CN111749899B

CN111749899B - Compressor with oil distribution member

Info

Publication number: CN111749899B
Application number: CN201910232919.6A
Authority: CN
Inventors: 苏晓耕; 段振飞; 陈艳; 李斌; 于英林
Original assignee: Emerson Climate Technologies Inc
Current assignee: Copeland LP
Priority date: 2019-03-26
Filing date: 2019-03-26
Publication date: 2023-09-12
Anticipated expiration: 2039-03-26
Also published as: CN111749899A

Abstract

A compressor may include a compression mechanism, a drive shaft, and an oil distribution member. The drive shaft drives the compression mechanism and includes a lubricant passageway having an inlet and a first outlet and a second outlet. The first outlet is disposed vertically higher than the inlet and the second outlet is disposed vertically higher than the first outlet. An oil distribution member is disposed within the lubricant channel. The oil distribution member may define a first path, a second path, and a third path. The first path extends through a lower axial end of the oil distribution member. The second path receives a first portion of lubricant from the first path. The third path receives a second portion of the lubricant from the first path. The first portion of lubricant and the second portion of lubricant may be separated from each other at a position vertically higher than the first outlet.

Description

Compressor with oil distribution member

Technical Field

The present disclosure relates to compressors, and more particularly, to compressors having oil dosing members.

Background

This section provides background information related to the present disclosure and is not necessarily prior art.

A climate control system, such as a heat pump system, a refrigeration system, or an air conditioning system, may include a fluid circuit having an outdoor heat exchanger, an indoor heat exchanger, an expansion device disposed between the indoor heat exchanger and the outdoor heat exchanger, and one or more compressors circulating a working fluid (e.g., refrigerant or carbon dioxide) between the indoor heat exchanger and the outdoor heat exchanger. Efficient and reliable operation of one or more compressors is desirable to ensure that a climate control system in which the one or more compressors are installed is capable of effectively and efficiently providing cooling and/or heating effects as needed.

Disclosure of Invention

This section provides a general summary of the disclosure, and is not a comprehensive disclosure of its full scope or all of its features.

The present disclosure provides a compressor that may include a compression mechanism, a drive shaft, and an oil dosing member. The drive shaft drivingly engages the compression mechanism and includes a lubricant passage. The lubricant channel includes an inlet, a first outlet, and a second outlet. The inlet and the first and second outlets are spaced apart from each other in a direction parallel to the rotational axis of the drive shaft such that the first outlet is disposed vertically higher than the inlet and the second outlet is disposed vertically higher than the first outlet. The oil distribution member may be disposed within the lubricant channel and may be fixed relative to the drive shaft. The oil distribution member can include a lower body portion and an upper body portion, and can define a first path, a second path, and a third path. The first path may extend through a lower axial end of the oil distribution member and may receive lubricant flowing upward from an inlet of the lubricant channel. The second path may receive a first portion of lubricant from the first path through an inlet of the second path. The third path may receive a second portion of lubricant from the first path through an inlet of the third path. The inlets of the second and third paths may be disposed vertically higher than the first outlet. The lower body portion of the oil distribution member may separate the first path from the first outlet of the lubricant channel.

In some configurations of the compressor of the above paragraph, the inlets of the second and third paths are disposed between the first and second outlets in a direction parallel to the rotational axis of the drive shaft.

In some configurations of the compressor of any one or more of the above paragraphs, the first portion of lubricant and the second portion of lubricant are separated from each other at a location vertically above the first outlet.

In some configurations of the compressor of the above paragraph, the first portion of lubricant and the second portion of lubricant are vertically below the second outlet at a location that is separated from each other.

In some configurations of the compressor of any one or more of the above paragraphs, the oil dosing member includes a dividing wall separating the inlet of the second path from the inlet of the third path and restricting fluid communication between the second path and the third path.

In some configurations of the compressor of any one or more of the above paragraphs, the third path extends through an upper axial end of the upper body portion.

