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Load control of a spare ignited engine without throttling and method of operation

  • US 5,549,096 A
  • Filed: 06/08/1995
  • Issued: 08/27/1996
  • Est. Priority Date: 06/08/1995
  • Status: Expired due to Fees
First Claim
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1. A power plant for a variable load application comprising an internal combustion multi-cylinder engine, a fuel tank connected to supply fuel to the engine, first and second intake manifolds for supplying charge air to the engine, the first manifold supplying relatively high density air and the second manifold supplying relatively low density air and control means to determine which of said manifolds feeds which of said cylinders of the engine, the control means being arranged to feed a majority of cylinders exclusively from the first manifold under conditions of relatively high load and to feed a majority of the cylinders exclusively from the second manifold under relatively light loads and to feed a limited number of the cylinders exclusively from the first manifold and a limited number of the cylinders exclusively from the second manifold during moderate loads whereby the power output of the engine is regulated without substantial throttling losses at low and moderate power levels.

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