CN1782399A - Rotary 2 stage compressor - Google Patents
Rotary 2 stage compressor Download PDFInfo
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- CN1782399A CN1782399A CNA200510103932XA CN200510103932A CN1782399A CN 1782399 A CN1782399 A CN 1782399A CN A200510103932X A CNA200510103932X A CN A200510103932XA CN 200510103932 A CN200510103932 A CN 200510103932A CN 1782399 A CN1782399 A CN 1782399A
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- suction pipe
- high pressure
- low pressure
- important document
- compression
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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
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
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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
- F04C23/001—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 of similar working principle
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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
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
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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
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
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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
- F04C2240/00—Components
- F04C2240/40—Electric motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/902—Hermetically sealed motor pump unit
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
本发明的目的在于提供一种降低配管内的流体损失并且容易制造的2级压缩机。该旋转式2级压缩机，在密封容器内具有低压用压缩要件和高压用压缩要件、和与低压用压缩要件的压缩室连接的中间空间，在密封容器内，形成至少3处的大致圆形的贯通孔，具备通过贯通孔而与低压用压缩要件连通的低压用吸入管、通过贯通孔而与中间空间连通的中间用排出管、通过贯通孔而与高压用压缩要件连通的高压用吸入管，沿旋转轴的纵向列状设置贯通孔。
An object of the present invention is to provide a two-stage compressor that reduces fluid loss in piping and is easy to manufacture. This rotary two-stage compressor has a low-pressure compression element, a high-pressure compression element, and an intermediate space connected to a compression chamber of the low-pressure compression element in a sealed container, and forms approximately circular shapes at least three places in the sealed container. The through-hole has a low-pressure suction pipe that communicates with the low-pressure compression element through the through-hole, an intermediate discharge pipe that communicates with the intermediate space through the through-hole, and a high-pressure suction pipe that communicates with the high-pressure compression element through the through-hole. , the through-holes are arranged in a longitudinal row along the rotation axis.
Description
Technical field
The present invention relates to be used for have rotary 2 stage compressors of the air conditioner of freeze cycle.
Background technique
In the past, as rotary 2 stage compressors that are used for freeze cycle, known for example have the spy open disclosed structure in the clear 60-128990 communique (below, be called patent documentation 1).The compressor of the conventional art has the motor that is made of stator and rotor on the top of the inside of seal container.The running shaft that is connected on the motor has 2 eccentric parts.As the compressing mechanism corresponding,, set gradually high pressure with compressing important document and low pressure with compressing important document from motor one side in the inside of seal container with these eccentric parts.
Each compresses important document, and the off-centre rotation of the eccentric part by running shaft makes the roller revolution motion.180 ° of the phase phase differences of these eccentric parts, each phase difference that compresses the compression section of important document is 180 °.Promptly the compression section of 2 compression important documents is an antiphase.
Working fluid is a gas refrigerant, is drawn into low pressure with being compressed in the compression important document with low pressure Ps, presses Pm in the middle of rising to.At this moment, by being located at the through hole in the seal container, from sucking with suction pipe with the low pressure that the compression important document is communicated with low pressure.
Gas refrigerant so that the centre presses Pm to discharge with the compression important document from low pressure is discharged to intermediate flow passage from the intermediate space that is located in the seal container.At this moment, by being located at the through hole in the seal container, enter intermediate flow passage with discharge tube from the centre that is communicated with intermediate space.
Then, middle gas refrigerant of pressing Pm, the footpath is inhaled into high pressure with in the compression important document by intermediate flow passage, is compressed into high pressure P d.At this moment, by being located at the through hole in the seal container, from sucking with suction pipe with the high pressure that the compression important document is communicated with high pressure.
Low pressure with suction pipe, it is middle that the outside from seal container is pressed into by devices such as punching presses with discharge tube, high pressure suction pipe, guarantee with pump sealing partly after, engage with seal container by welding.
The gas refrigerant of the high pressure P d that discharges from compressor is after the device condensation that is condensed, with the expansion mechanism low pressure that reduces pressure.Then, use evaporator evaporation, become gas, be drawn into low pressure with in the compression important document.
