CN108150537A - A kind of novel valveless air bearing devices - Google Patents
A kind of novel valveless air bearing devices Download PDFInfo
- Publication number
- CN108150537A CN108150537A CN201711259224.4A CN201711259224A CN108150537A CN 108150537 A CN108150537 A CN 108150537A CN 201711259224 A CN201711259224 A CN 201711259224A CN 108150537 A CN108150537 A CN 108150537A
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- China
- Prior art keywords
- piston
- current
- metering hole
- limiting system
- gas bearing
- 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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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 230000006835 compression Effects 0.000 claims abstract description 12
- 238000007906 compression Methods 0.000 claims abstract description 12
- 238000009826 distribution Methods 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 abstract description 9
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000005461 lubrication Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
- F16C32/0603—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion
- F16C32/0614—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings
- F16C32/0622—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings supported by a gas cushion, e.g. an air cushion the gas being supplied under pressure, e.g. aerostatic bearings via nozzles, restrictors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/42—Pumps with cylinders or pistons
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The invention discloses a kind of novel valveless air bearing devices, including at least piston and cylinder, the piston ring gap is equipped in can move reciprocatingly in the cylinder and in cylinder, the piston includes cylindric piston only, several current-limiting mechanisms being set on the piston only, the current-limiting mechanism includes the current limliting inlet channel axially set along piston only and the metering hole being embedded on piston only outer surface, metering hole is connected with current limliting inlet channel, the metering hole of several current-limiting mechanisms is axially uniformly arranged along piston only, the compression chamber formed between the piston nose and cylinder is connected by the annular space current-limiting type formed between current-limiting mechanism and piston and cylinder；The present invention realizes gas circulation current limliting by current-limiting mechanism so that piston structure is simple, durable, the current limiting system being equipped with will be segmented injection annular space for the gas of lubrication, it is stable, reliability is high, it is also ensured that gap avoids rubbing, and extends the service life of refrigeration machine.
Description
Technical field
The present invention is to be related to a kind of air bearing devices, is to be related to a kind of novel valveless air bearing devices specifically.
Background technology
In modern Cryo Refrigerator, people run the high efficiency of refrigeration machine, compact, long-life etc. is increasingly
Pay attention to.The interstitial radii of acoustic energy refrigeration machine using linear motor as driving device, piston and cylinder is generally at 20 μm hereinafter, protecting
It is the key that the operation of refrigeration machine long-life to demonstrate,prove suitable clearance seal radius.Gas bearing is as one kind using gas as lubricant
Sliding bearing, pressure air film can be formed between piston and cylinder, the contact wear of piston and cylinder is avoided, makes refrigeration machine
Meet the requirement of long-life.
Existing gas bearing is mostly to be equipped with the inflatable chamber that one-way air inlet is controlled by air inlet valve body, such as Chinese patent
028194356.7 discloses a kind of gas bearing for free-piston stirling machine tool equipment, including porous strip material, branch
Fagging, through-hole, piston, cylinder, leaf valve and inflatable chamber.When compressing cavity pressure higher than inflation cavity pressure, the open-top spring of gas
Plate valve enters inflatable chamber, after gas flows through porous belts shape material, by through-hole and port, eventually enters into annular space.It is but this kind of to carry
The shortcomings that gas bearing of valve body, is the check valve bodies such as leaf valve need to be used to prevent the gas in inflatable chamber from falling as check-valves
Flow back to compression chamber.Not only fatigue fracture easily occurs under long-term HF switch for leaf valve, and increases the complexity of device, and zero
Part requirement on machining accuracy is high, and complex process increases material cost and processing cost；Therefore it is a kind of prolonged resistance to thirst for exploitation by people
With, reliability is high, the simple novel valveless air bearing devices of processing and manufacturing, to ensure that gap avoids rubbing, extend refrigeration machine
Service life.
Invention content
In view of the above-mentioned problems existing in the prior art and demand, the object of the present invention is to provide a kind of durable, reliable
Property high, the simple novel valveless air bearing devices of processing and manufacturing, to ensure that gap avoids rubbing, extend refrigeration machine uses the longevity
Life.
