Heat exchanger
Abstract
A heat exchanger has plural tubes, an inlet tank, a fin, and an outlet tank. Each tube has a dimple structure for inducing a turbulent flow of heat exchange fluid flowing through each tube, thereby increasing heat exchange performance. The dimples of each tube satisfy the following formula: 8.80 < the sum A dimple of the product of a width d and a depth h of each dimple a length L of the tube × a height H of the tube × 100 < 13.60
Claims
exact text as granted — not AI-modified1 . A heat exchanger, comprising:
a plurality of tubes 20 arranged in parallel at regular distances so they in the same direction as a ventilation direction through which a heat exchange medium is adapted to flow; an inlet tank in which the heat exchange medium is adapted to be introduced and then distributed to the plurality of tubes; a fin interposed between the tubes so as to increase contact surface with air passing between the tubes; and an outlet tank in which the heat exchange medium flowing through the tubes is adapted to be collected and then discharged, each of the tubes including a dimple protruding from an inside surface of the tube, and when the total sectional area A dimiple of the dimples of each tube is expressed as the sum of the product of the width d and depth h of each dimple and the cross sectional area of each tube is expressed as the product of a length L and height H of each tube, the following formula is satisfied:
8.80
<
the
sum
A
dimple
of
the
product
of
a
width
d
and
a
depth
h
of
each
dimple
a
length
L
of
the
tube
×
a
height
H
of
the
tube
×
100
<
13.60
2 . The heat exchanger according to claim 1 , wherein the depth h of each dimple and the height H of each tube satisfy the following formula:
0.25
<
a
depth
h
of
the
dimple
a
height
H
of
the
tube
<
0.4
3 . The heat exchanger according to claim 2 , wherein a plurality of the dimples are arranged in a transverse direction to form rows on upper and lower surfaces of each tube, the upper dimple row and the lower dimple row of each tube 20 being alternately arranged along the length of each tube.
4 . The heat exchanger according to claim 3 , wherein the dimples of the upper dimple row and lower dimple row are also arranged alternately along the width of the tube so that the dimples of the upper dimple row and lower dimple row are not aligned with each other, and one of the dimples of the lower dimple row being disposed between two adjacent dimples of the upper dimple row, and one of the dimples of the upper dimple row being also disposed between two adjacent dimples of the lower dimple row.
5 . The heat exchanger according to claim 3 , wherein the number of dimples of the upper dimple row of each tube is the same as the number of dimples of the lower dimple row of each tube.
6 . The heat exchanger according to claim 1 , wherein a plurality of the dimples are arranged in a transverse direction to form rows on upper and lower surfaces of each tube, and the upper dimple row and the lower dimple row of each tube being alternately arranged along the length of each tube.
7 . The heat exchanger according to claim 6 , wherein the dimples of the upper dimple row and lower dimple row are also arranged alternately along the width of the tube so that the dimples of the upper dimple row and lower dimple row are not aligned with each other, and one of the dimples of the lower dimple row being disposed between two adjacent dimples of the upper dimple row, and one of the dimples of the upper dimple row being also disposed between two adjacent dimples of the lower dimple row.
8 . The heat exchanger according to claim 7 , wherein the number of dimples of the upper dimple row of each tube is the same as the number of dimples of the lower dimple row of each tube.Join the waitlist — get patent alerts
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