RODLESS MECHANISM OF THE PISTON MACHINE Russian patent published in 2022 - IPC F01B9/06 F02B75/32 F16H21/18 

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in piston positive displacement machines. The rodless mechanism of a piston machine with opposite piston groups (2), (4) in pairs, the axes of which are located at an angle to each other, contains a shaft (7) consisting of parts (7a), (7b) with an eccentric section, and a coupled eccentric (10) connected to an eccentric section of the shaft (7) with the possibility of rotation. The coupled eccentric (10) has two opposite eccentric sections (11), (12) connected by means of rod bearings and a rod with movable links of cylinder-piston groups (1), (2), (3), (4). The shaft (7) with an eccentric section is made externally, mounted on bearings (6) on the inner central shaft (5). The eccentric section is located inside the shaft (7). The opposite eccentric sections of the paired eccentric (10) are made on its inner surface. Rods (14), (16) of movable links in each pair of cylinder-piston groups (1), (2), (3), (4) are mounted with rod bearings (13) (15) inside each of the eccentrics.

EFFECT: reducing friction in the mechanism and increasing the service life of the mechanism while reducing lubrication requirements.

4 cl, 5 dwg