US20060222545A1 - Fixed scroll of scroll compressor - Google Patents
Fixed scroll of scroll compressor Download PDFInfo
- Publication number
- US20060222545A1 US20060222545A1 US11/213,005 US21300505A US2006222545A1 US 20060222545 A1 US20060222545 A1 US 20060222545A1 US 21300505 A US21300505 A US 21300505A US 2006222545 A1 US2006222545 A1 US 2006222545A1
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- United States
- Prior art keywords
- suction
- compression chamber
- scroll
- gaseous refrigerant
- suction passage
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- 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
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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
- F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
- F04C18/0253—Details concerning the base
-
- 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
- F04C2250/00—Geometry
- F04C2250/10—Geometry of the inlet or outlet
- F04C2250/101—Geometry of the inlet or outlet of the inlet
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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
- 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
Definitions
- the present invention relates to a scroll compressor, and more particularly, to a fixed scroll of a scroll compressor which can allow gaseous refrigerant, that is introduced into a compressor shell via a suction pipe, to be directly introduced into a compression chamber without being heated.
- FIG. 1 is a longitudinal sectional view illustrating important parts of a conventional scroll compressor.
- FIG. 2 is a perspective view illustrating a fixed scroll of FIG. 1 .
- FIGS. 1 and 2 indicate a flow direction of suctioned gaseous refrigerant.
- the conventional scroll compressor includes a shell 100 defining a sealed space therein and provided with a suction pipe 101 and a discharge pipe 102 , a compression unit 200 arranged in an upper portion of the shell 100 and adapted to compress gaseous refrigerant, and a crankshaft 300 supported by main and sub frames in the shell 100 and adapted to drive the compression unit 200 when it is rotated by a drive unit.
- the compression unit 200 includes an orbiting scroll 201 arranged on an upper surface of a main frame 400 in the shell 100 while being coupled to an upper end of the crankshaft 300 , and a fixed scroll 202 arranged on the upper surface of the main frame 400 to be engaged with the orbiting scroll 201 such that a compression chamber is defined between the scrolls 201 and 202 .
- gaseous refrigerant is introduced into the compression chamber defined between the scrolls 201 and 202 to thereby being compressed therein.
- the part of the gaseous refrigerant, upwardly guided against the suction baffle 401 , is introduced into a compression chamber 202 d defined in a wrap 202 c via a suction port 202 b formed at one side of a scroll body 202 a.
- the remaining gaseous refrigerant, downwardly guided against the suction baffle 401 is heated while being circulated inside the shell 100 .
- the heated gaseous refrigerant is directed upward to thereby be circulated around the scroll body 202 a as designated by arrows of FIG. 2 . In this way, the heated gaseous refrigerant is finally guided to the suction port 202 b.
- the conventional scroll compressor configured as stated above, however, has a problem that suctioned gaseous refrigerant, that strikes the suction baffle, is not introduced directly into the compression chamber, but is circulated along an outer circumference of the scroll body, resulting in ineffective introduction of the gaseous refrigerant into the compression chamber.
- the conventional scroll compressor causes heated gaseous refrigerant to be introduced into the compression chamber after being circulated along the outer circumference of the scroll body. This considerably degrades the volumetric efficiency of the compressor, resulting in deterioration in the overall performance of the compressor.
- the present invention has been made in view of the above problems, and it is an object of the present invention to provide a fixed scroll of a scroll compressor which can allow suctioned gaseous refrigerant to be effectively introduced into a compression chamber while preventing introduction of gaseous refrigerant that is heated in the compressor.
- a fixed scroll of a scroll compressor comprising: a scroll body having an involuted wrap to define a compression chamber therein; a mounting flange formed along an outer circumference of a lower end of the scroll body to be arranged on an upper surface of a main frame; and an interceptive suction portion configured to guide gaseous refrigerant, that is directed upward along the main frame, into the compression chamber defined in the scroll body.
- the interceptive suction portion may include a barrier and a suction passage formed by cutting out part of a lower portion of the mounting flange, the suction passage communicating with the compression chamber defined in the scroll body.
