CN107795461A - The exhaust structure and compressor of compressor - Google Patents
The exhaust structure and compressor of compressor Download PDFInfo
- Publication number
- CN107795461A CN107795461A CN201710985452.3A CN201710985452A CN107795461A CN 107795461 A CN107795461 A CN 107795461A CN 201710985452 A CN201710985452 A CN 201710985452A CN 107795461 A CN107795461 A CN 107795461A
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- China
- Prior art keywords
- passage
- channel
- exhaust
- valve head
- face
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/123—Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/08—Actuation of distribution members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1013—Adaptations or arrangements of distribution members the members being of the poppet valve type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The present invention provides a kind of exhaust structure and compressor of compressor, and compressor includes：Cylinder body with inner chamber, cylinder body both ends are first end face and second end face, and the exhaust passage the gas in cylinder body to be discharged is provided with intracavity sidewall, and exhaust passage has the first distance with first end face, and second distance being present with second end face, the first distance and second distance are all higher than zero.The present invention reduces the length of motion path of the gas in cylinder body, reduces mechanical loss, and then improve the efficiency of compressor and reduce cost in compressor air-discharging.
Description
Technical field
The present invention relates to family's electro-technical field, the exhaust structure and compressor of more particularly to a kind of compressor.
Background technology
With the continuous progress of science and technology and the increasingly raising of productivity living standard.It is daily that air-conditioning has become people
In life, one of most important household electrical appliance.
And compressor is widely used within air-conditioning systems as important refrigeration plant, the appearance of compressor casing
Product is to weigh the important indicator of compressor refrigerating capacity, therefore to ensure the refrigerating capacity of compressor, in the situation that diameter of cylinder is constant
Under, cylinder body needs enough length in axis direction, to ensure that cylinder body has enough volumes.
The exhaust structure of existing compressor, be utilized on upper flange and exhaust passage be set, and compressor casing with
Upper flange connection one end set can breach corresponding with the exhaust passage, by cylinder body compressed gas discharge, so
It is longer to there is the path that gas moves in the axial direction in compressor operation middle cylinder body, such as the gas close to lower flange position
Close to the axial length of cylinder body, there is larger mechanical loss in the length of the motion path of body, have impact on the efficiency of compressor,
And increase operating cost.
The content of the invention
It is a primary object of the present invention to provide the exhaust structure and compressor of a kind of compressor, its can exhaust when,
Reduce the length of motion path of the gas in cylinder body, reduce mechanical loss, and then improve the efficiency of compressor and reduction
Cost.
The invention provides a kind of exhaust structure of compressor, the compressor includes：Cylinder body with inner chamber, the cylinder
Body both ends are first end face and second end face, are provided with to discharge the gas in the cylinder body on the intracavity sidewall
Exhaust passage, there is the first distance in the exhaust passage, and second distance be present with the second end face with the first end face,
First distance and the second distance are all higher than zero.
Valve component is provided with the exhaust passage, the exhaust passage to be opened or closed.
More preferably, the diameter parallel of the exhaust passage is in the first end face and the second end face, and the row
The axis of gas passage is equal with the distance of the first end face and the second end face.
More preferably, in addition to muffler；
The muffler is connected with the exhaust passage, the gas in the cylinder body is passed through again after flowing through the exhaust passage
The muffler discharge.
More preferably, valve component is provided with the exhaust passage, the exhaust passage to be opened or closed.
More preferably, the exhaust passage includes interconnected first passage and second channel, and the first passage is located at
Between the second channel and the inner chamber；
The cross sectional shape of the first passage and the second channel is circle, and the diameter of the first passage is small
In the diameter of the second channel, make to form step surface therebetween；
The valve component includes the valve head being arranged in the second channel, and the valve head can abut the step
Changed between the first position in face and the second place of the remote step surface, to close or open the first passage.
More preferably, the valve component also includes elastomeric element, the both ends of the elastomeric element respectively with the valve head and
The inwall connection of the second channel, to drive the valve head to be moved towards the step surface by its own resilient.
More preferably, the elastomeric element is helical spring.
