CN104373346A - Scroll-compressor and medium pressure cavity sealing method and sealing device - Google Patents
Scroll-compressor and medium pressure cavity sealing method and sealing device Download PDFInfo
- Publication number
- CN104373346A CN104373346A CN201310353427.5A CN201310353427A CN104373346A CN 104373346 A CN104373346 A CN 104373346A CN 201310353427 A CN201310353427 A CN 201310353427A CN 104373346 A CN104373346 A CN 104373346A
- Authority
- CN
- China
- Prior art keywords
- sealing
- frame
- orbiter
- sealing component
- scroll compressor
- 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.)
- Pending
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Classifications
-
- 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
- F04C27/005—Axial sealings for working fluid
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/008—Hermetic pumps
-
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a scroll compressor and a medium pressure cavity sealing method and sealing device. The scroll compressor includes a scroll compressor casing; a frame, which is arranged in the scroll compressor casing; a static scroll plate fixed on the frame; a movable scroll plate which is rotatably supported on the frame and connected with the static scroll plate; an actuating mechanism which is located between the movable scroll plate and the frame and is connected with the movable scroll plate to drive the movable scroll plate to rotate; and a medium pressure cavity which is a cavity surrounded by a hub parts of the movable scroll plate and a portion of the frame; and the medium pressure cavity is sealed by two sealing components arranged on the frame.
Description
Technical field
The present invention relates to field of Refrigeration and Air-conditioning, especially scroll compressor and wherein press encapsulating method and the seal arrangement in chamber.
Background technique
Current, in the design of the high pressure side of compressor, mainly take the middle pressure chamber that two kinds of modes are come in hermetic compressor.
In first kind of way, middle pressure chamber is positioned between thrust bearing (between orbiter and fixed scroll) and seal ring (bottom at orbiter hub).In such design, the thrust bearing between orbiter and fixed scroll serves the effect of sealing.
In this fashion, the surface of thrust bearing is in order to for sealing, and need high machining accuracy, this makes the cost of thrust bearing very high.Further, in this fashion, and sealing reliability good not.Sealing integrity problem is that will have tolerance between dynamic and static scroll, this will cause the leakage on thrust bearing because when dynamic and static scroll works together.If use this thrust bearing as the Sealing in middle pressure chamber, the risk of so will chamber be pressed to be connected with low-pressure cavity in existence, thus cause the performance of compressor good not.
In the second way, middle pressure chamber is positioned between thrust bearing (between orbiter and fixed scroll) and seal ring (bottom at orbiter hub).Fixed scroll is provided with seal ring.
In this fashion, because seal ring is arranged on fixed scroll, when they are assembled into compressor, there is the risk (integrity problem) that seal ring lost efficacy.
Summary of the invention
Object of the present invention is intended at least one aspect solving the above-mentioned problems in the prior art and defect.
According to an aspect of the present invention, provide a kind of scroll compressor, comprising:
Scroll compression engine housing;
Frame, described frame is arranged in scroll compression engine housing;
Fixed scroll, described fixed scroll is fixed in described frame;
Orbiter, described orbiter to be supported on rotationally in described frame and to engage with described fixed scroll;
Actuating mechanism, described actuating mechanism is connected to drive described orbiter to rotate between orbiter with frame and with described orbiter,
Middle pressure chamber, for by the hub portion of described orbiter and a part for frame around the cavity formed, wherein, described middle pressure chamber is sealed by two sealing components be arranged in frame.
Further, the position that the outer end that the first sealing component in described two sealing components is positioned at the disc main body lower surface of orbiter contacts with the first portion of described upper rack, and the position that the bottom that the second sealing component is wherein positioned at the hub portion of orbiter contacts with the second portion of described frame lower.
Further, described first sealing component and described second sealing component are all arranged in the groove of the first and second parts of described frame.
Further, described first sealing component is elastic rubber sealing ring or Teflon seal ring; Described second sealing component is elastic rubber sealing ring or Teflon seal ring.
Further, the shape of described first sealing component is C shape or X-shaped; The shape of described second sealing component is C shape or X-shaped.
Further, described scroll compressor is hyperbaric chamber compressor.
According to a further aspect in the invention, provide a kind of method sealing the middle pressure chamber of above-mentioned scroll compressor, described method comprises step:
Use the described middle pressure chambeies of two sealing components sealing, wherein said middle pressure chamber is around the cavity formed by the hub portion of the orbiter of described scroll compressor and a part for frame.
