CN103511273A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
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- CN103511273A CN103511273A CN201310169667.XA CN201310169667A CN103511273A CN 103511273 A CN103511273 A CN 103511273A CN 201310169667 A CN201310169667 A CN 201310169667A CN 103511273 A CN103511273 A CN 103511273A
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- rotary compressor
- dividing plate
- bent axle
- annular housing
- bearing
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Abstract
The invention discloses a rotary compressor. The rotary compressor comprises a housing, an air cylinder, a separate plate, an annular chamber, a main bearing, a supplementary bearing, a crankshaft, a piston and a balancing piece. The air cylinder is arranged in the housing; the separate plate is arranged on the air cylinder; the annular chamber is arranged on the separate plate; the main bearing is arranged on the annular chamber, so that a balancing chamber is formed among the main bearing, the annular chamber and the separate plate; the main bearing is sleeved by a main muffler; the supplementary bearing is arranged under the cylinder, and is sleeved by a supplementary muffler; a compression chamber is formed among the supplementary bearing, the cylinder and the separate plate; the upper end of the crankshaft protrudes upward after penetrating the separate plate and the main bearing successively; the crankshaft is provided with an eccentric portion; the eccentric portion is sleeved by the piston; and the balancing piece is sleevedly arranged on the crankshaft, and in the balancing chamber. The balancing piece is arranged above the eccentric portion, so that problems that compressors with large eccentricity is not capable of realizing core adjustment, and oil will accumulate in the balancing chamber are solved.
Description
Technical field
The present invention relates to compressor constructions technical field, especially relate to a kind of rotary compressor.
Background technique
Traditional single cylinder rotary compressor is owing to having eccentric part, therefore in bent axle rotation process, eccentric part and the piston that is set in eccentric part outside have larger centrifugal force when rotating, while is due to the effect that perturbs of the bent axle in running up, thereby can aggravate abrasion and the vibration of bent axle, cause compressor work Efficiency Decreasing.At present, a solution is to adopt jack shaft equilibrium block scheme, on bent axle, increase by one for the equilibrium block of balance eccentric part and piston, this equilibrium block is located in a counter balance pocket between eccentric part and bent axle countershaft section (being positioned at the below of eccentric part), thereby has solved abrasion and vibration problem that the centrifugal force of compressor eccentric weight brings.
Summary of the invention
The application be based on inventor to the understanding of the following fact and discovery: because equilibrium block is arranged on the below of eccentric part, therefore the space (separating with compression chamber) consisting of with eccentric part piston is positioned at the top of counter balance pocket and communicates with counter balance pocket, the oil (refrigerator oil) of eccentric part oilhole ejection can flow into counter balance pocket like this, causes oil starvation between piston and eccentric part.And, for avoiding equilibrium block to compress refrigerator oil, need to design special passage for discharging the long-pending oil in counter balance pocket, cause the structure of compressor more complicated, in order to guarantee the lubricated of slide plate and other positions, need to increase compressor and freeze machine oil enclosed volume simultaneously, increase cost.In addition, when compressor is adjusted core, piston can only be installed from spindle end, for the machine that offset is larger, possibly cannot realize assembling.
The present invention is intended at least solve one of technical problem existing in prior art.For this reason, one object of the present invention is to propose a kind of rotary compressor, and the equilibrium block of this rotary compressor is positioned at the top of eccentric part, has solved the large machine of offset and cannot adjust core and the long-pending oily problem of counter balance pocket.
