DE102013006302A1 - Charged internal combustion engine in modular design and modular systems for such internal combustion engines and charging devices - Google Patents

Abstract

For supercharged internal combustion engine, modular system, with engines (11, 11 ''), the cylinder (12), wherein the cylinders of the respective engine via a charge air line leading to the cylinder compressed charge air can be fed, and wherein the cylinders of the respective engine via a exhaust gas leading away from the cylinders exhaust gas can be discharged; and with charging devices (13, 13 ', 13' '), the at least one exhaust gas turbocharger (15, 16), wherein in the or each exhaust gas turbocharger (15, 16) of the respective supercharger discharged from cylinders of the respective engine exhaust gas exhausted and thereby obtained Energy for compressing the charge air to be supplied to the cylinders of the respective engine can be used; wherein the charging devices (13, 13 ', 13' ') of several modular modules are composable, namely such that for an engine (11) in R-type a charge air cooler housing (24, 24'), which a charge air side interface of the charging device to the engine and an engine side exhaust manifold defining an exhaust side interface of the supercharger to the engine, depending on whether the supercharger is connected to a clutch side (29) or a clutch reverse side (30) of the engine, whereas an air intake element (23), which defines a charge air side interface of the supercharger to the environment, and an ambient side exhaust manifold (22) defining an exhaust side interface of the supercharger to the environment, regardless of whether the supercharger is on the clutch side (29) or the clutch reverse side (30) of the engine the same is connected; and that for a V-type engine (11 ''), the intercooler housings (24, 24 '), the engine exhaust manifolds and the air intake elements (23) of the R-type engine are used, but adapted to the V-type design , Ambient exhaust manifold (22 '') and a V-shaped water box (28 '') is used.

Description

The invention relates to a supercharged internal combustion engine in modular design. Furthermore, the invention relates to a modular system for supercharged internal combustion engines and a modular system for charging devices.

So far, internal combustion engines are always individually tailored to a defined purpose and defined requirements engine designed. If an internal combustion engine to be newly developed, so all modules are subjected to a new development in the rule. This is also the case with supercharged internal combustion engines of the case in which in particular the modules of a supercharger are always designed individually, namely adapted to whether the supercharger is connected to a clutch side or a clutch side to the actual engine of the engine, and adapted to whether the supercharger is used on an R-type motor or on a V-type motor. So far, it is not possible, or only to a very limited extent, to access existing components in a new development of an internal combustion engine and to continue to use them. This is a disadvantage.

Proceeding from this, the object of the invention is to provide a modular system for supercharged internal combustion engines, a modular system for superchargers and a supercharged internal combustion engine in modular design.

This object is achieved by a modular system for supercharged internal combustion engines according to claim 1.

The modular system for a supercharged internal combustion engine comprises engines having cylinders, wherein charge air can be supplied to the cylinders of the respective engine via a charge air duct leading to the cylinders, and exhaust gas can be discharged from the cylinders of the respective engine via an exhaust pipe leading away from the cylinders. Further, the modular system comprises charging devices having at least one exhaust gas turbocharger, wherein in the or each exhaust gas turbocharger of the respective charging device of exhaust gases of the respective engine exhaust gas dissipated and thereby recovered energy for compressing the charge air to be supplied to the cylinders is available.

The charging devices are composed of a plurality of modular modules, namely such that for an engine in R-construction, a charge air cooler housing, which defines a charge air side interface of the charging device to the engine, and an engine side exhaust manifold, which defines an exhaust side interface of the charging device to the engine, depending thereon whether the supercharger is connected to the same on a clutch side or a clutch side of the engine, whereas an air intake element defining a charge air side interface of the supercharger to the environment and an ambient side exhaust manifold defining an exhaust side interface of the supercharger to the environment are independent; whether the supercharger on the clutch side or the clutch reverse side of the engine is connected to the same; and that for a V-type engine, the intercooler housings, the engine exhaust manifolds, and the air intake elements for the R-type engine are used, but a V-type, ambient exhaust manifold is used. This V-type-adapted, ambient-side exhaust manifold is independent of whether the charging device on the clutch side or the clutch-opposite side of the V-shaped engine is connected to the same.

