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Brake mechanism and means to cool same

  • US 3,208,559 A
  • Filed: 03/13/1963
  • Issued: 09/28/1965
  • Est. Priority Date: 03/13/1963
  • Status: Expired due to Term
First Claim
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1. IN COMBINATION WITH A VEHICAL WHEEL AND A BRAKING ELEMENT THEREON, A MEANS FOR COOLING SAID BRAKING ELEMENT COMPRISING:

  • A BRAKE ROTOR DRIVINGLY MOUNTED TO SAID WHEEL, SAID ROTOR BEING FORMED WITH A CAVITY THEREWITH AND AN OPENING IN THE WALLS THEREOF LEADING TO SAID CAVITY;

    A BRAKE CARRIER HOUSING SURROUNDING SAID BRAKE ROTOR AND OPERATIVELY ASSOCIATING A BRAKE STATOR ASSEMBLY WITH SAID ROTOR, SAID CARRIER HOUSING HAVING EXTERNAL FINS AND PROVIDING A SPACE ABOUT SAID ROTOR AND STATOR ASSEMBLY;

    A NORMALLY SOLID MATERIAL IN SAID BRAKE ROTOR CAVITY HAVING A GREATER SPECIFIC HEAT THAN THE SUBSTANCE FROM WHICH THE ROTOR IS MADE;

    A FUSE PLUG SEALING SAID BRAKE ROTOR CAVITY WHICH IS ADAPTED TO DISSOLVE AT A PREDETERMINED TEMPERTURE TO ALLOW THE REMOVAL OF A LATENT HEAT OF VAPORIZATION FROM WITHIN SAID ROTOR;

    A VENT MEANS TO PORT ANY VAPOR WITHIN SAID CARRIER HOUSING TO ALLOW FOR THE PURGING OF ATMOSPHER FROM WITHIN SAID CARRIER HOUSING AND THEREAFTER THE REMOVAL OF SAID LATENT HEAT OF VAPORIZATION AFTER SAID FUSE PLUG HAS DISSOLVED TO PERMIT VAPOR FROM WITHIN THE BRAKE ROTOR CAVITY TO FLOW INTO THE CARRIER HOUSING;

    AND A PRESSURE RESPONSIVE MEANS OPERATIVELY CONNECTED IN SAID BRAKE CARRIER HOUSING FOR ACTUATING THE BRAKING ELEMENT BY MEANS OF A PRESSURIXED GAS, SAID PRESSURE RESPONSIVE MEANS HAVING AN ORIFICE THERETHROUGH LEADING FROM ONE SIDE OF SAID PRESSURE THERETHROUGH MEANS TO THE OTHER SIDE OF SAID PRESSURE RESPONSIVE MEANS WITH A RADIAL PASSAGE COMMUNICATED TO THE ORIFICE ON THE OTHER SIDE OF SAID PRESSURE RESPONSIVE MEANS TO ALLOW A LIMITED FLOW OF PRESSURIZED GAS ACTING UPON SAID PRESSURE RESPONSVIE MEANS TO BE EXHAUSTED FROM SAID PRESSURE RESPONSIVE MEANS INTO SAID CARRIER HOUSING THROUGH SAID ORIFICE AND RADIAL PASSAGE IN SAID PRESSURE RESPONSIVE MEMBER TO PROVIDE A CONTINUOUS PURGING MEDIUM FOR SAID CARRIER HOUSING SO LONG AS SAID PRESSURE RESPONSIVE MEANS IS BEING ACTUATED BY THE PRESSURIZED GAS TO PRECLUDE BAY HARMFUL INTERACTION BETWEEN INCOMPATIBILE FLUIDS WITH SAID CARRIER HOUSING.

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