US Patent 12110819 Side plate for rotary engine

A side housing for a rotary internal combustion engine, has: a side wall defining first threads, the first threads extending around a central axis; a side plate having a rotor-engaging side facing away from the side wall and a back side opposite the rotor-engaging side and facing the side wall; and a nut rotatable relative to the side plate about the central axis, the nut and the side plate axially locked to one another, the nut defining second threads extending around the central axis, the side plate secured to the side wall via a threading engagement between the first threads of the side wall and the second threads of the nut.