More preferably, the valve component also includes housing, and the housing is the cylinder that both ends are respectively blind end and open end
Shape body；
The housing is fixedly connected within the second channel, and is connected to the step surface by the blind end
On, corresponding the first passage in port with the second channel at the step surface is provided with the blind end；
The elastomeric element and the valve head are arranged within the housing, and the elastomeric element is connected to the housing
On, to drive the valve head to be connected on the blind end, and first passage is covered, it is logical to close described first
Road.
More preferably, the projection towards openend center position extension, the elastic portion are provided with the openend
The both ends of part are connected on described raised and described valve head respectively.
More preferably, the housing is cylinder, and is interference fit between the second channel.
More preferably, the valve component also includes the stop member being fixedly connected in the second channel, the elasticity
The both ends of part are connected on stop member and the valve head respectively, to drive the valve head to be connected on the step surface,
And port of the first passage at the step surface is covered, to close the first passage.
More preferably, the stop member is cylinder, and is interference fit between the second channel, in the stop
The second passage extended along axis is provided with part, can be logical by described second into the gas in the second channel
Stomata is discharged.
More preferably, the valve head is the cylinder that diameter matches with the second channel, and in the side of the valve head
The exhaust groove extended in the axial direction is provided with surface, the valve head is passed through the exhaust groove and described second
The inwall of passage forms gas channel, and when the valve head departs from the step surface, the gas in the first passage can lead to
Cross the gas channel discharge.
Another aspect of the invention provides a kind of compressor, includes the exhaust structure of the compressor of any of the above technical characteristic.
The exhaust structure of the compressor of the offer of the present invention, have first using the exhaust passage and the first end face
Distance, and second distance be present with the second end face, first distance and the second distance are all higher than zero technical side
Case, the length of motion path of the gas in cylinder body in compressor air-discharging, can be reduced, reduce mechanical loss, Jin Erti
The high efficiency of compressor simultaneously reduces cost.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the present invention, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the example structure schematic diagram of exhaust structure one of compressor provided by the invention；
Fig. 2 is the schematic diagram of the exhaust passage in Fig. 1；
Fig. 3 is the valve component first way installment state schematic diagram in Fig. 1；
Fig. 4 is the body diagram in Fig. 3；
Fig. 5 is Fig. 4 rotation schematic diagram；
Fig. 6 is the valve component second way installment state schematic diagram in Fig. 1；
Fig. 7 is the stop member schematic diagram in Fig. 6；
Fig. 8 is the valve head schematic diagram in Fig. 6；
In figure：1st, cylinder body；11st, first end face；12nd, second end face；13rd, exhaust passage；14th, first passage；15th, second is logical
Road；16th, inner chamber；17th, step surface；2nd, valve component；21st, valve head；211st, exhaust groove；22nd, elastomeric element；23rd, housing；24、
Blind end；241st, the first passage；25th, openend；251st, it is raised；26th, stop member；261st, the second passage.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the present invention one
Section Example, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out under the premise of creative work the every other embodiment obtained, belong to the scope of protection of the invention.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.
As shown in figure 1, a kind of exhaust structure of compressor, compressor include：Cylinder body 1 with inner chamber 16, the both ends of cylinder body 1
For first end face 11 and second end face 12, upper flange is connected with first end face 11 in actual use, is connected in second end face 12
Lower flange is connected to, the exhaust passage 13 gas in cylinder body 1 to be discharged, exhaust passage 13 are provided with the side wall of inner chamber 16
The first distance be present with first end face 11, and second distance be present with second end face 12, the first distance and second distance are all higher than
Zero, valve component 2 is provided with exhaust passage 13, exhaust passage 13 to be opened or closed.Using such technical side
Case can reduce and be located remotely from the motion path of gas that the position of exhaust passage 13 goes out to exhaust passage 13 relative to prior art
Length, reduce mechanical loss, and then improve the efficiency of compressor and reduce cost.
Specifically, the diameter parallel of exhaust passage 13 is in first end face 11 and second end face 12, and exhaust passage 13
Axis is equal with the distance of first end face 11 and second end face 12.So it is located in the axis direction along cylinder body 1, exhaust passage 13
The center of the side wall of inner chamber 16, the length close to the motion path of the gas of upper flange and lower flange position are only the axle of cylinder body
To the half of length.
