CN102953989B - Floating scroll compressor - Google Patents
Floating scroll compressor Download PDFInfo
- Publication number
- CN102953989B CN102953989B CN201210491592.2A CN201210491592A CN102953989B CN 102953989 B CN102953989 B CN 102953989B CN 201210491592 A CN201210491592 A CN 201210491592A CN 102953989 B CN102953989 B CN 102953989B
- Authority
- CN
- China
- Prior art keywords
- vortex
- floating disc
- upper support
- communicated
- pressure chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Rotary Pumps (AREA)
Abstract
The invention discloses a floating scroll compressor. The floating scroll compressor comprises a fixed scroll, a movable scroll, a cross ring, an upper support, a crankshaft, a motor rotor, a motor stator and a floating disk which are arranged in a compressor casing, wherein the floating disk is arranged between the movable scroll and the upper support; an annular pressure chamber is arranged between the bottom surface of the floating disk and the upper surface of the upper support; the floating disk moves along the movable scroll; and a pressure enclosing channel communicated with a compression chamber or a high-pressure chamber is arranged in the annular pressure chamber. The floating scroll compressor disclosed by the invention has the beneficial effects that the pressure chamber is sealed by a sealing element; the structural design is simple and the sealing element is wide in selective range; in the starting process of the compressor, a starting load can be reduced; and the floating disk and the movable scroll move together, so that the reducing effect of the radial distance is remarkable and the tooth side leakage is remarkably reduced.
Description
Technical field
The invention belongs to scroll compressor field, particularly relate to scroll compressor tooth top, flank sealing configuration.
Background technique
Existing scroll compressor comprise be provided with spirality scroll wrap determine vortex with determine the dynamic vortex being provided with spirality scroll wrap that vortex matches and dynamic vortex and on support between the partition ring that moves, partition ring and respectively with dynamic, determining that vortex coordinates and limit them can only relative translational movement, by dynamic vortex with determine multiple compression chambers that vortex has complemented each other to form variable volume, move vortex by driven by motor crank-driven to revolve round the sun along its revolution orbit, thus complete the suction of gas, compression and discharge.In order to raise the efficiency, must make to fit the tooth top reduced between adjacent compression chamber closely at the bottom of the vortex tooth top of scroll members and the tooth of another scroll and leaking.
Leak for fitting the tooth top reduced between adjacent compression chamber closely at the bottom of the tooth of the vortex tooth top and another scroll that make scroll members, in prior art, name be called " a kind of scroll compressor with floating disc " patented technology propose dynamic vortex and on support between establish the structure of floating disc, the floating disc of this structure is loaded on and supports, form annular intermediate pressure cavity between floating disc bottom surface and upper support bottom surface, annular intermediate pressure cavity is communicated with compression chamber by impulse passage.This structure to some extent solves the tooth top leakage problem between adjacent compression chamber.
The deficiencies in the prior art are: although solve the tooth top leakage problem between adjacent compression chamber to a certain extent, but its annular intermediate pressure cavity configuration is more complicated, impulse passage is only in upper support with determine on vortex, and the space of selection is little, and the leakage problem of flank also fails effectively to be solved simultaneously.
Summary of the invention
The object of the invention is to solve the above-mentioned problems in the prior art, what propose a kind of improvement can reduce the scroll compressor that tooth top leaks and flank leaks simultaneously.
