Rotary expansible chamber devices – Working member has planetary or planetating movement – Plural working members or chambers
Patent
1990-10-15
1991-12-03
Bertsch, Richard A.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Plural working members or chambers
7386434, 418205, F04C 116
Patent
active
050696068
ABSTRACT:
Two essentially identical oval shaped blades each attached rotatably by axles within a cylindrically shaped main chamber of a housing. Each blade has a cross-sectional profile approximating opposing larger radius 90 degree arcs connected by opposing smaller radius 90 degree arcs. Each blade is attached to a rotatable carriage assembly within the housing, and 180 degrees apart in the same orbital path about the rotational axis of the carriage assembly. The rotational axis of the carriage assembly, and the orbital path of the blades about the carriage assembly axis are eccentric relative to the center of the main chamber. A transmission and timing arrangement communicates and coordinates rotational movement between the carriage assembly and blades. The blades are positioned with the length of one blade perpendicular to the other blade length while rotating and orbiting about the axis of the rotating carriage assembly. The maintained perpendicularity between the lengths of the two blades provides continuous close proximity of one blade to the other. As the blades rotate in the same direction and velocity, and orbit about the axis of the rotating carriage assembly, the blades assist in defining expanding and contracting sub-chambers within the main chamber. A fluid input port through the housing is positioned in communication with expanding sub-chambers, and a fluid output port through the housing is positioned in communication with contracting sub-chambers.
REFERENCES:
patent: 178672 (1876-06-01), Reynolds
patent: 2919062 (1959-12-01), Tryhorn
patent: 3121530 (1964-02-01), Lorenz
patent: 3653791 (1972-04-01), McCoy
patent: 3728049 (1973-04-01), Miller, Jr.
patent: 3810723 (1974-05-01), Johnson
Magazine: "Mechanisms, Linkages and Mechanical Controls"-Author: S. Rappaport-Title: Two-Tooth Gear Systems-p. 247, Publisher--: McGraw-Hill Book Company.
Bertsch Richard A.
Cavanaugh David L.
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