Abstract A rotary-type device having a piston rotor and a ceiling rotor for companionate engagement one with the other on rotation of the same and a housing for the rotors, the piston rotor having a piston with a trailing face adapted to coact cyclically with the trailing edge of a gap in the ceiling rotor into which the piston penetrates on each rotation, with the trailing face of the piston being characterized by a curve which maintains a close labyrinthtype seal as the edge of the gap sweeps across the trailing edge of the piston, the lateral profile of the piston being characterized by a curve such that, where a first circle is defined by a first point on the edge of the ceiling rotor rotating about the center of rotation of said rotor; where a second circle is defined by a second point on the outer surface of the piston rotating about the center of rotation of the piston rotor; where the line joining centers of rotation of said rotors is of such a length that the circles overlap and the circumferences cut said line; where the circles rotate at a constant ratio of rotation in opposite directions; said face curve is the path taken by said first point from its entrance into said second circle to its intersection with said line.
In a rotary engine including a piston rotor including a radially extending piston having a trailing face, a sealing rotor having a gap in circumferential surface with a trailing edge to cyclically sweep over said piston face, said rotors having coplanar axes and arranged for simultaneous cyclical rotation in close, labyrinth-type sealing relation with a housing and for passage of the piston through the gap companionately, said trailing piston face having a lateral profile designated by a first curve generated thus: a. where a first circle is defined by a first point on said edge rotating about the center of rotation of said rotor; b. where a second circle is defined by a second point on the outer surface of the piston rotating about the center of rotation of the piston rotor; c. where the line joining centers of rotation of said rotors is of such a length that said circles overlap and the circumferences cut said line; d. where the circles rotate at a constant ratio of rotation in opposite directions; e. said face curve is the path taken by said first point from its entrance into said second circle to its intersection with said line; means interconnecting said rotors for rotation of the same in opposite directions of rotation at a constant ratio of rotation to cyclically sweep said edge over said face in sealing relation, said piston having a leading piston face which is configured oppositely as a mirror image to that of the trailing face having a lateral profile defined by a face curve generated with respect to said trailing piston face, and the gap in the sealing rotor is provided with a leading edGe to cyclically sweep over said leading piston face and the leading edge of the gap having a cutout for fluid flow communication between the gap and the diminishing volume between the leading piston face and the rotor on sweeping passage of said leading edge over said leading piston face.
Claim 2
Dependent Claim
328 words
In a rotary engine including a piston rotor including a radially extending piston having a trailing face, a sealing rotor having a gap in circumferential surface with a trailing edge to cyclically sweep over said piston face, said rotors having coplanar axes and arranged for simultaneous cyclical rotation in close, labyrinth-type sealing relation with a housing and for passage of the piston through the gap companionately, said trailing piston face having a lateral profile designated by a first curve generated thus: a. where a first circle is defined by a first point on said edge rotating about the center of rotation of said rotor; b. where a second circle is defined by a second point on the outer surface of the piston rotating about the center of rotation of the piston rotor; c. where the line joining centers of rotation of said rotors is of such a length that said circles overlap and the circumferences cut said line; d. where the circles rotate at a constant ratio of rotation in opposite directions; e. said face curve is the path taken by said first point from its entrance into said second circle to its intersection with said line; means interconnecting said rotors for rotation of the same in opposite directions of rotation at a constant ratio of rotation to cyclically sweep said edge over said face in sealing relation, said piston having a leading piston face which is configured oppositely as a mirror image to that of the trailing face having a lateral profile defined by a face curve generated with respect to said trailing piston face, and the gap in the sealing rotor is provided with a leading edGe to cyclically sweep over said leading piston face and the leading edge of the gap having a cutout for fluid flow communication between the gap and the diminishing volume between the leading piston face and the rotor on sweeping passage of said leading edge over said leading piston face.