CN204591668U - Scroll compressor and drive shaft and unload bushing for scroll compressor - Google Patents
Scroll compressor and drive shaft and unload bushing for scroll compressor Download PDFInfo
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- CN204591668U CN204591668U CN201520251170.7U CN201520251170U CN204591668U CN 204591668 U CN204591668 U CN 204591668U CN 201520251170 U CN201520251170 U CN 201520251170U CN 204591668 U CN204591668 U CN 204591668U
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Abstract
The utility model relates to a scroll compressor, including the compression mechanism that is constructed into compressing working fluid and construct into the drive shaft that can drive compression mechanism. The drive shaft includes an eccentric crank pin with an unload bushing disposed between the compression mechanism and the eccentric crank pin such that the eccentric crank pin drives the compression mechanism via the unload bushing to achieve radial flexibility of the compression mechanism. The eccentric crank pin includes an eccentric crank pin engaging portion in contact with and relatively displaced from the unload liner, and the unload liner includes an unload liner engaging portion in contact with and relatively displaced from the eccentric crank pin. At least a portion of at least one of the eccentric crank pin mating portion and the unload liner mating portion is provided with a wear layer. The utility model discloses still relate to a be provided with the uninstallation bush of wearing layer and have the drive shaft that is provided with the eccentric crank pin of wearing layer for scroll compressor.
Description
Technical field
The utility model relate to a kind of scroll compressor and for scroll compressor live axle and unloading lining.
Background technique
The content of this part provide only the background information relevant to the disclosure, and it may not form prior art.
Scroll compressor usually have comprise determine scroll element and dynamic scroll element the compressing mechanism that compresses is carried out to working fluid (such as, refrigeration agent).This compressing mechanism is driven by the eccentric crank pin of live axle.Unloading lining is provided with between eccentric crank pin and compressing mechanism.Unloading lining is arranged to be driven by eccentric crank pin and relative to eccentric crank pin generation relative displacement, can realizes the radial compliance of determining between the blade of scroll element and dynamic scroll element thus.
But the relative movement between unloading lining and eccentric crank pin makes their surface of contact by Fast Wearing, can have impact on the performance of compressor radial compliance thus and shorten the working life unloading lining and eccentric crank pin.
Therefore, need a kind of for the wear-resisting unloading lining in scroll compressor and eccentric crank pin.
Model utility content
An object of the present utility model is to provide a kind of scroll compressor with wear-resisting unloading lining and/or eccentric crank pin.
Another object of the present utility model is the scroll compressor providing a kind of long service life.
Another object of the present utility model is to provide a kind of wear-resisting unloading lining.
Another object of the present utility model is to provide a kind of live axle with wear-resisting eccentric crank pin.
According to an aspect of the present utility model, provide a kind of scroll compressor, comprising: be configured to the compressing mechanism that working fluid is compressed and the live axle being constructed to be permeable to drive compressing mechanism.Live axle comprises eccentric crank pin, is provided with unloading lining between compressing mechanism and eccentric crank pin, makes eccentric crank pin drive compressing mechanism to realize the radial compliance of compressing mechanism via unloading lining.Eccentric crank pin comprises the eccentric crank pin auxiliary section contacting also relative displacement with unloading lining, and unloading lining comprises with eccentric mechanism pin contacts and the unloading lining auxiliary section of relative displacement.Eccentric crank pin auxiliary section with unloading lining auxiliary section at least one at least partially on be provided with wearing layer.
In above-mentioned scroll compressor, due to eccentric crank pin or unloading lining auxiliary section on be provided with wearing layer, therefore improve eccentric crank pin or unloading lining wear resistance, extend eccentric crank pin or unloading lining working life.Consequently, the working life with the scroll compressor of this eccentric crank pin and unloading lining is extended.
Preferably, eccentric crank pin comprises the drive surface of the spin axis extension being parallel to live axle, and eccentric crank pin auxiliary section comprises drive surface at least partially.
