High-enthalpy fluid injection integrated with glow plug

摘要

Disclosed is a turbocharged internal combustion piston engine system that includes a waste-heat recovery system. The waste-heat recovery system involves injecting heated water into the cylinders during combustion to increase engine power and efficiency and to reduce emissions. The engine can be a spark or compression ignition type of engine, and can utilize fuels including but not limited to diesel, natural gas, gasoline, and ethanol. The engine also includes a turbocharger that utilizes a turbine in the exhaust gas flow to provide power to a compressor in the intake air flow to pressurize the intake air and provide additional charge flow to the engine to increase engine output.

主权项

1. A component for a waste heat recovery system for an internal combustion engine, comprising:
a glow plug to provide heat to an engine cylinder of said internal combustion engine during engine startup; a plurality of water passages internal to and located circumferentially around said glow plug to receive heated water such that said plurality of water passages and said glow plug are one integral component; and, a plurality of steam spray holes that interface with said plurality of water passages to produce a steam plume surrounding said glow plug and internal to said engine cylinder when said plurality of water passages are supplied with said heated water, wherein said glow plug and said plurality of steam spray holes are to interface to said engine cylinder via a single passage through an engine cylinder head of said internal combustion engine.