INTERNAL ENGAGEMENT ROTARY MACHINE Russian patent published in 2007 - IPC F01C1/10 F04C2/10 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to positive-displacement hydraulic machines, namely, to hydraulic motors and pumps with internal engagement of rotors, particularly, to multiphase usage. Proposed machine has housing, end face covers, outer rotor with internal teeth and inner rotor with external teeth installed inside outer rotor with eccentricity. Ring end face disks are installed between end face covers and end faces of rotors, being rigidly secured on outer rotor and adjoining to end faces of rotor, coaxially with the rotor and with possibility of rotation around its axle on bearing arranged inside ring cylindrical space of disk. Machine has bearing lubrication system with device for building directed circulation of oil, and compensating space hydraulically communicated with oil main line and support-and-sealing members. Each of said members, being installed on shaft and made in form of stepped ring coaxial to end face disk with outer diameter of steps decreasing in direction of rotors, is furnished with seal of each step. Two steps of ring are arranged inside ring space of disk. Bearing is installed on outer diameter of first step of said ring having smallest outer diameter. Second step of support-and-sealing member is furnished with floating bushing installed outer diameter of said step for axial fixing of bearing on its outer diameter. Support-and-sealing members are provided with radial and axial channels communicating with main oil line after device building directed circulation of oil and bearings.

EFFECT: improved reliability and increased service line.

6 cl, 1 dwg