Project Title:

Adiabatic Wankel Type Rotary Engine

01.03-5052
Adiabatic Wankel Type Rotary Engine
Adiabatics Inc.
630 South Mapleton Avenue
Columbus
IN
47201
Kamo
Roy
NAS3-24880
Amount:437,000
LeRC
NAS3-24533

Abstract:

   The Phase I study of the turbocharged "Adiabatic Wankel-Type Rotary Engine"indicated progressive performance improvements in Wankel rotary engines when the
combustion chamber components were insulated.  The adiabatic Wankel engine with the
advanced concepts:  turbocompounding, higher compression ratio, reduced leakage,
and faster combustion could decrease the specific fuel consumption by 25% and increase
power output by 34%.  The elimination of the cooling system can give another 5% reduction
due to cooling system components.  A total possible improvement of 30% in performance
and a 15% reduction in specific weight on an installed basis could provide the next
spring-board for the adiabatic Wankel rotary engine to compete in the worldwide aircraft,
automotive, industrial, and other power plant markets.

Based on the Phase I incentive, a two-year program is proposed herein to design,
fabricate, procure, and assemble a prototype, adiabatic Wankel rotary engine with
50% adiabacity.  The prototype engine will be extensively tested in the laboratory
to determine:  (1) performance improvements, (2) integrity of the
 ceramic coatings and components, (3) emissions characteristics, and (4) wear and
durability trend.  Turbocompound performance improvements will be calculated from
the laboratory test data by simulating intake and exhaust mainfold pressures.