Abstract A vaned rotary-type engine having a rotor assembly mounted for rotation within a cylindrical surface, said rotor assembly being eccentrically mounted with vanes forming chambers therebetween. The rotation of the vanes continuously varies the size of the chambers around the cylindrical surface between a maximum size at an air inlet to a minimum size at a point approximately 180* therefrom where a combustible mixture which has been formed is ignited. The size of the chamber then increases to the exhaust outlet approximately 180* therefrom. To control the compression ratio and the amount of air being compressed a section of the cylindrical surface on the compression side is made movable so that it can be hinged outwardly allowing air to bleed from the variable chambers as they advance to their smallest volume. This section is movable for predetermined positioning by a control such as a fuel control or throttle lever to provide increased compression leakage as power requirements decrease.
In a rotary internal combustion engine having a housing with a cylindrical chamber therein, said rotor means forming variablevolume operating chambers as it rotates within said cylindrical chamber of said housing, said chambers being formed by vanes which project from the rotor towards the cylindrical surface of said cylindrical chamber, an inlet located adjacent the rotor means where the variable-volume chamber is substantially at its maximum size and starting to decrease, an opeNing formed in the cylindrical surface of the operating chamber extends from a point adjacent the inlet to a point where the size of the chambers have been substantially decreased, a cover member located in this opening has an inner surface which conforms with the remainder of the cylindrical surface of the housing, means pivotally mounting said cover member downstream of the inlet adjacent the point where the size of the chambers have been substantially decreased, means for pivotally moving said cover member outwardly about said means pivotally mounting said cover to form a variably increasing bleed from one variable-volume operating chamber towards an adjacent rearward chamber to simultaneously control the compression ratio and the amount of air being compressed, and stop means positioned with relation to said cover member to prevent the cover member from moving too far inwardly.
Claim 2
Dependent Claim
212 words
In a rotary internal combustion engine having a housing with a cylindrical chamber therein, said rotor means forming variablevolume operating chambers as it rotates within said cylindrical chamber of said housing, said chambers being formed by vanes which project from the rotor towards the cylindrical surface of said cylindrical chamber, an inlet located adjacent the rotor means where the variable-volume chamber is substantially at its maximum size and starting to decrease, an opeNing formed in the cylindrical surface of the operating chamber extends from a point adjacent the inlet to a point where the size of the chambers have been substantially decreased, a cover member located in this opening has an inner surface which conforms with the remainder of the cylindrical surface of the housing, means pivotally mounting said cover member downstream of the inlet adjacent the point where the size of the chambers have been substantially decreased, means for pivotally moving said cover member outwardly about said means pivotally mounting said cover to form a variably increasing bleed from one variable-volume operating chamber towards an adjacent rearward chamber to simultaneously control the compression ratio and the amount of air being compressed, and stop means positioned with relation to said cover member to prevent the cover member from moving too far inwardly.
Claim 3
Dependent Claim
32 words
An engine as set forth in claim 1 wherein said opening has a triangularlike shape for allowing changes in the bleed rate with respect to the means pivotally mounting said cover member.