CN109185157A - A kind of muffler and compressor - Google Patents
A kind of muffler and compressor Download PDFInfo
- Publication number
- CN109185157A CN109185157A CN201811118201.6A CN201811118201A CN109185157A CN 109185157 A CN109185157 A CN 109185157A CN 201811118201 A CN201811118201 A CN 201811118201A CN 109185157 A CN109185157 A CN 109185157A
- Authority
- CN
- China
- Prior art keywords
- side wall
- circumferential side
- muffler
- hole
- bloop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000002093 peripheral effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000003584 silencer Effects 0.000 description 4
- 230000037361 pathway Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F04C29/06—Silencing
- F04C29/065—Noise dampening volumes, e.g. muffler chambers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention provides a kind of muffler and compressor, solves suppressor lumen and is also easy to produce the technical issues of vortex causes compressor efficiency to reduce, the technical solution of use includes: muffler ontology and at least two layers of circumferential side wall.Muffler ontology has cavity, and is provided with the through-hole of the bottom of cavity.Circumferential side wall successively along the bottom that circumferentially cavity is arranged in through-hole, is equipped with the bloop passed through suitable for air-flow in every layer of axial side wall.Airflow channel is formed between adjacent two layers circumferential side wall, neighboring gas flow path passes through the bloop being arranged in every layer of circumferential side wall and is connected to；Inlet chamber is formed between the circumferential side wall of separate through-hole and the inner sidewall of cavity, forms exhaust clearance between the circumferential side wall and object axis to be installed of through-hole.After noise reduction gas enters inlet chamber by the gas vent on object to be installed, after airflow channel, it is discharged by exhaust clearance.Increase exhaust buffer area, and multiple frequency noises of cancelling out each other in muffler of the present invention, achievees the purpose that reduce noise.
Description
Technical field
The present invention relates to noise reduction technical fields, and in particular to a kind of muffler and compressor.
Background technique
It is higher and higher to air conditioner noises requirement as people's living standard improves, and compressor is as power source, is main
Noise generating elements, reducing compressor noise becomes important directions, and muffler acts as critically important factor to compressor noise is reduced.
In rotary compressor, muffler is mounted in the reduction noise on the upper and lower flange exhaust passage of compressor
Device can stop the propagation of sound wave, and air-flow is allowed to pass through, and be the effective tool for controlling noise.Its noise reduction principle is using anti-
Property muffler reduce pressure fluctuation and noise level, be using the mutation of the area of section of pipeline on flow direction,
So that reflection or interference occur for air-flow, to reduce noise level.Common muffler is as shown in Figure 1, the muffler structure
In only a kind of noise reduction cavity, erasure effect is unobvious, and sound deadening capacity is limited.
China Patent Publication No. is that the patent of CN201710262487 discloses a kind of reduction rotary compressor noise
Structure.As shown in Fig. 2, frequency noise circle 7 is selected in setting between silencer 4 and base bearing 2, select between frequency noise circle 7 and base bearing 2
Gap is set, selects frequency noise circle 7 and is equipped with and select frequency noise reduction circle gas vent 8, gas via behind 4 inner cavity of silencer by selecting frequency noise reduction circle
Gas vent 8 and gap discharge.The shape of frequency noise reduction circle 7 is selected by adjusting noise and to select 8 position of frequency noise reduction circle gas vent, aperture big
Small, quantity, punching rate etc., which reach, passes through the selection of the frequency of noise purpose.But its exhaust line cooperatively formed with base bearing
Diameter easily generates vortex in suppressor lumen corner, causes exhaust resistance to increase, influence compressor performance.
Therefore, how to solve suppressor lumen and be also easy to produce the technical issues of vortex causes compressor efficiency to reduce, be ability
Field technique personnel problem urgently to be resolved.
Summary of the invention
Therefore, the invention solves suppressor lumens to be also easy to produce the technical issues of vortex causes compressor efficiency to reduce, from
And provide a kind of muffler and compressor.