Patent documentation 1: the spy open clear 60-128990 communique (the 5th page, Fig. 1)
Rotary 2 stage compressors of narrating in background technique are about the not clearly record of position relation that is located at 3 through holes in the seal container.With reference to the accompanying drawings, through hole and the middle through hole of using with discharge tube that low pressure is used with suction pipe with suction pipe and high pressure are with respect to the axle center of running shaft, to contrary direction opening.Therefore, connect high pressure complex-shaped with suction pipe and middle intervalve with discharge tube, have the big problem of fluid loss.
In addition, in the example in the past of background technique, need at least to be pressed into to 2 directions.That is, need be pressed into stroke 2 times.In addition, with in the suction pipe,, also there is the complicated problem of weld job with discharge tube, high pressure with suction pipe, centre at welded seal container and low pressure owing to the direction of welding difference.
Summary of the invention
The object of the present invention is to provide a kind of can addressing the above problem, high-performance and the compressor that is easy to make.
For achieving the above object, rotary section compressor of the present invention possesses in seal container: motor; Running shaft by this motor driving, has two eccentric parts; Rotation compression important document, have low pressure with compression important document and high pressure with the compression important document, this low pressure has respectively in two pressing chambers of the dividing plate setting by connecting this running shaft with the compression important document with compression important document and high pressure rotates and the roller of revolution motion according to the off-centre of described eccentric part; Intermediate space is communicated with the pressing chamber that compresses important document with compression pressing chamber of important document and described high pressure with described low pressure, and separates with the inner space of described seal container; A plurality of through holes are located in the described seal container, vertically are arranged to the row shape along described running shaft; The low pressure suction pipe is communicated with the compression important document with described low pressure by this through hole; Discharge tube is used in the centre, is communicated with described intermediate space by another through hole; The high pressure suction pipe is communicated with the compression important document with described high pressure by other through holes.
In addition, under situation about being provided with the accumulator of the unidirectional major axis of running shaft of motor, preferably, possess connection accumulator and low pressure suction pipe and the middle intervalve of using the roughly U word shape of suction pipe with discharge tube and high pressure of connection with the roughly L word shape of suction pipe; And the assortment axle of the major axis of accumulator and through hole is seen the angle difference from the running shaft of running shaft.
In addition, under the approaching situation of through hole, also can possess with described through hole external, respectively with described low pressure with suction pipe, described centre with discharge tube or described high pressure with the connecting tube roughly cylindraceous that connects in the suction pipe; Described low pressure with suction pipe, described centre with discharge tube or described high pressure with the external diameter of suction pipe, have with respect to described seal container, inside part is less than the different shape of the diameter of external lateral portion; Described connecting tube, have with along described low pressure with suction pipe, described centre with discharge tube or described high pressure mode with the profile of suction pipe, with respect to the external diameter of seal container inside part less than the different shape of the diameter of the external diameter of external lateral portion.
According to the present invention, can be reduced in the fluid loss in the intervalve, low pressure with suction pipe, centre with discharge tube, high pressure with suction pipe to be pressed into stroke easy, can improve producibility.In addition, by making the diameter difference of connecting tube, except that guaranteeing above-mentioned advantage, also improve resistance to pressure.
Description of drawings
Fig. 1 is the sectional arrangement drawing of rotary 2 stage compressors of expression one embodiment of the present invention.
Fig. 2 is the A-A sectional drawing of rotary 2 stage compressors shown in Figure 2.
Fig. 3 is the plan view of seeing from the B direction of Fig. 1, rotary 2 stage compressors shown in Figure 2.
Fig. 4 is the sectional arrangement drawing of rotary 2 stage compressors of expression one embodiment of the present invention.
Fig. 5 is the plan view of the tube portion of rotary 2 stage compressors shown in Figure 4.
Fig. 6 is the sectional arrangement drawing of rotary 2 stage compressors of expression one embodiment of the present invention.
Fig. 7 is the A-A sectional drawing of rotary 2 stage compressors shown in Figure 6.
Fig. 8 is the formation that adopts the spraying cycle of rotary 2 stage compressors shown in Figure 6.
