JP2007138807A - Scroll compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scroll compressor which can achieve the improvement in productibility, and cost reduction in manufacturing of the compressor by optimizing the flow rate of a lubricating oil. <P>SOLUTION: A scroll unit (40) which carries out a series of processes such as suction, compression and discharge of working fluid containing the lubricating oil comprises a movable scroll (41) which is rotatably supported in a rotation shaft (22) via the other bearing (52), and revolutes around the axis line of a fixed scroll (44), a first lubricating oil passage (93) bored in the fixed scroll to connect between an oil storage chamber (90) and the movable scroll, and supply the lubricating oil in the oil storage chamber into the movable scroll, and a second lubricating oil passage (96) bored in the movable scroll, opened/closed according to the rotation of the movable scroll to connect betweem the first lubricating oil passage and the other bearing, and supply the lubricating oil in the first lubricating oil passage into the other bearing. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a scroll compressor, and more particularly to a scroll compressor incorporated in a refrigeration circuit of an air conditioning system.

  This type of scroll compressor includes a scroll unit that performs a series of processes of sucking, compressing and discharging refrigerant as a working fluid. Specifically, this unit includes fixed and movable scrolls that mesh with each other, and the movable scroll makes a turning motion with respect to the fixed scroll. Thereby, the volume of the space formed by each scroll is reduced, and the above-described series of processes is performed.

Further, this refrigerant usually contains lubricating oil. Lubricating oil in the refrigerant not only lubricates the sliding surfaces and bearings in the compressor, but also functions as a seal for the sliding surfaces. However, when this lubricating oil circulates in the refrigeration circuit, it becomes a factor of reducing the cooling capacity of the refrigeration circuit.
For this reason, this type of compressor is provided with a lubricating oil separation device (see, for example, Patent Document 1). The apparatus separates the refrigerant discharged from the scroll unit into refrigerant and lubricating oil. The separated lubricating oil is decompressed by an orifice tube, an oil flow rate adjusting valve or the like, and used for lubricating the bearing or the like via an oil line.
Japanese Patent Laid-Open No. 5-223074

By the way, current compressors for refrigeration and air conditioning are required to save power as a countermeasure against global warming, and it is necessary to efficiently supply the lubricating oil to bearings and lip seals.
However, in the above-described conventional technology, the lubricating oil is supplied to the bearing or the like using an orifice tube, an oil flow rate adjusting valve, etc., which complicates the structure of the compressor. For example, the oil line is clogged with lubricating oil. There is a concern that lubrication oil cannot be supplied. Moreover, the problem of the fall of the productivity of a compressor and the raise of manufacturing cost will also be caused.

  The present invention has been made in view of such problems, and a scroll compressor capable of achieving improvement in compressor productivity and reduction in manufacturing cost while optimizing the flow rate of lubricating oil. The purpose is to provide.

  In order to achieve the above object, a scroll compressor according to claim 1 is provided with a discharge chamber for a working fluid containing a lubricating oil, a housing having a discharge port connected to the discharge chamber, and a housing extending in the housing. A rotary shaft that is rotatably supported through a bearing, a scroll unit that is housed in the housing and is driven by the rotary shaft to perform a series of processes of suction, compression, and discharge of the working fluid, and is housed in the housing A separation chamber positioned between the discharge chamber and the discharge port, and an oil storage chamber for storing the lubricating oil separated below the separation chamber, and separating the lubricating oil from the working fluid in the separation chamber The scroll unit is rotatably supported on the rotating shaft via another bearing, and the scroll unit revolves around the axis of the fixed scroll, and the fixed scroll. A first lubricating oil path that is drilled and connects between the oil storage chamber and the movable scroll to supply lubricating oil in the oil storage chamber to the movable scroll, and is opened in the movable scroll and opens and closes according to the rotation of the movable scroll. And a second lubricating oil path that connects between the first lubricating oil path and another bearing and supplies the lubricating oil in the first lubricating oil path to the other bearing. .

According to a second aspect of the present invention, the scroll unit includes spiral wraps erected on the fixed scroll substrate and the movable scroll substrate, respectively, and the first lubricating oil path is provided on the fixed scroll substrate and the spiral wrap. The second lubricating oil path is formed in the movable scroll substrate.
Furthermore, in the invention according to claim 3, the housing is opened and opened according to the rotation of the movable scroll, and the second lubricating oil path and one bearing are connected to each other in the second lubricating oil path. It is further characterized by further including a third lubricating oil passage for supplying the lubricating oil of one to one bearing.

