WO2015138182A1 - Connection for media lines on an exhaust-gas turbocharger - Google Patents
Connection for media lines on an exhaust-gas turbocharger Download PDFInfo
- Publication number
- WO2015138182A1 WO2015138182A1 PCT/US2015/018375 US2015018375W WO2015138182A1 WO 2015138182 A1 WO2015138182 A1 WO 2015138182A1 US 2015018375 W US2015018375 W US 2015018375W WO 2015138182 A1 WO2015138182 A1 WO 2015138182A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- connection
- exhaust
- housing
- gas turbocharger
- charger housing
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
- F01D25/125—Cooling of bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
- F02B37/183—Arrangements of bypass valves or actuators therefor
- F02B37/186—Arrangements of actuators or linkage for bypass valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/005—Cooling of pump drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- 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
Definitions
- the invention relates to an exhaust-gas turbocharger according to the preamble of claim 1.
- An exhaust-gas turbocharger of said type may be equipped with a charger housing which comprises a cooling jacket.
- Said cooling jacket may in this case be arranged either in the bearing housing, in the compressor housing, in the turbine housing or else in attached regulating elements.
- a coolant connection is provided which comprises a connection flange.
- the connection flange in turn has multiple connection fittings, wherein the connection flange is fixed to the charger housing such that the connection fittings are aligned with a respectively associated housing bore in order to be able to produce the required flow connection.
- an exhaust-gas turbocharger which has a coolant connection with at least one integrated feed pipe and one integrated discharge pipe which, after the installation process, extend through a single connection opening of the charger housing.
- "Charger housing” refers to a housing part of the exhaust-gas turbocharger, which may be a bearing housing, a turbine housing, a compressor housing and an actuator housing.
- connection opening or insertion recess in the charger housing can be implemented in a simpler manner, in particular formed as a cast opening which can be produced during the course of the casting of the charger housing.
- the at least one feed pipe has a bent pipe region which projects into the charger housing or into the cooling jacket thereof, it is made possible for a preferred flow direction to be imparted to the coolant that is fed via the feed pipe.
- the connection opening or introduction recess in the charger housing can be formed in a simpler manner and, by contrast to conventional known designs, short-circuited cooling that bypasses those regions of the charger housing which are to be cooled can be prevented.
- the discharge pipe is provided with a rounded inner pipe region which projects into the cooling jacket, it is made possible for pressure losses to be reduced and for the autosiphoning effect to thus be assisted in an effective manner.
- connection flange For the fastening of the connection flange, it is possible for the latter to be welded to the charger housing or else to be arranged and welded within the connection opening. In principle, however, other fastening means, for example a screw connection, soldered connection or adhesively bonded connection, are also conceivable. Further details, advantages and features of the present invention become apparent from the following description of an exemplary embodiment with reference to the drawing, in which:
- Figure 1 shows an exemplary embodiment of an exhaust-gas turbocharger according to the invention
- Figure 2 is a schematically simplified illustration of a coolant connection of the exhaust-gas turbocharger as per Figure 1, depicted on an enlarged scale, and
- Figure 3 is a further illustration of a further exemplary embodiment of a coolant connection such as can be provided on an exhaust-gas turbocharger as per Figure 1.
- FIG. 1 illustrates an exhaust-gas turbocharger 1 according to the invention in a schematically simplified illustration.
- the exhaust-gas turbocharger 1 has charger housings, specifically a compressor housing 12 with compressor wheel 16 arranged therein, a bearing housing 11 with charger shaft 17 mounted therein, an actuator housing 40, and a turbine housing 13 with turbine wheel 15 arranged therein.
- a device (not illustrated) for actuating a regulating element in the form of a wastegate 39.
- the actuator 40 has a cooling jacket 43 by means of which heat generated in the actuator 40 itself, and externally supplied heat, can be dissipated to a coolant.
- a cooling jacket 3 is likewise arranged in the bearing housing 11.
- a cooling jacket of said type it is also possible for a cooling jacket of said type to be arranged in the compressor housing 12 and/or in the turbine housing 13.
- the cooling circuit 43 of the actuator 40 may be connected to a low-pressure circuit.
