CN106979158A - Seal assembly and scroll compressor including the same - Google Patents
Seal assembly and scroll compressor including the same Download PDFInfo
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- CN106979158A CN106979158A CN201610031065.1A CN201610031065A CN106979158A CN 106979158 A CN106979158 A CN 106979158A CN 201610031065 A CN201610031065 A CN 201610031065A CN 106979158 A CN106979158 A CN 106979158A
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- Prior art keywords
- component
- containment member
- supporting member
- seal assembly
- containment
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/007—Sealings for working fluid between radially and axially moving parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention relates to a seal assembly and a scroll compressor including the same. According to one aspect of the present invention, a seal assembly for a scroll compressor is provided, the scroll compressor including a first member and a second member, the seal assembly being disposed between the first member and the second member. The seal assembly includes: a sealing member having a first sealing face adapted to abut a first member and a second sealing face adapted to abut a second member; and a support member. The sealing member is provided with a sealing member contact portion opposed to the first sealing surface and the second sealing surface, and the bearing member is provided with a bearing member contact portion adapted to engage with the sealing member contact portion, so that the sealing member abuts against the first member and the second member by urging the bearing member toward the sealing member. According to the present invention, reliable sealability of, for example, a back pressure chamber for achieving axial flexibility can be ensured, while the ease of assembly of the related seal assembly can be improved.
Description
Technical field
The present invention relates to screw compressor field, different pressures area can be improved more particularly, to screw compressor
The seal assembly of radial impermeability between domain.
Background technology
Screw compressor can apply in such as refrigeration (freezing is refrigerated) system, air-conditioning system and heat pump.Whirlpool
Revolve compressor include for compression work fluid (such as refrigerant) scroll compression body, scroll compression body so including calmly
Scroll element and dynamic vortex part.Can be in dynamic vortex part in some screw compressors (such as high-pressure side screw compressor)
Support dynamic vortex part main bearing seat between set with middle pressure back pressure chamber (for example, back pressure chamber by escape orifice with
Middle pressure compression chamber connects and has middle pressure), and can be fixed in some screw compressors (such as low-pressure side screw compressor)
Scroll element and separate screw compressor enclosure interior high-pressure area and area of low pressure acoustical panel (also referred to as dividing plate) it
Between set with middle pressure back pressure chamber, so as to allow scroll compression body possess axial elasticity (that is, it is allowed to determine vortex part or
Dynamic vortex part realizes unloading axially being floated in the case of excessive loads) while ensure determine vortex in scroll compression body
Axial seal performance between part and dynamic vortex part.
Thus, between dynamic vortex part and main bearing seat and it can be formed and had between determine vortex part and acoustical panel
Multiple pressure spans of different pressures.Need to set between two neighboring pressure span in these multiple pressure spans and seal
Component is so that two neighboring pressure span to be separated.
However, in some related seal assemblies, the particularly radial sealing of sealing property of seal assembly can not be obtained
To Reliable guarantee.Accordingly, there exist improve the sealing property of seal assembly (seal assembly particularly for back pressure chamber) (particularly
Radial impermeability) while facilitating the assembling of seal assembly the need for.
Here, it is noted that the technology contents provided in this part are intended to contribute to those skilled in the art couple
The understanding of the present invention, and not necessarily constitute prior art.
The content of the invention
Total summary of the present invention is provided in this part, rather than complete scope of the present invention or all features of the invention is complete
Face is disclosed.
It can ensure that the radial direction of containment member is close simultaneously by simple structure it is an object of the present invention to provide a kind of
The seal assembly of envelope property and axial seal.
It can avoid it is a further object of the present invention to provide a kind of or reduce stream between the pressure span with different pressures
The seal assembly of body leakage.
It is a further object of the present invention to provide one kind can avoid producing between determine vortex part and dynamic vortex part compared with
The seal assembly of big axial force.
It is a further object of the present invention to provide one kind the increase of motor operation electric current and scroll element can be avoided seriously to grind
The seal assembly of damage.
Other purposes of the present invention, which are that offer is a kind of, includes the screw compressor of above-mentioned seal assembly.
One or more of to achieve these goals, it is used to be vortexed according to an aspect of the present invention there is provided one kind
The seal assembly of compressor, the screw compressor defines axial direction and including first component and can be approximately along described
The second component of axial direction motion, forms fluted at one of the first component and the second component place, described
Seal assembly is arranged between the first component and the second component and at least a portion of the seal assembly is housed
In the groove.The seal assembly includes：Containment member, the containment member, which has, is adapted to abut against the first component
Primary sealing area and the secondary sealing area for being adapted to abut against the second component；And supporting member.The containment member is provided with
The containment member contact site relative with the secondary sealing area with the primary sealing area, the supporting member be provided with suitable for
The supporting member contact site that the containment member contact site coordinates, thus by by the supporting member towards the containment member
Push and cause the containment member to be resisted against the first component and the second component.
One or more of to achieve these goals, there is provided a kind of scroll compression according to another aspect of the present invention
Machine.The screw compressor includes seal assembly as described above.
According to the present invention, because containment member and supporting member are configured with corresponding inclined-plane so as to by corresponding
Inclined-plane and sliding contact cooperation (wedging coordinate) can be carried out, therefore will supporting in the axialy offset power by biasing member
Component towards containment member push in the case of, containment member can simultaneously be resisted against first component (such as main bearing seat) and
(this is due to that the bias force of biasing member is also resulted in and acted in containment member to both second components (such as dynamic vortex part)
On radial component, the radial component cause containment member produce circumferential tension deformation and expand outwardly and external diameter increase so that
The radial sealing surfaces of containment member are caused to abut first component) so that the assembling by simple structure in seal assembly is completed
Ensure the radial impermeability and axial seal of containment member simultaneously afterwards.That is, by only in a substantially axial direction or only
Exert a force and (that is, uniaxially exert a force) in a substantially radial direction and realize containment member on substantially axial and approximately radial twocouese
Stress is so as to simultaneously be resisted against both first component and second component.Sealing property accordingly, due to seal assembly is obtained
Ensure, therefore the fluid in high-pressure area can be avoided to be leaked to middle intermediate pressure section (such as back pressure chamber)；Thus it is possible to avoid dynamic whirlpool
Part is revolved by larger upwards thrust, so as to avoid producing larger axial direction work between determine vortex part and dynamic vortex part
Firmly, so avoid motor operation electric current increase and scroll element heavy wear.Furthermore, it is possible to which the size of containment member is set
Count into and make it that the period of assembly containment member (now containment member is in the free state that does not stress) in seal assembly can be with
The corresponding perisporium of groove is assembled using gap fiting mode, so as to greatly reduce assembly difficulty.