Furthermore, in the invention according to claim 4, the scroll unit includes spiral wraps erected on the fixed scroll substrate and the movable scroll substrate, respectively, and the first lubricating oil path is formed in the fixed scroll substrate. The second lubricating oil path is formed in the spiral wrap and the substrate of the movable scroll.
According to a fifth aspect of the present invention, the scroll unit includes spiral wraps erected on the fixed scroll substrate and the movable scroll substrate, respectively, and the first lubricating oil path is provided on the fixed scroll substrate and the spiral wrap. The second lubricating oil path is formed in the spiral wrap of the movable scroll and the substrate.

  Therefore, according to the scroll compressor according to the first aspect of the present invention, the lubricating oil separating apparatus separates the working fluid discharged from the scroll unit into the working fluid and the lubricating oil, and the separated lubricating oil is: It is supplied to other bearings that support the movable scroll according to the turning motion of the movable scroll with respect to the fixed scroll. Specifically, a movable scroll is interposed in the middle of an oil line connecting the oil storage chamber and another bearing, and the second lubricating oil path formed in the movable scroll is a surface between the movable scroll and the fixed scroll. It is opened and closed by sliding. The first lubricating oil path drilled in the fixed scroll overlaps the second lubricating oil path only once when the movable scroll makes one rotation, and at this time, lubrication is performed from the oil storage chamber toward the other bearing. Oil is supplied. Therefore, since the flow rate of the lubricating oil supplied to the other bearings is proportional to the rotational speed of the rotating shaft, the flow rate of the lubricating oil that matches each of the rotating shaft at low and high rotations can be optimized. .

In addition, since an orifice tube, an oil flow rate adjusting valve, and the like are not required as compared with the prior art, it is possible to improve the productivity of the compressor and reduce the manufacturing cost.
Further, according to the inventions of claims 2, 4 and 5, since the method of supplying the lubricating oil to the other bearing is simplified, the diameter of the oil line connecting the oil storage chamber and the other bearing is reduced. The oil line can be formed in a large size, and the clogging of the lubricating oil in this oil line and the decrease in productivity are prevented. Further, since the oil supply amount of the oil line is set to the minimum necessary level, there is no concern about the cooling capacity and the durability of the scroll unit.

  According to the third aspect of the present invention, the third lubricating oil path overlaps the second lubricating oil path only once when the movable scroll makes one rotation, and at this time, the first lubricating oil is supplied from the oil storage chamber to the first lubricating oil. Lubricating oil is supplied toward one bearing that supports the rotating shaft via the oil path. As described above, the flow rate of the lubricating oil supplied to one bearing is also optimized. As a result, a bearing having a smaller capacity than that of the conventional bearing can be used for the one bearing, which further increases the manufacturing cost of the compressor. In addition to cost reduction, the compressor can be made smaller and lighter by saving space.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a scroll compressor according to a first embodiment. The compressor 4 is incorporated in the refrigeration circuit 2 of the air conditioning system. Specifically, the compressor 4, the condenser 6, the receiver 8, the expansion valve 10 and the evaporator 12 are sequentially arranged in the circulation path of the refrigeration circuit 2, and the compressor 4 sucks refrigerant from the return path of the circulation path, This refrigerant is compressed and discharged toward the forward path of the circulation path. This refrigerant contains lubricating oil, and this lubricating oil not only lubricates the bearings and various sliding surfaces in the compressor 4 but also functions to seal the sliding surfaces.

The compressor 4 includes a housing 14, which is formed of a drive casing 16 and a compression casing 18, and the casings 16 and 18 are flange-coupled to each other via a plurality of connecting bolts 20.
A rotary shaft 22 is arranged in the drive casing 16, and the rotary shaft 22 has a large-diameter end portion 24 positioned on the compression casing 18 side and a small-diameter shaft portion 26 protruding from the drive casing 16 via a lip seal 32. And have. The large diameter end portion 24 is rotatably supported by the drive casing 16 via a needle bearing (one bearing) 28, and the small diameter shaft portion 26 is rotatably supported by the drive casing 16 via a ball bearing 30.

  A drive pulley 36 incorporating an electromagnetic clutch 34 is attached to the protruding end of the small diameter shaft portion 26, and this drive pulley 36 is rotatably supported by the drive casing 16 via a bearing 38. In addition, the power of the engine of the vehicle is transmitted to the drive pulley 36 via a drive belt (not shown), and the rotation of the drive pulley 36 can be transmitted to the rotary shaft 22 via the electromagnetic clutch 34. Accordingly, when the electromagnetic clutch 34 is turned on while the engine is being driven, the rotary shaft 22 rotates integrally with the drive pulley 36.

