ROTARY MACHINE Russian patent published in 2002 - IPC

FIELD: mechanical engineering. SUBSTANCE: invention relates to hydraulic and pneumatic machines which can be used as pumps, compressors and motors. Proposed rotary machine has housing with dividers and end face covers forming working spaces communicating with suction and delivery channels. Rotor with radial slots is installed in housing coaxially with housing. Blades are fitted in rotor slots. Cylindrical segments are made on end faces of blades. Machine has partitions with cylindrical segments and radial slots and blade forced displacement mechanism furnished with gear, shaft-gears with cams and pushers. Shape of each cam is made so that value of difference of maximum distance from its axis of rotation to point of contact with pusher at one side of plane passing through axis of cam rotation and radius of semicircumferences on other side of said plane is equal to blade working height. Cylindrical segments made of end faces of pushers pointed to housing engage with cylindrical segments of blades. EFFECT: increased service life of rotary machine. 18 dwg