US1549489A - Oil cooler - Google Patents

Oil cooler Download PDF

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Publication number
US1549489A
US1549489A US259797A US25979718A US1549489A US 1549489 A US1549489 A US 1549489A US 259797 A US259797 A US 259797A US 25979718 A US25979718 A US 25979718A US 1549489 A US1549489 A US 1549489A
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US
United States
Prior art keywords
tube
tubes
oil
shell
cooling
Prior art date
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
Application number
US259797A
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English (en)
Inventor
Russell C Jones
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.)
Griscom Russell Co
Original Assignee
Griscom Russell Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Griscom Russell Co filed Critical Griscom Russell Co
Priority to US259797A priority Critical patent/US1549489A/en
Application granted granted Critical
Publication of US1549489A publication Critical patent/US1549489A/en
Priority to FR618817D priority patent/FR618817A/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/06—Tubular elements of cross-section which is non-circular crimped or corrugated in cross-section
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S122/00—Liquid heaters and vaporizers
    • Y10S122/03—Gas flow baffles

Definitions

  • This invention relates to cooling apparatus and has for its object to provide an apparatus for facilitatinglthe exchange of heat from one fluid in circulation to another, the invention being particularly applicable to the cooling of lubricating oil in circulation through engines or other machinery and for the cooling of quenching oil used in heat treating processes.
  • Fig. l is a longitudinal vertical section of one type of my improved cooler
  • Fig. 2 is a transverse section on line 2 2 of Fig. l;
  • Fig. 8 is a'view similar to Fig. 1 but showing a modified type of cooler
  • Fig. 4 is a transverse sectional view on line if-4' ofFig. 3;
  • FIG. 5 is a longitudinal sectional view of f Y one type of of Fig. 6;
  • Figs. 9-13 inclusive are.A views similan to Fig. 8 but showing different designs of tubes.
  • l indicates the shell of thevcooler
  • a f Fig. 8 is a transverse section on line 8-8 header or tube plate 4 in which are supported one end of each of the tubes 5 through which the oil is to be circulated.
  • the tubes are preferably. expanded in the tube plate after the usual manner of boiler tubes, and the tube plate is supported against the end of the shell 1 by means of a feed drum 6 through which the oil enters and leaves the cooler.
  • Tubes may be sweated in, brazed, or held by ferrules as in condensers, etc.
  • the bolts 10 pass through the flanges of the shell and feed drum and the interposed margin of the tube plate on each side of which is a suitable packing ring, whereby the single series of bolts forms a fluid-tight closure for both feed compartments and also for the shell interior.
  • an outside cover or closure 13 having a fluid-tight joint with the shell and an inside floating tube plate 14 in which the opposite ends of the tubes 5 are set.
  • the floating tube plate is provided with a cover l5 forming a floating oil compartment common to all the tubes whereby lthe oil entering the feed compartment 7 will pass through the tubes forming the upper half of the-set, thence through the drum 15 and return to the outlet opening 12 through the tubes forming the lower half of the set.
  • Th circulated liquid is also caused to pass from end to end of the shell by means of a longitudinal baffle plate 1G supported in the Y shell along its middle diameter and separating the shell into two compartments at the end adjacent the inlet and outlet ports 2 and 3 for the circulating water, the barier being terminated at its other end short of the face ⁇ of the tube plate to provide for the passage of thewater.
  • This tube comprises cylindrical ends toy be expanded in the tube plates and an intermediate part of cruciform cross section, having a perimeter of substantially no greater length than the circumference of the cylindrical part of the tube, whereby the overall diameter of the cruciform portion will be less than the cylindrical part, permitting the tube to be inserted through the hole in the tube plate from one end, in the same manner as an ordinary tube of uni# form cross section throughout.
  • My improved ltube is preferably made from ordinary tubing by die-shaping with suitable roller dies, the method of procedure being to open the rollers and insert the tube between the rollers far enough to provide a cylindrical part of the desired length and gradually bring the rollers together, at the same time advancing the tube longitudinally so that the walls of the tube will be gradually tapered in asl indicated at 17.' After the tube has been advanced through the rollers almost its entire length, the rollers will be gradually separated before the tube is entirely withdrawn so as to provide a duplicate cylindrical portion at the other end of the tube.
  • the action of the roller dies may slightly draw the metal of the tube in shaping it, but the depressions will be ldeep enough to take up suiicient metal for the overall diameter of the tube to be less than that of the cylindrical portions.
  • the tubes may also be'shaped by die rollers having their axes parallel with the axis of the tube or by means of a die press, as will be readily understood.
  • the purpose of shaping the tube in the manner shown is to reduce the cross sectional area of the tube, thereby increasing the velocity of the oil in passingthrough the tube, so that the -moving oil column scours the surface of the tube, removing any oil tending to congeal and adhere thereto, and also to so shape the tube that the oil stream will be thin 7 in all parts, that is, at all points in the oil stream there will be two opposite faces of the tube but slightly spaced apart, preventing the formation of a relatively hot core of oil far removed from the cooling surface.
  • the tube shown in Figs. 6, 7 and 8 is also advantageous ⁇ in that it presents a structure which is mechanically rigid, so that long tubes may be employed without sagging in the middle. Also, as the overall diameterI is less than the diameter of the cylindrical ends, a defective tube maybe withdrawn and a new one replaced without :taking down the apparatus, other than removing the heads to get access to the tube plates, whereas with other sh es of tubes, such as a simple flattened tube 1n which the middle portion has its greatest dimension larger than the diameter of its end, the tube must be inserted in each header or tube plate from the inside. y
  • the design of the cooler may be variously modified without departing from the spirit of the invention, as may also the shape of the tube.
  • Fig. 3 l have shown a further slight modification in the shell design in which, instead of a single return, as in Fig. l, for the cooling water, a double return is provided by means of two baflie plates 20, one
  • . lin Fig. 5 ll have shown a preferred modilication of the oil cooler.
  • the tubes at the return end are set in a drum 2l having a Hoating lit ina packed joint, or stuffing box, 23, formed in the end of the shell, the arrangement being such that there is no joint directly between the oil and the water through which the water can get into the oil and contaminate it. Any leakage o'f the water past the stuffing box joint will merely drip ⁇ from the apparatus, and as the joint between'the return drum and its cover is beyond the stuffing box, the water cannot be forced into the drum should the packing be defective, although the oil may drip out of it.
  • My improved tube may also be variously modified without departing fromthe spirit ⁇ of my invention, the essential features of .which are tubes shaped to .provide an intermediate portion of less over-all diameter than the hole in which it is to be expanded, and operating as a flat tube as regards the skin friction of the contained fluid, the vel locity of the flow and the cooling effect.
  • Fig. l1 shows a cruciform shape generally similar to ⁇ ,Fig. 8, but with the sides of the ribs or corrugations flat instead of curved, as in Fig. 8.
  • This tube presents somewhat more surface for its cross section than Fig. 8.
  • Figs. 9 and 10 show a further form of tube shapes differing from each other in the same way that the tubes of Figs. 8 and 11.
  • the tube is shaped ⁇ into three longitudinal ribs or corrugations ,instead of four, and Fig. 9 shows the ribs of curved outline, whereas those of Fig. l() are straight.
  • Figs. l2 and 13 show two other modifications of the tubes differing one from the other in the same manner. This is a comparatively simple form of tube, but nevertheless effective. In this formv of tube the cylindrical wall of the original tube is retained throughout approximately half the perimeter and the other half ⁇ perimeter is depressed to form a concave exterior, as more clearly shown in the drawing.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US259797A 1918-10-26 1918-10-26 Oil cooler Expired - Lifetime US1549489A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US259797A US1549489A (en) 1918-10-26 1918-10-26 Oil cooler
FR618817D FR618817A (fr) 1918-10-26 1926-06-29 Procédé pour chauffer ou refroidir les liquides visqueux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US259797A US1549489A (en) 1918-10-26 1918-10-26 Oil cooler