To achieve these goals, technological scheme of the present invention is as follows: a kind of scroll compressor that floats, comprise being arranged on and determine vortex in compressor housing, dynamic vortex, partition ring, upper support, bent axle, rotor and motor stator, determine vortex to be fixed on and to support, dynamic vortex, partition ring is arranged on to be determined between vortex and upper support, dynamic vortex is by crank-driven, rotor is arranged on bent axle, move vortex and determine vortex and complement each other to form multiple compression chamber, dynamic vortex and on support between be provided with floating disc, floating disc is the dish of disk structure, sealing configuration is provided with between floating disc and upper support, sealing configuration floating disc bottom surface and on support between upper surface and form annular pressure chamber, the upper surface of floating disc and the bottom surface of dynamic vortex connect, axis hole is provided with in the middle part of floating disc, floating disc is loaded on dynamic vortex crank, floating disc compliant scroll moves and moves, it is characterized in that:
Described annular pressure chamber is provided with the impulse passage be communicated with compression chamber or hyperbaric chamber;
Described annular pressure chamber is any one in annular pressure chamber A, annular pressure chamber B and annular pressure chamber C: described annular pressure chamber A comprises following two kinds of forms:
A) the upper upper surface that supports offers two annular grooves, places Sealing A and Sealing B in annular groove, upper support upper surface, floating disc bottom surface, forms annular pressure chamber A between Sealing A and Sealing B;
B) two annular grooves are offered in floating disc bottom surface, place Sealing C and Sealing D in annular groove, upper support upper surface, floating disc bottom surface, form annular pressure chamber A between Sealing C and Sealing D;
Described annular pressure chamber B is made up of following form: an annular groove is offered in floating disc bottom surface, places Sealing E in annular groove, and the shape of Sealing E is matrix, forms annular pressure chamber B between upper support upper surface and Sealing E;
Described annular pressure chamber C is made up of following form: above support upper surface and offer an annular groove, place Sealing F in annular groove, the shape of Sealing F is matrix, forms annular pressure chamber C between floating disc bottom surface and Sealing F.
One of the present invention is floated scroll compressor, it is characterized in that: the impulse passage that described annular pressure chamber is communicated with compression chamber is any one in following two kinds of modes: a) by upper support impulse passage with determine vortex impulse passage A and be communicated with compression chamber, b) be communicated with compression chamber with floating disc impulse passage by dynamic vortex impulse passage, described is by being arranged on upper support and the upper support impulse passage on dynamic vortex and determining vortex impulse passage A and be communicated with by upper support impulse passage with determining that vortex impulse passage A is communicated with compression chamber, described upper support impulse passage end is communicated with the annular pressure chamber formed between floating disc bottom surface and upper support bottom surface, the other end with determine vortex impulse passage A and be communicated with, described determine vortex impulse passage A one end and upper support impulse passage determine vortex with on support on surface of contact and be communicated with, the other end and dynamic vortex with determine the compression chamber that vortex complements each other to form and be communicated with, described connection with compression chamber with floating disc impulse passage by dynamic vortex impulse passage is communicated with compression chamber with floating disc impulse passage with the dynamic vortex impulse passage on floating disc by being arranged on dynamic vortex, described dynamic vortex impulse passage end is communicated with on the face that dynamic vortex contacts with floating disc with floating disc impulse passage, the other end and dynamic vortex with determine the compression chamber that vortex complements each other to form and be communicated with, described floating disc impulse passage end is communicated with the annular pressure chamber formed between floating disc bottom surface and upper support bottom surface, the other end on the face that dynamic vortex contacts with floating disc with dynamic vortex impulse channel connection.
One of the present invention is floated scroll compressor, it is characterized in that: the described impulse passage be communicated with hyperbaric chamber for by upper support impulse passage with determine vortex impulse channel B with hyperbaric chamber and be communicated with, described upper support impulse passage end is communicated with the annular pressure chamber formed between floating disc bottom surface and upper support bottom surface, the other end with determine vortex impulse channel B and be communicated with, described determine vortex impulse channel B one end and upper support impulse passage determine vortex with on support on surface of contact and be communicated with, the other end is communicated with hyperbaric chamber.
One of the present invention is floated scroll compressor, it is characterized in that: described upper support impulse passage, determine vortex impulse passage A, determine vortex impulse channel B, dynamic vortex impulse passage and floating disc impulse passage be one or more.
Floating scroll compressor of the present invention, is characterized in that: there is gap between described floating disc shaft hole diameter and dynamic vortex crank external diameter, gap width is 0 ~ 50mm.
Working principle of the present invention is as follows: when compressor start, and along with the rotation of dynamic vortex, the pressure in compression chamber raises.By dynamic for promotion vortex with determine vortex and separate a segment distance, a part of compressed fluid in compression chamber can driven vortex with determine the tooth top of vortex to external leakage, thus reduction starting duty.Meanwhile, along with the pressure in compression chamber raises, compressive flow know from experience by determine impulse passage A on vortex and on the impulse passage that supports enter the annular pressure chamber surrounded by floating disc and upper support, the pressure in annular pressure chamber is raised.Pressure in annular pressure chamber acts on floating disc, changes into the support force of floating disc for dynamic vortex, and direction is axially upwards.When this support force be greater than suffered by dynamic vortex other axially downward make a concerted effort time, dynamic for promotions vortex is close to by floating disc determines vortex, makes vortex and determines close contact at the bottom of the tooth top of vortex and the tooth of opposed scroll, making compression chamber obtain good tooth top and seal; Simultaneously due to the rotation along with dynamic vortex, floating disc also rotates thereupon, produces centrifugal force, and this centrifugal force makes vortex and determines the flank close contact of vortex, and compression chamber obtains good flank sealing.
