US20120045357A1 - High effieiency scroll compressor with spiral compressor blades of unequal thickness - Google Patents
High effieiency scroll compressor with spiral compressor blades of unequal thickness Download PDFInfo
- Publication number
- US20120045357A1 US20120045357A1 US12/859,961 US85996110A US2012045357A1 US 20120045357 A1 US20120045357 A1 US 20120045357A1 US 85996110 A US85996110 A US 85996110A US 2012045357 A1 US2012045357 A1 US 2012045357A1
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- Prior art keywords
- scroll
- blades
- compressor
- unequal thickness
- spiral
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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
- 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
- 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
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0269—Details concerning the involute wraps
Definitions
- the present invention provides a high efficiency scroll compressor with spiral compressor blades of unequal thickness, which is used in cold air (storage) compressors to increase efficiency thereof, and thereby achieve the objective of energy conservation and carbon reduction.
- Scroll compressors have been on the market for nearly 30 years, and have become the main force product for small and medium sized air conditioners.
- the scroll compressor comprises a compression chamber primarily formed from a symmetrical assembly of two scrolls consisting of a moving and a stationary involute scroll. Operating strokes are as follows: 1. intake stroke; 2. low compression stroke; 3. medium compression stroke; 4. high pressure discharge stroke (refer to FIG. 1 ); with the radial forces produced by the compressed gas mutually canceling.
- the scroll compressor provides multiple advantages, including large volume, high efficiency, high reliability, low noise, few components, simple operating principle, and low cost; and is generally acknowledged by the industry as a product provided with the most development potential.
- the scroll compressor is provided with the aforementioned many advantages, it would be welcome news for the industry if compressor performance could be increased.
- the inventor of the present invention analyzed involutes as base curves to derive the development of spirals of unequal thickness to serve as scrolls, and investigated into the characteristics of scroll compressors, as well as carrying out an exploratory comparison of a logarithmic spiral 100 and an Archimedes' spiral 200 with a base circle involute 300 (refer to FIG. 2 ).
- the present invention provides a high efficiency scroll compressor with spiral compressor blades of unequal thickness, which is used in cold air (storage) compressors to increase efficiency, achieving energy conservation and carbon reduction.
- the high efficiency scroll compressor with spiral compressor blades of unequal thickness of the present invention uses unfolding logarithmic spirals, which are configured to satisfy a gear engaging condition, that is, spirals of unequal thickness are used to serve as compressor blades. And the objective of increasing compression efficiency is achieved by merely replacing the blades of a compressor.
- FIG. 1 is a drawing depicting compression strokes of a scroll compressor of the prior art.
- FIG. 2 is a drawing depicting an exploratory comparison of line forms of an Archimedes line, a logarithmic line and a base circle line.
- FIG. 3 is a structural view depicting a compressor of the present invention.
- FIG. 4 is a schematic view depicting logarithmic spiral blades of the present invention.
- FIG. 5 is a structural view depicting the logarithmic spiral blades of the present invention.
- FIG. 6 is a structural view depicting the involute interior and logarithmic spiral exterior of the blades of the present invention.
- the present invention provides a high efficiency scroll compressor with spiral compressor blades of unequal thickness, which is used in cold air (storage) compressors to achieve the objective of increasing efficiency thereof.
- implementation of the present invention is described hereinafter:
- the high efficiency scroll compressor with spiral compressor blades of unequal thickness of the present invention (see FIGS. 3 and 4 ) comprises a scroll compressor main body 1 provided with a bottom cover 2 and a base 3 at a lower end thereof, an encircling outer casing 4 forming a holding space, an eccentric shaft 5 is fitted close to the center of the interior of the holding space of the outer casing 4 and is configured perpendicularly between the upper and lower ends thereof, a motor rotor 6 and a motor stator 7 are formed on the periphery of the eccentric shaft 5 , a framework 8 is mounted on another end of the eccentric shaft 5 , an Oldham ring 9 fitted to the framework 8 is an anti-autorotation mechanism, a winding scroll 10 is coupled to the end of the eccentric shaft 5 , and a fixed scroll 11 is retained within the winding scroll 10 .
