EXPLORATORY DEVELOPMENT PROGRAM ON YRC-180-2 AND RC2-60 ROTATING COMBUSTION ENGINES.
Final rept. 19 Jun 67-30 Jun 68,
CURTISS-WRIGHT CORP WOODRIDGE N J
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The YRC-180-2 is an air-cooled, JP-5 fueled aircraft version of the rotating combustion engine. The RC2-60 is a fuel injected, spark ignited marine diesel fuel version of the rotating combustion engine. The RC1-90 liquid cooled combustion rig performs similar to the YRC-180-2 and can therefore be effectively utilized to evaluate combustion parameters for the air cooled engine. The engine did not develop the target fuel consumption using the 2.13 in. BTC injector location and standard 7.51 compression ratio rotor, although the potential for developing rated power has been demonstrated. Performance of the 90 cubic inch chamber is not up to the 60 cubic inch chamber at this stage of development, probably as a result of less optimum axial fuel distribution. The cooling improvements demonstrated, when combined with a blower meeting design requirements and improvements anticipated from combustion improvements, will permit cooling the YRC-180-2 engine to maximum power rating. The RC1-90 demonstrated power output above that required to meet the YRC-180-2 rating 163.5 HP demonstrated on 1-90 is equivalent to 324 HP for the YRC-180-2 versus the 310 HP rating. Additional development work is required on the YRC-180-2 to achieve performance targets, cooling capability and durability. Author
- Reciprocating and Rotating Engines