Compared with prior art, the present invention has following beneficial effect:
1, pressure chamber of the present invention needs to use Sealing to seal, and Sealing can be one or more, and Sealing can be arranged on support or floating ring, and structural design is simple, and Sealing choice is large.
2, before dynamic vortex floats scroll compressor starting, move vortex and determine vortex and normally open a bit of distance in axis, radial separation.In compressor start process, the fluid in compression chamber can be let out by axial, radial clearance, produces the effect of unloading when starting, and reduces starting duty.Common dynamic vortex floating structure, although can be floated the Distance Shortened of axis to as far as possible little by dynamic vortex, but realize the centrifugal force that can only be subject to by scroll that reduces of the distance of radial direction, sometimes because centrifugal force is less than normal, that causes radial distance reduces DeGrain.Structure in the present invention, floating disc moves together with dynamic vortex, not only has obvious effect to the reducing of distance of radial direction, and centrifugal force obviously increases simultaneously, and what make radial distance reduces successful, and flank leaks and obviously reduces.
Accompanying drawing explanation
The present invention has 7 width accompanying drawings.Wherein:
Fig. 1 is the structural representation of floating scroll compressor of the present invention;
Fig. 2 is the partial structurtes view of floating scroll compressor relocation mechanism of the present invention;
Fig. 3 is the sealed structural representation of embodiments of the invention two;
Fig. 4 be embodiments of the invention three determine vortex impulse access diagram;
Fig. 5 is the floating disc of embodiments of the invention four, dynamic vortex impulse access diagram;
Fig. 6 is the sealed structural representation of embodiments of the invention five;
Fig. 7 is the sealed structural representation of embodiments of the invention six;
In figure: 1, determine vortex, 2, dynamic vortex, 3, partition ring, 4, upper support, 5, bent axle, 6, rotor, 7, motor stator, 8, floating disc, 9, compression chamber, 10, determine vortex impulse passage A, 11, upper support impulse passage, 12, pressure chamber A, 13, Sealing A, 14, Sealing B, 15, dynamic vortex crank, 16, floating disc bottom surface, 17, upper support upper surface, 18, floating disc upper surface, 19, the bottom surface of dynamic vortex, 20, Sealing C, 21, Sealing D, 22, determine vortex impulse channel B, 23, hyperbaric chamber, 24, dynamic vortex impulse passage, 25, floating disc impulse passage, 26, Sealing E, 27, pressure chamber B, 28, pressure chamber C, 29, Sealing F.
Embodiment
Embodiment below in conjunction with accompanying drawing describes further to the present invention.As shown in Figure 1, floating scroll compressor mainly comprises and determines vortex 1, dynamic vortex 2, partition ring 3, upper support 4, bent axle 5, rotor 6, motor stator 7, floating disc 8.Determine vortex 1 and complement each other to form multiple compression chamber 9 with dynamic vortex 2, be provided with partition ring 3 at dynamic vortex 2 dorsal part and determine vortex 1 and dynamic vortex 2 coordinates, make vortex 2 relatively can only determine vortex 1 translation, bent axle 5 is driven by rotor 6 by motor stator 7, bent axle 5 drives dynamic vortex 2 to move along orbit plane, thus completes the air-breathing of compression working medium, compression, exhaust process.Floating disc 8 has upper surface 18, contacts with the bottom surface 19 of dynamic vortex 2.Floating disc 8 is loaded on dynamic vortex 2 crank 15, and when compressor operating, floating disc 8 compliant scroll 2 moves and moves, and provides axially support power upwards and radial centrifugal force by floating disc 8 to dynamic vortex 2.
