LIMIT GATE OF START-UP AND RECEIVING CHAMBERS OF FLOW MEDIUMS OF MAINS Russian patent published in 2010 - IPC B08B9/57 F16J13/04 F16J13/24 

FIELD: gas-and-oil industry.

SUBSTANCE: invention can be implemented in gas and oil industry for equipping chambers of start-up and reception of flow mediums of mains. The gate consists of a cylinder case with a coaming, and of a flap beagle cover, pressure tight communicated with the coaming and a hinged on the case cross bar by means of a screw drive facilitating axial rotation of this cover; further the gate consists of a gate facility of the cover and of a facility for fixing the cross bar in operating position. The gate facility of the cover corresponds to retractable journals positioned in radial cylinder cavities created in the cover along perimetre of its flange and interacting with radial orifices made in the coaming of the case coaxially with cylinder cavities of the cover. The radial cylinder cavities communicate with the cavity of the chamber, while the retractable journals are made in form of pistons, ends of which interact with rods of spring pushers installed outside along perimetre of the coaming. Also the facility for fixing the cross bar in an operation position consists of two sliding pins connecting ears of the cross bar with ears of the coaming.

EFFECT: reduced specific amount of metal for gate.

10 cl, 6 dwg