Further, in addition to muffler (not shown), muffler are connected with exhaust passage 13, make the gas in cylinder body 1
Body is discharged through muffler again after flowing through exhaust passage 13.The exhaust noise of compressor can be so reduced, wherein muffler is not
It is the inventive point of the present invention, but a kind of prior art, the present invention are not intended to make improvements, therefore herein to muffler
Structure and principle of noise reduction be no longer described in detail.
As a kind of embodiment, as shown in Fig. 2 exhaust passage 13 includes interconnected first passage 14 and second
Passage 15, first passage 14 is between second channel 15 and inner chamber 16, the cross sectional shape of first passage 14 and second channel 15
It is circle, and the diameter of first passage 14 is less than the diameter of second channel 15, makes to form step surface 17 therebetween.Need
What is illustrated is that the axis of first passage 14 can overlap with the axis of second channel 15.
As shown in Figure 3 and Figure 6, valve component 2 includes being arranged on valve head 21 in second channel 15, valve head 21 can to
Connect and changed between the first position of step surface 17 and the second place away from step surface 17, to close or open first passage
14.Further, as shown in FIG., valve component 2 also includes elastomeric element 22, and elastomeric element 22 can be helical spring, but
It is not limited to that.Inwall of the both ends of elastomeric element 22 respectively with valve head 21 and second channel 15 is connected, to pass through itself
Elastic force driving valve head 21 moves towards step surface 17.When the pressure in inner chamber 16 is more than the elastic force of elastomeric element 22, valve head 21
Away from step surface 17, now first passage 14 is opened, and compressor is in exhaust condition, when the pressure in inner chamber 16 is less than elastic portion
During the elastic force of part 22, valve head 21 is connected on step surface 17, and now first passage 14 is closed, and compressor is in air-breathing or compression shape
State.
Valve component 2 can have a variety of setting forms as the important component in the exhaust structure of the compressor of the present invention,
Two kinds of optional embodiments during below to valve component 2 including being designed based on valve head 21 and elastomeric element 22 carry out detailed
Introduce：
First way
As shown in Fig. 3,4,5, valve component 2 also includes housing 23, and housing 23 is that both ends are respectively blind end 24 and opening
The cylindrical body at end 25；Housing 23 is fixedly connected within second channel 15, and is connected to by blind end 24 on step surface 17,
Corresponding the first passage 241 in port with second channel 15 at step surface 17 is provided with blind end 24；Elastomeric element
22 and valve head 21 be arranged within housing 23, elastomeric element 22 is connected on housing 23, to drive valve head 21 to be connected to envelope
On closed end 24, and the first passage 241 is covered, to close first passage 14.Using such technical scheme, not only make valve body group
The installation of part 2 is simpler, and also reduces cost of manufacture.
Specifically, when the section of second channel 15 is circular, housing 23 is cylinder, and between second channel 15
For interference fit, housing 23 is fixedly mounted in second channel 15 with realizing.
Further, as shown in Figure 4,5, the projection towards the extension of the center position of openend 25 is provided with openend 25
251, the both ends of elastomeric element 22 are connected on projection 251 and valve head 21 respectively.The quantity of its protrusions 251 can be two with
On, and uniformly arranged on openend 25.Again in specific making, projection 251 can be molded with the integral production of housing 23.
The second way
As shown in fig. 6, valve component 2 also includes the stop member 26 being fixedly connected in second channel 15, elastomeric element
22 both ends are connected on stop member 26 and valve head 21 respectively, to drive valve head 21 to be connected on step surface 17, and are covered
Port of the first passage 14 at step surface 17, to close first passage 14.Using such technical scheme, not only make valve body group
The installation of part 2 is simpler, and also reduces cost of manufacture.
Specifically, as shown in Figure 6,7, stop member 26 is cylinder, and is interference fit between second channel 15,
The second passage 261 extended along axis is provided with stop member 26, can be by the into the gas in second channel 15
Two passages 261 are discharged.Wherein stop member 26 can use copper pipe to be fabricated to one section of cylindrical body closed of one end open, and will
Second passage 261 is arranged on blind end, so that the making of stop member 26 is simpler.It should be noted that second channel 15
Can be that the section that two sections of different passages of diameter are collectively forming is the passage of step, stop member 26 is arranged on and is relatively large in diameter
People having a common goal in.
