'Energy recovery system for hydraulic lifts'

摘要

1. Energy recovery for hydraulic lifts, particularly for elevators provided with one or more cylinders or hydraulic pistons, to whose rod or rods is associated elevator car which ascends as hydraulic equipment introduces fluid pressure in the chamber said piston or pistons, and in which the descent of the cabin by simple evacuation of existing hydraulic fluid in the piston chamber or each piston, wherein the line which connects the hydraulic unit with the piston chamber or piston associated with the elevator, a valve group in the maneuver of descent of the cabin diverts hydraulic fluid to a supply line of a hydraulic turbine, from which said fluid is set back into the tank of the hydraulic unit, being provided that the axis of said turbine is mechanically coupled to the shaft of an electric generator, or to the p ropia pump drive system connected to the motor will it work like current generator so that the oil pressure during the retraction maneuver piston hydraulic pistons is converted into electrical energy storable in a battery or dispensable to the network through the corresponding counter.