Seamless pump with coaxial magnetic coupling including stator and rotor
OwnerKevin Sheehaninventor
Life of this patent
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Abstract
A seamless pump is disclosed which includes a pump casing that houses a stator and a rotor. The stator and rotor provide enhanced pumping action in the seamless pump. The stator surrounds at least a portion of the rotor. A rotatable housing surrounds at least a portion of the pump casing and is operatively connected to the motor. A plurality of first magnets are located about an interior surface of the housing and are rotatable therewithin and a plurality of second magnets are operatively connected to and rotatable with the impeller. A seal isolates the second magnets from material being pumped by the pump. A cooling jacket may be used to cool the pump.
Claims15
A pump comprising:
- a motor;
- a pump casing that houses a stator and a rotor assembly, wherein the rotor assembly surrounds at least a portion of the stator;
- a rotatable housing surrounding at least a portion of the pump casing and operatively connected to the motor;
- a first magnet located about an interior surface of the rotatable housing and rotatable therewithin;
- and
- a second magnet operatively connected to and rotatable with the rotor assembly.
A pump comprising:
- a motor;
- a pump casing that houses a rotatable rotor assembly;
- a rotatable housing surrounding at least a portion of the pump casing and operatively connected to the motor;
- at least one first magnet located about an interior surface of the housing and rotatable therewithin;
- at least one second magnet operatively connected to and rotatable with the rotor assembly;
- a seal rotatable with the rotor assembly and in contact with the pump casing for isolating the at least one second magnet from material being pumped by the pump;
- and
- a coolant inlet and outlet for cooling the pump.
A pump comprising:
- a motor;
- a pump casing;
- a first rotatable magnet operatively coupled to the motor and surrounding the pump casing;
- a second rotatable magnet within the pump casing, the second rotatable magnet coupled to a rotor assembly, the rotor assembly including a rotor operatively coupled to a rotating member;
- and
- a stator within the pump casing which is interposed between the rotor and the rotating member.
Dependencies are inferred from the claim text.