초록 ▼

The invention is directed to a circumferential actuator for actively controlling and generating pressure waves in a piping system having a fluid or a fluid flow therein. The circumferential actuator includes a casing, a plurality of actuator units mounted in the casing for generating controlled pres

The invention is directed to a circumferential actuator for actively controlling and generating pressure waves in a piping system having a fluid or a fluid flow therein. The circumferential actuator includes a casing, a plurality of actuator units mounted in the casing for generating controlled pressure waves, a plurality of amplifiers for electronically conditioning the force generated by each of the plurality of actuator units, a controller for providing the input signals to the plurality of actuator units for controlling the phase and amplitude of the generated pressure wave, and a pressure compensating system for providing a balancing force to each actuator unit. The casing is adapted for interconnection in fluid communication with the piping system for passing the piping system flow therethrough. The plurality of actuator units are arranged axi-symmetrically around the casing. The plurality of actuators units are preferably arranged in at least 3 collocated pairs of actuators units mounted axi-symmetrically in the casing. The collocated pairs form two adjacent, axially aligned rings of actuator units. The pressure compensating system is interconnected with the plurality of actuator units and acts to provide a substantially equal pressure to each of the plurality of actuator units.

대표청구항 ▼

A circumferential actuator for a piping system, the piping system having a fluid therein wherein the fluid has a static pressure and a dynamic pressure associated therewith, said actuator comprising: a casing having an inner surface defining an inner passage, said casing adapted for being interconne

A circumferential actuator for a piping system, the piping system having a fluid therein wherein the fluid has a static pressure and a dynamic pressure associated therewith, said actuator comprising: a casing having an inner surface defining an inner passage, said casing adapted for being interconnected in fluid communication with the piping system for passing the piping system fluid at the associated pressure therethrough; a plurality of actuator units arranged axi-symmetrically around said casing, each of said plurality of actuator units functioning to generate a variable pressure signal wherein said variable pressure signal is transmitted to said inner passage; and means for individually controlling said variable pressure signal generated by each of said plurality of actuator units, said controlling means providing controlled phase and amplitude input signals for controlling a phase and an amplitude of each of said variable pressure signals.