CN101371096A - Heat exchanger provided with a connection element - Google Patents

Heat exchanger provided with a connection element Download PDF

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Publication number
CN101371096A
CN101371096A CNA2007800027708A CN200780002770A CN101371096A CN 101371096 A CN101371096 A CN 101371096A CN A2007800027708 A CNA2007800027708 A CN A2007800027708A CN 200780002770 A CN200780002770 A CN 200780002770A CN 101371096 A CN101371096 A CN 101371096A
Authority
CN
China
Prior art keywords
heat exchanger
connector
fuel
metal end
return loop
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.)
Pending
Application number
CNA2007800027708A
Other languages
Chinese (zh)
Inventor
罗伯托·德菲利皮
佛朗哥·科洛西莫
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.)
Dayco Fuel Management SpA
Original Assignee
Dayco Fuel Management SpA
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 Dayco Fuel Management SpA filed Critical Dayco Fuel Management SpA
Publication of CN101371096A publication Critical patent/CN101371096A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
    • F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/141—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
    • F16L13/143—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside with a sealing element placed around the male part before crimping or rolling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/30—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses comprising parts inside the hoses only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Abstract

A heat exchanger for a return circuit of fuel in a diesel engine adapted to connect the engine to a tank of a motor vehicle, comprising a radiating body (2) for exchanging heat with the fuel and at least one metallic end portion (9) adapted to be crossed by the fuel directed towards the tank, and also comprising a connection element (10) rigidly and f luid-tightly connected to the metallic end portion (9) and adapted to be connected to a conduit of the return circuit by means of a tubular portion (13) having an external diameter smaller than the external diameter of the metallic tubular element (9). The metallic end portion (9) defines a narrowing made by plastic deformation to connect to the connecting element (10) and the connecting element (10) is made by moulding a polymeric material.

