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Carbon-carbon cylinder blockA lightweight cylinder block composed of carbon-carbon is disclosed. The use of carbon-carbon over conventional materials, such as cast iron or aluminum, reduces the weight of the cylinder block and improves thermal efficiency of the internal combustion reciprocating engine. Due to the negligible coefficient of thermal expansion and unique strength at elevated temperatures of carbon-carbon, the piston-to-cylinder wall clearance can be small, especially when the carbon-carbon cylinder block is used in conjunction with a carbon-carbon piston. Use of the carbon-carbon cylinder has the effect of reducing the weight of other reciprocating engine components allowing the piston to run at higher speeds and improving specific engine performance.
Document ID
19960016629
Acquisition Source
Langley Research Center
Document Type
Other - Patent Application
Authors
Ransone, Philip O. (NASA Langley Research Center Hampton, VA United States)
Date Acquired
August 17, 2013
Publication Date
April 4, 1995
Subject Category
Composite Materials
Report/Patent Number
NASA-CASE-LAR-15094-1
NAS 1.71:LAR-15094-1
Accession Number
96N22262
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
08/416,599
Patent Application

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