EP 1435456 B1 20060621 - Hydraulic Pump
Title (en)
Hydraulic Pump
Title (de)
Hydraulische Pumpe
Title (fr)
Pompe hydraulique
Publication
Application
Priority
GB 0228559 A 20021206
Abstract (en)
[origin: EP1435456A2] A sinusoidal hydraulic pump that is particularly suitable for use as a high pressure pump for a fuel injection system of a compression ignition engine. The pump includes first and second plungers, a filling plunger (110) and a delivery plunger (112), each of which is reciprocable within a respective bore (120, 122) provided in a pump housing (124) under the influence of a respective cam (114, 116) mounted upon a common cam shaft (118). The bores (120, 122) communicate with each other at their uppermost ends (in the orientation shown) and define, together with end surfaces of the filling and delivery plungers (110, 112), a pump chamber (126) for receiving fuel through a pump inlet port (130) provided in a wall of the pump housing (124). The filling plunger (110) cooperates with the inlet port (130) to provide a means for controlling fuel flow into the pump chamber (126) from a low pressure fuel supply. A delivery port (132) is also provided in the pump housing (124) in the region of the bore (122), and the outer surface of the delivery plunger (112) cooperates with the delivery port (132) to provide a means for controlling the delivery of pressurised fuel from the pump chamber (126) to a high pressure fuel volume. <IMAGE>
IPC 8 full level
F04B 1/04 (2006.01); F04B 7/04 (2006.01); F04B 49/12 (2006.01)
CPC (source: EP US)
F04B 1/0408 (2013.01 - EP US); F04B 1/06 (2013.01 - EP US); F04B 7/04 (2013.01 - EP); F04B 49/121 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1435456 A2 20040707; EP 1435456 A3 20050511; EP 1435456 B1 20060621; AT E331139 T1 20060715; DE 60306319 D1 20060803; DE 60306319 T2 20070614; GB 0228559 D0 20030115
DOCDB simple family (application)
EP 03257660 A 20031205; AT 03257660 T 20031205; DE 60306319 T 20031205; GB 0228559 A 20021206