Title:
CARBON-CARBON COMPOSITE VALVE FOR HIGH PERFORMANCE INTERNAL COMBUSTION ENGINES
Document Type and Number:
WIPO Patent Application WO2000034629
Kind Code:
A3
Abstract:
A method is provided to fabricate a carbon-carbon (C/C) composite valve (15) comprising machining a carbon-carbon composite valve stem having a flared end (13) and a non-flared end (11) from a cured and densified carbon-carbon plate having a sufficient thickness. Applying a plurality of circular fabric plies coaxially onto the non-flared end of the carbon-carbon valve stem and advancing the plies to contact the flared end of the valve stem. Placing the carbon-carbon valve stem contacted with the plurality of circular fabric plies into a die, closing the die, and cure pressing the plies onto the flared end of the carbon-carbon valve stem to form a valve head. Carbonizing the press cured carbon-carbon composite valve, densifying the carbon-carbon composite valve structure, and coating at least one of the carbon-carbon valve stem and valve head with a high temperature resistant coating comprising an inner and an outer layer.
More Like This:
Inventors:
WILSON DOUG
LEE SAM
MATHUR RAJ
LEE SAM
MATHUR RAJ
Application Number:
PCT/US1999/027371
Publication Date:
December 07, 2000
Filing Date:
November 18, 1999
Export Citation:
Assignee:
HITCO CARBON COMPOSITES INC (US)
International Classes:
C04B35/83; C04B41/52; C04B41/89; C04B41/90; F01L3/02; F01L3/04; (IPC1-7): F01L3/00
Foreign References:
US5190002A | 1993-03-02 | |||
US1470034A | 1923-10-09 | |||
US2396552A | 1946-03-12 |
Other References:
See also references of EP 1137867A4
Download PDF:
Previous Patent: CUTTING ARRANGEMENT
Next Patent: HEAT EXCHANGER FOR SO¿x?- OR NO¿x?- REGENERATION OF CATALYST
Next Patent: HEAT EXCHANGER FOR SO¿x?- OR NO¿x?- REGENERATION OF CATALYST