Spray nozzle with floating turbine

A spray nozzle, comprising:

• a nozzle body defining a first surface and a fluid passage;
• a cap defining a second surface, the cap connected to the nozzle body such that the first surface of the nozzle body and the second surface of the cap form an annular nozzle opening therebetween, the cap biased toward the nozzle body to allow the spacing between the first surface and the second surface to increase in response to an increase in fluid pressure in the nozzle opening, the cap having a flow passage extending therethrough to permit fluid to pass through the cap and bypass the nozzle opening;
• a turbine having a plurality of radially extending fins circumferentially positioned about the nozzle opening for directing the flow of fluid exiting the nozzle opening, the turbine being rotatable about the nozzle opening and the nozzle opening being free of any portion of the turbine;
• and
• a reverser member coupled to the turbine such that the reverser member is caused to rotate in response to rotation of the turbine, the reverser member including a cup portion having a bottom and a circumferential sidewall extending from the bottom, the reverser member positioned below the cap with an entirety of the cup portion positioned below a lowermost extent of the cap in a vertically spaced relationship to the cap and the bottom axially aligned with the flow passage to intercept the flow of fluid from the flow passage of the cap,
• wherein the turbine has a mounting ring from which the plurality of radially extending fins extend,
• wherein the spray nozzle further comprises a retaining member having a ring shape and positioned about the nozzle body and over the mounting ring of the turbine, and
• wherein the flow passage of the cap is sized such that a portion of the fluid flowing through the spray nozzle flows through the flow passage of the cap and contacts the inside of the cup portion causing a downward force on the turbine such that the downward force applied to the cup portion balances an upward force created by the fluid exiting the nozzle opening to cause the turbine to remain spaced from the cap and the retaining member so that a cushion of water forms between the turbine and the retaining member as the turbine rotates.