Global Patent Index - EP 0930434 A3

EP 0930434 A3 20000524 - Metering type electromagnetic pump

Title (en)

Metering type electromagnetic pump

Title (de)

Elektromagnetische Dosierpumpe

Title (fr)

Pompe doseuse électromagnétique

Publication

EP 0930434 A3 20000524 (EN)

Application

EP 99100306 A 19990111

Priority

JP 2281998 A 19980120

Abstract (en)

[origin: EP0930434A2] It is sought to accurately control the discharge rate of a pump according to the frequency of a current pulse output applied to an electromagnetic coil. The pump comprises an electromagnetic solenoid 13, a plunger 18 driven thereby, a check valve 2 disposed downstream the plunger 18 and driven by the electromagnetic solenoid 13, and an suction valve 17 provided in the plunger 18 and a discharge valve 8 provided in an inner yoke 6, the check valve 2 being opened when a current pulse output for energizing the electromagnetic solenoid 13 is turned on, thus causing a discharge stroke of the plunger 18. <IMAGE>

IPC 1-7

F04B 17/04; F04B 13/00

IPC 8 full level

F02M 51/04 (2006.01); F04B 13/00 (2006.01); F04B 17/04 (2006.01); F16K 31/06 (2006.01)

CPC (source: EP KR)

F02M 51/04 (2013.01 - EP); F04B 13/00 (2013.01 - EP); F04B 17/04 (2013.01 - KR); F04B 17/046 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0930434 A2 19990721; EP 0930434 A3 20000524; JP 4203138 B2 20081224; JP H11210618 A 19990803; KR 19990067962 A 19990825

DOCDB simple family (application)

EP 99100306 A 19990111; JP 2281998 A 19980120; KR 19990001351 A 19990119