CN208595065U - A kind of pressure texture and compressor - Google Patents
A kind of pressure texture and compressor Download PDFInfo
- Publication number
- CN208595065U CN208595065U CN201821217069.XU CN201821217069U CN208595065U CN 208595065 U CN208595065 U CN 208595065U CN 201821217069 U CN201821217069 U CN 201821217069U CN 208595065 U CN208595065 U CN 208595065U
- Authority
- CN
- China
- Prior art keywords
- slide plate
- crankshaft
- roller
- compressor
- guiding mechanism
- 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.)
- Active
Links
Landscapes
- Compressor (AREA)
Abstract
The application provides a kind of pressure texture and compressor, belongs to Compressor Technology field.The pressure texture includes pump assembly, including cylinder, crankshaft, roller and slide plate, wherein the crankshaft includes crankshaft longitudinal end and crankshaft short axle end, and the slide plate includes slide plate top and slide plate stern notch；Guiding mechanism, it is set between crankshaft short axle end and the slide plate stern notch, when the crank rotation is to drive the roller to rotate, the guiding mechanism drives the vane motion with the rotation of the crankshaft, so that abutting at the top of the slide plate with roller holding, the cavity space of the cylinder is separated into low-pressure area and higher-pressure region.Due to increasing the guiding mechanism being set between crankshaft short axle end and slide plate stern notch, it is possible to reduce the noise of compressor improves the reliability of compressor.
Description
Technical field
This application involves Compressor Technology field more particularly to a kind of pressure textures and compressor.
Background technique
Compressor is the heart of refrigeration equipment, and compressor mainly includes shell, cylinder, crankshaft, roller, slide plate, flange group
The components such as part, cylinder compresses to intermittence the refrigerant gas of sucking under the action of crankshaft and roller, so that cylinder interior
Air pressure increases, can be by the refrigerant gas of high temperature and pressure by the gas vent in flange assembly after air pressure reaches a certain level
Discharge, to provide power for refrigeration cycle.
Usually spring is arranged in the slide plate stern notch of slide plate to guarantee contact of the slide plate with roller in existing rotary compressor
Power, it is ensured that slide plate is with roller contact so that pump body compression chamber can effectively be compressed, but the elastic characteristic of spring causes to compress
Machine is when low frequency operates, it may appear that slide plate and roller incomplete contact between and the noise problems such as slide plate sound for generating influence compressor
And the sound quality experience of air-conditioning.Meanwhile slide plate is detached from for a long time with roller and will cause roller and dally in the cavity of cylinder, can add in this way
The abrasion of fast device reduces the service life of compressor, causes the reliability of compressor lower.
Utility model content
The embodiment of the present application provides a kind of pressure texture and compressor, for reducing the noise of compressor, improves compressor
Reliability.
In a first aspect, the embodiment of the present application provides a kind of pressure texture, the pressure texture includes:
Pump assembly, including cylinder, crankshaft, roller and slide plate, wherein the crankshaft includes that crankshaft longitudinal end and crankshaft are short
Shaft end, the slide plate include slide plate top and slide plate stern notch；
Guiding mechanism is set between crankshaft short axle end and the slide plate stern notch, when the crank rotation is to drive
When the roller rotates, the guiding mechanism drives the vane motion with the rotation of the crankshaft, so that the slide plate top
Portion is abutted with roller holding, and the cavity space of the cylinder is separated into low-pressure area and higher-pressure region.
Optionally, the guiding mechanism include guide rod main body and guiding active connection, the one of the guide rod main body
End is fixedly connected with the slide plate stern notch, and the other end of the guide rod main body and one end of the guiding active connection are fixed
The other end of connection, the guiding active connection is fixedly connected with crankshaft short axle end；
Wherein, in the crank rotation, the guiding active connection is driven to be rotated through the guide rod
Main body drives the slide plate to rotate synchronously.
Optionally, the guiding active connection is hinge.
Optionally, the guiding active connection includes at least two hinge interconnected, at least two hinges of connection
One end of chain is fixedly connected with crankshaft short axle end, the other end of at least two hinges of connection and the guide rod main body
The other end is fixedly connected.
Optionally, one end of the guide rod main body is fixedly connected with the slide plate stern notch by fastener.