For achieving the above object, the technical solution adopted by the present invention includes:
A kind of muffler, comprising: muffler ontology has cavity, and is provided with the bottom of the cavity, suitable for being arranged
Through-hole on object to be installed；The bottom of the cavity is successively circumferentially arranged at least two layers of circumferential side wall along the through-hole
On, airflow channel is formed between adjacent two layers circumferential side wall, the adjacent airflow channel is by being arranged in the circumferential side wall
Bloop connection；Inlet chamber is formed between the circumferential side wall of the separate through-hole and the inner sidewall of the cavity, close to described
Exhaust clearance is formed between the circumferential side wall of through-hole and object axis to be installed；To noise reduction gas by the gas vent on object to be installed
Into after the inlet chamber, after the airflow channel, it is discharged by the exhaust clearance.
Bloop in the adjacent circumferential side wall shifts to install.
The bloop circumferentially Sidewall Height direction length be circumferential side wall height 1/3~1/2.
Bloop in the adjacent circumferential side wall is evenly arranged within the scope of four quadrants in plane right-angle coordinate.
The shape of the bloop is round hole, square hole or irregularly-shaped hole.
The circumferential side wall is equipped with two layers.
Every layer of circumferential side wall is equipped with 2 bloops.
The circumferential side wall is circular ring shape side wall.
The muffler ontology is equipped with several secondary lobes, and the secondary lobe is set along the circumferential successively interval of the muffler ontology
It sets, the bloop in the circumferential side wall far from the through-hole is located at the secondary lobe.
A kind of compressor, including the pump housing further include above-mentioned muffler.
The object to be installed is the upper flange of the pump housing, and the object axis to be installed is the upper flange axis.
The pump housing includes single exhaust passage or more exhaust passages, and the list exhaust passage or more exhaust passages pass through upper
The gas vent being arranged on flange is connected to the inlet chamber.
Technical solution of the present invention has the advantages that
1. muffler provided by the invention, including muffler ontology and at least two layers of circumferential side wall.Muffler ontology has
Cavity, and be provided with cavity bottom suitable for the through-hole that is set on object to be installed.Circumferential side wall is successively along through-hole week
To on the bottom that cavity is set, the bloop passed through suitable for air-flow is equipped in every layer of axial side wall.Adjacent two layers peripheral side
Airflow channel is formed between wall, neighboring gas flow path passes through the bloop being arranged in every layer of circumferential side wall and is connected to；Far from through-hole
Circumferential side wall and cavity inner sidewall between form inlet chamber, close to through-hole circumferential side wall and object axis to be installed between shape
At exhaust clearance.
After noise reduction gas enters inlet chamber by the gas vent on object to be installed, after airflow channel, between being vented
Gap discharge.The present invention is to solve the problems, such as compressor noise, on the basis of former muffler structure, increases by least two annular, peripheral sides
Wall increases newly and forms at least one airflow channel between annular, peripheral side wall, and neighboring gas flow path, which passes through, is located at disappearing for circumferential side wall
Sound hole intersects connection.When noise reduction gas exhaust, shape between the recessed inner sidewall of the circumferential side wall far from through-hole is initially entered
At inlet chamber, airflow channel is then entered by bloop, then by close to through-hole circumferential side wall and object axis to be installed it
Between the exhaust clearance exhaust silencer sheet that is formed it is external.Successively pass through inlet chamber, airflow channel and exhaust clearance to noise reduction gas
During, the pneumatic noise of corresponding frequencies, which is overlapped mutually, cancels out each other, and reduces noise；The setting of airflow channel is so that row simultaneously
Gas motion path shortens, and vortex phenomenon reduces, and exhaust resistance reduces, so that compressor efficiency gets a promotion.
2. muffler provided by the invention, the bloop on adjacent circumferential side wall is evenly arranged on four in plane right-angle coordinate
Within the scope of a quadrant, so that air-flow buffer effect is more preferable, vortex phenomenon can be more effectively reduced, promotes compressor performance.
3. muffler provided by the invention, the length in bloop circumferentially Sidewall Height direction is 2 height of circumferential side wall
1/3~1/2.The reason of limiting noise reduction pore size is that bloop is too big, flows smoothly, and airflow noise is leading, cannot play noise reduction
Effect；Bloop is too small, and circulation has some setbacks, and vortex is obvious, influences compressor performance.
