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Automotive Stirling Engine Development ProjectThe development and verification of automotive Stirling engine (ASE) component and system technology is described as it evolved through two experimental engine designs: the Mod 1 and the Mod 2. Engine operation and performance and endurance test results for the Mod 1 are summarized. Mod 2 engine and component development progress is traced from the original design through hardware development, laboratory test, and vehicle installation. More than 21,000 hr of testing were accomplished, including 4800 hr with vehicles that were driven more dm 59,000 miles. Mod 2 engine dynamometer tests demonstrated that the engine system configuration had accomplished its performance goals for power (60 kW) and efficiency (38.5%) to within a few percent. Tests with the Mod 2 engine installed in a delivery van demonstrated combined metro-highway fuel economy improvements consistent with engine performance goals and the potential for low emission levels. A modified version of the Mod 2 has been identified as a manufacturable design for an ASE. As part of the ASE project, the Industry Test and Evaluation Program (ITEP), NASA Technology Utilization (TU) project, and the industry-funded Stirling Natural Gas Engine program were undertaken to transfer ASE technology to end users. The results of these technology transfer efforts are also summarized.
Document ID
19970012689
Document Type
Contractor Report (CR)
Authors
Ernst, William D. (Mechanical Technology, Inc. Latham, NY United States)
Shaltens, Richard K. (NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1997
Subject Category
Urban Technology and Transportation
Report/Patent Number
MTI-91TR15
E-10573
NASA-CR-190780
NAS 1.26:190780
DOE/NASA/0032-34
Funding Number(s)
PROJECT: RTOP 632-1A-1J
CONTRACT_GRANT: DEN3-32
CONTRACT_GRANT: DE-AI01-85CE-50112
Distribution Limits
Public
Copyright
Public Use Permitted.

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