The modular system according to the invention makes it possible to transfer calculation and test results incurred in the development of an internal combustion engine to other internal combustion engines. For different internal combustion engines, unitary module concepts can thus be provided and module variants can be reduced via the different configurations of the internal combustion engines. Furthermore, the spare parts inventory at the customer and manufacturer can be simplified. Training costs for customers and service personnel can be reduced.

For an R-engine engine having a multistage turbocharger preferably having a high pressure turbocharger and a low pressure turbocharger, the or each turbocharger, the or each charge air cooler, a water box, and optionally an air passage from the charge air cooler housing to the high pressure turbocharger, whether the charge side or the supercharger Coupling side of the engine is connected to the same. For an R-type engine, an exhaust manifold extending between the high-pressure turbocharger and the low-pressure turbocharger is dependent on whether the supercharger on the clutch side or the opposite-coupling side of the engine is connected thereto.

For a V-type engine, the or each turbocharger, the or each intercooler and, where appropriate, the air flow from the Intercooler housing to the high-pressure turbocharger of the engine in R-construction used.

For a V-type engine, a V-type water box is used regardless of whether the supercharger is connected to the clutch side of the V-type engine or the V-type engine clutch side is connected to the same.

This makes it possible, both for motors in R-construction as well as for engines in V-construction for the different connection possibilities of the charging device to the engine, namely for the possibility of connection to the opposite coupling side and the possibility of connection to the opposite side of the engine coupling, the number of identical parts to increase and reduce the number of to be adapted to the specific embodiment of the engine assemblies to a minimum.

An internal combustion engine according to the invention in modular form is defined in claim 7. An inventive modular system for charging devices is defined in claim 9.

Preferred embodiments of the invention will become apparent from the dependent claims and the description below. Embodiments of the invention will be described, without being limited thereto, with reference to the drawings.

Showing:

1 a first internal combustion engine in modular design;

2 the internal combustion engine of 1 in a second view;

3 a second internal combustion engine in modular design;

4 the internal combustion engine of 3 in a second view;

5 a third internal combustion engine in modular design; and

6 a fourth internal combustion engine in modular design.

The present invention relates to a supercharged internal combustion engine in modular form, in which regardless of the specific design of the internal combustion engine, a plurality of core components thereof can be used unchanged or with minimal adjustments in terms of a morphological modular system.

Furthermore, the invention relates to a modular system for supercharged internal combustion engines and a modular system for charging devices of internal combustion engines.

1 to 6 show different embodiments of internal combustion engines according to the invention, which are formed using the modular system according to the invention, namely the modular system according to the invention for supercharged internal combustion engines and the modular system for charging devices according to the invention.

To show 1 and 2 a first embodiment of an internal combustion engine 10 that have a motor 11 with several cylinders 12 and a charging device 13 includes.

In the cylinders 12 of the motor 11 fuel is burned, in which case the cylinders 12 of the motor 11 about one to the cylinders 12 leading and in 1 and 2 invisible charge air duct in the charging device 13 compressed charge air can be supplied, and wherein the cylinders 12 of the motor 11 Exhaust gas, which is produced during the combustion of fuel, over one of the cylinders 12 leading exhaust pipe 14 towards the charging device 13 can be dissipated. In 1 and 2 it is the engine 11 to an engine in R-construction, in which all cylinders 12 are arranged one behind the other in a row.

The charging device 13 the internal combustion engine 10 of the 1 and 2 includes in the illustrated embodiment, a plurality of exhaust gas turbochargers, namely a low-pressure turbocharger 15 and a high-pressure turbocharger 16 , The low pressure turbocharger 15 includes a low pressure compressor 17 and a low-pressure turbine 18 , The high pressure turbocharger 16 includes a high pressure compressor 19 and a high-pressure turbine 20 ,

In the two exhaust gas turbochargers 15 . 16 can exhaust, which via the exhaust pipe 14 from the cylinders 12 of the motor 11 is dissipated, relaxed to energy gained here to compress the cylinders 12 of the motor 11 to use supplied charge air.

