WO2005047799A1 - Heat exchanger, particularly exhaust heat exchanger - Google Patents
Heat exchanger, particularly exhaust heat exchanger Download PDFInfo
- Publication number
- WO2005047799A1 WO2005047799A1 PCT/EP2004/012206 EP2004012206W WO2005047799A1 WO 2005047799 A1 WO2005047799 A1 WO 2005047799A1 EP 2004012206 W EP2004012206 W EP 2004012206W WO 2005047799 A1 WO2005047799 A1 WO 2005047799A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- housing
- heat exchanger
- channel
- exchanger according
- expansion element
- Prior art date
Links
Classifications
-
- 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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
- F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
-
- 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
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F02M26/32—Liquid-cooled heat exchangers
-
- 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
- F28F9/0236—Header boxes; End plates floating elements
-
- 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
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates
-
- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
Definitions
- Heat exchangers in particular exhaust gas heat exchangers
- the invention relates to a heat exchanger for cooling gas or liquid media, in particular an exhaust gas heat exchanger for an internal combustion engine, with a tubular housing which has at least one inlet opening with an adjoining annular channel for the distributed inflow of a cooling medium into the interior of the housing.
- Such a heat exchanger is known from DE 102 38 882 AI and comprises a tubular housing in which a tube bundle for the axial flow of the exhaust gas is inserted, the tube bundle being flushed with an introduced coolant.
- a tube bundle for the axial flow of the exhaust gas is inserted, the tube bundle being flushed with an introduced coolant.
- thermal voltages arise during operation of the exhaust gas heat exchanger due to different expansions of the pipes and the housing.
- slots are arranged in the housing, which are sealed to the outside by a duct housing with a corrugated tube section. This creates an expansion compensation element integrated in the heat exchanger housing.
- the coolant is fed into the interior of the housing via an inlet opening made radially in the housing and an annular channel following downstream, through which one uniform distribution of the coolant flowing into the interior of the housing is to take place.
- the ring channel located inside the housing affects the cross-section through which the flow can flow and the manufacture of the heat exchanger.
- the ring channel alone, the most uniform possible circumferential distribution of the coolant over the interior of the housing and a largely uniform flow rate of the coolant inside the housing cannot yet be achieved.
- DE 296 12 361 Ul discloses another heat exchanger with an expansion compensation element integrated in the heat exchanger housing made of sheet metal.
- the invention is based on the object of further designing the generic heat exchanger in such a way that, with a simplified structure, a uniform inflow of coolant into the interior of the housing distributed over the circumference of the housing can be reliably achieved.
- the arrangement according to the invention of the ring channel on the outside of the housing ensures that the interior of the housing is no longer impaired in terms of installation space by the ring channel.
- the inlet opening is arranged on the channel housing and has a connecting piece for a hose line.
- the heat exchanger housing and the duct housing are made in one piece, e.g. is made by casting. Irrespective of this, it is also conceivable to produce the duct housing, for example from sheet metal, separately from the heat exchanger housing and to connect it tightly by welding or soldering.
- the duct housing is formed with a corrugated tube section and the passage openings are designed as slots which partially extend at an axial distance from one another over the circumference of the heat exchanger housing.
- the integrated expansion element simultaneously takes on the function of evenly distributing the coolant inside the housing.
- the expansion element with the inlet opening is arranged at the inlet end of the housing, the duct housing having a smooth one cylindrical part on the heat exchanger housing and the subsequent corrugated tube section is welded or soldered to the inlet-side flange of the housing.
- the heat exchanger shown in the exemplary embodiment is an exhaust gas heat exchanger 1 for cooling the exhaust gases of an internal combustion engine, in particular for cooling the exhaust gases returned to the combustion chamber of the internal combustion engine in certain operating states (so-called exhaust gas recirculation).
- the exhaust gas heat exchanger 1 has a tubular housing 2, each with a flange 3, 4 on the inflow side 5 and the outflow side 6.
- the housing 2 is U-shaped, so that the flanges 3 and 4 lie side by side.
- the U-shaped housing parts are interconnected by a tab 7.
- a sheet metal hanger 8 is provided for fastening the heat exchanger 1 to the internal combustion engine housing.
