DE102012101204A1 - Pressure wave supercharger arrangement for internal combustion engine has exhaust gas treatment component to treat exhaust gas whose flow direction is parallel or at preset angle with axis of rotation of cell rotor - Google Patents

Abstract

The pressure wave supercharger arrangement (1) has pressure wave supercharger (2) having several channels (K1-K4) for intake/discharge of fresh air and exhaust gas, and a cell rotor (9). An exhaust gas treatment component (5) is arranged between the internal combustion engine and pressure wave supercharger in the region of the channel (K3). The flow direction (S) of the exhaust gas in the exhaust gas treatment component and the axis of rotation (11) of the cell rotor are parallel or at an angle between 0-20[deg] to one another.

Description

The present invention relates to a pressure wave supercharger arrangement for an internal combustion engine according to the features in the preamble of claim 1.

In motor vehicles, internal combustion engines are used today as the main driving source. The internal combustion engines convert the chemical energy contained in a fuel through the combustion into mechanical transportation energy. However, heat loss also occurs during combustion, so that some of the chemical energy contained in the fuel is dissipated unused in the form of heat via the internal combustion engine or else via the exhaust gas. The internal combustion engine is inferior to the Carnot cycle, so that their theoretical maximum efficiency is to be set at about 40%.

From the state of the art, there are various approaches to continue to use the heat energy dissipated via the exhaust gas or via the engine block in the motor vehicle. For example, the heat energy is used by the Seebeck effect by means of thermal generators to generate additional electrical energy. It is also possible, for example, to extract heat energy from the exhaust gas via heat exchangers and to use this extracted heat to heat the cooling water for the vehicle interior heating during the cold start phase.

In order to achieve high efficiency in as many speed ranges with the internal combustion engine, charging methods are frequently used, wherein by means of a compressor, the fresh air used for combustion is compressed before the charge cycle. For example, this is done with a turbocharger, a compressor or even with a pressure wave charger.

In a pressure wave supercharger, the energy of the exhaust gas flow is used to compress the intake fresh air in a compression cell of a cell rotor, whereupon the compressed fresh air to the internal combustion engine and the exhaust gas are supplied after compression to the other exhaust tract. Both the exhaust gas and the intake fresh air are in direct gas contact. The pressure wave loader reacts very sensitively to external and internal influences, for example gas leakage due to excessively high gap dimensions or different, adjusting volumetric flows or thermodynamic states of the media flowing in it. In particular, when using exhaust aftertreatment components, for example in the form of catalysts, conflicting goals arise in the design and operation of an internal combustion engine with a pressure wave supercharger as a charging unit.

Object of the present invention is therefore to provide a pressure wave supercharger assembly for an internal combustion engine, which can be operated with inclusion of at least one exhaust aftertreatment component with a high efficiency.

The aforementioned object is achieved with a pressure wave supercharger according to the features in claim 1.

Advantageous embodiments of the present invention are part of the dependent claims.

The pressure wave supercharger arrangement according to the invention for an internal combustion engine, wherein the pressure wave supercharger has a channel 1 for sucking fresh air, a channel 2 for discharging the compressed fresh air, a channel 3 for supplying exhaust gas and a channel 4 for discharging exhaust gas and the pressure wave supercharger has a cell rotor, wherein between the internal combustion engine and the pressure wave supercharger an exhaust aftertreatment component in the region of the channel 3 is arranged according to the invention characterized in that the flow direction of the exhaust gas in the exhaust aftertreatment component and the axis of rotation of the cell rotor are parallel or the flow direction of the exhaust gas in the exhaust aftertreatment component and the axis of rotation of the Cell rotor at an angle between 0 ° and 20 ° to each other.