Preferably, at least outwardly part is provided with wearing layer at the substantial middle place being positioned at drive surface.
Preferably, unloading lining can comprise the hole that can hold eccentric crank pin, and hole has the driven surface coordinated with the drive surface of eccentric crank pin, and unloading lining auxiliary section comprises driven surface at least partially.
Preferably, at least in the part of the substantial middle of driven surface, wearing layer is provided with.
Preferably, wearing layer is the hardened layer of surface hardness in the scope of 1500HV to 3000HV.
Preferably, the thickness of wearing layer is in the scope of 0.1 micron to 4.5 microns.
Preferably, wearing layer is formed by one of following method: physical vapor deposition, chemical vapor deposition, plasma gas phase deposition, plating, chemical plating, carburizing, nitriding, carbonitriding, shot-peening and surface hardening heat treatment.
Preferably, wearing layer is formed by one of llowing group of materials: metal layer, DLC, carbide, nitride, silicon compounds, boride and oxide.Alternatively, wearing layer is formed by chromium nitride.
According to another aspect of the present utility model, also relate to a kind of live axle for scroll compressor, wherein, live axle comprises the eccentric crank pin of the compressing mechanism for driving scroll compressor being arranged on its one end place, and eccentric crank pin comprises the drive surface of the spin axis extension being parallel to live axle.At least drive surface substantial middle and outwardly part is provided with wearing layer, wearing layer is the hardened layer comprising metal layer, DLC, carbide, nitride, silicon compounds, boride or oxide formed by physical vapor deposition, chemical vapor deposition, plasma gas phase deposition, plating, chemical plating, carburizing, nitriding, carbonitriding, shot-peening or surface hardening heat treatment.
According to another aspect of the present utility model, also relate to a kind of unloading lining for scroll compressor, wherein, unloading lining comprises the hole in roughly D shape, and hole has the driven surface coordinated with the drive surface of the eccentric crank pin of scroll compressor.At least in the part of the substantial middle of driven surface, be provided with wearing layer, wearing layer is the hardened layer comprising metal layer, DLC, carbide, nitride, silicon compounds, boride or oxide formed by physical vapor deposition, chemical vapor deposition, plasma gas phase deposition, plating, chemical plating, carburizing, nitriding, carbonitriding, shot-peening or surface hardening heat treatment.
Accompanying drawing explanation
By the description referring to accompanying drawing, the feature and advantage of one or several mode of execution of the present utility model will become easier to understand, wherein:
Fig. 1 is the longitudinal section of scroll compressor;
Fig. 2 is the eccentric crank pin of the live axle of scroll compressor in Fig. 1 and the assembling schematic diagram of unloading lining;
Fig. 3 shows the schematic perspective view of the eccentric crank pin of the live axle of Fig. 2;
Fig. 4 shows the schematic perspective view of the unloading lining of Fig. 2;
Fig. 5 schematically shows the method for the formation wearing layer according to the utility model first mode of execution; And
Fig. 6 is the schematic diagram of wearing layer.
Embodiment
Description related to the preferred embodiment is only exemplary below, and is never the restriction to the utility model and application or usage.Adopt identical reference character to represent identical parts in various figures, therefore the structure of same parts is by no longer repeated description.
First total structure and the running principle of scroll compressor are described with reference to Fig. 1.Shown in Fig. 1 is high side compressors, it is to be understood, however, that, the high side compressors in Fig. 1 only for purposes of illustration, and unrestricted the utility model.The utility model can be suitable for the compressor of any type, comprises low voltage side compressor, vertical compressor, horizontal compressor etc.