  Here, the compression casing 18 has a cup shape having a bottomed portion, and a scroll unit 40 is accommodated in the compression casing 18. The scroll unit 40 includes a movable scroll 41 and a fixed scroll 44. The movable scroll 41 includes a substrate 42, and a spiral wrap 43 extending toward the substrate 45 of the fixed scroll 44 is integrally formed on the substrate 42. Is formed. On the other hand, a spiral wrap 46 that extends toward the substrate 42 of the movable scroll 41 is also integrally formed on the substrate 45 of the fixed scroll 44. The substrates 42, 45 and the spiral wraps 43, 46 cooperate with each other to form a compression chamber 47, and the compression chambers 47 are spiral wraps 43, 46 as the movable scroll 41 rotates with respect to the fixed scroll 44. It moves toward the center from the radially outer periphery side, and at this time, its volume decreases.

  The movable scroll 41 and the large-diameter end portion 24 of the rotary shaft 22 are connected to each other via a crank pin 48, an eccentric bush 50, and a needle bearing (other bearing) 52 in order to impart a turning motion to the movable scroll 41 described above. The rotation of the movable scroll 41 is prevented by a ball-type orbiting thrust bearing 54 disposed between the movable scroll 41 and the drive casing 16. In the figure, reference numeral 56 indicates a counterweight, and this counterweight 56 is attached to the eccentric bush 50.

  The fixed scroll 44 is fixed in the compression casing 18 via a plurality of fixing bolts (not shown), and a discharge chamber 58 is formed between the fixed scroll 44 and the bottomed portion of the compression casing 18. More specifically, the space on the back side of the fixed scroll 44 is partitioned vertically through the partition wall 60, and the partition wall 62 projects from the bottom portion of the compression casing 18 toward the fixed scroll 44. Yes. And the discharge chamber 58 and the oil storage chamber 90 are each formed by these partition walls 60 and 62 being faced | matched.

The fixed scroll 44 has a discharge hole 64 that allows the compression chamber 47 and the discharge chamber 58 to communicate with each other. The discharge hole 64 is opened and closed by a discharge valve 66. The discharge valve 66 is attached to the fixed scroll 44 through a bolt 68 together with a stopper plate.
On the other hand, a suction chamber 70 is secured between the peripheral wall of the compression casing 18 and the scroll unit 40, and the suction chamber 70 is connected to the return path of the circulation path described above. In addition, a discharge port 72 is formed on the outer surface of the compression casing 18, specifically, above the bottomed portion, and this discharge port 72 is connected to the forward path of the circulation path, while being connected via a lubricating oil separator 74. The discharge chamber 58 is also connected.

  More specifically, the lubricating oil separator 74 is disposed between the discharge chamber 58 and the discharge port 72 in the compression casing 18. And it has the bulging part 76 integrally formed in the bottomed part of the compression casing 18, and this bulging part 76 comprises the column shape which protruded in the discharge chamber 58, and the compression casing 18 from the partition wall 62 is formed. It extends upward to reach the peripheral wall. A hole 78 is formed in the bulging portion 76, and the opening end of the hole 78 is closed by a plug 80.

  The lower portion of the hole 78 is formed as a separation chamber 82, and a separation tube 84 is disposed on the upper portion of the separation chamber 82. The separation tube 84 has a large-diameter portion at the upper end, and the large-diameter portion is press-fitted into the hole 78 and fixed in the hole 78, that is, the separation chamber 82. Further, a retaining ring 86 is disposed at the upper end of the separation tube 84, and the retaining ring 86 prevents the separation tube 84 from coming off from the separation chamber 82. An annular space is formed between the inner peripheral surface of the separation chamber 82 and the outer peripheral surface of the small-diameter portion of the separation tube 84, and the bulging portion 76 communicates the discharge chamber 58 with this annular space. Two refrigerant ejection holes 88 are formed vertically, and the hole axis of these refrigerant ejection holes 88 is formed along the outer peripheral surface of the small diameter portion of the separation tube 84.

