Overheat protection for fluid pump

An apparatus for inhibiting damage to a fluid pump, the apparatus comprising:

• a pump head for receiving a fluid at a first pressure and outputting the fluid at a second pressure that is greater than said first pressure;
• a motor positioned adjacent said pump head for driving the pump head to pressurize the fluid;
• and
• a sensor switch positioned in said motor adjacent the pump head for directly sensing the temperature of the pump head and the motor and preventing operation of the motor when a threshold temperature is sensed.

An apparatus for inhibiting damage to a motor pump, the apparatus comprising:

• a pump head for receiving a fluid at a first pressure and outputting the fluid at a second pressure that is greater than said first pressure;
• a motor positioned adjacent said pump head for driving the pump head to pressurize the fluid;
• and
• a bi-metal switch formed in stator windings of the motor adjacent the pump head for sensing the temperature of the pump head and the motor and preventing operation of the motor when a threshold temperature is sensed, said bi-metal switch including:
• a closed position providing electrical continuity through the stator windings during normal operation of the motor;
• and
• an open position preventing electrical continuity through the stator windings when an overheat condition is sensed by the bi-metal switch.