16 research outputs found
Exhaust-valve Temperatures in a Liquid-cooled Aircraft-engine Cylinder as Affected by Engine Operating Variables
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NACA Advanced Restricted Reports
Report presenting an investigation of the effect of progressive ring failure on piston life. Two endurance runs were conducted on an Allison single-cylinder engine at high power output until destruction of the pistons occurred at 33.1 and 84.25 hours
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NACA Advanced Restricted Reports
"The results are given of an investigation of some of the limitations that now prevent increases in the temperature level of engine cylinder heads, and a review of previous work in the field is included to supplement these results. Attention was given, in particular, to the effects of fuel knock and surface ignition on cylinder temperatures and the effects of cylinder temperatures on performance. Data were obtained from a Wright C9GC air-cooled cylinder and from a Lycoming O-1230 liquid-cooled cylinder" (p. 1)
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NACA Research Memorandums
Report presenting an investigation in the altitude test chamber to determine the altitude performance of the J71-A-2(600-D1) turbojet engine. The engine was equipped with two-position inlet guide vanes and compressor acceleration bleeds. Results regarding the compressor performance, combustor performance, turbine performance, and effect of altitude on engine performance are provided
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NACA Technical Notes
Report presenting an investigation using a cylinder of a V-type liquid-cooled engine to observe the behavior of the cylinder when operated under preignition conditions. The effects of fuel-air ratio, power output, aromatic content of fuel, engine speed, mixture temperature, and preignition source are provided