Refrigerant compressor unit

Abstract

In order to improve the refrigerant compressor of the type described at the beginning in such a way that, even if the longitudinal direction of the refrigerant compressor unit is inclined with respect to the horizontal course of the longitudinal direction, it is ensured that lubricant is reliably drawn out of the lubricant sump in order to avoid excessive accumulation of lubricant in the lubricant sump, according to the invention, a receiving point is provided on the bottom side of the motor chamber, said receiving point being designed to supply the lubricant from the lubricant reservoir to the extraction unit.

Description

[0001] This application is a divisional application of the invention patent application with application date May 23, 2023, application number 202310583966.1 (priority data DE102022113123.8, 2022.05.24) for "Refrigerant compressor unit". TECHNICAL FIELD

[0002] The invention relates to a refrigerant compressor unit comprising a piston compressor driven by a drive motor and a total housing having a housing main body which forms a drive housing section having a drive chamber for the piston compressor and a motor housing section having a motor chamber for accommodating the drive motor, wherein the motor chamber is traversed by refrigerant supplied to the piston compressor, whereby a lubricant pool is configured on the bottom side in the motor chamber, from which lubricant pool lubricant is extracted by means of an extraction unit and transferred into a lubricant trough in the drive chamber. BACKGROUND

[0003] Such a refrigerant compressor unit is known, for example, from DE2250947.

[0004] However, in such a refrigerant compressor unit the problem arises that it is inclined in use, in particular in mobile use, which leads to the lubricant of the lubricant pool not being reliably extracted by the extraction unit. SUMMARY

[0005] It is therefore the task of the invention to improve the refrigerant compressor of the type initially described in such a way that even when the longitudinal direction of the refrigerant compressor unit is inclined relative to the horizontal course of the longitudinal direction, reliable extraction of the lubricant from the lubricant pool is ensured, so that an excessive accumulation of lubricant in the lubricant pool is avoided.

[0006] According to the invention, this task is solved in a refrigerant compressor unit of the type initially mentioned in that a receiving site is provided on the bottom side of the motor chamber, which receiving site is configured in such a way that it receives lubricant from the lubricant pool and supplies it to the extraction unit, in particular when the refrigerant compressor unit is inclined relative to the initial position (within the range of the inclination tolerance).

[0007] Here, the extraction unit is in particular configured in such a way that the suction channel of the extraction unit extends into the receiving site.

[0008] Here, the receiving site is preferably configured in such a way that it is configured as a recess relative to its environment on the bottom side, wherein in this case the suction channel of the extraction unit in particular extends to the lowest point of this recess.

[0009] Of particular interest is that the receiving portion is positioned in the motor chamber such that when the refrigerant compressor unit is tilted, i.e., in its initial position within a tilt tolerance range of ±15° relative to the horizontal direction, the lubricant pool extends to the receiving portion and lubricant enters the receiving portion from the lubricant pool.

[0010] It is particularly advantageous that the receiving portion is located in the region on the bottom side of the motor chamber, which extends from the intermediate wall separating the motor chamber from the drive chamber to the region of the stator facing the intermediate wall, and in particular extends up to half of the stator's longitudinal extension.

[0011] This position of the receiving part enables lubricant to be reliably drawn from the lubricant pool even when the refrigerant compressor unit is tilted.

[0012] Advantageously, the receiving part is spaced apart from the intermediate wall, especially offset in the direction of the stator.

[0013] What is particularly advantageous is that the receiving part is located between the intermediate wall and the stator laminations surrounding the stator pole shoes.

[0014] If the housing is located below the winding end of the stator facing the intermediate wall in the direction of gravity, then the housing can be advantageously constructed on the bottom side of the motor chamber.

[0015] If the receiving part is constructed in a recess relative to the bottom surface of the motor chamber, then lubricant can be extracted from the lubricant pool in a particularly suitable manner.