In some configurations of the compressor of any one or more of the above paragraphs, the first outlet of the lubricant passageway extends radially outwardly past the outer circumferential surface of the drive shaft.

In some configurations, the compressor of any one or more of the above paragraphs may include a bearing rotatably supporting the drive shaft.

In some configurations of the compressor of any one or more of the above paragraphs, the first outlet of the lubricant channel may be aligned with the bearing to provide lubricant to the bearing.

In some configurations of the compressor of any one or more of the above paragraphs, the second outlet of the lubricant passageway extends through an upper axial end of the drive shaft.

In some configurations of the compressor of any one or more of the above paragraphs, the upper axial end of the drive shaft is disposed within a hub of a scroll member of the compression mechanism.

In some configurations of the compressor of any one or more of the above paragraphs, the compression mechanism is a scroll compression mechanism including a first scroll member and a second scroll member.

In some configurations of the compressor of any one or more of the above paragraphs, the lubricant passage is an eccentric lubricant passage, and wherein the drive shaft further comprises a concentric lubricant passage extending through a lower axial end of the drive shaft and in fluid communication with the eccentric lubricant passage.

The present disclosure provides a compressor that may include a compression mechanism, a drive shaft, and an oil dosing member. The drive shaft drivingly engages the compression mechanism and includes a lubricant passage. The lubricant channel includes an inlet, a first outlet, and a second outlet. The inlet and the first and second outlets are spaced apart from each other in a direction parallel to the rotational axis of the drive shaft such that the first outlet is disposed vertically higher than the inlet and the second outlet is disposed vertically higher than the first outlet. The oil distribution member may be disposed within the lubricant channel and may be fixed relative to the drive shaft. The oil distribution member may define a first path, a second path, and a third path. The first path may extend through a lower axial end of the oil distribution member and may receive lubricant flowing upward from an inlet of the lubricant channel. The second path may receive a first portion of lubricant from the first path through an inlet of the second path and provide the first portion of lubricant to a first outlet of the lubricant channel. The third path may receive a second portion of the lubricant from the first path through an inlet of the third path and provide the second portion of the lubricant to a second outlet of the lubricant channel. The first portion of lubricant and the second portion of lubricant may be separated from each other at a position vertically higher than the first outlet.

In some configurations of the compressor in the above paragraph, the first portion of lubricant and the second portion of lubricant are vertically below the second outlet at a location that is separated from each other.

In some configurations of the compressor of any one or more of the above paragraphs, the lower body portion of the oil distribution member separates the first path from the first outlet of the lubricant channel.

In some configurations of the compressor of any one or more of the above paragraphs, the third path extends through an upper axial end of the oil distribution member.

In some configurations, the compressor of any one or more of the above paragraphs includes a bearing rotatably supporting the drive shaft.

In some configurations of the compressor of any one or more of the above paragraphs, the first outlet of the lubricant passageway is aligned with the bearing to provide lubricant to the bearing.

Further areas of applicability will become apparent from the description provided herein. The description and specific examples in this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

Drawings

The drawings described herein are for illustration purposes only of selected embodiments and not all possible embodiments and are not intended to limit the scope of the present disclosure.

FIG. 1 is a cross-sectional view of a compressor having a drive shaft and an oil distribution member according to the principles of the present disclosure;

FIG. 2 is a partial perspective view of the drive shaft and oil distribution member;

FIG. 3 is another partial perspective view of the drive shaft and oil distribution member;

FIG. 4 is an exploded perspective view of the drive shaft and oil distribution member;

FIG. 5 is a side view of the drive shaft and oil distribution member;

FIG. 6 is another partial perspective view of the drive shaft and oil distribution member;

FIG. 7 is yet another partial perspective view of the drive shaft and oil distribution member;

FIG. 8 is a perspective view of an oil distribution member; and

fig. 9 is another perspective view of the oil distribution member.

Corresponding reference characters indicate corresponding parts throughout the several views of the drawings.

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings.