Optionally, pilot hole is offered in the slide plate stern notch, the other end of the guide rod main body passes through the assembly
Hole is connect with the slide plate interference close-fitting.
Optionally, the tail end of spring can be placed in realize that interference close-fitting connects by the size of the pilot hole.
Optionally, the shape of the guiding mechanism is circular bar shape or arc rod.
Optionally, the guiding mechanism is made of high temperature resistant material.
Second aspect, the embodiment of the present application provide a kind of compressor, and the compressor includes any described in first aspect
Pressure texture.
In the embodiment of the present application, by increasing the guiding mechanism being set between crankshaft short axle end and slide plate stern notch, quite
In being exactly that will establish drive connection between crankshaft and slide plate by guiding mechanism, in crank rotation to drive roller to carry out circumference fortune
In dynamic process, while guiding mechanism can also be driven rotate and then slide plate is driven to follow movement, that is to say, that by leading
To the induced effect of mechanism, crankshaft can drive roller to carry out circular motion, even if slide plate, which is used as, to be divided in the operating of compressor low frequency
It can effectively be contacted with roller holding at the moment from the high-low pressure component in cylinder chamber, therefore crankshaft operation will drive roller movement, from
And slide plate is also moved therewith.When crankshaft moves together with slide plate, it is ensured that crankshaft is completed (one when a circular motion
After second compression), slide plate can also be completed once to move back and forth, and then when ensuring that crankshaft, the roller duration of runs and slide plate move back and forth
Between it is consistent, to can effectively avoid the disengaging between roller and slide plate, and then effectively avoid slide plate sound, reduce compress on the whole
The noise of machine.Also, it prevents from being detached from since guiding mechanism can make slide plate remain effective abutting contact with roller,
The idle running of roller can be reduced to the greatest extent in this way and slide plate touches other components, it is possible to delay the abrasion of part as far as possible,
The service life for extending compressor, improves the reliability of compressor.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Inventive embodiments for those of ordinary skill in the art without creative efforts, can also be according to mentioning
The attached drawing of confession obtains other attached drawings.
Figure 1A is a kind of structure chart of pressure texture in the prior art；
Figure 1B is a kind of structure chart of pressure texture in the prior art；
Fig. 2 is a kind of structure chart of the pressure texture in the embodiment of the present application；
Fig. 3 A is the main view of the slide plate in the embodiment of the present application；
Fig. 3 B is the side view of the slide plate in the embodiment of the present application；
Fig. 4 is a kind of structure chart of the pressure texture in the embodiment of the present application；
Fig. 5 is a kind of structure chart of the pressure texture in the embodiment of the present application；
Fig. 6 is the realization principle schematic diagram of the guiding mechanism in the embodiment of the present application.
Specific embodiment
Technical solution provided by the embodiments of the present application in order to better understand, below in conjunction with Figure of description and specifically
Embodiment be described in detail.
Compressor belongs to one of component of refrigeration equipment, and refrigeration equipment is, for example, air-conditioning equipment, and compressor is for will be low
Body of calming the anger is promoted to the mechanism of high pressure gas.Compressor mainly include shell, cylinder, crankshaft, roller (or take Roller Shaft
Hold), the components such as slide plate and flange assembly, under the action of crankshaft, roller and slide plate so that the air pressure inside of cylinder changes,
And then the exhaust of intermittence.Figure 1A-Figure 1B is please referred to, a kind of pressure texture of existing compressor includes cylinder 101, crankshaft
102, roller 103, slide plate 104 and spring 105.Wherein, spring 105 is put into the spring eye of the tail end of slide plate 104, spring 105
The diameter for being put into the part of spring eye is slightly larger than the hole size of spring eye, so can be between spring 105 and slide plate 104 tight
It with assembly, i.e., is interference connection (or referred to as interference close-fitting connects) between spring 105 and slide plate 104.
