EP 0402014 B1 19930721 - FUEL INJECTION PUMPING APPARATUS
Title (en)
FUEL INJECTION PUMPING APPARATUS
Publication
Application
Priority
GB 8912823 A 19890603
Abstract (en)
[origin: EP0402014A2] A fuel pumping apparatus for supplying fuel to an internal combustion engine has an injection pump 10 supplied with fuel by a low pressure feed pump 14 through an adjustable throttle 16. A fluid pressure operable piston 12 is movable against the action of a spring 13 to control the timing of delivery of fuel by the injection pump. Fuel under pressure is applied to the piston through a first fixed orifice 20 from the feed pump. A second fixed orifice 22 and a variable orifice 23 are connected in series between a drain and the downstream side of the first fixed orifice. In parallel with the first fixed orifice is a constant pressure drop valve 26 which maintains the pressure drops across the first fixed orifice substantially constant when the pressure drop has risen to a predetermined value.
IPC 1-7
IPC 8 full level
F02M 59/00 (2006.01); F02D 1/18 (2006.01); F02M 41/14 (2006.01); F04B 23/04 (2006.01)
CPC (source: EP)
F02D 1/183 (2013.01); F02M 41/1416 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 0402014 A2 19901212; EP 0402014 A3 19901219; EP 0402014 B1 19930721; DE 69002282 D1 19930826; DE 69002282 T2 19931118; ES 2043278 T3 19931216; GB 8912823 D0 19890719; JP H0378561 A 19910403
DOCDB simple family (application)
EP 90305692 A 19900525; DE 69002282 T 19900525; ES 90305692 T 19900525; GB 8912823 A 19890603; JP 14424290 A 19900601