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US 6,283,199 B1Granted
Heat exchanger
AssigneeToyo Radiator Co., Ltd.
InventorsYouichi Nakamura, Kimiaki Nakano
Life of this patent
Estimating the term…
Abstract
A heat exchanger is provided with a casing (5) in which a heat exchanger core (3) is received. The core (3) is provided with a pair of inlet/outlet convex portions (1) in its opposite end portions. These pipes (1) pass through the casing (5) to project outward. The heat exchanger is capable of sufficiently absorbing any difference in thermal expansion between its components such as the casing (5) and the core (3), which is realized by the provision of a bellows (6) fluid-tightly interposed between at least one of the inlet/outlet convex portions (1) of the core (3) and a corresponding one of a pair of through-hole portions (4) of the casing (5)
Claims3
A heat exchanger comprising:
- a core (3) provided with a pair of inlet/outlet convex portions (1), wherein said inlet/outlet convex portions (1) are longitudinally spaced apart from each other on an outer peripheral surface of said core (3);
- a casing (5) for receiving therein said core (3), wherein said casing (5) is provided with a pair of through-hole portions (4) which are brought into liquid-tight contact with said inlet/outlet convex portions (1) of said core (3), wherein a first fluid (17) and a second fluid (18) are introduced into said core (3) and said casing (5), respectively, to perform heat exchange between said first fluid (17) and said second fluid (18);
- and
- a bellows (6) interposed between at least one of said inlet/outlet convex portions (1) of said core (3) and a corresponding one of said through-hole portions (4) of said casing (5) to realize fluid-tight contact between said bellows and each of said one of said inlet/outlet convex portions (1) of said core (3) and said corresponding one of said through-hole portions (4) of said casing (5), wherein said bellows (6) permits said one of said inlet/outlet convex portions (1) of said core (3) to move relative to said corresponding one of said through-hole portions (4) of said casing (5) in a radial direction of said corresponding one of said through-hole portions (4) of said casing (5),
- wherein:
- a short sleeve portion (7) larger in diameter than said one of said inlet/outlet convex portions (1) of said core (3) is provided in a position corresponding to that of said corresponding one of said through-hole portions (4) of said casing (5);
- said short sleeve portion (7) of said casing (5) has its top opening portion brought into fluid-tight contact with one of opposite ends of said bellows (6), the other one of said opposite ends of said bellows (6) being brought into fluid-tight contact with said one of said inlet/outlet convex portions (1) of said core (3), and
- wherein:
- said short sleeve portion (7) of said casing (5) is provided with an inner flange portion (8) in its root portion;
- and, a holding means (9, 15) for slidably holding said inner flange portion (8) of said casing (5) is provided in the root portion of said one of said inlet/outlet convex portions (1) of said core (3).
7 more elements
A heat exchanger comprising:
- a core (3) provided with a pair of inlet/outlet convex portions (1), wherein said inlet/outlet convex portions (1) are longitudinally spaced apart from each other on an outer peripheral surface of said core (3);
- a casing (5) for receiving therein said core (3), wherein said casing (5) is provided with a pair of through-hole portions (4) which are brought into liquid-tight contact with said inlet/outlet convex portions (1) of said core (3), wherein a first fluid (17) and a second fluid (18) are introduced into said core (3) and said casing (5), respectively, to perform heat exchange between said first fluid (17) and said second fluid (18);
- and
- a bellows (6) interposed between at least one of said inlet/outlet convex portions (1) of said core (3) and a corresponding one of said through-hole portions (4) of said casing (5) to realize fluid-tight contact between said bellows and each of said one of said inlet/outlet convex portions (1) of said core (3) and said corresponding one of said through-hole portions (4) of said casing (5), wherein said bellows (6) permits said one of said inlet/outlet convex portions (1) of said core (3) to move relative to said corresponding one of said through-hole portions (4) of said casing (5) in a radial direction of said corresponding one of said through-hole portions (4) of said casing (5),
- wherein:
- a short sleeve portion (7) larger in diameter than said one of said inlet/outlet convex portions (1) of said core (3) is provided in a position corresponding to that of said corresponding one of said through-hole portions (4) of said casing (5);
- said short sleeve portion (7) of said casing (5) has its top opening portion brought into fluid-tight contact with one of opposite ends of said bellows (6), the other one of said opposite ends of said bellows (6) being brought into fluid-tight contact with said one of said inlet/outlet convex portions (1) of said core (3),
- wherein:
- said short sleeve portion (7) of said casing (5) is provided with an inner flange portion (8) in its root portion;
- and, a holding means (9, 15) for slidably holding said inner flange portion (8) of said casing (5) is provided in the root portion of said one of said inlet/outlet convex portions (1) of said core (3), and
- wherein said holding means (9, 15) is constructed of a flange member (9) and an upper end plate (15) of said core (3).
8 more elements
Dependencies are inferred from the claim text.