Embodiment 1
As shown in Figure 2, dynamic vortex 2 and on support between 4 and be provided with floating disc 8, upper support upper surface 17 offers two annular grooves, Sealing A13 and Sealing B14 is placed in annular groove, upper support upper surface 17, floating disc bottom surface 16, annular pressure chamber A12 is formed between Sealing A13 and Sealing B14, pressure chamber A12 connection supports impulse passage 11, the another port of upper support impulse passage 11 with determine on vortex 1 determine vortex impulse passage A10 determine vortex 1 with on support on 4 surface of contact and be communicated with, the another port of determining vortex impulse passage A10 and dynamic vortex 2 with determine the compression chamber 9 that vortex 1 complements each other to form and be communicated with.
Embodiment 2
Fig. 3 gives the embodiment of the another kind of sealing configuration between floating disc 8 and upper support 4, its structure is as shown in Figure 3: dynamic vortex 2 and on support 4 between be provided with floating disc 8, two annular grooves are offered in floating disc bottom surface 16, place Sealing C20 and Sealing D21 in annular groove, upper support upper surface 17, floating disc bottom surface 16, between Sealing C20 and Sealing D21, form annular pressure chamber A12.
Embodiment 3
The another kind that Fig. 4 gives pressure introduction passage in pressure chamber A12 offers the embodiment of form, its structure is as shown in Figure 4: pressure chamber A12 connection supports impulse passage 11, the another port of upper support impulse passage 11 with determine on vortex 1 determine vortex impulse channel B 22 determine vortex 1 with on support on 4 surface of contact and be communicated with, the another port of determining vortex impulse channel B 22 is communicated with compressor hyperbaric chamber 23.
Embodiment 4
The another kind that Fig. 5 gives pressure introduction passage in pressure chamber A12 offers the embodiment of form, its structure is as shown in Figure 5: pressure chamber A12 is communicated with floating disc impulse passage 25, the another port of floating disc impulse passage 25 is communicated with on dynamic vortex 2 surface of contact at floating disc 8 with the dynamic vortex impulse passage 24 on dynamic vortex 2, the another port of dynamic vortex impulse passage 24 and dynamic vortex 2 with determine the compression chamber 9 that vortex 1 complements each other to form and be communicated with.
Embodiment 5
Fig. 6 gives the embodiment of the another kind of sealing configuration between floating disc 8 and upper support 4, its structure is as shown in Figure 6: dynamic vortex 2 and on support 4 between be provided with floating disc 8, an annular groove is offered in floating disc bottom surface 16, Sealing E26 is placed in annular groove, the shape of Sealing E26 is matrix, forms annular pressure chamber B27 between upper support upper surface 17 and Sealing E26.
Embodiment 6
Fig. 7 gives the embodiment of the another kind of sealing configuration between floating disc 8 and upper support 4, its structure is as shown in Figure 7: dynamic vortex 2 and on support 4 between be provided with floating disc 8, upper support upper surface 17 offers an annular groove, Sealing F29 is placed in annular groove, the shape of Sealing F29 is matrix, forms annular pressure chamber C28 between floating disc bottom surface 16 and Sealing F29.
Claims (3)
1. a floating scroll compressor, comprise being arranged on and determine vortex (1) in compressor housing, dynamic vortex (2), partition ring (3), upper support (4), bent axle (5), rotor (6) and motor stator (7), determining vortex (1) is fixed in support (4), dynamic vortex (2), partition ring (3) is arranged on to be determined between vortex (1) and upper support (4), dynamic vortex (2) is driven by bent axle (5), rotor (6) is arranged on bent axle (5), move vortex (2) and determine vortex (1) and complement each other to form multiple compression chamber (9), floating disc (8) is provided with between dynamic vortex (2) and upper support (4), the dish that floating disc (8) is disk structure, sealing configuration is provided with between floating disc (8) and upper support (4), sealing configuration forms annular pressure chamber between floating disc bottom surface (16) and upper support upper surface (17), the upper surface (18) of floating disc (8) and the bottom surface (19) of dynamic vortex (2) connect, floating disc (8) middle part is provided with axis hole, floating disc (8) is loaded on dynamic vortex (2) crank (15), floating disc (8) compliant scroll (2) moves and moves, it is characterized in that:
