CONTROL DISK GATE Russian patent published in 2011 - IPC F16K1/22 F16K47/04 

FIELD: machine building.

SUBSTANCE: gate consists of case 1 with inlet 2 and outlet 3 orifices, of rotary disk 4 connected with rod 5 and of packing elements 6 of rod 5. Rotary disk 4 is made as a rigid space structure of two external impermeable thin-wall disks 8 parallel arranged perpendicular to axis of case 1 with a gap and tied by means of coupling elements 7. Also, the structure consists of at least one internal permeable thin-wall disk 9 with partial or total perforation. Coupling elements 7 are made, for example, as partitions 10 between above said thin-wall disks 8 and 9 so, that there are formed through channels for flow of working medium, when the gate is completely open. External surface of thin-wall disks 8 and 9 is spherical and faces spherical surface of bigger radius of insertions 12 installed coaxially in case 1 and with a gap on both sides from the rotary disk.

EFFECT: expanded functionality due to wider range and smoothness of control; decreased noise level and erosion wear of gate elements.

3 cl, 7 dwg