According to rotary compressor of the present invention, comprising: housing; Cylinder, described cylinder is located in described housing; Dividing plate, described dividing plate be located at described cylinder above; Annular housing, described annular housing be located at described dividing plate above; Main bearing, described main bearing be located at described annular housing above to limit counter balance pocket between described main bearing, described annular housing and described dividing plate, the outside of described main bearing is arranged with main baffler; Supplementary bearing, described supplementary bearing be located at described cylinder below and the outside of described supplementary bearing be arranged with secondary baffler, between described supplementary bearing, described cylinder and described dividing plate, limit compression chamber; Bent axle, the upper end of described bent axle extends upward through described dividing plate and described main bearing successively, on described bent axle, has eccentric part, and described eccentric part is positioned at described compression chamber; Piston, described piston sleeve is located at the outside of described eccentric part; And for the equilibrium block of piston described in balance and described eccentric part, described equilibrium block is set on described bent axle and is positioned at described counter balance pocket.
The present invention by the improvement to equilibrium block setting position, is about to equilibrium block and is located at the counter balance pocket that is positioned at eccentric part and piston top, thereby solved the problem that the large machine of offset cannot be adjusted core, improved application area.And, the refrigerator oil that oil circuit in eccentric part sprays can not flow in counter balance pocket, avoid the outer circumferential face of eccentric part and the inner peripheral surface of piston to occur the problem of refrigerator oil deficiency, also solved the long-pending oily phenomenon in counter balance pocket simultaneously, therefore without design dedicated channel, be used for discharging long-pending oil.In addition, the cylinder of rotary compressor of the present invention and be positioned at parts such as supplementary bearing below cylinder etc. with respect to the bottom surface of housing without increasing, therefore do not need to increase the enclosed volume of the freezing long-pending oil of rotary compressor, further simplified the structure of this rotary compressor.
In addition, according to rotary compressor of the present invention, can also there is following additional technical feature:
In one embodiment of the invention, described annular housing and described dividing plate are integrally formed.Facilitate so the whole manufacturing of annular housing and dividing plate, be conducive to improve the bulk strength of the two simultaneously.
In another embodiment of the present invention, described annular housing and described main bearing are integrally formed.Facilitate so the whole manufacturing of annular housing and main bearing, be conducive to improve the bulk strength of the two simultaneously.
In another embodiment of the present invention, the upper end of described annular housing is removably connected with described main bearing and the lower end of described annular housing is removably connected with described dividing plate.Separately the machine shaping of widget is relatively easy, the machining accuracy that therefore adopt that independent machining spindle holds, annular housing and dividing plate can improve each parts, and course of working is also more prone to simultaneously.
In one embodiment of the invention, described counter balance pocket communicates with described main baffler, and on described dividing plate, is formed with the first exhaust passage communicating with described compression chamber and described counter balance pocket respectively.
Further, in described the first exhaust passage, be provided with first row air valve.
In some embodiments of the invention, described rotary compressor also comprises secondary baffler, described secondary baffler is set between the outside of described supplementary bearing and described secondary baffler and described main baffler by the second exhaust channel connection, is formed with the San exhaust passage communicating with described compression chamber and described secondary baffler respectively on described supplementary bearing.
Further, in described San exhaust passage, be provided with second row air valve.
In one embodiment of the invention, described equilibrium block and described bent axle are integrally formed.
In one embodiment of the invention, described equilibrium block is removably connected with described bent axle.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming embodiment's description, wherein:
Fig. 1 is the partial schematic diagram of rotary compressor according to an embodiment of the invention;
Fig. 2 is the partial schematic diagram of rotary compressor in accordance with another embodiment of the present invention;
Fig. 3 is the partial schematic diagram of another embodiment's the rotary compressor according to the present invention;
Fig. 4 is the partial schematic diagram of another embodiment's the rotary compressor according to the present invention;
Fig. 5 is the enlarged view that Fig. 4 centre circle shows C portion;
Fig. 6 is the schematic diagram of bent axle, eccentric part and the equilibrium block of rotary compressor according to an embodiment of the invention;
Fig. 7 is the plan view of the bent axle shown in Fig. 6, eccentric part and equilibrium block.
Description of reference numerals:
Dividing plate 3;
Main bearing 5, main baffler 51;
Bent axle 7, eccentric part 71;
Piston 8;
The first exhaust path 10 1, the second exhaust path 10 2, San exhaust passage 103, first row air valve 104, second row air valve 105;
Compression chamber A, counter balance pocket B.
Embodiment
Describe embodiments of the invention below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of indications such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, the implication of " a plurality of " is two or more, unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, First Characteristic Second Characteristic it " on " or D score can comprise that the first and second features directly contact, also can comprise that the first and second features are not directly contacts but contact by the other feature between them.And, First Characteristic Second Characteristic " on ", " top " and " above " comprise First Characteristic directly over Second Characteristic and oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " comprise First Characteristic under Second Characteristic and tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
Below with reference to Fig. 1-Fig. 7, describe according to the rotary compressor 100 of the embodiment of the present invention.
As Figure 1-Figure 5, cylinder 2 is located in housing 1, and for example cylinder 2 can be located at the inner bottom part of housing 1, i.e. the inner bottom surface of contiguous housing 1.Dividing plate 3 be located at cylinder 2 above, for example dividing plate 3 can be by a plurality of bolton with the upper end of cylinder 2.Annular housing 4 be located at dividing plate 3 above, the outer circumferential face of annular housing 4 is preferably concordant with the outer circumferential face of dividing plate 3.
Main bearing 5 be located at annular housing 4 above to limit counter balance pocket (the label B in accompanying drawing) between main bearing 5, annular housing 4 and dividing plate 3, specifically this counter balance pocket by below main bearing 5, the inner peripheral surface of annular housing 4 and limiting above of dividing plate 3.The outside of main bearing 5 is arranged with main baffler 51, noise when this main baffler 51 is worked for reducing rotary compressor 100.
As Figure 1-Figure 5, the upper end of bent axle 7 extends upward through dividing plate 3 and main bearing 5 successively, on bent axle 7, there is eccentric part 71, wherein eccentric part 71 is positioned at compression chamber, can be spaced apart between the lower surface of the upper surface of eccentric part 71 and dividing plate 3, the lower surface of eccentric part 71 can be the thrust surface being bearing on supplementary bearing 6.Eccentric part 71 and the preferred one manufacturing of bent axle 7, what certainly can understand is, eccentric part 71 also can distinguish processing separately with bent axle 7, then eccentric part 71 is set in to the outside of bent axle 7 and guarantees to be rigidly connected between eccentric part 71 and bent axle 7 to drive during bent axle 7 rotation eccentric part 71 to synchronize rotation.
As Figure 1-Figure 4, piston 8 is set in the outside of eccentric part 71, and the lower surface of piston 8 only supports slidably the upper surface of supplementary bearing 6 and the upper surface of piston 8 and only supports slidably the lower surface of dividing plate 3, and the upper surface of piston 8 is higher than the upper surface of eccentric part 71.Eccentric part 71 can drive the central axis rotation of piston 8 flexing axles 7.
As shown in Fig. 1, Fig. 6 and Fig. 7, equilibrium block 9 is set on bent axle 7 and is positioned at counter balance pocket, and this equilibrium block 9 is for equalizing piston 8 and eccentric part 71.Particularly, during rotary compressor 100 running, due to eccentric part 71 and be set in its outside piston 8 be subject to centrifugal force, suffered centrifugal force when this equilibrium block 9 rotates for balance eccentric part 71 and piston 8, thereby wearing and tearing and vibration problems that compressor brings due to eccentric weight have been solved, the working life of having improved compressor.
For example, the orthographic projection of the center of gravity of equilibrium block 9 in a plane of central axis that is orthogonal to bent axle 7, the orthographic projection with the whole center of gravity of eccentric part 71 and 8 liang of parts of piston in this plane are about the central axis radial symmetric of bent axle 7.Be understandable that, about the principle of equilibrium block 9 equalizing pistons 8 and eccentric part 71, for prior art and known by those skilled in the art, brief description only, is not described in detail here.