Among the figure: the 1-compressor, the 2-running shaft, the 13-seal container, 20-compresses important document, 22-tube portion, the 25-suction port, the 27-discharge tube is used discharge tube, 40-intervalve, 41-high pressure suction pipe, 43-connecting tube, 45-injection pipe in the middle of the 38-low pressure suction pipe, 39-.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.At first, in Fig. 1, compressor 1 has the seal container 13 that is made of bottom 21, cap 12 and tube portion 22.The motor 14 that is made of stator 7 and rotor 8 is set above seal container 13 inside.The running shaft 2 that is connected on the motor 14 has 2 eccentric parts 5, by main bearing 9 and 19 supports of supplementary bearing.With respect to this running shaft 2, from motor 14 sides, in order, the main bearing 9, high pressure that the lamination setting has a 9a of end plate portion with compression important document 20b, intermediate clapboard 15, low pressure with compression important document 20a and have the supplementary bearing 19 of the 19a of end plate portion, integrated by fasteners such as bolt (not shown) formation.
The 9a of end plate portion is fixed by welding on the inwall of a portion 22, and supporting spindle holds 9.The 19a of end plate portion is supported by supplementary bearing 19.In addition, present embodiment is with fixed end board 19a such as bolts, but also can be weldingly fixed in the portion 22.
Each compresses important document 20a and 20b, by following formation.The A-A section of Fig. 2 representative table diagrammatic sketch 1, i.e. the low pressure sectional drawing of compression important document 20a.Low pressure with compression important document 20a in, by supplementary bearing 19, cylinder 10a cylindraceous, be entrenched in the roller 11a cylindraceous and the intermediate clapboard 15 of the periphery of eccentric part 5a, constitute pressing chamber 23a.
In addition, high pressure with compression important document 20b in, by main bearing 9, cylinder 10b cylindraceous, be entrenched in the roller 11b cylindraceous and the intermediate clapboard 15 of the periphery of eccentric part 5b, constitute pressing chamber 23b.Above-mentioned pressing chamber 23a, 23b, as shown in Figure 2, by the flat valve 18 that links with the such force application mechanism of ring spring 17, contact on one side cooperates on the periphery of the roller 11a, the 11b that rotate at the eccentric motion with eccentric part 5a, 5b, return motion on one side is divided into pressing chamber 23a, 23b compression volume and sucks the space.
Compression important document 20 is by eccentric part 5 eccentric rotations, drive roller 11.As shown in Figure 1,180 ° in the phase place of eccentric part 5a and eccentric part 5b is different, and the phase difference of the compression section of compression important document 20a, 20b is 180 °.Promptly the compression section of 2 compression important documents is an antiphase.
The arrow of Fig. 1 represents that working fluid is flowing of gas refrigerant.The gas refrigerant of the low pressure Ps that supplies with by pipe arrangement 31 flows down with sucking pipe 38 along accumulator 36, sucking pipe 37 and low pressure successively.Then, the gas refrigerant of low pressure Ps is drawn into low pressure with in the compression important document 20a by suction port 25a, by the eccentric rotation of roller 11a, presses Pm in the middle of being compressed to.
Pressure in the pressing chamber 23a if press the Pm opening in the centre, is pressed the gas refrigerant of Pm once the expulsion valve 28a that reaches predefined pressure opening in the middle of then reaching, just discharge to the discharge space 33 that is communicated with exhaust port 26a.This discharges space 33, be by supplementary bearing 19 and lid 35 and with the space that the seal space 29 in the seal container 31 is isolated, press Pm in the middle of its internal pressure becomes.Discharge the refrigerant gas in space 33, flow down with suction pipe 41 with discharge tube 39, intervalve 40, high pressure along middle successively, be drawn into high pressure with in the compression important document 20b from suction port 25b.
Be drawn into the gas refrigerant of high pressure from suction port 25b,, be compressed to high pressure P d by revolution roller 11b with the middle Pm of pressure in the compression important document 20b.Pressure in the pressing chamber 23b is once the expulsion valve 28b that reaches predefined pressure opening, if at high pressure P d opening, gas refrigerant is the seal space 29 from the inner space that exhaust port 26b is discharged to seal container 13 just.Be discharged to the gas refrigerant in sealing space 29,, discharge from discharge tube 27 through the gap of motor 14.
Below, Fig. 3 is the side view of seeing from the B direction of Fig. 1, Fig. 2.Low pressure with suction pipe 36, middle with discharge tube 39, high pressure with suction pipe 41, be processed to form the through hole 42 of the circle in tube portion 22 by utilizing punch process or drill, be pressed into by punching press etc. respectively and be connected on cylinder 10a, supplementary bearing 19, the cylinder 10b.Through hole 42, along tube portion 22 vertically is that the axial formation 1 of running shaft 2 shown in Figure 1 is listed as.Herein, on through hole 42, be provided with respectively with low pressure with suction pipe 36, middle with discharge tube 39, high pressure connecting tube 43 with the general cylindrical shape that connects in the suction pipe 41.
Connect accumulator 36 and the low pressure sucking pipe 37 with suction pipe 37, as Fig. 1～shown in Figure 3, inflow entrance and outflow opening have the position relation of distortion.That is, with the axial vertical plane of running shaft, have the roughly shape of L word.Use the intervalve 40 of suction pipe 41 in the middle of connecting with discharge tube 39 and high pressure, have the roughly shape of U word.These pipes are all by being welded to connect.
In addition, as shown in Figure 2, according to the shape of sucking pipe 37, accumulator 36 is by the angle setting different with the assortment direction of through hole 42 of its major axis.This differential seat angle is defined in more than 20 °.
Owing to sucking pipe 37 is defined as roughly L word shape, so the complicated shape ground that intervalve 40 can not form in the past connects with the U word shape middle with discharge tube 39 and high pressure suction pipe 41.Therefore, can shorten the mobile distance that sucking pipe 37 and intervalve 40 add gas refrigerant together, reduce fluid loss.In addition, as shown in Figure 2, the most peripheral of intervalve 40 can be less than the most peripheral of accumulator 36, thereby compactedness is also good.
In addition,, thereby shown in the arrow C of Fig. 2, can be pressed into low pressure from a direction and use discharge tube 39 and high pressure with suction pipe 41, be pressed into stroke so can simplify with suction pipe 38, centre owing to row form through hole 42.Because through hole 42 and connecting tube 43 or connecting tube 43 and low pressure is with suction pipe 38, middle with the welding with suction pipe 41 of discharge tube 39, high pressure, also can be from direction welding, so can simplify the stroke of location etc.In addition, because the differential seat angle of intervalve 40 and accumulator 36 is more than 20 °, the operation when therefore welding is also good.According to above-mentioned effect, the present invention except that the fluid loss that reduces pipe arrangement, can also improve producibility.
Below, with reference to Fig. 4, Fig. 5, application examples of the present invention is described.In application examples, with the external diameter Φ d of the inboard of tube portion 22 less than the mode moulding low pressure of the external diameter Φ D in the outside of tube portion 22 with suction pipe 38, middle with discharge tube 39 and high pressure with suction pipe 41.Promptly by deep-draw or expander, with different diameter moulding.Equally, the external diameter of inboard that also connecting tube 43 is formed a portion 22 is less than the external diameter in the outside, or forms along low pressure with suction pipe 38, middle with discharge tube 39 and the high pressure shape with the profile of suction pipe 41.
Therefore, even owing to the size because of cylinder 10 or supplementary bearing 19, Φ d is restricted, and also can freely enlarge Φ D, so can reduce the fluid loss of pipe arrangement part.In addition,, can reduce to be located at the aperture (Φ d ') of the through hole in the portion 22, so increase the sectional area of 43 of the through holes of the tube portion 2 shown in the dotted line of Fig. 4, raising seal container 13 withstand voltage owing to compare with the aperture of 43 distances of through hole of same Φ D.
In addition,,, can suppress the distortion that the interior pressure of seal container 13 causes, improve resistance to pressure by protruding the part 44 that moulding is used for moulding through hole 43 as Fig. 4, shown in Figure 5.