Exhaust, which from the cylinders 12 of the motor 11 towards the charging device 13 the internal combustion engine of 1 and 2 is discharged, first reaches the area of the high-pressure turbine 20 of the high pressure turbocharger 16 , where the exhaust gas in the high-pressure turbine 20 of the high pressure turbocharger 16 is partially relaxed and then in the area of the low-pressure turbine 18 of the low-pressure turbocharger 15 arrives, around in the area of the low-pressure turbine 18 of the low-pressure turbocharger 15 to be relaxed further. The transfer of the exhaust gas from the exhaust pipe 14 towards the high-pressure turbine 20 of the high pressure turbocharger 16 takes place via an in 1 and 2 not shown, engine side exhaust manifold, between the exhaust pipe 14 and the high-pressure turbine 20 of the high pressure turbocharger 16 is switched. Between the high pressure turbine 20 of the high pressure turbocharger 16 and the low-pressure turbine 18 of the low-pressure turbocharger 15 extends another exhaust manifold 21 to remove the exhaust gas from the high-pressure turbine 20 in the area of the low-pressure turbine 18 to lead. Exhaust gas, which is the low-pressure turbine 18 of the low-pressure turbocharger 15 leaves, passes through an ambient exhaust manifold 22 into the environment of the charging device 13 , This is to be understood as a chimney or leading to an exhaust aftertreatment system exhaust pipe.

The at the relaxation of the exhaust gas in the exhaust gas turbochargers 15 . 16 energy gained is used to successively compress charge air, according to 1 and 2 via an air intake element 23 , which preferably has a silencer, air is sucked from the environment, the first in the region of the low-pressure compressor 17 of the low-pressure turbocharger 15 is compressed.

Starting from the low-pressure compressor 17 of the low-pressure turbocharger 15 is compressed charge air in a charge air cooler housing 24 recorded first intercooler 25 then fed into the area of the high pressure compressor 19 of the high pressure turbocharger 16 to get. The high pressure compressor 19 of the high pressure turbocharger 16 leaving charge air is via an air duct 33 another from the intercooler housing 24 recorded intercooler 27 fed, followed by the intercooler 27 leaving charge air through the intercooler housing 24 in the 1 and 2 Not shown charge air line is supplied to the cylinders 12 the internal combustion engine 10 to be fed. With the intercooler housing 24 or the charge air coolers received by the same 25 . 27 a water box acts 28 together, in which is provided for cooling the charge air required cooling medium. In the embodiment of 1 and 2 are all assemblies of the charging device 13 at the so-called coupling side 29 of the motor 11 installed.

In the 1 and 2 shown internal combustion engine is formed or assembled from a modular system, wherein the modular system comprises motors and charging devices, of which the in 1 and 2 shown engine 11 in R-construction as well as in 1 and 2 shown assemblies of the charging device 13 to connect them to the coupling side 29 of the motor 11 are selected or removed.

Here is the charging device 13 composed of several modular modules of the modular system, namely such that for an engine in R-construction, the intercooler housing 24 , which is a charge-air-side interface of the charging device 13 to the engine 11 defined, and the motor-side, in 1 and 2 exhaust manifold, not shown, which has an exhaust-side interface of the charging device 13 to the engine 11 depending on whether the charging device 13 on the clutch side or clutch side of the engine 11 is connected.

On the other hand are the air intake 23 , which is a charge-air-side interface of the charging device 13 defined to the environment, and the ambient exhaust manifold 23 , which has an exhaust-side interface of the charging device 13 defined to the environment, regardless of whether the charging device 13 on the clutch side or on the opposite side of the engine 11 is connected.

Further, in an R-type engine having a multi-stage supercharger 13 the high-pressure turbocharger 16 , the low-pressure turbocharger 15 , the intercooler 25 and 27 , the water box 28 and the air duct 26 from the intercooler housing 24 to the high-pressure turbocharger 16 regardless of whether the charging device 13 is connected to the clutch side or on the opposite side of the coupling of the engine. On the other hand, for an engine in R-construction an in 1 and 2 invisible airflow from the low-pressure turbocharger 15 to the intercooler housing 24 and between the high-pressure turbocharger 16 and the low-pressure turbocharger 15 extending exhaust manifold 21 depending on whether the charging device 13 is connected to the clutch side or on the opposite side of the coupling of the engine.

