Color change valve device
AssigneeABB AB
InventorKuniharu Yamauchi
Life of this patent
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Abstract
A color change valve device includes: a manifold including on an inside a paint passage, and to which connector passages are provided to radially penetrate therethrough at plural locations axially spaced from each other; a wash air valve and a wash liquid valve connected to the connector passages at a most upstream side among the respective connector passages in the manifold; paint valves connected to the connector passages in the manifold to be positioned at a downstream side of the respective valves; and a swirl flow forming member provided in the paint passage in the manifold for forming a swirl flow by the wash air and the wash liquid, wherein the swirl flow forming member is arranged across an entire length of the paint passage.
Claims6
A color change valve device comprising:
- a manifold including an internal paint passage to which connector passages are provided to radially penetrate therethrough at plural locations axially spaced from each other;
- a wash fluid valve provided to be connected to a most upstream one among said respective connector passages in said manifold for performing supply and blockade of a wash fluid to said paint passage;
- and
- plural paint valves provided to be connected to said connector passages in said manifold at a downstream side of said wash fluid valve for performing supply and blockade of paints to said paint passage;
- a swirl flow forming member provided in said paint passage in said manifold for forming a swirl flow by the wash fluid in said paint passage,
- wherein said swirl flow forming member is arranged across an entire length of said paint passage, and
- wherein said swirl flow forming member is formed as a single member arranged in a state of being freely movable in said paint passage, and includes a plurality of successive unit spirals, each unit spiral comprising a front surface and a back surface reversed by 180-degree twist thereof.
Dependencies are inferred from the claim text.