Roller 103 and corresponding slide plate 104 are provided in cylinder 101, in the course of work of compressor, crankshaft 102
Eccentric part drives roller 103 to be rotated, i.e. circular motion, and slide plate 104 is kept under the action of spring 105 and roller
Contact between 103, so that the cavity space of cylinder 101 is divided into low-pressure area and higher-pressure region, in the specific implementation process, crankshaft
102 can be driven by motor rotation, so that slide plate 104 moves reciprocatingly with the circular motion of crankshaft 102, that is,
It says, drives roller 103 to carry out circular motion by crankshaft 102, so that slide plate 104 is as the high-low pressure component in separation cylinder chamber
Moment is kept in contact with roller 103, therefore the operating of crankshaft 102 will drive the movement of roller 103, so that slide plate 104 is also transported therewith
It is dynamic.In actual operational process, when compressor low frequency operate when, such as compressor with the lower frequency of 15HZ-30HZ (just
Normal frequency is usually 60HZ or so) when being operated, due to the elastic characteristic that spring 105 has, so that the fortune of roller 103 circles
Later, slide plate 104 may not complete primary reciprocating motion also, that is, lead to crankshaft 102,103 duration of runs of roller and slide plate 104
Reciprocation time it is inconsistent, and then cause to be detached between slide plate 104 and roller 103, slide plate 104 be detached from roller 103 it
The noise of slide plate sound is generated afterwards, such as slide plate 104 hits the strike note of " ticktock " of other components, so will lead to compression
Machine generates biggish noise problem, influences the use feeling of user.Meanwhile slide plate 104 is detached from for a long time with roller 103 and also will cause
Roller 103 dallies in cylinder chamber and slide plate 104 hits other components, to can accelerate the abrasion of part, shortens compression
The reliability of the service life of machine, compressor is low.
In consideration of it, the embodiment of the present application provides a kind of pressure texture, and it is shown in Figure 2, it is provided by the embodiments of the present application
Pressure texture includes cylinder 201, crankshaft 202, roller 203, slide plate 204 and guiding mechanism 200, wherein cylinder 201, crankshaft
202, the pump assembly of the whole composition compressor of roller 203, slide plate 204, in other words, pressure texture in the embodiment of the present application by
Pump assembly and guiding mechanism 200 form.
In the embodiment of the present application, crankshaft 202 may include crankshaft longitudinal end and crankshaft short axle end, using compressor as vertical pressure
For contracting machine, the placement direction of pressure texture referring to fig. 2, the crankshaft longitudinal end of crankshaft 202 be apart from roller 203 compared with
The crankshaft short axle end of remote one end and crankshaft 202 is apart from the closer one end of roller 203, alternatively, the crankshaft of crankshaft 202 is long
It is apart from the closer one end of slide plate 204 that shaft end, which is apart from the farther away one end of slide plate 204 and the crankshaft short axle end of crankshaft 202,.
And the structural schematic diagram of slide plate 204 shown in Fig. 3 A- Fig. 3 B is referred to, the slide plate 204 in the embodiment of the present application
Including at the top of slide plate 2041 and slide plate stern notch 2042.It is further continued for for Fig. 2, the guiding mechanism 200 in the embodiment of the present application is arranged
Between the crankshaft short axle end of crankshaft 202 and the slide plate stern notch 2042 of slide plate 204, such as one end and the crankshaft of guiding mechanism 200
202 crankshaft short axle end is fixedly connected and the other end of guiding mechanism 200 is fixedly connected with slide plate stern notch 2042, works as crankshaft
When 202 rotations are to drive roller 203 to rotate, guiding mechanism 200 drives slide plate 204 to move with the rotation of crankshaft 202, so that sliding
2041 keep abutting contact with roller 203 always at the top of the slide plate of piece 204, to the cavity space of cylinder 201 is separated into low
Pressure area and higher-pressure region.
In the embodiment of the present application, the shape of guiding mechanism 200 can be circular bar shape, arc rod (as shown in Figure 5), class rectangle
(as shown in Figure 2 and Figure 4) or other shapes, the concrete shape and size of guiding mechanism 200 can be according under compressor pumps
The space self-setting of chamber is replaced.In a kind of possible embodiment, guiding mechanism 200 can be cylindrical round bar connection
The shape of shape, round bar can reduce resistance, so that crankshaft 202 drives the movement of guiding mechanism 200 more smooth.
