OPERATION OF GAS-FLUID PLANT AND DEVICE TO THIS END Russian patent published in 2015 - IPC F04B19/06 

FIELD: engines and pumps.

SUBSTANCE: at starting of claimed plant, fluid chamber is connected with fluid suction line past suction valve unless gas chamber delivery pressure reaches the preset magnitude. Gas-fluid plant consists of cylinder 1 with piston 3 fitted therein with minimum clearance 2 to divide said cylinder 1 into gas fluid chamber 4 and gas chamber 5. Said chambers are communicated with gas suction line 6 and gas delivery line 7 and with fluid suction and delivery lines 8 and 9 via suction valves 10, 11 and delivery valves 12, 13. Fluid chamber 5 is additionally connected with fluid suction line 8 via slide valve 14, and with inlet 15 and outlet 16 via moving element 17 with channel 18, chamber 19 by calibrated compression spring 20. Top end of element 17 has limiting ledge 21 while bottom end has limiting ledge 22. This makes the plat run in optimum mode whereat fluid forced by compression in chamber 5 into clearance 2 is displaced back at upward stroke of piston 3 into chamber 5 by gas compressed in chamber 4.

EFFECT: ruled out notable fluid leak into the chamber, prevented hydroblow.

2 cl, 2 dwg