CN103334931A - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
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- CN103334931A CN103334931A CN2013102648673A CN201310264867A CN103334931A CN 103334931 A CN103334931 A CN 103334931A CN 2013102648673 A CN2013102648673 A CN 2013102648673A CN 201310264867 A CN201310264867 A CN 201310264867A CN 103334931 A CN103334931 A CN 103334931A
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- oil return
- return section
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Abstract
The invention provides a rotary compressor which comprises a shell and a compression pump body arranged in the shell, wherein the bottom of the shell is provided with an oil pool used for storing lubricating oil; the compression pump body is provided with a valve seat concave part used for installing an air outlet valve plate; the compression pump body is also provided with an oil return channel, and the lubricating oil accumulated in the valve seat concave part can flow back into the oil pool at the bottom of the shell through the oil return channel; the inner end of the oil return channel is communicated with the valve seat concave part; the outer end of the oil return channel extends to the outer edge of the compression pump body. According to the rotary compressor, the lubricating oil accumulated in the valve seat concave part can flow back into the oil pool at the bottom of the shell of the rotary compressor through the oil return channel, so that the effects of reducing the viscous resistance of the air outlet valve plate and reducing the oil yield of the compressor can be achieved, and the performance of the rotary compressor can be improved.
Description
Technical field
The present invention relates to the Compressor Technology field, relate in particular to a kind of rotary compressor.
Background technique
As shown in Figure 1, it is the compression pump housing 10 of an existing rotary compressor, the described compression pump housing 10 is single casing, comprise cylinder 11, main bearing 12, supplementary bearing 13, bent axle 14, rolling piston 15 and slide plate etc., offer vane slot on the cylinder 11, main bearing 12 and supplementary bearing 13 correspondences are installed in the upper and lower end face of cylinder 11, main bearing 12 is provided with for the valve seat recess 121 that exhaust valve plate is installed, rolling piston 15 is arranged in the cylinder 11, under the drive of bent axle 14, rolling piston 15 rotates, and drives slide plate and move reciprocatingly in vane slot, thereby realizes the work cycle of air-breathing-compression-exhaust.For reducing the pneumatic noise that exhaust produces, the baffler 16 for noise reduction is installed in the upper end of main bearing 12.
Housing bottom at rotary compressor has a certain amount of lubricant oil in order to each moving element in the lubricated rotary compressor.Lubricant oil and cold media air have intersolubility, when compressor operating, the pressurized gas of discharging through overcompression carry lubricant oil process bump cutting out partial lubricant oil in baffler 16, lubricant oil flows in the valve seat recess 121 of main bearing 12 along the inwall of baffler 16, thereby causes accumulating of lubricant oil.The lubricant oil that this part accumulates can increase the viscous resistance of exhaust valve plate on the one hand, causes the performance of compressor to reduce; On the other hand, the air-flow that long-pending oil can be discharged is at a high speed taken away again, and the oil mass of telling of compressor is increased, thereby further influences the heat exchange effect of air-conditioning system.
Summary of the invention
Main purpose of the present invention is to provide a kind of and can reduces the exhaust valve plate viscous resistance and reduce compressor and tell the rotary compressor of oil mass.
To achieve these goals, the invention provides a kind of rotary compressor, comprise housing and be arranged at the interior compression pump housing of described housing, the bottom of described housing is provided with for the oil sump that stores lubricant oil, the described compression pump housing is provided with for the give vent to anger valve seat recess of valve block of installation, the described compression pump housing also is provided with for the lubricant oil of savings in described valve seat recess and is back to drainback passage in the oil sump of described housing bottom, the inner of described drainback passage is connected with described valve seat recess, and the outer end of described drainback passage extends to the outward edge of the described compression pump housing.
Preferably, the described compression pump housing comprises cylinder, main bearing, supplementary bearing, bent axle and rolling piston, described main bearing and supplementary bearing correspondence are installed in the upper and lower end face of cylinder, described rolling piston is arranged in the cylinder and rotates under the drive of described bent axle, the upper end of described main bearing is equipped with the baffler for noise reduction, and described valve seat recess is located on the described main bearing.
Preferably, described drainback passage is located on the described main bearing and along the radially extension of main bearing, the inner of described drainback passage is connected with described valve seat recess, and the outer end of described drainback passage is arranged on the outward edge of described main bearing.