- the suction baffle having a concave shape, may extend to the interceptive suction portion.
- one side of the suction passage may form a first inclined surface that is successively extended from a distal end of the wrap by a predetermined inclination to guide the gaseous refrigerant into the compression chamber through the suction passage.
- the other side of the suction passage may form a second inclined surface that is inclined relative to the wrap by a predetermined inclination to guide the gaseous refrigerant into the compression chamber through the suction passage.
- FIG. 1 is a longitudinal sectional view illustrating important parts of a conventional scroll compressor
- FIG. 2 is a perspective view illustrating a fixed scroll of FIG. 1 ;
- FIG. 3 is a bottom perspective view of a fixed scroll in accordance with the present invention.
- FIG. 4 is a perspective view illustrating the fixed scroll of FIG. 3 , which is coupled to a main frame;
- FIG. 5 is a longitudinal sectional view illustrating the introduction of refrigerant in accordance with the present invention.
- FIG. 3 is a bottom perspective view of a fixed scroll in accordance with the present invention.
- FIG. 4 is a perspective view illustrating the fixed scroll of FIG. 3 , which is coupled to a main frame.
- the fixed scroll 1 of a scroll compressor includes a scroll body 10 arranged on an upper surface of a main frame 2 and defining a compression chamber 11 therein, and an interceptive suction portion 20 formed at the scroll body 10 to guide gaseous refrigerant into the compression chamber 11 .
- the scroll body 10 has an involuted wrap 12 to define the compression chamber 11 therein, and a mounting flange 13 formed around a lower end of the scroll body 10 to be mounted on the upper surface of the main frame 2 .
- the interceptive suction portion 20 serves to guide only suctioned gaseous refrigerant, that is directed upward from a suction baffle 2 a formed at one side of the main frame 2 , into the compression chamber 11 while preventing the remaining gaseous refrigerant, that is circulated around the scroll body 10 , from being introduced into the compression chamber 11 .
- the suction baffle 2 a has a concave shape and is configured to extend to the interceptive suction portion 20 .
- the interceptive suction portion 20 includes a barrier remained after cutting out part of a lower portion of the mounting flange 13 formed around the scroll body 10 to form a suction passage 21 at a position corresponding to an upper end of the suction baffle 2 a.
- the suction passage 21 is configured to communicate with the compression chamber 11 .
- the gaseous refrigerant that is upwardly directed against the suction baffle 2 a formed at one side of the main frame 2 , strikes the barrier 22 to thereby be directly introduced into the compression chamber 11 via the suction passage 21 . Also, the barrier 22 prevents heated gaseous refrigerant, that is circulated around the scroll body 10 , from being introduced into the suction passage 21 .
- One side of the suction passage 21 forms an inclined surface 23 that is successively extended from a distal end of the wrap 12 by a predetermined inclination.
- the other side of the suction passage 21 also forms an inclined surface 24 that is inclined relative to the inclined surface 23 by a predetermined inclination.
- the inclined surfaces 23 and 24 serve to allow the gaseous refrigerant to be more smoothly guided from the suction baffle 2 a of the main frame 2 into the compression chamber 11 defined in the scroll body 10 via the suction passage 21 .
- FIG. 5 is a longitudinal sectional view illustrating the introduction of the gaseous refrigerant in accordance with the present invention.
- the suctioned gaseous refrigerant which is introduced into a shell 3 via a suction pipe 3 a provided at the shell 3 , is directed upward by means of the suction baffle 2 a of the main frame 2 that is arranged to face the suction pipe 3 a.
- the upwardly directed gaseous refrigerant strikes the barrier 22 , thereby being introduced into the compression chamber 11 of the wrap 12 formed at the scroll body 10 by way of the suction passage 21 .
- the remaining gaseous refrigerant which is directed downwardly against the suction baffle 2 a, is heated while being circulated in the compressor. Then, the heated gaseous refrigerant is directed upward and is circulated around the scroll body 10 . In this case, the heated gaseous refrigerant is unable to be introduced into the compression chamber 11 because of the barrier 22 that blocks a passage to the suction passage 21 .
