This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Pneumatic and Sonic Measurement of Combustion-Chamber Volume
Annotation ability available
Sector:
Language:
English
Abstract
AMONG the difficulties usually associated with measurement of combustion-chamber volume by liquid methods are amount of time required, contamination of combustion-chamber deposits, and inaccuracies arising from entrapped air.
Use of a gaseous fluid such as air as the measuring medium eliminates most of the objectionable features of volume measurement with liquids. Techniques utilizing air for volume measurement fall into two basic classifications: dynamic or sonic methods, and static or pneumatic systems.
Cylinder leakage and acoustic damping by engine deposits affect the accuracy of volume measurements based on dynamic properties of combustion-chamber volume, hence small volumes occupied by combustion-chamber carbon deposits must be measured separately by static or pneumatic means.
Recommended Content
Authors
Citation
Weinert, G., "Pneumatic and Sonic Measurement of Combustion-Chamber Volume," SAE Technical Paper 560008, 1956, https://doi.org/10.4271/560008.Also In
References
- NACA TN-27 1920 “Instrument for Measuring Clearance Volumes,” Sparrow. S. W.
- “Introduction to Principles of Pneumatic Gaging,” Kirk. D. B. Paper presented at ASME Annual Meeting New York Nov. 30–Dec. 5 1952
- Instruments, Vol. 18 September 1945 598 603 “Solution of Instrumentation Problems by Pneumatic Null Balance Method,” Moore. C. B.
- “Elements of Acoustical Engineering,” Olson. H. F. Van Nostrand New York 1940
- “Acoustic Measurements,” Beranck. L. L. Wiley New York 1949
- Physical Review, Vol. 28 November 1926 1038 1047 “Direct Absolute Measurement of Acoustic Impedance,” Stewart. G. W.
- “Fundamentals of Acoustics,” Kinsler L. E. Frey. A. R. Wiley New York 1950
- Journal of Acoustical Society of America, Vol. 25 November 1953 1068 1083 “Study of Factors Influencing Damping of Acoustic Cavity Resonator,” Lambert. R. F.
- Journal of Acoustical Society of America, Vol. 25 January 1953 138 146 “Characteristics of Jet-Edge-Resonator Whistles,” Nyborg, W. L. Woodridge, C. L. Schilling. H. K.
- Journal of Acoustical Society of America, Vol. 25 November 1953 1037 1061 “On Theory and Design of Acoustic Resonators,” Ingard. U.