HYDRAULIC ENERGY RECOVERY SYSTEM

摘要

The invention relates to a hydraulic energy recovery system. The system includes at least one hydraulic motor (10), two main channels (12, 14) serving as the feed channel or the exhaust channel of said at least one motor, a low-pressure fluid source (16, 52, R) and a high-pressure accumulator (20) forming a high-pressure fluid source. Said system can operate in an energy recovery mode, in which the main feed channel (12) is connected to the low-pressure fluid source (16, 52) and the main exhaust channel (14) is connected to the high-pressure accumulator (20), and an energy release mode, in which the connections are reversed. The low-pressure fluid source comprises a high-flow booster pump (16) which can deliver a sufficient fluid flow in order to supply the at least one hydraulic motor (10) with fluid while said motor is operating at maximum speed in the energy recovery mode and an adjustable pressure limiter (52) which can be controlled in order to vary the pressure of the fluid at the outlet of the low-pressure fluid source.