DIAPHRAGM ACTUATOR WITH SOLID CENTERS OPERATION METHOD Russian patent published in 2017 - IPC F16K31/145 

FIELD: machine engineering.

SUBSTANCE: in the operation method of the diaphragm actuator with solid centers, consisting in creating the operating fluid overpressure in the housing chamber, limited by one or two diaphragms with rigid centers, connected to the rod and moving of the rod relative to the housing towards the larger effective area, control the direction and magnitude of the rod movement by changing the effective area of the diaphragm, adjusting the area of at least one solid center. The proposed method significantly expands the possibility of implementing the variety of the movement laws for the mobile operating actuator mechanism, including changing the direction of its movement during the unidirectional change in the operating medium pressure, and also actuator control without changing the pressure value in the working chamber.

EFFECT: diaphragm actuator functionality expansion by controlling the diaphragms effective area.

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