Described annular pressure chamber is provided with the impulse passage be communicated with compression chamber (9) or hyperbaric chamber (23);
Described annular pressure chamber is annular pressure chamber A (12), any one in annular pressure chamber B (27) and annular pressure chamber C (28): described annular pressure chamber A (12) comprises following two kinds of forms:
A) support upper surface (17) on and offer two annular grooves, place Sealing A (13) and Sealing B (14) in annular groove, upper support upper surface (17) and floating disc bottom surface (16), between Sealing A (13) and Sealing B (14), form annular pressure chamber A (12);
B) floating disc bottom surface (16) offer two annular grooves, place Sealing C (20) and Sealing D (21) in annular groove, upper support upper surface (17), floating disc bottom surface (16), form annular pressure chamber A (12) between Sealing C (20) and Sealing D (21);
Described annular pressure chamber B (27) is made up of following form: floating disc bottom surface (16) offer an annular groove, Sealing E (26) is placed in annular groove, the shape of Sealing E (26) is matrix, forms annular pressure chamber B (27) between upper support upper surface (17) and Sealing E (26);
Described annular pressure chamber C (28) is made up of following form: above support upper surface (17) and offer an annular groove, Sealing F (29) is placed in annular groove, the shape of Sealing F (29) is matrix, forms annular pressure chamber C (28) between floating disc bottom surface (16) and Sealing F (29);
The impulse passage that described annular pressure chamber is communicated with compression chamber (9) is any one in following two kinds of modes: a) by upper support impulse passage (11) with determine vortex impulse passage A (10) and be communicated with compression chamber (9), b) be communicated with compression chamber (9) with floating disc impulse passage (25) by dynamic vortex impulse passage (24), described is by being arranged on upper support (4) and the upper support impulse passage (11) on dynamic vortex (1) and determining vortex impulse passage A (10) and be communicated with by upper support impulse passage (11) with determining that vortex impulse passage A (10) is communicated with compression chamber (9), described upper support impulse passage (11) one end is communicated with the annular pressure chamber formed between floating disc bottom surface and upper support bottom surface, the other end with determine vortex impulse passage A (10) and be communicated with, describedly determine vortex impulse passage A (10) one end and upper support impulse passage (11) determining vortex (1) and be communicated with on upper support (4) surface of contact, the other end and dynamic vortex (2) with determine the compression chamber (9) that vortex (1) complements each other to form and be communicated with, described connection with compression chamber (9) with floating disc impulse passage (25) by dynamic vortex impulse passage (24) is communicated with compression chamber (9) with floating disc impulse passage (25) with the dynamic vortex impulse passage (24) on floating disc (8) by being arranged on dynamic vortex (2), described dynamic vortex impulse passage (24) one end is communicated with on the face that dynamic vortex (2) contacts with floating disc (8) with floating disc impulse passage (25), the other end and dynamic vortex (2) with determine the compression chamber (9) that vortex (1) complements each other to form and be communicated with, described floating disc impulse passage (25) one end is communicated with the annular pressure chamber formed between floating disc bottom surface and upper support bottom surface, the other end is communicated with dynamic vortex impulse passage (24) on the face that dynamic vortex (2) contacts with floating disc (8).
2. a kind of scroll compressor that floats according to claim 1, it is characterized in that: the described impulse passage be communicated with hyperbaric chamber (23) for by upper support impulse passage (11) with determine vortex impulse channel B (22) with hyperbaric chamber (23) and be communicated with, described upper support impulse passage (11) one end is communicated with the annular pressure chamber formed between floating disc bottom surface and upper support bottom surface, the other end with determine vortex impulse channel B (22) and be communicated with, describedly determine vortex impulse channel B (22) one end and upper support impulse passage (11) determining vortex (1) and be communicated with on upper support (4) surface of contact, the other end is communicated with hyperbaric chamber (23).