As shown in Figure 1, scroll compressor 100 (hereinafter sometimes also can be called compressor) generally comprises housing 110, is arranged on the top cover 112 of housing 110 one end and is arranged on the bottom 114 of housing 110 the other end.The motor 20 be made up of stator 122 and rotor 124 is provided with in housing 110.Live axle 30 is provided with to drive by the compressing mechanism 10 determined scroll element 150 and dynamic scroll element 160 and formed in rotor 124.Dynamic scroll element 160 comprises end plate 164, be formed in the hub portion 162 of end plate side and be formed in the spiral helicine blade 166 of end plate opposite side.Determine scroll element 150 to comprise end plate 154, be formed in the spiral helicine blade 156 of end plate side and be formed in the relief opening 152 of substantial middle position of end plate.Determining to form a series of volume between the helical blade 156 of scroll element 150 and the helical blade 166 of dynamic scroll element 160 at the compression chamber reduced gradually from radial outside to radially inner side.Wherein, the compression chamber of outermost radial outside is in pressure of inspiration(Pi), and the compression chamber of radial inner side is in exhaust pressure.Middle compression chamber is between pressure of inspiration(Pi) and exhaust pressure, thus is also referred to as middle pressure chamber.
The side of dynamic scroll element 160 is supported by the top (it forms thrust surfaces) of main bearing seat 140, and a part for live axle 30 is supported by the main bearing be arranged in main bearing seat 140.One end of live axle 30 is provided with eccentric crank pin 32, is provided with unloading lining 42 between eccentric crank pin 32 and the hub portion 162 of dynamic scroll element 160.By the driving of motor 20, dynamic scroll element 160 will relative to determining scroll element 150 translation rotation (namely, the central axis of dynamic scroll element 160 rotates around the central axis determining scroll element 150, but dynamic scroll element 160 itself can not rotate around the central axis of itself) to realize the compression of fluid.Above-mentioned translation rotation is realized by the cross slip-ring determining to arrange between scroll element 150 and dynamic scroll element 160.
In the example of the scroll compressor shown in Fig. 1, store oiling agent in the bottom of compressor housing.Correspondingly, be formed in live axle 30 roughly along its axially extended passage, be namely formed in the center hole 136 of live axle 30 lower end and extend up to the eccentric opening 134 of eccentric crank pin 32 end face from center hole 136.The end of center hole 136 is immersed in the oiling agent bottom compressor housing or has otherwise been supplied to oiling agent.In the operation process of compressor, the lubricated agent feeding device supply in one end of center hole 136 has oiling agent, and the oiling agent entering center hole 136 is subject to the effect of centrifugal force and is pumped or is thrown to upwards to flow in eccentric opening 134 and along eccentric opening 134 and arrive the end face of eccentric crank pin 32 always in live axle 30 rotary course.The oiling agent of discharging from the end face of eccentric crank pin 32 along the gap between unloading lining 42 and eccentric crank pin 32 and the gap unloaded between lining 42 and hub portion 162 flow downward arrive main bearing seat 140 recess.The a part of oiling agent be gathered in recess flows through main bearing and flows downward, and a part of oiling agent is stirred by hub portion 162 and the move upward downside the thrust surfaces spreading all over dynamic scroll element 160 and main bearing seat 140 along with the translation rotation of dynamic scroll element 160 that arrive the end plate 164 moving scroll element 160.In the operation process of compressor, the oiling agent be supplied on the various movable parts in compressor is thrown out of and splashes to form drop or mist.
In the scroll compressor shown in Fig. 1, in order to realize the compression of fluid, determining must effective sealing between scroll element 150 and dynamic scroll element 160.On the one hand, determine to need axial seal between the top of the helical blade 156 of scroll element 150 and the end plate 164 of dynamic scroll element 160 and between the top of the helical blade 166 of dynamic scroll element 160 and the end plate 154 determining scroll element 150.The axial elasticity of scroll compressor is known for those skilled in the art, is therefore no longer described in greater detail herein.