- a tube bundle extending in the longitudinal direction is arranged in the interior of the heat exchanger housing 2 and is tightly welded to the housing 2 via a tube plate at the longitudinal housing ends. This creates a coolant space for coolant between the housing 2 and the tube bundle for cooling the exhaust gases flowing through the individual tubes of the tube bundle itself.
- the housing 2 is in the region of the flange 3 lying on the inflow side 5 outside of a channel housing 9, which encloses an annular channel 10 relative to the housing 2.
- the channel housing 9 consists of sheet metal and is connected to the heat exchanger housing 2 by welding or soldering.
- the channel housing 2 can also consist of the same material as the housing 2 and can be made in one piece with it.
- the channel housing 2 has an inlet opening 11 with a connecting piece 12 for a coolant hose.
- passage openings 13 to 16 are arranged distributed over the circumference. Via the passage openings 13 to 16, the coolant directed from the connecting piece 11 into the annular channel 10 can thus flow into the interior of the housing 2 in a uniformly distributed manner, so that, in addition to a largely uniform heating, a largely uniform flow rate of the coolant along the surface of the pipes through which the exhaust gas flows is ensured.
- the coolant emerges from the housing 2 in the vicinity of the flange 4 on the outflow side 6 through a connecting piece 17.
- the duct housing 9 with the passage openings is a component of an expansion element 18 integrated in the housing 2.
- Openings 13 to 16 are designed as slots, each of which is arranged at an axial distance from one another over part of the circumference, while the channel housing 9, which covers the slots and is made of sheet metal, in addition to a smooth cylindrical housing section 19 for receiving the connecting piece 12, also has an additional corrugated pipe section 20 for the expansion compensation.
- the connecting pieces 12 and 17 are arranged close to the flanges 3 and 4. This leads to the expansion element 17 being positioned close to the flange 3, the housing section 19 being welded or soldered directly to the housing 2 and the corrugated pipe section 20 directly to the flange 3.
- the duct housing 9 is protected against external influences by means of a protective cover 21.
- the subject of the invention is shown in the combination of a heat exchanger with an expansion element.
- the invention also includes an embodiment of a heat exchanger without an expansion element, in which the channel housing 2 is designed without the additional corrugated tube section 20 and the through openings 13 to 16 are produced as simple bores.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/578,381 US20070144157A1 (en) | 2003-11-08 | 2004-10-28 | Heat exchanger, particularly exhaust heat exchanger |
BRPI0415736-2A BRPI0415736A (en) | 2003-11-08 | 2004-10-28 | heat exchanger, particularly exhaust heat exchanger |
EP04790976A EP1690057B1 (en) | 2003-11-08 | 2004-10-28 | Heat exchanger, particularly exhaust heat exchanger |
DE502004003643T DE502004003643D1 (en) | 2003-11-08 | 2004-10-28 | HEAT EXCHANGERS, ESPECIALLY EXHAUST HEAT EXCHANGERS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10352221A DE10352221A1 (en) | 2003-11-08 | 2003-11-08 | Heat exchanger, in particular exhaust gas heat exchanger |
DE10352221.2 | 2003-11-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005047799A1 true WO2005047799A1 (en) | 2005-05-26 |
Family
ID=34559493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/012206 WO2005047799A1 (en) | 2003-11-08 | 2004-10-28 | Heat exchanger, particularly exhaust heat exchanger |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070144157A1 (en) |
EP (1) | EP1690057B1 (en) |
BR (1) | BRPI0415736A (en) |
DE (2) | DE10352221A1 (en) |