4. muffler provided by the invention, muffler ontology is equipped with several secondary lobes in the present invention, and secondary lobe is along muffler
The circumferential successively interval of ontology is arranged, and the bloop in the circumferential side wall far from through-hole is located at secondary lobe.Outermost circumferential side wall
On bloop be arranged at secondary lobe so that exhaust pathway further decreases, exhaust resistance is small, enhance compressor efficiency.
In conclusion increasing exhaust buffer area in muffler of the present invention, and multiple frequency noises of cancelling out each other, reach reduction
The purpose of noise, while when the operation of path, exhaust pathway is shortened, exhaust vortex is reduced, promotes compressor efficiency.It is particularly applicable in
When on compressor product, 836.7W is reduced to by 851W using the compressor horsepower of muffler structure of the present invention, efficiency is by 2.94
3.01 are promoted to, efficiency promotes 2.3%, and monomer noise mean value total value is down to 61.9dB by 62.6dB.
Invention is described in detail with reference to the accompanying drawing.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the first conventional muffler structure schematic diagram in the prior art；
Fig. 2 is second of muffler structure schematic diagram in the prior art；
Fig. 3 is muffler schematic perspective view in the embodiment of the present invention 1；
Fig. 4 is muffler front view in the embodiment of the present invention 1；
Fig. 5 is sectional view along A-A in Fig. 4；
Fig. 6 is gas flow schematic diagram in suppressor lumen in the embodiment of the present invention 1；
Fig. 7 is gas flow schematic diagram in suppressor lumen in the embodiment of the present invention 2；
Description of symbols:
1- muffler ontology；11- secondary lobe；2- circumferential side wall；21- bloop；3- upper flange；31- gas vent；Figure
Position indicates the position of object axis to be installed between two dotted lines in 5.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
The present invention provides a kind of compressor, including the pump housing, further includes muffler as seen in figures 3-6.In the present invention to
Mounting object is the upper flange 3 of the pump housing, and object axis to be installed is upper flange axis.
As in Figure 3-5, the muffler in the present invention, comprising: muffler ontology 1 and at least two layers of circumferential side wall 2.Disappear
Sound device ontology 1 has cavity, and be provided with cavity bottom suitable for the through-hole that is set on object to be installed.Circumferential side wall
2 successively along the bottom that circumferentially cavity is arranged in through-hole, is equipped with the bloop passed through suitable for air-flow in every layer of axial side wall 2
21.Airflow channel is formed between adjacent two layers circumferential side wall 2, neighboring gas flow path is by being arranged in every layer of circumferential side wall 2
Bloop 21 is connected to；Inlet chamber is formed between circumferential side wall 2 and the inner sidewall of cavity far from through-hole, close to the peripheral side of through-hole
Exhaust clearance is formed between wall 2 and object axis to be installed.
After noise reduction gas enters inlet chamber by the gas vent on object to be installed, after airflow channel, between being vented
Gap discharge.
The present invention is to solve the problems, such as compressor noise, on the basis of former muffler structure as shown in Figure 1, increases at least two
A annular, peripheral side wall 2 increases newly and forms at least one airflow channel between annular, peripheral side wall 2, and neighboring gas flow path passes through position
It intersects connection in the bloop 21 in circumferential side wall 2.When noise reduction gas exhaust, the peripheral side far from through-hole is initially entered
Then the inlet chamber formed between wall 2 and the inner sidewall of cavity enters airflow channel by bloop 21, then by close to through-hole
Outside the exhaust clearance exhaust silencer ontology 1 formed between circumferential side wall 2 and object axis to be installed.Successively pass through to noise reduction gas
During inlet chamber, airflow channel and exhaust clearance, the pneumatic noise of corresponding frequencies, which is overlapped mutually, cancels out each other, and reduction is made an uproar
Sound；The setting of airflow channel is so that exhaust motion path shortens simultaneously, and vortex phenomenon reduces, and exhaust resistance reduces, so that compression
Function effect gets a promotion.
Middle pump body of the present invention includes single exhaust passage, as shown in fig. 6, single exhaust passage passes through the exhaust being arranged on upper flange
Hole 31 is connected to inlet chamber.
