EP 0633398 B1 19970709 - Fuel injection pump for internal combustion engines
Title (en)
Fuel injection pump for internal combustion engines
Title (de)
Kraftstoffeinspritzpumpe für Brennkraftmaschinen
Title (fr)
Pompe à injection de combustible pour moteurs à combustion interne
Publication
Application
Priority
DE 4315646 A 19930511
Abstract (en)
[origin: JPH06330831A] PURPOSE: To dispense with a return guide for a pump plunger and to narrower a suction chamber in a fuel injection pump for an internal combustion engine. CONSTITUTION: A rotation axial line of a pump cylinder 7 is arranged in a radius directional plane 8 of a rotational driven distributor 4. The distributor 4 is guided inside a cylinder liner 3 fitted inside a casing of a fuel injection pump, and a cam ring 18 surrounding the distributor 4 is arranged in the radius directional plane 8 including the rotation axial line of the pump cylinder 7. The cam ring 18 is provided with a cam face 17 directed to a pump plunger 6 protruded from the pump cylinder 7, and a roller shaft 15 is arranged between the cam face 17 and the pump plunger 6. As a fuel pressure inside a suction chamber 12 is always higher than a liquid pressure in a driving device chamber 2 during an operation of a fuel injection pump, the pump plunger 6 follows the cam face 17 according to a pressure difference between a the suction chamber and the driving device chamber.
IPC 1-7
IPC 8 full level
F02M 41/14 (2006.01)
CPC (source: EP US)
F02M 41/1405 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 4315646 A1 19941117; DE 59403283 D1 19970814; EP 0633398 A1 19950111; EP 0633398 B1 19970709; JP H06330831 A 19941129; US 5383436 A 19950124
DOCDB simple family (application)
DE 4315646 A 19930511; DE 59403283 T 19940413; EP 94105647 A 19940413; JP 9633294 A 19940510; US 20195894 A 19940225