Rotary stream sprinkler unit with rotor damping means
First Claim
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1. A rotating stream sprinkler unit comprising:
- a tubular housing having a central axis, an inlet, an outlet, and a flow passage communicating therebetween for conducting a primary stream of water from said inlet to said outlet;
distributor means rotatably mounted at said outlet for receiving said primary stream of water, for rotating in response thereto, and for directing said stream outward from the axis of said housing over a selected area;
damping means including a damping fluid disposed in said housing up stream of said outlet and operatively connected to said distributor means by a rotatable shaft for controlling the velocity of rotation thereof; and
means for equalizing pressure between said primary stream of water and said damping fluid.
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Abstract
A rotary stream sprinkler unit comprises a housing having a water flow passage in which is disposed a flow control unit having one or more passages configured to control the volume and pressure of a stream, which strikes and rotates a self-propelled rotary distributor head rotatably mounted at the outlet of the housing for dividing each stream into a plurality of final streams, and rotating each of the final streams through a selected arc during the rotation of the rotary head, with a pressure compensated damping device in the housing connected to the rotary head by means of a shaft supported by a resilient member at the outlet for controlling the rotational velocity thereof.
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Citations
20 Claims
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1. A rotating stream sprinkler unit comprising:
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a tubular housing having a central axis, an inlet, an outlet, and a flow passage communicating therebetween for conducting a primary stream of water from said inlet to said outlet; distributor means rotatably mounted at said outlet for receiving said primary stream of water, for rotating in response thereto, and for directing said stream outward from the axis of said housing over a selected area;
damping means including a damping fluid disposed in said housing up stream of said outlet and operatively connected to said distributor means by a rotatable shaft for controlling the velocity of rotation thereof; andmeans for equalizing pressure between said primary stream of water and said damping fluid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A rotary stream sprinkler unit comprising:
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a tubular housing having a central axis, an inlet, an outlet, and a flow passage communicating therebetween for conducting a primary stream of water from said inlet to said outlet; an elongated rotor shaft rotatably mounted at said outlet and having an inner end and an outer end; distributor means mounted on the outer end of said shaft for receiving said primary stream of water, for rotating in response thereto, and for directing said stream outward from the axis of said housing over a selected area; and damping means including a damping fluid disposed therein, said damping means having pressure equalizing means therein for equalizing pressure between said damping fluid and said primary stream of water, said damping means being disposed in said housing on the inner end of said elongated shaft for controlling the velocity of rotation of said distributor means. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A rotary stream sprinkler unit comprising:
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an elongated generally cylindrical housing having generally coaxially disposed inlet means and outlet means at opposite ends thereof; a flow passage in said housing for communicating a stream of fluid from said inlet means to said outlet means; flow stream generating means comprising an elongated nozzle in said housing at said outlet means for generating a predetermined shaped flow stream at said outlet means, said elongated passages having a length that is greater than the diameter; combined turbine and distributor means rotatably mounted at said outlet for receiving said primary stream of water, for rotating in response thereto, and for directing said stream outward from a longitudinal axis of said housing over a selected area; and damping means including a damping fluid therein, said damping means having pressure equalizing means therein for equalizing pressure between said damping fluid and said stream of fluid operatively connected to said distributor means for controlling the velocity of rotation thereof. - View Dependent Claims (18, 19, 20)
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Specification