Preferably, described drainback passage comprises the first oil return section and the second oil return section, the described first oil return section is located at extending axially on the described main bearing and along main bearing, the described second oil return section is located on the described cylinder and along the radially extension of cylinder, the upper end of the described first oil return section is connected with described valve seat recess, the inner of the described second oil return section faces with the lower end of the described first oil return section and is communicated with, and the outer end of the described second oil return section is arranged on the outward edge of described cylinder.
Preferably, described drainback passage comprises the first oil return section, the second oil return section and the 3rd oil return section, the described first oil return section is located at extending axially on the described main bearing and along main bearing, the described second oil return section is located at extending axially on the described cylinder and along cylinder, described the 3rd oil return section is located on the described supplementary bearing, the upper end of the described first oil return section is connected with the valve seat recess, the upper end of the described second oil return section faces with the lower end of the described first oil return section and is communicated with, one end of described the 3rd oil return section faces with the lower end of the described second oil return section and is communicated with, and the other end of described the 3rd oil return section is arranged on the outward edge or lower end surface of supplementary bearing.
Preferably, the described compression pump housing comprises upper cylinder, lower cylinder, main bearing, supplementary bearing, bent axle, rolling piston and central diaphragm, described upper cylinder and lower cylinder are located at the upper and lower both sides of described central diaphragm respectively, described main bearing is located at the upper-end surface of described upper cylinder, described supplementary bearing is located at the lower end surface of lower cylinder, described rolling piston is arranged in described upper cylinder and the lower cylinder and rotates under the drive of described bent axle, and described valve seat recess is located on the described central diaphragm.
Preferably, described drainback passage is located on the described central diaphragm and along the radially extension of central diaphragm, the inner of described drainback passage is connected with described valve seat recess, and the outer end of described drainback passage is arranged on the outward edge of described central diaphragm.
Preferably, described drainback passage comprises the first oil return section and the second oil return section, the described first oil return section is located at extending axially on the described central diaphragm and along central diaphragm, the described second oil return section is located on the described lower cylinder and along the radially extension of lower cylinder, the upper end of the described first oil return section is connected with described valve seat recess, the inner of the described second oil return section faces with the lower end of the described first oil return section and is communicated with, and the outer end of the described second oil return section is arranged on the outward edge of described lower cylinder.
Preferably, the described second oil return section is opened in described lower cylinder on the upper surface of described central diaphragm.
Preferably, described drainback passage comprises the first oil return section, the second oil return section and the 3rd oil return section, the described first oil return section is located at extending axially on the described central diaphragm and along central diaphragm, the described second oil return section is located at extending axially on the described lower cylinder and along lower cylinder, described the 3rd oil return section is located on the described supplementary bearing, the upper end of the described first oil return section is connected with described valve seat recess, the upper end of the described second oil return section faces with the lower end of the described first oil return section and is communicated with, one end of described the 3rd oil return section faces with the lower end of the described second oil return section and is communicated with, and the other end of described the 3rd oil return section is arranged on the outward edge or lower end surface of supplementary bearing.
Rotary compressor of the present invention, by setting up drainback passage at the compression pump housing, can make the lubricant oil of savings in the valve seat recess be back to the oil sump of the housing bottom of rotary compressor by described drainback passage, thereby reach the valve block viscous resistance and reduce the effect that compressor is told oil mass of reducing to give vent to anger, to improve the performance of rotary compressor, therefore rotary compressor of the present invention is used for air-conditioning system, can improve the heat exchange effect of air-conditioning system.
Description of drawings
Fig. 1 is the longitudinal sectional drawing of the compression pump housing of an existing rotary compressor.
Fig. 2 is the compression pump housing first embodiment's of rotary compressor of the present invention structural representation.
Fig. 3 is the structural representation of the main bearing of the compression pump housing shown in Figure 2.
Fig. 4 is the compression pump housing second embodiment's of rotary compressor of the present invention structural representation.
Fig. 5 is the structural representation of the main bearing of the compression pump housing shown in Figure 4.
Fig. 6 is the structural representation of the cylinder of the compression pump housing shown in Figure 4.