[0016] In principle, it can be envisioned that a tank for holding a lubricant pool is provided in the motor chamber, forming a bottom surface and a receiving area.

[0017] However, a particularly advantageous solution stipulates that the housing is constructed on the bottom body of the motor housing section.

[0018] What is particularly advantageous is that the receiving part is molded into the bottom body.

[0019] In order to provide sufficient depth for the receiving part, it is preferably specified that the bottom body is provided with a shaped part that extends toward the vertical surface of the shell body in order to form the receiving part.

[0020] Furthermore, it is particularly advantageous for the refrigerant compressor unit to be tilted laterally to the axis of rotation of the compressor shaft, that the housing is located in the central area on the bottom side of the motor compartment when viewed in the longitudinal direction transverse to the overall housing.

[0021] In addition, to improve tilt tolerance, the amount of lubricant in the lubricant pool in the motor chamber is limited by a barrier wall set between the stator and the housing cover in the direction of the housing cover that encloses the motor chamber and is opposite to the drive chamber, so that the lubricant pool cannot even extend to the housing cover.

[0022] However, the lubricant pool can also be limited by providing a lubricant displacement body between the stator and the housing cover, which reduces the volume of the lubricant pool due to its volume range.

[0023] Therefore, the amount of lubricant in the lubricant pool can be reduced to a significant extent without compromising lubrication.

[0024] In this case, the lubricant replacement body is particularly retained on the housing cover plate, and preferably extends from the housing cover plate toward the stator.

[0025] A particularly simple solution involves molding a lubricant displacement body onto the housing cover, thereby reducing the volume of the lubricant pool between the stator and the housing cover in a simple manner in the underside region of the motor chamber.

[0026] Furthermore, it is preferably specified that the lubricant displacement body forms a barrier wall.

[0027] Therefore, the foregoing description of the solution according to the present invention particularly includes various combinations of features defined by the following numbered embodiments:

[0028] 1. A refrigerant compressor unit comprising a reciprocating compressor (40) driven by a drive motor (50) and a main housing (12) having a housing body (16), the housing body forming a drive housing section (32) having a drive chamber (34) for the reciprocating compressor (40) and a motor housing section (42) having a motor chamber (44) for accommodating the drive motor (50), wherein the motor chamber (44) is through which refrigerant supplied to the reciprocating compressor (40) flows, thereby in the motor chamber (44) at the bottom side A lubricant pool (162) is constructed, from which lubricant is extracted by means of an extraction unit (150) and transferred to a lubricant tank (132) in the drive chamber (34). A receiving portion (164) is provided on the bottom side of the motor chamber (44), which is configured to receive lubricant from the lubricant pool (162) and supply lubricant to the extraction unit (150), especially when the refrigerant compressor unit (10) is tilted relative to an initial position within the tilt tolerance range.

[0029] 2. The refrigerant compressor unit according to embodiment 1, wherein the receiving portion (164) is recessed relative to its bottom side.

[0030] 3. The refrigerant compressor unit according to embodiment 1 or 2, wherein the receiving portion (164) is provided in the motor chamber (44) such that when the refrigerant compressor unit (10) is tilted, i.e., when the rotation axis (56) of the compressor shaft (60) is in an initial position within a tilt tolerance range of ±15° relative to the horizontal direction, the lubricant pool (162) extends to the receiving portion (164) and lubricant enters the receiving portion from the lubricant pool (132).

[0031] 4. The refrigerant compressor unit according to one of the above embodiments, wherein the receiving portion (164) is provided in a region (168) on the bottom side of the motor chamber (44), the region extending from the intermediate wall (36) separating the motor chamber (44) from the drive chamber (34) to the region of the stator (52) facing the intermediate wall (36), and particularly extending at most to half of the longitudinal extension of the stator (52).

[0032] 5. The refrigerant compressor unit according to one of the above embodiments, wherein the receiving portion (164) is located between the intermediate wall (36) and the stator lamination body (174) surrounding the pole shoe of the stator (52).

