HYDRAULIC VARIATOR OF HIGH GEAR RATIO Russian patent published in 2012 - IPC F16H39/32 F16H61/437 

FIELD: mechanical engineering.

SUBSTANCE: hydraulic variator consists of a hydraulic pump and a hydraulic engine. The hydraulic pump has suction (1) and discharge (2) nozzles of a motionless static stator (3). The stator (3) comprises a concentric rotor (4) lengthwise provided with through channels (5) which has movable plate elements (6) separating suction (7) and discharge (8) cavities. The stator (3) represents a hollow cylinder and provided with a flat rectangular support point (9). The platform (9) of the stator has a volume rectangular window (10) which receives a movable sliding plate (11) of the form of a jack rectangular plate with an internal cylindrical socket (12). This plate (11) is moveable inside the window changing the internal cavity volume between the rotor (4) and the internal socket (12) of the plate (11). Besides, the plate (10) is equipped with a position sensor (17). The hydraulic engine is similar to the hydraulic pump and coupled with the hydraulic pump through the nozzle (2).

EFFECT: increased gear ratio, downsizing, improved dynamic parameters.

5 cl, 7 dwg