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- W72809805 abstract "NAHBE (Naval Academy Heat Balanced Engine) state of the art technology was applied to a standard military four cylinder M-151-1/4 Ton Utility Truck (Jeep) to demonstrate retrofitted versus standard engine performance in waterbrake and chassis dynamometers as well as on the road. Chassis dyno results showed a maximum possible retrofit improvement in miles per gallon of 21.3% at 55 mph and 35.4% at 30 mph. Waterbrake dyno results show higher improvements at low throttle settings indicating that further improvement on the road is possible by proper coordination of fuel, air and spark timing. NAHBE exhaust gas temperatures are on the order of 200 F lower for equal throttle settings and RPM with maximum temperatures equal to or below the lowest standard engine temperatures. The spread in temperature between max-min at a given speed is reduced by a factor of 3-4. Waterbrake dyno emission levels of CO, HC are reduced significantly (NOx not available at the time); chassis dyno emissions for steady state and transient conditions include NOx. No EGR, air pump or catalytic converter were used. Much flatter torque curves were observed at all throttle settings with appreciable increases noted at part throttle shift point RPM." @default.
- W72809805 created "2016-06-24" @default.
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- W72809805 date "1983-08-15" @default.
- W72809805 modified "2023-09-27" @default.
- W72809805 title "NAHBE (Naval Academy Heat Balanced Engine) M151 retrofit evaluation. Final report 1 Jul 81-30 Jun 83" @default.
- W72809805 hasPublicationYear "1983" @default.
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