- the interceptive suction portion 20 of the present invention allows the gaseous refrigerant, that is suctioned into the shell 3 and strikes the suction baffle 2 a, to be directly introduced into the compression chamber 11 by means of the barrier 22 and the suction passage 21 while completely preventing the introduction of the gaseous refrigerant that is heated in the shell 3 .
- the present invention provides a fixed scroll of a scroll compressor which can allow suctioned gaseous refrigerant to be smoothly introduced into a compression chamber while completely preventing introduction of the remaining gaseous refrigerant that is heated in the compressor, thereby achieving more stable introduction of the gaseous refrigerant and improving the volumetric efficiency of the compressor to achieve an improved compressor performance.
- the fixed scroll easily achieves effective introduction of suctioned gaseous refrigerant into the compression chamber while completely preventing introduction of heated gaseous refrigerant via a simple deformation in the shape of the fixed scroll without requiring installation of an additional member. This has the effect of simplifying the manufacturing process of the compressor and reducing manufacturing costs thereof.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Disclosed herein is a scroll compressor, and more particularly, a fixed scroll of the scroll compressor which can allow part of gaseous refrigerant to be smoothly introduced into a compression chamber while preventing introduction of the remaining gaseous refrigerant that is heated in the compressor. The fixed scroll includes a scroll body having an involuted wrap to define a compression chamber therein and provided, around a lower end thereof, with a mounting flange to be arranged on an upper surface of a main frame, and an interceptive suction portion configured to guide part of the gaseous refrigerant, that is directed upward along the main frame, into the compression chamber while preventing introduction of the remaining gaseous refrigerant that is circulated around the scroll body.
Description
- Pursuant to 35 U.S.C. § 119(a), this application claims the benefit of earlier filing date and right of priority to Korean Patent Application No. 10-2005-0026583, filed on Mar. 30, 2005, the content of which is hereby incorporated by reference herein in its entirety.
- 1. Field of the Invention
- The present invention relates to a scroll compressor, and more particularly, to a fixed scroll of a scroll compressor which can allow gaseous refrigerant, that is introduced into a compressor shell via a suction pipe, to be directly introduced into a compression chamber without being heated.
- 2. Description of the Related Art
-
FIG. 1 is a longitudinal sectional view illustrating important parts of a conventional scroll compressor.FIG. 2 is a perspective view illustrating a fixed scroll ofFIG. 1 . - Arrows shown in
FIGS. 1 and 2 indicate a flow direction of suctioned gaseous refrigerant. - As shown in
FIGS. 1 and 2 , the conventional scroll compressor includes ashell 100 defining a sealed space therein and provided with asuction pipe 101 and adischarge pipe 102, acompression unit 200 arranged in an upper portion of theshell 100 and adapted to compress gaseous refrigerant, and acrankshaft 300 supported by main and sub frames in theshell 100 and adapted to drive thecompression unit 200 when it is rotated by a drive unit. - The
compression unit 200 includes anorbiting scroll 201 arranged on an upper surface of amain frame 400 in theshell 100 while being coupled to an upper end of thecrankshaft 300, and afixed scroll 202 arranged on the upper surface of themain frame 400 to be engaged with the orbitingscroll 201 such that a compression chamber is defined between thescrolls orbiting scroll 201 performs an orbiting motion in accordance with rotation of thecrankshaft 300, gaseous refrigerant is introduced into the compression chamber defined between thescrolls - In the scroll compressor configured as stated above, as the gaseous refrigerant, that is introduced into the
shell 100 via thesuction pipe 101, strikes asuction baffle 401 formed at one side of themain frame 400, part of the gaseous refrigerant is directed upward toward thecompression unit 200, and the remaining gaseous refrigerant is directed downward to be circulated inside theshell 100. - The part of the gaseous refrigerant, upwardly guided against the
suction baffle 401, is introduced into acompression chamber 202 d defined in a wrap 202 c via asuction port 202 b formed at one side of ascroll body 202 a. On the other hand, the remaining gaseous refrigerant, downwardly guided against thesuction baffle 401, is heated while being circulated inside theshell 100. After that, the heated gaseous refrigerant is directed upward to thereby be circulated around thescroll body 202 a as designated by arrows ofFIG. 2 . In this way, the heated gaseous refrigerant is finally guided to thesuction port 202 b. - The conventional scroll compressor configured as stated above, however, has a problem that suctioned gaseous refrigerant, that strikes the suction baffle, is not introduced directly into the compression chamber, but is circulated along an outer circumference of the scroll body, resulting in ineffective introduction of the gaseous refrigerant into the compression chamber.
- Further, the conventional scroll compressor causes heated gaseous refrigerant to be introduced into the compression chamber after being circulated along the outer circumference of the scroll body. This considerably degrades the volumetric efficiency of the compressor, resulting in deterioration in the overall performance of the compressor.
- Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a fixed scroll of a scroll compressor which can allow suctioned gaseous refrigerant to be effectively introduced into a compression chamber while preventing introduction of gaseous refrigerant that is heated in the compressor.
- It is another object of the present invention to provide a fixed scroll of a scroll compressor which can achieve smooth introduction of suctioned gaseous refrigerant into a compression chamber while preventing introduction of heated gaseous refrigerant via a simple deformation in the shape of the fixed scroll without requiring installation of an additional member.
- In accordance with the present invention, the above and other objects can be accomplished by the provision of a fixed scroll of a scroll compressor comprising: a scroll body having an involuted wrap to define a compression chamber therein; a mounting flange formed along an outer circumference of a lower end of the scroll body to be arranged on an upper surface of a main frame; and an interceptive suction portion configured to guide gaseous refrigerant, that is directed upward along the main frame, into the compression chamber defined in the scroll body.
- Preferably, the interceptive suction portion may include a barrier and a suction passage formed by cutting out part of a lower portion of the mounting flange, the suction passage communicating with the compression chamber defined in the scroll body.
- Preferably, the suction baffle, having a concave shape, may extend to the interceptive suction portion.
- Preferably, one side of the suction passage may form a first inclined surface that is successively extended from a distal end of the wrap by a predetermined inclination to guide the gaseous refrigerant into the compression chamber through the suction passage.
- Preferably, the other side of the suction passage may form a second inclined surface that is inclined relative to the wrap by a predetermined inclination to guide the gaseous refrigerant into the compression chamber through the suction passage.
- The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
-
FIG. 1 is a longitudinal sectional view illustrating important parts of a conventional scroll compressor; -
FIG. 2 is a perspective view illustrating a fixed scroll ofFIG. 1 ; -
FIG. 3 is a bottom perspective view of a fixed scroll in accordance with the present invention; -
FIG. 4 is a perspective view illustrating the fixed scroll ofFIG. 3 , which is coupled to a main frame; and -
FIG. 5 is a longitudinal sectional view illustrating the introduction of refrigerant in accordance with the present invention. - Now, a preferred embodiment of the present invention will be explained with reference to the accompanying drawings.