The above relationships for the modular modules of the engine in R-construction, so for those modular modules of the charging device 13 that are independent of whether the charging device 13 is attached to the clutch side or on the opposite side of the engine coupling, and for those modular modules, which are dependent on whether the supercharger is connected to the clutch side or coupling opposite side of the engine, also result from 3 and 4 which is an internal combustion engine 10 with a motor 11 in R-construction show, in which the charging device 13 in contrast to the embodiment of 1 and 2 not on the clutch side of the engine 11 tethered, but rather, to the coupling opposite side 30 of the motor 11 ,

In 3 and 4 the same reference numbers are used for the same components as in 1 and 2 , wherein for such modular modules of the charging device 13 ' of the motor 10 ' of the 3 and 4 which are in the R-type engine depending on whether the supercharger is connected to the clutch side or to the coupling opposite side, a reference numeral provided with a superscript. So follows from a comparison of the internal combustion engine 10 of the 1 and 2 with the internal combustion engine 10 ' of the 3 and 4 that for the charging devices 13 . 13 ' eight modular modules of the charging devices 13 . 13 ' are identical and four modular modules of the charging devices 13 . 13 ' depending on whether the charging device to the clutch side or coupling side of the engine 11 is connected.

As stated above, the charge air cooler housing is for an R-type engine 24 . 24 ' which defines the charge side interface of the supercharger to the engine, and the engine side exhaust manifold, not shown, which defines an exhaust side interface of the supercharger to the engine, depending on whether the supercharger is connected to the clutch side or to the clutch opposite side of the engine.

Furthermore, for the engine in R-construction, the between the high-pressure turbocharger 16 and the low-pressure turbocharger 15 extending exhaust manifold 21 . 21 ' depending on whether the charging device 13 . 13 ' is connected to the clutch side or coupling opposite side of the engine.

In contrast, for an R-type engine, the air intake element 23 , which defines a charge air side interface of the supercharger to the environment, and the ambient side exhaust manifold 22 , which is the exhaust side interface 23 Defined charging device to the environment, regardless of whether the supercharger is connected to the clutch side or coupling side of the engine.

Further, for an R-type engine, the high-pressure turbocharger 16 , the low-pressure turbocharger 15 , the intercooler 25 and 27 , the water box 28 and the air duct 26 from the intercooler housing 24 . 24 ' to the high-pressure turbocharger 16 regardless of whether the supercharger is connected to the clutch side or to the opposite side of the engine coupling.

The modular system according to the invention for the supercharged internal combustion engines or the modular system according to the invention for the superchargers of such internal combustion engines also allows the use of a plurality of identical parts or identical modular modules, which are used in an R-engine engine, for a V-engine.

So shows 5 an internal combustion engine 10 '' with a motor 11 '' in V-construction, its cylinder 12 are grouped into two banks of cylinders that are at a V angle to each other. For the engine 11 '' in V construction, one high-pressure turbocharger is fitted to each cylinder bank 16 and one low-pressure turbocharger each 15 for use, being for the engine 11 '' in V-construction these two turbochargers 15 . 16 identical to the turbochargers 15 . 16 are used in an R-type motor. Continue to arrive at an engine 11 '' in V-construction especially the intercooler housing 24 . 24 ' with the intercoolers 25 . 27 , the engine-side exhaust manifold and the exhaust manifold 21 . 21 ' , the air intake elements 23 and the air ducts from the intercooler housings 24 . 24 ' to the turbochargers of the engine in R-construction identical to the use.

For a motor 11 '' in V-construction, however, is adapted to the V-construction, ambient exhaust manifold 22 '' kept ready in which the exhaust gas from both low-pressure turbochargers 15 can be directed. For a motor 11 '' in V-construction is this ambient side exhaust manifold 22 '' regardless of whether the charging device 13 '' to the clutch side or to the opposite side of the clutch of the engine 11 '' Tailored in V-construction.

For a motor 11 '' in V-construction continues to come fitted to the V-type water tank 28 '' used according to 5 below the two also used in an R-type engine intercooler housing 24 . 24 ' extends, this water box 28 '' , to the engine 11 '' is adapted in V-type construction, regardless of whether the charging device 13 '' on the clutch side or on the opposite side of the engine 11 '' is connected.

