US2070539A - Fin tube - Google Patents

Fin tube Download PDF

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Publication number
US2070539A
US2070539A US55229A US5522935A US2070539A US 2070539 A US2070539 A US 2070539A US 55229 A US55229 A US 55229A US 5522935 A US5522935 A US 5522935A US 2070539 A US2070539 A US 2070539A
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United States
Prior art keywords
tube
fin tube
walls
spiral
channel
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US55229A
Inventor
Muhleisen Carl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schutte and Koerting Co
Original Assignee
Schutte and Koerting Co
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Publication date
Application filed by Schutte and Koerting Co filed Critical Schutte and Koerting Co
Priority to US55229A priority Critical patent/US2070539A/en
Application granted granted Critical
Publication of US2070539A publication Critical patent/US2070539A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals

Description

Feb. 9, 1937. c. MUHLEISEN FIN TUBE Filed Dec. 19, 1935 m m V w ,m Z W0 Patented Feb. 9, 1937 PATENT OFFICE- FIN TUBE Carl Muhleisen, Philadelphia, Pa., assignor to Schutte & Koerting Company, Philadelphia, Pa., a corporation of Pennsylvania Application December 19, 1935, Serial No. 55,229
1 Claim.
The principal objects of the present invention are to provide a good bond between the fins and the tubes; to provide a construction which can be rapidly made and assembled to increase the exterior radiating surface, and to insure improved contact of the fluid withthe surface of the device.
Other objects of the invention will appear from the following description at the end of which the invention will be claimed.-
The invention comprises the improvements to be presently described and finally claimed.
In the following description reference will be made to the accompanying drawing forming part hereof and in which,
Figure 1 is an elevational view'of a portion of a fin tube with parts broken away showing features of the invention.
Figure 2 is a transverse sectional view of the same; and
Figure 3 is a view similar to Figure 1 illustrating a modification.
Referring to the drawing, I indicates a tube. There is a strip of sheet metal of channel section and it includes two side walls 2 and 3 and a bottom wall 4 and it is of spiral form. The two side walls are spaced apart throughout adjacent turns of the spiral. 'In this case reference is made to the side walls which are not connected by a bottom wall. The bottom wall conforms to the surface of the tube and it is provided with a groove 5 extending parallel to the side walls and being adjacent to the surface of the tube. The whole structure is tinned for the purpose of uniting or bonding the parts.
It is evident that two fins connected by the bottom wall are applied to the tubes at a single winding operation and since the spirals are spaced the pitch is steep. The first of the two facts referred to results in rapid production and therefore in economy, and the second fact means that contact with the fluid is improved because air blowing past the tube is deflected and stirred I bond at comparatively little up by reason of the comparatively steep inclination of the fins in respect to its direction of travel. The bottom wall in connection with the tin which enters between it and the tube provides a good expense. The groove 5 improves this bond. The bottom wall of the channel section increases the diameter and therefore the surface of the tube to the extent of the thickness of the strip and in the case of long tubes there is.in that way some increase in the area of the surface which is an advantage in the transfer of heat or cold.
The construction and mode of operation of the modificaton shown in Figure 3 are as above described except that the channel section is not of spiral form but is in the form of individual rings which are strung on the tube I in spaced relation, and the spaced relation may be maintained by the snugness of the fit between the outside surface of the tube and the inside and the confronting surfaces of the bottom wall of the rings until the structure has been tinned or otherwise similarly treated with a metal coating. In Figure 3 the parts are designated by the same numbers plus the exponent 1.
It will be obvious to those skilled in the art to which the invention relates that modifications may be made in details of construction and arrangement and in matters of mere form without departing from the spirit of the invention which its not limited in respect to such matters or otherwise than as the prior'art and the appended claim may require, I
I claim:
A fin tube comprising in combination, a tube, a channel section having two side walls and a bottom wall and of spiral form, the two side walls of the adjacent turns of the spiral being spaced apart and the bottom wall conforming to the surface of the tube and provided with a groove, the whole being metal coated to unite the parts.
CARL MUHLEISEN.
US55229A 1935-12-19 1935-12-19 Fin tube Expired - Lifetime US2070539A (en)

