SUBMERGED ROTOR FLOW CONTROL VALVE
First Claim
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1. A valve comprising:
- a conduit comprising an inlet and an outlet, the conduit configured to receive a fluid via the inlet and discharge the fluid from the outlet after the fluid passes through the conduit;
a motor comprising a stator and a magnetic rotor, the magnetic rotor disposed to contact the fluid as the fluid passes through the conduit and being positioned with a rotor axis of rotation substantially aligned with a direction of fluid flow through the conduit, the stator disposed to at least partially encircle the magnetic rotor and to cause rotation of the magnetic rotor around the rotor axis of rotation in response to electrical power provided to the motor; and
a modulating orifice located between the inlet and outlet, the modulating orifice comprising a flow passage through which fluid can flow;
a flow control element connected to the magnetic rotor such that the flow control element moves in response to rotation of the magnetic rotor, movement of the flow control element causing a size of the flow passage of the modulating orifice to change in a controllable manner.
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Abstract
A valve for controlling fluid flow may include a conduit with an inlet and an outlet. A modulating orifice of the valve can include a flow passage, the size of which can be varied by movement of a flow control element that moves in response to rotation of a magnetic rotor acted upon by a stator of a motor. The magnetic rotor can be submerged within a fluid passing through the conduit of the valve. Apparatus, systems and methods of use and making of valves having one or more of these features are described.
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Citations
20 Claims
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1. A valve comprising:
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a conduit comprising an inlet and an outlet, the conduit configured to receive a fluid via the inlet and discharge the fluid from the outlet after the fluid passes through the conduit; a motor comprising a stator and a magnetic rotor, the magnetic rotor disposed to contact the fluid as the fluid passes through the conduit and being positioned with a rotor axis of rotation substantially aligned with a direction of fluid flow through the conduit, the stator disposed to at least partially encircle the magnetic rotor and to cause rotation of the magnetic rotor around the rotor axis of rotation in response to electrical power provided to the motor; and a modulating orifice located between the inlet and outlet, the modulating orifice comprising a flow passage through which fluid can flow; a flow control element connected to the magnetic rotor such that the flow control element moves in response to rotation of the magnetic rotor, movement of the flow control element causing a size of the flow passage of the modulating orifice to change in a controllable manner. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15)
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11. A method comprising:
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receiving a fluid into an inlet of a conduit of a valve; causing rotation of a magnetic rotor about a rotor axis of rotation in response to electrical power provided to a motor comprising the magnetic rotor and a stator;
the magnetic rotor disposed to contact the fluid as the fluid passes through the conduit and positioned with a rotor axis of rotation substantially aligned with a direction of fluid flow through the conduit, the stator disposed to at least partially encircle the magnetic rotor; andmoving a flow control element connected to the magnetic rotor in response to the rotation of the magnetic rotor, movement of the flow control element causing a size of a flow passage of a modulating orifice to change in a controllable manner, the modulating orifice disposed between the inlet and an outlet of the conduit. - View Dependent Claims (12, 13, 16, 17, 18, 19, 20)
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Specification