EP 0372562 B1 19921104 - FUEL INJECTION DEVICE
Title (en)
FUEL INJECTION DEVICE
Publication
Application
Priority
DE 3841462 A 19881209
Abstract (en)
[origin: EP0372562A1] The invention has the object of improving a known fuel injection device, which comprises an injection pump element with an electromagnetically actuated control valve body, mounted in the latter, for controlling the beginning of delivery and the delivery quantity, in such a way that the injection pump element and the control valve are individually exchangeable and that the control valve body moves onto its seat without rebound. <??>The solution comprises a control valve (2) which is arranged with clearance in a stepped hole (19) of a plunger sleeve (5) and is mounted in sealing elements (20). The freedom from rebound is achieved by matching a minimum spacing (46) between an armature plate (30) and an electromagnetic regulating device (7), the armature plate (30) being situated in a fluid-filled damping space (33) and the minimum spacing (46) being optimised as a function of the mass of the moving parts of the control valve (2), the spring stiffness of a control valve seat (25), the geometry of an armature plate (30) and the viscosity of the fuel in the operating temperature range. <??>The invention is suitable for diesel engines. <IMAGE>
IPC 1-7
IPC 8 full level
F02M 59/36 (2006.01); F02M 59/46 (2006.01); F02M 59/48 (2006.01); F02B 3/06 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP US)
F02M 59/366 (2013.01 - EP US); F02M 59/466 (2013.01 - EP US); F02M 59/48 (2013.01 - EP US); F02B 3/06 (2013.01 - EP US); F02M 2200/304 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT NL
DOCDB simple family (publication)
EP 0372562 A1 19900613; EP 0372562 B1 19921104; AT E82043 T1 19921115; DE 3841462 A1 19900613; DE 3841462 C2 19960530; DE 58902618 D1 19921210; US 5106019 A 19920421
DOCDB simple family (application)
EP 89122631 A 19891208; AT 89122631 T 19891208; DE 3841462 A 19881209; DE 58902618 T 19891208; US 73783991 A 19910729