Scroll compressor provided with an exhaust muffler device

Abstract

A scroll compressor includes: a compressor housing having a discharge port; a moving scroll disk; a stationary scroll disk, the stationary scroll disk including a discharge passage (16); an exhaust pressure volume (17) that is at least partially defined by the compressor housing and the stationary scroll disk (7); an exhaust silencer device (21), the exhaust silencer device including a first tubular element (28), an expansion chamber (33), and a second tubular element (35), the first tubular element being provided with a silencer inlet (29) in fluid communication with the discharge passage (16), the expansion chamber being in fluid communication with the internal volume of the first tubular element (28), and the second tubular element including an inlet opening located in the expansion chamber (33) and an outlet opening in fluid communication with the exhaust pressure volume (17).

Description

Technical Field

[0001] The present invention relates to a scroll compressor provided with a deflector plate disposed in an exhaust pressure volume defined by a stationary scroll plate and a compressor housing. Background Art

[0002] As is well known, a scroll compressor includes:

[0003] - a compressor housing having a discharge port,

[0004] - an orbiting scroll plate disposed within the compressor housing and including an orbiting baseplate and a spiral orbiting scroll extending from the orbiting baseplate,

[0005] - a stationary scroll plate disposed within the compressor housing and including a stationary baseplate and a spiral stationary scroll extending from the fixed base plate, the spiral stationary scroll and the spiral orbiting scroll together with the stationary baseplate and the orbiting baseplate defining a compression chamber, the stationary scroll plate further including a discharge passage formed in the stationary baseplate, and

[0006] - an exhaust pressure volume at least partially defined by the compressor housing and the stationary scroll plate and in fluid communication with the discharge passage.

[0007] A major part of the acoustic noise emitted by such a scroll compressor is due to the compressed refrigerant gas flowing from the fixed scroll into the exhaust pressure volume, typically formed in the upper part of the compressor housing.

[0008] To solve this problem, it is known to dispose a muffler within the exhaust pressure volume of the scroll compressor to suppress the noise emitted through the upper housing portion.

[0009] US5667371 discloses a scroll compressor with a muffler assembly including a perforated muffler and a top cover surrounding the perforated muffler and attached to a partition wall disposed inside the compressor housing between the suction volume and the exhaust pressure volume. An opening formed in the top cover communicates the compressed refrigerant gas that has all passed through the perforations of the muffler with the exhaust chamber of the scroll compressor.

[0010] CN106194755 discloses a scroll compressor with a muffler assembly attached to the fixed end plate of the stationary scroll plate. The muffler assembly includes an expansion chamber communicating with the exhaust port of the stationary scroll plate, and an exhaust pipe. The muffler assembly further includes a closed chamber communicating with the perforated portion of the exhaust pipe.

[0011] However, while providing improved noise damping through the scattering, reflection, and interference of sound waves, such muffler assemblies exhibit increased flow restriction and pressure loss, thereby negatively affecting the overall efficiency of the scroll compressor. Summary of the Invention

[0012] An object of the present invention is to provide an improved scroll compressor that can overcome the disadvantages encountered in conventional scroll compressors.

[0013] Another object of the present invention is to provide a scroll compressor with an exhaust muffler device disposed in the exhaust pressure volume of the scroll compressor to ensure improved sound attenuation without reducing the efficiency of the compressor.

[0014] According to the present invention, such a scroll compressor includes:

[0015] - A compressor housing having an outlet port,

[0016] - A moving scroll disk disposed within the compressor housing and including a moving base plate and a spiral moving scroll extending from the moving base plate,

[0017] - A stationary scroll disk disposed within the compressor housing and including a stationary base plate and a spiral stationary scroll extending from the stationary base plate, the spiral stationary scroll and the spiral moving scroll together with the stationary base plate and the moving base plate defining a compression chamber, the stationary scroll disk further including a discharge passage formed in the stationary base plate,

[0018] - An exhaust pressure volume at least partially defined by the compressor housing and the stationary scroll disk,

[0019] - An exhaust muffler device attached to the stationary scroll disk, particularly the stationary base plate, and disposed in the exhaust pressure volume,

[0020] wherein the exhaust muffler device includes a first tubular element, an expansion chamber, and a second tubular element, the first tubular element being provided with a muffler inlet in fluid communication with the discharge passage, the expansion chamber being in fluid communication with the internal volume of the first tubular element, and the second tubular element including an inlet opening located in the expansion chamber and an outlet opening in fluid communication with the exhaust pressure volume.

