This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Design, Construction and Testing of Hypocycloid Machines
Annotation ability available
Sector:
Language:
English
Abstract
The hypocycloid mechanism, in its basic or modified version, can be used in reciprocating machines as an alternative solution to the conventional crankshaft-connecting rod system. This kinematic device is quite old in concept, but still gives rise to some research since it has some positive mechanical features, and it allows several functions to be easily combined.
In the hypocycloid mechanism in fact the connecting rod has a perfectly sinusoidal straight-line motion, a characteristic that theoretically reduces the piston side thrust to zero and permits a perfect balance of inertia forces without auxiliary rotating shafts. Moreover, by means of a second head with suitable seals that prevent leakage to the crankcase, the lower portion of the cylinder can be used as a second working chamber without using the crosshead thus reducing the dimensions of the double acting machine.
The authors have undertaken theoretical and experimental research in order to evaluate the positive features, in particular those concerning the possibility of the combination of functions, and to compare these characteristics with the evident shortcomings. This has led to the design and construction of a double acting compressor, whose performances have been compared with those of a traditional compressor.
A perfectly balanced two-stroke engine, with the scavenging pump separated from the crankcase, has also been constructed and tested.
Recommended Content
Technical Paper | Lubrication Aspects of a Modified Hypocycloid Engine |
Technical Paper | A Critical Evaluation of the Geared Hypocycloid Mechanism for Internal Combustion Engine Application |
Technical Paper | Design of a Modified Hypocycloid Engine |
Authors
Topic
Citation
Badami, M. and Andriano, M., "Design, Construction and Testing of Hypocycloid Machines," SAE Technical Paper 980120, 1998, https://doi.org/10.4271/980120.Also In
References
- Ishida K. Yamada T. “Research on a Two-Stroke Cycle Single Cylinder Vibrationless Reciprocating Engine Chain Saw Utilizing an Internal Gear System (1st Report, Analysis of This Engine and Numerical Computation)” Bulletin of the JSME 29 257 November 1986
- Ishida K. Yamada T. “Research on a Two-Stroke Cycle Single Cylinder Vibrationless Reciprocating Engine Chain Saw Utilizing an Internal Gear System (2nd Report, Trial Manufacture and Experiments)” Bulletin of the JSME 29 257 November 1986
- Beachley N.H. Lenz M.A. “A Critical Evaluation of the Geared Hypocycloid Mechanism for Internal Combustion Engine Application” SAE Paper 880660 1988
- Amodio D. Caputo C. “A New Mechanism with Eccentric for I.C. Engine” CIMAC 19th International Congress on Combustion Engine Firenze 1991
- Lee K. Clark N. George A. Petrucci V. Smith J. “Thermodynamic Implications of the Stiller-Smith Mechanism” SAE Paper 870615 1987
- George A. Clark N. Smith J. Cox J. “Experimental Investigation of the Heat Release in a Sinusoidal Spark Ignition Engine” SAE Paper 890778 1989
- Ruch D.M. Fronczak F.J. Beachley N.H. “Design of a Modified Hypocycloid Engine” SAE Paper 911810 1991
- Oh K.P. Li C.H. Goenka P.K. “Elastohydrodynamic Lubrication of Piston Skirts” Transactions of the ASME 109 Aprile 1987
- D'Amelio C. 1962
- Smith J. Craven R. Cutlip R. “The Stiller-Smith Mechanism: A Kinematic Analysis” SAE Paper 860535 1986
- Ishida K. “Fundamental Researches on Perfectly Balanced Rotation-Reciprocation Mechanism (Report 1, Basic Theories of this Mechanism and Basic Constitution)” Bulletin of the JSME 17 103 January 1974
- Ishida K. Matsuda T. “Fundamental Researches on Perfectly Balanced Rotation-Reciprocation Mechanism (Report 2, Vibration on an Eccentric Geared Device of a Crankshaft Planetary Motion System and a Dynamic Balancing Machine)” Bulletin of the JSME 17 103 January 1974
- Ishida K. Matsuda T. Shinmura S. Oshitani Y. “Fundamental Researches on Perfectly Balanced Rotation-Reciprocation Mechanism (Report 3, Structural Analysis on Vibrationless Geared Devices of a Crankshaft Rotary Motion System, and their Vibration and Friction Loss)” Bulletin of the JSME 17 108 June 1975
- Ishida K. Matsuda T. Oshitani Y. Sato M. “Fundamental Researches on Perfectly Balanced Rotation-Reciprocation Mechanism (Report 4, Static Balanced Theory of Rotation-Reciprocation Mechanism, and Comparison between Perfectly Balanced Rotation-Reciprocation Device and Known Piston-Crank Devices)” Bulletin of the JSME 18 116 February 1975
- Ishida K. Kanetaka S. Omori Y. Matsuda T. “A Vibration-less Reciprocating Engine (Trial Manufacture and Experiments of a Small Two-cycle Vibrationless Reciprocating Engine)” Bulletin of the JSME 20 142 April 1977
- Andriano M. Badami M. settembre 1993
- Keown R.M. “Mechanism” McGraw Hill Book Co. N. Y. 1921
- Capetti A. Giorgio V.
- Henriot G.
- Heywood J.B. “Internal Combustion Engine Fundamentals” McGraw Hill
- Bishop G.R. Leavitt A.H. “Performance Simulation of a Diesel Piston and Ring System” SAE Paper 750768 1975
- Berta G.L. Capobianco M. ottobre 1983
- Capobianco M. Berta G.L. settembre 1983
- Berta G.L. Capobianco M. Gambarotta A. settembre 1987
- Burkett M.J. Beachley N.H. Fronczak F.J. “Lubrication Aspects of a Modified Hypocycloid Engine” SAE Paper 920380 1992