| 摘要 |
<p>The internal combustion engine (10) includes a fuel delivery system (200) and an exhaust system having an apparatus (44) for regulating exhaust flow to increase engine back pressure. In response to regulated exhaust flow and increased engine back pressure, the fuel delivery system (200) is controlled to decrease fuel flow resulting in increased fuel efficiency of the engine and decreased exhaust emissions. A forced air induction system such as a turbocharger (80) or supercharger may also be used in conjuction with the engine (10). In preferred embodiments, the exhaust flow regulating apparatus (44) is either a fixed cross-sectional area orifice or a variable cross-sectional area orifice.</p> |
