LIFT WHOSE COUNTERWEIGHT SERVES AS PLUNGER OF MOVING HYDRODYNAMICDEVICE WHICH GENERATES AND CONTROLS MOVEMENT Russian patent published in 2006 - IPC B66B9/04 B66B17/12 

FIELD: mechanical engineering; lifts and elevators.

SUBSTANCE: invention relates to lifts whose counterweight serves as plunger of moving device with liquid medium which generates and controls travel of lift. Proposed lift has lift cabin 2 moving upwards and downwards in lift well and supported by cable 4 laid to pulley 5 and changing its direction to counterweight balanced with said lift cabin 2. Pulley 5 is supported from lift well walls and is in state of free rotation. Balanced counterweight is hollow piston-counterweight 6 arranged in cylinder 7. The latter is installed vertically in lift well adjacent to lift cabin 2, hollow piston-counterweight 6 and cylinder 7 being component part of moving device with liquid medium which provides upwards travel of lift cabin. Moving device is liquid medium forms closed circuit containing pipeline for circulating liquid medium and drive pump 19 connected with valve gear.

EFFECT: improved adaptability to assembling and operating of lift.

18 cl, 12 dwg