The exemplary embodiments are provided to fully convey the scope to those skilled in the art. Numerous specific details are set forth, such as examples of specific components, devices, and methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to one skilled in the art that the exemplary embodiments may be embodied in many different forms without the use of specific details, and neither should be construed to limit the scope of the disclosure. In some exemplary embodiments, well-known processes, well-known device structures, and well-known techniques have not been described in detail.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein should not be construed as necessarily requiring their performance in the particular order discussed or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be employed.

When an element or layer is referred to as being "on," "engaged to," "connected to" or "coupled to" another element or layer, it can be directly on, engaged, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words (e.g., "between" and "pair" located directly between "and" adjacent "pair" directly adjacent, etc.) used to describe the relationship between the elements should be interpreted in a similar manner. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed objects.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

Spatially relative terms, such as "inner," "outer," "lower," "upper," and the like, may be used herein to facilitate the description of one element or feature relative to another element or feature as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" may include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1, a compressor 10 is provided, and the compressor 10 may include a sealed shell assembly 12, a first bearing housing assembly 14, a second bearing housing assembly 15, a motor assembly 16, a drive shaft 17, a compression mechanism 18, and a seal assembly 20. As will be described in greater detail below, the drive shaft 17 may include an oil distribution member 21 that divides and distributes oil flowing through the drive shaft 17 in a manner that provides a sufficient amount of oil to the various components of the compressor 10 at a plurality of motor speeds.

The shell assembly 12 may generally form a compressor housing, and the shell assembly 12 may include: a cylindrical case 22; an end cap 24, the end cap 24 being located at an upper end of the shell assembly 12; a transversely extending partition 26; and a base 28, the base 28 being located at a lower end of the shell assembly 12. The end cap 24 and the baffle 26 may generally define a discharge chamber 30. The drain fitting 32 may be attached to the housing assembly 12 at the opening of the end cap 24. A suction gas inlet fitting 34 may be attached to the housing assembly 12 at another opening and may be in communication with a suction chamber 35 defined by the housing 22 and the baffle 26. The diaphragm 26 may include a discharge passage 36 through the diaphragm 26 to provide communication between the compression mechanism 18 and the discharge chamber 30.

The first bearing housing assembly 14 may be secured to the shell 22 and may include a first bearing housing 38 and a first bearing 40. The first bearing housing 38 may house the first bearing 40 therein and may define an annular flat thrust bearing surface 42 on an axial end surface of the first bearing housing 38. The second bearing housing assembly 15 may be fixed to the housing 22 and may include a second bearing housing 39 and a second bearing 41. The second bearing housing 39 may accommodate the second bearing 41 in the second bearing housing 39.

The motor assembly 16 may include a motor stator 44 and a rotor 46. The motor stator 44 may be attached to the housing 22 (e.g., by press-fitting, staking, and/or welding). The rotor 46 may be attached to the drive shaft 17 (e.g., by press-fitting, staking, and/or welding). The drive shaft 17 may be driven by the rotor 46 and may be supported by the first bearing 40 and the second bearing 41 for rotation about the rotation axis R. In some configurations, the motor assembly 16 is a variable speed motor. In other configurations, the motor assembly 16 may be a multi-speed motor or a fixed speed motor.

Compression mechanism 18 may generally include an orbiting scroll 52, a non-orbiting scroll 54, and an Oldham coupling 56. The orbiting scroll 52 may include: end plate 58, end plate 58 having a spiral wrap 60 on an upper surface and a flat thrust surface 62 on a lower surface. The thrust surface 62 may engage with the annular flat thrust bearing surface 42 on the first bearing housing 38. A cylindrical hub 64 may protrude downwardly from thrust surface 62 and may have a drive bushing 66 rotatably disposed therein. A drive bearing (not shown) may be disposed within hub 64 and may surround drive bushing 66. The drive bushing 66 may include an inner bore in which the eccentric crankpin 50 of the drive shaft 17 is drivingly disposed. The flat surface of the crank pin 50 may drivingly engage the flat surface in a portion of the inner bore of the drive bushing 66 to provide a radially compliant drive arrangement. The oldham coupling 56 may engage the orbiting scroll 52 and the non-orbiting scroll 54 or the orbiting scroll 52 and the first bearing housing 38 to prevent relative rotation therebetween.

