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US 5,704,420 AGranted
Finned tube heat exchanger
AssigneeDaewoo Electronics Co., Ltd.
InventorJong-Woon Kim
Life of this patent
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Abstract
A finned tube heat exchanger is disclosed in which the structure thereof is simple, and the heat exchanging performance is increased. The heat exchanger has a plurality of fin plates arranged in parallel with one another, and a plurality of heat exchanger tubes extending through the fin plates. Each of the fin plates has a plurality of projected strips, and the strips include first to sixth rows of strips disposed in a parallel relationship. Each of the first and sixth rows of strips is formed of a trapezoidal strip and two parallelogrammic strips, each of the second and fifth rows of strips is formed of a trapezoidal strip, and each of the third and fourth rows of strips is formed of a rectangular strip.
Claims6
A heat exchanger comprising:
- a plurality of fin plates spaced at regular intervals, arranged in parallel with one another and adapted to allow air to flow therebetween, each fin plate having openings arranged in a longitudinal direction thereof and a leading edge arranged perpendicularly to the air flow;
- and
- a plurality of heat exchanger tubes extending through said openings of said fin plates in a direction perpendicular to planes in which said fin plates lie and being adapted to allow a refrigerant fluid to pass therein,
- each of said fin plates having a plurality of strips projected from a surface of said fin plates and extending perpendicularly to a direction in which air is to flow between said fin plates,
- said strips comprising first to sixth rows of strips arranged between said openings, which are disposed adjacent to one another, along the longitudinal direction of said fin plates in a parallel relationship,
- said first row of strips being located near the leading edge of said fin plates and consisting of a trapezoidal strip having a long side located on an upper stream of the air flow and two parallelogrammic strips located on two opposing sides of said trapezoidal strip in the longitudinal direction, said second row of strips consisting of a trapezoidal strip having a long side located on the upper stream of the air flow, each of said third and fourth rows of strips consisting of a rectangular strip, said fifth row of strips consisting of a trapezoidal strip having a long side located on a lower stream of the air flow, said sixth row of strips consisting of a trapezoidal strip having a long side located on the lower stream of the air flow and two parallelogrammic strips located on two opposing sides of said trapezoidal strip of said sixth row of strips in the longitudinal direction,
- two opposing sides of each of said first to sixth rows of strips, facing the air flow, being opened by cutting and the other two sides thereof being provided with leg portions for connecting said first to sixth rows of strips with said fin plates.
4 more elements
A heat exchanger comprising:
- a plurality of fin plates spaced at regular intervals, arranged in parallel with one another and adapted to allow air to flow therebetween, each fin plate having openings arranged in a longitudinal direction thereof and a leading edge arranged perpendicularly to the air flow;
- and
- a plurality of heat exchanger tubes extending through said openings of said fin plates in a direction perpendicular to planes in which said fin plates lie and being adapted to allow a refrigerant fluid to pass therein,
- each of said fin plates having a plurality of strips projected from a surface of said fin plates and extending perpendicularly to a direction in which air is to flow between said fin plates,
- said strips comprising first to sixth rows of strips arranged between said openings, which are disposed adjacent to one another, along the longitudinal direction of said fin plates in a parallel relationship,
- said first row of strips being located near the leading edge of said fin plates and consisting of a trapezoidal strip having a long side located on an upper stream of the air flow and two parallelogrammic strips located on two opposing sides of said trapezoidal strip in the longitudinal direction, said second row of strips consisting of a trapezoidal strip having a long side located on the upper stream of the air flow, each of said third and fourth rows of strips consisting of a rectangular strip, said fifth row of strips consisting of a trapezoidal strip having a long side located on a lower stream of the air flow, said sixth row of strips consisting of a trapezoidal strip having a long side located on the lower stream of the air flow and two parallelogrammic strips located on two opposing sides of said trapezoidal strip of said sixth row of strips in the longitudinal direction,
- two opposing sides of the respective said first to sixth rows of strips, facing the air flow, being opened by cutting and the other two sides being provided with leg portions for connecting said first to sixth rows of strips with said fin plates,
- said first to sixth rows of strips have a projecting height of about 1.0 mm and a width of about 0.96 mm, and are formed on one side of said fin plates,
- said first to third rows of strips are disposed in a symmetric relationship with said fourth to sixth rows of strips with respect to a center line of said openings formed in the longitudinal direction.
6 more elements
Dependencies are inferred from the claim text.