Oil lubricated compressor
AssigneeBlack & Decker Inc.
InventorsStephen J. Vos, Lance S. Hathcock, James Vintzel, Dalton E. McFarland
Life of this patent
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Abstract
An oil lubricated compressor having a universal motor, efficient starting and re-starting characteristics, and a long operating life. The oil lubricated compressor can have a brushed or brushless universal motor which can drive a cooling fan and a pump. The universal motor can achieve a high torque to voltage ratio, as well as a high torque to current ratio, upon starting or re-starting of the compressor. Optionally, the oil lubricated compressor can use a single cooling fan disposed in the compressor at a location which is between the universal motor and a cylinder head of the pump.
Claims19
A method for starting an oil lubricated compressor, comprising the steps of:
- providing a universal motor;
- configuring the universal motor to drive a flywheel and a drive belt that drives a pump assembly which is at least in part lubricated by an oil;
- applying a start voltage to the universal motor in a range of 75V to 90V;
- applying an inrush current of 90 amps or less to the universal motor for an inrush time of 300 ms or less;
- and
- achieving a rotation of a rotor of the universal motor.
Dependencies are inferred from the claim text.