Specifically, as shown in figure 8, valve head 21 is the cylinder that diameter matches with second channel 15, and in valve head 21
Side surface on be provided with the exhaust groove 211 extended in the axial direction, valve head 21 is passed through exhaust groove 211 and second
The inwall of passage 15 forms gas channel, and when valve head 21 departs from step surface 17, the gas in first passage 14 can pass through gas
Circulation road is discharged.Wherein the quantity of exhaust groove 211 can be two or more, and uniformly be arranged in the axis of valve head 21, to
A plurality of gas channel is formed with the inwall of second channel 15, to meet exhaust demand.
Another aspect of the invention provides a kind of compressor, includes the superstructure of the compressor described by above example.
Above example is enabled the invention in compressor air-discharging, reduces the length of motion path of the gas in cylinder body
Degree, reduces mechanical loss, and then improve the efficiency of compressor and reduce cost.
Embodiments of the invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included within scope of the presently claimed invention.
Claims (14)
1. a kind of exhaust structure of compressor, the compressor include：Cylinder body (1) with inner chamber (16), the cylinder body (1) two
Hold as first end face (11) and second end face (12), it is characterised in that：
The exhaust passage (13) the gas in the cylinder body (1) to be discharged, institute are provided with the inner chamber (16) side wall
State exhaust passage (13) and the first end face (11) and the first distance be present, and with the second end face (12) exist second away from
From first distance and the second distance are all higher than zero.
2. exhaust structure according to claim 1, it is characterised in that：
The diameter parallel of the exhaust passage (13) is in the first end face (11) and the second end face (12), and the row
The axis of gas passage (13) is equal with the distance of the first end face (11) and the second end face (12).
3. exhaust structure according to claim 1, it is characterised in that：
Also include muffler；
The muffler is connected with the exhaust passage (13), the gas in the cylinder body (1) is flowed through the exhaust passage
(13) discharged again through the muffler after.
4. according to the exhaust structure described in claims 1 to 3 any one, it is characterised in that：
Valve component (2) is provided with the exhaust passage (13), the exhaust passage (13) to be opened or closed.
5. exhaust structure according to claim 4, it is characterised in that：
The exhaust passage (13) includes interconnected first passage (14) and second channel (15), the first passage (14)
Between the second channel (15) and the inner chamber (16)；
The cross sectional shape of the first passage (14) and the second channel (15) is circle, and the first passage (14)
Diameter be less than the second channel (15) diameter, make to form step surface (17) therebetween；
The valve component (2) includes being arranged on valve head (21) in the second channel (15), and the valve head (21) can be
Abut and changed between the first position of the step surface (17) and the second place away from the step surface (17), closing or
Open the first passage (14).
6. exhaust structure according to claim 5, it is characterised in that：
The valve component (2) also includes elastomeric element (22), the both ends of the elastomeric element (22) respectively with the valve head
(21) inwall with the second channel (15) connects, to drive the valve head (21) towards the step by its own resilient
Move in face (17).
7. exhaust structure according to claim 6, it is characterised in that：
The elastomeric element (22) is helical spring.
8. exhaust structure according to claim 6, it is characterised in that：
The valve component (2) also includes housing (23), and the housing (23) is that both ends are respectively blind end (24) and openend
(25) cylindrical body；
The housing (23) is fixedly connected within the second channel (15), and is connected to by the blind end (24) described
On step surface (17), it is provided with the blind end (24) with the second channel (15) at the end at the step surface (17) place
Corresponding the first passage (241) of mouth；
The elastomeric element (22) and the valve head (21) are arranged within the housing (23), and the elastomeric element (22) is even
It is connected on the housing (23), to drive the valve head (21) to be connected on the blind end (24), and covers described first
Passage (241), to close the first passage (14).
9. exhaust structure according to claim 8, it is characterised in that：
The projection (251) towards the extension of the openend (25) center position, the elasticity are provided with the openend (25)
The both ends of part (22) are connected on raised (251) and the valve head (21) respectively.
10. exhaust structure according to claim 8, it is characterised in that：
The housing (23) is cylinder, and is interference fit between the second channel (15).
