JPWO2021202150A5 - - Google Patents

Claims (18)

a housing including a housing inlet, a housing outlet offset from the housing inlet along a fluid flow direction, and a housing channel extending between the housing inlet and the housing outlet;
a rotatable body disposed within the housing channel between the housing inlet and the housing outlet, the rotatable body having an outer surface curved about an axis of rotation;
the rotatable body defines a hole extending entirely through the rotatable body, whereby the hole defines a hole inlet at the outer surface and a hole outlet at the outer surface offset from the hole inlet;
the rotatable body defines at least one bypass hole extending therethrough, angularly offset from the bore, and in fluid communication with the housing inlet and the housing outlet;
a rotatable body;
The fluid flow restrictor of an associated spray pressure control system, wherein the rotatable body is rotatable between 1) a first orientation in which the hole outlet is offset from the hole inlet along the fluid flow direction, 2) a second orientation in which the hole inlet is offset from the hole outlet along the fluid flow direction, and 3) a third orientation in which the at least one bypass hole is positioned in series with the fluid flow from the housing inlet to the housing outlet . The fluid flow restrictor of claim 1, wherein the hole inlet and the hole outlet are offset from one another along a hole axis that is angularly offset from the axis of rotation. The fluid flow restrictor of claim 1, characterized in that the fluid flow restrictor comprises a plug configured to retain the rotatable body within a recess in the housing. The fluid flow restrictor of claim 3, wherein the plug has a first end and a second end offset from the first end along a central axis, the first end of the plug configured to support the rotatable body such that the rotatable body can rotate about the axis of rotation. 2. The fluid flow restrictor of claim 1, wherein the housing comprises : (a) a housing body having a first end and a second end offset from one another along the axis of rotation; and (b) an outer surface extending around the axis of rotation. The outer surface of the housing body forms a seal between the housing and the inner surface of an associated manifold housing of the associated spray pressure control system by defining at least one recess configured to receive a seal. 6. The fluid flow restrictor of claim 5. The at least one recess includes an angled recess in a plane forming a non-perpendicular angle to the axis of rotation, the angled recess having a portion between the housing inlet and the second end of the housing body. and inclined relative to the central axis of the housing channel such that a portion of the recess is located between the housing outlet and the first end of the housing body. 7. The fluid flow restrictor of claim 6, wherein: The fluid flow restrictor of claim 1 , further comprising a handle configured to be rotated to transition the rotatable body between the first orientation and the second orientation. The fluid flow restrictor of claim 1 , wherein the outer surface of the rotatable body has a substantially spherical shape. 2. The fluid flow restrictor of claim 1 , further comprising an inner surface defining an orifice disposed within the hole and having a cross-sectional dimension less than a cross-sectional dimension of the hole, the orifice configured to restrict the flow of the fluid as the fluid flows between the hole inlet and the hole outlet. The fluid flow restrictor of claim 10 , further comprising a holder having the inner surface defining the orifice, the holder configured to be removably supported within the bore of the rotatable body. 2. The fluid flow restrictor of claim 1, wherein the rotatable body is rotatable between the first orientation and the second orientation by rotating the rotatable body approximately 180 degrees about the axis of rotation. The fluid flow restrictor of claim 1 , wherein the at least one bypass hole extends along a central axis that extends along a direction perpendicular to the central axis of the hole. 2. The fluid flow restrictor of claim 1, wherein the rotatable body is rotatable between 1 ) at least one of the first orientation or the second orientation, and 2) the third orientation by rotating the rotatable body approximately 90 degrees about the axis of rotation . A fluid flow restrictor according to claim 1;
a passageway therethrough, and a recess extending into the manifold housing opening into the passageway, the fluid flow restrictor being positioned therein such that the aperture of the fluid flow restrictor is in fluid communication with the passageway. a manifold housing defining a recess configured to support a manifold housing. 10. A method for cleaning a fluid flow restrictor according to claim 1 , comprising the steps of:
rotating the rotatable body within the housing channel about the axis of rotation from the first orientation to the second orientation;
13. The method of claim 12, further comprising the step of flowing a fluid through the fluid flow restrictor such that the fluid flows from the hole outlet to the hole inlet. 17. The method of claim 16, further comprising, prior to the step of rotating the rotatable body , flowing the fluid through the fluid flow restrictor such that the fluid flows into the hole inlet at a first pressure, from the hole inlet to the hole outlet, and out of the hole outlet at a second pressure lower than the first pressure. 17. The method of claim 16 , wherein the rotating the rotatable body includes rotating the rotatable body approximately 180 degrees .