Patent ID: 9366200
Filing Date: 2016-06-14
CPC Classification: F01B,F02B,F02F

Claim Text:
1. A rotary piston internal combustion engine comprising: a rotating block centered on an axis and with radially extending cylinders; respective pistons in the cylinders; an external stationary case with at least one intake port and exhaust port, an outer surface of the rotating block being a surface of revolution with a straight or curved profile curve and formed with transverse circular side grooves; transverse or side sealing parts in the stationary case and bearing radially inward on the outer surface of the block; respective side seals in the circular side grooves and consisting of circular side sealing segments that are always placed between neighboring transverse sealing strips that are in respective transverse grooves, and these sealing strips extending through the side grooves; respective joints where the side sealing segments and the transverse sealing strips meet and formed with notches for the side sealing segments and transverse sealing strips, the joints each having a cross-section in the shape of an n-polyhedron, where n ranges between 3 and ∝; and springs between the joints and the stationary case, the joints simultaneously extend down to the side sealing segments or transverse sealing strips at floors of their notches to press the sealing strips against the outer surface of the rotating block.