  The oil storage chamber 90 formed on the lower side of the partition wall 62 communicates with the separation chamber 82 through an oil hole 92 formed in the partition wall 62. In the fixed scroll 44 of the present embodiment, a fixed side path (first lubricating oil) that connects the oil storage chamber 90 and the movable scroll 41 and supplies the lubricating oil in the oil storage chamber 90 to the movable scroll 41 is connected. Path) 93 is drilled. More specifically, the fixed-side path 93 is formed along the axial direction of the rotating shaft 22, and is formed on the substrate-side communication path 94 formed on the outer peripheral side of the substrate 45 and on the outer peripheral side of the spiral wrap 46. The lap side communication path 95 is formed up to the front of the lap 46.

  On the other hand, in the movable scroll 41 of the present embodiment, a movable side path (for connecting the fixed side path 93 and the needle bearing 52 to supply the lubricating oil in the fixed side path 93 to the needle bearing 52 ( A second lubricating oil path) 96 is formed. More specifically, the movable side path 96 is configured by a bent substrate side communication path 97 that extends from the front surface to the back surface of the substrate 42, and the substrate side communication path 97 is opened and closed according to the rotation of the movable scroll 41. The That is, the valve is opened only when it coincides with the opening of the lap side communication passage 95, and is closed at other times.

The substrate-side communication path 97 is formed by combining the drilling along the axial direction of the rotating shaft 22 and the drilling along the direction orthogonal to the axis from the outer peripheral end of the substrate 42. The outer peripheral end portion of 42 is closed with a plug 100.
According to the compressor 4 described above, the movable scroll 41 rotates without rotating as the rotary shaft 22 rotates. This orbiting movement of the movable scroll 41 causes a suction process of the refrigerant from the suction chamber 70 into the compression chamber 47 and a compression and discharge process of the sucked refrigerant. As a result, the high-pressure refrigerant is discharged from the compression chamber 47 to the discharge port. 64 is discharged into the discharge chamber 58.

The compressed refrigerant in the discharge chamber 58 is separated from the lubricating oil by the action of centrifugal force and gravity before passing through the refrigerant jet hole 88 and reaching the discharge port 72, and is introduced to the oil storage chamber 90 through the oil hole 92. Stored.
Here, since the oil storage chamber 90 is always in communication with the separation chamber 82, the internal pressure thereof corresponds to the discharge pressure and is higher than the pressure on the back side of the movable scroll 41. Therefore, the lubricating oil in the fixed side path 93 formed in the fixed scroll 44 receives pressure corresponding to the discharge pressure and reaches the boundary with the movable side path 96, that is, the front surface of the substrate 42 of the movable scroll 41. Has reached. The fixed-side path 93 overlaps the movable-side path 96 only once when the movable scroll 41 rotates once, and at this time, lubricating oil is supplied from the oil storage chamber 90 toward the needle bearing 52. Therefore, the flow rate of the lubricating oil supplied to the needle bearing 52 is proportional to the rotational speed of the rotating shaft 22 under a constant discharge pressure, in other words, the flow rate increases as the rotational speed increases.

As described above, according to the compressor 4 of the first embodiment, the lubricating oil separating device 74 separates the refrigerant discharged from the scroll unit 40 into the refrigerant and the lubricating oil, and the separated lubricating oil is Since the needle bearing 52 is lubricated in accordance with the orbiting motion of the movable scroll 41, the flow rate of the lubricating oil can be optimized in accordance with the low rotation and the high rotation of the rotary shaft 22, respectively.
In addition, an orifice tube, an oil flow rate adjusting valve, and the like are not required as compared with the conventional case, and it is possible to improve the productivity of the compressor and reduce the manufacturing cost.

  Further, since the method of supplying the lubricating oil to the needle bearing 52 is simplified, it is possible to increase the diameter of the oil line connecting the oil storage chamber 90 and the needle bearing 52, thereby improving workability. Clogging of the lubricating oil in the oil line is prevented, and no filter is required for this oil line. Furthermore, since the oil line composed of the fixed side path 93 and the movable side path 96 is set to the minimum necessary level, there is no concern about the cooling capacity of the refrigeration circuit 2 and the durability of the scroll unit 40.

The present invention is not limited to the first embodiment described above, and various modifications are possible. The compressors of the second to fourth embodiments will be described below with reference to FIGS. In the description of the second to fourth embodiments, the same members and parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.
First, as shown in FIG. 2, in the compressor 4A of the second embodiment, the rotation of the movable scroll 41 is prevented by the Oldham coupling mechanism 54A. The movable scroll 41 is connected to the back side of the substrate 42. The drive casing 16A has a portion that is always in surface contact.

