| 摘要 |
A Modified Ericsson Turbocharged Reciprocating Engine (METRE), is provided which exhibits a high thermal efficiency for power and refrigeration applications. A Modified Ericsson cycle can include 2, 3, 4, or more stages (number of intercooling and heat/reheat cycles between stages). As stages are added, both cycle efficiency and power density (power/weight flow) increase, therefore, trade-offs between higher performance and number of stages (system complexity, cost, etc.) are necessary to optimize the engine. By combining a turbocompressor for the low pressures of the cycle and a multi-piston reciprocating engine for the high pressures of the cycle, a light weight, highly fuel-efficient, low-polluting, engine can be achieved. The METRE is highly suited for the power range of automobiles and trucks. This engine can use low technology (lower turbine temperatures, efficiencies, etc.) as well as high technology components (higher turbine temperatures, efficiency etc.) and remain competitive with Brayton, Stirling, gas and Diesel engines. The Ericsson cycle, like the Brayton and Stirling, utilizes external combustion or heating and thus can use readily available optional fuels such as natural gas, kerosene, propane, butane and gases derived from coal. Solar and nuclear energy are also useable heat source candidates.
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