A rotating sprinkler for intermittently emitting a liquid supplied by a pulsating device that forms pulses that have a beginning and an end. The sprinkler has a rotating portion that can rotate about an axis while emitting the liquid pulses to the outside environment. The sprinkler provides for rota
A rotating sprinkler for intermittently emitting a liquid supplied by a pulsating device that forms pulses that have a beginning and an end. The sprinkler has a rotating portion that can rotate about an axis while emitting the liquid pulses to the outside environment. The sprinkler provides for rotation of the rotating portion during a portion of each pulse and for stopping rotation of the rotating portion during another portion of the pulse.
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1. A rotating sprinkler for use with a pulsating device, the pulsating device being configured to form liquid pulses and each liquid pulse has a beginning when the pulse begins and an end when the pulse ends,the sprinkler comprising a rotating portion configured to move in rotation about an axis, an
1. A rotating sprinkler for use with a pulsating device, the pulsating device being configured to form liquid pulses and each liquid pulse has a beginning when the pulse begins and an end when the pulse ends,the sprinkler comprising a rotating portion configured to move in rotation about an axis, and configured to emit the liquid pulses to the outside environment, whereinthe rotating portion is configured to initially rotate during emission of each liquid pulse, the rotating portion is configured to stop rotating before the end of each liquid pulse, andthe rotating portion is configured to perform a terminal rotational movement after each liquid pulse,wherein the stopping of rotation of the rotating portion will occur after no more than 85% of a pulse time Tp has passed, and wherein the pulse time Tp is a time measured between the beginning and the end of the pulse. 2. The rotating sprinkler according to claim 1, wherein the rotation of the rotating portion is urged by the pulses emitted to the outside environment. 3. The rotating sprinkler according to claim 1, wherein the liquid pulses urge the rotating portion to move along the axis. 4. The rotating sprinkler according to claim 3, wherein before or when starting to rotate the rotating portion moves up along the axis and after stopping to rotate the rotating portion moves down along the axis. 5. The rotating sprinkler according to claim 4 and comprising a biasing means adapted to urge the rotating portion to move down along the axis. 6. The rotating sprinkler according to claim 1, comprising also a static portion, and wherein movement of the rotating portion is controlled by interaction between the rotating and static portions. 7. A rotating sprinkler for use with a pulsating device, the pulsating device being configured to form liquid pulses and each liquid pulse has beginning when the pulse begins and an end when the pulse ends,the sprinkler comprising a rotating portion configured to move in rotation about an axis, and configured to emit the liquid pulses to the outside environment, whereinthe rotating portion is configured to initially rotate during emission of each liquid pulse, andthe rotating portion is configured to stop rotating before the end of each liquid pulse,wherein the stopping of rotation of the rotating portion will occur after no more than 85% of a pulse time Tp has passed, and wherein the pulse time Tp is a time measured between the beginning and the end of the pulse,the sprinkler further comprising first and second members, the first member being fixed to move together with the rotating portion, and the second member not being fixed to move together with the rotating portion along at least one of the rotational or axial direction,wherein the rotation of the rotating portion during emission of a liquid pulse includes the second member moving along the rotational directions after the first member moves along the rotational direction. 8. The rotating sprinkler according to claim 1, wherein the rotating portion is adapted to stop rotating only once before the end of each liquid pulse. 9. The rotating sprinkler according to claim 1, wherein the stopping of rotation of the rotating portion will occur after no more than 75% of the pulse time Tp has passed, and wherein the pulse time Tp is a time measured between the beginning and the end of a pulse. 10. The rotating sprinkler according to claim 1, wherein an angular rotational movement of the rotating portion between beginnings of subsequent pulses is “theta”, and wherein 360° divided by “theta” is not equal to an integer. 11. The rotating sprinkler according to claim 1, wherein the rotating portion comprises a merge positioned along the axis, at least one arm extending from the merge in a direction away from the axis, and a nozzle positioned at the distal end of each arm. 12. The rotating sprinkler according to claim 1, wherein the rotating portion further comprises a disk-shaped rotor that extends at least partially about the axis and in a radial outward direction away from the axis, the rotor having rotor teeth on at least one of the upper and lower sides of the disk-shaped rotor. 13. The rotating sprinkler according to claim 12, wherein the disk-shaped rotor has a first member and a second member, the first member rotatable separate from the second member, the first member having rotor teeth on one of the upper and lower sides thereof and the second member having rotor teeth on the other of the upper and lower sides thereof. 14. The rotating sprinkler according to claim 1, wherein the rotating portion includes a stem having a disk-shaped first member with a least one rotor tooth on a peripheral surface thereof, an annular second member surrounds the first member, the second member having a set of grooved guiding teeth on an inner surface thereof, the second member being capable of rotating relative to a static portion of the sprinkler.
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