[0033] 6. The refrigerant compressor unit according to one of the above embodiments, wherein the receiving portion (164) is disposed on the bottom side of the motor chamber (44) below the winding end (176) of the stator facing the intermediate wall (36) in the direction of gravity.

[0034] 7. The refrigerant compressor unit according to one of the above embodiments, wherein the receiving portion (164) is constructed in the recess (184) relative to the bottom surface (166) of the motor chamber (44).

[0035] 8. The refrigerant compressor unit according to embodiment 7, wherein the receiving portion (164) is constructed on the bottom body (182) of the motor housing section (42).

[0036] 9. The refrigerant compressor unit according to embodiment 8, wherein the receiving portion (164) is formed into the bottom body (182).

[0037] 10. The refrigerant compressor unit according to one of the above embodiments, wherein the bottom body (182) is provided with a molded portion (186) extending toward the upright surface (188) of the housing body (16) in order to form a receiving portion (164).

[0038] 11. The refrigerant compressor unit according to one of the above embodiments, wherein, viewed in the longitudinal direction (14) transverse to the main housing (12), the receiving portion (164) is located in the central region on the bottom side of the motor chamber (44).

[0039] 12. The refrigerant compressor unit according to one of the above embodiments, wherein the lubricant pool (162) is limited by a baffle wall (192) disposed between the stator (52) and the housing cover (24) in the direction of the housing cover (24) of the closed motor chamber (44).

[0040] 13. The refrigerant compressor unit according to one of the above embodiments, wherein the range of the lubricant pool (162) in the direction of the housing cover plate (24) of the closed motor chamber (44) is limited by a lubricant displacement body (198) disposed between the stator and the housing cover plate.

[0041] 14. The refrigerant compressor unit according to embodiment 13, wherein the lubricant replacement body (198) is held on the housing cover plate (24).

[0042] 15. The refrigerant compressor unit according to embodiment 14, wherein the lubricant replacement body (198) is formed onto the housing cover plate (24).

[0043] 16. A refrigerant compressor unit according to any one of embodiments 12 to 15, wherein the lubricant replacement body (198) forms a barrier wall (192). Attached Figure Description

[0044] Other features and advantages of the invention are the subject of the following description and views of some embodiments.

[0045] In the picture:

[0046] Figure 1 A side view of a refrigerant compressor unit according to the present invention is shown;

[0047] Figure 2 Show along Figure 1 The cross-section of line 2-2 in the middle;

[0048] Figure 3 Show along Figure 2 The cross-section of line 3-3 in the middle;

[0049] Figure 4 Showing something similar to Figure 3 The cross-section shows that the rotation axis of the compressor shaft is inclined at +15° relative to the horizontal line;

[0050] Figure 5 Showing something similar to Figure 3The cross-section shows the compressor shaft tilted at -15° relative to the horizontal. Detailed Implementation

[0051] Figure 1 and Figure 2 An embodiment of the refrigerant compressor unit 10 shown includes an overall housing, generally marked 12, which extends along the longitudinal direction 14.

[0052] The main housing 12 here includes a housing body 16, which also extends in the longitudinal direction 14 and carries a first end cover 22 at a first end and a second end cover 24 at a second end, the second end cover also having a flange face 26 for mounting the inverter 28 on its side opposite to the housing body 16.

[0053] like Figure 2 and Figure 3 As shown, the housing body 16 includes a drive housing section 32 of a piston compressor, generally marked 40, wherein the drive housing section 32 surrounds a drive chamber 34 that extends between a first end cover plate 22 and a middle wall 36 of the housing body 16, the middle wall being located between the drive housing section 32 and the central motor housing section 42 of the housing body 16.

[0054] The motor housing section 42 for accommodating the electric motor 50 includes a motor chamber 44, which is itself located between the intermediate wall 36 and the second end cover plate 24, wherein the motor chamber 44 also extends from the motor housing section 42 into the second end cover plate 24.

