Electromagnetic actuators
AssigneeGeneral Electric Company
InventorsHerbert Kopecek, Michael Bernhard Schmitz, Mohamed Ahmed Ali
Life of this patent
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Abstract
A valve includes a valve plate coupled to the movable device disposed partially within a housing. An electromagnetic actuator includes a first set of permanent magnets provided to the movable device. At least one stator core is disposed proximate to the movable device with a gap between the stator core and the movable device. At least one stator coil is wound to each stator core. A power source is coupled to the at least one stator coil and configured to supply electric current to the at least one stator coil. The opening and closing of the valve plate is controlled by changing direction of electric current flow through the at least one stator coil.
Claims25
A valve configured for use in a machine, the valve comprising:
- a movable device disposed partially in a housing;
- a valve plate coupled to the movable device;
- and
- a linear electromagnetic actuator comprising:
- a first set of permanent magnets provided to the movable device;
- at least one stator core disposed proximate to the movable device with a gap between the stator core and the movable device;
- at least one stator coil wound to each stator core;
- and
- a power source coupled to the at least one stator coil and configured to supply electric current to the at least one stator coil;
- wherein opening and closing of the valve plate is controlled by changing direction of electric current flow through the at least one stator coil.
A valve configured for use in a machine, the valve comprising:
- a movable device disposed partially in a housing;
- a valve plate coupled to the movable device;
- and
- a linear electromagnetic actuator comprising:
- a plurality of permanent magnets provided to the movable device;
- at least one stator core disposed proximate to the movable device with a gap between the stator core and the movable device;
- at least one stator coil wound to each stator core;
- a power source coupled to the at least one stator coil and configured to supply electric current to the at least one stator coil;
- a control unit coupled to the power source and configured to control the supply of electric current to the at least one stator coil based on a load condition of the machine;
- wherein opening and closing of the valve plate is controlled by changing direction of electric current flow through the at least one stator coil.
A valve configured for use in a machine, the valve comprising:
- a movable device disposed partially in a housing;
- a valve plate coupled to the movable device;
- and
- a linear electromagnetic actuator comprising:
- a plurality of permanent magnets provided to the movable device;
- at least one stator core disposed proximate to the movable device with a gap between the stator core and the movable device;
- wherein the housing is disposed in the gap between the stator core and the movable device;
- at least one stator coil wound to each stator core;
- and
- a power source coupled to the at least one stator coil and configured to supply electric current to the at least one stator coil;
- wherein opening and closing of the valve plate is controlled by changing direction of electric current flow through the at least one stator coil.
Dependencies are inferred from the claim text.