A membrane pump (1) has a pump housing, a membrane (4), which is mounted to the pump housing and delimits a pump chamber (8) inside the pump housing, an inlet (5) and an outlet (6) for feeding medium into and out from the pump chamber, and an actuating member (7) for moving the membrane back and forth between a first and a second position. The membrane, the inlet and the outlet are arranged in a first part (2) of the pump housing, the first part being detachably connected to a second part (3) of the pump housing, in which the actuating member is arranged. The membrane is detachably connected to the actuating member by a magnetic coupling, which has a first magnetic coupling part (9) fixed to the membrane and a corresponding second magnetic coupling part (10) fixed to the actuating member.
A membrane pump (1) for pumping a medium has a pump housing (2), a membrane (3) mounted to the pump housing and delimiting a pump chamber (4) inside the pump housing (2) and an actuating device for moving the membrane (3) to and fro to expand and contract the pump chamber (4). In a first operating mode, the actuating device moves the membrane (3) in a frequency suitable for pumping the medium into and out of the pump chamber (4), and in a second operating mode, the actuating device moves the membrane (3) in a frequency in the audible frequency region.
F04B 49/00 - Commande des "machines", pompes ou installations de pompage ou mesures de sécurité les concernant non prévues dans les groupes ou présentant un intérêt autre que celui visé par ces groupes
A pumping system comprising a membrane pump (1) for pumping a medium into or out of a vessel (6), the membrane pump comprising an actuating member (13) for moving a membrane (3) in a first direction from a first end position to a second end position against the action of a spring (12), the membrane being movable in the opposite direction from the second end position to the first end position under the action of the spring. The pumping system comprises sensing means (14) for generating a measuring value representing the location of said first end position of the membrane (3), and processing means (17) for establishing a pressure value representing the pressure inside a vessel (6) connected to an inlet (5) or outlet (24) of a pump chamber (4), the processing means (17) being adapted to establish said pressure value based on said measuring value.
F04B 47/08 - Pompes ou installations de pompage spécialement adaptées pour élever un fluide à partir d'une grande profondeur, p. ex. pompes de puits dont les ensembles pompe-moteur sont placés à grande profondeur les moteurs étant actionnés par un fluide
B23P 17/00 - Opérations d'usinage non couvertes par une seule autre sous-classe ou un autre groupe de la présente sous-classe
F04B 43/02 - "Machines", pompes ou installations de pompage ayant des organes de travail flexibles ayant des organes flexibles du genre plat, p. ex. des diaphragmes
H02K 33/10 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits entraînés dans un sens par application d'énergie à un système à une seule bobine et ramenés par une force d'origine mécanique, p. ex. par des ressorts dans lesquels les mises sous tension et hors tension alternées du système à une seule bobine sont effectuées ou commandées par le mouvement des induits
F04B 43/04 - Pompes ayant un entraînement électrique
A membrane pump (1) comprising, a pump housing, a membrane (4), which is mounted to the pump housing and delimits a pump chamber (8) inside the pump housing, an inlet (5) and an outlet (6) for feeding medium into and out from the pump chamber, and actuating means (7) for moving the membrane back and forth between a first and a second position. The membrane, the inlet and the outlet are arranged in a first part (2) of the pump housing, the first part being detachably connected to a second part (3) of the pump housing, in which the actuating means is arranged. The membrane is detachably connected to the actuating means by means of a magnetic coupling, which comprises a first magnetic coupling part (9) fixed to the membrane and a corresponding second magnetic coupling part (10) fixed to the actuating means.
A pumping system comprising a membrane pump (1) for pumping a medium, the membrane pump comprising: -a pump housing (2), -a membrane (3), which is mounted to the pump housing and delimits a pump chamber (4) inside the pump housing, -actuating means for moving the membrane to and fro in order to expand and contract the pump chamber, wherein the actuating means are adapted to operate, in a first operating mode, to move the membrane in a frequency suitable for pumping a medium into and out of the pump chamber, and in a second operating mode, to move the membrane in a frequency in the audible frequency region.
F04B 43/04 - Pompes ayant un entraînement électrique
F04B 17/04 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques utilisant des solénoïdes
A pumping system comprising a membrane pump (1) for pumping a medium into or out of a vessel (6), the membrane pump comprising an actuating member (13) for moving a membrane (3) in a first direction from a first end position to a second end position against the action of a spring (12), the membrane being movable in the opposite direction from the second end position to the first end position under the action of the spring. The pumping system comprises sensing means (14) for generating a measuring value representing the location of said first end position of the membrane (3), and processing means (17) for establishing a pressure value representing the pressure inside a vessel (6) connected to an inlet (5) or outlet (24) of a pump chamber (4), the processing means (17) being adapted to establish said pressure value based on said measuring value.
F04B 43/04 - Pompes ayant un entraînement électrique
F04B 17/04 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques utilisant des solénoïdes
H01H 51/12 - Armature mobile entre deux positions limites de repos et se déplaçant dans deux directions à la suite de l'excitation de l'un ou de l'autre des deux électro-aimants sans emmagasinage d'énergie pour effectuer le mouvement de retour
H02K 33/12 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant avec des induits se déplaçant dans des directions opposées par alimentation alternée de systèmes à deux bobines
An electromagnetic driven membrane pump has a pump housing inside which at least one pump chamber (15) having at least one intake and outlet is formed and delimited between a gable (1) of the pump housing and at least one completely-sealed membrane (14) attached to a wall (4) of the pump housing and, in an axial direction of the pump housing, to a running axle (13) suspended in at least two separated suspensions in a longitudinal direction of the axle (13). At least one of the suspensions is composed of a flat spring (9) attached to the axle (13) in a radial direction out toward the wall (4) of the pump housing. The axle (13) is composed of magnetic material to be driven by a magnetic field from an electromagnet (7) for oscillation in its longitudinal direction and moving the membrane (14) in corresponding oscillating movement. The flat spring (9) is composed of an inner and at least one outer part, with the inner part attached to the axle (13) and the outer part(s) attached to the pump housing. These parts are connected with one another by two elastic legs, arranged at each side of the point where the spring is attached to the axle (13).
F04B 17/04 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci entraînées par des moteurs électriques utilisant des solénoïdes
H02K 33/00 - Moteurs avec un aimant, un induit ou un système de bobines à mouvement alternatif, oscillant ou vibrant
A control system for controlling electromagnetic pumps, such as electromagnetic driven membrane pumps, has at least one microprocessor and at least one sensor, the microprocessor controlling the power supply to at least one electromagnet whose changes in emitted magnetic field causes at least one moving part, directly or indirectly, to perform an oscillating pumping movement. The control system has at least one positioning sensor which senses the moving part's position in the electromagnetic driven pump. By use of the positioning sensor's measurements, the pump can be controlled with great accuracy. A method for controlling electromagnetic pumps is also provided.
F04B 17/00 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs particuliers qui les entraînent ou par leur adaptation à ceux-ci
