Rotor engine sealing fin

A rotor engine sealing fin is used for a rotor engine and comprises a sealing fin body. The sealing fin body is installed at the top end of a rotor. End face sealing elastic elements are arranged at both the two ends of the sealing fin body. A lateral sealing elastic element is arranged on the side face of the sealing fin body. A bottom elastic element is arranged at the bottom of the sealing finbody. The end face sealing elastic elements comprise first L-shaped end face sealing grooves formed in the end of the sealing fin body, and second L-shaped end face sealing grooves opposite to the first L-shaped end face sealing grooves. End face sealing elastomers are installed between the first L-shaped end face sealing grooves and the second L-shaped end face sealing grooves. The small rotor engine radial sealing fin is reasonable in structure and reliable in work, effective sealing is achieved through a flexible work mode of the radial sealing fin, and operation performance of the rotor engine is improved. 一种转子发动机