[0055] An electric motor, generally marked 50, is located in motor chamber 44. The electric motor includes a stator 52 disposed in motor chamber 44 and a rotor 54 surrounded by stator 52, wherein the rotor 54 is rotatable about rotation axis 56.

[0056] For this purpose, the rotor 54 is located on the compressor shaft of the reciprocating compressor 40, which is marked 60 on the whole. The compressor shaft carries the rotor 54 in a rotor-bearing section 62 extending in the motor chamber 44 and supports the rotor in a manner that allows it to rotate about a rotation axis 56. The compressor shaft 60 also extends into the drive chamber 34 and has a drive section 64 passing through the drive chamber 34, which carries a plurality of eccentric wheels 66.

[0057] The compressor shaft 60 itself is rotatably supported in the overall housing 12 in a bearing housing 72 provided on the intermediate wall 36, and is also rotatably supported in a bearing housing 74 provided on the first end cover plate 22, so that the drive section 64 with the eccentric wheel 66 is located between the bearing housings 72 and 74, and the rotor bearing section 62 extends from the bearing housing 72 with the free end into the motor chamber 44.

[0058] like Figure 2 and Figure 3 As shown, the drive section 64 of the compressor shaft 60 uses its eccentric wheel 66 to drive a plurality of cylinders 82 of the reciprocating compressor 40. These cylinders are arranged in the drive housing section 32, for example, in the form of two cylinder groups 84 and 86. Each cylinder 82 has a cylinder chamber 92 in which the piston 94 can move in the stroke direction 96, and each cylinder chamber 92 is surrounded, for example, by a cylinder liner 98 located in the drive housing section 32.

[0059] Each piston 94 is driven by a connecting rod 102, which is hinged to the piston 94 on one side and surrounds an eccentric wheel 66 on the other side.

[0060] The cylinder chamber 92 of each cylinder group 84 and 86 is closed by a valve plate 104 or 106, wherein each valve plate 104 or 106 carries a cylinder head 112 or 114 on its side opposite to the corresponding cylinder chamber 92.

[0061] Cylinder head 112 is assigned to the first cylinder group 84 and cylinder head 114 is assigned to the second cylinder group 86.

[0062] Each valve plate 104, 196 and each cylinder head 112 and 114, for example, spans all cylinder chambers 92 of the cylinder 82 of the corresponding cylinder group 84 or 86.

[0063] The refrigerant compressor unit 10, which has two cylinder groups 84 and 86, operates as a two-stage compressor, for example. This means that the refrigerant drawn in through the suction connector 122 at a suction pressure PS is first compressed to an intermediate pressure PZ by the cylinder 82 of the first cylinder group 84, which forms the low-pressure stage. Then, it either flows into the housing body 16 through a channel or into the motor chamber 44 through an external pipe 124, flows through the motor chamber 44, and enters the intermediate pressure channel 126 of the drive housing section 32 from the motor chamber. Thus, the refrigerant at the intermediate pressure PZ can enter the suction chamber of the cylinder head 114 of the cylinder group 86, and is finally compressed to a high pressure PH by the cylinder 82 of the second cylinder group 86, which forms the high-pressure stage. The refrigerant at the high pressure PH can then be discharged from the high-pressure connector 128.

[0064] Furthermore, in this embodiment, a lubricant input unit 130 is provided in the first end cover plate 22. Figure 3The lubricant input unit, by means of a pump unit 138, allows lubricant to flow from a lubricant tank 132 located in the drive chamber 34 through a filter 134 located in the lubricant tank and a receiving channel 136 extending in the first cover plate 22 into a compressor shaft channel 142, which preferably extends coaxially with the rotation axis 56 in the compressor shaft 60. The pump unit is located, for example, on the first bearing cover plate 22 and is particularly assigned to the bearing housing 74, wherein the compressor shaft channel 142 extends from the bearing housing 74 to the bearing housing 72, and in the region of the intermediate wall 36, a transverse channel 144 guides the compressor shaft channel 142 in the region of the bearing housing 72 to the housing 146 located in the bearing housing 72 surrounding the compressor shaft 60. The delivery channel 148 of the extraction unit 150 extends from the housing 146 through the intermediate wall 36, which also has an input pipe 152 connected to the delivery channel 148 and extending to the injector 154.

[0065] If necessary, the extraction unit 150 also includes a check valve 156 disposed in the intermediate wall 36 and connected to the injector 154 on the suction side, and a suction passage 158 leading from the check valve 156 to the motor chamber 44, so that the extraction unit 150 can extract lubricant from the motor chamber 44, in which case the lubricant flows through the check valve 156 and is supplied by the injector 154 to the lubricant tank 132 in the drive chamber 34, as described, for example, in DE2250947.

[0066] In this case, the suction channel 158 can be formed by a tube or, as shown, by a hole on the bottom side.

[0067] In addition to check valve 156, only one connector element located in intermediate wall 36 can be provided.

[0068] As already mentioned, refrigerant flows through motor chamber 44, and because the refrigerant (especially when it comes from the low-pressure stage) carries lubricant, the lubricant is deposited on the bottom side of motor chamber 44 in the form of lubricant pool 162 as it flows through motor chamber 44 and is transferred to lubricant tank 132 of drive chamber 34 by means of extraction unit 150.

[0069] In order to accommodate the lubricant from the lubricant pool 162, a receiving portion 164 is provided on the bottom side of the motor chamber 44. The receiving portion is constructed such that it guides the lubricant from the lubricant pool 162 into the suction unit 150, and in particular its suction channel 158.

[0070] In the illustrated embodiment, the location of the receiving portion 164 is chosen such that the lubricant compressor unit 10 can also operate in a state in which, as... Figure 4 and Figure 5As shown, the rotation axis 56 does not extend horizontally, but can extend at an angle of ±15° relative to the horizontal direction.

[0071] This results in the receiving portion 164 being constructed in a recess 184 relative to the bottom surface 166 of the motor chamber 44, and also results in the receiving portion 164 being positioned in a region 168 on the bottom side that is in contact with the intermediate wall 36, which extends from the intermediate wall 36 to below a longitudinal partition 172 of the stator 52 facing the intermediate wall 36, wherein the longitudinal partition 172 includes at most half of the longitudinal extension 14 of the stator 52.

[0072] The receiving portion 164 is preferably located between the intermediate wall 36 and the stator lamination body 174 surrounding the pole shoe of the stator 52, particularly in the region of the motor chamber 44 where the winding end 176 of the stator 52 is located, and thus below the winding end 176.

[0073] In the illustrated embodiment, the bottom surface 166 is formed by the bottom body 182 of the motor housing section 42, and the recess 184 is formed into the bottom body 182 in order to construct the receiving portion 164.

[0074] The bottom body 182 is preferably provided with a molded portion 186 extending toward the upright surface 188 of the housing body 16, which is a structural recess 184.

[0075] However, it is also conceivable that the bottom surface 166 with the receiving part 164 is constructed in the bottom groove of the motor housing section 42 of the motor chamber 44.

[0076] Furthermore, the tilt tolerance is improved by limiting the amount of lubricant in the lubricant pool 162, and for this purpose, a baffle wall 192 higher than the bottom surface 166 is preferably provided between the stator 52 and the second bearing cover 24. This baffle wall extends transversely to the longitudinal direction 14 in the width of the motor chamber 44 and, in particular, extends to a certain height above the bottom surface 166, which is at least equal to the height of the lubricant pool 162 in the refrigerant compressor unit where the second bearing cover 24 is tilted lower than the first bearing cover 22. Figure 4 The surface height is 194 at that time.