- An upper cover 12 is formed on an upper end of the fixed scroll 11 to enable covering thereof; moreover, the upper cover 12 is provided with an outlet pipe 13 . Furthermore, the outer casing 4 is provided with an inlet tube 14 at another appropriate place thereof. In addition, the outer casing 4 is fitted with a power supply connector 15 at an appropriate place thereof to enable connection to a power source.
- the above components make up a complete compressor, and apart from the aforementioned fixed scroll 11 and the winding scroll 10 , all the other components belong to the prior art.
- the fixed scroll 11 and the winding scroll 10 form unfolding base circle scrolls around a base circle center.
- the length of the scroll ⁇ a ⁇ b ; a is a fixed constant, a>0, and b is an exponent.
- both the aforementioned fixed scroll 11 and the winding scroll 10 is based on an unfolding logarithmic spiral scroll blade, that is, they form compressor blades of unequal thickness (see FIGS. 4 and 5 ), also called logarithmic spiral blades 16 .
- the smallest blade thickness is at the internal center, and gets thicker as the logarithmic spiral scroll blade unfolds (see FIG. 5 ).
- there is a space between adjacent blades and the space still exists when the fixed scroll 11 engages with the winding scroll 10 , this being the space used to contain compression liquid, and is also the space used for compression work.
- the present invention During operation, compression is the same as that for traditional involute scrolls, that is, the compression liquid is compressed starting from the periphery towards the internal center of the scroll, thereby achieving a high compression ratio output.
- the present invention is able to increase compression efficiency by approximately 14%, thereby far exceeding performance of traditional involute scroll compressors.
- the present invention surpasses traditional involute scroll compressors with its superior compression efficiency and complete innovative design.
- the present invention is provided with multiple advantages, including being elaborate, saving space, easy assembly, saving on materials, durability, and low cost.
- merely replacing the compressor blades enables increasing compression efficiency, thereby achieving the objectives of energy conservation and carbon reduction.
- the present invention provides high economic benefits and is of industrial development value.
- both the fixed scroll 11 and the winding scroll 10 of the present invention is based on an unfolding logarithmic spiral scroll blade, that is, they form compressor blades of unequal thickness, also called logarithmic spiral blades 16 , thus, the internal blade is the thinnest portion, which gradually becomes thicker towards the external part of the blade.
- Such a design is generally applicable; however, if the strength of the internal structure is inadequate, then another configuration can be incorporated, whereby the thickness of the internal blades is increased to improve the strength of the scroll blades.
- Such a configurational change involves applying involute blades of increased thickness, that is, involute linear blades 17 are on the inside, while logarithmic spiral blades are on the outside, both constituting applicable blades (see FIG. 6 ), thereby resolving the problems associated with the weakest portions of the blades, and completely bringing into full play the advantages of the present invention.
- the present invention is an innovative design that uses technological ideas of physical laws to completely overcome traditional thinking and provide a new product provided with originality, advancement, and industrial application, thus complying with the essential elements as required for a new patent application. Accordingly, a new patent application is proposed herein.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention provides a high efficiency scroll compressor with spiral compressor blades of unequal thickness, using unfolding logarithmic spirals configured to satisfy a gear engaging condition, that is, spirals of unequal thickness serve as compressor blades, thereby providing high gas compression ratio, and high compression efficiency, to achieve the objectives of energy conservation and carbon reduction.
Description
- (a) Field of the Invention
- The present invention provides a high efficiency scroll compressor with spiral compressor blades of unequal thickness, which is used in cold air (storage) compressors to increase efficiency thereof, and thereby achieve the objective of energy conservation and carbon reduction.
- (b) Description of the Prior Art
- Recent advances in technology have enabled the manufacture of many excellent products, one excellent invention being the air conditioner. And temperature build-up caused by global climatic shift of recent years is necessitating the installation of air conditioners in every home. However, the excessive use of air conditioners not only consumes power, but is also, because the liquid coolant used by air conditioners results in damage to the environment, one if the reasons for global temperature build-up. Presently, there is not one country in the world that is not implementing means to protect the environment, save energy and reduce carbon emissions. Hence, increasing compressor performance of cold air (storage) compressors is without doubt a feasible plan for improvement thereof.