On the other hand, also radial seal is needed between the side surface determining the side surface of the helical blade 156 of scroll element 150 and the helical blade 166 of dynamic scroll element 160.Therebetween this radial seal realizes by means of the relative displacement between eccentric crank pin 32 and unloading lining 42 usually.Particularly, in operation process, by the driving of motor 20, dynamic scroll element 160 will relative to determining scroll element 150 translation rotation, thus dynamic scroll element 160 will produce centrifugal force.On the other hand, the eccentric crank pin 32 of live axle 30 also can produce the driving force component contributing to realizing the radial seal determining scroll element 150 and dynamic scroll element 160 in rotary course.The helical blade 166 of dynamic scroll element 160 is determined abutting in by means of above-mentioned centrifugal force and driving force component on the helical blade 156 of scroll element 150, thus realizes radial seal therebetween.When incompressible material (such as solid impurity, lubricant oil and liquid refrigerant) enter in compression chamber be stuck between helical blade 156 and helical blade 166 time, helical blade 156 and helical blade 166 can temporarily radially be separated from each other to allow foreign matter to pass through, namely, between eccentric crank pin 32 and unloading lining 42, create relative displacement, therefore prevent helical blade 156 or 166 to damage.This ability that can radial separate is that scroll compressor provides radial compliance, improves the reliability of compressor.
But the relative displacement between eccentric crank pin 32 and unloading lining 42 makes them by too fast, excessive wear.In order to solve this problem, in the utility model, coating rubbing-layer is coated with to improve its hardness and wear resistance to the part easy to wear of eccentric crank pin 32 and/or unloading lining 42.
Referring to Fig. 2 to Fig. 4, eccentric crank pin and unloading lining are described in detail.
As shown in Figure 3, it illustrates the schematic perspective view of the eccentric crank pin of live axle.One end of live axle 30 comprises eccentric crank pin 32.Be formed in live axle 30 roughly along supplying oiling agent with the eccentric opening 134 of the first direction (longitudinal direction) of the rotation axis parallel of live axle 30 with the end to eccentric crank pin 32.The eccentric crank pin 32 of live axle 30 is engaged in the hub portion 162 of dynamic scroll element 160 via unloading lining 42, as shown in Figure 1.Eccentric crank pin 32 comprises the drive surface 321 of the spin axis extension being parallel to live axle 30.Correspondingly, the hole unloading the roughly D shape supplying eccentric crank pin 32 to pass of lining 42 comprises the driven surface 143 that can coordinate with the drive surface 321 of eccentric crank pin 32.After unloading lining 42 is assembled to compressor 100 with eccentric crank pin 32, the size in the hole of the roughly D shape in unloading lining 42 is greater than the size of eccentric crank pin 32 with the radial compliance guaranteeing dynamic scroll element 160 and determine between scroll element 150.
As shown in Figure 2, it illustrates the assembling schematic diagram of unloading lining and eccentric crank pin.When unloading lining 42 and being mounted on eccentric crank pin 32, eccentric crank pin 32 is contained in the D shape hole of unloading lining 42, and meanwhile, the drive surface 321 of eccentric crank pin 32 coordinates with the driven surface 143 of unloading lining 42.By this structure, when eccentric crank pin 32 rotates, because the drive surface 321 of eccentric crank pin 32 coordinates with the driven surface 143 of unloading lining 42, therefore eccentric crank pin 32 can drive unloading lining 42 to rotate.In addition, the width (that is, perpendicular to the size of the axial direction of live axle) of the drive surface 321 of eccentric crank pin 32 is less than the width (that is, perpendicular to the size of the axial direction of live axle) of the driven surface 143 of unloading lining 42.Like this, can there is relative movement relative to the driven surface 143 of unloading lining 42 in the drive surface 321 of eccentric crank pin 32.
When desirable operating mode and the desirable Design and manufacture size (that is, without manufacturing and fixing error) thereof of compressor, when the compressor is operating, the helical blade determining scroll element and dynamic scroll element can closely fit together.Now, the maximum and substantially constant of distance between the center of lining and the center of live axle is unloaded.
