of controlling an amount of injected fuel by means of a fuel injection pump for internal-combustion engines is proposed. The method serves to reduce the noises produced by a diesel engine during idling and at low partial load. The fuel injection pump comprises at least one pump plunger (3) producing the pressure for injection and delimiting a pump working space (6), and an electromagnetically actuable control device (20) which opens a relief channel (16) to a greater or lesser extent as a function of operating parameters (22, 23, 24) of the internal-combustion engine by virtue of an electronic control unit (21). The activation of the control device (20) during idling and in the low partial-load range is effected in such a way that the control device (20) does not completely close the relief channel (16), with the result that a prolongation of the injection duration is necessary. At speeds above this, the control device (20) is activated with a current which guarantees complete blockage of the relief channel (16) during injection. <IMAGE>
IPC 1-7
IPC 8 full level
F02D 1/02 (2006.01); F02D 41/38 (2006.01); F02D 41/40 (2006.01); F02M 41/12 (2006.01); F02M 45/00 (2006.01); F02M 59/34 (2006.01); F02M 59/36 (2006.01); F02B 3/06 (2006.01)
CPC (source: EP)
F02M 41/125 (2013.01); F02M 45/00 (2013.01); F02M 59/34 (2013.01); F02M 59/366 (2013.01); F02B 3/06 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0193788 A2 19860910; EP 0193788 A3 19890726; EP 0193788 B1 19910515; DE 3507853 A1 19860911; DE 3507853 C2 19930121; DE 3679217 D1 19910620; JP 2513624 B2 19960703; JP S61207832 A 19860916
DOCDB simple family (application)
EP 86102097 A 19860218; DE 3507853 A 19850306; DE 3679217 T 19860218; JP 4747586 A 19860306