3. one according to claim 2 is floated scroll compressor, it is characterized in that: described upper support impulse passage (11), determine vortex impulse passage A (10), determine vortex impulse channel B (22), dynamic vortex impulse passage (24) and floating disc impulse passage (25) be one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491592.2A CN102953989B (en) | 2012-11-27 | 2012-11-27 | Floating scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210491592.2A CN102953989B (en) | 2012-11-27 | 2012-11-27 | Floating scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102953989A CN102953989A (en) | 2013-03-06 |
| CN102953989B true CN102953989B (en) | 2015-07-15 |
Family
ID=47763239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210491592.2A Active CN102953989B (en) | 2012-11-27 | 2012-11-27 | Floating scroll compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102953989B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806520B (en) * | 2014-01-24 | 2017-04-19 | 艾默生环境优化技术(苏州)有限公司 | Scroll compression assembly, scroll compressor and fixed scroll and movable scroll |
| JP6274281B1 (en) * | 2016-08-31 | 2018-02-07 | ダイキン工業株式会社 | Scroll compressor |
| CN108050060B (en) * | 2017-10-24 | 2024-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor |
| CN112343816B (en) * | 2020-10-27 | 2022-07-26 | 南京迪升动力科技有限公司 | Bidirectional floating pressing mechanism for reducing friction of moving turbine disc |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5040956A (en) * | 1989-12-18 | 1991-08-20 | Carrier Corporation | Magnetically actuated seal for scroll compressor |
| JP2002098073A (en) * | 2000-09-20 | 2002-04-05 | Mitsubishi Heavy Ind Ltd | Scroll compressor |
| JP4614009B1 (en) * | 2009-09-02 | 2011-01-19 | ダイキン工業株式会社 | Scroll compressor |
| CN101749235B (en) * | 2009-12-22 | 2011-08-24 | 大连三洋压缩机有限公司 | Scroll compressor with floating disc |
| CN101761477B (en) * | 2009-12-22 | 2011-12-14 | 大连三洋压缩机有限公司 | Scroll compressor |
| CN102678564A (en) * | 2011-03-09 | 2012-09-19 | 上海日立电器有限公司 | Axial double-floating structure of scroll compressor |
| CN102330678B (en) * | 2011-09-16 | 2013-12-11 | 大连三洋压缩机有限公司 | Moving volution floating volution type compressor |
-
2012
- 2012-11-27 CN CN201210491592.2A patent/CN102953989B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102953989A (en) | 2013-03-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104364529B (en) | Scroll compressor | |
| CN102953989B (en) | Floating scroll compressor | |
| CN203783900U (en) | Airtight rotating compressor | |
| CN103814221A (en) | Scroll compressor with supporting member in axial direction | |
| CN101761477B (en) | Scroll compressor | |
| CN101749235B (en) | Scroll compressor with floating disc | |
| KR20080047295A (en) | Vane pump | |
| CN101413504B (en) | Vortex compressor with floating seal and high pressure unloading functions | |
| CN201568301U (en) | Vortex type compressor with floating disc | |
| CN201568300U (en) | Vortex compressor | |
| CN204113649U (en) | A kind of axial elasticity sealing configuration scroll compressor | |
| CN104019024A (en) | Leakproof dynamic pressure type valve plate | |
| JP2010249045A (en) | Screw compressor | |
| CN104791250A (en) | Scroll refrigerating compressor with scroll plates adopting micro-groove end surface sealing structures | |
| CN103388580B (en) | Split mechanical seal and the two screw pump of Split mechanical seal is housed | |
| CN201321979Y (en) | Scroll compressor with floating seal and high-pressure unloading functions | |
| CN203404079U (en) | Scroll compressor having a plurality of scroll members | |
| CN104295493A (en) | Scroll compressor with axially flexible sealed structure | |
| CN204140400U (en) | Multi-cylinder rotary compressor | |
| CN208330751U (en) | Become the swirl type cold compressor of vent ports size | |
| CN210050036U (en) | Scroll compressor with seal assembly of sound attenuation structure and fixed with diaphragm plate | |
| CN108547770B (en) | Vortex refrigerating compressor with variable exhaust hole size | |
| CN105065679A (en) | Oil seal structure for supercharger | |
| CN113124168A (en) | Waterproof oil-separating sealing device | |
| CN205446159U (en) | High -efficient double suction centrifugal pump structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 116600 Dalian economic and Technological Development Zone, Liaoning Pine Street, No. 8 Applicant after: PANASONIC APPLIANCES COMPRESSOR (DALIAN) CO.,LTD. Address before: 116033, No. 8 Song Lan street, Dalian economic and Technological Development Zone, Liaoning, China Applicant before: DALIAN SANYO COMPRESSOR Co.,Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: DALIAN SANYO COMPRESSOR CO., LTD. TO: PANASONIC APPLIANCES COMPRESSOR (DALIAN) CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 116600 No. 8 Songlan Street, Dalian Economic and Technological Development Zone, Liaoning Province Patentee after: Bingshan Songyang Compressor (Dalian) Co.,Ltd. Address before: 116600 No. 8 Songlan Street, Dalian Economic and Technological Development Zone, Liaoning Province Patentee before: PANASONIC APPLIANCES COMPRESSOR (DALIAN) CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |