DEVICE FOR CONTROLLING THE PUSH OF A FLUID USING TURBULENCES

摘要

PCT No. PCT/CH83/00122 Sec. 371 Date Jul. 6, 1984 Sec. 102(e) Date Jul. 6, 1984 PCT Filed Nov. 8, 1983 PCT Pub. No. WO84/01930 PCT Pub. Date May 24, 1984.A regulator having turbulence generating device for controlling thrust. A differential piston (2) is biased by a spring (3) located in a discharge channel (8a) of a medium under pressure. The spring (3) is weighted in such a way that it is compressed at a given pressure within the container so that the differential piston (2) takes a first end position and decreases the opening of the discharge channel (8a) to a minimum. The spring (3) expands proportionally to the pressure drop due to the discharge of the medium (18) from the container and shifts the piston (2) so that the opening of the discharge channel (8a) increases gradually until the piston (2) has reached a second end position as soon as a given minimum pressure has been reached in the container. The shape of the piston (2) in comparison to that of the discharge channel (8a) is chosen in such a way that through its displacement it guarantees that the sum of the multiplication of the pressure remaining in the container and the remaining opening of the discharge channel (8a) remains at least approximately constant. The discharge channel (8a) ends in a chamber (23) from which channels (24) radiate, each of which forms a tangent with the circumference of the chamber (23) and ends in an annular channel (19a) from which supply channels (21) of the spray nozzle (5) radiate. Thrust control takes place initially by the turbulence provided by the channels and later by the weighted spring (3).