Below, with reference to Fig. 6, Fig. 7, application examples of the present invention is described.In application examples, injection pipe 45 is set on intervalve 40.As shown in Figure 7, injection pipe 45 is above compressor 1, with respect to the central shaft of intervalve 40, with accumulator 36 contrary direction settings.The external diameter of injection pipe 45 is less than the external diameter of intervalve 40, and the mounting point is provided with suction pipe 41 near high pressure.In addition, the height setting of injection pipe 45 is on the top of the 9a of end plate portion.
The spraying cycle of application examples is described with reference to Fig. 8.This air conditioner is a spraying cycle.From using the refrigerant gas of the high pressure P d that rotary 2 stage compressors 1 of the present invention discharge, after device 3 condensations that are condensed, with the 1st expansion mechanism 4a expansion, Pm is pressed in the pressure centre of reducing pressure.The refrigeration agent of this decompression is separated into gas and liquid by gas-liquid separator 6.The liquid refrigerant that separates with the 2nd expansion mechanism 4b in the downstream that is positioned at gas-liquid separator 6, behind the low pressure Ps that further reduces pressure, with vaporizer 16 evaporations, becomes gas refrigerant.The liquid refrigerant of low pressure Ps is drawn into low pressure with in the compression important document 20a by suction port 25a, is entrenched in the roller 11a of eccentric part 5a by revolution, presses Pm in the middle of being compressed to, and row is to intervalve 40.
The gas refrigerant of intervalve 40 mixes with the gas refrigerant of the middle Pm of pressure that imports from the injection pipe 45 that is communicated with gas-liquid separator 6 and intermediate flow passage 30., by suction port 25b be drawn into high pressure with the gas refrigerant of compression important document 20b in the middle of pressing Pm, be entrenched in roller 11b on the eccentric part 5b, be compressed to high pressure P d, discharge from discharge tube 27 by revolution thereafter.
So spraying cycle owing at vaporizer 16, is shunted the low gas refrigerant of thermal conductivity, so reduces to the low pressure unnecessary circulating load of compressing important document 20a, reduction compression work, the achievement coefficient COP of raising air conditioner.
In should use-case, as Fig. 6, shown in Figure 7 owing to injection pipe 45 is set in the contrary direction of accumulator 36, thus the heat that can suppress between the two move, can stable operation.In addition, by above-mentioned configuration, the operation the during welding of injection pipe 45 or accumulator 36 is also good.
Claims (3)
1. rotary 2 stage compressors is characterized in that possessing in seal container:
Motor;
Running shaft by this motor driving, has two eccentric parts;
Rotation compression important document, have low pressure with compression important document and high pressure with the compression important document, this low pressure has in two pressing chambers that are set as by the dividing plate that connects this running shaft the off-centre according to described eccentric part respectively and rotates and the roller of revolution motion with compressing important document with compression important document and high pressure;
Intermediate space is communicated with the pressing chamber that compresses important document with compression pressing chamber of important document and described high pressure with described low pressure, and separates with the inner space of described seal container;
A plurality of through holes are located in the described seal container, vertically are arranged to the row shape along described running shaft;
The low pressure suction pipe is communicated with the compression important document with described low pressure by this through hole;
Discharge tube is used in the centre, is communicated with described intermediate space by another through hole;
The high pressure suction pipe is communicated with the compression important document with described high pressure by other through holes.
2. rotary 2 stage compressors as claimed in claim 1, it is characterized in that possessing: have with the accumulator of the unidirectional major axis of described running shaft, be communicated with described accumulator and described low pressure with the suction pipe of the roughly L word shape of suction pipe, be communicated with described in the middle of with discharge tube and described high pressure intervalve with the roughly U word shape of suction pipe;
From the direction of described running shaft, the angle of the assortment axle of the major axis of described accumulator and through hole is different.