[0021] This configuration of the exhaust muffler device, particularly providing a first tubular element with a muffler inlet on the one hand and an expansion chamber in fluid communication with the exhaust pressure volume through the second tubular element on the other hand, provides improved noise damping (through the scattering, reflection, and interference of sound waves) while reducing the pressure loss within the exhaust muffler device.

[0022] Therefore, compared with the acoustic behavior and efficiency of a scroll compressor of the prior art, the acoustic behavior and efficiency of the scroll compressor according to the present invention are greatly improved.

[0023] The scroll compressor may further include one or more of the following features, either individually or in combination.

[0024] According to an embodiment of the present invention, an exhaust muffler device extends over the discharge passage.

[0025] According to an embodiment of the present invention, the exhaust muffler device includes a plurality of attachment tabs that are fixed to the stationary scroll, for example, by using screws or bolts. However, other suitable methods, such as fusion welding, brazing, or bonding, may be employed to attach the exhaust muffler device to the stationary scroll.

[0026] According to an embodiment of the present invention, the compressor housing includes an upper cover, and the exhaust muffler device is disposed in the exhaust pressure volume, thereby defining a gap between the upper cover and the upper surface of the exhaust muffler device.

[0027] According to an embodiment of the present invention, the first tubular element and the second tubular element extend substantially parallel to each other.

[0028] According to an embodiment of the present invention, the first tubular element and / or the second tubular element extend substantially vertically.

[0029] According to an embodiment of the present invention, the first tubular element has a circular cross-section.

[0030] According to an embodiment of the present invention, the second tubular element has a circular cross-section.

[0031] According to an embodiment of the present invention, the first tubular element includes a first tubular wall portion and a second tubular wall portion. The first tubular wall portion is adjacent to the muffler inlet and defines an inlet chamber, and the second tubular wall portion includes an orifice leading into the expansion chamber.

[0032] According to an embodiment of the present invention, the first tubular element includes a first open end and a second open end. The first open end defines the muffler inlet, and the second open end is remote from the muffler inlet and is in fluid communication with the exhaust pressure volume.

[0033] According to an embodiment of the present invention, the second tubular element includes a first open end that defines an inlet opening and a second open end that defines an outlet opening.

[0034] According to an embodiment of the present invention, the second open end of the first tubular element leads into the exhaust pressure volume.

[0035] According to an embodiment of the present invention, the outlet opening of the second tubular element leads into the exhaust pressure volume. Thus, the second tubular element fluidly connects the expansion chamber to the exhaust pressure volume.

[0036] According to an embodiment of the present invention, an exhaust muffler device includes an outlet chamber provided with a muffler outlet located in an exhaust pressure volume.

[0037] According to an embodiment of the present invention, the muffler outlet is located at a predetermined spacing distance from an exhaust outlet in the exhaust pressure volume to allow communication between the exhaust pressure volume and a compressed refrigerant gas flow emerging from the muffler outlet.

[0038] According to an embodiment of the present invention, the muffler outlet is oriented towards an outlet provided on a compressor housing. Moreover, the gas flow from the exhaust muffler device to the outlet is smoother and more direct, with minimal turbulence and pressure loss generated, contributing to improving the efficiency of the scroll compressor. In addition, it prevents the relatively hot and pulsating compressed refrigerant gas flow from directly hitting the inner surface of the upper cover of the compressor housing, thereby reducing noise and the outer surface temperature of the upper cover.

[0039] According to an embodiment of the present invention, a second open end of the first tubular element leads into the outlet chamber.

