EP 1044329 A1 20001018 - PUMP ACTUATED BY AN ELECTRODYNAMIC TRANSDUCER AND METHOD FOR MAKING SUCH A PUMP
Title (en)
PUMP ACTUATED BY AN ELECTRODYNAMIC TRANSDUCER AND METHOD FOR MAKING SUCH A PUMP
Title (de)
MITTELSELEKTRODYNAMISCHEM WANDLER ERREGTE PUMPE SOWIE VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
POMPE ACTIONNEE PAR UN TRANSDUCTEUR ELECTRODYNAMIQUE ET PROCEDE DE FABRICATION D'UNE TELLE POMPE
Publication
Application
Priority
- FR 9802583 W 19981201
- FR 9715445 A 19971202
Abstract (en)
[origin: FR2771782A1] The invention concerns a vacuum pump element with liquid discharge rate and pressure comprising means (21, 22) for forced circulation of the liquid by an electrodynamic transducer mobile in translation (40) consisting of a piston (41) engaged in an axial bore (13) of a fixed body (10), the latter comprising a magnetic circuit (30) with reduced air gap (34) and the mobile element comprising in particular an electric coil (43) fixed to at least a second part (41) to be controlled in reciprocating rectilinear displacement and engaged in the air gap so as to cause the mobile element to move in a reciprocating translation motion. The invention is characterised in that the mobile element (40) comprises a linking part (45) hydrodynamic in shape making the second part (41) integral with the coil (43).
IPC 1-7
IPC 8 full level
F02M 37/08 (2006.01); F02M 51/04 (2006.01); F02M 69/04 (2006.01); F04B 17/04 (2006.01); F04B 53/14 (2006.01); H04R 31/00 (2006.01)
CPC (source: EP)
F02M 37/08 (2013.01); F02M 51/04 (2013.01); F02M 69/045 (2013.01); F04B 17/042 (2013.01); F04B 17/046 (2013.01); F04B 53/14 (2013.01); F05C 2225/00 (2013.01)
Citation (search report)
See references of WO 9928626A1
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
FR 2771782 A1 19990604; FR 2771782 B1 20000107; EP 1044329 A1 20001018; WO 9928626 A1 19990610
DOCDB simple family (application)
FR 9715445 A 19971202; EP 98958292 A 19981201; FR 9802583 W 19981201