Further, since guiding mechanism 200 can operate for a long time inside compressor, higher temperature can be generated in this way,
So guiding mechanism 200 can be made of material resistant to high temperature, can extend guiding mechanism 200 as far as possible in this way uses the time,
Avoid damage parts as far as possible, for example, guiding mechanism 200 can be made of cast iron, or can by polytetrafluoroethylene (PTFE) (PTFE) or
Other materials resistant to high temperature are made.
In addition, in order to enable guiding mechanism 200 can promote as far as possible between slide plate 204 and roller 203 it is effective contact and
It prevents from coming off, can make guiding mechanism 200 that there is certain rigidity, such as the higher material system of some hardness can be used
At.
The realization principle schematic diagram of guiding mechanism 200 in the embodiment of the present application shown in Figure 6 is set by increasing
The guiding mechanism 200 being placed between crankshaft short axle end and slide plate stern notch 2042 is equivalent to crankshaft through guiding mechanism 200
Drive connection is established between 202 and slide plate 204, during rotation in crankshaft 202 to drive roller 203 to carry out circular motion,
Guiding mechanism 200 can also be driven rotate simultaneously and then slide plate 204 is driven to follow movement, that is to say, that pass through Guiding machine
The induced effect of structure 200, crankshaft 202 can drive roller 203 to carry out circular motion, even if in the operating of compressor low frequency, slide plate
The 204 high-low pressure components intracavitary as separation cylinder 201 can effectively contact at the moment with roller holding, therefore crankshaft 202 operates meeting
Roller 203 is driven to move, so that slide plate 204 also moves therewith.When crankshaft 202 and slide plate 204 move together, it is ensured that
When the circular motion of completion of crankshaft 202 (after first compression), slide plate 204 can also be completed once to move back and forth, and then ensure
Crankshaft 202,203 duration of runs of roller are consistent with 204 reciprocation time of slide plate, to can effectively avoid roller 203 and slide plate
Disengaging between 204, and then slide plate sound effectively is avoided, the noise of compressor is reduced on the whole.Also, due to guiding mechanism
200 can make slide plate 204 remain effective abutting contact with roller 203 and prevent from being detached from, and can reduce to the greatest extent in this way
The idle running of roller 203 and slide plate 204 touch other components, it is possible to delay the abrasion of part as far as possible, extend compressor
Service life, improve the reliability of compressor.
As shown in figure 4, the guiding mechanism 200 in the embodiment of the present application may include guide rod main body 2001 and guiding activity
One end of connector 2002, guide rod main body 2001 is fixedly connected with slide plate stern notch 2042, the other end of guide rod main body 2001
It is fixedly connected with one end of guiding active connection 2002, and is oriented to the other end of the active connection 200 then song with crankshaft 202
Axis short axle end is fixedly connected.That is, guiding mechanism 200 in the embodiment of the present application by guide rod main body 2001 and can be led
It is formed to this two parts of active connection 2002, and this two parts can be integrated molding design, or be also possible to by two
Isolated component is formed by connecting by connection type, and the embodiment of the present application is specifically made mode and does not limit to guiding mechanism 200
System.
In the specific implementation process, it is above-mentioned be fixedly connected can be it is non-removable be fixedly connected, such as welding or
Bonding, or be also possible to removably be fixedly connected, such as be fixedly connected by what fastener was realized, such as be threadedly coupled,
Rivet interlacement, etc., or be also possible to close-fitting connection, etc..For the mode of close-fitting connection, such as can be in slide plate stern notch
Pilot hole is offered on 2042, so that one end of guide rod main body 2001 can be placed in the pilot hole to realize interference
Connection, since interference to be realized connects, therefore, to assure that the size of one end of pilot hole and guide rod main body 2001 matches, in one kind
In optional mode, the size of the pilot hole can accommodate the tail end of spring in the prior art to realize the mistake between spring
In this case connection of being full of is accommodated guiding mechanism 200 by the pilot hole equally applicable with spring, can directly used in this way
It uses the slide plate 204 of spring originally in the prior art, to reduce the improvement to slide plate 204 to the greatest extent, reduces production cost, while more
Conducive to the popularization of scheme, the universality and applicability of enhanced scheme.
In a kind of possible embodiment, in order to ensure abundant effective contact between slide plate 204 and roller 203, lead
It non-removable can be fixedly connected to the connection between mechanism 200 and slide plate 204, can ensure guiding mechanism as far as possible in this way
Effective, fixed induced effect of 200 pairs of slide plates 204, thus ensure effective contact between slide plate 204 and roller 203 as far as possible,
It avoids being mutually disengaged.