Further, the position that the outer end of disc main body lower surface that the first sealing component in described two sealing components is positioned at orbiter contacts with the first portion of upper rack, and the position that the bottom in hub portion that the second sealing component is wherein positioned at orbiter contacts with the second portion of frame lower.
Further, described first and second sealing component portions are arranged in the groove of the first and second parts of frame.
Further, described first sealing component is elastic rubber sealing ring or Teflon seal ring; Described second sealing component is elastic rubber sealing ring or Teflon seal ring.
Further, the shape of described first sealing component is C shape or X-shaped; The shape of described second sealing component is C shape or X-shaped.
According to a further aspect in the invention, provide a kind of seal arrangement of the middle pressure chamber sealed in scroll compressor, comprising:
Two sealing components, press chamber for sealing in described scroll compressor, and wherein said middle pressure chamber is around the cavity formed by the hub portion of the orbiter of described scroll compressor and a part for frame.
Further, the position that the outer end of disc main body lower surface that the first sealing component in described two sealing components is positioned at orbiter contacts with the first portion of upper rack, and the position that the bottom in hub portion that the second sealing component is wherein positioned at orbiter contacts with the second portion of frame lower.
Further, described first and second sealing components are all arranged in the groove of the first and second parts of frame.
Further, described first sealing component is elastic rubber sealing ring or Teflon seal ring; Described second sealing component is elastic rubber sealing ring or Teflon seal ring.
Further, the shape of described first sealing component is C shape or X-shaped; The shape of described second sealing component is C shape or X-shaped.
Usually only a sealing component is adopted in prior art.Deficiency in situation described in prior art, the present invention devises the design of a kind of double-sealing, and it adopts two sealing components, such as seal rings.On the rack section that the outer end that one of them seal ring is positioned at the disc main body lower surface of orbiter contacts with frame (between frame and orbiter), another seal ring be positioned at orbiter hub portion bottom and with orbiter hub bottom connection touch rack section on.
In the present invention, owing to adopting the design of described double-sealing, avoid axial bearing surface in prior art described in the first Seal Design due to the integrity problem in the function of sealing and required high machining accuracy and leakage problem and the second Seal Design will be played.In sealing arrangement of the present invention, thrust bearing does not need high machining accuracy, thus reduces cost.Seal ring is arranged in frame, because this eliminating associated integrity problem.The first and second sealing situations compared to existing technology, the present invention presses the surface in chamber in can also increasing, its career field for increase compressor is important.
Accompanying drawing explanation
These and/or other aspect of the present invention and advantage will become obvious and easy understand below in conjunction with in accompanying drawing description of preferred embodiments, wherein:
Fig. 1 is the overall cross section view of the scroll compressor according to the embodiment of the present invention;
Fig. 2 is the zoomed-in view of the dotted line frame A in Fig. 1.
Embodiment
Below by embodiment, and 1-2 by reference to the accompanying drawings, technological scheme of the present invention is described in further detail.In the description, same or analogous drawing reference numeral indicates same or analogous parts.The explanation of following reference accompanying drawing to embodiment of the present invention is intended to make an explanation to present general inventive concept of the present invention, and not should be understood to one restriction of the present invention.
Below with reference to the accompanying drawings scroll compressor is according to an embodiment of the invention described.
As shown in Figure 1, that show the present invention's a kind of scroll compressor 100 of the prior art.This scroll compressor 100 comprises: scroll compression engine housing 1; Frame 2, this frame 2 is fixed in scroll compression engine housing 1; Fixed scroll 3, it is fixed in frame 2; Orbiter 4, it to be supported on rotationally in frame 2 and to engage to form gas compression room 11 with fixed scroll 3; Lower support frame 5, is fixed on the lower end of compressor housing 1; Actuating mechanism 7, between orbiter 4 and frame 2, it transmits rotatory force by crank mechanism 71.The upper end of crank mechanism 71 is connected with orbiter 4 to fetch and drives orbiter 4 to rotate, and its lower end is supported on lower support frame 5; Escape cock (not shown), prevents gas backstreaming in scroll compressor 100 for the gas in exhausting air pressing chamber 11.
Orbiter 4 supported by the upper surface of frame 2 or supporting surface; Scroll compression engine housing 1 limits a confined space therein, and is received into wherein by the parts such as above-mentioned fixed scroll 3, orbiter 4, frame 2.The vortex filament structure of fixed scroll 3 and the vortex filament structure of orbiter 4 cooperatively interact to engage or engage and form pressing chamber 11.Fixed scroll 3 is arranged on the top of orbiter 4.Actuating mechanism 7 is a motor comprising stator 72 and rotor 73, and this motor drives orbiter 4 by crank mechanism 71.
