Cummins Inc.

Cummins Engine Company, Inc.

Cummins Filtration Ip, Inc.

Dean H Dringenburg

Matthew L Schneider

Mark T Wieczorek

Rahul B Kallurwar

Phanindra V Garimella

Joan M Wills

Michael Andrew Lucas

Ross C Berryhill

Jerry C Wang

Alfred Schuppe

Weibo Weng

Shawn Douglas Whitacre

Pranati Yadav

Daniel R Hashbarger

Louis P Oldham

Mike French

A water sensor for a fuel filtration apparatus includes a main body with at least one electrical contact disposed proximate the first end of the main body. The electrical contact(s) is operatively connectable to an electronic control unit. Multiple sensor contacts are disposed proximate a second end of the main body. The sensor contacts are configured to detect multiple water levels and provide an output on each water level detected. The electrical contact is configured to send the output to an electronic control unit. The water level information provided by the water sensor can be tracked by a control device to determine if the fill rate of water meets an alarm value.

Multi-conductor water in fuel sensor for fill rate detection

A system includes an internal combustion engine producing an exhaust stream, a particulate filtering device that treats the exhaust stream, a particulate sensor operatively coupled to the exhaust stream at a position downstream of the particulate filtering device, and a temperature sensor operatively coupled to the exhaust stream. The system includes a controller that interprets a particulate sensor particulate stability condition, interprets a particulate sensor input value and a particulate sensor temperature, compensates the particulate sensor input value in response to the particulate sensor temperature, and filters the compensated particulate sensor input value. The controller determines a soot accumulation value in response to the filtered compensated particulate sensor input value, interprets a diagnostic enable condition, and determines a particulate filter diagnostic value in response to the active diagnostic enable condition and the soot accumulation value. The controller provides the particulate filter diagnostic value to an output device.

Particulate filter diagnostics

An exhaust gas recirculation system for an internal combustion engine includes intake and exhaust manifolds that respectively receive ambient air and expel exhaust gas. A recirculation line fluidly connects the exhaust and intake manifolds. An exhaust gas recirculation valve is included in the recirculation line and is controlled to distribute exhaust gas into the intake manifold. A particle trap is arranged to receive all of the exhaust gases from the exhaust manifold and includes a particle collection chamber therein. A stagnation region is provided within the particle trap such that all the exhaust gas passed through the exhaust gas particle trap is directed toward the stagnation region therein and at least a portion of debris carried with the exhaust gas is retained within the particle collection chamber.

Engine exhaust gas recirculation particle trap

A continuous liquid level measurement system is disclosed which is based upon a differential pressure measurement. The pressure of the liquid level to be measured is calibrated with a second pressure measurement of the pressure above the liquid in order to get a more accurate pressure measurement which is related in a predetermined manner to the level of the liquid. For instances in which the liquid to be measured is in a harsh environment, the invention provides for a means for mounting the sensitive pressure measurement devices remotely from the liquid.

Continuous liquid level measurement system

A system and method for indicating when the oil of an engine needs to be changed. The system includes measuring engine parameters such as engine temperature, fueling rate, engine speed, and engine load. At timed intervals, soot generation, viscosity increase, and total base number (TBN) depletion are estimated through a calculation for that time interval. The estimated values from the calculations are accumulated in separate loops. Once the accumulation of soot generation, oil viscosity increase, or TBN depletion reaches a predetermined magnitude for that respective oil property, then an indication or signal is provided to indicate to the engine operator that the oil needs changing. The system is supplemented with real time sensors such as an oil level sensor, a soot sensor, and a viscosity sensor which provide a back up for the calculation of estimates and also prevent catastrophic engine conditions from not being detected through electronic calculation of estimates. The system and method also can correct for the accumulation of oil consumption caused by evaporation of oil or leakage of oil. The algorithms used in the calculations can account for oil quality and fuel sulfur as well as the configuration of the engine, to allow the engine to be used in different geographic locations.

System and method for determining oil change interval

Portable cooler

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Seymour, IN, United States of America

Dean H Dringenburg