Magnetic displacement pump and compressor
AssigneeHoneywell International Inc.
InventorWei Yang
Life of this patent
Estimating the term…
Abstract
A device for pumping and compressing fluids, particularly in micro-liter quantities. First and second polarized cylindrical magnets are mounted in a cylinder with an inlet and an outlet port. The first magnet is adapted to rotate on the axis of the cylinder and has a fixed longitudinal position on that axis. The second magnet is free to move longitudinally but kept from any rotational movement, as a piston in the cylinder. The inlet port is open when the piston magnet is repelled by the rotor magnet's polarity and the outlet is open when the piston magnet is attracted by the rotor magnet's polarity as it rotates.
Claims20
A device for pumping and compressing fluids, comprising:
- first and second diametrically polarized cylindrical magnets such that the respective polarities attract or repel depending on the relative position thereof;
- a cylinder having an axis mounting said first and second polarized cylindrical magnets, said magnets facing each other and being centered on said cylinder axis;
- an inlet port and an outlet port in said cylinder;
- said first magnet being a rotor magnet adapted to rotate on said axis of said cylinder and fixedly restrained on a longitudinal position on said axis;
- said second magnet being a piston magnet adapted to move longitudinally along said axis in said cylinder toward or away from said rotor magnet, said piston magnet being kept from rotational movement;
- said inlet port being positioned to be open when said piston magnet is repelled by the mutual polarity of said magnets and said outlet port is positioned to be open when said piston magnet is attracted by the mutual polarity of said magnets as said rotor magnet rotates.
A device for pumping and compressing fluids, comprising:
- first and second diametrically polarized cylindrical magnet means for movement when the respective polarities attract or repel depending on the relative position thereof;
- cylinder means having an axis for mounting said first and second polarized cylindrical magnet means, said magnet means facing each other and being centered on said cylinder means axis;
- inlet port means and outlet port means in said cylinder for introducing and expelling fluids between said magnet means;
- said first magnet means being a rotor magnet means for rotation on said axis of said cylinder means and fixedly restrained on a longitudinal position on said axis;
- said second magnet means being a piston magnet means for movement longitudinally along said axis in said cylinder toward or away from said rotor magnet, said piston magnet being kept from rotational movement;
- said inlet port means being positioned to be open when said piston magnet means is repelled by the mutual polarity of said magnet means and said outlet port means is positioned to be open when said piston magnet is attracted by the mutual polarity of said magnet means as said rotor magnet means rotates.
A method for pumping and compressing fluids, comprising the steps of:
- positioning first and second diametrically polarized cylindrical magnets in a cylinder having an axis such that the respective polarities attract or repel depending on the relative position thereof on said axis, said first magnet being a rotor magnet for rotation about said axis and said second magnet being a piston magnet for movement along said axis;
- connecting an inlet port in said cylinder to a source of fluid to be pumped and connecting an outlet port in said cylinder to a receptacle for said fluid;
- rotating said rotor magnet on said axis of said cylinder while fixedly restraining said rotor magnet on a longitudinal position on said axis;
- rotating said rotor magnet to cause said second piston magnet to move longitudinally along said axis in said cylinder toward or away from said rotor magnet;
- opening said inlet port when said piston magnet is repelled by the mutual polarity of said magnets to draw fluid from said source and opening said outlet port when said piston magnet is attracted by the mutual polarity of said magnets as said rotor magnet rotates to expel fluid into said receptacle.
Dependencies are inferred from the claim text.