EP 0216774 A4 19870513 - LIQUID PUMP.
Title (en)
LIQUID PUMP.
Title (de)
PUMPE FÜR FLÜSSIGKEITEN.
Title (fr)
POMPE A LIQUIDES.
Publication
Application
Priority
AU PG581484 A 19840703
Abstract (en)
[origin: WO8600667A1] In a two-stage fuel pump (14) liquid fuel passes via gear pump (24) and radial piston pump (28) to two similar metering fuel distributors (32), (34). Delivery from piston pump (28) is variable by means of an eccentric piston drive arrangement such that maximum delivery occurs under reduced speed conditions, such as engine cranking or heavy load. Distribution (32), (34) comprise hollow cylindrical members (230) in which rotate spindles (234) driven from gear pump (24). The spindles (234) have cavities (300), (302) which periodically align with an arrangement of ports through the walls of members (230). As spindles (234) rotate, fuel is alternately received into and delivered from cavities (300), (302) metering and delivery being effected by a slidable pin (304) which axially reciprocates through spindle (234) to intrude a controllable variable amount into cavities (300), (302) under alternately applied fuel pressure to effect variable fuel displacement. Provision is made for varying the timing of fuel displacement by variation of the angular displacement of the spindle (234) of the distributor (32) relative to its drive shaft (90) from the gear pump (24).
IPC 1-7
F02M 39/02; F02M 41/06; F02M 59/06; F02M 59/12; F02M 59/16; F02M 59/30
IPC 8 full level
F02M 41/06 (2006.01); F02M 55/00 (2006.01); F02M 59/02 (2006.01); F02M 59/06 (2006.01); F02M 59/30 (2006.01); F02M 63/02 (2006.01); F02M 69/12 (2006.01)
CPC (source: EP)
F02M 41/06 (2013.01); F02M 55/00 (2013.01); F02M 59/06 (2013.01); F02M 59/30 (2013.01); F02M 63/02 (2013.01); F02M 69/12 (2013.01)
Citation (search report)
- [X] US 3077872 A 19630219 - ALLEN ROBERT L
- [X] US 3093079 A 19630611 - GRAHAM GEORGE C
- [A] DE 1020488 B 19571205 - DAIMLER BENZ AG
- [A] GB 729483 A 19550504 - LUCAS INDUSTRIES LTD
- See references of WO 8600667A1
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
WO 8600667 A1 19860130; CA 1260758 A 19890926; EP 0216774 A1 19870408; EP 0216774 A4 19870513; GB 2184793 A 19870701; GB 2184793 B 19890524; GB 8630829 D0 19870204; JP S61502972 A 19861218
DOCDB simple family (application)
AU 8500147 W 19850702; CA 486246 A 19850703; EP 85903182 A 19850702; GB 8630829 A 19850702; JP 50297985 A 19850702