REGULATOR AND GAS FLOW REGULATION METHOD Russian patent published in 2014 - IPC G05D16/00 

FIELD: machine building.

SUBSTANCE: regulator comprises a casing and three chambers in it divided by walls: a high-pressure chamber (HPC) and a reduced pressure chamber (RPC), a regulation chamber (RC), a hole with a seat, a partition with a plunger dividing the RC into a piston cavity and an annular cavity, a valve with a sealing element set in the RPC, the first channel connecting the RPC with the RC piston cavity, the second channel with a regulated check valve connecting the RC annular cavity with the environment, the third channel in the casing connecting the RPC with the RC annular cavity. Method of gas flow regulation in the regulator involves: supply of gas to HPC, displacement of the partition with the plunger and formation of a gap between the seat and the valve sealing element, coming of gas flow into the RPC and respectively to the gas consumer, from RPC through the first channel to the RC piston cavity, flowing of gas from the RPC through the third channel with a throttle to the RC annular cavity and back, provision for difference of pressures and forces resulting in the displacement of the partition with the plunger and the valve, change of the gap between the valve sealing element and the seat and regulation of the supply and pressure of gas coming to the RPC relevant to the above change.

EFFECT: provision for automatic regulation of the specified reduced pressure of gas supplied from the source to the consumer at low amplitude of fluctuations.

9 cl, 4 dwg