Abstract: A system and method for measuring end gap position and rotation of rings on a piston reciprocating in an engine cylinder. Eddy current induction detectors are installed in ports extending through the cylinder wall spaced around the circumference. Signals are collected from each detector over a portion of the engine cycle for a number of revolutions, and the end gap position is associated with a detector having a significant variation in sensed induction currents.

Abstract: A process for automated measurement of ammonia in a gas mixture containing ammonia gas and one or more water-insoluble gases includes providing a water reservoir adapted for supplying water therefrom through a first solenoid valve and providing a measurement vessel adapted for receiving water. The vessel is adapted for draining the water therefrom through a second solenoid valve. The vessel is also adapted for receiving the gas mixture through a third solenoid valve and purging the gas mixture from the vessel through a fourth solenoid valve. The vessel is adapted for maintaining the gas in the vessel and receiving water thereinto in an amount sufficient to dissolve the ammonia gas contained in the gas mixture, into the water, and allowing a differential pressure between the gas mixture and the water containing dissolved ammonia to be measured.

Abstract: A process for automated measurement of ammonia in a gas mixture containing ammonia gas and one or more water-insoluble gases includes providing a water reservoir adapted for supplying water therefrom through a first solenoid valve and providing a measurement vessel adapted for receiving water. The vessel is adapted for draining the water therefrom through a second solenoid valve. The vessel is also adapted for receiving the gas mixture through a third solenoid valve and purging the gas mixture from the vessel through a fourth solenoid valve. The vessel is adapted for maintaining the gas in the vessel and receiving water thereinto in an amount sufficient to dissolve the ammonia gas contained in the gas mixture, into the water, and allowing a differential pressure between the gas mixture and the water containing dissolved ammonia to be measured.

Abstract: A quench cooling effectiveness apparatus for continuous monitoring of a heat treat quench system and method of operation is provided. The apparatus preferably includes first and second heat conductive sheaths having temperature sensors installed therein. The heat conductive sheaths are thermally insulated from each other with a heat resistive sheath. A microprocessor is preferably connected to said sensors, applies a known current to one sensor, and calculates a cooling effectiveness of the heat treat quench system from the temperature of the two sensors and the known applied current.

Abstract: A quench system cooling effectiveness meter including a reference sensor and a measurement sensor is disclosed. The reference sensor and the measurement sensor are included in a resistance bridge. The amount of heat that can be removed by the quench system from the measurement sensor is recorded to determine the cooling effectiveness of the quench system. The meter can be moved to different locations within the quench system to measure cooling variations within the system as a function of location.

Abstract: An apparatus for measuring gaseous blowby a piston of an operating internal combustion engine. The apparatus have a heating and filtering system which function to increase the accuracy of the resultant measurements. The orientation of the conduit, flow meter, and the control of oil sump pressures also contribute to improved accuracy and ease of operation.