Engine oil dipstick monitoring apparatus
AssigneePerkins Engines Company Limited
InventorChristopher J. Green
Life of this patent
Estimating the term…
Abstract
An engine oil dipstick for monitoring an internal combustion engine comprises a processor and a sensor module. The sensor module is configured to sense a characteristic of the internal combustion engine and to output data representative of the sensed characteristic to the processor. The engine oil dipstick is configured to provide a housing for the processor. The processor is configured to determine a value representative of the firing frequency of the internal combustion engine based on the output data.
Claims11
An engine oil dipstick for monitoring an internal combustion engine comprising:
- a processor;
- a sensor module configured to sense a characteristic of the internal combustion engine and output data representative of the sensed characteristic to the processor, the sensor module comprising a pressure sensor and the sensed characteristic comprising engine crankcase pressure;
- wherein the engine oil dipstick is configured to provide a housing for the processor;
- and
- the processor is configured to determine a value representative of the firing frequency of the internal combustion engine based on the output data, and the processor is further configured to calculate a root mean squared value of engine crankcase pressure.
An engine oil dipstick for monitoring an internal combustion engine comprising:
- a sensor module configured to sense a characteristic of the internal combustion engine and output data representative of the sensed characteristic to a processor, the sensor module comprising a pressure sensor and the sensed characteristic comprising an engine crankcase pressure;
- the processor is configured to determine a value representative of the firing frequency of the internal combustion engine based on the output data, wherein the engine oil dipstick is configured to provide a housing for the processor;
- an inner portion;
- an outer portion;
- a seal between the inner portion and the outer portion, wherein the inner portion is configured to be received into a dipstick insertion aperture of an engine and the seal is configured to seal the dipstick insertion aperture of the engine;
- a first fluid conduit between an exterior surface of the inner portion and a first sensing port of the pressure sensor;
- and
- a second fluid conduit between an exterior surface of the outer portion and a second sensing port of the pressure sensor.
Dependencies are inferred from the claim text.