EP 0636788 B1 19970305 - Volumetric piston pump driven by an alternating linear movement
Title (en)
Volumetric piston pump driven by an alternating linear movement
Title (de)
Kolbenförderpumpe durch eine hin- und hergehende Bewegung angetrieben
Title (fr)
Pompe volumétrique à piston animé d'un mouvement linéaire alternatif
Publication
Application
Priority
- FR 9309395 A 19930730
- FR 9404788 A 19940421
Abstract (en)
[origin: EP0636788A1] The invention relates to a positive-displacement piston pump, with an axial piston (3) driven in a reciprocating linear motion within the body (1) of the pump by a cam-type mechanism which is moved in rotation about an axis (14) coaxial with the longitudinal axis of the piston and which acts on one of the ends of the said piston while the latter is permanently urged in the opposite direction by an elastic means (8), this pump especially being noteworthy in that the cam-type mechanism includes a double cam (11) and that the end of the piston which points towards the said cam rests on a transverse small bar (7) which is fixed in rotation but guided in translation in the direction of motion of the piston, the said small bar resting on the cam (11) so that the latter, in combination with the elastic means (8), imparts a reciprocating rectilinear motion to the said small bar (7) and to the piston (3). <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP US)
F04B 1/12 (2013.01 - EP US); F04B 9/042 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0636788 A1 19950201; EP 0636788 B1 19970305; DE 69401864 D1 19970410; DE 69401864 T2 19970612; ES 2099553 T3 19970516; FR 2708674 A1 19950210; FR 2708674 B1 19960515; US 5472322 A 19951205
DOCDB simple family (application)
EP 94401699 A 19940725; DE 69401864 T 19940725; ES 94401699 T 19940725; FR 9404788 A 19940421; US 28108494 A 19940727