Brief description of the drawings
By description referring to the drawings, the feature and advantage of one or more embodiments of the invention will become more
Plus be readily appreciated that, in the accompanying drawings：
Fig. 1 is the sectional side elevation for showing to apply the screw compressor of the seal assembly according to the present invention；
Fig. 2 is the major part for the screw compressor for showing the seal assembly using with good grounds first embodiment of the invention
Sectional side elevation and seal assembly detail view；
Fig. 3, Fig. 4, Fig. 5 and Fig. 6 be respectively show the seal assembly according to first embodiment of the invention containment member,
The exploded perspective view of supporting member, intermediate support frame and biasing member；
Fig. 7 is the stereogram for showing the main bearing seat associated with the seal assembly according to first embodiment of the invention；
Fig. 8 is the major part for the screw compressor for showing the seal assembly using with good grounds second embodiment of the invention
Sectional side elevation and seal assembly detail view；
Fig. 9 is the sectional side elevation for the major part for showing the screw compressor according to variant of the invention；
Figure 10 A, Figure 10 B, Figure 10 C and Figure 10 D are respectively the seal assembly for showing a series of modifications according to the present invention
Schematic diagram；
Figure 11 is the sectional side elevation of the major part for the screw compressor for showing the seal assembly using with good grounds correlation technique；
And
Figure 12 is the stereogram for showing the seal assembly according to correlation technique.
Embodiment
With reference to the accompanying drawings, by illustrative embodiments, the present invention will be described in detail.To the following detailed of the present invention
Carefully describe merely for the sake of illustration purpose, and be definitely not to the present invention and its application or the limitation of purposes.
First, reference picture 1 summarily describes to apply the knot of the screw compressor 10 of the seal assembly 800 according to the present invention
Structure (Fig. 1 is the sectional side elevation for showing to apply the screw compressor of the seal assembly according to the present invention).
As shown in figure 1, screw compressor 10 can include：Housing 100；By determine vortex part 220 and dynamic vortex part 240
The scroll compression body suitable for compression work fluid (such as refrigerant) constituted；And drive mechanism 300.Housing 100 can be with
Including enclosure body 120, the top cover 140 on the top for being attached to enclosure body 120 and the bottom for being attached to enclosure body 120
Bottom 160, so as to limit the confined space suitable for accommodating scroll compression body and the grade of drive mechanism 300.Drive mechanism 300 can be with
Including：The motor 320 being made up of stator 322 and rotor 324；And regularly couple with rotor 324 so that with rotor 324 integrally
The drive shaft 340 of ground rotation.Thus, drive shaft can be driven to dynamic vortex part 240 so that the phase of dynamic vortex part 240
For the moving of determine vortex part 220 to realize the compression to working fluid.
Screw compressor 10 can also include：Suitable for rotatably supporting drive shaft and axially supporting dynamic vortex
The main bearing seat 400 of part 240；The suction accessory (not shown) of pressure working fluid to be compressed for sucking；And be used for
Discharge the discharge accessory 600 of the pressurized working fluid through overcompression.
In the example shown in the series of figures, screw compressor 10 is the complete envelope that motor 320 is in high pressure (corresponding to discharge pressure)
Closed-type high-pressure side screw compressor.It will be appreciated, however, that the present invention can also be applied to other types of screw compressor, example
Such as low-pressure side screw compressor or semi-enclosed screw compressor.
Referring additionally to Fig. 2 (Fig. 2 be show using with good grounds first embodiment of the invention seal assembly scroll compression
The sectional side elevation of the major part of contracting machine and the detail view of seal assembly), can be in dynamic vortex part in screw compressor 10
Back pressure chamber BC with middle pressure is set between 240 and main bearing seat 400.When screw compressor 10 is shut down, dynamic vortex part 240
Separated against main bearing seat 400 with determine vortex part 220.After the start of screw compressor 10, (do not shown by escape orifice
Go out) and the back pressure chamber BC that is connected with the middle pressure compression chamber of scroll compression body receives the middle pressure working fluid from middle pressure compression chamber
And with middle pressure.Dynamic vortex part 240 is moved (approximately along screw compressor 10 upwards in the presence of back pressure chamber BC middle pressure
Axial direction A is moved) and against determine vortex part 220 so that realized between determine vortex part 220 and dynamic vortex part 240
Axial seal.Moreover, during screw compressor is run, once running into such as scroll compression body there are the feelings of hypertonia
Condition, then dynamic vortex part 240 can provisionally be separated with determine vortex part 220 and realize safe unloading.Thus, in scroll compression
Mechanism possess axial elasticity (that is, it is allowed to dynamic vortex part in the case of excessive loads axially float and realize unloading) it is same
When ensure the axial seal performance in scroll compression body between determine vortex part and dynamic vortex part.
As shown in Fig. 2 for realize the sealing between the middle intermediate pressure section MP residing for high-pressure area HP and back pressure chamber BC, it is necessary to
The back pressure chamber BC of such as general toroidal radially inner side and radial outside sets sealing device.In the example shown in the series of figures, footpath is inside
The sealing device of side can be implemented by the seal assembly 800 according to first embodiment of the invention, and radial outside is close
Seal apparatus then may be embodied as the metal to metal flat seal (gold i.e. between determine vortex part 220 and main bearing seat 400
Category is contacted to metal flat).Dynamic vortex portion is arranged on it will be appreciated, however, that can also be used in back pressure chamber BC radial outside
The seal assembly 800 according to first embodiment of the invention between part 240 and main bearing seat 400.
