Over ride oil pump
OwnerHoward D. Murtherinventor
Life of this patent
Estimating the term…
Abstract
An over ride oil pump for use with reciprocating or rotary engines which provides auxiliary oil pumping under three circumstances by use of an electrically operated oil pump, digital circuitry and sensors. As a car is started the standard mechanical oil pump cannot provide adequate lubrication since the mechanical pump can only pump at a rate proportional to engine speed. The over ride pump begins immediately, upon initiation of engine start up. Under conditions of high RPM operation extra lubrication is required. The over ride oil pump senses increased vacuum levels and provides additional oil delivery. Oil pressure drops rapidly if there is a failure in the mechanical pump drive mechanism or the pump itself. The over ride oil pump senses this deficiency and provided the necessary oil delivery.
Claims7
An over ride oil pump comprising in combination a mechanical oil pump which normally delivers oil to an engine which is running;
- an electrical pump with associated pump motor which pumps oil to said engine at the time of ignition before said engine has come up to speed, during periods of exceptionally high engine speed, and when said mechanical oil pump has failed to deliver sufficient oil pressure;
- supply means for supplying oil from the engine oil sump to both said mechanical oil pump and said electrical oil pump, in parallel;
- a filter receiving pumped oil from both said mechanical oil pump and said electrical pump, in parallel, for removing undesired debris from said oil;
- means for receiving a multiple of signals and combing them for activating said electrical oil pump with associated pump motor, said signals including an ignition signal, an oil pressure signal, and a vacuum pressure signal;
- and means for preventing said oil from flowing backwards through said mechanical oil pump and said electrical oil pump.
Dependencies are inferred from the claim text.