WO (1) | WO2005047799A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29612361U1 (en) * | 1996-07-19 | 1996-08-29 | Gustav Wahler Gmbh U. Co, 73730 Esslingen | Cooler for gaseous or liquid media, in particular exhaust gas cooler, for an internal combustion engine |
JP2000045884A (en) * | 1998-07-24 | 2000-02-15 | Hino Motors Ltd | Egr cooler |
DE10238882A1 (en) * | 2001-10-24 | 2003-05-08 | Behr Gmbh & Co | Heat exchanger, in particular, in the form of an exhaust gas heat exchanger, comprises a set of tubes installed in a tubeplate attached to a housing provided with means allowing it to expand |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3217798A (en) * | 1962-12-05 | 1965-11-16 | American Radiator & Standard | Heat exchanger |
US3407870A (en) * | 1966-11-07 | 1968-10-29 | Braune Rudolf Ernst | Recuperative type heat exchanger |
US3422887A (en) * | 1967-06-19 | 1969-01-21 | Graham Mfg Co Inc | Condenser for distillation column |
DE3027510A1 (en) * | 1980-07-19 | 1982-02-18 | Hochtemperatur Reaktorbau Gmbh | DOME LID FOR CLOSING A VERTICAL EXCEPTION IN A PRESSURE VESSEL |
FR2497937B1 (en) * | 1981-01-13 | 1986-03-07 | Stein Industrie | TUBE BEAM HEAT EXCHANGE DEVICE WITH EXPANSION LYRES SUBTRACTED TO VIBRATION |
US4838581A (en) * | 1985-02-05 | 1989-06-13 | Asahi Glass Company Ltd. | Joint structure for a tube support plate and a tube |
US4875712A (en) * | 1985-02-05 | 1989-10-24 | Asahi Glass Company, Ltd. | Joint structure for a tube support plate and a tube |
DE3914862C2 (en) * | 1989-05-05 | 1993-12-16 | Productech Gmbh | Process for reducing mechanical stresses during welding |
US5584340A (en) * | 1995-08-07 | 1996-12-17 | Heatcraft Inc. | Heat exchanger with flexible tube support |
US6273180B1 (en) * | 1998-12-23 | 2001-08-14 | L'air Liquide, Societe Anonyme Pour L'etude Et L'eploitation Des Procedes Georges Claude | Heat exchanger for preheating an oxidizing gas |
US6684938B2 (en) * | 1999-01-20 | 2004-02-03 | Hino Motors, Ltd. | EGR cooler |
FR2797039B1 (en) * | 1999-07-27 | 2001-10-12 | Ziepack | HEAT EXCHANGER IN RELATED EXCHANGE MODULE |
US6474408B1 (en) * | 2000-08-31 | 2002-11-05 | Honeywell International Inc. | Heat exchanger with bypass seal allowing differential thermal expansion |
US6536231B2 (en) * | 2001-05-31 | 2003-03-25 | Carrier Corporation | Tube and shell heat exchanger for multiple circuit refrigerant system |
US6827138B1 (en) * | 2003-08-20 | 2004-12-07 | Abb Lummus Global Inc. | Heat exchanger |
US7198037B2 (en) * | 2004-12-14 | 2007-04-03 | Honeywell International, Inc. | Bypass for exhaust gas cooler |
-
2003
- 2003-11-08 DE DE10352221A patent/DE10352221A1/en not_active Withdrawn
-
2004
- 2004-10-28 DE DE502004003643T patent/DE502004003643D1/en active Active
- 2004-10-28 EP EP04790976A patent/EP1690057B1/en not_active Expired - Fee Related
- 2004-10-28 US US10/578,381 patent/US20070144157A1/en not_active Abandoned
- 2004-10-28 BR BRPI0415736-2A patent/BRPI0415736A/en not_active IP Right Cessation
- 2004-10-28 WO PCT/EP2004/012206 patent/WO2005047799A1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29612361U1 (en) * | 1996-07-19 | 1996-08-29 | Gustav Wahler Gmbh U. Co, 73730 Esslingen | Cooler for gaseous or liquid media, in particular exhaust gas cooler, for an internal combustion engine |
JP2000045884A (en) * | 1998-07-24 | 2000-02-15 | Hino Motors Ltd | Egr cooler |
DE10238882A1 (en) * | 2001-10-24 | 2003-05-08 | Behr Gmbh & Co | Heat exchanger, in particular, in the form of an exhaust gas heat exchanger, comprises a set of tubes installed in a tubeplate attached to a housing provided with means allowing it to expand |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05 14 September 2000 (2000-09-14) * |
Also Published As
Publication number | Publication date |
---|---|
US20070144157A1 (en) | 2007-06-28 |
BRPI0415736A (en) | 2006-12-19 |
DE502004003643D1 (en) | 2007-06-06 |
EP1690057B1 (en) | 2007-04-25 |
EP1690057A1 (en) | 2006-08-16 |
DE10352221A1 (en) | 2005-06-09 |
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