The seal assembly according to first embodiment of the invention is described referring to Fig. 2 and referring additionally to Fig. 3 to Fig. 7
800 (Fig. 3 to Fig. 6 be respectively show the containment member of the seal assembly according to first embodiment of the invention, supporting member, in
Between bearing support and biasing member exploded perspective view, and Fig. 7 be show with according to the seal assembly of first embodiment of the invention
The stereogram of associated main bearing seat).
According to first embodiment of the invention, seal assembly 800 can be arranged on main bearing seat 400 and dynamic vortex part
Between 240.Especially, fluted GV can be formed at one of main bearing seat 400 and dynamic vortex part 240 place, and it is close
At least a portion of sealing assembly 800 can be contained in groove GV.In preferred example, (for example in a ring) groove GV shapes
Into being provided with (such as general toroidal) support 420 of base bearing 440 in main bearing seat 400.Here, it should be pointed out that
It is, in the first embodiment, first component of the main bearing seat 400 as the fixation according to the present invention, and dynamic vortex part 240
As the second component that can axially float according to the present invention.
Reference picture 2, seal assembly 800 can include：Containment member 820；Supporting member 840；Biasing member 860；And
Intermediate support frame 880.
Containment member 820 may be embodied as sealing ring, that is, containment member 820 can be in substantially circular.Containment member
820 have the radial sealing surfaces (primary sealing area) 822 for being adapted to abut against main bearing seat 400 and are adapted to abut against dynamic vortex part 240
Axial seal face (secondary sealing area) 824.Secondary sealing area 824 can be adjacent with primary sealing area 822 (for example, both are altogether
With a line).In preferred example, primary sealing area 822 is adapted to abut against groove GV outer radial periphery wall GVa (referring to Fig. 2).
In this way, due to the radially inner side of seal assembly 800 is high-pressure area HP and radial outside is middle intermediate pressure section MP, therefore can be with
Containment member 820 is radially oriented outside pushing to make primary sealing area 822 more reliably be resisted against master by pressure differential
Bearing block 400, so as to realize relatively reliable radial impermeability.It will be appreciated, however, that seal assembly 800 can also be constructed
Groove GV radially inner circumference wall GVb is resisted against into primary sealing area 822 is caused (Fig. 2 is not indicated and reference can be made to Fig. 8).In this feelings
Under condition, appropriate radial impermeability can also be realized by the special structure of the seal assembly according to first embodiment.
Secondary sealing area 824 may be adapted to the axial surface (axial direction against the dynamic vortex part 240 for being not provided with groove GV
End face) 243a.Especially, axial end 243a is the axial end 243a in the hub portion 242 of dynamic vortex part 240.In diagram
In example, hub portion 242 could be formed with the flange part 243 that the axial end from hub portion 242 extends radially outward, and axially
End face 243a is the axial end 243a of flange part 243.By setting flange part 243, it can make dynamic vortex part 240 that there is foot
Enough axial ends are so that it is guaranteed that seal assembly 800 realizes reliable axial seal.
According to first embodiment of the invention, referring to Fig. 2 and Fig. 3, containment member 820 can be provided with inclined-plane (also referred to as
Containment member inclined-plane and be preferably in cross-section be in flat bevel, and as according to the present invention containment member contact
Portion) 826.Following article will be further described, and containment member inclined-plane 826 is suitable to carry out wedging cooperation with supporting member inclined-plane 846
(that is, produced so-called in the wedge shape space between the wedging containment member 820 of supporting member 846 and groove GV corresponding perisporium
Wedge effect).
Supporting member 840 can be in substantially circular.According to first embodiment of the invention, supporting member 840 can be set
It is equipped with inclined-plane (also referred to as supporting member inclined-plane and preferably flat bevel, and as according to the present invention's in cross-section
Supporting member contact site) 846.As described above, supporting member inclined-plane 846 is suitable to carry out wedging cooperation with containment member inclined-plane 826,
So as to which in the case where supporting member 840 is pushed towards containment member 820, containment member 820 can simultaneously be resisted against master
Both bearing block 400 and dynamic vortex part 240.In this way, it is possible to ensure containment member 820 simultaneously by simple structure
Radial impermeability and axial seal.
In some instances, containment member 820 can be made up of relatively soft material (such as PTFE), and support
Component 840 can be made up of comparatively firm material (such as metal).In this way, the containment member 820 of flexible relative
May insure sealing property, and relatively rigid supporting member 840 may insure to containment member 820 provide it is reliable support into
And ensure homogeneous deformation and the consistent seal performance of containment member 820.
As shown in Fig. 2 the cross section of containment member 820 can be in following shapes：By by a substantially rectangular corner
It is generally trapezoidal formed by excision.For example, in the cross section, with adjacent primary sealing area 822 and secondary sealing area 824
(such as primary sealing area 822 and secondary sealing area 824 at a right angle or approximate right angle), also with primary sealing area 822 and the
The relative inclined-plane 826 of two sealing surfaces 824, and also have (such as at a right angle) adjacent with primary sealing area 822 and with inclined-plane 826
The surface (not indicating) of adjacent (such as into obtuse angle) and (such as at a right angle) adjacent with secondary sealing area 824 and with inclined-plane 826
The surface (not indicating) of adjacent (such as into obtuse angle).
As shown in Fig. 2 similar with containment member 820, the cross section of supporting member 840 can be in following shapes：By inciting somebody to action
It is generally trapezoidal formed by substantially rectangular corner excision.In this way, supporting member 840 can be formed such that：Branch
The base portion 842 of bearing member 840 (base portion 842 is suitable to receive external force and make it that supporting member 840 is pushed towards containment member 820)
Close containment member 820 end (containment member side end) 842a and supporting member inclined-plane 846 close containment member 820
End (containment member side end) 846a be axially aligned with (i.e. radial position is consistent) and not towards containment member side (in Fig. 2
In be radial outside) extend beyond the containment member side end 846a on supporting member inclined-plane 846.In other words, base portion 842 is set to
Supporting member inclined-plane 846 is not extended off towards containment member side.