11. exhaust structure according to claim 6, it is characterised in that：
The valve component (2) also includes the stop member (26) being fixedly connected in the second channel (15), the elasticity
The both ends of part (22) are connected on stop member (26) and the valve head (21) respectively, to drive the valve head (21) to abut
On the step surface (17), and the first passage (14) is covered in the port at the step surface (17) place, with described in closing
First passage (14).
12. exhaust structure according to claim 11, it is characterised in that：
The stop member (26) is cylinder, and is interference fit between the second channel (15), in the stop part
The second passage (261) extended along axis is provided with part (26), can be led into the gas in the second channel (15)
Cross the second passage (261) discharge.
13. exhaust structure according to claim 11, it is characterised in that：
The valve head (21) is the cylinder that diameter matches with the second channel (15), and in the side of the valve head (21)
The exhaust groove (211) extended in the axial direction is provided with surface, makes the valve head (21) can be by the exhaust groove
(211) inwall with the second channel (14) forms gas channel, when the valve head (21) departs from step surface (17),
Gas in the first passage (14) can be discharged by the gas channel.
A kind of 14. compressor, it is characterised in that：
Include the exhaust structure of the compressor described in claim 1 to 13 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985452.3A CN107795461A (en) | 2017-10-20 | 2017-10-20 | The exhaust structure and compressor of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710985452.3A CN107795461A (en) | 2017-10-20 | 2017-10-20 | The exhaust structure and compressor of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107795461A true CN107795461A (en) | 2018-03-13 |
Family
ID=61534216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710985452.3A Pending CN107795461A (en) | 2017-10-20 | 2017-10-20 | The exhaust structure and compressor of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107795461A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287962A (en) * | 2018-12-07 | 2020-06-16 | Lg电子株式会社 | Rotary compressor |
| CN112112784A (en) * | 2019-06-20 | 2020-12-22 | 周文三 | Cylinder air outlet structure of air compressor |
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|---|---|---|---|---|
| JPH10252676A (en) * | 1997-03-10 | 1998-09-22 | Seiko Seiki Co Ltd | Cylinder for gas compressor, and gas compressor |
| CN1380945A (en) * | 2000-05-29 | 2002-11-20 | Lg电子株式会社 | Discharge valve apparatus for reciprocating compressor |
| CN101210561A (en) * | 2006-12-30 | 2008-07-02 | 乐金电子(天津)电器有限公司 | Dual-rotor rotary compressor |
| CN201461406U (en) * | 2009-08-17 | 2010-05-12 | 长春科恒汽车空调制造有限公司 | Rolling compression ring type refrigeration compressor |
| CN102135099A (en) * | 2010-01-25 | 2011-07-27 | 上海日立电器有限公司 | Radial exhaust structure for rotor compressor |
| CN207437303U (en) * | 2017-10-20 | 2018-06-01 | 珠海凌达压缩机有限公司 | The exhaust structure and compressor of compressor |
-
2017
- 2017-10-20 CN CN201710985452.3A patent/CN107795461A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10252676A (en) * | 1997-03-10 | 1998-09-22 | Seiko Seiki Co Ltd | Cylinder for gas compressor, and gas compressor |
| CN1380945A (en) * | 2000-05-29 | 2002-11-20 | Lg电子株式会社 | Discharge valve apparatus for reciprocating compressor |
| CN101210561A (en) * | 2006-12-30 | 2008-07-02 | 乐金电子(天津)电器有限公司 | Dual-rotor rotary compressor |
| CN201461406U (en) * | 2009-08-17 | 2010-05-12 | 长春科恒汽车空调制造有限公司 | Rolling compression ring type refrigeration compressor |
| CN102135099A (en) * | 2010-01-25 | 2011-07-27 | 上海日立电器有限公司 | Radial exhaust structure for rotor compressor |
| CN207437303U (en) * | 2017-10-20 | 2018-06-01 | 珠海凌达压缩机有限公司 | The exhaust structure and compressor of compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111287962A (en) * | 2018-12-07 | 2020-06-16 | Lg电子株式会社 | Rotary compressor |
| CN112112784A (en) * | 2019-06-20 | 2020-12-22 | 周文三 | Cylinder air outlet structure of air compressor |
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Application publication date: 20180313 |
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