- Scroll compressors have been on the market for nearly 30 years, and have become the main force product for small and medium sized air conditioners. The scroll compressor comprises a compression chamber primarily formed from a symmetrical assembly of two scrolls consisting of a moving and a stationary involute scroll. Operating strokes are as follows: 1. intake stroke; 2. low compression stroke; 3. medium compression stroke; 4. high pressure discharge stroke (refer to
FIG. 1 ); with the radial forces produced by the compressed gas mutually canceling. Compared to other types of compressors, the scroll compressor provides multiple advantages, including large volume, high efficiency, high reliability, low noise, few components, simple operating principle, and low cost; and is generally acknowledged by the industry as a product provided with the most development potential. Although the scroll compressor is provided with the aforementioned many advantages, it would be welcome news for the industry if compressor performance could be increased. - However, how to design a high performance scroll compressor that brings into full play its superior capabilities is presently an active research direction for manufacturers. As for the current situation, one after another large international manufacturers of compressors are applying for patents to protect self-interests, thereby restricting subsequent manufacturers from entering the market, and thus imposing restraints on innovation. Hence, how can subsequent manufacturers survive under such stringent conditions? Only by overcoming traditional innovative thinking can new inventive ideas be initiated. In essence, up to the present time the inventor of the present invention has not seen any related reports, articles or the appearance of any products on how scroll compressors can be made to produce a higher compression ratio to increase the compression effectiveness thereof. In view of this, the inventor of the present invention being beset by the aforementioned deficiency, proposes a new invention to resolve and surmount existent technical difficulties to Improve functionality of scroll compressors of the prior art.
- In order to increase performance, the inventor of the present invention analyzed involutes as base curves to derive the development of spirals of unequal thickness to serve as scrolls, and investigated into the characteristics of scroll compressors, as well as carrying out an exploratory comparison of a
logarithmic spiral 100 and an Archimedes' spiral 200 with a base circle involute 300 (refer toFIG. 2 ). - The aforementioned research and experimentation, after untold hardships, and carrying out innumerable experiments with countless failures and repeated modifications, finally came to fruition in the development of a solution to the foregoing problems and shortcomings, and primarily uses unfolding logarithmic spiral scroll compressor blades, that is, spirals of unequal thickness are used to serve as scroll compressor blades. Compression efficiency can be increased by merely replacing the blades of a compressor, thereby resolving long standing insurmountable problems, and achieving the objectives of energy conservation and carbon reduction.
- The present invention provides a high efficiency scroll compressor with spiral compressor blades of unequal thickness, which is used in cold air (storage) compressors to increase efficiency, achieving energy conservation and carbon reduction.
- The high efficiency scroll compressor with spiral compressor blades of unequal thickness of the present invention uses unfolding logarithmic spirals, which are configured to satisfy a gear engaging condition, that is, spirals of unequal thickness are used to serve as compressor blades. And the objective of increasing compression efficiency is achieved by merely replacing the blades of a compressor.
- To enable a further understanding of said objectives and the technological methods of the invention herein, a brief description of the drawings is provided below followed by a detailed description of the preferred embodiments.