Non-orbiting scroll 54 may include an end plate 68 and a spiral wrap 70 projecting downwardly from end plate 68. The spiral wrap 70 may meshingly engage the spiral wrap 60 of the orbiting scroll 52 to create a series of moving fluid pockets. Throughout the compression cycle of compression mechanism 18, the fluid pockets defined by spiral wraps 60, 70 may decrease in volume as they move from a radially outer position (at suction pressure) to a radially intermediate position (at intermediate pressure) to a radially inner position (at discharge pressure).

The end plate 68 may include a discharge passage 72, an intermediate passage 74, and an annular recess 76. The discharge passage 72 communicates with one of the fluid chambers at a radially inner position and allows compressed working fluid (e.g., at discharge pressure) to flow into the discharge chamber 30. The intermediate passage 74 may provide fluid communication between one of the fluid chambers at a radially intermediate position and the annular recess 76. The annular recess 76 may receive the seal assembly 20 and cooperate with the seal assembly 20 to define an axial biasing chamber 78 therebetween. The offset chamber 78 receives fluid from the fluid chamber in the neutral position through the intermediate passage 74. The pressure differential between the intermediate pressure fluid in the biasing chamber 78 and the fluid in the suction chamber 35 applies an axial biasing force to the non-orbiting scroll 54, pushing the non-orbiting scroll 54 toward the orbiting scroll 52 to sealingly engage the scrolls 52, 54 with each other.

The drive shaft 17 may include a body 48 and an eccentric crankpin 50. A crank pin 50 may be provided at the first axial end 49 of the body 48. The drive shaft 17 may include a concentric lubricant channel 80 and an eccentric lubricant channel 82. The oil distribution member 21 may be disposed within the eccentric lubricant passage 82. The concentric lubricant passage 80 may extend through the second axial end 51 of the body 48 (i.e., the lower axial end of the drive shaft 17).

The eccentric lubricant passage 82 is in fluid communication with the concentric lubricant passage 80 and extends upwardly from the concentric lubricant passage 80 and through the distal axial end 53 of the crank pin 50 (i.e., the upper axial end of the drive shaft 17). The eccentric lubricant passage 82 may include an inlet 83, a first outlet 84, and a second outlet 86. An inlet 83 is provided at the lower end of the eccentric lubricant passage 82 and receives lubricant from the concentric lubricant passage 80. The first outlet 84 may extend radially outwardly from the eccentric lubricant passage 82 through the outer circumferential surface of the body 48 of the drive shaft 17 and may be aligned with the first bearing 40 (i.e., the radially extending longitudinal axis of the first outlet 84 may intersect the first bearing 40) such that the first outlet 84 may provide lubricant directly to the first bearing 40. In some configurations, the outer circumferential surface of the body 48 of the drive shaft 17 may include a groove 85 (fig. 2 and 3), the groove 85 being in fluid communication with the first outlet 84 to facilitate the distribution of lubricant along the first bearing 40. A second outlet 86 is formed in distal end 53 of crankpin 50 and provides lubricant to drive bushing 66 and drive bearings within hub 64 of orbiting scroll 52.

As the drive shaft 17 rotates, lubricant from the lubricant sump 81 (defined by the base 28 of the housing assembly 12) may be drawn into the concentric lubricant channel 80 and may flow into the eccentric lubricant channel 82 and through the first and second outlets 84, 86. An oil distribution member 21: (a) dividing the flow of lubricant through the eccentric lubricant passage 82 into a first portion and a second portion, (b) directing the first portion of lubricant in the eccentric lubricant passage 82 to the first outlet 84, and (c) directing the second portion of lubricant in the eccentric lubricant passage 82 to the second outlet 86.