In the specific implementation process, guiding active connection 2002 be it is some can connecting component movable as far as possible, specifically
For, guiding active connection 2002 is able to carry out certain activity so that the rotation of crankshaft 202 to be flexibly connected by guiding
Part 2002 and the transmission of guide rod main body 2001 are to slide plate 204, that is to say, that guiding active connection 2002 is to allow crankshaft
202 in the running (circular motion) allow guide rod main body 2002 to follow the movable part of movement, so in a kind of possibility
Embodiment in, guiding active connection 2002 can be hinge, naturally it is also possible to be other to be able to carry out movable connection
Component.
In addition, the quantity of hinge can be one or more, such as it can be one or two, and the quantity of hinge can press
The case where practical set, increases and decreases, this is primarily due to compressor and varies, as low as 5Kg, substantially 50Kg, it is possible to according to pressure
The spatial design of the pump housing cavity of contracting machine makes guide rod main body 2001 have difference slightly, and the application considers that slide plate 204 is past
Again move when more effectively with guide rod main body 2001 move, therefore can increase hinge (using two hinges) as
Movable part effectively to meet motion process as far as possible, to improve effectively contacting between slide plate 204 and roller 203.
Based on the same inventive concept, the embodiment of the present application also provides a kind of compressor, which gives an account of before including at least
Any pressure texture to continue, in addition, the compressor can also include other components such as outer housing, motor.Due to the application reality
Applying the compressor in example includes compression mechanism above-mentioned, so, which can efficiently reduce slide plate by guiding mechanism
The noises such as sound improve the reliability of compressor.
Specifically, by increasing the guiding mechanism being set between crankshaft short axle end and slide plate stern notch within the compressor,
It is equivalent to that drive connection will be established between crankshaft and slide plate by guiding mechanism, in crank rotation to drive roller to be justified
During Zhou Yundong, while guiding mechanism can also be driven rotate and then slide plate is driven to follow movement, that is to say, that is logical
The induced effect of guiding mechanism is crossed, crankshaft can drive roller to carry out circular motion, even if slide plate is made in the operating of compressor low frequency
It can effectively be contacted with roller holding at the moment for the high-low pressure component in separation cylinder chamber, therefore crankshaft operation will drive roller fortune
It is dynamic, so that slide plate also moves therewith.When crankshaft moves together with slide plate, it is ensured that when crankshaft completes a circular motion
(i.e. after first compression), slide plate can also be completed once to move back and forth, and then ensure that crankshaft, the roller duration of runs and slide plate are back and forth transported
Dynamic time consistency, to can effectively avoid the disengaging between roller and slide plate, and then effectively avoids slide plate sound, reduces on the whole
The noise of compressor.Also, it is prevented since guiding mechanism can make slide plate remain effective abutting contact with roller
It is detached from, the idle running of roller can be reduced to the greatest extent in this way and slide plate touches other components, it is possible to delay part as far as possible
Abrasion, extends the service life of compressor, improves the reliability of compressor.
Although the preferred embodiment of the application has been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the application range.
Obviously, those skilled in the art can carry out various modification and variations without departing from this Shen to the embodiment of the present application
Please embodiment spirit and scope.In this way, if these modifications and variations of the embodiment of the present application belong to the claim of this application
And its within the scope of equivalent technologies, then the application is also intended to include these modifications and variations.
Claims (10)
1. a kind of pressure texture, which is characterized in that the pressure texture includes:
Pump assembly, including cylinder, crankshaft, roller and slide plate, wherein the crankshaft includes crankshaft longitudinal end and crankshaft short axle
End, the slide plate include slide plate top and slide plate stern notch；
Guiding mechanism is set between crankshaft short axle end and the slide plate stern notch, when the crank rotation is described to drive
When roller rotates, the guiding mechanism drives the vane motion with the rotation of the crankshaft so that at the top of the slide plate with
The roller keeps abutting, and the cavity space of the cylinder is separated into low-pressure area and higher-pressure region.