[0077] The blocking wall 192 is preferably located near the winding end 196 of the stator 52 facing the second bearing cover plate 24.

[0078] In the simplest case, the blocking wall 192 is held on the second bearing cover 24, and is formed in one piece on the second bearing cover.

[0079] The barrier 192 is in particular a part of the lubricant displacement body 198, which extends into the motor chamber 44 between the stator 52 and the second bearing cover 24 and is preferably disposed on the second bearing cover 24. The lubricant displacement body is used to reduce the volume of lubricant in the motor chamber 44.

[0080] In addition, in order to discharge condensate, the lubricant replacement body 198 is provided with a discharge channel 202 on the bottom side, through which the condensate accumulated inside the lubricant replacement body 198 can flow out.

[0081] The second bearing cover 26 preferably also has cooling ribs 204 extending into the motor chamber 44. These cooling ribs extend from the bearing cover wall 206 adjacent to the inverter 28 toward the electric motor 50 so as to cool the inverter 28 by means of the refrigerant flowing through the motor chamber 44.

[0082] The cooling ribs 204 preferably extend from the bearing cover back wall 206 toward the electric motor 50 to such an extent that their ends 208 extend from the bearing cover back wall 206 by approximately the same distance as the baffle wall 192.

Claims

1. A refrigerant compressor unit comprising a reciprocating compressor (40) driven by a drive motor (50) and a main housing (12) having a housing body (16), the housing body forming a drive housing section (32) having a drive chamber (34) for the reciprocating compressor (40) and a motor housing section (42) having a motor chamber (44) for accommodating the drive motor (50), wherein, The refrigerant supplied to the reciprocating compressor (40) flows through the motor chamber (44), thereby constructing a lubricant pool (162) on the bottom side of the motor chamber (44). The lubricant is extracted from the lubricant pool by means of an extraction unit (150) and transferred to a lubricant tank (132) in the drive chamber (34). The invention is characterized in that a receiving portion (164) is provided on the bottom side of the motor chamber (44), the receiving portion being configured to receive lubricant from a lubricant pool (162) and supply lubricant to an extraction unit (150) through a suction channel when the refrigerant compressor unit (10) is tilted at ±15° relative to the horizontal direction, such that the extraction unit can extract lubricant from the receiving portion of the motor chamber and supply lubricant to the drive chamber, wherein the lubricant pool (162) extends to the receiving portion (164) and lubricant enters the receiving portion (164) from the lubricant pool (162), wherein the receiving portion (164) is configured as a recess relative to the environment on its bottom side, such that the receiving portion is lower than the bottom surface (166) of the motor chamber, wherein the suction channel of the extraction unit extends to be lower than the bottom surface (166) of the motor chamber.

2. A refrigerant compressor unit, comprising a reciprocating compressor (40) driven by a drive motor (50) and a main housing (12) having a housing body (16), the housing body forming a drive housing section (32) having a drive chamber (34) for the reciprocating compressor (40) and a motor housing section (42) having a motor chamber (44) for accommodating the drive motor (50), wherein, The refrigerant supplied to the reciprocating compressor (40) flows through the motor chamber (44), thereby forming a lubricant pool (162) on the bottom side of the motor chamber (44). The lubricant is extracted from the lubricant pool by means of the extraction unit (150) and transferred to the lubricant tank (132) in the drive chamber (34). A receiving portion (164) is provided on the bottom side of the motor chamber (44). The receiving portion is configured to receive the lubricant from the lubricant pool (162) and supply the lubricant to the extraction unit (150) when the refrigerant compressor unit (10) is tilted relative to an initial position within the tilt tolerance range. The characteristic feature is that the receiving portion (164) is constructed as a recess relative to the environment on its bottom side, so that the receiving portion is lower than the bottom surface (166) of the motor chamber.

