EP 0336925 B1 19911218 - INJECTOR-PUMP UNIT FOR DIESEL ENGINES, INCLUDING A CONTROL-SLEEVE
Title (en)
INJECTOR-PUMP UNIT FOR DIESEL ENGINES, INCLUDING A CONTROL-SLEEVE
Publication
Application
Priority
DE 3811846 A 19880408
Abstract (en)
[origin: EP0336925A1] The invention relates to an injector-pump unit for diesel engines, in which an injection-pump element having a pump plunger (1) driven by a camshaft and having an element bushing is combined with an injection nozzle to form a unit which is to be assigned to in each case one engine cylinder. The pump plunger (1) is surrounded by an axially displaceable control sleeve (11) which controls the beginning of injection as a function of its axial position. A regulating member (15) is guided on the pump-element body (10) in such a way as to be rotatable relative to the control sleeve (11) as a function of an operating parameter of the engine. The control sleeve (11) or the regulating member (15) has a track (25, 46, 50, 52) extending in a circle in plan view, which at least in part encloses an angle of inclination with a plane normal to the axis of the pump plunger (1). Interacting with this track is a guide element (23, 47, 49, 53), which is rigidly connected to the respective other part (namely the regulating member (15) or the control sleeve (11)). Due to the interaction of this guide element with the track, the control sleeve (11) is raised or lowered upon relative rotation and hence the beginning of injection controlled. The track (25, 46, 50, 52) can also have angles of inclination of varying size and/or direction in successive sections. <IMAGE>
IPC 1-7
IPC 8 full level
F02M 57/02 (2006.01); F02M 59/24 (2006.01); F02B 3/06 (2006.01)
CPC (source: EP US)
F02M 57/02 (2013.01 - EP US); F02M 59/24 (2013.01 - EP US); F02M 59/246 (2013.01 - EP US); F02B 3/06 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0336925 A1 19891011; EP 0336925 B1 19911218; AT E70596 T1 19920115; DE 3811846 A1 19891019; DE 3811846 C2 19910606; DE 58900575 D1 19920130; JP H01301954 A 19891206; US 4960241 A 19901002
DOCDB simple family (application)
EP 89890092 A 19890405; AT 89890092 T 19890405; DE 3811846 A 19880408; DE 58900575 T 19890405; JP 8955889 A 19890407; US 33272289 A 19890404