Owing to taking in the counter balance pocket of equilibrium block 9 and be positioned at the top of compression chamber, be positioned at the top of piston 8 and eccentric part 71, so the refrigerator oil that the oil circuit in eccentric part 71 sprays can not flow into counter balance pocket, make the structure of rotary compressor 100 simpler, also solved the problem that offset large machine cannot be adjusted core simultaneously.
The present invention by the improvement to equilibrium block 9 setting positions, is about to equilibrium block 9 and is located at the counter balance pocket that is positioned at eccentric part 71 and piston 8 tops, thereby solved the problem that the large machine of offset cannot be adjusted core, improved application area.And, the refrigerator oil that oil circuit in eccentric part 71 sprays can not flow in counter balance pocket, avoid the outer circumferential face of eccentric part 71 and the inner peripheral surface of piston 8 to occur the problem of refrigerator oil deficiency, also solved the long-pending oily phenomenon in counter balance pocket simultaneously, therefore without design dedicated channel, be used for discharging long-pending oil.In addition, the cylinder 2 of rotary compressor 100 of the present invention and be positioned at the parts of cylinder below 2 such as supplementary bearing 6 grades with respect to the bottom surface of housing 1 without increasing, therefore do not need to increase the enclosed volume of the freezing long-pending oil of rotary compressor 100, further simplified the structure of this rotary compressor 100.
Shown in Fig. 1, in one embodiment of the invention, annular housing 4 is integrally formed with dividing plate 3.For example annular housing 4 and the whole manufacturing of dividing plate 3, as one cast molding, facilitate annular housing 4 and the whole manufacturing of dividing plate 3 like this, is conducive to improve the bulk strength of the two simultaneously.
As shown in Figure 2, in another embodiment of the present invention, the upper end of annular housing 4 is removably connected with main bearing 5 and the lower end of annular housing 4 is removably connected with dividing plate 3, in other words, in this embodiment, main bearing 5, annular housing 4 and dividing plate 3 independent manufacturing respectively, be then assembled together.Separately the machine shaping of widget is relatively easy, the machining accuracy that therefore adopt that independent machining spindle holds 5, annular housing 4 and dividing plate 3 can improve each parts, and course of working is also more prone to simultaneously.
As shown in Figure 3, in another embodiment of the present invention, annular housing 4 is integrally formed with main bearing 5, that is to say, in this embodiment, annular housing 4 is a part for main bearing 5.For example annular housing 4 and the whole manufacturing of main bearing 5, as one cast molding, facilitate annular housing 4 and the whole manufacturing of main bearing 5 like this, is conducive to improve the bulk strength of the two simultaneously.
In a preferred embodiment of the invention, shown in Fig. 4 and Fig. 5, counter balance pocket communicates with main baffler 51, and on dividing plate 3, be formed with the first exhaust path 10 1 communicating with compression chamber and counter balance pocket respectively, like this after the compressing refrigerant gas in 8 pairs of compression chambers of piston, high pressure refrigerant gas flows into counter balance pocket, from counter balance pocket, flow in main baffler 51 from this first exhaust path 10 1, finally from main baffler 51, flows in housing 1.
Further, between secondary baffler 61 and main baffler 51, by the second exhaust path 10 2, be communicated with, and on supplementary bearing 6, be formed with the San exhaust passage 103 communicating with compression chamber and secondary baffler 61 respectively, like this after the compressing refrigerant gas in 8 pairs of compression chambers of piston, high pressure refrigerant gas flows in secondary baffler 61 from this San exhaust passage 103, from secondary baffler 61, by the second exhaust path 10 2, flows in main baffler 51, finally from main baffler 51, flows in housing 1.