3. The refrigerant compressor unit according to claim 2, characterized in that, The receiving portion (164) is provided in the motor chamber (44) such that when the refrigerant compressor unit (10) is tilted, i.e., when the rotation axis (56) of the compressor shaft (60) is in an initial position within a tilt tolerance range of ±15° relative to the horizontal direction, the lubricant pool (162) extends to the receiving portion (164) and lubricant enters the receiving portion from the lubricant pool (132).

4. The refrigerant compressor unit according to claim 1, characterized in that, The receiving portion (164) is provided in a region (168) on the bottom side of the motor chamber (44), the region extending from the intermediate wall (36) that separates the motor chamber (44) from the drive chamber (34) to the region of the stator (52) facing the intermediate wall (36), and extending at most to half of the longitudinal extension of the stator (52).

5. The refrigerant compressor unit according to claim 1, characterized in that, The receiving part (164) is located between the intermediate wall (36) that separates the motor chamber from the drive chamber and the stator lamination body (174) that surrounds the pole shoe of the stator (52).

6. The refrigerant compressor unit according to claim 1, characterized in that, The receiving part (164) is located on the bottom side of the motor chamber (44) below the winding end (176) of the stator facing the middle wall (36) in the direction of gravity.

7. A refrigerant compressor unit comprising a reciprocating compressor (40) driven by a drive motor (50) and a main housing (12) having a housing body (16), the housing body forming a drive housing section (32) having a drive chamber (34) for the reciprocating compressor (40) and a motor housing section (42) having a motor chamber (44) for accommodating the drive motor (50), wherein, The refrigerant supplied to the reciprocating compressor (40) flows through the motor chamber (44), thereby forming a lubricant pool (162) on the bottom side of the motor chamber (44). The lubricant is extracted from the lubricant pool by means of the extraction unit (150) and transferred to the lubricant tank (132) in the drive chamber (34). A receiving portion (164) is provided on the bottom side of the motor chamber (44). The receiving portion is configured to receive the lubricant from the lubricant pool (162) and supply the lubricant to the extraction unit (150) when the refrigerant compressor unit (10) is tilted relative to an initial position within the tilt tolerance range. The characteristic feature is that the receiving portion (164) is formed in a recess (184) relative to the bottom surface (166) of the motor chamber (44), wherein the suction channel of the extraction unit extends below the bottom surface (166) of the motor chamber.

8. The refrigerant compressor unit according to claim 7, characterized in that, The receiving part (164) is constructed on the bottom body (182) of the motor housing section (42).

9. The refrigerant compressor unit according to claim 8, characterized in that, The receiving part (164) is formed into the bottom body (182).

10. The refrigerant compressor unit according to claim 1, characterized in that, The bottom body (182) of the motor housing section (42) is provided with a molded part (186) extending toward the upright surface (188) of the housing body (16) in order to form a receiving part (164).

11. The refrigerant compressor unit according to claim 1, characterized in that, Viewed in the longitudinal direction (14) transverse to the overall housing (12), the receiving part (164) is located in the central area on the bottom side of the motor chamber (44).

12. The refrigerant compressor unit according to claim 1, characterized in that, The lubricant pool (162) is restricted in the direction of the housing cover (24) of the enclosed motor chamber (44) by a blocking wall (192) disposed between the stator (52) and the housing cover (24).

13. The refrigerant compressor unit according to claim 1, characterized in that, The extent of the lubricant pool (162) in the direction of the housing cover (24) of the enclosed motor chamber (44) is limited by the lubricant displacement body (198) disposed between the stator and the housing cover.

14. The refrigerant compressor unit according to claim 13, characterized in that, The lubricant replacement body (198) is held on the housing cover plate (24).

15. The refrigerant compressor unit according to claim 14, characterized in that, The lubricant replacement body (198) is formed onto the housing cover plate (24).

16. The refrigerant compressor unit according to claim 12, characterized in that, The lubricant displacement body (198) forms a barrier wall (192).

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