ROTARY-VANE DEVICE Russian patent published in 2015 - IPC F01C1/44 F04C2/44 

FIELD: machine building.

SUBSTANCE: invention refers to machine building, particularly to rotary-vane devices, and can be used in internal and external combustion engines, pneumatic motors, compressors, pumps, expanders. A rotary-vane device comprises a casing 1 with end covers and a rotor 3 with blades 4 installed not coaxially in it. Grooves 8 are provided on the inner surface of the end covers along the connection line of the end covers with the casing 1. Each blade 4 is coupled with the rotor 3 via the axis 5 parallel to the rotor 3 axis, and is fitted by a rolling-sealing unit 6 at the end with this unit consisting of three rollers or balls set on the same axis. The blades 4 rest against the grooves 8 by the extreme respectively rollers or balls of the rolling-sealing unit, without touching the outer edges of the grooves 8, and against the inner surface of the casing 1 by the central roller.

EFFECT: invention is aimed at the device efficiency improvement, reduced friction wear of parts in the pair blade-casing.

3 cl, 4 dwg