EP 0678166 B1 19980812 - CONTROL DEVICE FOR A VARIABLE INTAKE VOLUME PUMP
Title (en)
CONTROL DEVICE FOR A VARIABLE INTAKE VOLUME PUMP
Title (de)
STEUEREINRICHTUNG FÜR EINE FÜLLGRAD-VERSTELLPUMPE
Title (fr)
DISPOSITIF DE COMMANDE POUR UNE POMPE A VOLUME DE REMPLISSAGE VARIABLE
Publication
Application
Priority
- CA 2151518 A 19950607
- CH 9400215 W 19941107
- CH 336793 A 19931108
Abstract (en)
[origin: US5701873A] PCT No. PCT/CH94/00215 Sec. 371 Date Jul. 10, 1995 Sec. 102(e) Date Jul. 10, 1995 PCT Filed Nov. 7, 1994 PCT Pub. No. WO95/13474 PCT Pub. Date May 18, 1995A control device for a filling-ratio adjusting pump with at least one displacement space works on the suction-throttle principle with a positive variation in volume of the displacement space or displacement spaces and is intended inter alia particularly for common-rail diesel injection systems. It allows an exact, precise and highly dynamic control of the filling-ratio adjusting pump at low outlay, without the system being impaired by undesirable cavitation. Located on the suction side of the pump is at least one throttling 2/2-way valve (21, 21a, 21b; 134; 51, 52, 53, 54; 81; 103) actuated by pressure difference. Either such a 2/2-way valve can be used for a group of displacement spaces or for the entire pump or a respective valve of this type can be inserted in front of each individual displacement space. The pressure-difference control of the or each 2/2-way valve takes place via an adjusting device (27; 150) which is arranged on the inflow side of the 2/2-way valve and which is designed either as a throttling valve or as a flow-regulating valve.
IPC 1-7
IPC 8 full level
F02M 47/00 (2006.01); F02M 59/34 (2006.01); F02M 59/36 (2006.01); F02M 59/44 (2006.01); F02M 63/02 (2006.01); F04B 49/00 (2006.01); F04B 49/22 (2006.01); F02B 3/06 (2006.01); F02D 41/38 (2006.01)
CPC (source: EP US)
F02M 59/34 (2013.01 - EP US); F02M 59/365 (2013.01 - EP US); F02M 63/0225 (2013.01 - EP US); F04B 49/225 (2013.01 - EP US); F02B 3/06 (2013.01 - EP US); F02D 41/3809 (2013.01 - EP US); F04B 2205/062 (2013.01 - EP US); F04B 2205/08 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IE IT LI NL SE
DOCDB simple family (publication)
US 5701873 A 19971230; AT E169720 T1 19980815; CA 2151518 A1 19961208; CN 1082143 C 20020403; CN 1116441 A 19960207; DE 59406680 D1 19980917; EP 0678166 A1 19951025; EP 0678166 B1 19980812; ES 2120076 T3 19981016; JP 3747061 B2 20060222; JP H08505680 A 19960618; WO 9513474 A1 19950518
DOCDB simple family (application)
US 46485695 A 19950710; AT 94930902 T 19941107; CA 2151518 A 19950607; CH 9400215 W 19941107; CN 94190910 A 19941107; DE 59406680 T 19941107; EP 94930902 A 19941107; ES 94930902 T 19941107; JP 51350995 A 19941107