Compensation device for setting flow rate of infusion solution, device for automatically controlling flow rate of infusion solution, and method for controlling optimal target flow rate using flow rate coefficient of flow rate controller

Patent metadata

Field	Value
Publication number	US-2016305720-A1
Application number	US-201615132224-A
Country	US
Kind code	A1
Filing date	Apr 18, 2016
Priority date	Apr 16, 2015
Publication date	Oct 20, 2016
Grant date	—

Abstract

Disclosed herein are a wavy fin, a heat exchanger having the same, an apparatus for manufacturing the same, a method of manufacturing the same, and a computer-readable recording medium storing the method. The wavy fin is configured such that top and bottom parts are alternately formed in a width direction while being connected by side parts, and the top, bottom, and side parts extend in a longitudinal direction so as to form a wave such that ridges and valleys are alternately repeated, and includes a front part in front of each ridge or valley of the wave in the longitudinal direction, and a rear part beyond the ridge or valley of the wave in the longitudinal direction. The front and rear parts are offset from each other in the width direction so as to be misaligned at the ridge or valley of the wave.

First claim

1 . A wavy fin, in which a plurality of top and bottom parts forming ridges and valleys are alternately formed in a width direction while being connected by a plurality of side parts, and the top parts, the bottom parts, and the side parts extend in a longitudinal direction so as to form a wave such that ridges and valleys are alternately repeated, the wavy fin comprising:
a front part as a region in front of each ridge or valley of the wave in the longitudinal direction; and a rear part as a region beyond the ridge or valley of the wave in the longitudinal direction, wherein the front and rear parts are offset from each other in the width direction so as to be misaligned at the ridge or valley of the wave.

2 . The wavy fin according to claim 1 , wherein the front part or the rear part comprises a reduction part formed rearward from the ridge or valley of the wave by a predetermined length parallel to the longitudinal direction.

3 . The wavy fin according to claim 1 , wherein the front part or the rear part comprises a reduction part formed forward from the ridge or valley of the wave by a predetermined length parallel to the longitudinal direction.

4 . The wavy fin according to claim 1 , wherein one of the front and rear parts is offset from the other within a width between adjacent side parts.

5 . The wavy fin according to claim 1 , wherein one of the front and rear parts is offset from the other by ½ of a width between adjacent side parts.

6 . The wavy fin according to claim 1 , wherein one of the front and rear parts is offset from the other by ⅓ of a width between adjacent side parts.

7 . The wavy fin according to claim 1 , wherein the wave shape is one of a herringbone shape and a sinusoidal shape.

8 . (canceled)

9 . A modeling apparatus for manufacture of a wavy fin, comprising:
an input unit to receive input from a user, and a control unit allowing a wavy fin to be formed as a wavy fin model as a three-dimensional image in response to the input, the wavy fin being configured such that a plurality of top and bottom parts forming respective ridges and valleys are alternately formed in a width direction while being connected by side parts, the top parts, the bottom parts, and the side parts extending in a longitudinal direction so as to form a wave such that ridges and valleys are alternately repeated, the wavy fin comprising a front part as a region in front of each ridge or valley of the wave in the longitudinal direction, and a rear part as a region beyond the ridge or valley of the wave in the longitudinal direction, the front and rear parts being offset from each other in the width direction so as to be misaligned at the ridge or valley of the wave.

10 . The modeling apparatus according to claim 9 , wherein the control unit allows the wavy fin model to be formed such that the front part or the rear part comprises a reduction part formed rearward from the ridge or valley of the wave by a predetermined length parallel to the longitudinal direction.

11 . The modeling apparatus according to claim 9 , wherein the control unit allows the wavy fin model to be formed such that the front part or the rear part comprises a reduction part formed forward from the ridge or valley of the wave by a predetermined length parallel to the longitudinal direction.

12 . The modeling apparatus according to claim 9 , wherein the control unit determines the degree of offset using the following Equation:

W



1

x

,

where W 1 is a width between a pair of side parts of a unit fin, and x is a positive integer.

13 .- 17 . (canceled)

18 . A method of manufacturing a wavy fin using an additive manufacturing apparatus, comprising:
providing a wavy fin model in which a wavy fin is formed as a three-dimensional image, the wavy fin being configured such that a plurality of top and bottom parts forming respective ridges and valleys are alternately formed in a width direction while being connected by side parts, the top pans, the bottom parts, and the side parts extending in a longitudinal direction so as to form a wave such that ridges and valleys are alternately repeated, the wavy fin comprising a front part as a region in front of each ridge or valley of the wave in the longitudinal direction, and a rear part as a region beyond the ridge or valley of the wave in the longitudinal direction, the front and rear parts being offset from each other in the width direction so as to be misaligned at the ridge or valley of the wave; and forming the wavy fin equal to the wavy fin model in an additive manufacturing manner.

19 .- 20 . (canceled)

Assignees

• Univ Seoul Ind Coop Found

Inventors

• Rhee Gwang Hoon
• Kim Gun Woo

Classifications

• F28F3/027 Primary

  with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips · CPC title

• F28F2215/10

  Secondary fins, e.g. projections or recesses on main fins · CPC title

• F28F2200/00

  Prediction; Simulation; Testing · CPC title

• F28F3/025

  the means being corrugated, plate-like elements · CPC title

• F28F1/126 Primary

  consisting of zig-zag shaped fins (F28F1/105 takes precedence) · CPC title