, can simply and be effectively formed can by forming containment member 820 and supporting member 840 by this way
Mutual sliding contact coordinates the containment member 820 and supporting member 840 of (wedging coordinates) (to realize and match somebody with somebody by means of their inclined-plane
Close), while the cunning after also allowing for the assembling and assembling of their (particularly supporting members 840) in groove GV in groove GV
It is dynamic.Especially, with such as L-shaped supporting member (in the L-shaped supporting member, the containment member side of the base portion of supporting member
End extends beyond the containment member side end on supporting member inclined-plane towards containment member side and then to extend beyond supporting member oblique
The extended line in face) compare, structure fully can be simplified and easily fabricated according to the supporting member 840 of the present invention, also can be more
It is fit easily within groove, and this can be avoided to prolong due to the part without the extended line for extending beyond inclined-plane 846
Extending portion point with the interference of containment member 820 so as to allow supporting member 840 and containment member 820 abundant wedging cooperation (i.e. plus
The sliding stroke that long wedging coordinates).
Here it is possible to conceive, the cross section of containment member 820 and/or the cross section of supporting member 840 can be closed in other
Suitable shape.For example, the cross section can be with triangular in shape.In the case of triangular in shape in cross section, for supporting member,
The containment member side end of the base portion of supporting member does not extend beyond the containment member side end on supporting member inclined-plane yet, or
Part of the supporting member also without the extended line for extending beyond supporting member inclined-plane is said to be formed as so-called L-shaped supporting structure
Part.In addition, in the case of triangular in shape in cross section, for containment member, containment member inclined-plane can be considered as with
It is also adjacent with primary sealing area and secondary sealing area while one sealing surface and relative secondary sealing area.
Biasing member 860 may be adapted to apply bias force to supporting member 840.Especially, biasing member 860 can be supported
Groove GV bottom wall GVc (Fig. 2 is not indicated and be can be found in Fig. 8) is met, so as to apply bias force to branch via intermediate support frame 880
Bearing member 840.In some instances, biasing member 860 can be in substantially circular wavy spring 860 (referring to Fig. 6)；With
This mode, can simplify the structure of biasing member while ensuring to provide stable bias force.In other examples, biasing member
860 can use other suitable elastic components；For example, biasing member 860 can include multiple circumferentially directions angularly
The helical spring of arrangement.
Intermediate support frame 880 can axially float and can be arranged between supporting member 840 and biasing member 860,
Biasing member 860 is applied bias force to supporting member 840 via intermediate support frame 880.In the example shown in the series of figures,
Under the confined state of seal assembly 800, the containment member side end (i.e. radial outer end in Fig. 2) of intermediate support frame 880 can
Using the end 842a of base portion 842 that supporting member 840 is extended beyond towards containment member side (Fig. 2 is radially outward) and supporting
The end 846a on component inclined-plane 846 and then the extended line for extending beyond supporting member inclined-plane 846.In other examples, in sealing
Under the confined state of component 800, the containment member side end of intermediate support frame 880 can not extend off supporting member 840
The end 842a of base portion 842 or the extended line for not extending off supporting member inclined-plane 846；In this way, it is possible to avoid in cunning
The interference possibility of intermediate support frame 880 and containment member 820 in dynamic wedging engagement process.
The intermediate support frame 880 that power transmits intermediary's component effect is played by setting, can improve and be provided to supporting member
The stability and uniformity of bias force and then the stability and uniformity for improving supporting member pushing containment member.It is additionally, since
Intermediate support frame 880 is set, it can be ensured that avoid the generally biasing member with concaveconvex structure from touching more soft sealing structure
Part and damage containment member and cause containment member heterogeneous deformation and lower sealing effectiveness.
Intermediate support frame 880 can be made up of relatively rigid material (such as metal), and/or, intermediate support frame
880 can be in substantially circular bearing support with generally rectangular in transverse cross-section.In this way it is possible to assure that intermediate support frame
880 with the steady contact of supporting member 840 and biasing member 860, provide biasing so that it is guaranteed that further improving to supporting member
The stability and uniformity of power.
In some instances, the diameter that can be sized to cause supporting member 840 of supporting member 840 is (Fig. 2's
It is internal diameter in example) it is (inside for footpath in the figure 2 example not by containment member 820 sealed perisporium GVa, GVb with groove GV
Perisporium GVb) diameter it is roughly equal, so as to allow supporting member along the perisporium slide.
Here, by way of parenthesis, a kind of seal assembly according to correlation technique is described.Reference picture 11 and Figure 12 (Figure 11
For the sectional side elevation of the major part of the screw compressor that shows the seal assembly using with good grounds correlation technique, and Figure 12 is shows
According to the stereogram of the seal assembly of correlation technique), dynamic vortex part is arranged on according to the seal assembly 800' of correlation technique
240'(is specially the hub portion 242' of dynamic vortex part) with main bearing seat 400'(be specially main bearing seat supporting drive shaft branch
Bearing portion 420') between.Seal assembly 800' includes：The rectangular sealing ring 820' in cross section；The supporting member of bearing seal ring；
And apply spring force to the elastic component of supporting member.Sealing ring 820', which has, can be resisted against dynamic vortex part 240''s
Axial seal face and the radial sealing surfaces that main bearing seat 400' can be resisted against.
In the seal assembly 800' according to correlation technique, elastic component only can be by sealing ring 820' axially towards dynamic
Scroll element 240' is pushed.Thus, if using elastic conjunction to sealing ring to improve radial impermeability to a certain extent,
Sealing ring assembling can be caused difficult, and if coordinated in order to easy to assembly using gap sealing ring, then can make radial seal
There is risk of leakage and will be unable to be guaranteed so as to seal assembly 800' radial impermeability in face.Once the sealing of seal assembly
It is able to not can be guaranteed, the fluid in high-pressure area will be leaked to middle intermediate pressure section (such as back pressure chamber)；So, dynamic vortex part will
By larger upwards thrust, so as to produce larger axial force between determine vortex part and dynamic vortex part, this will
Motor operation electric current can be caused to increase and scroll element heavy wear is also resulted in.
According to first embodiment of the invention, due to containment member and supporting member be configured with corresponding inclined-plane so as to
Sliding contact cooperation (wedging coordinates) can be carried out by corresponding inclined-plane, therefore by the axially inclined of biasing member
Put power and in the case that supporting member is pushed towards containment member, containment member can simultaneously be resisted against first component (ratio
Such as main bearing seat) and both second components (such as dynamic vortex part) (this is due to that the bias force of biasing member also results in generation
Effect radial component on the sealing member, the radial component cause containment member to produce circumferential tension deformation and expand outwardly and
External diameter increases, so as to cause the radial sealing surfaces of containment member to abut first component) so that by simple structure in sealing group
The assembling of part ensures the radial impermeability and axial seal of containment member simultaneously after completing.That is, by only in substantially axle
On to direction or only in a substantially radial direction force (that is, uniaxially exerting a force) and realize containment member substantially axial and substantially
Stress on radial direction twocouese is so as to simultaneously be resisted against both first component and second component.Accordingly, due to seal assembly
Sealing property is guaranteed, therefore the fluid in high-pressure area can be avoided to be leaked to middle intermediate pressure section (such as back pressure chamber)；Then,
Dynamic vortex part can be avoided by larger upwards thrust, so as to avoid producing between determine vortex part and dynamic vortex part
Larger axial force, and then avoid motor operation electric current from increasing and scroll element heavy wear.Furthermore, it is possible to will sealing
(now containment member is in the freedom that does not stress to the period of assembly containment member that component is sized so that in seal assembly
State) it can be assembled with the corresponding perisporium of groove using gap fiting mode, so as to greatly reduce assembly difficulty.
Referring to Fig. 8 descriptions, according to the seal assembly 800A of second embodiment of the invention, (Fig. 8 has root to show to apply
According to the major part of the screw compressor of the seal assembly of second embodiment of the invention sectional side elevation and seal assembly it is thin
Section figure).Seal assembly 800A and the seal assembly 800 according to first embodiment of the invention difference are：In seal assembly
Intermediate support frame is omitted in 800A.In this case, biasing member 860 can directly contact the base portion of supporting member 840
842 so that directly apply bias force to supporting member 840.Second embodiment of the invention can be obtained and the present invention first
The essentially identical technique effect of embodiment.
A variety of different modifications can be allowed according to the seal assembly of the present invention and associated screw compressor.
For example, as shown in Figure 9, (Fig. 9 is the vertical profile for the major part for showing the screw compressor according to variant of the invention
Figure), it is low-pressure side screw compressor using the screw compressor 10 of with good grounds seal assembly of the invention in a kind of modification.
The screw compressor 10 similarly includes the scroll compression body being made up of determine vortex part 220 and dynamic vortex part 240.Separately
Outside, the screw compressor 10 also includes the acoustical panel that the inner space of screw compressor 10 is separated into higher-pressure region and low-pressure area
500 (also referred to as dividing plates).In the screw compressor 10, it is provided for realizing between determine vortex part 220 and acoustical panel 500
The back pressure chamber BC with middle pressure of axial elasticity, so that being formed between determine vortex part 220 and acoustical panel 500 has different pressures
Multiple pressure spans of power, i.e. high-pressure area HP, middle intermediate pressure section MP and area of low pressure LP.Then, according to the sealing group of the present invention
Part 800,800A can be arranged between adjacent high-pressure area HP and middle intermediate pressure section MP and adjacent middle intermediate pressure section MP with it is low
So that two neighboring pressure span is separated between intermediate pressure section LP.Accommodating seal assembly can be provided at acoustical panel 500
800th, 800A groove GV (groove for being located at radially inner side in Fig. 9), can also (be specially determine vortex in determine vortex part 220
The end plate of part 220) place is provided for accommodating seal assembly 800,800A groove GV (is located at the recessed of radial outside in Fig. 9
Groove).
It is pointed out here that in the modification, acoustical panel 500 is used as the first component of the fixation according to the present invention,
Depending on scroll element 220 be used as according to the present invention the second component that can axially float.
In another example, (Figure 10 A to Figure 10 D are respectively to show a series of changes according to the present invention as shown in Figure 10 A to Figure 10 D
The schematic diagram of the seal assembly of type), in the seal assembly 800B according to a kind of modification, with seal assembly 800 described above,
800A is compared, and containment member contact site is shaped generally as the concave surface 826B of circular arc, and supporting member contact site is shaped generally as
The convex surface 846B of circular arc, convex surface is suitable to be engaged with concave surface, so that by the way that supporting member is pushed into (example towards containment member
As axially pushed) and cause the radial sealing surfaces of containment member to be resisted against first component (such as main bearing seat) and axial seal
Face is resisted against second component (such as dynamic vortex part).It is and described above in the seal assembly 800C according to another modification
Seal assembly 800,800A are compared, and containment member contact site is shaped generally as the convex surface 826C of circular arc, and supporting member is contacted
Portion is shaped generally as the concave surface 846C of circular arc, and concave surface is suitable to be engaged with convex surface, thus by by supporting member towards close
Envelope component is pushed and (for example axially pushed) and causes the radial sealing surfaces of containment member to be resisted against first component (such as base bearing
Seat) and axial seal face is resisted against second component (such as dynamic vortex part).In the seal assembly 800D according to another modification,
Compared with seal assembly 800 described above, 800A, containment member contact site is shaped generally as the convex surface 826D of circular arc, and
Supporting member contact site is formed as supporting member inclined-plane 846, and supporting member inclined-plane is suitable to carry out sliding contact cooperation with convex surface, from
And by pushing and (such as axially pushing) supporting member towards containment member the radial sealing surfaces of containment member are supported
It is against first component (such as main bearing seat) and axial seal face is resisted against second component (such as dynamic vortex part).According to another
In the seal assembly 800E of one modification, compared with seal assembly 800 described above, 800A, containment member contact site is formed as
Containment member inclined-plane 826, and supporting member contact site is shaped generally as the convex surface 846E of circular arc, convex surface is suitable to and containment member
Inclined-plane carries out sliding contact cooperation, so that by pushing and (such as axially pushing) and cause supporting member towards containment member
The radial sealing surfaces of containment member are resisted against first component (such as main bearing seat) and axial seal face is resisted against second component (example
Such as dynamic vortex part).It can obtain basic with seal assembly described above 800,800A according to the seal assembly of these modifications
Identical technique effect.