Publications (1)

Publication Number Publication Date
US1549489A true US1549489A (en) 1925-08-11

Family

ID=22986431

Family Applications (1)

Application Number Title Priority Date Filing Date
US259797A Expired - Lifetime US1549489A (en) 1918-10-26 1918-10-26 Oil cooler

Country Status (2)

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US (1) US1549489A (fr)
FR (1) FR618817A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608389A (en) * 1948-05-24 1952-08-26 Carter Carburetor Corp Air heater for automatic choke carburetors
FR2175519A1 (fr) * 1970-05-18 1973-10-26 Noranda Metal Ind
FR2445501A1 (fr) * 1978-12-28 1980-07-25 Nikko Eng
US20040079522A1 (en) * 1995-11-13 2004-04-29 Roger Paulman Folded, bent and re-expanded heat exchanger tube and assemblies
US20170023276A1 (en) * 2015-07-23 2017-01-26 Hoval Aktiengesellschaft Heat exchanger tube and heating boiler having such a heat exchanger tube
US11156382B2 (en) * 2018-11-16 2021-10-26 Pvi Industries, Llc C-shaped heat exchanger tube and nested bundle of C-shaped heat exchanger tubes
CZ309510B6 (cs) * 2022-04-25 2023-03-08 České vysoké učení technické v Praze Výměník tepla

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2428209A1 (fr) * 1978-06-05 1980-01-04 Gravier Maurice Dispositif perfectionne de production d'eau chaude ou d'air chaud

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2608389A (en) * 1948-05-24 1952-08-26 Carter Carburetor Corp Air heater for automatic choke carburetors
FR2175519A1 (fr) * 1970-05-18 1973-10-26 Noranda Metal Ind
FR2445501A1 (fr) * 1978-12-28 1980-07-25 Nikko Eng
US20040079522A1 (en) * 1995-11-13 2004-04-29 Roger Paulman Folded, bent and re-expanded heat exchanger tube and assemblies
US20170023276A1 (en) * 2015-07-23 2017-01-26 Hoval Aktiengesellschaft Heat exchanger tube and heating boiler having such a heat exchanger tube
US9739503B2 (en) * 2015-07-23 2017-08-22 Hoval Aktiengesellschaft Heat exchanger tube and heating boiler having such a heat exchanger tube
EP3040638B1 (fr) * 2015-07-23 2018-05-09 Hoval Aktiengesellschaft Tuyau de transfert de chaleur et chaudiere dotee d'un tel tuyau de transfert de chaleur
US11156382B2 (en) * 2018-11-16 2021-10-26 Pvi Industries, Llc C-shaped heat exchanger tube and nested bundle of C-shaped heat exchanger tubes
CZ309510B6 (cs) * 2022-04-25 2023-03-08 České vysoké učení technické v Praze Výměník tepla

Also Published As

Publication number Publication date
FR618817A (fr) 1927-03-22

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