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Analysis and test of insulated components for rotary engineThe direct-injection stratified-charge (DISC) rotary engine, while attractive for aviation applications due to its light weight, multifuel capability, and potentially low fuel consumption, has until now required a bulky and heavy liquid-cooling system. NASA-Lewis has undertaken the development of a cooling system-obviating, thermodynamically superior adiabatic rotary engine employing state-of-the-art thermal barrier coatings to thermally insulate engine components. The thermal barrier coating material for the cast aluminum, stainless steel, and ductile cast iron components was plasma-sprayed zirconia. DISC engine tests indicate effective thermal barrier-based heat loss reduction, but call for superior coefficient-of-thermal-expansion matching of materials and better tribological properties in the coatings used.
Document ID
19890064118
Document Type
Conference Paper
Authors
Badgley, Patrick R. (Adiabatics, Inc. Columbus, IN, United States)
Doup, Douglas (Adiabatics, Inc. Columbus, IN, United States)
Kamo, Roy (Adiabatics, Inc. Columbus, IN, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
MECHANICAL ENGINEERING
Report/Patent Number
SAE PAPER 890326
Meeting Information
International Congress and Exposition on Rotary Engine Design: Analysis and Developments(Detroit, MI)
Distribution Limits
Public
Copyright
Other