Specifically, as shown in Figure 3 and Figure 4, the present invention in circumferential side wall 2 can be equipped with two layers, can also be equipped with two layers with
On.Circumferential side wall 2 is preferably set as two layers by the present embodiment.An airflow channel is formed between two layers of circumferential side wall 2, such as Fig. 6 institute
Show, the gas in inlet chamber is entered by the gas vent 31 on upper flange, entering by the bloop 21 in outer layer circumferential side wall 2 should
After airflow channel, then is entered by the bloop 21 in internal layer circumferential side wall 2 and to be formed between upper flange axis and internal layer circumferential side wall 2
Exhaust clearance discharge.
Further, as shown in Figure 3 and Figure 4, the bloop 21 on adjacent circumferential side wall 2 shifts to install, the dislocation
Refer to and be not overlapped completely, and the bloop 21 on adjacent circumferential side wall 2 is circumferentially uniformly interspersed.Specifically, in the present invention,
There can be 2 or more bloops 21 in every layer of circumferential side wall 2 with this, the present invention preferentially selects every layer of circumferential side wall 2 to be equipped with 2
A bloop 21.And the bloop 21 on adjacent circumferential side wall 2 is evenly arranged within the scope of four quadrants in plane right-angle coordinate,
So that air-flow buffer effect is more preferable, vortex phenomenon can be more effectively reduced, promotes compressor performance.
In addition, in the present invention, as shown in figure 4, circumferential side wall 2 is circular ring shape side wall.Circular ring shape side wall can be with noise reduction
Device ontology 1 is integrally formed, or welding or insertion connection etc..The shape of bloop 21 can be round hole, square hole
Or irregularly-shaped hole, the present invention in preferentially select bloop 21 be round hole.
In the present invention, as shown in figure 5, the length of circumferentially 2 short transverse of side wall of bloop 21 is circumferential side wall 2 height
1/3~1/2.The reason of limiting 21 size of bloop is that bloop 21 is too big, flows smoothly, and airflow noise is leading, cannot play
Noise reduction effect；Bloop 21 is too small, and circulation has some setbacks, and vortex is obvious, influences compressor performance.
In addition, muffler ontology 1 is equipped with several secondary lobes 11 in the present invention, as shown in figure 4, secondary lobe 11 is along muffler sheet
The circumferential successively interval of body 1 is arranged, and the bloop 21 in the circumferential side wall 2 far from through-hole is located at secondary lobe 11.Outermost circumferential direction
Bloop 21 on side wall 2 is arranged at secondary lobe 11, so that exhaust pathway further decreases, exhaust resistance is small, enhances compressor
Efficiency.
Embodiment 2
It is as shown in fig. 7, the present invention is different from embodiment 1, the pump housing includes more exhaust passages, and more exhaust passages pass through
The gas vent 31 being arranged on upper flange is connected to inlet chamber.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (12)
1. a kind of muffler characterized by comprising
Muffler ontology (1) has cavity, and is provided with the bottom of the cavity, suitable for being set on object to be installed
Through-hole；
At least two layers of circumferential side wall (2), successively along the bottom that the cavity is circumferentially arranged in the through-hole, adjacent two layers are circumferential
Airflow channel, bloop of the adjacent airflow channel by setting on the circumferential side wall (2) are formed between side wall (2)
(21) it is connected to；
Inlet chamber is formed between circumferential side wall (2) and the inner sidewall of the cavity far from the through-hole, close to the through-hole
Exhaust clearance is formed between circumferential side wall (2) and object axis to be installed；To noise reduction gas by the gas vent on object to be installed into
After entering the inlet chamber, after the airflow channel, it is discharged by the exhaust clearance.
2. muffler according to claim 1, which is characterized in that the bloop (21) on the adjacent circumferential side wall (2)
It shifts to install.
3. muffler according to claim 1, which is characterized in that the bloop (21) circumferentially Sidewall Height direction
Length is the 1/3~1/2 of circumferential side wall height.
4. muffler according to claim 2, which is characterized in that the bloop (21) on the adjacent circumferential side wall (2)
It is evenly arranged within the scope of four quadrants in plane right-angle coordinate.
5. muffler according to any one of claims 1 to 4, which is characterized in that the shape of the bloop (21) is circle
Shape hole, square hole or irregularly-shaped hole.
