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US 2018/0128255 A1Published application
Double-membrane pump and method for operation of such a double-membrane pump
AssigneeLutz Holding GmbH
InventorHeinz E. LUTZ
Life of this patent
Estimating the term…
Abstract
A double-membrane pump has a pump housing and at least a first electromagnet associated with the pump housing. Magnet action elements that are ferromagnetic or permanent-magnetic elements or at least a second electromagnet associated with first and second membranes are alternately attracted or repelled by the first electromagnet, in contact-free manner. The ferromagnetic or permanent-magnetic elements may be metal bodies connected with the membranes or flexible metal layers associated with the membranes. The first-electromagnet may have first and second magnetic coils that can be operated independently of one another and that can influence the first and second membranes independently of one another.
Claims10
A double-membrane pump comprising:
- (a) a pump housing having first and second parallel line sections and a magnet chamber, wherein the first parallel line section has a first membrane chamber enclosed between first and second ball valves that close in a first flow direction and divided into a first air chamber by a first membrane in liquid-tight manner and the second parallel line section has a second membrane chamber enclosed between third and fourth ball valves that close in a second flow direction and divided into a second air chamber by a second membrane in liquid-tight manner, and wherein the magnet chamber is disposed between the first and second air chambers;
- and
- (b) at least a first electromagnet associated with the pump housing in the magnet chamber having a region of action and magnet action elements connected with the first and second membranes and disposed so as to move between respective first and second movement end points;
- wherein the magnet action elements are ferromagnetic elements, permanent-magnetic elements, or at least a second electromagnet associated with the first and second membranes,
- wherein the magnet action elements are alternately attracted or repelled by the first electromagnet in contact-free manner, and
- wherein the ferromagnetic elements or permanent-magnetic elements are metal bodies connected with the first and second membranes or flexible metal layers associated with the first and second membranes.
3 more elements
A double-membrane pump comprising:
- (a) a pump housing having first and second parallel line sections and a magnet chamber, wherein the first parallel line section has a first membrane chamber enclosed between first and second ball valves that close in a first flow direction and divided into a first air chamber by a first membrane in liquid-tight manner and the second parallel line section has a second membrane chamber enclosed between third and fourth ball valves that close in a second flow direction and divided into a second air chamber by a second membrane in liquid-tight manner, and wherein the magnet chamber is disposed between the first and second air chambers;
- and
- (b) at least a first electromagnet associated with the pump housing in the magnet chamber having a region of action and magnet action elements connected with the first and second membranes and disposed so as to move between respective first and second movement end points;
- wherein the magnet action elements are ferromagnetic elements, permanent-magnetic elements, or at least a second electromagnet associated with the first and second membranes,
- wherein the magnet action elements are alternately attracted or repelled by the first electromagnet in contact-free manner, and
- wherein the first electromagnet comprises first and second magnetic coils operable independently of one another and configured to influence the first and second membranes independently of one another.
3 more elements
A method for operation of a double-membrane pump, the method comprising
- providing a double-membrane pump comprising:
- (a) a pump housing having first and second parallel line sections and a magnet chamber, wherein the first parallel line section has a first membrane chamber enclosed between first and second ball valves that close in a first flow direction and divided into a first air chamber by a first membrane in liquid-tight manner and the second parallel line section has a second membrane chamber enclosed between third and fourth ball valves that close in a second flow direction and divided into a second air chamber by a second membrane in liquid-tight manner, and wherein the magnet chamber is disposed between the first and second air chambers;
- and
- (b) at least a first electromagnet associated with the pump housing in the magnet chamber having a region of action and magnet action elements connected with the first and second membranes and disposed so as to move between respective first and second movement end points;
- wherein the magnet action elements are ferromagnetic elements, permanent-magnetic elements, or at least a second electromagnet associated with the first and second membranes, wherein the magnet action elements are alternately attracted or repelled by the first electromagnet in contact-free manner, and wherein the ferromagnetic elements or permanent-magnetic elements are metal bodies connected with the first and second membranes or flexible metal layers associated with the first and second membranes;
- and
- moving the magnet action elements connected with the first and second membranes asynchronously by the first electromagnet.
4 more elements
Dependencies are inferred from the claim text.