[0040] According to an embodiment of the present invention, the outlet opening of the second tubular element leads into the outlet chamber. Thus, the second tubular element fluidly connects the expansion chamber and the outlet chamber.

[0041] According to an embodiment of the present invention, the second tubular element is at least partially disposed in the outlet chamber.

[0042] According to an embodiment of the present invention, the exhaust muffler device includes a bottom wall, side walls, and an intermediate wall, and the expansion chamber is defined by the bottom wall, side walls, the first tubular element, and the intermediate wall.

[0043] According to an embodiment of the present invention, the outlet chamber is located above the expansion chamber.

[0044] According to an embodiment of the present invention, the bottom wall and / or the intermediate wall extend substantially horizontally.

[0045] According to an embodiment of the present invention, the second tubular element is provided on the intermediate wall.

[0046] According to an embodiment of the present invention, the second tubular element protrudes from the upper surface of the intermediate wall and, in particular, extends upward from the upper surface of the intermediate wall.

[0047] According to an embodiment of the present invention, the first tubular element extends downward from the lower surface of the intermediate wall.

[0048] According to an embodiment of the present invention, the side walls of the exhaust muffler device have an integral cylindrical shape.

[0049] According to an embodiment of the present invention, the first tubular element protrudes from the lower surface of the bottom wall.

[0050] According to an embodiment of the present invention, the exhaust muffler device includes a top wall, an outlet chamber defined by the top wall, side walls, and an intermediate wall, and the intermediate wall separates the expansion chamber and the outlet chamber.

[0051] According to an embodiment of the present invention, the exhaust muffler device includes a muffler body, and the muffler body includes a bottom wall, a top wall, side walls, and an intermediate wall. Advantageously, the intermediate wall is disposed within the internal volume of the muffler body.

[0052] According to an embodiment of the present invention, the expansion chamber is annular and surrounds a first tubular element.

[0053] According to an embodiment of the present invention, the scroll compressor further includes an intermediate member that fluidly connects the discharge passage formed in the stationary scroll plate to the muffler inlet in a continuous manner. This arrangement avoids the turbulence and pressure loss of the compressed refrigerant gas between the stationary scroll plate and the exhaust muffler device, and helps to improve the overall efficiency of the scroll compressor.

[0054] According to an embodiment of the present invention, the intermediate member is disposed in the discharge passage.

[0055] According to an embodiment of the present invention, the intermediate member includes a refrigerant guiding portion having an inner circumferential surface that converges toward the muffler inlet and is configured to guide the compressed refrigerant gas flowing through the discharge passage toward the muffler inlet.

[0056] According to an embodiment of the present invention, the intermediate member includes a mounting portion, and the lower end portion of the first tubular element, particularly the lower end portion of the first tubular wall portion, is mounted (e.g., sealingly mounted) thereon.

[0057] According to an embodiment of the present invention, the intermediate member has an annular shape.

[0058] According to an embodiment of the present invention, the exhaust muffler device is made integrally.

[0059] According to an embodiment of the present invention, the exhaust muffler is made of a polymer material compatible with the refrigerant and lubricating oil used in the scroll compressor and can withstand the exhaust temperature under the operating conditions of the scroll compressor.

[0060] According to an embodiment of the present invention, the exhaust muffler device is made by a molding or additive manufacturing method.

[0061] According to an embodiment of the present invention, the exhaust muffler device includes a reinforcing structure, such as reinforcing ribs, which are provided on the outer surface of at least one muffler component of the exhaust muffler device, such as on the outer surfaces of the top wall, bottom wall, and / or side walls, to further minimize the transmission of vibrations and noise of the at least one muffler component to the outside of the compressor housing.

[0062] Since the accompanying drawings of the present application illustrate two embodiments (by way of non - limiting example) of a scroll compressor according to the present invention, these and other advantages will become apparent upon reading the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] The following detailed description of one embodiment of the present invention will be better understood when read in conjunction with the accompanying drawings. However, the present invention is not limited to the specific embodiments disclosed.