Referring now to fig. 2-9, the oil distribution member 21 may be a generally cylindrical pin including a lower body portion 88 and an upper body portion 89. The oil distribution member 21 may be disposed within the eccentric lubricant passage 82. The outer circumferential surfaces 91, 93 of the lower and upper body portions 88, 89 may have a diameter substantially equal to the diameter of the eccentric lubricant passage 82. In some configurations, a retaining pin 90 (fig. 4 and 7) or another fastener may extend through a radially extending hole 92 in the crank pin 50 and into a retaining hole 94 (fig. 7 and 9) in the upper body portion 89 of the oil distribution member 21, thereby fixedly retaining the oil distribution member 21 within the eccentric lubricant channel 82. In some configurations, the oil distribution member 21 may be press fit within the eccentric lubricant channel 82.

The lower body portion 88 of the oil distribution member 21 defines a first path (first lubricant flow path) 96 (fig. 5, 7 and 9) and a second path (second lubricant flow path) 98 (fig. 4-6 and 8). The upper body portion 89 of the oil dispensing member 21 defines a third path (third lubricant flow path) 100 (fig. 5 and 7-9).

The first path 96 extends through the lower axial end 102 of the oil distribution member 21 and receives lubricant flowing upwardly through the eccentric lubricant passage 82 from the inlet 83 of the eccentric lubricant passage 82. The oil distribution member 21 may include a partition wall 104, the partition wall 104 being disposed at an upper end of the first path 96. As shown in fig. 5, the dividing wall 104 defines an inlet 106 of the second path 98 and an inlet 108 of the third path 100. A dividing wall 104 separates the second path 98 from the third path 100 and restricts fluid communication between the second path 98 and the third path 100. The inlets 106, 108 of the dividing wall 104 and the second and third paths 98, 100 are positioned vertically above the first outlet 84 of the eccentric lubricant passage 82 and vertically below the second outlet 86 of the eccentric lubricant passage 82.

As shown in fig. 6, the second path 98 extends downwardly from its inlet 106 at the dividing wall 104 to the first outlet 84. As shown in fig. 7, the third path 100 extends upwardly from its inlet 108 at the dividing wall 104 to the second outlet 86 (i.e., the third path 100 extends through the upper axial end 110 of the oil distribution member 21). The lower body portion 88 of the oil distribution member 21 separates the first path 96 from the first outlet 84 such that all oil entering the first path 96 flows upward through the first outlet 84. The dividing wall 104 and the upper body portion 89 separate the second path 98 from the second outlet 86 of the eccentric lubricant passage 82.

During operation of the compressor 10 (i.e., when the drive shaft 17 rotates), lubricant from the lubricant sump 81 flows into the concentric lubricant channel 80 and into the eccentric lubricant channel 82 via the inlet 83. The lubricant flows upward in the eccentric lubricant passage 82 from the inlet 83 and into the first path 96 of the oil distribution member 21. The dividing wall 104 divides the lubricant flow in the first path 96 into a first portion and a second portion. A first portion of the lubricant enters the second path 98 through the inlet 106 and flows downwardly through the second path 98 and to the first bearing 40 through the first outlet 84. A second portion of the lubricant enters the third path 100 through the inlet 108 and flows upward through the third path 100 and to the drive bushing 66 through the second outlet 86. After being separated from each other, the oil distribution member 21 keeps the first and second portions of lubricant separated from each other such that only the first portion of lubricant may flow through the first outlet 84 and only the second portion of lubricant may flow through the second outlet 86.