6. described in any item mufflers according to claim 1~5, which is characterized in that the circumferential side wall (2) is equipped with two layers.
7. described in any item mufflers according to claim 1~6, which is characterized in that every layer of circumferential side wall (2) is equipped with
2 bloops (21).
8. described in any item mufflers according to claim 1~7, which is characterized in that the circumferential side wall (2) is circular ring shape
Side wall.
9. described in any item mufflers according to claim 1~8, which is characterized in that the muffler ontology (1) is if be equipped with
Dry secondary lobe (11), the secondary lobe (11) is along the circumferential successively interval setting of the muffler ontology (1), the week far from the through-hole
Bloop (21) on side wall (2) is located at the secondary lobe (11).
10. a kind of compressor, including the pump housing, which is characterized in that further include such as the described in any item mufflers of claim 1-9.
11. compressor according to claim 10, which is characterized in that the object to be installed is the upper flange of the pump housing
(3), the object axis to be installed is the upper flange axis.
12. compressor according to claim 11, which is characterized in that the pump housing includes that single exhaust passage or multiple rows of gas are logical
Road, the list exhaust passage or more exhaust passages pass through the gas vent (31) being arranged on upper flange and are connected to the inlet chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118201.6A CN109185157A (en) | 2018-09-25 | 2018-09-25 | A kind of muffler and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811118201.6A CN109185157A (en) | 2018-09-25 | 2018-09-25 | A kind of muffler and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109185157A true CN109185157A (en) | 2019-01-11 |
Family
ID=64909690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811118201.6A Pending CN109185157A (en) | 2018-09-25 | 2018-09-25 | A kind of muffler and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109185157A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080984A (en) * | 2019-06-11 | 2019-08-02 | 黄石东贝电器股份有限公司 | A kind of noise reducing type cylinder head of rotor-type compressor |
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| CN2822745Y (en) * | 2005-07-11 | 2006-10-04 | 福建省泉州市力达机械有限公司 | Air sucking silencing type air filtering device |
| KR20090097041A (en) * | 2008-03-10 | 2009-09-15 | 엘지전자 주식회사 | Device for protecting oil discharge of hermetic compressor |
| CN203394766U (en) * | 2013-08-07 | 2014-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Muffling component of compressor and compressor with muffling component |
| JP2014145261A (en) * | 2013-01-28 | 2014-08-14 | Mitsubishi Electric Corp | Discharge muffler structure and rotary compressor |
| CN104454448A (en) * | 2014-11-19 | 2015-03-25 | 广东美芝制冷设备有限公司 | Compressor |
| JP2015197056A (en) * | 2014-03-31 | 2015-11-09 | ダイキン工業株式会社 | compressor |
| CN206668560U (en) * | 2017-03-06 | 2017-11-24 | 珠海凌达压缩机有限公司 | Muffler and compressor |
| CN209067486U (en) * | 2018-09-25 | 2019-07-05 | 珠海凌达压缩机有限公司 | A kind of muffler and compressor |
-
2018
- 2018-09-25 CN CN201811118201.6A patent/CN109185157A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003003980A (en) * | 2001-06-20 | 2003-01-08 | Toshiba Kyaria Kk | Rotary compressor |
| CN2822745Y (en) * | 2005-07-11 | 2006-10-04 | 福建省泉州市力达机械有限公司 | Air sucking silencing type air filtering device |
| KR20090097041A (en) * | 2008-03-10 | 2009-09-15 | 엘지전자 주식회사 | Device for protecting oil discharge of hermetic compressor |
| JP2014145261A (en) * | 2013-01-28 | 2014-08-14 | Mitsubishi Electric Corp | Discharge muffler structure and rotary compressor |
| CN203394766U (en) * | 2013-08-07 | 2014-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Muffling component of compressor and compressor with muffling component |
| JP2015197056A (en) * | 2014-03-31 | 2015-11-09 | ダイキン工業株式会社 | compressor |
| CN104454448A (en) * | 2014-11-19 | 2015-03-25 | 广东美芝制冷设备有限公司 | Compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080984A (en) * | 2019-06-11 | 2019-08-02 | 黄石东贝电器股份有限公司 | A kind of noise reducing type cylinder head of rotor-type compressor |
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