( FRE ) Frasca Rotary Engine
PROGRAM
SECTION: 1FRASCA
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1 UNDULATIONS & 2:1 EXPANSION RATIO |
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FRASCA ROTARY ENGINE DESIGN PROGRAMS. Version 98-2e. Copyr., 1986-2000 by Joseph F. Frasca THE PROGRAMS WILL NOT FUNCTION OUTSIDE OF THE DIRECTORY (FOLDER) FRASCA. Heat transfer program sections are not included. |
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| 1FRASCA | This program is used to indicate the engine's basic physical characteristics. |
| 2FRASCA | This program is used for partition design
and acquisition
of the cam-partition hydrodynamic interaction data.
This program need not be run for the other programs to function properly; i.e. its data is not needed. |
| 3FRASCA | This program is used for the engine's
basic compressor
and operating environment data and must be run before programs
4FRASCA
and 5FRASCA.
Program 8FRASCA can be used immediately after this program for the graph of its data. |
| 4FRASCA | This program generates the basic
thermodynamic data
for the engine.
Program 8FRASCA can be used immediately after this program to graph the generated data. |
| 5FRASCA | This program generates the engine's
performance data.
Program 8FRASCA can be used immediately after this program to graph the generated data. |
| 6FRASCA | This program determines the engines axial bearing loads, annular cavity circumferences, and the annular cavity and its sections centroid radii and their location. |
| 8FRASCA | This program can be used after the programs 3FRASCA, 4FRASCA, and 5FRASCA to graph the VVC temperature and pressure data generated by the respective program sections. |
| CRFRASCA | This program is used to generate the basic design data for an engine with a circular section annular cavity profile and the engine's VVC volume polynomials. |
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( FRE ) Frasca Rotary Engine
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| PROGRAM SECTION 3FRASCA |
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PROGRAM
SECTION: 4FRASCA
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| PROGRAM SECTION: 5FRASCA @ 1500 RPM |
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| PROGRAM SECTION 5FRASCA @ 6000 RPM |
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| PROGRAM SECTION:
6FRASCA
In single undulation and 4 cycle engines, ganging ( i.e. sharing the same power shaft) two rotors will cancel all bearing loading moments and power shaft directed forces ( Z-axis forces) leaving only a force perpendicular to and rotating with the rotor shaft when: the rotors' power cycles are in phase, the rotors' wave surfaces are directed towards the opposite ends of the power shaft, the X-Z and Y-Z planes of the 2 rotor coordinate systems are coincident, the positive X axii of the two rotor coordinate systems point in the same direction from the rotor axis, and the positive Y axii of the two rotor coordinate systems point in the same direction from the rotor axis.  |
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