In some configurations, the volumes of the first and second portions of lubricant may be equal (i.e., the dividing wall 104 directs one half of the lubricant from the first path 96 to the second path 98 and the other half of the lubricant from the first path 96 to the third path 100). In other configurations, the dividing walls 104 and inlets 106, 108 of the second and third paths 98, 100 may be sized and/or positioned to provide more than half of the lubricant from the first path 96 to one of the second and third paths 98, 100 (i.e., such that one of the first and second portions of lubricant has a greater volume than the other of the first and second portions). For example, in some configurations, the divider wall 104 may be angled relative to the longitudinal axis of the eccentric lubricant channel 82 to direct more lubricant into one of the second and third paths 98, 100 than the other. Additionally or alternatively, the divider wall 104 may be moved laterally (i.e., left or right relative to the position shown in fig. 5) to direct more lubricant into one of the second and third paths 98, 100 than the other.

As described above, the dividing walls 104 and inlets 106, 108 of the second and third paths 98, 100 are positioned vertically higher than the first outlet 84 of the eccentric lubricant passage 82 and vertically lower than the second outlet 86 of the eccentric lubricant passage 82. More specifically, when the drive shaft 17 and motor assembly 16 are operating at a minimum operating speed for the particular compressor 10 in which the oil distribution member 21 is installed, the lower tip of the partition wall 104 may be disposed at or vertically above the parabolic curve formed by the lubricant in the eccentric lubricant passage 82. In this manner, at all operating speeds of a given compressor, gravity will force a first portion of lubricant through the second path 98 and centrifugal force will force a second portion of lubricant through the third path 100.

By dividing the flow of lubricant through the first path 96 into a first portion and a second portion at a position vertically higher than the first outlet 84 and keeping the first portion and the second portion separated from each other, the oil dosing member 21 provides a sufficient amount of oil to the first outlet 84 and the second outlet 86 regardless of the compressor operating conditions such as the rotational speed of the drive shaft 17, the oil level in the sump 81, the oil quality (viscosity, dilution, temperature, etc.), the bearing clearance (clearance between the drive shaft 17 and the first bearing 40), the refrigerant temperature, or the pressure above the oil level in the sump 81, etc.

In some configurations, the lower body portion 88 of the oil distribution member 21 may include one or more support members or protrusions 112 (fig. 5, 7, and 9) that extend into the first path 96. The protrusion 112 may help to keep the lower body portion 88 properly positioned within the eccentric lubricant channel 82 to keep the first path 96 fluidly separated from the first outlet 84.

Although not shown in the figures, in some configurations, holes may extend radially outward from concentric lubricant passages 80 to provide lubricant to second bearing 41.

In some configurations, the compressor 10 may include a positive pump to facilitate the flow of lubricant through the lubricant passages 80, 82.

Although the compression mechanism 18 is described above as a scroll compression mechanism having an orbiting scroll and a non-orbiting scroll, it will be appreciated that the compression mechanism 18 may be other types of compression mechanisms including, for example, a scroll mechanism that rotates (i.e., has two orbiting scrolls), a reciprocating compression mechanism (i.e., has a piston that reciprocates within a cylinder), a rotary vane compression mechanism (i.e., has a rotor that rotates within a cylinder), or a screw compression mechanism (e.g., has a pair of intermeshing screws).

The foregoing description of the embodiments has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Even if not specifically shown or described, the individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but rather are interchangeable as applicable and can be used in selected embodiments. The same thing can also be varied in a number of ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.

Claims

1. A compressor, comprising:

a compression mechanism;

a drive shaft drivingly engaged with the compression mechanism and including a lubricant passageway, wherein the lubricant passageway includes an inlet, a first outlet, and a second outlet, and wherein the inlet and the first outlet and the second outlet are spaced apart from each other in a direction parallel to a rotational axis of the drive shaft such that the first outlet is disposed vertically higher than the inlet and the second outlet is disposed vertically higher than the first outlet; and

an oil distribution member disposed within the lubricant passage and fixed relative to the drive shaft,

wherein:

the oil distribution member includes a lower body portion and an upper body portion and defines a first path, a second path and a third path,

the first path extends through a lower axial end of the oil distribution member and receives lubricant flowing upward from the inlet of the lubricant channel,

the second path receives a first portion of the lubricant from the first path through an inlet of the second path,

the third path receives a second portion of the lubricant from the first path through an inlet of the third path,

the inlet of the second path and the inlet of the third path are disposed vertically higher than the first outlet, and

the lower body portion of the oil distribution member separates the first path from the first outlet of the lubricant channel.