[0064] Figure 1 is a longitudinal sectional view of a scroll compressor according to a first embodiment of the present invention.

[0065] Figure 2 is Figure 1 a longitudinal sectional view of an exhaust muffler device of the scroll compressor of

[0066] Figure 3 is Figure 2 a front view of the exhaust muffler device of

[0067] Figure 4 is Figure 2 a perspective view of the exhaust muffler device of

[0068] Figure 5 is Figure 1 an enlarged view of details of

[0069] Figure 6 is a partial longitudinal sectional view of a scroll compressor according to a second embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0070] Figure 1 A scroll compressor 1 in a vertical position according to the present invention is described.

[0071] The scroll compressor 1 includes a compressor housing 2 provided with a suction port 3 and a discharge port 4. The suction port 3 is configured to supply refrigerant to be compressed to the scroll compressor 1, and the discharge port 4 is configured to discharge the compressed refrigerant. Advantageously, the discharge port 4 is provided on the side wall of the upper cover of the compressor housing 2.

[0072] The scroll compressor 1 further includes support means 5 fixed to the compressor housing 2, and a compression unit 6 disposed within the compressor housing 2 and supported by the support means 5. The compression unit 6 is configured to compress the refrigerant supplied through the suction port 3. The compression unit 6 includes a stationary scroll plate 7 and a moving scroll plate 8. The stationary scroll plate 7 is fixed relative to the compressor housing 2, and the moving scroll plate 8 is supported by a thrust bearing surface 9 provided on the support means 5 and is in slidable contact with the thrust bearing surface 9.

[0073] The stationary scroll disk 7 includes a stationary substrate 11 having a lower surface oriented toward the orbiting scroll disk 8 and an upper surface opposite to the lower surface of the stationary substrate 11. The stationary scroll disk 7 further includes a spiral stationary scroll wrap 12 protruding from the lower surface of the stationary substrate 11 toward the orbiting scroll disk 8.

[0074] The orbiting scroll disk 8 includes an orbiting substrate 13 having an upper surface oriented toward the stationary scroll disk 7 and a lower surface opposite to the upper surface of the orbiting substrate 13 and is slidably mounted on the thrust bearing surface 9. The orbiting scroll disk 8 further includes a spiral orbiting scroll wrap 14 protruding from the upper surface of the orbiting substrate 13 toward the stationary scroll disk 7. The spiral orbiting scroll wrap 14 of the orbiting scroll disk 8 meshes with the spiral stationary scroll wrap 12 of the stationary scroll disk 7 to form a plurality of compression chambers 15 therebetween. When the orbiting scroll disk 8 is driven relative to the stationary scroll disk 7 to orbit, each compression chamber 15 has a variable volume that decreases from the outside to the inside.

[0075] The stationary scroll disk 7 further includes a discharge passage 16 formed in a central portion of the stationary substrate 11 and in fluid communication with the compression chambers 15. The discharge passage 16 is also in fluid communication with an exhaust pressure volume 17 defined by the compressor housing 2 and the stationary scroll disk 7.

[0076] In addition, the scroll compressor 1 includes: a drive shaft 18 extending vertically, the drive shaft 18 being configured to drive the orbiting scroll disk 8 to perform an orbiting motion; and an electric drive motor 19, which can be, for example, a variable-speed electric drive motor, the variable-speed electric drive motor being coupled to the drive shaft 18 and configured to drive the drive shaft 18 to rotate about a rotational axis A.

[0077] The scroll compressor 1 further includes an exhaust muffler device 21 disposed in the exhaust pressure volume 17 so as to define a gap between an upper cover of the compressor housing 2 and an upper surface of the exhaust muffler device 21. Advantageously, the exhaust muffler device 21 is attached to the stationary scroll disk 7, particularly the stationary substrate 11, for example, by using screws or bolts. However, other suitable methods, such as fusion welding, brazing, or adhesion, can also be employed to attach the exhaust muffler device 21 to the stationary scroll disk 7. The exhaust muffler device 21 may include a plurality of attachment tabs 22 fixed to the stationary scroll disk 7.

