Stoichiometric high-temperature direct-injection compression-ignition engine

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United States of America Patent

PATENT NO 11542856
APP PUB NO 20180306098A1
SERIAL NO

16017333

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Abstract

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A neat-fuel direct-injected compression ignition engine having a thermal barrier coated combustion chamber, an injection port injects fuel that satisfies a stoichiometric condition with respect to the intake air, a mechanical exhaust regenerator transfers energy from exhaust gas to intake compression stages, an exhaust O2 sensor inputs to a feedback control to deliver quantified fuel, a variable valve actuation (VVA) controls valve positions, an exhaust gas temperature sensor controls exhaust feedback by closing the exhaust valve early according to the VVA, or recirculated to the chamber with an exhaust-gas-recirculation (EGR), heat exchanger, and flow path connecting an air intake, a load command input, and a computer operates the EGR from sensors to input exhaust gas according exhaust temperature signals and changes VVA timing, the load control is by chamber exhaust gas, the computer operates a fuel injector to deliver fuel independent of exhaust gas by the O2 signals.

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Patent Owner(s)

  • THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Edwards, Christopher F Sunnyvale, US 20 128
Johnson,, IV Bernard H Stanford, US 4 11
Roberts, Gregory B Stanford, US 15 529

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