Fig. 7 is the compression pump housing the 3rd embodiment's of rotary compressor of the present invention structural representation.
Fig. 8 is the compression pump housing the 4th embodiment's of rotary compressor of the present invention structural representation.
Fig. 9 is the structural representation of the central diaphragm of the compression pump housing shown in Figure 8.
Figure 10 is the compression pump housing the 5th embodiment's of rotary compressor of the present invention structural representation.
Figure 11 is the compression pump housing the 6th embodiment's of rotary compressor of the present invention structural representation.
The realization of the object of the invention, functional characteristics and advantage will be in conjunction with the embodiments, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
Main purpose of the present invention is for to improve by the compression pump housing to rotary compressor, namely set up a drainback passage at the compression pump housing, the inner of drainback passage is connected with the valve seat recess of the compression pump housing, the outer end of drainback passage extends to the outward edge of the compression pump housing, can make the lubricant oil of savings in the valve seat recess be back to the oil sump of the housing bottom of rotary compressor by described drainback passage, thereby reach the valve block viscous resistance and reduce the effect that compressor is told oil mass of reducing to give vent to anger, to improve the performance of rotary compressor.Therefore, rotary compressor of the present invention is used for air-conditioning system, can improve the heat exchange effect of air-conditioning system.
First embodiment
As shown in Figures 2 and 3, be first embodiment of the compression pump housing of rotary compressor of the present invention.In the present embodiment, rotary compressor comprises the housing (not shown) and is arranged at the interior compression pump housing 20 of described housing.The bottom of described housing is provided with for the oil sump that stores lubricant oil.The described compression pump housing 20 comprises cylinder 21, main bearing 22, supplementary bearing 23, bent axle 24 and rolling piston 25, main bearing 22 and supplementary bearing 23 correspondences are installed in the upper and lower end face of cylinder 21, rolling piston 25 is arranged in the cylinder 21, and rotates under the drive of bent axle 24.For reducing the pneumatic noise that exhaust produces, the baffler 26 for noise reduction is installed in the upper end of main bearing 22.
During the rotary compressor operation, cylinder 21 interior compressed pressurized gas are carrying lubricant oil and are entering in the baffler 26 from exhaust port 222, constantly clash into back cutting out partial lubricant oil with baffler 26 inwalls process, isolated lubricant oil flows in the valve seat recess 221 of main bearing 22 along the inwall of baffler 26, flow through again with drainback passage a that valve seat recess 221 is connected after be back in the oil sump of housing bottom.After lubricant oil refluxes, can avoid the generation in the valve seat recess 221 inner product oil phenomenon of main bearing 22, thereby reduce the viscous resistance of exhaust valve plate on the one hand, improve the performance of rotary compressor; Can not occur the phenomenon that long-pending oily air-flow of being discharged is at a high speed taken away again on the other hand yet, reduce the oil mass of telling of rotary compressor thus, can improve the heat exchange efficiency of air-conditioning system.
In the present embodiment, drainback passage a only is arranged on the main bearing 22, makes the oil return distance lack and not allow to stop up, and can accelerate the back-flow velocity of lubricant oil and guarantee that lubricant oil refluxes smooth and easy.
Second embodiment
To shown in Figure 6, be second embodiment of the compression pump housing of rotary compressor of the present invention as Fig. 4.In the present embodiment, rotary compressor comprises the housing (not shown) and is arranged at the interior compression pump housing 30 of described housing.The bottom of described housing is provided with for the oil sump that stores lubricant oil.The described compression pump housing 30 comprises cylinder 31, main bearing 32, supplementary bearing 33, bent axle 34 and rolling piston 35, main bearing 32 and supplementary bearing 33 correspondences are installed in the upper and lower end face of cylinder 31, rolling piston 35 is arranged in the cylinder 31, and rotates under the drive of bent axle 34.For reducing the pneumatic noise that exhaust produces, the baffler 36 for noise reduction is installed in the upper end of main bearing 32.
Rotary compressor when operation, the lubricant oil in the valve seat recess 321 on the main bearing 32, the first oil return section road b that flows through earlier and be connected with valve seat recess 321, flowing through enters in the oil sump of housing bottom after being arranged on the second oil return section c on the cylinder 31 again.All the other do not address part with first embodiment, are not repeating.