But, inventor finds, it is not consistent for causing due to manufacturing and fixing error determining scroll element with the centre distance of dynamic scroll element, therefore, after compressor operating a period of time, relative displacement (it corresponds to manufacturing and fixing error) can be produced between unloading lining and eccentric crank pin, particularly, unload the smooth of lining.In addition, inventor also finds, under actual conditions, when running into impurity or liquid refrigerant enters, because unloading lining is relative to eccentric crank pin generation relative movement, the center of dynamic scroll element to the off-centring of live axle, therefore can be determined scroll element and is separated momently with the helical blade of dynamic scroll element, prevent it from damaging.
During the actual motion of compressor, the driven surface 143 of unloading lining 42 is all subject to normal load with the drive surface 321 of eccentric crank pin 32, and there is relative movement between two driven surface 143,321.Therefore, create serious wearing and tearing in the driven surface 143 of unloading lining 42 with the drive surface 321 of eccentric crank pin 32, shorten its working life thus, have impact on the working efficiency of compressor.
For this reason, wearing layer (also can be called " hardening coat " or " hardening film ") 50 can be provided with to improve its wear resistance in the unloading driven surface 143 of lining 42 and/or the drive surface 321 of eccentric crank pin 32 according to the utility model.
Be described according to the example of wearing layer of the present utility model and process engineering thereof referring to Fig. 5 and Fig. 6.
As shown in Figure 5, the base material S of coating to be coated (being such as the driven surface 143 of unloading lining 42 herein and/or the drive surface 321 of eccentric crank pin 32) to be placed in chamber and by its ground connection or be connected to negative power supply, target T (such as, chromium target) to be also placed in chamber simultaneously and to be connected to cathode power supply.Chamber is vacuumized, simultaneously to filling nitrogen in it.Ionize under the arcing that target material and nitrogen produce at low voltage, big current, and by electric field acceleration, striking work forms the attachment of chromium nitride film layer on substrate surface.
Above-mentioned manufacturing process is only an example of physical vapor deposition, is not intended to limit the utility model.Wearing layer 50 of the present utility model can be formed by other manufacturing processs as known in the art, such as, and chemical vapor deposition, plasma gas phase deposition, plating, chemical plating, carburizing, nitriding, carbonitriding, shot-peening, surface hardening heat treatment etc.According to various manufacturing process, wearing layer 50 can be formed by metal layer, DLC, carbide, nitride, silicon compounds, boride or oxide etc., and such as, wearing layer 50 can be formed by chromium nitride.
In the utility model, eccentric crank pin 32 and/or unloading lining 42 can be made up of powdered metallurgical material, and its surface hardness is roughly in the scope of 600HV to 800HV.When the manufacturing process according to Fig. 5 and Fig. 6 eccentric crank pin 32 and/or unloading lining 42 on (such as, eccentric crank pin 32 drive surface 321 and/or unloading lining 42 driven surface 143 on) be coated with the chromium nitride wearing layer 50 of roughly 2 to 4 micron thickness time, the surface hardness of this chromium nitride wearing layer 50 can reach the scope of 1500HV to 3000HV, reaches the scope of 1700HV to 2700HV alternatively.Thus, the surface hardness of the drive surface of eccentric crank pin 32 and/or the driven surface of unloading lining 42 can be significantly improved, and can greatly strengthen its abrasion resistance properties.In addition, the thickness of wearing layer 50 can in the scope of 0.1 micron to 4.5 microns.
Inventor has carried out reliability trial to the above-mentioned eccentric crank pin 32 being coated with chromium nitride wearing layer 50 with unloading lining 42.Particularly, this eccentric crank pin 32 and unloading lining 42 are mounted to compressor, make compressor run 500 hours under high-speed overload operating mode, find that the drive surface of eccentric crank pin 32 and the driven surface of unloading lining 42 are not are not almost worn and torn.
Above-mentioned test shows: by be coated with coating rubbing-layer 50 in the drive surface of eccentric crank pin 32 and/or the driven surface of unloading lining 42 after, wearing layer 50 can stop eccentric crank pin 32 directly to contact with the powdered metallurgical material of unloading lining 42, thus can prevent powdered metallurgical material from coming off.Therefore, wearing layer 50 substantially increases the wear-resisting property of eccentric crank pin 32 and/or unloading lining 42.
In addition, in some cases, can be good fit according to its forms of motion in order to make eccentric crank pin 32 and unload lining 42, the drive surface 321 of eccentric crank pin 32 can have the slightly protruding part being roughly positioned at centre.In the slightly protruding part that wearing layer 50 only can be arranged on the substantial middle place of the drive surface 321 or substantial middle place of driven surface 143.Or, can be arranged in whole drive surface 321 and/or driven surface 143.In addition, except drive surface 321 and/or driven surface 143, also can to eccentric crank pin 32 and/or unloading lining 42 through other frayed parts be coated with coating rubbing-layer.
It should be understood that appearance profile and/or the setting position of wearing layer 50 can be shaped according to actual needs.
Specifically describe various mode of execution of the present utility model and modification above, but it should be appreciated by those skilled in the art that the utility model is not limited to above-mentioned concrete mode of execution and modification but can comprises other various possible combination and combinations.
Although described various mode of execution of the present utility model in detail at this, but should be appreciated that the utility model is not limited to the embodiment described in detail and illustrate here, other modification and variant can be realized when not departing from essence of the present utility model and scope by those skilled in the art.All these modification and variant all fall in scope of the present utility model.And all components described here can be replaced by component equivalent in other technologies.
Claims (12)
1. a scroll compressor (100), comprising:
Compressing mechanism (10), described compressing mechanism (10) is configured to compress working fluid; And
Live axle (30), described live axle (30) is constructed to be permeable to drive described compressing mechanism (10);
Wherein, described live axle (30) comprises eccentric crank pin (32), be provided with between described compressing mechanism (10) and described eccentric crank pin (32) and unload lining (42), described eccentric crank pin (32) is made to drive described compressing mechanism (10) to realize the radial compliance of described compressing mechanism (10) via described unloading lining (42), and
Described eccentric crank pin (32) comprises the eccentric crank pin auxiliary section contacting also relative displacement with described unloading lining (42), described unloading lining (42) comprises the unloading lining auxiliary section contacting also relative displacement with described eccentric crank pin (32)
It is characterized in that, at least one in described eccentric crank pin auxiliary section and described unloading lining auxiliary section at least partially on be provided with wearing layer (50).
2. scroll compressor (100) as claimed in claim 1, wherein, described eccentric crank pin (32) comprises the drive surface (321) of the spin axis extension being parallel to described live axle (30), and described eccentric crank pin auxiliary section comprises described drive surface (321) at least partially.
3. scroll compressor (100) as claimed in claim 2, wherein, at least outwardly part is provided with described wearing layer (50) at the substantial middle place being positioned at described drive surface (321).
4. scroll compressor (100) as claimed in claim 2, wherein, described unloading lining (42) comprises the hole that can hold described eccentric crank pin (32), described hole has the driven surface (143) coordinated with the described drive surface (321) of described eccentric crank pin (32), and described unloading lining auxiliary section comprises described driven surface (143) at least partially.
5. scroll compressor (100) as claimed in claim 4, wherein, is at least provided with described wearing layer (50) in the part of the substantial middle of described driven surface (143).
6. the scroll compressor (100) according to any one of claim 1 to 5, wherein, described wearing layer (50) is the hardened layer of surface hardness in the scope of 1500HV to 3000HV.
7. the scroll compressor (100) according to any one of claim 1 to 5, wherein, the thickness of described wearing layer (50) is in the scope of 0.1 micron to 4.5 microns.