In the modular system according to the invention therefore come for a motor 11 R-type design uses a variety of modular components that are independent of whether the R-type motor is to be connected to the R-type motor for an R-type motor 13 . 13 ' on the coupling side 29 or coupling counterpart 30 of the motor 11 is to be connected. In the illustrated embodiment, at least eight modular modules can be kept regardless of whether the charging device is to be mounted on the coupling side or coupling opposite side for an engine in R-construction. A smaller number of modular modules, namely in the preferred embodiment only four modular modules, are for a motor 11 in R-construction depending on whether the charging device on the clutch side 29 or coupling counterpart 30 the engine is connected. For a motor 11 '' in V-construction, only two additional modular modules have to be kept ready, which are adapted to the V-construction, these two modules described above 22 '' and 28 '' regardless of whether the charging device 13 '' is to be connected to the coupling side or coupling opposite side.

6 shows a development of the invention for the internal combustion engine 10 ' of the 3 and 4 in which the charging device 13 ' as an additional modular system of the modular system an SCR catalytic converter 31 is connected, namely such that exhaust, which is the high-pressure turbocharger 16 leaves, first over the SCR catalyst 31 is passed before the exhaust gas in the area of the low-pressure turbocharger 15 arrives.

This SCR catalyst 31 is regardless of whether an engine 11 in R-construction or an engine 11 '' in V-construction, and regardless of whether the charging device on the coupling side 29 or coupling counterpart 30 to be connected to the respective engine.

The present invention accordingly modular systems for supercharged internal combustion engines and charging devices are proposed, which make it possible to provide a variety of identical modular modules for motors in R-construction as well as for V-type engines and for the different connection possibilities of the charging device on the clutch side and opposite coupling side, which makes it possible to reduce assembly variants, to keep training costs for customers low and to continue to use existing calculation and test results when developing new engines.

Claims (10)