In the context of the invention, this means that the exhaust aftertreatment component has substantially a central longitudinal axis and the flow direction of the exhaust gas within the exhaust aftertreatment component runs parallel in the direction of this central longitudinal axis. The exhaust aftertreatment component and the axis of rotation of the cell rotor are thus to be regarded as essentially arranged on an axis. In the context of the invention, however, it is also possible that the flow direction of the exhaust gas, so the central longitudinal axis of the exhaust aftertreatment component and the axis of rotation of the cell rotor are at an angle to each other, wherein the angle preferably in a range between 0 ° and 20 ° or between 160 ° and 180 °, so that there is substantially a main flow direction that does not undergo any large flow deflection due to an angle change.

According to the invention, this results in the advantage that that of the Internal combustion engine accumulating exhaust gas due to the back pressure caused by the exhaust aftertreatment component and then flows through the exhaust aftertreatment unit. In the exhaust gas aftertreatment unit, which may be a catalyst, for example, the exhaust gas flow is then preferably homogenized or evenly distributed. This produces an exhaust gas flow which is distributed homogeneously over the cross section of the exhaust gas aftertreatment unit, ie with approximately the same flow density and approximately the same flow velocity. This homogeneous exhaust gas flow then in turn exits the exhaust aftertreatment component and enters the pressure wave supercharger via a substantially rectilinear pipeline, the channel 3.

In the pressure wave loader itself, the rotating cell rotor is arranged, which consists of many juxtaposed cells that rotate about the axis of rotation of the cell rotor. The homogeneous exhaust gas flow coming from the exhaust aftertreatment component then enters a respective cell of the cell rotor on a direct, essentially rectilinear flow path and is used there to compress the fresh air drawn in through the duct 1.

Due to the substantially straight-line entry of the exhaust gas aftertreatment component homogenized by the exhaust gas aftertreatment component, robust homogeneous flow characteristics are formed independently of the engine type, manifold and duct design. In addition, it is thereby possible to achieve a homogenously entering into the pressure wave supercharger exhaust gas flow at various operating points of both the internal combustion engine and corresponding thereto of the pressure wave supercharger. In this case, a stable flow characteristic field for the pressure wave supercharger is achieved by the direct arrangement in the flow direction behind the exhaust aftertreatment component. As further advantages, a significantly more compact design due to the low packaging and the direct arrangement with a short distance from exhaust aftertreatment components and pressure wave loader. Furthermore, the required for coupling the two components intermediate tubes are reduced.

Another significant advantage is the improved service life as a result of lower or more uniform thermal expansions due to the short and directly matched lengths and a higher gas tightness. In the context of the invention, it is thus also possible, for example by means of a heatable catalyst, to optimize the developing flow field, in particular in the cold start phase. Likewise, in the context of the invention, flow guidance elements can be used on the pressure wave supercharger or shortly before entry into the gas flow into the pressure wave supercharger in order thus to allow flow of the cell rotor at an angle of attack.

In the context of the invention, the pressure wave loader for connecting channel 3 and channel 4 has a hot gas side. The hot gas side is thus located on the side of the pressure wave supercharger, at which the exhaust gas coming from the internal combustion engine flows into the cell rotor and from this also flows out again into the further exhaust gas line. On the side of channel 1 and channel 2 is a cold gas side, the cold gas side is thus the side of the pressure wave supercharger from which the fresh air sucked into the cell rotor passes and the compressed fresh air is supplied from the cell rotor to the internal combustion engine.

In the context of the invention, the exhaust aftertreatment component may preferably be a catalyst. Particular preference is given to using a vehicle catalytic converter which serves for exhaust gas aftertreatment in vehicles with internal combustion engines. As a result, the pollutant emissions can be drastically reduced. In the interior of the motor vehicle catalyst is preferably a temperature-stable honeycomb body, which is coated accordingly, so that a catalytic exhaust aftertreatment takes place within the catalyst. In addition, various high-temperature wool, wire mesh or additional mats may be arranged in the catalyst. These elements generate a back pressure in the exhaust gas flow since they mean a flow resistance for the exhaust gas flow.