- the exhaust-gas turbocharger 1 furthermore has a coolant connection 4; 4' which has a connection flange 5 fastened to the charger housing (in the example illustrated, to the bearing housing 11 thereof).
- connection flange 5 is, in the example, equipped with a feed pipe 6 for coolant and with a discharge pipe 7.
- feed pipe 6 and discharge pipe 7 are integrated components which are connected to and extend through the connection flange 5.
- connection opening 8 through which both the feed pipe 6 and the discharge pipe 7 extend, such that according to the invention, it is adequate for a single such connection opening 8 to be provided in the bearing housing 11 or actuator 40.
- the feed pipe 6 is equipped with a bent pipe region 9 which engages into the charger housing or the cooling jacket 5.
- a bent pipe region 9 of said type makes it possible for the coolant that is fed to have a preferred flow direction imparted to it.
- the discharge pipe 7 to have an internal geometric formation for reducing flow resistance, which geometric formation makes it possible for the coolant to be discharged from the cooling jacket 3 of the bearing housing 11 or from the cooling jacket 43 of the actuator 40 in an expedient manner in terms of flow, said geometric formation being in the form of an inlet diffuser 10, for example.
- a coolant connection 4' of alternative design is illustrated in Figure 3, said coolant connection having a single pipe 18 in which a feed line 6' and discharge line 7 may be formed. It can be seen that the pipe 18 has a bend in the interior of the bearing housing 11; 40 or actuator 40. An imaginary elongation of the feed line 7 ends at a housing section 19 which is formed as a means for diverting the coolant flow and which correspondingly diverts the coolant flow.
- the housing section 19 may be a thermally highly loaded region of the exhaust-gas turbocharger 1.
- the seal 14' illustrated in figure 3 is for example in the form of a flat seal (paper or FiNBR or NBR seal), though alternative seals are possible.
- the coolant connection 4' with the elements described in this paragraph can be used, with the same effectiveness as the coolant connection 4 described in conjunction with Figure 2, for cooling the charger housing 11 ; 40 illustrated in Figure 1.
- a seal 14; 14' is provided between the connection flange 5 and the charger housing 11; 40.
- the seal 14 illustrated in Figure 2 is in the form of an O-ring.
- the coolant connection 4, 4' is fixed to the bearing housing 11 or to the actuator 40 by means of a fixing element 50 which acts on the connection flange 5. It is self- evidently also possible for a welded connection (not illustrated) to be used for fixing purposes.
- a welded connection (not illustrated) to be used for fixing purposes.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Supercharger (AREA)
Abstract
The present invention relates to an exhaust-gas turbocharger (1) having a charger housing and having a cooling jacket (3) in the charger housing, which cooling jacket has a coolant connection (4) which is fastened to the charger housing and which comprises a connection flange (5), wherein the connection flange has at least one feed pipe (6) and one discharge pipe (7) which extend through the connection flange (5) and a single connection opening (8) of the charger housing.
Description
CONNECTION FOR MEDIA LINES ON AN EXHAUST-GAS
TURBOCHARGER
DESCRIPTION
The invention relates to an exhaust-gas turbocharger according to the preamble of claim 1.
An exhaust-gas turbocharger of said type may be equipped with a charger housing which comprises a cooling jacket. Said cooling jacket may in this case be arranged either in the bearing housing, in the compressor housing, in the turbine housing or else in attached regulating elements. To make it possible for a coolant to be supplied to the cooling jacket, a coolant connection is provided which comprises a connection flange. In the case of generic exhaust-gas turbochargers, the connection flange in turn has multiple connection fittings, wherein the connection flange is fixed to the charger housing such that the connection fittings are aligned with a respectively associated housing bore in order to be able to produce the required flow connection.
The disadvantage of this known arrangement is however that precise bores for the connection fittings must be formed in the charger housing, but this considerably increases the outlay in terms of production. Furthermore, by means of this arrangement, when the coolant pump is deactivated, a circulating flow in the water jacket is prevented because the coolant, owing to the forced direct introduction and discharge without a facility for short-circuited flow, cannot circulate, or can circulate only to an inadequate extent, in the component to be cooled. This arises in particular when, for example, the engine has been shut down and the remaining residual heat of the exhaust-gas turbocharger in the for example liquid-cooled bearing housing must be dissipated. To remedy this, use is often made here of so-called afterrunning pumps which generate a forced throughflow over a temporally restricted time period.