Modular system for supercharged internal combustion engines, with engines ( 11 . 11 '' ), the cylinders ( 12 ), wherein the cylinders ( 12 ) of the respective engine can be supplied via a charge air line leading to the cylinder compressed charge air, and wherein of the cylinders ( 12 ) of the respective engine via an exhaust pipe leading away from the exhaust gas exhaust is discharged; with charging devices ( 13 . 13 ' . 13 '' ), the at least one exhaust gas turbocharger ( 15 . 16 ), wherein in the or each exhaust gas turbocharger ( 15 . 16 ) the exhaust gas discharged from respective cylinders of the respective engine exhaust gas dissipated and recovered energy for compressing the cylinders of the respective engine to be supplied charge air is usable; the charging devices ( 13 . 13 ' . 13 '' ) are composed of several modular modules, namely such that for a motor ( 11 ) in R-construction a charge air cooler housing ( 24 . 24 ' ), which defines a charge-side interface of the supercharger to the engine, and an engine-side exhaust manifold, which defines an exhaust-side interface of the supercharger to the engine, depending on whether the supercharger is on a clutch side ( 29 ) or a coupling counterpart ( 30 ) of the engine is connected to the same, whereas an air intake element ( 23 ), which defines a charge side interface of the charging device to the environment, and an ambient side exhaust manifold ( 22 ), which defines an exhaust-side interface of the charging device to the environment, regardless of whether the charging device on the coupling side ( 29 ) or the coupling opposite side ( 30 ) of the engine is connected to the same; for a motor ( 11 '' ) in V-construction, the intercooler housing ( 24 . 24 ' ), the exhaust manifolds on the engine side and the air intake elements ( 23 ) of the R-type engine, but a V-type, ambient exhaust manifold (US Pat. 22 '' ) is used. Modular system according to claim 1, characterized in that for a motor ( 11 '' ) in V-construction of the ambient side exhaust manifold ( 22 '' ) regardless of whether the supercharger is connected to a clutch side or a clutch side of the engine to the same. Modular system according to claim 1 or 2, characterized in that for a motor ( 11 ) in R-construction with in particular a high-pressure turbocharger ( 16 ) and a low-pressure turbocharger ( 15 ), the or each turbocharger ( 15 . 16 ), the or each intercooler ( 25 . 27 ), a water tank ( 28 ) and optionally an air duct ( 26 ) from the intercooler housing ( 24 . 24 ' ) to the high-pressure turbocharger ( 16 ) regardless of whether the charging device ( 13 . 13 ' ) on the coupling side ( 29 ) or the coupling opposite side ( 30 ) of the respective engine ( 11 . 11 ' ) is connected to the same. Modular system according to claim 3, characterized in that for a motor ( 11 . 11 ' ) in R-construction, between the high-pressure turbocharger ( 16 ) and the low-pressure turbocharger ( 15 ) extending exhaust manifold ( 21 . 21 ' ) and optionally an air duct from the low-pressure turbocharger ( 15 ) to the intercooler housing ( 24 . 24 ' ) depending on whether the charging device ( 13 . 13 ' ) on the coupling side ( 29 ) or the coupling opposite side ( 30 ) of the respective engine ( 11 . 11 ' ) is connected to the same. Modular system according to claim 3 or 4, characterized in that for a motor ( 11 '' ) in V-construction of the or each turbocharger ( 15 . 16 ), the or each intercooler ( 25 . 27 ) and optionally the air duct ( 26 ) from the intercooler housing ( 24 . 24 ' ) to the high-pressure turbocharger ( 16 ) are used for the engine in R-construction. Modular system according to claim 5, characterized in that for a motor ( 11 '' ) in V-construction a water tank adapted to the V-construction ( 28 '' ) is used, which is independent of whether the charging device ( 13 '' ) is attached to a clutch side or a clutch side of the engine to the same. Internal combustion engine in modular design, with a motor ( 11 . 11 '' ), the cylinder ( 12 ), wherein the cylinders via a charge leading to the same charge air duct compressed charge air can be fed, and wherein of the cylinders via an exhaust pipe leading away from the same exhaust gas is discharged, and with a charging device ( 13 . 13 ' . 13 '' ), which has at least one exhaust gas turbocharger, wherein in the or each exhaust gas turbocharger exhaust discharged exhaust gas and recoverable energy is used for compressing the cylinders to be supplied charge air, characterized in that the charging device ( 13 . 13 ' . 13 '' ) is composed of several modular modules, namely such that for a motor ( 11 ) in R-construction a charge air cooler housing ( 24 . 24 ' ), which defines a charge-side interface of the supercharger to the engine, and an engine-side exhaust manifold, which defines an exhaust-side interface of the supercharger to the engine, depending on whether the supercharger is on a clutch side ( 29 ) or a coupling counterpart ( 30 ) of the engine is connected to the same, whereas an air intake element ( 23 ), which defines a charge side interface of the charging device to the environment, and an ambient side exhaust manifold ( 22 ), which defines an exhaust-side interface of the charging device to the environment, regardless of whether the charging device on the coupling side ( 29 ) or the coupling opposite side ( 30 ) of the engine is connected to the same, and that for a motor ( 11 '' ) in V-construction, the intercooler housing ( 24 . 24 ' ), the exhaust manifolds on the engine side and the air intake elements ( 23 ) of the R-type engine, but a V-type, ambient exhaust manifold (US Pat. 22 '' ) is used. Internal combustion engine according to claim 7, characterized by features according to one or more of claims 2 to 6. Modular system for charging devices, wherein the charging devices are composed of several modular modules, namely such that for a motor ( 11 ) in R-construction a charge air cooler housing ( 24 . 24 ' ), which defines a charge-side interface of the supercharger to the engine, and an engine-side exhaust manifold, which defines an exhaust-side interface of the supercharger to the engine, depending on whether the supercharger is on a clutch side ( 29 ) or a coupling counterpart ( 30 ) of the engine is connected to the same, whereas an air intake element ( 23 ), which defines a charge side interface of the charging device to the environment, and an ambient side exhaust manifold ( 22 ), which defines an exhaust-side interface of the charging device to the environment, regardless of whether the charging device on the coupling side ( 29 ) or the coupling opposite side ( 30 ) of the engine is connected to the same; for a motor ( 11 '' ) in V-construction, the intercooler housing ( 24 . 24 ' ), the exhaust manifolds on the engine side and the air intake elements ( 23 ) of the R-type engine, but a V-type, ambient exhaust manifold (US Pat. 22 '' ) and a water tank adapted to the V-type construction ( 28 '' ) is used. Modular system according to claim 9, characterized by features according to one or more of claims 2 to 6.

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