  A fixed-side path (first lubricating oil path) 93 </ b> A drilled in the fixed scroll 44 of this embodiment includes a substrate-side communication path 94 </ b> A formed on the outer peripheral side of the substrate 45 and the outer periphery of the spiral wrap 46. The lap side communication path 95A is formed on the side up to the front of the wrap 46. In addition, the movable side path (second lubricating oil path) 96 </ b> A formed in the movable scroll 41 of the present embodiment is configured by a substrate side communication path 97 </ b> A formed on the outer peripheral side of the substrate 42. The movable side path 96A is opened and closed according to the rotation of the movable scroll 41, and is opened only when it coincides with the opening of the lap side communication path 95A, and is closed at other times.

  On the other hand, in the present embodiment, in the drive casing 16A, the movable side path 96A is connected to the needle bearing 28 and the lip seal 32, and the lubricating oil in the movable side path 96A is supplied to the needle bearing 28 and the lip seal 32. A housing-side path (third lubricating oil path) 99 to be supplied to is provided. Specifically, the housing-side path 99 is formed along the axial direction of the rotary shaft 22 on the outer peripheral side of the drive casing 16A, and then toward the central portion of the drive casing 16A along the direction orthogonal to the axis. ing. The housing side path 99 is opened and closed according to the rotation of the movable scroll 41, and is opened only when it coincides with the opening of the substrate side communication path 97A, and is closed at other times. The housing-side path 99 is formed by combining the drilling along the axial direction of the rotary shaft 22 and the drilling along the direction perpendicular to the axis from the outer peripheral end of the drive casing 16A. The outer peripheral end portion of the casing 16 </ b> A is closed with a plug 100.

  The lubricating oil in the fixed-side path 93A receives a high pressure corresponding to the discharge pressure and reaches the front surface of the substrate 42 of the movable scroll 41. The fixed-side path 93A is used when the movable scroll 41 makes one rotation. It overlaps the movable side path 96A only once. At the same time, in this case, it also overlaps the housing-side path 99, and at this time, lubricating oil is supplied from the oil storage chamber 90 toward the needle bearing 28 and the lip seal 32. Therefore, according to the second embodiment, in addition to the effects shown in the first embodiment, the flow rate of the lubricating oil supplied to the needle bearing 28 is optimized, so that the needle bearing 28 is lubricated. It becomes possible to use a bearing having a smaller capacity than the conventional one, which was insufficient. As a result, in addition to further reducing the manufacturing cost of the compressor, it is possible to achieve a reduction in size and weight of the compressor by space saving.

Subsequently, as shown in FIG. 3, the fixed-side path (first lubricating oil path) 93 </ b> B of the compressor 4 </ b> B of the present embodiment is bent to the bent board-side communication path 94 </ b> B reaching the front from the back of the board 45. Configured. Note that the outer peripheral end portion of the substrate 45 is closed by a plug 100.
On the other hand, the movable side path (second lubricating oil path) 96 </ b> B of the present embodiment is formed along the axial direction of the rotary shaft 22, and a lap side communication path 98 formed on the center side of the spiral wrap 43. The substrate side communication path 97B is formed on the center side of the substrate 42 up to the back surface of the substrate 42. This movable side path 96B is opened and closed according to the rotation of the movable scroll 41, and is opened only when it coincides with the opening of the substrate side communication path 94B, and is closed at other times.

The fixed side path 93B overlaps the movable side path 96B only once when the movable scroll 41 rotates once, and at this time, the lubricating oil is supplied from the oil storage chamber 90 toward the needle bearing 52. Therefore, according to the third embodiment, the needle bearing 52 is lubricated only by drilling the fixed side path 93B and the movable side path 96B in the existing scroll unit.
In this embodiment, the fixed-side path 93B is further extended toward the center side along the direction orthogonal to the axis of the rotating shaft 22 of the substrate-side communication path 94B, and is formed on the center side of the spiral wrap 46. The lap side communication path formed up to the front surface of the lap 46 may be connected, while the movable side path 96B may be constituted by a substrate side communication path facing the lap side communication path.

  Furthermore, as shown in FIG. 4, the fixed side path (first lubricating oil path) 93 </ b> C of the compressor 4 </ b> C of the present embodiment includes a bent board side communication path 94 </ b> C that reaches the front from the back surface of the board 45, and The wrap side communication path 95 </ b> C is formed on the center side of the spiral wrap 46 so as to reach the front of the stepped portion of the wrap 46. Note that the outer peripheral end portion of the substrate 45 is closed by a plug 100.

