Sprinkler with pressure regulation
First Claim
1. An apparatus to regulate the flow of water through a sprinkler comprising:
- a body defining an inlet, an outlet and a passageway therebetween;
a first valve being located in the passageway to regulate the flow of water between the inlet and the outlet, the first valve restricting flow depending on an amount that pressure downstream of the first valve exceeds a first predetermined threshold; and
a second valve being embedded at least in part with the first valve and being located downstream of the first valve to bypass flow past the outlet when pressure at the outlet exceeds a second predetermined threshold.
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Accused Products
Abstract
A sprinkler pressure regulator module has a compact arrangement with a shiftable member having an upper cavity for receiving water flow debris, and a portion of a bypass valve may reciprocate therein. The module includes a stator plate directing water into a drive mechanism, such as a turbine drive mechanism. The shiftable member receives fluid flow from a radially outboard direction and is sealed with a cup portion receiving the shiftable member to define a cup cavity. A module exterior surface is separated from a sprinkler housing to define a vent cavity. A pressure release vent communicates with the cup cavity, a vent channel between the cup portion and the exterior surface, the vent cavity, and the exterior environment. The vent cavity and cup portion provide receptacles for debris deposit. Ribs around an opening of the vent channel with the vent cavity generally prevent debris from entering the vent channel.
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Citations
38 Claims
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1. An apparatus to regulate the flow of water through a sprinkler comprising:
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a body defining an inlet, an outlet and a passageway therebetween;
a first valve being located in the passageway to regulate the flow of water between the inlet and the outlet, the first valve restricting flow depending on an amount that pressure downstream of the first valve exceeds a first predetermined threshold; and
a second valve being embedded at least in part with the first valve and being located downstream of the first valve to bypass flow past the outlet when pressure at the outlet exceeds a second predetermined threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for regulating water having a variable flow rate or pressure, the apparatus comprising:
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a pressure responsive member including surface portions in contact with water flowing through the apparatus such that the water pressure exerts a force on the surface portions, the pressure responsive member shiftable in response to the water pressure within the apparatus when the water pressure is sufficient to overcome a bias provided by a bias member;
a cup portion defining an interior cavity for receiving a portion of the pressure responsive member and a portion of the bias member;
at least one inlet for receiving water into the apparatus radially outward from the cup portion and from the pressure responsive member a shell having a radially interior surface and a radially exterior surface, the cup being positioned radially inward a distance away from the shell interior surface, and the at least one inlet includes a plurality of radially positioned inlets between the cup and the shell interior surface, wherein the shell exterior surface is positioned against and within an interior surface of a moveable housing of a pop-up sprinkler. - View Dependent Claims (22)
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23. A sprinkler for distributing water comprising:
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an interior surface; and
a pressure regulating apparatus including;
a body defining an inlet for receiving water into the apparatus, an outlet for delivering water from the apparatus, and a passageway between the inlet and outlet, the body further having an exterior surface, a pressure responsive member at least a first surface portion of which is in contact with water received in the passageway such that the water pressure exerts a force on the first surface portion, and at least a second surface portion of the pressure responsive member being in communication with a first cavity at a generally constant reference pressure, the pressure responsive member being shiftable in response to pressure of the water, and the first cavity being generally sealed from the passageway to prevent the flow of water and air therebetween, and a valve seat in communication with the passageway, wherein the pressure responsive member moves towards the valve seat when pressure against the pressure responsive member exceeds a predetermined level to reduce the flow of water through the passageway, wherein the body exterior surface is positioned a distance from the sprinkler interior surface and generally sealed therewith to define a second cavity in communication with the first cavity and in communication with an exterior environment of a portion of the sprinkler. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. An apparatus to regulate the operation of a sprinkler including a drive mechanism, the apparatus comprising:
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a body defining an inlet for receiving water into the apparatus, an outlet for delivering water from the apparatus, and a passageway between the inlet and outlet;
a valve member at least a portion of which is in contact with water received in the passageway, the valve member being shiftable in response to pressure of the water; and
a valve seat in communication with the passageway, wherein the valve member moves towards the valve seat when pressure against the valve member exceeds a predetermined level to reduce the flow of water through the passageway, the outlet delivers water power to the drive mechanism. - View Dependent Claims (35, 36, 37, 38)
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Specification