[0078] The exhaust muffler device 21 includes a muffler body 23 having, for example, an integral cylindrical shape and being made as a single piece. The muffler body 23 can be manufactured from a polymer material compatible with the refrigerant and lubricating oil used in the scroll compressor 1 and is capable of withstanding the exhaust temperature under the operating conditions of the scroll compressor 1. Advantageously, the muffler body 23 is manufactured by a molding or additive manufacturing method.

[0079] The silencer body 23 includes a bottom wall 24, a top wall 25 (also referred to as a top cover) opposite to the bottom wall 24, and side walls 26 connecting the bottom wall 24 and the top wall 25. The silencer body further includes an intermediate wall 27 which is disposed within the internal volume of the silencer body 23 defined by the bottom wall 24, the top wall 25, and the side walls 26. The intermediate wall 27 is particularly disposed between the bottom wall 24 and the top wall 25 and is substantially parallel to the bottom wall 24. According to the embodiment shown in the figures, the bottom wall 24 and the intermediate wall 27 extend horizontally.

[0080] The exhaust silencer device 21 further includes a first tubular element 28 which has a first open end defining a silencer inlet 29 in fluid communication with the discharge passage 16 and a second open end remote from the silencer inlet 29. The first tubular element 28 may have a circular cross-section.

[0081] The first tubular element 28 particularly includes a first tubular wall portion 28.1 adjacent to the silencer inlet 29 and defining an intake chamber 31 and a second tubular wall portion 28.2 including an orifice 32. Advantageously, the first tubular element 28 extends downwardly from the lower surface of the intermediate wall 27 and projects from the lower surface of the bottom wall 24.

[0082] The exhaust silencer device 21 further includes an expansion chamber 33 defined by the bottom wall 24, the side walls 26, the first tubular element 28, and the intermediate wall 27. The expansion chamber 33 is in fluid communication with the internal volume of the first tubular element 28 via an opening 32 which opens into the expansion chamber 33. Advantageously, the expansion chamber 33 is annular and surrounds the first tubular element 28.

[0083] In addition, the exhaust silencer device 21 includes an outlet chamber 34 defined by the top wall 25, the side walls 26, and the intermediate wall 27 of the silencer body 23. The outlet chamber 34 is located above the expansion chamber 33 and the intermediate wall 27 separates the exhaust chamber 34 from the expansion chamber 33.

[0084] As Figure 2 shown, the second open end of the first tubular element 28 opens into the outlet chamber 34 and the exhaust silencer device 21 includes a second tubular element 35 which is disposed on the intermediate wall 27 and fluidly connects the expansion chamber 33 and the outlet chamber 34. The second tubular element 35 includes a first open end defining an inlet opening located in the expansion chamber 33 and a second open end defining an outlet opening located in the outlet chamber 34.

[0085] According to the embodiment shown in the figures, the second tubular element 35 has a circular cross-section, is disposed in the outlet chamber 34, and extends upwardly from the upper surface of the intermediate wall 27. Advantageously, the first tubular element 28 and the second tubular element 35 extend vertically.

[0086] The outlet chamber 34 is provided with a muffler outlet 36 which is located in the exhaust pressure volume 17 at a predetermined separation distance from the exhaust outlet 4 to allow communication between the exhaust pressure volume 17 and the compressed refrigerant gas flow flowing out from the muffler outlet 36. Advantageously, the muffler outlet 36 is directed towards the exhaust outlet 4 provided on the compressor housing 2.

[0087] According to the embodiment shown in the figure, the exhaust muffler device 21 includes a reinforcing structure 37, for example, reinforcing ribs, which are provided on the outer surface of at least one muffler component of the exhaust muffler device 21, such as the outer surfaces of the top wall 25, the bottom wall 24 and / or the side wall 26, to further minimize the transmission of vibrations and noise of at least one muffler component to the outside of the compressor housing 2.