In brief, in this embodiment, high pressure refrigerant gas through piston 8 compressions has two paths that are circulated in housing 1, article one, be the first exhaust path 10 1, counter balance pocket and main baffler 51, another is San exhaust passage 103, secondary baffler 61, the second exhaust path 10 2, main baffler 51, and these two paths collect the high pressure refrigerant gas of outflow and finally enter in housing 1.Adopt this design, can discharge more cold media air through piston 8 compressions, meet the requirement that rotary compressor 100 runs up.
Preferably, in this embodiment, the first exhaust path 10 1 is provided with first row air valve 104 for controlling the break-make of the first exhaust path 10 1.San exhaust passage 103 is provided with second row air valve 105 for controlling the break-make of San exhaust passage 103, and first row air valve 104 and second row air valve 105 can be identical, can certainly be different.
Certainly, be understandable that, the invention is not restricted to this, in other embodiments of the invention, rotary compressor 100 also can only have an above-mentioned wherein path for discharging the cold media air after piston 8 compressions.For example, 100 of rotary compressors have the first exhaust path 10 1, counter balance pocket and main baffler 51 these paths for exhaust.For another example, rotary compressor 100 also can only have San exhaust passage 103, secondary baffler 61, the second exhaust path 10 2, main baffler 51 these paths for exhaust.
In preferred embodiments more of the present invention, equilibrium block 9 can be integrally formed with bent axle 7, that is to say, equilibrium block 9 and the whole manufacturing of bent axle 7, for example one casting forms, now equilibrium block 9 is a part for bent axle 7, can facilitate so the whole manufacturing of equilibrium block 9 and bent axle 7, is conducive to improve the intensity of the two.
Certainly, the invention is not restricted to this, in another embodiment of the present invention, equilibrium block 9 is removably connected with bent axle 7, that is to say, in this embodiment, equilibrium block 9 and bent axle 7 independent manufacturing respectively, be then assembled together.
According to other structure example of the rotary compressor 100 of the embodiment of the present invention, as slide plate, liquid-storage container etc. have been all prior art and have been known by those skilled in the art, can according to existing mode, arrange completely, describe in detail no longer one by one here.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a rotary compressor (100), is characterized in that, comprising:
Housing (1);
Cylinder (2), described cylinder (2) is located in described housing (1);
Dividing plate (3), described dividing plate (3) be located at described cylinder (2) above;
Annular housing (4), described annular housing (4) be located at described dividing plate (3) above;
Main bearing (5), described main bearing (5) be located at described annular housing (4) above to limit counter balance pocket between described main bearing (5), described annular housing (4) and described dividing plate (3), the outside of described main bearing (5) is arranged with main baffler (51);
Supplementary bearing (6), described supplementary bearing (6) be located at described cylinder (2) below, between described supplementary bearing (6), described cylinder (2) and described dividing plate (3), limit compression chamber;
Bent axle (7), the upper end of described bent axle (7) extends upward through described dividing plate (3) and described main bearing (5) successively, has eccentric part (71) on described bent axle (7), and described eccentric part (71) is positioned at described compression chamber;
Piston (8), described piston (8) is set in the outside of described eccentric part (71); And
For the equilibrium block (9) of piston (8) described in balance and described eccentric part (71), described equilibrium block (9) is set in described bent axle (7) above and is positioned at described counter balance pocket.
2. rotary compressor according to claim 1, is characterized in that, described annular housing (4) is integrally formed with described dividing plate (3).
3. rotary compressor according to claim 1, is characterized in that, described annular housing (4) is integrally formed with described main bearing (5).
4. rotary compressor according to claim 1, is characterized in that, the upper end of described annular housing (4) is removably connected with described main bearing (5) and the lower end of described annular housing (4) is removably connected with described dividing plate (3).
5. rotary compressor according to claim 1, is characterized in that, described counter balance pocket communicates with described main baffler (51), and on described dividing plate (3), is formed with the first exhaust passage (101) communicating with described compression chamber and described counter balance pocket respectively.
6. rotary compressor according to claim 5, is characterized in that, is provided with first row air valve (104) in described the first exhaust passage (101).
