Heat exchanger tube with optimized plates
AssigneeValeo Climatisation
InventorsPatrick Samy, Sylvain Moreau, Frederic Bousquet
Life of this patent
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Abstract
The invention relates to a tube for a heat exchanger through which a fluid flows, intended to promote heat exchange between an external medium and said fluid, formed by at least two plates 4, 5 connected to each other in order to define a circulation duct, the cross section of which is a cross section for passage of said fluid, said circulation duct having a fluid inlet orifice 13 and a fluid outlet orifice 14, wherein said tube comprises a means 12 for partially blocking the circulation duct intended to keep the passage cross section of said duct substantially constant between the inlet orifice 13 and the outlet orifice 14.
Claims21
A tube (1) for a heat exchanger (2) through which a fluid (3) flows, intended to promote heat exchange between an external medium (7) and said fluid, formed by at least two plates (4, 5) connected to each other in order to define a circulation duct (10), the cross section of which is a cross section (11) for passage of said fluid, said circulation duct having a fluid inlet orifice (13) and a fluid outlet orifice (14), wherein said tube comprises a means (12) for partially blocking the circulation duct (10) intended to keep the passage cross section (11) of said duct substantially constant between the inlet orifice (13) and the outlet orifice (14).
The heat exchanger tube (1) as claimed in any one of the preceding claims, wherein the partial blocking means (12) is defined by the staggered positioning of flow disturbers (15, 15a, 16, 16a) each with respect to the others such that their cumulated blocking cross sections are substantially constant over the entire length of the circulation duct (10).
The heat exchanger tube (1) as claimed in any one of the preceding claims, wherein the passage cross section (11) is constant when the difference between a minimum passage cross section and a maximum passage cross section determined in the circulation duct (10) does not exceed 20 percent.
The heat exchanger tube (1) as claimed in any one of the preceding claims, wherein the partial blocking means (12) is defined by the shape of flow disturbers (15, 15a, 16, 16a) each with respect to the others in the circulation duct.
A heat exchanger which comprises at least one tube (1) defined as claimed in any one of the preceding claims.
Dependencies are inferred from the claim text.