  On the other hand, the movable side path (second lubricating oil path) 96 </ b> C of the present embodiment is formed along the axial direction of the rotating shaft 22, and the front surface of the stepped portion of the wrap 43 on the center side of the spiral wrap 43. Lap side communication path 98C formed on the center side of the substrate 42 and a substrate side communication path 97C formed to reach the back surface of the substrate 42. The movable side path 96C is a rotation of the movable scroll 41. The valve is opened and closed in response to the opening of the lap side communication passage 95C, and is closed at other times.

  The fixed side path 93 </ b> C overlaps the movable side path 96 </ b> C only once when the movable scroll 41 rotates once, and at this time, lubricating oil is supplied from the oil storage chamber 90 toward the needle bearing 52. Therefore, according to the fourth embodiment, in view of the thickness of each of the spiral wraps 43 and 46 arranged on the center side, it is easier to drill the fixed side path 93C and the movable side path 96C than the third embodiment. become.

Although the description of each embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.
For example, in each of the above embodiments, an example embodied in a vehicle air conditioner is shown. However, the compressor of the present invention can be applied to cooling and refrigeration systems in general.

It is sectional drawing which showed the scroll compressor which concerns on 1st Example. It is sectional drawing which showed the scroll compressor which concerns on 2nd Example. It is sectional drawing which showed the scroll compressor which concerns on 3rd Example. It is sectional drawing which showed the scroll compressor which concerns on 4th Example.

Explanation of symbols

4, 4A, 4B, 4C Scroll compressor 14 Housing 22 Rotating shaft 28 Bearing (one bearing)
40 scroll unit 41 movable scroll 42 substrate 43 spiral wrap 44 fixed scroll 45 substrate 46 spiral wrap 52 bearing (other bearing)
58 Discharge chamber 72 Discharge port 74 Lubricating oil separating device 82 Separating chamber 90 Oil storage chamber 93, 93A, 93B, 93C Fixed side path (first lubricating oil path)
94, 94A, 94B, 94C Substrate side communication path 95, 95A, 95C Lap side communication path 96, 96A, 96B, 96C Movable side path (second lubricating oil path)
97, 97A, 97B, 97C Substrate side communication path 98, 98C Lap side communication path 99 Housing side path (third lubricating oil path)

Claims (5)

A housing including a discharge chamber for working fluid containing lubricating oil, and a discharge port connected to the discharge chamber;
A rotating shaft extending through the housing and rotatably supported by the housing via a bearing;
A scroll unit housed in the housing and driven by the rotating shaft to perform a series of processes of suction, compression and discharge of working fluid;
A separation chamber housed in the housing and positioned between the discharge chamber and the discharge port; and an oil storage chamber for storing lubricating oil separated below the separation chamber; A lubricating oil separating device for separating the lubricating oil from the working fluid;
The scroll unit is
A movable scroll that is rotatably supported by the rotary shaft via another bearing and revolves around the axis of the fixed scroll; and
A first lubricating oil path that is drilled in the fixed scroll and connects between the oil storage chamber and the movable scroll to supply lubricating oil in the oil storage chamber to the movable scroll;
The movable scroll is perforated and opened and closed in accordance with the rotation of the movable scroll, and connects the first lubricating oil path and the other bearing to remove the lubricating oil in the first lubricating oil path. And a second lubricating oil path to be supplied to the other bearing. The scroll unit includes spiral wraps erected on the fixed scroll substrate and the movable scroll substrate,
2. The first lubricating oil path is formed in the fixed scroll substrate and the spiral wrap, and the second lubricating oil path is formed in the movable scroll substrate. The scroll compressor described in 1.   Drilled in the housing, opened and closed according to the rotation of the movable scroll, and connected between the second lubricating oil path and the one bearing, the lubricating oil in the second lubricating oil path is The scroll compressor according to claim 2, further comprising a third lubricating oil path to be supplied to one bearing. The scroll unit includes spiral wraps erected on the fixed scroll substrate and the movable scroll substrate,
2. The first lubricating oil path is formed in a substrate of the fixed scroll, and the second lubricating oil path is formed in a spiral wrap and a substrate of the movable scroll. The scroll compressor described in 1. The scroll unit includes spiral wraps erected on the fixed scroll substrate and the movable scroll substrate,
The first lubricating oil path is formed in the fixed scroll substrate and the spiral wrap, and the second lubricating oil path is formed in the movable scroll spiral wrap and the substrate. The scroll compressor according to claim 1.

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