BLADED INCOMPLETELY-TURNABLE HYDRAULIC MOTOR Russian patent published in 2005 - IPC

FIELD: drives for various mechanisms.

SUBSTANCE: proposed hydraulic motor has housing with two separating stops and two-blade coil-type rotor; cavities between them form working chambers of hydraulic motor. Sectional coil-type rotor has two bushes with insert placed between them; this insert has cylindrical central part and two opposite blades; bushes and insert are tightened in housing on shaft; holes made in blades of insert and bushes in parallel with shaft axis are used for mounting pins. At the end of travel of rotor blades, damping moment is created on rotor in hydraulic motor by communicating the working chamber of hydraulic motor forcing out the working fluid with working fluid delivery passage through groove on inner plane of rotor bush and central hole in plunger received by bore separating stop which is pressed to bush plane by means of spring and pressure of working fluid.

EFFECT: reduction of mass and overall dimensions.

3 dwg