초록 ▼

A nozzle assembly for a sprinkler comprising a rigid structure cooperatively receiving a flat resilient flow control washer in a position such that when the water under pressure is communicated with the upstream side of the washer the periphery of the downstream face remains generally in a retained

A nozzle assembly for a sprinkler comprising a rigid structure cooperatively receiving a flat resilient flow control washer in a position such that when the water under pressure is communicated with the upstream side of the washer the periphery of the downstream face remains generally in a retained relative radial position while the remainder is distorted axially in the downstream direction an amount which increases progressively in a direction toward the interior opening of the washer. The washer has an annular stream defining surface at the juncture between its interior opening and its upstream side for engaging the water under pressure communicated with the upstream side of the washer and forming the same into a stream issuing through the opening having a cross-sectional area and velocity which vary inversely with respect to one another depending upon the pressure of the water under pressure communicated with the upstream side of the washer so that the water flow rate within the stream is generally constant within an operative range of pressures. The rigid structure includes an upstream projection portion operable to cause the stream defining surface of the washer when distorted as aforesaid to form at least one annular portion which is disposed axially upstream with respect to another annular portion thereof such that one portion of the stream engaged by the one surface portion has a greater radially outward component of movement as compared with another portion of the stream engaged by the other annular surface portion thus resulting in a greater diffusion of the one stream portion with respect to the other stream portion.

대표청구항 ▼

A nozzle assembly for a sprinkler comprising a resilient annular washer having and upstream side, a downstream side, an exterior periphery extending therebetween and an interior opening extending therebetween, a rigid structure cooperatively receiving said washer, said rigid structure having means f

A nozzle assembly for a sprinkler comprising a resilient annular washer having and upstream side, a downstream side, an exterior periphery extending therebetween and an interior opening extending therebetween, a rigid structure cooperatively receiving said washer, said rigid structure having means for enabling the same to be detachably secured to a sprinkler so as to communicate water under pressure within the sprinkler with the upstream side of said washer, said rigid structure including peripheral surface means generally confining the periphery of said washer so as to determine generally the relative radial position at which said washer is presented for communication with the water under pressure within the sprinkler when said rigid structure is secured thereto, interengaging surface means on the downstream side of said washer and on said rigid structure for enabling said washer to be controllably distorted by the water under pressure communicated with the upstream side thereof such that the periphery of the downstream face remains generally in the aforesaid relative radial position while the remainder is distorted axially in the downstream direction an amount which increases progressively in a direction toward said interior opening, said washer having stream defining surface means at the juncture between said interior opening and said upstream side for engaging the water under pressure communicated with the upstream side of the washer and forming the same into a stream issuing through said opening having a cross-sectional area and velocity which vary inversely with respect to one another depending upon the pressure of the water under pressure communicated with the upstream side of the washer so that the water flow rate within the stream is generally constant within an operative range of pressures, said stream defining surface means when distorted as aforesaid including at least one annular portion which is disposed axially upstream with respect to another annular portion thereof such that one portion of the stream engaged by said one surface means portion has a greater radially outward component of movement as compared with another portion of the stream engaged by said other annular surface means portion thus resulting in a greater diffusion of said one stream portion with respect to said other stream portion.