To achieve the above object, the technical solution adopted by the present invention is as follows：
A kind of novel valveless air bearing devices, including at least piston and cylinder, the piston ring gap is equipped in institute
State in cylinder and can move reciprocatingly in the cylinder, the piston include cylindric piston only, it is several be set to it is described
Current-limiting mechanism on piston only, it is characterised in that：The current-limiting mechanism includes the current limliting axially set along the piston only
Inlet channel and the metering hole being embedded on the piston only outer surface, the metering hole connect with the current limliting inlet channel
Logical, the metering hole of several current-limiting mechanisms is axially uniformly arranged along the piston only, between the piston nose and cylinder
The compression chamber of formation is connected by the annular space current-limiting type formed between the current-limiting mechanism and the piston and cylinder.
A kind of embodiment, the aperture of the metering hole is 0.06mm-0.1mm.
A kind of embodiment, the aperture of the current limliting inlet channel is 0.4mm-0.6mm.
A kind of embodiment, the extension of the metering hole offer air outlet.
Preferably, equipped with the current limiting system being made of array current-limiting mechanism, the current limiting system includes main gas
Bearing current limiting system, the first auxiliary gas bearing current limiting system and the second auxiliary gas bearing current limiting system, the main gas axis
The metering hole for holding current limiting system is located on the same radial section in the piston only centre position, the first auxiliary gas axis
The metering hole for holding current limiting system is located at the piston only on the same radial section of top position of compression chamber, and described second
The metering hole of auxiliary gas bearing current limiting system is located at bottom position same radial section of the piston only close to back pressure cavity
On.
As further preferred scheme, the area of the air outlet of the main gas bearing current limiting system is respectively described
The outlet side of the area of the air outlet of one auxiliary gas bearing current limiting system and the second auxiliary gas bearing current limiting system
2 times of the area of mouth.
As further preferred scheme, the air outlet of the main gas bearing current limiting system is circular configuration, described the
The air outlet of one auxiliary gas bearing current limiting system and the air outlet of the second auxiliary gas bearing current limiting system are
Rectangular configuration.
As further preferred scheme, the main gas bearing current limiting system include 4 current-limiting mechanisms, described first
Auxiliary gas bearing current limiting system and the second auxiliary gas bearing current limiting system respectively include 2 current-limiting mechanisms.
As further preferred scheme, the metering hole of the main gas bearing current limiting system, the first auxiliary gas bearing limit
The metering hole of the metering hole of streaming system and the second auxiliary gas bearing current limiting system is between any two in the piston only outer surface
On axially offset distribution.
A kind of embodiment, the metering hole are radially set along the piston only.
A kind of embodiment, the metering hole are connected with the bottom of the current limliting inlet channel.
The aperture of above-mentioned current limliting inlet channel and length, the aperture of the metering hole have according to the use demand of different operating modes
Body designs.
Compared with prior art, the present invention has the advantages that：
Gas bearing of the present invention is realized gas circulation current limliting by current-limiting mechanism, is made without easily worn parts such as leaf valves
Piston structure is simple, durable, the main gas bearing current-limiting mechanism that is equipped with, the first auxiliary gas bearing current-limiting mechanism and the
Two auxiliary gas bearing current-limiting mechanisms will be segmented injection annular space for the gas of lubrication, and gas injection rate is made a distinction between the important and the lesser one, lubrication effect
Fruit is good, piston is stable, reliability is high, in addition, the present invention not only fabricate it is simple, of low cost, it is also ensured that gap
It avoids rubbing, extends the service life of refrigeration machine, there is apparent progressive and application value.
Description of the drawings
Fig. 1 is a kind of novel valveless air bearing devices structure diagram provided in an embodiment of the present invention；
Fig. 2 is the A-A sectional views of Fig. 1；
Fig. 3 is the B-B sectional views of Fig. 2；
Fig. 4 is the C-C sectional views of Fig. 1；
Fig. 5 is the D-D sectional views of Fig. 4；
Fig. 6 is the E-E sectional views of Fig. 1；
Fig. 7 is the F-F sectional views of Fig. 6；
Fig. 8 is the structure diagram of piston provided in an embodiment of the present invention.