-
FIG. 3 is a bottom perspective view of a fixed scroll in accordance with the present invention.FIG. 4 is a perspective view illustrating the fixed scroll ofFIG. 3 , which is coupled to a main frame. - As shown in
FIGS. 3 and 4 , thefixed scroll 1 of a scroll compressor includes ascroll body 10 arranged on an upper surface of amain frame 2 and defining acompression chamber 11 therein, and aninterceptive suction portion 20 formed at thescroll body 10 to guide gaseous refrigerant into thecompression chamber 11. - The
scroll body 10 has aninvoluted wrap 12 to define thecompression chamber 11 therein, and amounting flange 13 formed around a lower end of thescroll body 10 to be mounted on the upper surface of themain frame 2. - The
interceptive suction portion 20 serves to guide only suctioned gaseous refrigerant, that is directed upward from asuction baffle 2 a formed at one side of themain frame 2, into thecompression chamber 11 while preventing the remaining gaseous refrigerant, that is circulated around thescroll body 10, from being introduced into thecompression chamber 11. Here, thesuction baffle 2 a has a concave shape and is configured to extend to theinterceptive suction portion 20. Theinterceptive suction portion 20 includes a barrier remained after cutting out part of a lower portion of themounting flange 13 formed around thescroll body 10 to form asuction passage 21 at a position corresponding to an upper end of thesuction baffle 2 a. Thesuction passage 21 is configured to communicate with thecompression chamber 11. - With the
interceptive suction portion 20 configured as stated above, the gaseous refrigerant, that is upwardly directed against thesuction baffle 2 a formed at one side of themain frame 2, strikes thebarrier 22 to thereby be directly introduced into thecompression chamber 11 via thesuction passage 21. Also, thebarrier 22 prevents heated gaseous refrigerant, that is circulated around thescroll body 10, from being introduced into thesuction passage 21. - One side of the
suction passage 21 forms aninclined surface 23 that is successively extended from a distal end of thewrap 12 by a predetermined inclination. The other side of thesuction passage 21 also forms aninclined surface 24 that is inclined relative to theinclined surface 23 by a predetermined inclination. - The
inclined surfaces suction baffle 2 a of themain frame 2 into thecompression chamber 11 defined in thescroll body 10 via thesuction passage 21. -
FIG. 5 is a longitudinal sectional view illustrating the introduction of the gaseous refrigerant in accordance with the present invention. - As shown in
FIG. 5 , the suctioned gaseous refrigerant, which is introduced into ashell 3 via asuction pipe 3 a provided at theshell 3, is directed upward by means of thesuction baffle 2 a of themain frame 2 that is arranged to face thesuction pipe 3 a. The upwardly directed gaseous refrigerant strikes thebarrier 22, thereby being introduced into thecompression chamber 11 of thewrap 12 formed at thescroll body 10 by way of thesuction passage 21. - On the other hand, the remaining gaseous refrigerant, which is directed downwardly against the
suction baffle 2 a, is heated while being circulated in the compressor. Then, the heated gaseous refrigerant is directed upward and is circulated around thescroll body 10. In this case, the heated gaseous refrigerant is unable to be introduced into thecompression chamber 11 because of thebarrier 22 that blocks a passage to thesuction passage 21. As a result, theinterceptive suction portion 20 of the present invention allows the gaseous refrigerant, that is suctioned into theshell 3 and strikes thesuction baffle 2 a, to be directly introduced into thecompression chamber 11 by means of thebarrier 22 and thesuction passage 21 while completely preventing the introduction of the gaseous refrigerant that is heated in theshell 3. - As apparent from the above description, the present invention provides a fixed scroll of a scroll compressor which can allow suctioned gaseous refrigerant to be smoothly introduced into a compression chamber while completely preventing introduction of the remaining gaseous refrigerant that is heated in the compressor, thereby achieving more stable introduction of the gaseous refrigerant and improving the volumetric efficiency of the compressor to achieve an improved compressor performance.
- Further, according to the present invention, the fixed scroll easily achieves effective introduction of suctioned gaseous refrigerant into the compression chamber while completely preventing introduction of heated gaseous refrigerant via a simple deformation in the shape of the fixed scroll without requiring installation of an additional member. This has the effect of simplifying the manufacturing process of the compressor and reducing manufacturing costs thereof.
- Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (16)
1. A fixed scroll of a scroll compressor comprising:
a scroll body having an involuted wrap to define a compression chamber therein;
a mounting flange formed along an outer circumference of a lower end of the scroll body; and
an interceptive suction portion formed at one side of the mounting flange and adapted to guide gaseous refrigerant, that is directed upward along a main frame, into the compression chamber.
2. The fixed scroll as set forth in claim 1 , wherein the interceptive suction portion includes a barrier and a suction passage formed by cutting out part of a lower portion of the mounting flange, the suction passage communicating with the compression chamber defined in the scroll body.
3. The fixed scroll as set forth in claim 2 , wherein one side of the suction passage forms a first inclined surface that is successively extended from a distal end of the wrap by a predetermined inclination to guide the gaseous refrigerant into the compression chamber through the suction passage.