Description

Be provided with the heat exchanger of connector
Technical field
The present invention relates to a kind of heat exchanger that in Diesel engine, is used for the return branch of fuel supply circuit.
Background technology
The excessive fuel that return loop will not inject in the combustion chamber is carried back the fuel tank of motor vehicles, and generally includes and be positioned at the fuel tank upstream and be in the heat exchanger of the fuel of high temperature usually with cooling when leaving transmitter.
During use, heat exchanger comprises respectively the entrance and exit that is limited greater than the tubular metal portion of the diameter of employed pipeline in the return loop by diameter, and heat exchanger must be equipped with suitable connector.
Summary of the invention
The objective of the invention is to, a kind of heat exchanger that is used for the fuel return loop of Diesel engine is provided, described heat exchanger can be connected to non-return loop pipeline by simple and cost-effective mode.
Purpose of the present invention realizes by the heat exchanger that claim 1 limited.
Description of drawings
In order to understand the present invention better, will only the present invention be described below by infinite example and in conjunction with following accompanying drawing, wherein:
-Fig. 1 is the front view according to heat exchanger of the present invention;
-Fig. 2 is the cross-sectional view along the II among Fig. 1-the II line is intercepted;
-Fig. 3 is the axial cross-sectional view of the end of the interchanger among Fig. 1; And
-Fig. 4 is respectively the different axial cross-sectional view that change example of the end among Fig. 3 with Fig. 5.
The specific embodiment
In Fig. 1, numeral 1 schematically shows the heat exchanger of the fuel return loop that is used for Diesel engine.Particularly, described return loop is connected to the fuel tank of vehicle (not shown) with fluid-flow mode with engine, and will not inject the fuel conveying oil sump tank of combustion chamber.
Heat exchanger 1 has the radiant body of being made by metal material 2, and radiant body 2 comprises curved conductor 3 and the straight catheter of alternately arranging 4 on the whole, and each conduit all has essentially identical sidewall 5 of thickness and channel part 6.
Curved conductor 3 has rounded substantially channel part 6, and the shape of the channel part 6 of straight catheter 4 presents the recess that the vertical protuberance 7 by sidewall 5 limits, wherein, vertical protuberance 7 of sidewall 5 is towards the axis of each straight catheter 4 depression and be suitable for cooperating with fuel by radiant body 2.On the outer surface of sidewall 5, protuberance limits each groove 8, thereby makes channel part itself form " cloverleaf intersects (cloverleaf) " profile (Fig. 2).
Protuberance 7 both can be straight, also can be spiral.Described protuberance also can be made by the circular section pipe by plastic deformation, for example, is formed by the longitudinal knife ca(u)lk.
Groove 7 has improved the efficient of heat exchanger.In addition, in order to keep the low loss of load, around the diameter D of the circumference of the channel part 6 of heat exchanger 1 (Fig. 2) diameter greater than the pipe of return loop.
Heat exchanger 1 also comprises with the pipe-type outlet part 9 of straight catheter 4 one of least significant end and is used for pipe-type outlet part 9 is connected to the connector 10 of return loop pipeline.The outside of pipe-type outlet part 9 has the external diameter that equals diameter D adaptably with the ca(u)lk process (caulking process) that is used to form groove 7.
Connector 10 (Fig. 3) limited hole 11, described through hole have axis A and by polymeric material and glass filler is molded forms.For example, can use energy high temperature resistant PA12 that is filled with 30% glass filler or PA66.
Connector 10 comprise the cylindrical body 12 that is rigidly attached in the pipe-type outlet part 9 and along axis direction from cylindrical body 12 outstanding and external diameters less than the tubular portion 13 of the external diameter of pipe-type outlet part 9.In use, tubular portion 13 is connected to the pipeline of return loop hermetically according to various connected mode fluids.
Cylindrical body 12 comprises the connecting portion 14 that is contained in the pipe-type outlet part 9 and with respect to the flange 15 of connecting portion 14 radial protrusions.
Connecting portion 14 limits pair of base 17, and the ccontaining separately O type ring 18 of described pedestal, O type ring 18 are radially pressed and put on pipe-type outlet part 9 to limit the fluid sealing.O type ring 18 is made by fluorosilicone and fluorocarbon respectively, with the chemical erosion of opposing diesel fuel and the high thermal excursion characteristic (thermal excursion characteristic) of diesel fuel return loop.
Connecting portion 14 also limits and is arranged between pedestal 17 and the flange 15 and the ring-shaped groove 19 that combines with described flange.Ring-shaped groove 19 has tapered side 19a and side 19b, and wherein tapered side 19a has the profile to flange 15 convergences, and side 19b combines and limits axially in abutting connection with the end 16 with axial lock fixed tube shape exit portion 9 with flange 15.
Assembly process, connector 10 inserts in the pipe-type outlet part 9 and with abutment and is arranged to be resisted against on the 19b of side.
Then, by the cold plastic deformation formation narrow of end 16, narrow adopts tapered profiles also to be connected to side 19a, thereby with fixed form locking connector 10.In addition, limit the diameter stenosis part with the minimizing load loss from connecting portion 14 towards the through hole 11 of tubular portion 13, and limit the zone of constant diameter subsequently.Diameter blocks profile partly can be according to the flow dynamic characteristic and the application random variation of interchanger 1.
Advantage is that said apparatus 1 can obtain following effect.
Connector 10 is connected on the interchanger simply by cold plastic deformation, and has simple and cost-effective structure.
Radiant body 2 and connector 10 constitute interchanger, and described interchanger greatly reduces because number of components is few to be made and built-up time.
In addition, the radiant body 2 that is provided with protuberance 7 is made by the plastic deformation of pipeline section, thereby has high efficiency, and can also reduce processing and built-up time.
At last, under the prerequisite of the protection domain that does not deviate from the claim of enclosing, can carry out modifications and changes to interchanger 1 illustrated and that show.
Tube element 13 can be shaped to be connected to pipeline according to diverse ways.The flange 20 that is carried in the zone line by tube element 13 can be realized the connection of binding fast.Fig. 4 shown connector 10 ', single pedestal 17 wherein is set is used for the O type ring 18 that can make by fluorocarbon or fluorosilicone.In Fig. 4, tube element 13 has circular cylinder shaped portion 21 and circle or Gothic arch part 22.Fig. 5 has shown that tube element limits the connector 10 of the profile of falling the pine tree ".Connector 10 can also be arranged among the tubulose importation 9a with first straight catheter, 4 one.

Claims (6)

1. the heat exchanger of the return loop of a fuel that is used for Diesel engine, wherein said return loop is suitable for described engine is connected to the fuel tank of motor vehicles, described heat exchanger comprises radiant body (2) and at least one metal end (9) that carries out heat exchange with fuel, described metal end is suitable for being crossed by the fuel towards the fuel tank guiding, and described heat exchanger also comprises connector (10), described connector rigidity and fluid are connected to described metal end (9) hermetically, and described connector is suitable for being connected to less than the tubular portion (13) of the external diameter of described tubular metal spare (9) by external diameter the pipeline of described return loop, it is characterized in that, described metal end (9) limits the narrow made by plastic deformation to be connected to described connector (10), and be characterised in that described connector (10) forms by polymeric material is molded.
2. heat exchanger as claimed in claim 1, it is characterized in that, described connector (10) has ring-shaped groove (19), described ring-shaped groove has to first side (19a) of described tubular portion (13) convergence and second side (19b) that is defined for the axial retention portion of the described connector of axial locking (10), and be characterised in that described first narrow is tapered to be connected with described first side (19a).
3. heat exchanger as claimed in claim 2 is characterized in that, described connector (10) comprising:
Cylindrical body (12), described cylindrical body are accommodated in the described metal end (9) and limit at least one circular base (17); And
At least one O type ring (18), described O type ring are contained in the described circular base (17) to limit the fluid sealing.
4. each described heat exchanger in the claim as described above is characterized in that described connector (10) has through hole (11), and described through hole limits the diameter stenosis part to reduce load loss.
5. each described heat exchanger in the claim as described above is characterized in that, described tubular portion (13) presents and is used for the flange-shape profile, Gothic arch profile or the shape of falling the pine tree profile that connect fast.
6. each described heat exchanger in the claim as described above is characterized in that described radiant body (2) has at least one elongated protuberance (7), and described protuberance is made towards axis (A) depression and by plastic deformation.
CNA2007800027708A 2006-01-19 2007-01-19 Heat exchanger provided with a connection element Pending CN101371096A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000037A ITTO20060037A1 (en) 2006-01-19 2006-01-19 HEAT EXCHANGER PROVIDED WITH A CONNECTION ELEMENT
ITTO2006A000037 2006-01-19

