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Three-Port Valve

  • US 20110240896A1
  • Filed: 04/05/2011
  • Published: 10/06/2011
  • Est. Priority Date: 04/05/2010
  • Status: Active Grant
First Claim
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1. A valve comprising:

  • a valve body comprising a first port, a second port, and a third port, said first port having a first valve orifice and said second port having a second valve orifice;

    a first valve closure member and a second valve closure member, said first and second valve closure members configured to selectively seal said first and second valve orifices, respectively;

    a solenoid comprising a first coil and a second coil, at least one of said first and second coils configured to actuate at least one of said first and second valve closure members when energized;

    an electrical connection configured to selectively and individually energize said first and second coils; and

    said valve being configured to operate in at least three different states of operation;

    wherein, when said valve is in a first state, neither said first nor said second coil is energized and said first and second valve closure members are in first positions;

    wherein, when said valve is in a second state, said first coil is energized and said first valve closure member is in a second position;

    wherein, when said valve is in a third state, said second coil is energized and said first valve closure member is in said second position and said second valve closure member is in a second position.

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