Global Patent Index - EP 0068434 B1

EP 0068434 B1 19850918 - HIGH PRESSURE INJECTION SYSTEM WITH ULTRASONIC ATOMIZATION

Title (en)

HIGH PRESSURE INJECTION SYSTEM WITH ULTRASONIC ATOMIZATION

Publication

EP 0068434 B1 19850918 (DE)

Application

EP 82105522 A 19820623

Priority

DE 3124854 A 19810624

Abstract (en)

[origin: US4466571A] The invention relates to a high-pressure injection system for delivering and atomizing liquids by means of ultrasonic energy and, more in particular, to a fuel injection system for diesel engines. Said system is operated in conjunction with electronic control means. The injection system comprises a housing defining a pumping chamber into which there extends the free end of an operating or pumping plunger adapted to be actuated by a vibrator. A slide valve is provided which extends through said pumping chamber and which is actuated by means of another vibrator. Together with a suction aperture and a discharge aperture, said slide valve defines a suction valve and a discharge valve, respectively, of the injection system. Under normal conditions, the vibrators associated with said plunger and said slide valve are operated in such a way that there exists a phase difference of 90 DEG therebetween, with the result that during a suction stroke of said plunger said discharge valve is maintained closed whereas said suction valve is open, and that, during a delivery stroke of said plunger, said discharge valve is opened whereas said suction valve is maintained closed. In a gap formed around said discharge valve the fuel is atomized to a high degree during the delivery stroke of said plunger.

IPC 1-7

F02M 51/00

IPC 8 full level

B05B 17/06 (2006.01); F02M 45/10 (2006.01); F02M 51/00 (2006.01); F02M 57/02 (2006.01); F23D 11/34 (2006.01); F02B 1/04 (2006.01); F02B 3/06 (2006.01); F02M 63/00 (2006.01)

CPC (source: EP US)

F02M 45/10 (2013.01 - EP US); F02M 51/00 (2013.01 - EP US); F02M 57/027 (2013.01 - EP US); F02M 69/041 (2013.01 - EP US); F02B 1/04 (2013.01 - EP US); F02B 3/06 (2013.01 - EP US); F02M 2200/21 (2013.01 - EP US)

Citation (examination)

Designated contracting state (EPC)

FR GB IT SE

DOCDB simple family (publication)

EP 0068434 A1 19830105; EP 0068434 B1 19850918; DE 3124854 A1 19830113; DE 3124854 C2 19850314; JP S588571 A 19830118; US 4466571 A 19840821

DOCDB simple family (application)

EP 82105522 A 19820623; DE 3124854 A 19810624; JP 10908182 A 19820624; US 39096182 A 19820622