[0088] The scroll compressor 1 further includes an intermediate member 38 which fluidly connects the discharge passage 16 formed in the stationary scroll disk 7 in a continuous manner to the muffler inlet 29. According to the embodiment shown in the figure, the intermediate member 38 has an annular shape and is arranged (for example, firmly mounted) in the discharge passage 16. In particular, the intermediate member 28 includes:

[0089] - a refrigerant guiding portion 38.1 having an inner circumferential surface which converges towards the muffler inlet 29 and is configured to guide the compressed refrigerant gas flow flowing through the discharge passage 16 towards the muffler inlet 29, and

[0090] - a mounting portion 38.2 in which the lower end portion of the first tubular element 28, in particular the lower end portion of the first tubular wall portion 28.1, is mounted (for example, sealingly mounted).

[0091] Now the operation of the scroll compressor 1 will be described.

[0092] When the scroll compressor 1 according to the present invention is started, the orbiting scroll 8 is driven by the drive shaft 18 after an orbiting motion, and this motion of the orbiting scroll 8 causes the suction and compression of the refrigerant in the compression chamber 15. The compressed refrigerant gas flow exits the compression unit 6 through the discharge passage 16 formed in the middle of the stationary scroll 7 and enters the discharge silencer device 21 via the silencer inlet 29. Then, a first portion of the compressed refrigerant gas flow entering the discharge silencer device 21 flows through the first tubular element 28, enters the outlet chamber 34, and exits the discharge silencer device 21 via the silencer outlet 36. A second portion of the compressed refrigerant gas entering the discharge silencer device 21 enters the expansion chamber 33 via the orifice 32 provided on the first tubular element 28, expands in the expansion chamber 33, enters the outlet chamber 34 via the second tubular element 35, and exits the exhaust silencer device 21 via the silencer outlet 36. Then, the first portion and the second portion of the compressed refrigerant gas flow are directed towards the discharge port 4 provided on the compressor housing 2 through the silencer outlet 36.

[0093] This configuration of the discharge silencer device 21 provides improved noise damping through the scattering, reflection, and interference of sound waves within the discharge silencer device 21, while reducing the pressure loss within the discharge silencer device 21.

[0094] In addition, the gas flow from the discharge silencer device 21 towards the discharge port 4 is smoother and more direct, with minimal resulting turbulence and pressure loss, contributing to further improving the efficiency of the scroll compressor 1. In addition, it prevents the relatively hot and pulsating compressed refrigerant gas flow from directly hitting the inner surface of the upper cover of the compressor housing 2, thereby further reducing the noise generated by the scroll compressor 1 and reducing the outer surface temperature of the upper cover.

[0095] Figure 6 A scroll compressor 1 according to a second embodiment of the present invention is disclosed, and its essential difference from the Figures 1 to 5 first embodiment shown is that the discharge silencer device 21 has no discharge chamber, wherein the second open end of the first tubular element 28 leads to the discharge pressure volume 17 and the outlet opening of the second tubular element 35 leads to the discharge pressure volume 17.

[0096] According to this embodiment of the present invention, the expansion chamber 33 is defined by a bottom wall 24, side walls 26, the first tubular element 28, and a top wall 25.

[0097] Of course, the present invention is not limited to the above embodiments described by way of non-limiting examples. On the contrary, it encompasses all its embodiments.

Claims

1. A scroll compressor (1), comprising: A compressor housing (2) having a discharge port (4), A moving scroll disk (8) disposed within the compressor housing (2) and including a moving base plate (13) and a spiral moving scroll (14) extending from the moving base plate (13), A stationary scroll disk (7) disposed within the compressor housing (2) and including a stationary base plate (11) and a spiral stationary scroll (12) extending from the stationary base plate (11), the spiral stationary scroll (12) and the spiral moving scroll (14) together with the stationary base plate (11) and the moving base plate (13) defining a compression chamber (15), the stationary scroll disk (7) further including a discharge passage (16) formed in the stationary base plate (11), An exhaust pressure volume (17) at least partially defined by the compressor housing (2) and the stationary scroll disk (7), An exhaust muffler device (21) attached to the stationary scroll disk (7) and disposed within the exhaust pressure volume (17), Wherein the exhaust muffler device (21) includes a first tubular element (28), an expansion chamber (33), and a second tubular element (35), the first tubular element (28) being provided with a muffler inlet (29) in fluid communication with the discharge passage (16), the expansion chamber (33) being in fluid communication with the internal volume of the first tubular element (28) via an orifice (32) provided in the first tubular element (28), the second tubular element (35) including an inlet opening located within the expansion chamber (33) and an outlet opening in fluid communication with the exhaust pressure volume (17), The first tubular element (28) includes a first open end and a second open end, the first open end defining the muffler inlet (29), the second open end being remote from the muffler inlet (29) and in fluid communication with the exhaust pressure volume (17).