Publications (1)

Publication Number Publication Date
CN101371096A true CN101371096A (en) 2009-02-18

Family

ID=36950175

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007800027708A Pending CN101371096A (en) 2006-01-19 2007-01-19 Heat exchanger provided with a connection element

Country Status (4)

Country Link
EP (1) EP1977184A1 (en)
CN (1) CN101371096A (en)
IT (1) ITTO20060037A1 (en)
WO (1) WO2007082921A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101852570A (en) * 2010-05-21 2010-10-06 谭仲禧 Pipeline connection structure of heat exchanger
CN102235836A (en) * 2010-04-22 2011-11-09 克朗斯股份公司 Connection element for tubular heat exchanger
CN103573495A (en) * 2012-08-09 2014-02-12 通用汽车环球科技运作有限责任公司 Fuel rail connector
CN110274507A (en) * 2019-06-18 2019-09-24 衢州佰强新材料科技有限公司 A kind of heat exchanger that thermal stress is completely eliminated

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20080403A1 (en) * 2008-05-27 2009-11-28 Dayco Fluid Technologies Spa FITTING AND ADDUCTION GROUP FOR A AIR CONDITIONING CIRCUIT
IT1391195B1 (en) * 2008-08-06 2011-11-18 Dayco Fluid Technologies Spa ADDUCTION GROUP FOR A AIR CONDITIONING CIRCUIT AND ITS RELATIVE PROCEDURE
US8261445B2 (en) * 2009-11-23 2012-09-11 International Controls And Measurements Corp. Aluminum tube-aluminum fin baseboard radiator
WO2017173445A1 (en) 2016-04-01 2017-10-05 Evapco, Inc. Multi-cavity tubes for air-over evaporative heat exchanger
EP3436758B1 (en) * 2016-04-01 2022-02-23 Evapco, Inc. Multi-cavity tubes for air-over evaporative heat exchanger
US20220307454A1 (en) * 2021-03-26 2022-09-29 Robert Bosch Gmbh Fitting for a Fluid Delivery System

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
AU1307592A (en) * 1991-03-22 1992-09-24 Evan Robert Davies Improvements in or relating to methods of and/or apparatus for forming joints
FR2726884B1 (en) * 1994-11-10 1996-12-20 Hutchinson METHOD AND DEVICE FOR ASSEMBLING A NOISE ATTENUATOR IN A HYDRAULIC HOSE
DE19707827C2 (en) * 1997-02-25 1999-04-01 Geberit Technik Ag Press connection
DE10025707A1 (en) * 2000-05-26 2001-11-29 Degussa Multi-layer, reinforced plastic connection element with antistatic properties
US6419278B1 (en) * 2000-05-31 2002-07-16 Dana Corporation Automotive hose coupling
US20030230894A1 (en) * 2002-06-13 2003-12-18 Cleveland Rafael L. Brazeless connector for fluid transfer assemblies
US7516990B2 (en) * 2003-05-15 2009-04-14 Mueller Industries, Inc. Fluid conduit system and fittings therefor
ITTO20030724A1 (en) * 2003-09-19 2005-03-20 Dayco Fuel Man Spa COOLING DEVICE FOR A RECYCLING FUEL CIRCUIT FROM AN INJECTION SYSTEM TO A TANK OF A MOTOR VEHICLE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102235836A (en) * 2010-04-22 2011-11-09 克朗斯股份公司 Connection element for tubular heat exchanger
CN101852570A (en) * 2010-05-21 2010-10-06 谭仲禧 Pipeline connection structure of heat exchanger
CN103573495A (en) * 2012-08-09 2014-02-12 通用汽车环球科技运作有限责任公司 Fuel rail connector
CN110274507A (en) * 2019-06-18 2019-09-24 衢州佰强新材料科技有限公司 A kind of heat exchanger that thermal stress is completely eliminated

Also Published As

Publication number Publication date
WO2007082921A1 (en) 2007-07-26
ITTO20060037A1 (en) 2007-07-20
EP1977184A1 (en) 2008-10-08

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20090218