The 3rd embodiment
As shown in Figure 7, be the 3rd embodiment of the compression pump housing of rotary compressor of the present invention.In the present embodiment, rotary compressor comprises the housing (not shown) and is arranged at the interior compression pump housing 40 of described housing.The bottom of described housing is provided with for the oil sump that stores lubricant oil.The described compression pump housing 40 comprises cylinder 41, main bearing 42, supplementary bearing 43, bent axle 44 and rolling piston 45, main bearing 42 and supplementary bearing 43 correspondences are installed in the upper and lower end face of cylinder 41, rolling piston 45 is arranged in the cylinder 41, and rotates under the drive of bent axle 44.For reducing the pneumatic noise that exhaust produces, the baffler 46 for noise reduction is installed in the upper end of main bearing 42.
During the rotary compressor operation, lubricant oil in the valve seat recess 421 on the main bearing 42, the first oil return section d that flows through earlier and be connected with valve seat recess 421, flowing through enters in the oil sump of housing bottom after being arranged on the second oil return section e on the cylinder 41 and being arranged on the 3rd oil return section f on the supplementary bearing 43 again.All the other do not address part with first embodiment, are not repeating.
The 4th embodiment
As Fig. 8 and shown in Figure 9, be the 4th embodiment of the compression pump housing of rotary compressor of the present invention.In the present embodiment, rotary compressor is the twin-tub form, comprises the housing (not shown) and is arranged at the interior compression pump housing 50 of described housing.The bottom of described housing is provided with for the oil sump that stores lubricant oil.The described compression pump housing 50 comprises upper cylinder (not shown), lower cylinder 51, main bearing (not shown), supplementary bearing 52, bent axle 53, rolling piston 54 and central diaphragm 55, upper cylinder and lower cylinder 51 are located at the upper and lower both sides of central diaphragm 55 respectively, main bearing is located at the upper-end surface of upper cylinder, supplementary bearing 52 is located at the lower end surface of lower cylinder 51, rolling piston 54 is arranged in upper cylinder and the lower cylinder 51, and rotates under the drive of bent axle 53.
Rotary compressor when operation, the lubricant oil in the valve seat recess 551 on the central diaphragm 55, flow through with drainback passage g that valve seat recess 551 is connected after be back in the oil sump of housing bottom.After lubricant oil refluxes, can avoid the generation in the valve seat 71 inner product oil phenomenon of central diaphragm 55, thereby reduce the viscous resistance of exhaust valve plate on the one hand, improve the performance of compressor; Can not occur the phenomenon that long-pending oily air-flow of being discharged is at a high speed taken away again on the other hand yet, reduce the oil mass of telling of compressor thus, improve the heat exchange efficiency of air-conditioning system.
In the present embodiment, drainback passage g only is arranged on the central diaphragm 55, makes the oil return distance lack and not allow to stop up, and can accelerate the back-flow velocity of lubricant oil and guarantee that lubricant oil refluxes smooth and easy.
The 5th embodiment
As shown in figure 10, be the 5th embodiment of the compression pump housing of rotary compressor of the present invention.In the present embodiment, rotary compressor is similarly the twin-tub form, comprises the housing (not shown) and is arranged at the interior compression pump housing 60 of described housing.The bottom of described housing is provided with for the oil sump that stores lubricant oil.The described compression pump housing 60 comprises upper cylinder (not shown), lower cylinder 61, main bearing (not shown), supplementary bearing 62, bent axle 63, rolling piston 64 and central diaphragm 65, upper cylinder and lower cylinder 61 are higher than the upper and lower both sides of central diaphragm 65 respectively, main bearing is located at the upper-end surface of upper cylinder, supplementary bearing 62 is located at the lower end surface of lower cylinder 61, rolling piston 64 is arranged in upper cylinder and the lower cylinder 61, and rotates under the drive of bent axle 63.
During the rotary compressor operation, the lubricant oil in the valve seat recess 651 on the central diaphragm 65, the first oil return section h that flows through earlier and be connected with valve seat recess 651 is back in the oil sump of housing bottom behind the second oil return section i on the lower cylinder 61 of flowing through again.All the other do not address part with the 4th embodiment, are not repeating.