In a word, according to the present invention it is possible to including following advantageous scheme.
In the seal assembly according to the present invention：The containment member contact site is formed as containment member inclined-plane, and described
Supporting member contact site is formed as supporting member inclined-plane, and the supporting member inclined-plane is suitable to be slided with the containment member inclined-plane
It is dynamic to be engaged, so as to cause the containment member to be resisted against by the way that the supporting member is pushed towards the containment member
The first component and the second component；Or, the containment member contact site is shaped generally as the containment member of circular arc
Concave surface, and the supporting member contact site is shaped generally as the supporting member convex surface of circular arc, the supporting member convex surface is suitable to
It is engaged with the containment member concave surface, so as to cause institute by the way that the supporting member is pushed towards the containment member
State containment member and be resisted against the first component and the second component；Or, the containment member contact site is shaped generally as
The containment member convex surface of circular arc, and the supporting member contact site is shaped generally as the supporting member concave surface of circular arc, it is described
Supporting member concave surface is suitable to be engaged with the containment member convex surface, thus by by the supporting member towards the sealing
Component pushes and causes the containment member to be resisted against the first component and the second component；Or, the containment member
Contact site is shaped generally as the containment member convex surface of circular arc, and the supporting member contact site is formed as supporting member inclined-plane,
The supporting member inclined-plane is suitable to carry out sliding contact cooperation with the containment member convex surface, so that by by the supporting member
Pushed towards the containment member and cause the containment member to be resisted against the first component and the second component；Or,
The containment member contact site is formed as containment member inclined-plane, and the supporting member contact site is shaped generally as the branch of circular arc
Bearing member convex surface, the supporting member convex surface is suitable to carry out sliding contact cooperation with the containment member inclined-plane, so that by inciting somebody to action
The supporting member pushes towards the containment member and causes the containment member to be resisted against the first component and described the
Two components.
In the seal assembly according to the present invention：The supporting member is to be relatively rigid in substantially circular supporting structure
Part so that the containment member contact site is formed as containment member inclined-plane, containment member convex surface or containment member concave surface；And/
Or, the containment member is flexible relative in substantially circular containment member so that the supporting member contact site shape
As supporting member inclined-plane, supporting member convex surface or supporting member concave surface.
In the seal assembly according to the present invention：The cross section of the containment member is in by by a substantially rectangular angle
It is generally trapezoidal formed by portion's excision；And/or, the cross section of the supporting member is in by by a substantially rectangular angle
It is generally trapezoidal formed by portion's excision.
In the seal assembly according to the present invention, the supporting member is sized so that the straight of the supporting member
Footpath is roughly equal not by the diameter of the sealed perisporium of the containment member with the groove, to allow the supporting member edge
Perisporium slip.
In the seal assembly according to the present invention, the supporting member has base portion, and the base portion is suitable for reception external force
So that the supporting member is pushed towards the containment member.
In the seal assembly according to the present invention, the supporting member contact site is formed as supporting member inclined-plane, and institute
State base portion and be provided towards containment member side and do not extend off the supporting member inclined-plane.
In the seal assembly according to the present invention, the seal assembly also includes being suitable to apply bias force to the supporting
The biasing member of component.
In the seal assembly according to the present invention, the biasing member is in substantially circular wavy spring.
In the seal assembly according to the present invention, the seal assembly also includes intermediate support frame, the intermediate support frame
It is arranged between the supporting member and the biasing member and the biasing member will be biased via the intermediate support frame
Power applies to the supporting member.
In the seal assembly according to the present invention：The intermediate support frame is made up of relatively rigid material；And/or
Person, the intermediate support frame is in substantially circular bearing support with generally rectangular in transverse cross-section.
In the seal assembly according to the present invention, the containment member is sized so that：In the containment member
Under the free state not pushed by the supporting member, the containment member will be sealed with the groove by the containment member
Perisporium formation gap coordinate.
In the seal assembly according to the present invention, the primary sealing area is radial sealing surfaces, and the secondary sealing area is
The axial seal face adjacent with the primary sealing area, the primary sealing area be adapted to abut against the groove outer radial periphery wall or
Radially inner circumference wall, the secondary sealing area be adapted to abut against in the first component and the second component be not provided with it is described recessed
The axial end of the another one of groove.
In the seal assembly according to the present invention：The screw compressor is high-pressure side screw compressor, first structure
Part be the screw compressor main bearing seat, and the second component for the screw compressor can be in fully loaded position
The dynamic vortex part moved between unloading position；Or, the screw compressor is low-pressure side screw compressor, described first
Component be the screw compressor acoustical panel, and the second component for the screw compressor can be in fully loaded position
The determine vortex part moved between unloading position.
In the first component it is the main bearing seat and the second component is in the seal assembly according to the present invention
In the case of the dynamic vortex part, the groove in a ring and formed the main bearing seat the branch for being provided with base bearing
At bearing portion, to will be formed between the main bearing seat and the dynamic vortex part and be located at the seal assembly radial outside
Middle intermediate pressure section as back pressure chamber and be formed approximately between the main bearing seat and the dynamic vortex part and positioned at described
The high-pressure area with discharge pressure of seal assembly radially inner side is separated.
In the seal assembly according to the present invention, the primary sealing area is radial sealing surfaces, and the secondary sealing area is
The axial seal face adjacent with the primary sealing area, the primary sealing area be adapted to abut against the groove outer radial periphery wall or
Radially inner circumference wall, the secondary sealing area is adapted to abut against the axial end in the hub portion of the dynamic vortex part.
In the seal assembly according to the present invention, the seal assembly also includes being suitable to apply bias force to the supporting
The biasing member of component and the intermediate support frame being arranged between the supporting member and the biasing member, the biasing member
The bottom wall of the groove is abutted, is caused described so as to apply bias force to the supporting member via the intermediate support frame
Primary sealing area is resisted against the outer radial periphery wall.
In the seal assembly according to the present invention, the hub portion is formed with from the axial end in the hub portion radially outward
The flange part of extension, and the axial end is the axial end of the flange part.
