Carbon-carbon cylinder block

Details Carbon-carbon cylinder block Carbon-carbon cylinder block

1997-04-25

1998-06-23

Denion, Thomas E.

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder detail

921691, 921701, F02F 7506

Patent

active

057690464

ABSTRACT:
A 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 block 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.

REFERENCES:
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patent: 4846051 (1989-07-01), Wade et al.
patent: 4909133 (1990-03-01), Taylor et al.
patent: 4955284 (1990-09-01), Faulkner
patent: 5083537 (1992-01-01), Onofrio et al.
patent: 5094150 (1992-03-01), Russner et al.
patent: 5370087 (1994-12-01), Guimond et al.

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