-
FIG. 1 is a drawing depicting compression strokes of a scroll compressor of the prior art. -
FIG. 2 is a drawing depicting an exploratory comparison of line forms of an Archimedes line, a logarithmic line and a base circle line. -
FIG. 3 is a structural view depicting a compressor of the present invention. -
FIG. 4 is a schematic view depicting logarithmic spiral blades of the present invention. -
FIG. 5 is a structural view depicting the logarithmic spiral blades of the present invention. -
FIG. 6 is a structural view depicting the involute interior and logarithmic spiral exterior of the blades of the present invention. - Referring first to all the drawings, the present invention provides a high efficiency scroll compressor with spiral compressor blades of unequal thickness, which is used in cold air (storage) compressors to achieve the objective of increasing efficiency thereof. Implementation of the present invention is described hereinafter:
- The high efficiency scroll compressor with spiral compressor blades of unequal thickness of the present invention (see
FIGS. 3 and 4 ) comprises a scroll compressormain body 1 provided with abottom cover 2 and abase 3 at a lower end thereof, an encirclingouter casing 4 forming a holding space, aneccentric shaft 5 is fitted close to the center of the interior of the holding space of theouter casing 4 and is configured perpendicularly between the upper and lower ends thereof, amotor rotor 6 and amotor stator 7 are formed on the periphery of theeccentric shaft 5, aframework 8 is mounted on another end of theeccentric shaft 5, an Oldham ring 9 fitted to theframework 8 is an anti-autorotation mechanism, awinding scroll 10 is coupled to the end of theeccentric shaft 5, and afixed scroll 11 is retained within thewinding scroll 10. Anupper cover 12 is formed on an upper end of thefixed scroll 11 to enable covering thereof; moreover, theupper cover 12 is provided with anoutlet pipe 13. Furthermore, theouter casing 4 is provided with aninlet tube 14 at another appropriate place thereof. In addition, theouter casing 4 is fitted with apower supply connector 15 at an appropriate place thereof to enable connection to a power source. The above components make up a complete compressor, and apart from the aforementionedfixed scroll 11 and thewinding scroll 10, all the other components belong to the prior art. - In which, the
fixed scroll 11 and the winding scroll 10 form unfolding base circle scrolls around a base circle center. The length of the scroll ρ=a·θb; a is a fixed constant, a>0, and b is an exponent. When b<1, then the separation distance gradually decreases; when b=1, then a standard involute unfolds, and when b>1, then the separation distance gradually opens up. - The logarithmic equation is:
-
x=a·θ b·cos θ -
y=a·θ b·sin θ - Because the
fixed scroll 11 and thewinding scroll 10 are assembled as a set, and a 180° phase difference is formed between the two scrolls, thus, a second scroll line is: -
x=−a·θ b·cos θ -
y=−a·θ b·sin θ - The geometric design of both the aforementioned fixed
scroll 11 and the windingscroll 10 is based on an unfolding logarithmic spiral scroll blade, that is, they form compressor blades of unequal thickness (seeFIGS. 4 and 5 ), also calledlogarithmic spiral blades 16. In other words, the smallest blade thickness is at the internal center, and gets thicker as the logarithmic spiral scroll blade unfolds (seeFIG. 5 ). Moreover, there is a space between adjacent blades, and the space still exists when the fixedscroll 11 engages with the windingscroll 10, this being the space used to contain compression liquid, and is also the space used for compression work. During operation, compression is the same as that for traditional involute scrolls, that is, the compression liquid is compressed starting from the periphery towards the internal center of the scroll, thereby achieving a high compression ratio output. Experiments have shown that the present invention is able to increase compression efficiency by approximately 14%, thereby far exceeding performance of traditional involute scroll compressors. Hence, the present invention surpasses traditional involute scroll compressors with its superior compression efficiency and complete innovative design. Through conception, experimentation, and configuration of the components, the present invention is provided with multiple advantages, including being elaborate, saving space, easy assembly, saving on materials, durability, and low cost. Furthermore, merely replacing the compressor blades enables increasing compression efficiency, thereby achieving the objectives of energy conservation and carbon reduction. Hence, the present invention provides high economic benefits and is of industrial development value. - In addition, because the geometric design of both the fixed
scroll 11 and the windingscroll 10 of the present invention is based on an unfolding logarithmic spiral scroll blade, that is, they form compressor blades of unequal thickness, also calledlogarithmic spiral blades 16, thus, the internal blade is the thinnest portion, which gradually becomes thicker towards the external part of the blade. Such a design is generally applicable; however, if the strength of the internal structure is inadequate, then another configuration can be incorporated, whereby the thickness of the internal blades is increased to improve the strength of the scroll blades. Such a configurational change involves applying involute blades of increased thickness, that is, involutelinear blades 17 are on the inside, while logarithmic spiral blades are on the outside, both constituting applicable blades (seeFIG. 6 ), thereby resolving the problems associated with the weakest portions of the blades, and completely bringing into full play the advantages of the present invention. - In conclusion, the present invention is an innovative design that uses technological ideas of physical laws to completely overcome traditional thinking and provide a new product provided with originality, advancement, and industrial application, thus complying with the essential elements as required for a new patent application. Accordingly, a new patent application is proposed herein.
- It is of course to be understood that the embodiments described herein are merely illustrative of the principles of the invention and that a wide variety of modifications thereto may be effected by persons skilled in the art without departing from the spirit and scope of the invention as set forth in the following claims.
Claims (3)
1. A high efficiency scroll compressor with spiral compressor blades of unequal thickness, applicable for use in cold air (storage) compressors, comprising:
a scroll compressor main body, one end of the scroll compressor main body is fitted with a fixed scroll and a winding scroll, the fixed scroll and the winding scroll mutually engage, and provide a holding space;
wherein the fixed scroll and winding scroll are both unfolding logarithmic spiral scroll blades, having compressor blades of unequal thickness;
thereby enabling compressing a compression liquid to achieve the objective of high compression ratio and compression work.
2. The high efficiency scroll compressor with spiral compressor blades of unequal thickness according to claim 1 , wherein the fixed scroll and the winding scroll are both unfolding logarithmic spiral scroll blades, having compression blades of unequal thickness, wherein the fixed scroll and the winding scroll both form an unfolding base circle scroll around a base circle center; the length of the scroll ρ=a·θb; a is a fixed constant, a>0, and b is an exponent; when b<1, then the separation distance gradually decreases, when b=1, then a standard involute unfolds, and when b>1, then the separation distance gradually opens up;
the logarithmic equation is:
x=a·θ b·cos θ
y=a·θ b·sin θ
x=a·θ b·cos θ
y=a·θ b·sin θ
a second scroll line is:
x=−a·θ b·cos θ
y=−a·θ b·sin θ
x=−a·θ b·cos θ
y=−a·θ b·sin θ
3. The high efficiency scroll compressor with spiral compressor blades of unequal thickness according to claim 1 , wherein the fixed scroll and the winding scroll are both unfolding logarithmic spiral scroll blades, having compression blades of unequal thickness, wherein in order to increase structural strength of the interior of the blades, the interior is changed to involute linear blades, and the exterior are logarithmic linear blades, both constituting applicable blades.
Priority Applications (1)
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US12/859,961 US20120045357A1 (en) | 2010-08-20 | 2010-08-20 | High effieiency scroll compressor with spiral compressor blades of unequal thickness |
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US12/859,961 US20120045357A1 (en) | 2010-08-20 | 2010-08-20 | High effieiency scroll compressor with spiral compressor blades of unequal thickness |
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Publication Number | Publication Date |
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US20120045357A1 true US20120045357A1 (en) | 2012-02-23 |
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US12/859,961 Abandoned US20120045357A1 (en) | 2010-08-20 | 2010-08-20 | High effieiency scroll compressor with spiral compressor blades of unequal thickness |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130004354A1 (en) * | 2011-07-01 | 2013-01-03 | Lg Electronics Inc. | Scroll compressor |
EP2813706A1 (en) * | 2013-06-10 | 2014-12-17 | LG Electronics, Inc. | Scroll compressor |
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US4773835A (en) * | 1986-12-29 | 1988-09-27 | Hitachi, Ltd. | Scroll type pump with wrap curve offset for thermal expansion |
US5425626A (en) * | 1992-09-11 | 1995-06-20 | Hitachi, Ltd. | Scroll type fluid machine with an involute spiral based on a circle having a varying radius |
US5513967A (en) * | 1993-07-16 | 1996-05-07 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Method of determining the shape of spiral elements for scroll type compressor |
US5554017A (en) * | 1991-12-20 | 1996-09-10 | Hitachi, Ltd. | Scroll fluid machine, scroll member and processing method thereof |
US5562434A (en) * | 1995-04-17 | 1996-10-08 | Matsushita Electric Industrial Co., Ltd. | Scroll compressor having optimized tip seal grooves |
US5584677A (en) * | 1994-03-15 | 1996-12-17 | Nippondenso Co., Ltd. | Scroll compressor having a bevelled facing section |
US5791886A (en) * | 1995-10-20 | 1998-08-11 | Sanden Corporation | Scroll type fluid displacement apparatus with an axial seal plate |
US5836752A (en) * | 1996-10-18 | 1998-11-17 | Sanden International (U.S.A.), Inc. | Scroll-type compressor with spirals of varying pitch |
US6089839A (en) * | 1997-12-09 | 2000-07-18 | Carrier Corporation | Optimized location for scroll compressor economizer injection ports |
US6174150B1 (en) * | 1994-09-16 | 2001-01-16 | Hitachi, Ltd. | Scroll compressor |
US20020071780A1 (en) * | 2000-12-07 | 2002-06-13 | Chang Young Il | Scroll compressor |
US6499978B2 (en) * | 2000-10-23 | 2002-12-31 | Lg Electronics Inc. | Scroll compressor having different wrap thicknesses |
US7244114B2 (en) * | 2003-10-17 | 2007-07-17 | Matsushita Electric Industrial Co., Ltd. | Scroll compressor |
-
2010
- 2010-08-20 US US12/859,961 patent/US20120045357A1/en not_active Abandoned
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4773835A (en) * | 1986-12-29 | 1988-09-27 | Hitachi, Ltd. | Scroll type pump with wrap curve offset for thermal expansion |
US5554017A (en) * | 1991-12-20 | 1996-09-10 | Hitachi, Ltd. | Scroll fluid machine, scroll member and processing method thereof |
US5425626A (en) * | 1992-09-11 | 1995-06-20 | Hitachi, Ltd. | Scroll type fluid machine with an involute spiral based on a circle having a varying radius |
US5513967A (en) * | 1993-07-16 | 1996-05-07 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Method of determining the shape of spiral elements for scroll type compressor |
US5584677A (en) * | 1994-03-15 | 1996-12-17 | Nippondenso Co., Ltd. | Scroll compressor having a bevelled facing section |
US6174150B1 (en) * | 1994-09-16 | 2001-01-16 | Hitachi, Ltd. | Scroll compressor |
US5562434A (en) * | 1995-04-17 | 1996-10-08 | Matsushita Electric Industrial Co., Ltd. | Scroll compressor having optimized tip seal grooves |
US5791886A (en) * | 1995-10-20 | 1998-08-11 | Sanden Corporation | Scroll type fluid displacement apparatus with an axial seal plate |
US5836752A (en) * | 1996-10-18 | 1998-11-17 | Sanden International (U.S.A.), Inc. | Scroll-type compressor with spirals of varying pitch |
US6089839A (en) * | 1997-12-09 | 2000-07-18 | Carrier Corporation | Optimized location for scroll compressor economizer injection ports |
US6499978B2 (en) * | 2000-10-23 | 2002-12-31 | Lg Electronics Inc. | Scroll compressor having different wrap thicknesses |
US20020071780A1 (en) * | 2000-12-07 | 2002-06-13 | Chang Young Il | Scroll compressor |
US7244114B2 (en) * | 2003-10-17 | 2007-07-17 | Matsushita Electric Industrial Co., Ltd. | Scroll compressor |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130004354A1 (en) * | 2011-07-01 | 2013-01-03 | Lg Electronics Inc. | Scroll compressor |
US9371832B2 (en) * | 2011-07-01 | 2016-06-21 | Lg Electronics Inc. | Scroll compressor |
EP2813706A1 (en) * | 2013-06-10 | 2014-12-17 | LG Electronics, Inc. | Scroll compressor |
US9605675B2 (en) | 2013-06-10 | 2017-03-28 | Lg Electronics Inc. | Scroll compressor with an arcuate and a logarithmic spiral sections |
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