Effect of Exhaust Pressure on the Performance of an 18-Cylinder Air-Cooled Radial Engine with a Valve Overlap of 62 deg
Abstract
Dynamometer tests were conducted to determine increase in power and efficiency obtainable by gearing exhaust-gas turbine and compressor to crankshaft of conventional engine. Range of engine speeds, inlet-manifold pressures, and fuel/air ratios investigated. Exhaust pressure was measured by static-pressure tap located at connection of exhaust pipe and 90 deg elbow. Inlet-manifold pressure increased with exhaust pressure. Effect of exhaust pressure on engine power was greater with 62 deg valve overlap than on greater with 40 deg overlap.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1947
- Accession Number
- ADB227996
Entities
People
- Davis S. Boman
- Leroy V. Humble
- Tibor F. Nagey
Organizations
- National Aeronautics and Space Administration