7. rotary compressor according to claim 1 or 5, it is characterized in that, also comprise secondary baffler (61), described secondary baffler (61) is set between the outside of described supplementary bearing (6) and described secondary baffler (61) and described main baffler (51) by the second exhaust channel connection (102)
On described supplementary bearing (6), be formed with the San exhaust passage (103) communicating with described compression chamber and described secondary baffler respectively.
8. rotary compressor according to claim 7, is characterized in that, is provided with second row air valve (105) in described San exhaust passage (103).
9. rotary compressor according to claim 1, is characterized in that, described equilibrium block (9) is integrally formed with described bent axle (7).
10. rotary compressor according to claim 1, is characterized in that, described equilibrium block (9) is removably connected with described bent axle (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169667.XA CN103511273A (en) | 2013-05-09 | 2013-05-09 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310169667.XA CN103511273A (en) | 2013-05-09 | 2013-05-09 | Rotary compressor |
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| Publication Number | Publication Date |
|---|---|
| CN103511273A true CN103511273A (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310169667.XA Pending CN103511273A (en) | 2013-05-09 | 2013-05-09 | Rotary compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389790A (en) * | 2014-11-07 | 2015-03-04 | 广东美芝制冷设备有限公司 | Low-backpressure compressor |
| CN111336106A (en) * | 2018-12-19 | 2020-06-26 | 沈阳中航机电三洋制冷设备有限公司 | Rotary compressor and method for manufacturing rotary compressor |
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|---|---|---|---|---|
| US4457671A (en) * | 1981-05-11 | 1984-07-03 | Tokyo Shibaura Denki Kabushiki Kaisha | Hermetic type rotary compressor with silencer means |
| JPH01170775A (en) * | 1987-12-25 | 1989-07-05 | Hitachi Ltd | Compressor |
| US4881879A (en) * | 1987-12-24 | 1989-11-21 | Tecumseh Products Company | Rotary compressor gas routing for muffler system |
| US4915554A (en) * | 1987-10-19 | 1990-04-10 | Hitachi, Ltd. | Hermetic rotary compressor with balancing weights |
| JP2013072399A (en) * | 2011-09-28 | 2013-04-22 | Daikin Industries Ltd | Compressor |
| CN203272143U (en) * | 2013-05-09 | 2013-11-06 | 安徽美芝精密制造有限公司 | Rotary compressor |
-
2013
- 2013-05-09 CN CN201310169667.XA patent/CN103511273A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4457671A (en) * | 1981-05-11 | 1984-07-03 | Tokyo Shibaura Denki Kabushiki Kaisha | Hermetic type rotary compressor with silencer means |
| US4915554A (en) * | 1987-10-19 | 1990-04-10 | Hitachi, Ltd. | Hermetic rotary compressor with balancing weights |
| US4881879A (en) * | 1987-12-24 | 1989-11-21 | Tecumseh Products Company | Rotary compressor gas routing for muffler system |
| JPH01170775A (en) * | 1987-12-25 | 1989-07-05 | Hitachi Ltd | Compressor |
| JP2013072399A (en) * | 2011-09-28 | 2013-04-22 | Daikin Industries Ltd | Compressor |
| CN203272143U (en) * | 2013-05-09 | 2013-11-06 | 安徽美芝精密制造有限公司 | Rotary compressor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389790A (en) * | 2014-11-07 | 2015-03-04 | 广东美芝制冷设备有限公司 | Low-backpressure compressor |
| CN104389790B (en) * | 2014-11-07 | 2017-06-06 | 广东美芝制冷设备有限公司 | Low back pressure compressor |
| CN111336106A (en) * | 2018-12-19 | 2020-06-26 | 沈阳中航机电三洋制冷设备有限公司 | Rotary compressor and method for manufacturing rotary compressor |
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Application publication date: 20140115 |