When scroll compressor 100 works, from suction port 9 suction gas, after actuating mechanism 7 (such as motor) starts, orbiter 4 is driven by crank mechanism 71 and is retrained by anti-rotation mechanism shaft coupling (not shown), the translation of minor radius is done at basic circle center around fixed scroll 3, and then pressure high temperature hot gas is produced in the gas compression room 11 that orbiter 4 and fixed scroll 3 are formed, this pressure high temperature hot gas is discharged in hyperbaric chamber by fixed scroll relief opening (not shown) along with the movement of orbiter 4, inspiratory check valve (not shown) is now used to prevent the backflow of gas in hyperbaric chamber, gas in this hyperbaric chamber final is discharged by relief opening (not shown).Circulation said process, constantly can produce high temperature and high pressure gas in scroll compressor 100.
In view of the scroll compression principle of scroll compressor 100, squeeze operation and other accessory (although not illustrating) can be similar with existing scroll compressor.Therefore, be described in this be no longer described in detail about scroll compressor 100 is integrally-built.
Seal arrangement and the encapsulating method of pressing chamber 6 is introduced in scroll compressor 100 of the present invention below with reference to exemplary embodiment.
As shown in Figure 2, middle pressure chamber 6 can be that the hub portion 41 of orbiter 4 and a part for frame 2 are around the cavity formed.In an embodiment, as in the cross section zoomed-in view of Fig. 2, middle pressure chamber 6 is formed around the hub portion 41 of orbiter 4.Embodiment in the present invention, sealing device comprises two sealing components 81 and 82 be arranged in the frame 2 of scroll compressor 100, presses chamber 6 for sealing in this.
The position that (namely away from its axle center) that these two sealing components 81 are positioned at the far-end of disc main body portion 42 lower surface 43 of orbiter 4 with the first sealing component 81 in 82 contacts with the first portion 21 on frame 2 top.And the position that the second portion 22 of bottom 44 and the bottom of frame 2 that the second sealing component 82 is positioned at the hub portion 41 of orbiter 4 contacts.
As shown in Figure 2, the first and second sealing components 81 and 82 are all configured to the groove of the first and second parts 21 and 22 being arranged in frame 2.Certainly, the form that arranges of the first and second sealing components 81 and 82 is not limited to above-mentioned illustrated embodiment, such as can also be set directly on the surface of the first and second parts 21 and 22 of frame 2, now at the first and second part 21 and 22 places of frame 2 without the need to arranging groove.
As seen in Figure 2, first portion 21 is the upper rack top surface contacted with the outer end of the disc main body lower surface 43 of orbiter 4 of frame 2.Second portion 22 is the frame lower upper surface contacted with the bottom lower surface in the hub portion 41 of orbiter 4 of frame 2.
In one embodiment, the first and/or second sealing component 81 and 82 can be elastic rubber sealing ring or Teflon seal ring.The shape of the first and/or second sealing component 81 and 82 can be C shape or X-shaped.But, it will be appreciated by those skilled in the art that, according to actual needs, the sealing component 81 and 82 of any suitable material and shape can be selected, as long as the object of pressing chamber 6 can be played in sealing.Preferably, in use, can by the Material selec-tion of the first and second sealing components 81 and 82 for be made up of commaterial, and shape is consistent.
In the embodiment of the present invention, scroll compressor can be high pressure compressor.In high pressure compressor, intakeport is generally positioned at the top of compressor, and relief opening is arranged at the position on the upper side, middle part of compressor.
Illustrated sealing component how is used to press chamber 6 to seal in scroll compressor 100 by illustrating below.
According to the embodiment of the present invention, the method for sealing comprises:
Press chamber 6 in using two sealing components 81 and 82 to seal, wherein, pressure chamber 6 is located in scroll compressor 100, for by the part that the hub portion 41 of orbiter 4 and frame 2 correspond around the cavity formed.
In one embodiment, the position that two sealing components 81 contact with the first portion 21 on frame 2 top with the outer end that the first sealing component 81 in 82 is positioned at disc main body portion 42 lower surface 43 of orbiter 4, and the position that the bottom that the second sealing component 82 is wherein positioned at the hub portion 41 of orbiter 4 contacts with the second portion 22 of frame 2 bottom.
First and second sealing components 81 and 82 are arranged in the groove of the first and second parts 21 and 22 of frame 2.
Usually only a sealing component is adopted in prior art.Deficiency in situation described in prior art, the present invention devises the design of a kind of double-sealing, and it adopts two sealing components, such as seal rings.On the rack section that the end lower surface that one of them seal ring is positioned at the disc main body of orbiter contacts with frame (between frame and orbiter), another seal ring be positioned at orbiter hub bottom and with orbiter hub bottom connection touch rack section on.
In the present invention, owing to adopting described double-sealing design, avoid high machining accuracy and the leakage problem of the axial bearing surface in prior art described in the first Seal Design, and the integrity problem in the second Seal Design.In the sealing arrangement of the embodiment of the present invention, thrust bearing does not need high machining accuracy, thus reduces cost.Seal ring is arranged in frame, because this eliminating associated integrity problem.The first and second sealing situations compared to existing technology, the present invention presses the surface in chamber in can also increasing, its career field for increase compressor is important.
These are only some embodiments of the present invention, those skilled in the art will appreciate that, when not deviating from principle and the spirit of this present general inventive concept, can make a change these embodiments, scope of the present invention is with claim and their equivalents.
Claims (16)
1. a scroll compressor, is characterized in that, comprising:
Scroll compression engine housing;
Frame, described frame is arranged in scroll compression engine housing;
Fixed scroll, described fixed scroll is fixed in described frame;
Orbiter, described orbiter to be supported on rotationally in described frame and to engage with described fixed scroll;
Actuating mechanism, described actuating mechanism is connected to drive described orbiter to rotate between orbiter with frame and with described orbiter;
Middle pressure chamber, for by the hub portion of described orbiter and a part for frame around the cavity formed, wherein, described middle pressure chamber is sealed by two sealing components be arranged in frame.
2. scroll compressor according to claim 1, is characterized in that,
The position that the outer end that the first sealing component in described two sealing components is positioned at the disc main body lower surface of orbiter contacts with the first portion of described upper rack, and the position that the bottom that the second sealing component is wherein positioned at the hub portion of orbiter contacts with the second portion of described frame lower.
3. scroll compressor according to claim 2, is characterized in that,
Described first sealing component and described second sealing component are all arranged in the groove of the first and second parts of described frame.
4. scroll compressor according to claim 3, is characterized in that,
Described first sealing component is elastic rubber sealing ring or Teflon seal ring;
Described second sealing component is elastic rubber sealing ring or Teflon seal ring.
5. scroll compressor according to claim 4, is characterized in that,
The shape of described first sealing component is C shape or X-shaped;
The shape of described second sealing component is C shape or X-shaped.
6. the scroll compressor according to any one of claim 1-5, is characterized in that,
Described scroll compressor is hyperbaric chamber compressor.
7. seal the method in the middle pressure chamber of the scroll compressor according to any one of claim 1-6, it is characterized in that, described method comprises step:
Use the described middle pressure chambeies of two sealing components sealing, wherein said middle pressure chamber is around the cavity formed by the hub portion of the orbiter of described scroll compressor and a part for frame.
8. the method in the middle pressure chamber in sealing scroll compressor according to claim 7, is characterized in that,
The position that the outer end of disc main body lower surface that the first sealing component in described two sealing components is positioned at orbiter contacts with the first portion of upper rack, and the position that the bottom in hub portion that the second sealing component is wherein positioned at orbiter contacts with the second portion of frame lower.
9. the method in the middle pressure chamber in sealing scroll compressor according to claim 8, is characterized in that,
Described first and second sealing components are all arranged in the groove of the first and second parts of frame.
10. the method in the middle pressure chamber in sealing scroll compressor according to claim 9, is characterized in that,
Described first sealing component is elastic rubber sealing ring or Teflon seal ring;
Described second sealing component is elastic rubber sealing ring or Teflon seal ring.
The method in the middle pressure chamber in 11. sealing scroll compressors according to claim 10, is characterized in that,
The shape of described first sealing component is C shape or X-shaped;
The shape of described second sealing component is C shape or X-shaped.
12. 1 kinds of seal arrangements sealing the middle pressure chamber in scroll compressor, is characterized in that, comprising:
Two sealing components, press chamber for sealing in described scroll compressor, and wherein said middle pressure chamber is around the cavity formed by the hub portion of the orbiter of described scroll compressor and a part for frame.
13. seal arrangements according to claim 12, is characterized in that,
The position that the outer end of disc main body lower surface that the first sealing component in described two sealing components is positioned at orbiter contacts with the first portion of upper rack, and the position that the bottom in hub portion that the second sealing component is wherein positioned at orbiter contacts with the second portion of frame lower.
14. seal arrangements according to claim 13, is characterized in that,
Described first and second sealing component portions are arranged in the groove of the first and second parts of frame.
15. seal arrangements according to claim 14, is characterized in that,
Described first sealing component is elastic rubber sealing ring or Teflon seal ring;
Described second sealing component is elastic rubber sealing ring or Teflon seal ring.
16. seal arrangements according to claim 15, is characterized in that,
The shape of described first sealing component is C shape or X-shaped;
The shape of described second sealing component is C shape or X-shaped.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353427.5A CN104373346A (en) | 2013-08-14 | 2013-08-14 | Scroll-compressor and medium pressure cavity sealing method and sealing device |
| IN2303DE2014 IN2014DE02303A (en) | 2013-08-14 | 2014-08-12 | |
| US14/458,768 US20150050175A1 (en) | 2013-08-14 | 2014-08-13 | Scroll compressor, and sealing method and sealing arrangement for mid-pressure chamber thereof |
| DE102014111531.7A DE102014111531A1 (en) | 2013-08-14 | 2014-08-13 | Scroll compressor and sealing method and sealing arrangement for the medium pressure chamber of the scroll compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310353427.5A CN104373346A (en) | 2013-08-14 | 2013-08-14 | Scroll-compressor and medium pressure cavity sealing method and sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104373346A true CN104373346A (en) | 2015-02-25 |
Family
ID=52430373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310353427.5A Pending CN104373346A (en) | 2013-08-14 | 2013-08-14 | Scroll-compressor and medium pressure cavity sealing method and sealing device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20150050175A1 (en) |
| CN (1) | CN104373346A (en) |
| DE (1) | DE102014111531A1 (en) |
| IN (1) | IN2014DE02303A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057889A (en) * | 1990-07-06 | 1992-01-15 | 三菱重工业株式会社 | Scroll-type fluid machinery |
| US6196814B1 (en) * | 1998-06-22 | 2001-03-06 | Tecumseh Products Company | Positive displacement pump rotatable in opposite directions |
| KR100631550B1 (en) * | 2004-12-10 | 2006-10-09 | 엘지전자 주식회사 | Back pressure sealing apparatus for high-pressure type scroll compressor |
| CN101372964A (en) * | 2007-08-22 | 2009-02-25 | 泰州乐金电子冷机有限公司 | High and low pressure separation apparatus of swirl compressor |
| CN202954972U (en) * | 2012-08-07 | 2013-05-29 | 苏州英华特制冷设备技术有限公司 | Axial seal mechanism of scroll compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2782858B2 (en) * | 1989-10-31 | 1998-08-06 | 松下電器産業株式会社 | Scroll gas compressor |
| JP4930022B2 (en) * | 2006-12-06 | 2012-05-09 | ダイキン工業株式会社 | Fluid machinery |
-
2013
- 2013-08-14 CN CN201310353427.5A patent/CN104373346A/en active Pending
-
2014
- 2014-08-12 IN IN2303DE2014 patent/IN2014DE02303A/en unknown
- 2014-08-13 DE DE102014111531.7A patent/DE102014111531A1/en not_active Withdrawn
- 2014-08-13 US US14/458,768 patent/US20150050175A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057889A (en) * | 1990-07-06 | 1992-01-15 | 三菱重工业株式会社 | Scroll-type fluid machinery |
| US6196814B1 (en) * | 1998-06-22 | 2001-03-06 | Tecumseh Products Company | Positive displacement pump rotatable in opposite directions |
| KR100631550B1 (en) * | 2004-12-10 | 2006-10-09 | 엘지전자 주식회사 | Back pressure sealing apparatus for high-pressure type scroll compressor |
| CN101372964A (en) * | 2007-08-22 | 2009-02-25 | 泰州乐金电子冷机有限公司 | High and low pressure separation apparatus of swirl compressor |
| CN202954972U (en) * | 2012-08-07 | 2013-05-29 | 苏州英华特制冷设备技术有限公司 | Axial seal mechanism of scroll compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| IN2014DE02303A (en) | 2015-06-26 |
| DE102014111531A1 (en) | 2015-02-19 |
| US20150050175A1 (en) | 2015-02-19 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |