Abstract: A water injection system reduces nitrous oxide emissions in turbocharged internal combustion engines driving electrical power generators. A current-activated relay located in switchgear associated with the generator becomes energized asserted when the current output of the generator exceeds a value that corresponds to predetermined NOx permissible emissions level. The output of the relay activates a motor starter which controls a rotary vane pump. The pump draws distilled water from a water tank, forcing the water through a particle strainer, an adjustable flow regulator, a solenoid, a flow meter, and backflow check valves, to water injection nozzles located in the combustion airstream immediately after a turbocharger compressor. The nozzles provided include fine-mesh strainers and atomize the water to 100 micron particle sizes, and distribute the water particles in an 85-degree spray cone pattern.

Abstract: A system is provided for increasing the efficiency of internal combustion engines operating at high loads and more particularly to a multi-cylinder engine in which at least one cylinder is used as the power recovery device. The waste heat generated during operation of the engine is utilized for producing an amount of energy to perform the work by means of a Rankine cycle.

Abstract: A piston ring assembly wherein a piston member operating within a cylinder is lubricated by means of gas rather than oil films or solid lubricants. One ring (located near the lower end of piston) or two rings (one located near the lower end and the other near the top end of piston) trap gas between the piston and the cylinder wall to form a gas bearing area. The rings are designed to permit gas flow in one direction into the gas bearing area.