2. The compressor of claim 1, wherein the inlet of the second path and the inlet of the third path are disposed between the first outlet and the second outlet in a direction parallel to a rotational axis of the drive shaft.

3. The compressor of claim 1, wherein said first portion of said lubricant and said second portion of said lubricant are separated from each other at a location vertically above said first outlet.

4. A compressor according to claim 3, wherein the location at which the first and second portions of lubricant are separated from each other is vertically lower than the second outlet.

5. The compressor of claim 1, wherein the oil dosing member includes a dividing wall separating the inlet of the second path from the inlet of the third path and restricting fluid communication between the second path and the third path.

6. The compressor of claim 1, wherein the third path extends through an upper axial end of the upper body portion.

7. The compressor of claim 1, wherein said first outlet of said lubricant channel extends radially outwardly through an outer circumferential surface of said drive shaft.

8. The compressor of claim 7, further comprising a bearing rotatably supporting said drive shaft, wherein said first outlet of said lubricant passage is aligned with said bearing to provide lubricant to said bearing.

9. The compressor of claim 7, wherein said second outlet of said lubricant passage extends through an upper axial end of said drive shaft.

10. The compressor of claim 9, wherein said upper axial end of said drive shaft is disposed within a hub of a scroll member of said compression mechanism.

11. The compressor of claim 1, wherein the compression mechanism is a scroll compression mechanism including a first scroll member and a second scroll member.

12. The compressor of claim 1, wherein the lubricant channel is an eccentric lubricant channel, and wherein the drive shaft further comprises a concentric lubricant channel extending through a lower axial end of the drive shaft and in fluid communication with the eccentric lubricant channel.

13. A compressor, comprising:

a compression mechanism;

an oil dosing member disposed within the lubricant passage and fixed relative to the drive shaft, the oil dosing member defining a first path, a second path and a third path,

wherein:

the second path receives a first portion of the lubricant from the first path through an inlet of the second path and provides the first portion of the lubricant to the first outlet of the lubricant channel,

the third path receives a second portion of the lubricant from the first path through an inlet of the third path and provides the second portion of the lubricant to the second outlet of the lubricant channel, and

the first portion of the lubricant and the second portion of the lubricant are separated from each other at a position vertically higher than the first outlet.

14. The compressor of claim 13, wherein said location at which said first portion of said lubricant and said second portion of said lubricant are separated from each other is vertically lower than said second outlet.

15. The compressor of claim 13, wherein a lower body portion of said oil distribution member separates said first path from said first outlet of said lubricant channel.

16. The compressor of claim 13, wherein the oil dosing member includes a dividing wall separating the inlet of the second path from the inlet of the third path and restricting fluid communication between the second path and the third path.

17. The compressor of claim 13, wherein the third path extends through an upper axial end of the oil distribution member.

18. The compressor of claim 17, wherein said first outlet of said lubricant channel extends radially outwardly through an outer circumferential surface of said drive shaft.

19. The compressor of claim 18, further comprising a bearing rotatably supporting said drive shaft, wherein said first outlet of said lubricant channel is aligned with said bearing to provide lubricant to said bearing.

20. The compressor of claim 19, wherein said second outlet of said lubricant channel extends through an upper axial end of said drive shaft.

21. The compressor of claim 20, wherein said upper axial end of said drive shaft is disposed within a hub of a scroll member of said compression mechanism.

22. The compressor of claim 13, wherein said compression mechanism is a scroll compression mechanism including a first scroll member and a second scroll member.

23. The compressor of claim 13, wherein the lubricant channel is an eccentric lubricant channel, and wherein the drive shaft further comprises a concentric lubricant channel extending through a lower axial end of the drive shaft and in fluid communication with the eccentric lubricant channel.