It is therefore an object of the present invention to provide an exhaust-gas turbocharger of the type indicated in the preamble of claim 1, which exhaust-gas turbocharger has a coolant connection which is of simple construction and which can be installed in a simple manner.
This object is achieved by the features of claim 1.
According to the invention, an exhaust-gas turbocharger is provided which has a coolant connection with at least one integrated feed pipe and one integrated discharge
pipe which, after the installation process, extend through a single connection opening of the charger housing. "Charger housing" refers to a housing part of the exhaust-gas turbocharger, which may be a bearing housing, a turbine housing, a compressor housing and an actuator housing.
This firstly yields the advantage that the connection opening or insertion recess in the charger housing can be implemented in a simpler manner, in particular formed as a cast opening which can be produced during the course of the casting of the charger housing. This yields an inexpensive and technically better form of the coolant connection and of the connection opening in the charger housing.
The dependent claims contain advantageous developments of the invention.
If the at least one feed pipe has a bent pipe region which projects into the charger housing or into the cooling jacket thereof, it is made possible for a preferred flow direction to be imparted to the coolant that is fed via the feed pipe. In this way, the connection opening or introduction recess in the charger housing can be formed in a simpler manner and, by contrast to conventional known designs, short-circuited cooling that bypasses those regions of the charger housing which are to be cooled can be prevented.
At the same time, an autosiphoning effect is possible during the engine post- heating phase. Since the voltage supply of the engine must or can be shut down after a certain period of time for safety reasons, it may be necessary for the cooling to be maintained using other means. This applies in particular to applications in which, owing to thermal insulation measures, the component to be cooled is subject to high thermal loads during post-heating operation. This relates in particular to engines with cylinders in a "V" arrangement, in which the outlet is situated in the middle of the "V".
If the discharge pipe is provided with a rounded inner pipe region which projects into the cooling jacket, it is made possible for pressure losses to be reduced and for the autosiphoning effect to thus be assisted in an effective manner.
For the fastening of the connection flange, it is possible for the latter to be welded to the charger housing or else to be arranged and welded within the connection opening. In principle, however, other fastening means, for example a screw connection, soldered connection or adhesively bonded connection, are also conceivable.
Further details, advantages and features of the present invention become apparent from the following description of an exemplary embodiment with reference to the drawing, in which:
Figure 1 shows an exemplary embodiment of an exhaust-gas turbocharger according to the invention, and
Figure 2 is a schematically simplified illustration of a coolant connection of the exhaust-gas turbocharger as per Figure 1, depicted on an enlarged scale, and
Figure 3 is a further illustration of a further exemplary embodiment of a coolant connection such as can be provided on an exhaust-gas turbocharger as per Figure 1.
Figure 1 illustrates an exhaust-gas turbocharger 1 according to the invention in a schematically simplified illustration. The exhaust-gas turbocharger 1 has charger housings, specifically a compressor housing 12 with compressor wheel 16 arranged therein, a bearing housing 11 with charger shaft 17 mounted therein, an actuator housing 40, and a turbine housing 13 with turbine wheel 15 arranged therein. In the actuator housing 40 there is provided a device (not illustrated) for actuating a regulating element in the form of a wastegate 39. The actuator 40 has a cooling jacket 43 by means of which heat generated in the actuator 40 itself, and externally supplied heat, can be dissipated to a coolant.
In the embodiment illustrated in figure 1, a cooling jacket 3 is likewise arranged in the bearing housing 11. In principle, however, it is also possible for a cooling jacket of said type to be arranged in the compressor housing 12 and/or in the turbine housing 13. The cooling circuit 43 of the actuator 40 may be connected to a low-pressure circuit.
The exhaust-gas turbocharger 1 according to the invention furthermore has a coolant connection 4; 4' which has a connection flange 5 fastened to the charger housing (in the example illustrated, to the bearing housing 11 thereof).