Within the catalyst, in particular within the honeycomb body, the exhaust gas flow is homogenized in such a way that a homogeneous flow field of the exhaust gas is formed both when passing through the catalyst and when exiting the catalyst. The homogeneous flow characteristic of the exhaust gas is characterized in that the exhaust gas density and the exhaust gas flow velocity is almost constant everywhere or in the expected ranges. For example, at the edge of the catalyst a lower flow velocity prevails than inside.

By arranging the main flow direction of the exhaust gas and the axis of rotation of the cell rotor approximately on a straight line or at only a slight angle to each other, so that results in a nearly straight flow direction, according to the invention operating the pressure wave supercharger with high efficiency is possible. Gas leaks, flow inhomogeneities or even stalls are thereby largely avoided.

For coupling between the exhaust aftertreatment component and the hot gas housing of the pressure wave supercharger is particularly preferably the exhaust aftertreatment component in the flow direction of the exhaust gas upstream of the pressure wave supercharger, in particular under inclusion of a pipe socket, wherein the pipe socket has a substantially rectilinear flow channel. The pressure wave loader itself is thus preceded by a pipe socket in the region of the channel 3, which connects the exhaust aftertreatment component and the pressure wave supercharger in the region of the channel 3 with each other. The pipe socket itself has a flow channel, ie an inner wall which has a substantially rectilinear course. The pipe socket itself has dimensions of possibly only a few millimeters, up to a maximum of about 5 cm, in particular 10 cm, very particularly preferably 15 cm and preferably 20 cm.

The present object is further provided with a pressure wave supercharger assembly for an internal combustion engine, the pressure wave supercharger having a channel 1 for sucking fresh air, a channel 2 for discharging the compressed fresh air, a channel 3 for supplying exhaust gas and a channel 4 for discharging exhaust gas and Pressure wave supercharger having a cell rotor, wherein between the internal combustion engine and the pressure wave supercharger an exhaust aftertreatment component in the region of the channel 3 is arranged, in particular according to one of the preceding features, achieved in that between the exhaust aftertreatment component and the pressure wave supercharger, a hot gas distributor is arranged, wherein the hot gas distributor has three flanges wherein the flanges are formed as Druckwellenladerflansch, as a catalyst flange and as an exhaust flange.

The hot gas distributor is characterized in that it provides the connections for the channel 3 and the channel 4 in a compact space. Thus, a coupling of the hot gas distributor takes place via the pressure wave supercharger flange to the hot gas side of the pressure wave supercharger and via the catalyst flange to the exhaust gas aftertreatment component, in particular to a catalyst. Through the connection between Druckwellenladerflansch and catalyst flange of the channel 3 of the pressure wave supercharger is formed. Furthermore, the hot gas distributor comprises an exhaust flange, wherein the connection between the Druckwellenladerflansch and the exhaust flange forms the channel 4 of the hot gas manifold.

Preferably, the channel 3, so the pipe portion between the catalyst flange and the Druckwellenladerflansch formed as a trouser pipe. The bifurcated tube, also referred to as Y-tube, thus absorbs the exhaust gas flow in the area of the catalyst flange in a single flow and divides it into a bifurcated exhaust gas flow so that it enters the hot gas side of the pressure wave loader through the two barb arms in the area of the pressure wave loader flange. As a result, it is preferably possible to supply a pressure wave charger with a double-flow exhaust gas flow, so that the pressure wave loader performs two compression strokes per revolution. A compression stroke is thus executed at 180 ° rotation and a second compression stroke at a further 180 ° rotation.

Another possibility consists in the division of the channel 3 into a channel 3 and a channel 3 ', so that via the channel 3' optionally more exhaust gas flow into the pressure wave supercharger for compacting can be introduced. Alternatively, via the channel 3 'by a bypass of the exhaust stream bypass the pressure wave supercharger so that the exhaust gas from the channel 3' is passed directly into the channel 4.

Further preferably, extends between the Druckwellenladerflansch and the exhaust flange, an exhaust pipe forming the channel 4, preferably, the exhaust pipe at an angle between 80 ° and 100 °, in particular an angle of substantially 90 °. Thus, it is possible that after the compression from the pressure wave supercharger effluent exhaust gas via the channel 4, that is to supply via the exhaust pipe to the further exhaust gas line.

Due to the arrangement of the pressure wave supercharger, in particular with a rectilinear inflow axis of the exhaust gas used for compression, it is thus possible to discharge the exhaust laterally from the pressure wave supercharger via the angled exhaust pipe, so there is no conflict of objectives between supply line, ie channel 3 and discharge line, ie channel 4, results. For this purpose, the exhaust pipe is arranged in particular between the arms of the pants tube. Thus, the hosepipe engages between its two pants arms or legs of the exhaust pipe, the exhaust pipe then projects laterally from the nozzle.

In the context of the invention, the pressure wave loader is constructed in particular mirror-symmetrical, so that two channels 3 and two channels 4 are present, so that at 180 ° rotation of the cell rotor each start a charging and take place at 360 ° rotation two charging operations. Each of the two channels 3 thus floods the respective corresponding cells twice at 360 ° rotation of the cell rotor. For this purpose, in particular two trouser pipes are arranged mirror-symmetrically in the hot gas distributor, wherein one arm of a trouser pipe then forms a respective channel 3 and the other arm a channel 3 '. The two trouser pipes can also be combined to a combination pants tube, so that a single-entry into the Combination pants tube at the catalyst flange results and then divided into four floods, so four pants tube arms. The four trouser tubes then preferably surround the exhaust pipe.

Furthermore, a control element is preferably arranged in the channel 3 ', wherein the control element is in particular a control roller and the one control roller simultaneously controls both channels 3'. The control roller is thus formed in one piece or in several parts, but continuously, so that they both channels 3 'detected and the channels 3' can then be controlled by the control roller. By turning the control roller, it is possible to flow more or less exhaust gas into the respective cells of the cell rotor, the channel 3 'completely or partially to block or the exhaust gas wholly or partially from channel 3' via a bypass line within the control roller directly into to flow the channel 4, bypassing the pressure wave supercharger.

Further preferably, the control roller is arranged in a control roller tube within the hot gas distributor, wherein a bypass tube extends between the control roller tube and the exhaust flange. The bypass pipe is then used for direct transfer of the exhaust gas from the channel 3 'in the channel 4 or directly into the exhaust system. The control roller tube itself is then preferably designed such that it is arranged both in the first channel 3 'and in the second channel 3' and both channels can be controlled simultaneously via the one central control roller.

Furthermore, the hot gas distributor preferably has two exhaust pipes, wherein the two exhaust pipes each have an angle between 80 ° and 100 ° and are arranged between the two pipes. In particular, however, the two exhaust pipes are always arranged in a combination pants tube between two arms of the pants tube. Further preferably, the exhaust pipes surround the control roller tube. This makes it possible to design the hot gas distributor in the smallest space with negligible influence of the flow of the exhaust gas, so that the pressure wave supercharger with optimized exhaust system on the hot gas side and exhaust aftertreatment option can be arranged by placing the exhaust aftertreatment within an engine compartment as engine peripheral component on an internal combustion engine. The thermal effects are also brought to a subcritical level, so that there is an operation of the pressure wave supercharger with high efficiency.

Within the scope of the invention, the abovementioned features can be combined as desired with one another with the attendant advantages, without departing from the scope of the invention.

Further advantages, features, characteristics and aspects of the present invention are part of the following description. Preferred embodiments are shown in the schematic figures. These are for easy understanding of the invention. Show it:

1a an inventive pressure wave supercharger arrangement with rectilinear and b arrangement of exhaust aftertreatment component and axis of rotation of the cell rotor;

2 a pressure wave charger arrangement according to the invention with hot gas distributor and nozzle;

3 a sectional perspective view of a pressure wave supercharger arrangement according to the invention and

4 a hot gas distributor according to the invention in various per- 6 spektivansichten.

In the figures, the same reference numerals are used for the same or similar components for reasons of simplification, even if a repeated description is omitted.

1a shows a pressure wave charger arrangement according to the invention 1 , wherein a pressure wave loader 2 is arranged on an internal combustion engine not shown here. From the internal combustion engine, exhaust gas A flows into a manifold 3 and from there into an exhaust system 4 , To the exhaust system 4 is an exhaust aftertreatment component 5 connected to the then in the flow direction of the pressure wave loader 2 follows. In the entrance area 6 the exhaust aftertreatment component 5 it dams up through the exhaust system 4 flowing exhaust gas due to the arrangement of space, not shown within the exhaust aftertreatment component 5 , Within the exhaust aftertreatment component 5 a homogeneous exhaust gas flow takes place 7 , which is exemplary with a flow direction S in the form of a central longitudinal axis 8th within the exhaust aftertreatment component 5 is shown.

The pressure wave loader 2 itself has a cell rotor 9 with different cells 10 on. The cell rotor 9 rotates over a rotation axis 11 where the rotation axis 11 in the embodiment shown here straight on an axis with the central longitudinal axis 8th the exhaust aftertreatment component 5 is arranged and thus the flow direction S of the homogeneous exhaust gas flow 7 within the exhaust aftertreatment component 5 parallel to the axis of rotation 11 of the cell rotor 9 runs. In the context of the invention, however, it is also possible, as in 1b illustrated that the flow direction S of the homogeneous exhaust gas flow 7 and the rotation axis 11 intersect at an angle α between 0 ° and 20 °, so that, however, a substantially rectilinear course without significant flow direction change in the transition of the exhaust gas flow from the exhaust aftertreatment component 5 in the pressure wave loader 2 results.

For coupling between the pressure wave loader 2 and the exhaust aftertreatment component 5 on the hot gas side 12 the pressure wave loader 2 is between the exhaust aftertreatment component 5 and the cell rotor 9 a pipe socket 13 arranged, with the pipe socket 13 is designed as a riser and two Hosenrohrarme 14 having. The pipe socket may be formed in the context of the invention as a sheet metal component, Gußbauteil or welding component. Between the pants tube arms 14 is an exhaust pipe 15 arranged that the channel 4 K4 forms and that from the cells 10 flowing exhaust gas another, not shown exhaust system 4 supplies. Also shown are the channel 1 K1 and the channel 2 K2 on a cold gas side 16 the pressure wave loader 2 ,

2 shows an analog construction of a pressure wave supercharger arrangement 1 to 1 , with the difference that the exhaust aftertreatment component 5 essentially at a right angle to the axis of rotation 11 the pressure wave loader 2 is arranged. For direct arrangement of the exhaust aftertreatment component 5 to the pressure wave loader 2 is also a hot gas manifold 17 designed so that a compact space between the exhaust aftertreatment component 5 and the pressure wave charger 2 results. The hot gas distributor 17 has a downpipe 20 on, so that of the exhaust aftertreatment component 5 incoming exhaust gas flow into two channels 3 K3 or into a channel 3 K3 and a channel 3 'K3' divides. Here is a particularly homogeneous flow of cells 10 the pressure wave loader 2 possible.

3 shows the pressure wave charger arrangement 1 according to 1 in a perspective sectional view. The internal combustion engine is shown in the form of a cylinder Z, in which a charge exchange process takes place. The compressed fresh air coming from the channel 2 K2 from the channel 1 K1 is burned in the cylinder Z and in the form of exhaust gas via the exhaust gas line 4 the exhaust aftertreatment component 5 fed. In the exhaust aftertreatment component 5 the exhaust gas flow experiences a homogenization, so that a homogeneous exhaust gas flow 7 from the exhaust aftertreatment component 5 in the cell rotor 9 entry. Upon entry into the cell rotor 9 takes place through the channel 3 K3, for better clarity, the channel 3 K3 here as a combination pants tube 18 is shown, wherein the combination pants tube 18 has a central entrance and four Hosenrohrarme 14 , The pants tube arms 14 are each formed as a channel 3 K3 and channel 3 'K3', so that a mirror-symmetrical structure of the combination pants tube 18 results. For exhaust gas removal is in the channel 4 K4 also a bifurcation 20 arranged, with the bifurcated pipe 20 this is what the pressure wave loader does 2 exiting exhaust gas a not shown exhaust system 4 supply. The two pants tube arms 14 are doing in an interior I of the combination pants tube 21 arranged.

The 4 to 6 show the hot gas distributor according to the invention 17 in different perspective views.

Shown at the hot gas distributor 17 is in each case the exhaust flange 22 , the pressure wave wheel flange 23 and the catalyst flange 24 , To the exhaust flange 22 is coupled here not shown exhaust system, which then the exhaust gas from the exhaust pipe 15 dissipates. From the catalyst flange 24 to the pressure wave supercharger flange 23 two pants pipes extend 25 , which are constructed mirror-symmetrically. A Hosenrohrarm forms the channel 3 K3, whereas the second Hosenrohrarm the channel 3 'K3' forms.

In the channel 3 'K3' is one over the entire width of the hot gas distributor 17 an extending control roller tube 26 arranged in the control roller tube 26 a control roller not shown here is inserted. Via the control roller, it is then possible to regulate the gas flow of the exhaust gas through the channel 3 'K3'. The control roller tube 26 is further from the two exhaust pipes 15 surrounded and is thus centrally located in the center of the hot gas distributor 17 arranged. In the control roller tube 26 are arranged different openings Ö, which allow a passage of the exhaust gas flow through the channel 3 'K3' or a partial or complete closure of the channel 3 'K3' or a diversion of the through the Hosenrohrarm 14 the channel 3 'K3' incoming exhaust gas flow directly into the channel 4 K4, wherein the control roller tube 26 a bypass tube 27 connected to that from the control roller tube 26 to the exhaust flange 22 extends.

LIST OF REFERENCE NUMBERS

1

Pressure wave supercharger arrangement

2

Pressure wave supercharger

3

elbow

4

exhaust gas line

5

exhaust aftertreatment component

6

Entry area too 5

7

homogeneous exhaust gas flow

8th

Center longitudinal axis too 5

9

cell rotor

10

cell

11

axis of rotation

12

Hot gas side

13

pipe socket

14

Y-pipe arms

15

exhaust pipe

16

Cold-gas side

17

Hot gas distributor

18

Combination Y-pipe

19

Entrance to 18

20

Downpipe to K4

21

Pants tube arm too 20

22

exhaust flange

23

Druckwellenladerflansch

24

catalyst flange

25

Downpipe to K3 or K3 '

26

Tax roll tube

27

bypass pipe

K1

Channel 1

K2

Channel 2

K3

Channel 3

K3 '

Channel 3 '

K4

Channel 4

Z

cylinder

I

Interior too 18

Ö

openings

α

angle

Claims (13)

Pressure wave charger arrangement ( 1 ) for an internal combustion engine, wherein the pressure wave supercharger ( 2 ) has a channel 1 (K1) for the intake of fresh air, a channel 2 (K2) for discharging the compressed fresh air, a channel 3 (K3) for supplying exhaust gas and a channel 4 (K4) for discharging exhaust gas and the pressure wave supercharger ( 2 ) a cell rotor ( 9 ), wherein between the internal combustion engine and the pressure wave loader ( 2 ) an exhaust aftertreatment component ( 5 ) in the region of the channel 3 (K3), characterized in that the flow direction (S) of the exhaust gas in the exhaust aftertreatment component ( 5 ) and the axis of rotation ( 11 ) of the cell rotor ( 9 ) run parallel or at an angle between 0 and 20 degrees to each other. Pressure wave charger arrangement according to claim 1, characterized in that the exhaust aftertreatment component ( 5 ) is a catalyst. Pressure wave charger arrangement according to claim 1 or 2, characterized in that the exhaust aftertreatment component ( 5 ) in the flow direction (S) of the exhaust gas the pressure wave supercharger ( 2 ) is connected directly upstream, preferably with the inclusion of a pipe socket ( 13 ), wherein the pipe socket ( 13 ) has a substantially rectilinear flow channel. Pressure wave supercharger arrangement for an internal combustion engine, wherein the pressure wave supercharger ( 2 ) has a channel 1 (K1) for the intake of fresh air, a channel 2 (K2) for discharging the compressed fresh air, a channel 3 (K3) for supplying exhaust gas and a channel 4 (K4) for discharging exhaust gas and the pressure wave supercharger ( 2 ) a cell rotor ( 9 ), wherein between the internal combustion engine and the pressure wave loader ( 2 ) an exhaust aftertreatment component ( 5 ) in the region of the channel 3 (K3) is arranged, in particular according to claim 1, characterized in that between the exhaust aftertreatment component ( 5 ) and the pressure wave loader ( 2 ) a hot gas distributor ( 17 ), wherein the hot gas distributor ( 17 ) three flanges ( 22 . 23 . 24 ), wherein the flanges as Druckwellenladerflansch ( 23 ), as catalyst flange ( 24 ), and as exhaust flange ( 22 ) are formed. Pressure wave charger arrangement according to claim 4, characterized in that between the catalyst flange ( 24 ) and the Druckwellenladerflansch ( 23 ) the channel 3 (K3) is formed, extending from the catalyst flange ( 24 ) to the pressure wave supercharger flange ( 23 ) preferably a downpipe ( 20 ). Pressure wave charger arrangement according to claim 4 or 5, characterized in that between the Druckwellenladerflansch ( 23 ) and the exhaust flange ( 22 ) an exhaust pipe ( 15 ), which forms the channel 4 (K4), preferably, the exhaust pipe ( 15 ) at an angle between 80 and 100 degrees, in particular substantially 90 degrees. Pressure wave charger arrangement according to claim 6, characterized in that the exhaust pipe ( 15 ) between the arms of the riser ( 20 ) is arranged. Pressure wave charger arrangement according to one of claims 1 to 7, characterized in that the pressure wave loader ( 2 ) is mirror-symmetrical and has two channels 3 (K3, K3 ') and two channels 4 (K4), so that at 180 degrees rotation of the cell rotor ( 9 ) each a charging process begins and take place at 360 degrees rotation two charging processes. Pressure wave charger arrangement according to claim 8, characterized in that two trouser pipes ( 20 ) in the hot gas distributor ( 17 ) are arranged mirror-symmetrically, with one arm of the sheath ( 20 ) forms the channel 3 (K3) and the other arm a channel 3 '(K3'). Pressure wave charger arrangement according to claim 9, characterized in that in the channel 3 '(K3'), a control element is arranged, wherein the control element is preferably a control roller and a control roller both channels 3 '(K3') simultaneously controls. Pressure wave charger arrangement according to claim 10, characterized in that the control roller in a control roller tube ( 26 ) and between the control roller tube ( 26 ) and the exhaust flange ( 22 ) a bypass tube ( 27 ). Pressure wave charger arrangement according to one of claims 4 to 11, characterized in that the hot gas distributor ( 17 ) via two exhaust pipes ( 15 ), wherein the two exhaust pipes ( 15 ) each at an angle between 80 and 100 degrees and between the two shafts ( 25 ) are arranged. Pressure wave charger arrangement according to claim 12, characterized in that the exhaust pipes ( 15 ) the control roller tube ( 26 ) embrace.

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