System for recovering hydraulic energy

摘要

The system has a hydraulic transmission including hydraulic pumps coupled to a water wheel (12) and installed in parallel on a hydraulic circuit. A hydraulic motor is coupled to an electric generator (18) i.e. synchronous alternator, and the hydraulic circuit connects the hydraulic pumps and the hydraulic motor. A speed regulation unit maintains constant speed of the hydraulic motor with variable speed of the wheel. An axle (14) of the wheel is mounted in a pivoting arm (15), and a hydraulic jack (16) is provided in the pivoting arm for raising and lowering the wheel in a flooding period. Independent claims are also included for the following: (1) a navigable stream or river ridge crossing system (2) a method for regulating a hydraulic energy recovering system.