8. the scroll compressor (100) according to any one of claim 1 to 5, wherein, described wearing layer (50) is formed by one of following method: physical vapor deposition, chemical vapor deposition, plasma gas phase deposition, plating, chemical plating, carburizing, nitriding, carbonitriding, shot-peening and surface hardening heat treatment.
9. the scroll compressor (100) according to any one of claim 1 to 5, wherein, described wearing layer (50) is formed by one of llowing group of materials: metal layer, DLC, carbide, nitride, silicon compounds, boride and oxide.
10. scroll compressor (100) as claimed in claim 9, wherein, described wearing layer (50) is formed by chromium nitride.
11. 1 kinds of live axles for scroll compressor (100) (30), wherein, described live axle (30) comprises the eccentric crank pin (32) of the compressing mechanism (10) for driving described scroll compressor (100) being arranged on its one end place, described eccentric crank pin (32) comprises the drive surface (321) of the spin axis extension being parallel to described live axle (30)
It is characterized in that, at least described drive surface (321) substantial middle and outwardly part is provided with wearing layer (50), described wearing layer (50) is the hardened layer comprising metal layer, DLC, carbide, nitride, silicon compounds, boride or oxide formed by physical vapor deposition, chemical vapor deposition, plasma gas phase deposition, plating, chemical plating, carburizing, nitriding, carbonitriding, shot-peening or surface hardening heat treatment.
12. 1 kinds of unloading linings (42) for scroll compressor (100), wherein, described unloading lining (42) comprises the hole in roughly D shape, described hole has the driven surface (143) coordinated with the drive surface of the eccentric crank pin of described scroll compressor (100) (32) (321)
It is characterized in that, at least in the part of the substantial middle of described driven surface (143), be provided with wearing layer (50), described wearing layer (50) is the hardened layer comprising metal layer, DLC, carbide, nitride, silicon compounds, boride or oxide formed by physical vapor deposition, chemical vapor deposition, plasma gas phase deposition, plating, chemical plating, carburizing, nitriding, carbonitriding, shot-peening or surface hardening heat treatment.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520251170.7U CN204591668U (en) | 2015-04-23 | 2015-04-23 | Scroll compressor and drive shaft and unload bushing for scroll compressor |
| PCT/CN2016/075986 WO2016169349A1 (en) | 2015-04-23 | 2016-03-09 | Scroll compressor and driving shaft and unloading bush for scroll compressor |
| EP16782497.8A EP3287638A4 (en) | 2015-04-23 | 2016-03-09 | Scroll compressor and driving shaft and unloading bush for scroll compressor |
| KR1020177033288A KR20170138506A (en) | 2015-04-23 | 2016-03-09 | Drive shafts and unloading bushes for scroll compressors and scroll compressors |
| JP2018506467A JP2018517097A (en) | 2015-04-23 | 2016-03-09 | Scroll compressor and drive shaft and unload bush for scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520251170.7U CN204591668U (en) | 2015-04-23 | 2015-04-23 | Scroll compressor and drive shaft and unload bushing for scroll compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204591668U true CN204591668U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520251170.7U Active CN204591668U (en) | 2015-04-23 | 2015-04-23 | Scroll compressor and drive shaft and unload bushing for scroll compressor |
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| CN (1) | CN204591668U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169349A1 (en) * | 2015-04-23 | 2016-10-27 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor and driving shaft and unloading bush for scroll compressor |
| CN106151029A (en) * | 2015-04-23 | 2016-11-23 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor and drive shaft and unload bushing for scroll compressor |
| WO2022152228A1 (en) * | 2021-01-18 | 2022-07-21 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor |
-
2015
- 2015-04-23 CN CN201520251170.7U patent/CN204591668U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016169349A1 (en) * | 2015-04-23 | 2016-10-27 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor and driving shaft and unloading bush for scroll compressor |
| CN106151029A (en) * | 2015-04-23 | 2016-11-23 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor and drive shaft and unload bushing for scroll compressor |
| WO2022152228A1 (en) * | 2021-01-18 | 2022-07-21 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor |
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