EP 0686235 A1 19951213 - FLUID DOSING DEVICE
Title (en)
FLUID DOSING DEVICE
Title (de)
ZUMESSVORRICHTUNG FÜR FLUIDE
Title (fr)
DISPOSITIF DE DOSAGE DE FLUIDES
Publication
Application
Priority
- DE 9400212 W 19940228
- DE 4306073 A 19930226
Abstract (en)
[origin: DE4306073C1] The metering system has a chamber (KA1) formed by the large dia. piston (DK) and the cylinder bore. A second chamber (KA2) is formed by a bore in the large dia. piston (DK) and the small dia. piston (HK) movable in the bore of the large dia. piston. The first and the second chambers (KA1, KA2) are filled with hydraulic fluid standing under pressure. A pressure storage (SP) is provided for suppressing the cavitation effects. The actuator (P) can be a piezoelectric, magneto- or electrostrictive powered unit. ADVANTAGE - Exact dosing of smallest fuel amounts for suction air. Facilitates extremely short opening and closing times of 0.1 to 0.2 ms, valve needle is not affected by temp. fluctuations.
IPC 1-7
IPC 8 full level
F02M 51/06 (2006.01); F02M 69/52 (2006.01); F16K 31/00 (2006.01); G01F 13/00 (2006.01)
CPC (source: EP)
F02M 51/0603 (2013.01); F16K 31/007 (2013.01); G01F 13/006 (2013.01); F02M 2200/703 (2013.01)
Citation (search report)
See references of WO 9419597A1
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
DE 4306073 C1 19940601; EP 0686235 A1 19951213; JP H08506883 A 19960723; WO 9419597 A1 19940901
DOCDB simple family (application)
DE 4306073 A 19930226; DE 9400212 W 19940228; EP 94908270 A 19940228; JP 51856194 A 19940228