As can be seen from a juxtaposition of Figures 1, 2 and 3, the connection flange 5 is, in the example, equipped with a feed pipe 6 for coolant and with a discharge pipe 7. In principle, it is also possible for a multiplicity of such feed pipes and discharge pipes to be provided. The feed pipe 6 and the discharge pipe 7 are integrated components which are connected to and extend through the connection flange 5.
In the bearing housing 11 there is furthermore provided a connection opening 8 through which both the feed pipe 6 and the discharge pipe 7 extend, such that according to the invention, it is adequate for a single such connection opening 8 to be provided in the bearing housing 11 or actuator 40.
As can be seen in particular from the enlarged illustration of Figure 2, the feed pipe 6 is equipped with a bent pipe region 9 which engages into the charger housing or the cooling jacket 5. A bent pipe region 9 of said type makes it possible for the coolant that is fed to have a preferred flow direction imparted to it.
Provision is made for the discharge pipe 7 to have an internal geometric formation for reducing flow resistance, which geometric formation makes it possible for the coolant to be discharged from the cooling jacket 3 of the bearing housing 11 or from the cooling jacket 43 of the actuator 40 in an expedient manner in terms of flow, said geometric formation being in the form of an inlet diffuser 10, for example.
A coolant connection 4' of alternative design is illustrated in Figure 3, said coolant connection having a single pipe 18 in which a feed line 6' and discharge line 7 may be formed. It can be seen that the pipe 18 has a bend in the interior of the bearing housing 11; 40 or actuator 40. An imaginary elongation of the feed line 7 ends at a housing section 19 which is formed as a means for diverting the coolant flow and which correspondingly diverts the coolant flow. The housing section 19 may be a thermally highly loaded region of the exhaust-gas turbocharger 1. The seal 14' illustrated in figure 3 is for example in the form of a flat seal (paper or FiNBR or NBR seal), though alternative seals are possible. The coolant connection 4' with the elements described in this paragraph can be used, with the same effectiveness as the coolant connection 4 described in conjunction with Figure 2, for cooling the charger housing 11 ; 40 illustrated in Figure 1.
In the embodiment illustrated in Figures 1, 2 and 3, a seal 14; 14' is provided between the connection flange 5 and the charger housing 11; 40. The seal 14 illustrated in Figure 2 is in the form of an O-ring.
The coolant connection 4, 4' is fixed to the bearing housing 11 or to the actuator 40 by means of a fixing element 50 which acts on the connection flange 5. It is self- evidently also possible for a welded connection (not illustrated) to be used for fixing purposes.
In addition to the above written disclosure, reference is hereby explicitly made,r supplementation of said disclosure, to the illustration of the invention in Figures 1 , and 3.
LIST OF REFERENCE SIGNS
Exhaust-gas turbocharger
Cooling jacket
Coolant connection
* Coolant connection
Connection flange
Feed pipe
' Feed pipe
Discharge pipe
Discharge pipe
Connection opening
Bent pipe region
0 Inlet diffuser
1 Bearing housing
2 Compressor housing
3 Turbine housing
4 Seal
4' Seal
5 Turbine wheel
6 Compressor wheel
7 Bearing shaft
8 Pipe
9 Housing section
9 Wastegate
0 Actuator housing
3 Cooling jacket
0 Fixing element
Claims
1. An exhaust-gas turbocharger (1)
having a charger housing; and
having a cooling jacket (3) in the charger housing, which cooling jacket has a coolant connection (4) which is fastened to the charger housing and which comprises a connection flange (5),
characterized in that
the connection flange (5) has at least one feed pipe (6) and one discharge pipe (7) which extend through the connection flange (5) and a single connection opening (8) of the charger housing.
2. The exhaust-gas turbocharger as claimed in claim 1, characterized in that the feed pipe (6) has a bent pipe region (9) which projects into the charger housing.
3. The exhaust-gas turbocharger as claimed in claim 1 or 2, characterized in that a means for diverting a coolant that flows in through the feed pipe (6) is provided in an imaginary elongation of the feed pipe (6).