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Application Number Priority Date Filing Date Title
US55229A US2070539A (en) 1935-12-19 1935-12-19 Fin tube

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US55229A US2070539A (en) 1935-12-19 1935-12-19 Fin tube

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417629A (en) * 1942-08-20 1947-03-18 Wilhelm B Bronander Cooling fin structure
US2426920A (en) * 1942-08-20 1947-09-02 Wilhelm B Bronander Method of forming and applying cooling fins to tubular members
US2598191A (en) * 1948-10-22 1952-05-27 Gen Motors Corp Method of making fin elements
US2773678A (en) * 1951-12-26 1956-12-11 American Blower Corp Air conditioning apparatus
US2965744A (en) * 1957-11-04 1960-12-20 Busse Ferdinand Method of and apparatus for producing a finned tube
US3004328A (en) * 1956-02-29 1961-10-17 Foster Wheeler Corp Fin and tube assembly and method of bonding same
US4224984A (en) * 1974-03-20 1980-09-30 Sharp Kabushiki Kaisha Finned tube useful for heat exchangers
US4697321A (en) * 1985-07-31 1987-10-06 Kamui Company Ltd. Method of manufacturing baffles for shell and tube type heat exchangers
US5241838A (en) * 1991-12-26 1993-09-07 General Electric Company Refrigerator with spine fin evaporator
US5241840A (en) * 1991-12-26 1993-09-07 General Electric Company Refrigerator with spine fin evaporator
US5255535A (en) * 1991-12-26 1993-10-26 General Electric Company Refrigerator with spine fin evaporator
EP0687880A1 (en) * 1994-06-15 1995-12-20 Wieland-Werke Ag Tube with a plurality of spiral ribs and method of manufacturing the same
WO2001081022A1 (en) * 2000-04-22 2001-11-01 Bruendermann Georg Gilled pipe
US20080023180A1 (en) * 2006-07-26 2008-01-31 General Electric Company Air cooled heat exchanger with enhanced heat transfer coefficient fins

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426920A (en) * 1942-08-20 1947-09-02 Wilhelm B Bronander Method of forming and applying cooling fins to tubular members
US2417629A (en) * 1942-08-20 1947-03-18 Wilhelm B Bronander Cooling fin structure
US2598191A (en) * 1948-10-22 1952-05-27 Gen Motors Corp Method of making fin elements
US2773678A (en) * 1951-12-26 1956-12-11 American Blower Corp Air conditioning apparatus
US3004328A (en) * 1956-02-29 1961-10-17 Foster Wheeler Corp Fin and tube assembly and method of bonding same
US2965744A (en) * 1957-11-04 1960-12-20 Busse Ferdinand Method of and apparatus for producing a finned tube
US4224984A (en) * 1974-03-20 1980-09-30 Sharp Kabushiki Kaisha Finned tube useful for heat exchangers
US4697321A (en) * 1985-07-31 1987-10-06 Kamui Company Ltd. Method of manufacturing baffles for shell and tube type heat exchangers
US5255535A (en) * 1991-12-26 1993-10-26 General Electric Company Refrigerator with spine fin evaporator
US5241840A (en) * 1991-12-26 1993-09-07 General Electric Company Refrigerator with spine fin evaporator
US5241838A (en) * 1991-12-26 1993-09-07 General Electric Company Refrigerator with spine fin evaporator
EP0687880A1 (en) * 1994-06-15 1995-12-20 Wieland-Werke Ag Tube with a plurality of spiral ribs and method of manufacturing the same
WO2001081022A1 (en) * 2000-04-22 2001-11-01 Bruendermann Georg Gilled pipe
US6843273B2 (en) 2000-04-22 2005-01-18 Georg Brundermann Gilled pipe
KR100721744B1 (en) 2000-04-22 2007-05-25 게오르크 브륀더만 Gilled metal pipe and a method for producing the gilled metal pipe
US20080023180A1 (en) * 2006-07-26 2008-01-31 General Electric Company Air cooled heat exchanger with enhanced heat transfer coefficient fins
US7743821B2 (en) * 2006-07-26 2010-06-29 General Electric Company Air cooled heat exchanger with enhanced heat transfer coefficient fins

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