In the seal assembly according to the present invention, in the enclosure interior of the screw compressor, the first component with
Multiple pressure spans with different pressures are formed between the second component, the seal assembly is arranged to the multiple pressure
Two neighboring pressure span in power region is separated.
In present specification, directional terminology " on ", the use at " top " and " bottom " etc. only merely for the purpose for being easy to description,
And be not construed as restricted.
Although with reference to illustrative embodiments, invention has been described, but it is to be understood that the present invention is not
The embodiment be described in detail and shown in text is confined to, in the situation without departing from claims limited range
Under, those skilled in the art can make various changes to illustrative embodiments.
Claims (20)
1. one kind is used for the seal assembly (800,800A, 800B, 800C, 800D, 800E) of screw compressor (10), described to be vortexed
Compressor defines axial direction (A) and including first component (400；500) and it can be moved approximately along the axial direction
Second component (240；220), formed fluted (GV) at one of the first component and the second component place, it is described
Seal assembly is arranged between the first component and the second component and at least a portion of the seal assembly is housed
In the groove, the seal assembly includes：
Containment member (820), the containment member has the primary sealing area (822) for being adapted to abut against the first component and is suitable to
Against the secondary sealing area (824) of the second component；And
Supporting member (840),
Wherein, the containment member is provided with the containment member relative with the secondary sealing area with the primary sealing area and contacted
Portion (826,826B, 826C, 826D), the supporting member is provided with the supporting structure suitable for coordinating with the containment member contact site
Part contact site (846,846B, 846C, 846E), so as to be caused by the way that the supporting member is pushed towards the containment member
The containment member is resisted against the first component and the second component.
2. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to claim 1, wherein：
The containment member contact site is formed as containment member inclined-plane (826), and the supporting member contact site is formed as supporting
Component inclined-plane (846), the supporting member inclined-plane is suitable to carry out sliding contact cooperation with the containment member inclined-plane, so as to pass through
The supporting member is pushed towards the containment member and causes the containment member to be resisted against the first component and described
Second component；Or
The containment member contact site is shaped generally as the containment member concave surface (826B) of circular arc, and the supporting member is contacted
Portion is shaped generally as the supporting member convex surface (846B) of circular arc, and the supporting member convex surface is suitable to and the containment member concave surface
It is engaged, so as to cause the containment member to be resisted against institute by the way that the supporting member is pushed towards the containment member
State first component and the second component；Or
The containment member contact site is shaped generally as the containment member convex surface (826C) of circular arc, and the supporting member is contacted
Portion is shaped generally as the supporting member concave surface (846C) of circular arc, and the supporting member concave surface is suitable to and the containment member convex surface
It is engaged, so as to cause the containment member to be resisted against institute by the way that the supporting member is pushed towards the containment member
State first component and the second component；Or
The containment member contact site is shaped generally as the containment member convex surface (826D) of circular arc, and the supporting member is contacted
Portion is formed as supporting member inclined-plane (846), and the supporting member inclined-plane is suitable to carry out sliding contact with the containment member convex surface
Coordinate, thus by by the supporting member towards the containment member pushes and so that the containment member is resisted against described the
One component and the second component；Or
The containment member contact site is formed as containment member inclined-plane (826), and the supporting member contact site is shaped generally as
The supporting member convex surface (846E) of circular arc, the supporting member convex surface is suitable to carry out sliding contact with the containment member inclined-plane
Coordinate, thus by by the supporting member towards the containment member pushes and so that the containment member is resisted against described the
One component and the second component.
3. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to claim 1, wherein：
The supporting member is to be relatively rigid in substantially circular supporting member；And/or
The containment member is flexible relative in substantially circular containment member.
4. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to claim 3, wherein：
The cross section of the containment member be in by will formed by substantially rectangular corner excision it is generally trapezoidal so that institute
State containment member contact site and be formed as containment member inclined-plane (826), containment member convex surface or containment member concave surface；And/or
The cross section of the supporting member be in by will formed by substantially rectangular corner excision it is generally trapezoidal so that institute
State supporting member contact site and be formed as supporting member inclined-plane (846), supporting member convex surface or supporting member concave surface.
5. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to claim 3, wherein, the supporting
Component is sized so that the diameter of the supporting member with the groove not by the sealed perisporium of the containment member
The diameter of (GVa, GVb) is roughly equal, to allow the supporting member to be slided along the perisporium.
6. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to claim 1, wherein, the supporting
Component has base portion (842), and the base portion is suitable to receive external force and make it that the supporting member is pushed away towards the containment member
Pressure.
7. seal assembly (800,800A, 800D) according to claim 6, wherein, the supporting member contact site is formed
For supporting member inclined-plane (846), and the base portion is provided towards containment member side not extend off the supporting member oblique
Face.
8. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to claim 1, wherein, the sealing
Component also includes being suitable to apply bias force to the biasing member of the supporting member (860).
9. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to claim 8, wherein, the biasing
Component is in substantially circular wavy spring (860).
10. seal assembly (800) according to claim 8, wherein, the seal assembly also includes intermediate support frame
(880), the intermediate support frame be arranged between the supporting member and the biasing member cause the biasing member via
The intermediate support frame applies bias force to the supporting member.
11. seal assembly (800) according to claim 10, wherein：
The intermediate support frame (880) is made up of relatively rigid material；And/or
The intermediate support frame is in substantially circular bearing support with generally rectangular in transverse cross-section.
12. the seal assembly (800,800A, 800B, 800C, 800D, 800E) according to any one of claim 1 to 11,
Wherein, the containment member is sized so that：The free shape not pushed in the containment member by the supporting member
Under state, the containment member will be coordinated with the groove by the sealed perisporium of the containment member (GVa, GVb) formation gap.
13. the seal assembly (800,800A, 800B, 800C, 800D, 800E) according to any one of claim 1 to 11,
Wherein, the primary sealing area is radial sealing surfaces, and the secondary sealing area is close for the axial direction adjacent with the primary sealing area
Front cover, the primary sealing area is adapted to abut against the outer radial periphery wall (GVa) or radially inner circumference wall (GVb) of the groove, described
Two sealing surfaces are adapted to abut against the axial direction of the another one for being not provided with the groove in the first component and the second component
End face (243a).
14. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to any one of claim 1 to 7,
Wherein：
The screw compressor is high-pressure side screw compressor, and the first component is the main bearing seat of the screw compressor
(400), the second component for the screw compressor can be moved between fully loaded position and unloading position it is dynamic
Scroll element (240)；Or
The screw compressor is low-pressure side screw compressor, and the first component is the acoustical panel of the screw compressor
(500), the second component for the screw compressor can be moved between fully loaded position and unloading position determine
Scroll element (220).
15. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to claim 14, wherein, described
First component be the main bearing seat (400) and in the case that the second component is the dynamic vortex part (240), it is described recessed
Groove (GV) in a ring and is formed at support (420) place for being provided with base bearing (440) of the main bearing seat, so as to by shape
It is used as back pressure chamber between the main bearing seat and the dynamic vortex part and positioned at the seal assembly radial outside
(BC) middle intermediate pressure section (MP) and it is formed approximately between the main bearing seat and the dynamic vortex part and positioned at the sealing
The high-pressure area (HP) with discharge pressure of component radially inner side is separated.
16. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to claim 15, wherein, described
One sealing surface is radial sealing surfaces, and the secondary sealing area is the axial seal face adjacent with the primary sealing area, described the
One sealing surface is adapted to abut against the outer radial periphery wall (GVa) or radially inner circumference wall (GVb) of the groove, and the secondary sealing area is suitable to
Against the axial end (243a) in the hub portion (242) of the dynamic vortex part.
17. seal assembly (800) according to claim 16, wherein, the seal assembly also includes being suitable to bias force
Apply to the biasing member (860) of the supporting member and the centre being arranged between the supporting member and the biasing member
Bearing support (880), the biasing member abuts the bottom wall (GVc) of the groove, so as to will be biased via the intermediate support frame
Power applies to the supporting member so that the primary sealing area is resisted against the outer radial periphery wall.
18. seal assembly (800,800A, 800B, 800C, 800D, 800E) according to claim 16, wherein, the hub
Portion is formed with the flange part (243) that the axial end from the hub portion extends radially outward, and the axial end is institute
State the axial end of flange part.
19. the seal assembly (800,800A, 800B, 800C, 800D, 800E) according to any one of claim 1 to 11,
Wherein, internal in the housing (100) of the screw compressor, being formed between the first component and the second component has
Multiple pressure spans (HP, MP, LP) of different pressures, the seal assembly is arranged to will be adjacent in the multiple pressure span
Two pressure spans are separated.
20. a kind of screw compressor (10), wherein, the screw compressor is included as any one of claim 1 to 19
Seal assembly (800,800A, 800B, 800C, 800D, 800E).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610031065.1A CN106979158B (en) | 2016-01-18 | 2016-01-18 | Seal assembly and scroll compressor including the same |
| PCT/CN2017/071389 WO2017124999A1 (en) | 2016-01-18 | 2017-01-17 | Seal assembly and scroll compressor comprising seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610031065.1A CN106979158B (en) | 2016-01-18 | 2016-01-18 | Seal assembly and scroll compressor including the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106979158A true CN106979158A (en) | 2017-07-25 |
| CN106979158B CN106979158B (en) | 2019-12-31 |
Family
ID=59339893
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610031065.1A Active CN106979158B (en) | 2016-01-18 | 2016-01-18 | Seal assembly and scroll compressor including the same |
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| Country | Link |
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| CN (1) | CN106979158B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH029976A (en) * | 1988-06-28 | 1990-01-12 | Daikin Ind Ltd | Scroll type fluid device |
| JPH0797993A (en) * | 1993-09-28 | 1995-04-11 | Sanden Corp | Scroll compressor |
| JPH08232858A (en) * | 1995-02-27 | 1996-09-10 | Mitsubishi Electric Corp | Scroll compressor |
| JP2001248575A (en) * | 2000-03-06 | 2001-09-14 | Fujitsu General Ltd | Scroll compressor |
| JP2002031068A (en) * | 2000-07-19 | 2002-01-31 | Fujitsu General Ltd | Scroll compressor |
| KR20050082634A (en) * | 2004-02-19 | 2005-08-24 | 엘지전자 주식회사 | Back pressure sealing apparatus for high-pressure type scroll compressor |
| CN101240850A (en) * | 2007-02-07 | 2008-08-13 | 财团法人工业技术研究院 | Sealing structure and its spacer component |
| CN204692086U (en) * | 2015-02-04 | 2015-10-07 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
| CN205478314U (en) * | 2016-01-18 | 2016-08-17 | 艾默生环境优化技术(苏州)有限公司 | Seal assembly and scroll compressor including the same |
-
2016
- 2016-01-18 CN CN201610031065.1A patent/CN106979158B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH029976A (en) * | 1988-06-28 | 1990-01-12 | Daikin Ind Ltd | Scroll type fluid device |
| JPH0797993A (en) * | 1993-09-28 | 1995-04-11 | Sanden Corp | Scroll compressor |
| JPH08232858A (en) * | 1995-02-27 | 1996-09-10 | Mitsubishi Electric Corp | Scroll compressor |
| JP2001248575A (en) * | 2000-03-06 | 2001-09-14 | Fujitsu General Ltd | Scroll compressor |
| JP2002031068A (en) * | 2000-07-19 | 2002-01-31 | Fujitsu General Ltd | Scroll compressor |
| KR20050082634A (en) * | 2004-02-19 | 2005-08-24 | 엘지전자 주식회사 | Back pressure sealing apparatus for high-pressure type scroll compressor |
| CN101240850A (en) * | 2007-02-07 | 2008-08-13 | 财团法人工业技术研究院 | Sealing structure and its spacer component |
| CN204692086U (en) * | 2015-02-04 | 2015-10-07 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor having a plurality of scroll members |
| CN205478314U (en) * | 2016-01-18 | 2016-08-17 | 艾默生环境优化技术(苏州)有限公司 | Seal assembly and scroll compressor including the same |
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| Publication number | Publication date |
|---|---|
| CN106979158B (en) | 2019-12-31 |
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