4. The exhaust-gas turbocharger as claimed in one of claims 1 to 3, characterized in that the discharge pipe (7) has an inner pipe region (10) which reduces the flow resistance.
5. The exhaust-gas turbocharger as claimed in one of claims 1 to 4, characterized in that the connection opening (8) is a cast opening of the charger housing.
6. The exhaust-gas turbocharger as claimed in one of claims 1 to 5, characterized in that the charger housing is a bearing housing (11) equipped with the cooling jacket (3).
7. The exhaust-gas turbocharger as claimed in one of claims 1 to 6, characterized in that the charger housing is an actuator housing (40) equipped with the cooling jacket (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112015000545.5T DE112015000545T5 (en) | 2014-03-11 | 2015-03-03 | Connection for media lines on an exhaust gas turbocharger |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014204419 | 2014-03-11 | ||
| DE102014204419.7 | 2014-03-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015138182A1 true WO2015138182A1 (en) | 2015-09-17 |
Family
ID=54072268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2015/018375 Ceased WO2015138182A1 (en) | 2014-03-11 | 2015-03-03 | Connection for media lines on an exhaust-gas turbocharger |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE112015000545T5 (en) |
| WO (1) | WO2015138182A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018208609A1 (en) * | 2017-05-09 | 2018-11-15 | Borgwarner Inc. | Backplate and method of making and using the same |
| US12221955B2 (en) | 2019-10-21 | 2025-02-11 | Anhui Meizhi Compressor Co., Ltd. | Connecting structure, exhaust silencer, silencer, and compressor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017215557A1 (en) * | 2017-09-05 | 2019-03-07 | Man Diesel & Turbo Se | turbocharger |
| DE102021205021A1 (en) | 2021-05-18 | 2022-11-24 | Psa Automobiles Sa | Line element for a liquid-cooled component of an internal combustion engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928637A (en) * | 1988-08-30 | 1990-05-29 | Fuji Jukogyo Kabushiki Kaisha | System for cooling an internal combustion engine including a turbocharger |
| US20040083730A1 (en) * | 2002-07-26 | 2004-05-06 | Eberhard Wizgall | Cooling system for turbocharged internal combustion engine |
| US20100296920A1 (en) * | 2007-08-06 | 2010-11-25 | Continental Automotive Gmbh | Turbocharger comprising a cooling device and an oil supply pipe |
| JP2013011253A (en) * | 2011-06-30 | 2013-01-17 | Mitsubishi Heavy Ind Ltd | Cooling structure for bearing housing for turbocharger |
| CN103016138A (en) * | 2012-11-07 | 2013-04-03 | 沈阳航天三菱汽车发动机制造有限公司 | Turbocharged engine |
-
2015
- 2015-03-03 WO PCT/US2015/018375 patent/WO2015138182A1/en not_active Ceased
- 2015-03-03 DE DE112015000545.5T patent/DE112015000545T5/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928637A (en) * | 1988-08-30 | 1990-05-29 | Fuji Jukogyo Kabushiki Kaisha | System for cooling an internal combustion engine including a turbocharger |
| US20040083730A1 (en) * | 2002-07-26 | 2004-05-06 | Eberhard Wizgall | Cooling system for turbocharged internal combustion engine |
| US20100296920A1 (en) * | 2007-08-06 | 2010-11-25 | Continental Automotive Gmbh | Turbocharger comprising a cooling device and an oil supply pipe |
| JP2013011253A (en) * | 2011-06-30 | 2013-01-17 | Mitsubishi Heavy Ind Ltd | Cooling structure for bearing housing for turbocharger |
| CN103016138A (en) * | 2012-11-07 | 2013-04-03 | 沈阳航天三菱汽车发动机制造有限公司 | Turbocharged engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018208609A1 (en) * | 2017-05-09 | 2018-11-15 | Borgwarner Inc. | Backplate and method of making and using the same |
| US12221955B2 (en) | 2019-10-21 | 2025-02-11 | Anhui Meizhi Compressor Co., Ltd. | Connecting structure, exhaust silencer, silencer, and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112015000545T5 (en) | 2016-10-27 |
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