2. The scroll compressor (1) according to claim 1, wherein, The first tubular element (28) includes a first tubular wall portion (28.1) and a second tubular wall portion (28.2), the first tubular wall portion being adjacent to the muffler inlet (29) and defining an inlet chamber (31), the second tubular wall portion (28.2) including the orifice (32).

3. The scroll compressor (1) according to claim 1, wherein, The second open end of the first tubular element (28) opens into the exhaust pressure volume (17).

4. The scroll compressor (1) according to any one of claims 1 to 3, wherein, The outlet opening of the second tubular element (35) opens into the exhaust pressure volume (17).

5. The scroll compressor (1) according to claim 1 or 2, wherein, The exhaust muffler device (21) includes an outlet chamber (34) provided with a muffler outlet (36), the muffler outlet being located within the exhaust pressure volume (17).

6. The scroll compressor (1) according to claim 5, wherein, The second open end of the first tubular element (28) opens into the outlet chamber (34).

7. The scroll compressor (1) according to claim 5, wherein, The outlet opening of the second tubular element (35) opens into the outlet chamber (34).

8. The scroll compressor (1) according to claim 5, wherein, The muffler outlet (36) is oriented towards the discharge port (4) provided on the compressor housing (2).

9. The scroll compressor (1) according to claim 5, wherein, The second tubular element (35) is at least partially disposed within the outlet chamber (34).

10. The scroll compressor (1) according to claim 5, wherein, The exhaust muffler device (21) includes a bottom wall (24), side walls (26), and an intermediate wall (27), and the expansion chamber (33) is defined by the bottom wall (24), side walls (26), a first tubular element (28), and the intermediate wall (27).

11. The scroll compressor (1) according to claim 10, wherein, The exhaust muffler device (21) includes a top wall (25), and an outlet chamber (34) is defined by the top wall (25), the side walls (26), and the intermediate wall (27), and the intermediate wall (27) separates the expansion chamber (33) and the outlet chamber (34).

12. The scroll compressor (1) according to claim 1, wherein, The expansion chamber (33) is annular and surrounds the first tubular element (28).

13. The scroll compressor (1) according to claim 1, further comprising an intermediate member (38) that fluidly connects, in a continuous manner, a discharge passage (16) formed in the stationary scroll plate (7) to the muffler inlet (29).

14. The scroll compressor (1) according to claim 13, wherein, The intermediate member (38) is disposed in the discharge passage (16).

15. The scroll compressor (1) according to claim 13 or 14, wherein, The intermediate member (38) includes a refrigerant guiding portion (38.1) having an inner circumferential surface that converges toward the muffler inlet (29) and is configured to guide a compressed refrigerant gas flow passing through the discharge passage (16) toward the muffler inlet (29).

16. The scroll compressor (1) according to claim 13, wherein, The intermediate member (38) includes a mounting portion (38.2) in which a lower end portion of the first tubular element (28) is mounted.

17. The scroll compressor (1) according to claim 1, wherein, The exhaust muffler device (21) is made integrally.

18. The scroll compressor (1) according to claim 1, wherein, The exhaust muffler device (21) includes a reinforcement structure (37) provided on an outer surface of at least one muffler component of the exhaust muffler device (21) to further minimize transmission of vibrations and noise of the at least one muffler component to the outside of the compressor housing (2).

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