Hydraulic Equipment of compressed natural gas filling and Gas filling control methods

摘要

Said Equipment includes a Hydraulic Power Unit, a control unit and at least one Unit of CNG Supply. The Hydraulic Power Unit comprises a Tank for storing Medium Hydraulic pressure pump, closed Circuits to provide pressurized Hydraulic CNG supply to the unit.Pump closed circuit has a First Through Hole, a Second through hole and an inclined plate to control the operating States of the first and second holes.The Hydraulic Power Unit also comprises a Reversing Valve to change the position of the inclined Plate, a Supply Pipe through which the first and the second through holes are connected to the Tank.A First Hydraulic Pipe Connected between the first through hole and a First Pipe filling and Return of the team and a Second Hydraulic Pipe Connected between the second Orifice and a Second Pipe filling and Return of the team