DOUBLE-ACTION BAROSTATIC VALVE Russian patent published in 2015 - IPC F02C7/00 F16K17/196 

FIELD: machine building.

SUBSTANCE: invention relates to design of elements of the gas-turbine engines (GTE), and can be used in oil systems of the aviation GTE to maintain set pressure of the air-gas mixture in the breathing system of the oil cavities. The double-action barostatic valve for the breathing system of the aviation gas-turbine engine contains casing with two poppet valves connected in parallel to the breathing main line, one valve is barostatic, connected with sensing element receiving ambient pressure, and other valve is overpressure valve in breathing system. The valves are installed in opposite places relatively to the breathing main line. The sensing element is made in form of a package of individual membrane boxes, pressed through tray of the barostatic valve to the movable support installed in the casing at the opposite side of the package. The support is provided with the device fixing mutual position of the tray of the barostatic valve and its seat.

EFFECT: increased reliability of the unit operation due to pre-adjustment of the initial stroke of the barostatic valve.

1 dwg