Internal-combustion engines – Rotary – With means to control degree of compression
Patent
1995-07-19
1996-07-23
Koczo, Michael
Internal-combustion engines
Rotary
With means to control degree of compression
123211, 123245, F02B 5312
Patent
active
055379737
ABSTRACT:
A rotary engine in which two rotors having interleaving radial vanes revolve inside a cylindrical cavity and are connected to a planetary output gear system which causes them to alternately speed up and slow down. The radial vanes divide the cylindrical cavity into four chambers in which intake, compression, explosion and exhaustion occur. At least two glow plugs, each of which contains a coil of refractory wire, are located at different angular positions relative to the axis of the cavity. The glow plugs are selected so that one, which cools more rapidly than the other, will cause ignition at an earlier time than another of the glow plugs that cools more slowly. A passageway containing an adjustable, pressure-sensitive, valve vents the compression chamber to the intake chamber to allow the compression ratio to be varied, to allow a greater expansion ratio than compression ratio, and to allow adjustment of the time at which ignition occurs during each cycle.
REFERENCES:
patent: 3356079 (1967-12-01), Rolfsmeyer
patent: 5433179 (1995-07-01), Wittry
Gierke, C. David, 2-Stroke Glow Engines for R/C Aircraft, Air Age Publishing, Wilton CT (194) pp. 20-24, 28, 29.
Higley, Harry, All About Engines Harry B. Higley & Sons, Inc, Glenwood, IL (1992) p. 29.
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