4. The fixed scroll as set forth in claim 3 , wherein the other side of the suction passage forms a second inclined surface that is inclined relative to the wrap by a predetermined inclination to guide the gaseous refrigerant into the compression chamber through the suction passage.
5. A compression unit of a scroll compressor comprising:
a fixed scroll having an involuted wrap to define a compression chamber therein;
an orbiting scroll configured to be engaged with the fixed scroll to allow gaseous refrigerant, introduced into the compression chamber, to be compressed in accordance with an orbiting motion of the orbiting scroll;
a mounting flange formed around a lower end of the fixed scroll to be arranged on an upper surface of a main frame; and
an interceptive suction portion formed at the fixed scroll to guide the gaseous refrigerant, that is upwardly directed along the main frame, into the compression chamber.
6. The compression unit as set forth in claim 5 , wherein a suction baffle is formed at one side of the main frame to allow the suctioned gaseous refrigerant to strike the suction baffle to thereby be partially directed into the compression chamber.
7. The compression unit as set forth in claim 6 , wherein the suction baffle, having a concave shape, extends to the interceptive suction portion.
8. The compression unit as set forth in claim 5 , wherein the interceptive suction portion includes a barrier and a suction passage formed by cutting out part of a lower portion of the mounting flange, the suction passage communicating with the compression chamber.
9. The compression unit as set forth in claim 8 , wherein one side of the suction passage forms a first inclined surface that is successively extended from a distal end of the wrap by a predetermined inclination to guide the gaseous refrigerant into the compression chamber through the suction passage.
10. The compression unit as set forth in claim 9 , wherein the other side of the suction passage forms a second inclined surface that is inclined relative to the wrap by a predetermined inclination to guide the gaseous refrigerant into the compression chamber through the suction passage.
11. A scroll compressor comprising:
a sealed shell provided with a suction pipe and a discharge pipe;
a crankshaft arranged in the shell while being supported by main and sub frames;
a compression unit coupled to the crankshaft and adapted to compress gaseous refrigerant that is suctioned via the suction pipe; and
an interceptive suction portion formed at the compression unit to allow the suctioned gaseous refrigerant to strike a suction baffle formed at the main frame to thereby be partially introduced into a compression chamber defined in the compression unit.
12. The scroll compressor as set forth in claim 11 , wherein the compression unit includes:
a fixed scroll having an involuted wrap to define the compression chamber therein;
an orbiting scroll configured to be engaged with the fixed scroll to allow the gaseous refrigerant, introduced into the compression chamber, to be compressed in accordance with an orbiting motion of the orbiting scroll; and
a mounting flange formed around a lower end of the fixed scroll to be arranged on an upper surface of the main frame.
13. The scroll compressor as set forth in claim 11 , wherein the suction baffle, having a concave shape, extends to the interceptive suction portion.
14. The scroll compressor as set forth in claim 12 , wherein the interceptive suction portion includes a barrier and a suction passage formed by cutting out part of a lower portion of the mounting flange, the suction passage communicating with the compression chamber.
15. The scroll compressor as set forth in claim 14 , wherein one side of the suction passage forms a first inclined surface that is successively extended from a distal end of the wrap by a predetermined inclination to guide the gaseous refrigerant into the compression chamber through the suction passage.