2. pressure texture as described in claim 1, which is characterized in that the guiding mechanism includes that guide rod main body and guiding are lived
Follower link, one end of the guide rod main body are fixedly connected with the slide plate stern notch, the other end of the guide rod main body with
One end of the guiding active connection is fixedly connected, and the other end of the guiding active connection and crankshaft short axle end are solid
Fixed connection；
Wherein, in the crank rotation, the guiding active connection is driven to be rotated through the guide rod main body
The slide plate is driven to rotate synchronously.
3. pressure texture as claimed in claim 2, which is characterized in that the guiding active connection is hinge.
4. pressure texture as claimed in claim 3, which is characterized in that the guiding active connection include it is interconnected extremely
Few two hinges, one end of at least two hinges of connection are fixedly connected with crankshaft short axle end, at least two hinges of connection
The other end of chain is fixedly connected with the other end of the guide rod main body.
5. pressure texture as claimed in claim 2, which is characterized in that one end of the guide rod main body and the slide plate stern notch
It is fixedly connected by fastener.
6. pressure texture as claimed in claim 2, which is characterized in that pilot hole is offered in the slide plate stern notch, it is described to lead
It is connect to the other end of bar main body by the pilot hole with the slide plate interference close-fitting.
7. pressure texture as claimed in claim 6, which is characterized in that the size of the pilot hole can set the tail end of spring
Enter to realize that interference close-fitting connects.
8. pressure texture as claimed in claim 1, which is characterized in that the shape of the guiding mechanism be circular bar shape or
Arc rod.
9. pressure texture as claimed in claim 1, which is characterized in that the guiding mechanism is by high temperature resistant material system
At.
10. a kind of compressor, which is characterized in that the compressor includes any pressure texture of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821217069.XU CN208595065U (en) | 2018-07-30 | 2018-07-30 | A kind of pressure texture and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821217069.XU CN208595065U (en) | 2018-07-30 | 2018-07-30 | A kind of pressure texture and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208595065U true CN208595065U (en) | 2019-03-12 |
Family
ID=65603998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821217069.XU Active CN208595065U (en) | 2018-07-30 | 2018-07-30 | A kind of pressure texture and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208595065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610483A (en) * | 2020-12-29 | 2021-04-06 | 珠海格力电器股份有限公司 | Pump body assembly and fluid machine |
-
2018
- 2018-07-30 CN CN201821217069.XU patent/CN208595065U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610483A (en) * | 2020-12-29 | 2021-04-06 | 珠海格力电器股份有限公司 | Pump body assembly and fluid machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105570128A (en) | Compressor pump structure and compressor | |
| WO2007037061A1 (en) | Oscillation plate type compressor | |
| CN208595065U (en) | A kind of pressure texture and compressor | |
| JP6628888B2 (en) | Small air compressor | |
| KR20150102100A (en) | Fluid machine | |
| EP3721983A3 (en) | Inner core assembly and vibration mixer | |
| CN107956671A (en) | A kind of connecting rod piston device of air compressor machine or vacuum pump | |
| CN102292547B (en) | Hermetic compressor | |
| CN114753922A (en) | Double-connecting-rod crank piston mechanism | |
| CN212318693U (en) | Be applied to transmission of manadesma rifle | |
| JP5806071B2 (en) | Variable displacement plunger pump device | |
| JP2013122240A (en) | Refrigerant compressor | |
| CN203308543U (en) | Camshaft pressure-relief device | |
| CN202468203U (en) | Swash plate type reciprocating piston compressor | |
| CN104675664A (en) | Inspiration muffler device of linear compressor | |
| JP2008031908A (en) | Noise reduction structure for reciprocating piston engine | |
| CN203939689U (en) | The axial plunger type hydraulic pump of hydraulic pressure backhaul | |
| CN109899275A (en) | A kind of diaphragm type compressor | |
| KR101161128B1 (en) | A hermetic type compressor | |
| KR101053306B1 (en) | Piston of Hermetic Compressor | |
| CN202391706U (en) | Thrust plate and variable head assembly structure of plunger pump | |
| CN204327495U (en) | Anti-moving whirlpool plate compressor | |
| CN209671153U (en) | Oscillation bearing drives plunger booster pump | |
| KR101335345B1 (en) | Compressor | |
| KR101903897B1 (en) | Piston pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |