System for cooling the rotary engine rotor

A polygonal rotor for rotary engines comprising:

• a polygonal rotor body of generally equilateral, triangular shape having, in an axially transverse plane relative to the rotation of said rotor, an outer peripheral wall, and an inner wall defining a central annular open portion, said inner wall having one or more recessions defined generally in each apex of said rotor body forming axial cooling passages therethrough, each of said coolant passage provided with one or more cooling ribs extending in a generally axial manner;
• one or more bearing race inserts substantially engaged with the non-recessed portions of said rotor body, said inserts providing a bearing race for supporting one or more bearing assemblies;
• said rotor further having, in an axially transverse plane relative to the rotation of said rotor, one or more coolant channels defined between said one or more bearing race inserts and said rotor body whereby coolant directly contacts said one or more bearing race inserts to enhance cooling thereof;
• and
• each of said coolant channels fluidly communicating one cooling passage with an adjacent coolant passage thereby allowing for the fluid passage of coolant therebetween.

A polygonal rotor for rotary engines comprising:

• a rotor body;
• means for supporting a rotor bearing in said rotor body;
• said rotor body being of generally equilateral, triangular shape and having, in an axially transverse plane relative to the rotation of said rotor, an outer peripheral wall, an inner wall defining a central annular open portion of generally circular shape, said inner wall having substantially semi-circular coolant passages disposed through each apex of said rotor body, each of said coolant passages being provided with one or more coolant ribs;
• said means for supporting said rotor bearing being fittable within said central annular open portion of said rotor body;
• and
• said rotor being further provided with one or more coolant channels fluidly interconnecting said coolant passages to thereby allow the through passage of coolant therebetween, said one or more coolant channels being defined between said means for supporting a rotor bearing and said central annular open portion of said rotor body whereby coolant directly contacts said means for supporting a rotor bearing.