16. The scroll compressor as set forth in claim 15 , wherein the other side of the suction passage forms a second inclined surface that is inclined relative to the wrap by a predetermined inclination to guide the gaseous refrigerant into the compression chamber through the suction passage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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KR1020050026583A KR100696123B1 (en) | 2005-03-30 | 2005-03-30 | A fixed scroll for scroll compressor |
KR10-2005-0026583 | 2005-03-30 |
Publications (1)
Publication Number | Publication Date |
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US20060222545A1 true US20060222545A1 (en) | 2006-10-05 |
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ID=37030062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/213,005 Abandoned US20060222545A1 (en) | 2005-03-30 | 2005-08-26 | Fixed scroll of scroll compressor |
Country Status (4)
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US (1) | US20060222545A1 (en) |
JP (1) | JP4880955B2 (en) |
KR (1) | KR100696123B1 (en) |
CN (1) | CN100406741C (en) |
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US11619228B2 (en) | 2021-01-27 | 2023-04-04 | Emerson Climate Technologies, Inc. | Compressor having directed suction |
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CN108331752A (en) * | 2018-04-19 | 2018-07-27 | 江西三友压缩机有限公司 | Electromechanical double-acting screw compressor |
CN108412765A (en) * | 2018-04-19 | 2018-08-17 | 江西三友压缩机有限公司 | Electromechanical dual-drive moves single action disk screw compressor |
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- 2005-08-26 US US11/213,005 patent/US20060222545A1/en not_active Abandoned
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Cited By (19)
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US8974198B2 (en) | 2009-08-10 | 2015-03-10 | Emerson Climate Technologies, Inc. | Compressor having counterweight cover |
US10995974B2 (en) | 2012-09-13 | 2021-05-04 | Emerson Climate Technologies, Inc. | Compressor assembly with directed suction |
US10928108B2 (en) | 2012-09-13 | 2021-02-23 | Emerson Climate Technologies, Inc. | Compressor assembly with directed suction |
US10605244B2 (en) | 2014-10-27 | 2020-03-31 | Danfoss Commercial Compressors S.A. | Scroll compressor provided with an orbiting guiding portion for improving the filling of the compression chambers |
US20170002811A1 (en) * | 2015-06-30 | 2017-01-05 | Bitzer Kuehlmaschinenbau Gmbh | Cast-in offset fixed scroll intake opening |
US9890784B2 (en) * | 2015-06-30 | 2018-02-13 | Bitzer Kuehlmaschinenbau Gmbh | Cast-in offset fixed scroll intake opening |
EP3382204A4 (en) * | 2015-11-23 | 2018-11-21 | Gree Electric Appliances, Inc. of Zhuhai | Turbo compressor and electrical product comprising same |
CN114857001A (en) * | 2019-01-21 | 2022-08-05 | 翰昂汽车零部件有限公司 | Scroll compressor having a discharge port |
US11225968B2 (en) * | 2019-01-21 | 2022-01-18 | Hanon Systems | Scroll compressor |
CN111456934A (en) * | 2019-01-21 | 2020-07-28 | 翰昂汽车零部件有限公司 | Scroll compressor having a discharge port |
US11608830B2 (en) | 2019-01-21 | 2023-03-21 | Hanon Systems | Scroll compressor |
US11236748B2 (en) | 2019-03-29 | 2022-02-01 | Emerson Climate Technologies, Inc. | Compressor having directed suction |
US11767838B2 (en) | 2019-06-14 | 2023-09-26 | Copeland Lp | Compressor having suction fitting |
US20210396228A1 (en) * | 2020-06-17 | 2021-12-23 | Lg Electronics Inc. | Scroll compressor |
US11549511B2 (en) * | 2020-06-17 | 2023-01-10 | Lg Electronics Inc. | Scroll compressor |
US11739751B2 (en) | 2020-06-17 | 2023-08-29 | Lg Electronics Inc. | Scroll compressor |
EP4191063A4 (en) * | 2020-07-27 | 2024-08-28 | Copeland Climate Tech Suzhou Co Ltd | Fixed scroll and scroll compressor |
US11248605B1 (en) | 2020-07-28 | 2022-02-15 | Emerson Climate Technologies, Inc. | Compressor having shell fitting |
US11619228B2 (en) | 2021-01-27 | 2023-04-04 | Emerson Climate Technologies, Inc. | Compressor having directed suction |
Also Published As
Publication number | Publication date |
---|---|
KR20060104431A (en) | 2006-10-09 |
KR100696123B1 (en) | 2007-03-22 |
JP4880955B2 (en) | 2012-02-22 |
CN100406741C (en) | 2008-07-30 |
CN1840913A (en) | 2006-10-04 |
JP2006283753A (en) | 2006-10-19 |
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