Patent ID: 9618159
Date: 2017-04-11
CPC Classifications: F17C

Claim:
1. A system for dispensing a high pressure compressed gas using hydraulic fluid, comprising a hydraulic pressurization unity (HPU), a semitrailer comprising compressed gas cylinders, wherein each of the compressed gas cylinders comprises an open lower end for receiving a hydraulic fluid and open upper end for dispensing the compressed gas to a customer, wherein the HPU comprises: an oil reservoir connected to a pump assembly and an electric motor, which moves the hydraulic fluid to a supplying block; the supplying block comprising of a directional valve, a relief valve, a check valve, and a pressure transmitter able to drive the hydraulic fluid from the oil reservoir to the compressed gas cylinders through a supplying pipe, which then drives the compressed gas out of the compressed gas cylinders; and photoelectric sensors, pneumatically actuated valves, a first passage valve having a opening, and a second passage valve, which does not have the opening, being able to return the hydraulic fluid to the oil reservoir, through a returning pipe after removing of 95% of a volumetric capacity of each of the gas cylinders, wherein the compressed gas cylinders of the semitrailer receive the hydraulic fluid from the oil reservoir through the supplying pipe, which connects to the open lower end of the cylinders of a pallet by a single control valve and the hydraulic fluid returns to the oil reservoir via the single control valve flowing through the returning pipe wherein the compressed gas cylinders of the semitrailer include: