EP3209883B1 - Suction muffler for a hermetically encapsulated refrigerant compressor - Google Patents

Description

FIELD OF THE INVENTION

The present invention relates to a suction muffler for a hermetic refrigerant compressor, the suction muffler comprising an inlet for flowing refrigerant into the suction muffler, and an outlet for allowing refrigerant to flow out of the muffler, the suction muffler further comprising two muffling chambers for muffling wherein the two damping chambers each have a bottom and wherein a wall member is provided to separate the two damping chambers in the region of their bottoms for the refrigerant from each other.

STATE OF THE ART

Hermetically sealed refrigerant compressors have long been known and are mainly used in refrigerators or shelves. The refrigerant process as such has also been known for a long time. Refrigerant is heated by energy intake from the room to be cooled in an evaporator and finally superheated and pumped by the refrigerant compressor with a piston-cylinder unit to a higher pressure level, where it emits heat through a condenser and a throttle, in the one Pressure reduction and the cooling of the refrigerant takes place, is transported back into the evaporator.

An aspiration of the (gaseous) refrigerant takes place via a suction pipe coming directly from the evaporator during an intake stroke of the piston-cylinder unit. The suction pipe opens in known hermetically sealed refrigerant compressors usually in the hermetically sealed compressor housing - usually in the vicinity of an inlet of a suction muffler (also known as Muffler), from where the refrigerant in the suction muffler and through this to a suction valve of the piston-cylinder Unit flows. The suction muffler serves primarily to keep the noise level of the refrigerant compressor during the intake as low as possible. Known suction muffler usually consist of several volumes or damping chambers, which communicate with each other. These dampen the sound based on the well-known Helmholtz principle, i. the damping chambers act as resonators that absorb sound. In addition, known suction muffler on an input through which the refrigerant is sucked into the interior of the suction muffler, and an output which rests close to the intake valve of the piston-cylinder unit.

In addition to the refrigerant inevitably passes oil in the suction muffler, which is needed for lubrication of the piston-cylinder unit. The oil collects at the bottom of the damping chambers. In order to remove the oil from the suction muffler or the damping chambers again, usually in each damping chamber, at least one oil drain hole is provided, through which the oil can flow into the compressor housing.

However, such oil drain holes are problematic in two respects. For one thing about these oil drain holes Gas exchange with the compressor housing done. That is, hot gaseous refrigerant, which is located in the compressor housing, can pass in this way in the suction muffler and subsequently in the piston-cylinder unit, which reduces the efficiency of the refrigerant compressor. On the other hand can escape through the oil drain holes sound, which has a negative effect on the achievable with the suction muffler soundproofing.

From the WO 86/02703 A1 a suction muffler with damping chambers is known, which separator for liquid portions of the sucked fluid, the gaseous refrigerant, liquid portions of the refrigerant and also comprises amounts of oil. The separators are formed only by suitably inclined bottoms of the damping chambers. So that liquid can collect in the separators due to gravity, connecting passages are provided between the damping chambers. The fluid is sucked through the labyrinthine structure of the suction muffler, in particular also through the connecting passages, which ultimately leads to the separation of the liquid portions of the fluid. A disadvantage of this solution is that sound can escape from the individual damping chambers via the connecting passages, which has a negative effect on the sound and / or noise development. The liquid level in the separators can not be so high in practice that it comes to a closure of the connecting passages. On the one hand, so much liquid is actually absent. On the other hand, such a closure of the connecting passages would have fatal effects on the noise or noise, since the sucked fluid is still through the connecting passages would be sucked and thereby cause a strong bubbling.

Furthermore, the shows DE 10323526 B3 a generic suction muffler with two chambers, which are separated by a wall.

OBJECT OF THE INVENTION

It is therefore an object of the present invention to provide a suction muffler for a hermetically sealed refrigerant compressor, which avoids the disadvantages mentioned above. In particular, it should be ensured that the damping chambers of the suction muffler relative to the compressor housing are as gas-tight and soundproof.

PRESENTATION OF THE INVENTION

The essence of the present invention is to provide a connection between the damping chambers only for oil, said compound is tight in particular for the gaseous refrigerant. In this way, it is possible that oil can flow from one damping chamber into another damping chamber, without this connection can lead to an exchange of gaseous refrigerant. This also ensures that no sound can escape from the damping chambers from this connection. Thus, only in one of the damping chambers, a means for discharging the accumulated oil, such as an oil drain hole or a valve, must be provided, whereby the sound and gas tightness of the damping chambers is maximized overall.

Accordingly, it is in a suction muffler for a hermetic refrigerant compressor, the suction muffler comprising an inlet to flow refrigerant into the suction muffler, and an outlet to allow refrigerant to flow out of the suction muffler, the suction muffler further comprising two damping chambers for soundproofing , wherein the two damping chambers each have a bottom and wherein a Wall element is provided to separate the two damping chambers in the region of their bottoms for the refrigerant, according to the invention provided that in the region of the wall member at least one siphon portion connecting the two floors is arranged to receive oil in an operating position of the suction muffler, said at least one Siphon section connects the two damping chambers siphon-like with each other for the oil.

The oil can accumulate at the respective bottom, which is preferably designed so that the oil flows in the operating position of the suction muffler in the direction Siphonabschnitt. In order to optimize the collection of the oil and in particular the supply of the oil to the siphon, it is provided in a preferred embodiment of the suction muffler according to the invention that in at least one of the two floors a channel is arranged to receive in the operating position of the suction muffler oil, said Channel is connected to the at least one siphon section. Preferably, the channel is designed so that the oil flows in the operating position of the suction muffler to Siphonabschnitt.

In order to enable a simple production of the channel and of the siphon section, it is provided in a preferred embodiment of the suction muffler according to the invention that the at least one siphon section is formed as a recess in the two floors and that preferably the channel as a further recess in the at least one of two bottoms is formed, wherein the further recess is at least partially less deep than the depression. Preferably, the depression of the siphon section together with the wall element results in a substantially U-shaped or V-shaped cross-section, whereby the effect of a siphon is achieved, if the siphon section is filled with oil so far that the wall element dips into the oil or touches the oil.

Of course, more than two damping chambers can be connected according to the invention for oil. Accordingly, it is provided in a preferred embodiment of the suction muffler according to the invention that at least one further damping chamber is provided that the at least one further damping chamber has a bottom that at least one further wall element is provided to the at least one further damping chamber of at least one of the other damping chambers in the region of the respective bottoms for the refrigerant to be separated, at least one further siphon section connecting the respective bottoms being arranged in the region of the at least one further wall element to receive oil in an operating position of the suction silencer, and wherein the at least one further siphon section forms the at least one further Damping chamber with at least one of the other damping chambers siphon-like connects for the oil.

The oil can collect at the bottom of the at least one further damping chamber, which is preferably designed so that the oil flows in the operating position of the suction muffler in the direction of the at least one further siphon section. In order to optimize the collection of the oil and in particular the supply of the oil to the at least one further siphon section, the channel can be expanded to the at least one further damping chamber. It is therefore provided in a preferred embodiment of the suction muffler according to the invention, that the channel is also arranged in the bottom of the at least one further damping chamber to receive oil in the operating position of the suction muffler, wherein the channel is connected to the at least one further Siphonabschnitt. Preferably, the channel is designed so that the oil in the operating position of the Suction muffler flows to at least one other Siphonabschnitt.

In order to be able to finally drain the oil from the suction muffler, it is provided in a preferred embodiment of the suction muffler according to the invention, that in the bottom of a damping chamber, an oil drain hole is arranged. In a particularly preferred embodiment of the suction muffler according to the invention, it is provided that exactly one oil drain hole is provided, whereby the sound and gas tightness of the damping chambers is at least in total maximized.

In order to be able to selectively supply the oil to the oil drain hole, it is provided in a preferred embodiment of the suction muffler according to the invention that the channel is connected to the oil drain hole. Preferably, the channel is designed so that the oil flows in the operating position of the suction muffler to the oil drain hole.

It is understood that the bottoms of the first and second damping chamber can be integrally formed. Of course, the one-piece construction may include the siphon section. Furthermore, the one-piece design of the floors can also comprise the bottom of the at least one further damping chamber. Finally, the one-piece design can also comprise the at least one further siphon section. It is therefore provided in a preferred embodiment of the suction muffler according to the invention that the bottoms and the at least one siphon portion and preferably the at least one further siphon portion are integrally formed.

It is understood that the channel may also be included in the one-piece design.

Due to the high gas-tightness can be achieved with the help of the suction muffler according to the invention, a refrigerant compressor with high efficiency. At the same time, the noise level of such a refrigerant compressor falls extremely low due to the good soundproofness of the suction muffler according to the invention. Therefore, according to the invention, a hermetically sealed refrigerant compressor is provided, which has a hermetically sealed compressor housing, in the interior of which a refrigerant-compressing piston-cylinder unit operates with an intake valve arranged in a valve plate of the same intake valve, wherein on a cylinder head of the piston-cylinder Unit a suction muffler according to the invention is arranged to allow the refrigerant flow through the suction muffler to the intake valve.

BRIEF DESCRIPTION OF THE FIGURES

The invention will now be explained in more detail with reference to exemplary embodiments. The drawings are exemplary and are intended to illustrate the inventive idea, but in no way restrict it or even reproduce it.

Fig. 1

eine Frontansicht eines erfindungsgemäßen Saugschalldämpfers

Fig. 2

eine Schnittansicht des Saugschalldämpfers aus Fig. 1 gemäß der in Fig. 1 eingezeichneten Schnittlinie E-E

Fig. 3

eine Schnittansicht des Saugschalldämpfers aus Fig. 1 gemäß der in Fig. 2 eingezeichneten Schnittlinie A-A, wobei sich angesammeltes Öl dargestellt ist

Fig. 4

eine vergrößerte Darstellung des Details B aus Fig. 3

Fig. 5

eine Schnittansicht des Saugschalldämpfers aus Fig. 1 gemäß der in Fig. 2 eingezeichneten Schnittlinie C-C, wobei sich angesammeltes Öl dargestellt ist

Fig. 6

eine vergrößerte Darstellung des Details D aus Fig. 5

Fig. 7

eine Frontansicht eines teilweise aufgeschnittenen, hermetisch gekapselten Kältemittelverdichters mit dem Saugschalldämpfer aus Fig. 1

Fig. 8

eine axonometrische Ansicht einer alternativen Ausführungsform des erfindungsgemäßen Saugschalldämpfers mit einem Kanal

Fig. 9

eine Ansicht analog zu Fig. 2 einer weiteren alternativen Ausführungsform des erfindungsgemäßen Saugschalldämpfers mit mehreren Siphonabschnitten

Fig. 10

eine Ansicht analog zu Fig. 2 einer weiteren alternativen Ausführungsform des erfindungsgemäßen Saugschalldämpfers mit einem sich im Wesentlichen über eine gesamte Breite von Böden von Dämpfungskammern des Saugschalldämpfers erstreckenden Siphonabschnitt

Fig. 11

eine schematische Schnittansicht analog zu Fig. 4 mit einer vergrößerten Darstellung eines Siphonabschnitts mit einer alternativen Querschnittsform

Fig. 12

eine schematische Schnittansicht analog zu Fig. 4 mit einer vergrößerten Darstellung eines Siphonabschnitts, wobei eine Dichtlippe vorgesehen ist

Showing:

Fig. 1

a front view of a suction muffler according to the invention

Fig. 2

a sectional view of the suction muffler Fig. 1 according to the in Fig. 1 drawn section line EE

Fig. 3

a sectional view of the suction muffler Fig. 1 according to the in Fig. 2 drawn section line AA, with accumulated oil is shown

Fig. 4

an enlarged view of the detail B from Fig. 3

Fig. 5

a sectional view of the suction muffler Fig. 1 according to the in Fig. 2 drawn section line CC, where accumulated oil is shown

Fig. 6

an enlarged view of the detail D from Fig. 5

Fig. 7

a front view of a partially cut, hermetically sealed refrigerant compressor with the suction muffler Fig. 1

Fig. 8

an axonometric view of an alternative embodiment of the suction muffler according to the invention with a channel

Fig. 9

a view analogous to Fig. 2 a further alternative embodiment of the suction muffler according to the invention with multiple Siphonabschnitten

Fig. 10

a view analogous to Fig. 2 a further alternative embodiment of the suction muffler according to the invention with a substantially over an entire width of bottoms of damping chambers of the suction muffler extending siphon section

Fig. 11

a schematic sectional view analogous to Fig. 4 with an enlarged view of a Siphonabschnitts with an alternative cross-sectional shape

Fig. 12

a schematic sectional view analogous to Fig. 4 with an enlarged view of a Siphonabschnitts, wherein a sealing lip is provided

WAYS FOR CARRYING OUT THE INVENTION

Fig. 1 shows a suction muffler 1 according to the invention for a hermetically sealed refrigerant compressor 2 (see. Fig. 7 ) in a front view. The suction muffler 1 has an inlet 3, through which refrigerant, which is sucked in the refrigerant compressor 2 in a gaseous state, can flow into the suction muffler 1, and an outlet 4, through which the refrigerant can flow out of the suction muffler 1.

The suction muffler 1 is in Fig. 1 insofar shown in an operating position, as in this, the vertical orientation of the suction muffler 1 is such that the cutting line EE corresponds to a section through the lower region of the suction muffler 1 located in the operating position.

Fig. 2 shows a sectional view, which is in accordance with the section line EE Fig. 1 results, with the arrow in Fig. 1 indicates the viewing direction. It can be seen that the suction muffler 1 has a first damping chamber 5 with a bottom 8, a second damping chamber 6 with a bottom 9 and a third damping chamber 7 with a bottom 10. The bottoms 8, 9, 10 are made in one piece in the embodiment shown. Between the first damping chamber 5 and the second damping chamber 6, a wall element 11 is arranged, which separates the two damping chambers 5, 6 in the region of their bottoms 8, 9 for the refrigerant. That is, the wall element 11 prevents that in the region of the bottoms 8, 9 refrigerant can pass from the first damping chamber 5 in the second damping chamber 6 and vice versa.

Similarly, between the second damping chamber 6 and the third damping chamber 7, a further wall element 12 is arranged, which separates the two damping chambers 6, 7 in the region of their bottoms 9, 10 for the refrigerant. This means that the further wall element 12 prevents that in the region of the bottoms 9, 10 refrigerant can pass from the second damping chamber 6 into the third damping chamber 7 and vice versa.

Of course, this does not mean that no exchange of refrigerant between the damping chambers 5, 6, 7 can take place. However, this takes place via specially provided openings and / or free channels (not shown).

Oil 14, which enters the suction muffler 1, collects due to gravity basically on the floors 8, 9, 10, when the suction muffler 1 is in the operating position. In the refrigerant compressor 2, the oil 14 is principally required for lubricating a refrigerant-compressing piston-cylinder unit 19. In the operation of the refrigerant compressor 2, it is generally hardly possible or practically impossible to completely prevent the entry of oil 14 into the suction muffler 1.

In order to enable a transition for the oil 14 between the damping chambers 5, 6, a siphon section 16 is arranged in the bottoms 8, 9 in the region of the wall element 11 between the first damping chamber 5 and the second damping chamber 6. The siphon section 16 is formed as a recess in the floors 8, 9. In this way, a siphon-like connection between the damping chambers 5, 6 is generated for the oil 14.

That the siphon section 16 ensures that oil 14 can pass from the first damping chamber 5 into the second damping chamber 6 (and in principle also vice versa). In this case, the oil 14 forms a gas-tight seal in the siphon section 16 and thus prevents in particular a transfer of gaseous refrigerant between the damping chambers 5, 6 through the siphon section 16. This also prevents sound from passing through the siphon section 16 between the damping chambers 5, 6 ,

Likewise, between the second damping chamber 6 and the third damping chamber 7 in the region of the further wall element 12, a further siphon section 17 in the bottoms 9, 10 arranged, which is also connected to the channel 13. The further siphon section 17 is likewise formed as a depression in the bottoms 9, 10. In this way, a siphon-like connection between the damping chambers 6, 7 is generated for the oil 14.

That the further siphon section 17 ensures that oil 14 can pass from the second damping chamber 6 into the third damping chamber 7 (and in principle also vice versa). In this case, the oil 14 in the further siphon section 17 forms a gas-tight seal and thus prevents, in particular, a transfer of gaseous refrigerant between the damping chambers 6, 7 through the further siphon section 17. This also prevents sound from passing through the further siphon section 17 between the damping chambers 6, 7 can pass.

By the above, specifically for the exchange of refrigerant between the damping chambers 5, 6, 7 provided openings and / or free channels (not shown) can be effectively prevented that refrigerant through the siphon 16 and the other Siphonabschnitt 17 is sucked and caused a disturbing bubbling.

Fig. 3 illustrates the operation of the siphon sections 16, 17 with reference to a sectional view along the section line AA Fig. 2 , where the arrows in Fig. 2 indicate the line of sight. By the siphon section 16 and the further siphon section 17 are filled with oil 14, these are between the damping chambers 5.6 on the one hand and the damping chambers 6, 7 on the other hand gastight - and thus substantially soundproof - closed.

The tight completion is by Fig. 5 illustrates that a section through the further wall element 12 according to the section line CC Fig. 2 shows, with the arrows in Fig. 2 indicate the line of sight.

The detail D off Fig. 5 is in Fig. 6 shown enlarged. The further siphon channel 17 is completely filled with oil 14. Together with the further wall element 12, it thus completely separates the two damping chambers 6, 7 in the region of their bottoms 9, 10 for the gaseous refrigerant.

So that the oil 14 can flow out of the suction muffler 1, only a single oil drain hole 15 in the bottom 10 of the third damping chamber 7 is provided so that the overall maximum gas and soundproofness of the damping chambers 5, 6, 7 results. This oil drain hole 15 is in Fig. 4 which made an enlarged view of the detail B Fig. 3 shows, especially recognizable. The bottoms 8, 9, 10 are covered with oil 14, so that an oil level t ₁ results over the bottom 10. In the further siphon section 17 designed as a depression, a larger oil level t ₂ results correspondingly.

Furthermore is in Fig. 4 it can be seen that the further wall element 12 projects slightly into the further siphon section 17. The further siphon section 17 thus forms, together with the further wall element 12, an essentially U-shaped or V-shaped arrangement in cross-section. The same applies in the in Fig. 4 also shown for the siphon 16 together with the wall element 11.

For a gas-tight closure of the further siphon section 17, it is therefore sufficient if the oil 14 just fills the further siphon section 17 or if the oil level t _{2 is} just so great until the further wall element 12 is just immersed in the oil 14 or the oil 14th touched. That is, it is not necessary for the gastightness that the bottoms 9, 10 are covered with oil 14 or that the oil level t _{1 is} greater than zero.

Due to the connection for the oil 14 between the damping chambers 5, 6, 7 realized by means of the siphon sections 16, 17, it is ensured that the oil 14 can ultimately flow out of each damping chamber 5, 6, 7. Preferably, the Siphon sections 16, 17 and the floors 8, 9, 10 designed so that the oil 14 is passed to the oil drain hole 15.

An example of the use of the suction muffler 1 in the refrigerant compressor 2 is shown in FIG Fig. 7 shown. The refrigerant compressor 2 has a hermetically sealed compressor housing 18, in the interior of which a refrigerant-compressing piston-cylinder unit 19 operates. The piston-cylinder unit 19 has a valve plate, in which a suction opening is arranged, which in turn is part of a suction valve, through which the refrigerant is sucked. The valve plate and the intake valve are arranged on a cylinder head 20 of the piston-cylinder unit 19. Accordingly, the suction muffler 1 is arranged on the cylinder head 20, wherein the output 4 connects to the intake valve, so that the refrigerant can flow through the suction muffler 1 to the intake valve.

Fig. 8 shows a further embodiment of the suction muffler 1 according to the invention, wherein in the trays 8, 9, 10, a further recess is arranged, which forms a channel 13 in which the oil 14 can collect. By means of the channel 13, depending on the design of the channel 13, oil 14 can be selectively directed to the siphon sections 16, 17 or directed away therefrom. Preferably, therefore, the further depression, at least in sections, is somewhat less deep than those depressions which form the siphon sections 16, 17.

The channel 13 can also be extended to the oil drain hole 15 (not shown) so that it would then connect the further siphon portion 17 with the oil drain hole 15 in the embodiment shown. By suitable design of the channel 13, the oil 14 can be selectively supplied to the oil drain hole 15 in this way.

Fig. 9 shows a further embodiment of the suction muffler 1 according to the invention with a plurality of siphon sections 16. This may be particularly advantageous for relatively large amounts of accumulating oil 14. Due to the large number of siphon sections 16, a problem-free replacement of the oil 14 between the damping chambers 5 and 6 is ensured. Preferably, as shown, several further siphon sections 17 are provided in this case.

Fig. 10 shows a further embodiment of the suction muffler 1 according to the invention, which also allows in particular the unimpeded exchange of large quantities of oil 14 between the damping chambers 5 and 6. In this case, the siphon section 16 is made very wide and extends along the wall element 11 over a majority of the floors 8, 9, or almost over an entire width of the floors 8, 9. The siphon section 16 does not have to be particularly due to its width be executed deep to accommodate a lot of oil 14 can. Preferably, in this case, as shown, also a very broadly executed further siphon sections 17 are provided. The further siphon section 17 also extends almost over the entire width of the bottoms 9, 10 and, because of its width, does not have to be made particularly deep in order to be able to absorb a large amount of oil 14.

In the embodiment according to Fig. 4 the siphon sections 16, 17 have a substantially rectangular cross-section, which in conjunction with the wall elements 11, 12 results in a substantially U-shaped arrangement. Of course, a variety of other, angular and / or round cross-sectional shapes of the siphon sections 16, 17 - but also the wall elements 11, 12 - possible to finally achieve a substantially U- or V-shaped arrangement.

For illustration shows Fig. 11 in an enlarged view of a siphon section 16 with a triangular cross-section. Together with the wall element 11, which has a rectangular cross-section, results in a V-shaped arrangement.

Fig. 12 again shows a variant in which the siphon section 16 has a rectangular cross section, but the cross section of the wall member 11 deviates from a simple rectangular cross section. The wall element 11 has a sealing lip 21 projecting in the direction of the siphon section 16, which in turn has a rectangular cross-section in the exemplary embodiment shown. The sealing lip 21 is substantially thinner than the remaining wall element 11, wherein only the sealing lip 21 projects into the siphon section 16 from the wall element 11. In this case, the sealing lip 21 protrudes so far into the siphon section 16, that even at a very low oil level t ₂ gas and sound tightness is achieved in the siphon 16. By only the sealing lip 21 extends into the siphon 16, material and cost can be saved.

LIST OF REFERENCE NUMBERS

1

suction silencer

2

Refrigerant compressor

3

entrance

4

output

5

First damping chamber

6

Second damping chamber

7

Third damping chamber

8th

Bottom of the first damping chamber

9

Bottom of the second damping chamber

10

Bottom of the third damper chamber

11

wall element

12

Another wall element

13

channel

14

oil

15

Oil drain hole

16

Siphonabschnitt

17

Another siphon section

18

compressor housing

19

Piston-cylinder unit

20

cylinder head

21

sealing lip

t ₁

Oil level in the damping chamber

t ₂

Oil level in the siphon section

Claims (10)

1. Suction muffler (1) for a hermetic refrigeration compressor (2), the suction muffler (1) comprising an inlet (3), so that refrigerant can flow into the suction muffler (1), and an outlet (4), so that refrigerant can flow out from the suction muffler (1), the suction muffler (1) further comprising two damping chambers (5, 6) for sound damping, where the two damping chambers (5, 6) each has a floor (8, 9) and where a wall element (11) is provided in order to separate the two damping chambers (5, 6) from each other for the refrigerant in the region of their floors (8, 9), characterized in that in the region of the wall element (11) at least one siphon segment (16) connecting the two floors (8, 9) is disposed, in order to receive oil (14) in an operating position of the suction muffler (1), where the at least one siphon segment (16) connects the two damping chambers (5, 6) to each other for the oil (14) in siphon fashion.
2. Suction muffler (1) according to claim 1, characterized in that in at least one of the two floors (8, 9) a channel (13) is disposed, in order to accommodate oil (14) in the operating position of the suction muffler (1), wherein the channel (13) is connected to the at least one siphon segment (16).
3. Suction muffler (1) according to any one of claims 1 to 2, characterized in that the at least one siphon segment (16) is made as a depression in the two floors (8, 9) and in that preferably the channel (13) is made as an additional depression in the at least one of the two floors (8, 9), wherein the additional depression is, at least in a segment, less deep than the said depression.
4. Suction muffler (1) according to any one of claims 1 to 3, characterized in that at least one additional damping chamber (7) is provided, in that the at least one additional damping chamber (7) has a floor (10), in that at least one additional wall element (12) is provided, in order to separate the at least one additional damping chamber (7) for the refrigerant from at least one of the other damping chambers (5, 6) in the region of the respective floors (8, 9, 10), wherein in the region of the at least one additional wall element (12) at least one additional siphon segment (17) connecting the respective floors (8, 9, 10) is disposed, in order to receive oil (14) in an operating position of the suction muffler (1), and wherein the at least one additional siphon segment (17) connects the at least one additional damping chamber (7) for the oil (14) to at least one of the other damping chambers (5, 6) in siphon fashion.
5. Suction muffler (1) according to claim 4, dependent on claim 2, characterized in that the channel (13) is also disposed in the floor (10) of the at least one additional damping chamber (7) in order to receive oil (14) in the operating position of the suction muffler (1), wherein the channel (13) is connected to the at least one additional siphon segment (17).
6. Suction muffler (1) according to any one of claims 1 to 5, characterized in that an oil drain hole (15) is disposed in the floor (8, 9, 10) of a damping chamber (5, 6, 7).
7. Suction muffler (1) according to claim 6, characterized in that exactly one oil drain hole (15) is provided.
8. Suction muffler (1) according to any one of claims 6 to 7, dependent on claim 2, characterized in that the channel (13) is connected to the oil drain hole (15).
9. Suction muffler (1) according to any one of claims 1 to 8, characterized in that the floors (8, 9, 10) and the at least one siphon segment (16) and preferably the at least one additional siphon segment (17) are made in one piece.
10. Hermetic refrigeration compressor (2), which has a hermetic compressor housing (18), in the inside of which a piston-cylinder unit (19) that compresses the refrigerant operates with a suction valve comprising a suction opening disposed in a valve plate thereof, where a suction muffler (1) according to any one of claims 1 to 9 is disposed on a cylinder head (20) of the piston-cylinder unit (19) so that the refrigerant can flow through the suction muffler (1) to the suction valve.

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