The 6th embodiment
As shown in figure 11, be the 6th embodiment of the compression pump housing of rotary compressor of the present invention.In the present embodiment, rotary compressor is similarly the twin-tub form, comprises the housing (not shown) and is arranged at the interior compression pump housing 70 of described housing.The bottom of described housing is provided with for the oil sump that stores lubricant oil.The described compression pump housing 70 comprises upper cylinder (not shown), lower cylinder 71, main bearing (not shown), supplementary bearing 72, bent axle 73, rolling piston 74 and central diaphragm 75, upper cylinder and lower cylinder 71 are higher than the upper and lower both sides of central diaphragm 75 respectively, main bearing is located at the upper-end surface of upper cylinder, supplementary bearing 72 is located at the lower end surface of lower cylinder 71, rolling piston 74 is arranged in upper cylinder and the lower cylinder 71, and rotates under the drive of bent axle 73.
During the rotary compressor operation, lubricant oil in the valve seat recess 751 on the central diaphragm 75, the first oil return section j that flows through earlier and be connected with valve seat recess 751, on the second oil return section k on the lower cylinder 71 of flowing through again and the supplementary bearing 72 the 3rd oil return section m after be back in the oil sump of housing bottom.All the other do not address part with the 4th embodiment, are not repeating.
The present invention is not limited to above mode of execution, under the disclosed technology contents of above-mentioned mode of execution, can also carry out various variations.Every equivalent structure transformation that utilizes specification of the present invention and accompanying drawing content to do, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. rotary compressor, comprise housing and be arranged at the interior compression pump housing of described housing, the bottom of described housing is provided with for the oil sump that stores lubricant oil, the described compression pump housing is provided with for the give vent to anger valve seat recess of valve block of installation, it is characterized in that, the described compression pump housing also is provided with for the lubricant oil of savings in described valve seat recess and is back to drainback passage in the oil sump of described housing bottom, the inner of described drainback passage is connected with described valve seat recess, and the outer end of described drainback passage extends to the outward edge of the described compression pump housing.
2. rotary compressor as claimed in claim 1, it is characterized in that, the described compression pump housing comprises cylinder, main bearing, supplementary bearing, bent axle and rolling piston, described main bearing and supplementary bearing correspondence are installed in the upper and lower end face of cylinder, described rolling piston is arranged in the cylinder and rotates under the drive of described bent axle, the upper end of described main bearing is equipped with the baffler for noise reduction, and described valve seat recess is located on the described main bearing.
3. rotary compressor as claimed in claim 2, it is characterized in that, described drainback passage is located on the described main bearing and along the radially extension of main bearing, the inner of described drainback passage is connected with described valve seat recess, and the outer end of described drainback passage is arranged on the outward edge of described main bearing.
4. rotary compressor as claimed in claim 2, it is characterized in that, described drainback passage comprises the first oil return section and the second oil return section, the described first oil return section is located at extending axially on the described main bearing and along main bearing, the described second oil return section is located on the described cylinder and along the radially extension of cylinder, the upper end of the described first oil return section is connected with described valve seat recess, the inner of the described second oil return section faces with the lower end of the described first oil return section and is communicated with, and the outer end of the described second oil return section is arranged on the outward edge of described cylinder.
5. rotary compressor as claimed in claim 2, it is characterized in that, described drainback passage comprises the first oil return section, the second oil return section and the 3rd oil return section, the described first oil return section is located at extending axially on the described main bearing and along main bearing, the described second oil return section is located at extending axially on the described cylinder and along cylinder, described the 3rd oil return section is located on the described supplementary bearing, the upper end of the described first oil return section is connected with the valve seat recess, the upper end of the described second oil return section faces with the lower end of the described first oil return section and is communicated with, one end of described the 3rd oil return section faces with the lower end of the described second oil return section and is communicated with, and the other end of described the 3rd oil return section is arranged on the outward edge or lower end surface of supplementary bearing.
6. rotary compressor as claimed in claim 1, it is characterized in that, the described compression pump housing comprises upper cylinder, lower cylinder, main bearing, supplementary bearing, bent axle, rolling piston and central diaphragm, described upper cylinder and lower cylinder are located at the upper and lower both sides of described central diaphragm respectively, described main bearing is located at the upper-end surface of described upper cylinder, described supplementary bearing is located at the lower end surface of lower cylinder, described rolling piston is arranged in described upper cylinder and the lower cylinder and rotates under the drive of described bent axle, and described valve seat recess is located on the described central diaphragm.
7. rotary compressor as claimed in claim 6, it is characterized in that, described drainback passage is located on the described central diaphragm and along the radially extension of central diaphragm, the inner of described drainback passage is connected with described valve seat recess, and the outer end of described drainback passage is arranged on the outward edge of described central diaphragm.
8. rotary compressor as claimed in claim 6, it is characterized in that, described drainback passage comprises the first oil return section and the second oil return section, the described first oil return section is located at extending axially on the described central diaphragm and along central diaphragm, the described second oil return section is located on the described lower cylinder and along the radially extension of lower cylinder, the upper end of the described first oil return section is connected with described valve seat recess, the inner of the described second oil return section faces with the lower end of the described first oil return section and is communicated with, and the outer end of the described second oil return section is arranged on the outward edge of described lower cylinder.
9. rotary compressor as claimed in claim 8 is characterized in that, the described second oil return section is opened in described lower cylinder on the upper surface of described central diaphragm.
10. rotary compressor as claimed in claim 6, it is characterized in that, described drainback passage comprises the first oil return section, the second oil return section and the 3rd oil return section, the described first oil return section is located at extending axially on the described central diaphragm and along central diaphragm, the described second oil return section is located at extending axially on the described lower cylinder and along lower cylinder, described the 3rd oil return section is located on the described supplementary bearing, the upper end of the described first oil return section is connected with described valve seat recess, the upper end of the described second oil return section faces with the lower end of the described first oil return section and is communicated with, one end of described the 3rd oil return section faces with the lower end of the described second oil return section and is communicated with, and the other end of described the 3rd oil return section is arranged on the outward edge or lower end surface of supplementary bearing.
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CN201310264867.3A CN103334931B (en) | 2013-06-27 | 2013-06-27 | Rotary compressor |
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CN201310264867.3A CN103334931B (en) | 2013-06-27 | 2013-06-27 | Rotary compressor |
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CN103334931B CN103334931B (en) | 2016-08-10 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107676268A (en) * | 2017-10-10 | 2018-02-09 | 珠海凌达压缩机有限公司 | Flange, the pump housing and compressor |
CN107893767A (en) * | 2017-11-09 | 2018-04-10 | 珠海凌达压缩机有限公司 | The lubricating system and compressor and air conditioner of compressor |
CN108386357A (en) * | 2018-04-18 | 2018-08-10 | 北京燕都碧城科技有限公司 | A kind of single screw compressor anti-liquid impact device |
CN111043038A (en) * | 2019-12-03 | 2020-04-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Silencer, compressor and air conditioner with same |
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CN102022337A (en) * | 2009-09-17 | 2011-04-20 | 广东美芝制冷设备有限公司 | Oil-feeding device of rotary compressor |
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JP2000097185A (en) * | 1998-09-22 | 2000-04-04 | Hitachi Ltd | Rotary compressor |
JP2002147375A (en) * | 2000-11-15 | 2002-05-22 | Daikin Ind Ltd | Rotary compressor |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107676268A (en) * | 2017-10-10 | 2018-02-09 | 珠海凌达压缩机有限公司 | Flange, the pump housing and compressor |
CN107893767A (en) * | 2017-11-09 | 2018-04-10 | 珠海凌达压缩机有限公司 | The lubricating system and compressor and air conditioner of compressor |
CN107893767B (en) * | 2017-11-09 | 2020-08-11 | 珠海凌达压缩机有限公司 | Lubricating system of compressor, compressor and air conditioner |
CN108386357A (en) * | 2018-04-18 | 2018-08-10 | 北京燕都碧城科技有限公司 | A kind of single screw compressor anti-liquid impact device |
CN108386357B (en) * | 2018-04-18 | 2024-05-28 | 北京燕都碧城科技有限公司 | Liquid impact preventing device of single screw compressor |
CN111043038A (en) * | 2019-12-03 | 2020-04-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Silencer, compressor and air conditioner with same |
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CN103334931B (en) | 2016-08-10 |
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