3. rotary 2 stage compressors as claimed in claim 1 is characterized in that possessing: with described through hole external and respectively with described low pressure with suction pipe, described centre with discharge tube or described high pressure with the connecting tube roughly cylindraceous that connects in the suction pipe;
Described low pressure has with respect to the residing inside part of described seal container less than the different shape of the diameter of external lateral portion with discharge tube or the described high pressure external diameter with suction pipe with suction pipe, described centre;
Described connecting tube, have with along described low pressure with suction pipe, described centre with discharge tube or described high pressure with the mode of the profile of suction pipe with respect to the external diameter of the residing inside part of seal container less than the different shape of the diameter of the external diameter of external lateral portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004345126A JP2006152931A (en) | 2004-11-30 | 2004-11-30 | Rotary type two-stage compressor |
| JP2004345126 | 2004-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1782399A true CN1782399A (en) | 2006-06-07 |
Family
ID=36631513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200510103932XA Pending CN1782399A (en) | 2004-11-30 | 2005-09-15 | Rotary 2 stage compressor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2006152931A (en) |
| KR (2) | KR20060060542A (en) |
| CN (1) | CN1782399A (en) |
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| CN101666314A (en) * | 2008-09-03 | 2010-03-10 | 富士通将军股份有限公司 | Injectible two-stage rotary compressor |
| CN101482117B (en) * | 2008-01-10 | 2013-03-06 | 富士通将军股份有限公司 | Two-stage rotary compressor |
| CN101684815B (en) * | 2008-09-27 | 2013-04-10 | 乐金电子(天津)电器有限公司 | Secondary rotary compressor |
| CN103850938A (en) * | 2013-12-20 | 2014-06-11 | 珠海凌达压缩机有限公司 | suction and exhaust structure of two-stage compressor |
| CN105402106A (en) * | 2014-09-08 | 2016-03-16 | 三菱电机株式会社 | Compressor And Method For Manufacturing Compressor |
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| JP2008240666A (en) * | 2007-03-28 | 2008-10-09 | Fujitsu General Ltd | Rotary compressor and heat pump system |
| KR101381082B1 (en) * | 2007-07-31 | 2014-04-10 | 엘지전자 주식회사 | 2 stage rotary compressor |
| JP2009079492A (en) * | 2007-09-25 | 2009-04-16 | Fujitsu General Ltd | Two-stage rotary compressor |
| JP2009085027A (en) * | 2007-09-27 | 2009-04-23 | Fujitsu General Ltd | Two-stage compression rotary compressor |
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| JPS61114273U (en) * | 1984-12-26 | 1986-07-19 | ||
| JPH0826853B2 (en) * | 1988-10-31 | 1996-03-21 | 株式会社東芝 | Rotary compressor structure and manufacturing method |
| JP4045154B2 (en) * | 2002-09-11 | 2008-02-13 | 日立アプライアンス株式会社 | Compressor |
| JP4158102B2 (en) * | 2003-03-19 | 2008-10-01 | 三菱電機株式会社 | Multistage compressor |
| JP2004317004A (en) * | 2003-04-15 | 2004-11-11 | Sanyo Electric Co Ltd | Refrigeration cycle device |
-
2004
- 2004-11-30 JP JP2004345126A patent/JP2006152931A/en not_active Withdrawn
-
2005
- 2005-08-24 KR KR1020050077565A patent/KR20060060542A/en not_active Ceased
- 2005-09-15 CN CNA200510103932XA patent/CN1782399A/en active Pending
-
2006
- 2006-12-28 KR KR1020060136229A patent/KR20070009958A/en not_active Withdrawn
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| CN101482117B (en) * | 2008-01-10 | 2013-03-06 | 富士通将军股份有限公司 | Two-stage rotary compressor |
| CN101666314A (en) * | 2008-09-03 | 2010-03-10 | 富士通将军股份有限公司 | Injectible two-stage rotary compressor |
| CN101684815B (en) * | 2008-09-27 | 2013-04-10 | 乐金电子(天津)电器有限公司 | Secondary rotary compressor |
| CN103850938A (en) * | 2013-12-20 | 2014-06-11 | 珠海凌达压缩机有限公司 | suction and exhaust structure of two-stage compressor |
| CN103850938B (en) * | 2013-12-20 | 2016-07-06 | 珠海凌达压缩机有限公司 | suction and exhaust structure of two-stage compressor |
| CN105402106A (en) * | 2014-09-08 | 2016-03-16 | 三菱电机株式会社 | Compressor And Method For Manufacturing Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20060060542A (en) | 2006-06-05 |
| JP2006152931A (en) | 2006-06-15 |
| KR20070009958A (en) | 2007-01-19 |
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