NASA Technical Reports Server (NTRS) 19930091117: Investigation of the Muffling Problem for Airplane Engines
Book details
- Title
- NASA Technical Reports Server (NTRS) 19930091117: Investigation of the Muffling Problem for Airplane Engines
- Publication year listed
- 1920
- Format
- Public domain eBook
- Reading access
- Free online reader; no registration required
- Source record
- View on Archive.org
About this book
NASA Technical Reports Server (NTRS) 19930091117: Investigation of the Muffling Problem for Airplane Engines
Author: NASA Technical Reports Server (NTRS)
Year: 1920
The experimentation presented in this report falls in two divisions: first, the determination of the relation between back pressure in the exhaust line and consequent power loss, for various combinations of speed and throttle positions of the engine; second, the construction and trial of muffler designs covering both type and size. Report deals with experiments in the development of a muffler designed on the principle which will give the maximum muffling effect with a minimum loss of power. The main body of the work has been done on a Curtiss OX eight-cylinder airplane engine, 4 by 5 inches, rated 70 horsepower at 1,200 revolutions per minute. For estimation of the muffling ability and suppression of "bark" of individual exhausts, the "Ingeco" stationary, single cylinder, 5 1/2 by 10 inch, throttling governed gasoline engine, and occasionally other engines were used.
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