Figure label is schematically as follows：1st, piston；11st, piston only；12nd, current-limiting mechanism；121st, current limliting inlet channel；122、
Metering hole；123rd, air outlet；2nd, cylinder；3rd, compression chamber；4th, annular space；5th, current-limiting mechanism；51st, main gas bearing current-limiting mechanism；
52nd, the first auxiliary gas bearing current-limiting mechanism；53rd, the second auxiliary gas bearing current-limiting mechanism.
Specific embodiment
Technical scheme of the present invention is described in further detail below in conjunction with drawings and examples.
Embodiment
With reference to shown in Fig. 1 to Fig. 8, a kind of novel valveless air bearing devices provided in this embodiment, including at least piston 1
With cylinder 2,1 annular space of piston is equipped in the cylinder 2 and can move reciprocatingly in the cylinder 2, the work
Plug 1 includes cylindric piston only 11, several current-limiting mechanisms 12 being set on the piston only, and the current-limiting mechanism 12 wraps
Include the current limliting inlet channel 121 axially set along the piston only and the metering hole being embedded on the piston only outer surface
122, the metering hole 122 is connected with the current limliting inlet channel 121, and the metering holes 122 of several current-limiting mechanisms 12 is along institute
It states piston only 11 to be axially uniformly arranged, the compression chamber 3 formed between 1 front end of piston and cylinder 2 passes through the current limliting machine
4 current-limiting type of annular space formed between structure 12 and the piston 1 and cylinder 2 connects, and the aperture of the metering hole 122 is 0.06mm-
0.1mm, the aperture of the current limliting inlet channel 121 is 0.4mm-0.6mm, wherein, flow direction of the gas in current-limiting mechanism
As illustrated in figs. 2-7.
For the ease of the uniform diffusion of gas at metering hole, the extension of the metering hole 122 offers air outlet 123,
As illustrated in figs. 2 through 8.
For the ease of uniform diffusion of the gas in annular space 4 in 11 axial direction of piston only, as shown in figure 8, equipped with by
The current limiting system 5 that array current-limiting mechanism 12 is formed, the current limiting system 5 are assisted including main gas bearing current limiting system 51, first
Gas bearing current limiting system 52 and second assists gas bearing current limiting system 53, as shown in Figure 2 and Figure 3, the main gas bearing limit
The metering hole 122 of streaming system 51 is located on the same radial section in 11 centre position of piston only, as shown in Figure 4, Figure 5,
The metering hole 122 of the first auxiliary gas bearing current limiting system 52 is located at the piston only 11 close to the top of compression chamber 3
On the same radial section in position, as shown in Figure 6, Figure 7, the metering hole 122 of the second auxiliary gas bearing current limiting system 53
In the piston only 11 on the same radial section of bottom position of back pressure cavity.
In view of distribution of the high pressure gas in annular space, as shown in figure 8, the outlet of the main gas bearing current limiting system 51
The area of port 123 is respectively the area and described the of the air outlet 123 of the first auxiliary gas bearing current limiting system 52
2 times of the area of the air outlet 123 of two auxiliary gas bearing current limiting systems 53；
The air outlet 123 of the main gas bearing current limiting system 51 is circular configuration, the first auxiliary gas bearing
The air outlet 123 of current limiting system 52 and the air outlet 123 of the second auxiliary gas bearing current limiting system 53 are rectangle
Structure；
As shown in Fig. 3, Fig. 5, Fig. 7 and Fig. 8, the main gas bearing current limiting system 51 includes 4 current-limiting mechanisms 12,
The first auxiliary gas bearing current limiting system 52 and the second auxiliary gas bearing current limiting system 53 are respectively included described in 2
Current-limiting mechanism 12；
The metering hole 122, first of the main gas bearing current limiting system 51 assists the current limliting of gas bearing current limiting system 52
The metering hole 122 of the auxiliary gas bearing current limiting system of hole 122 and second 53 is between any two on 11 outer surface of piston only
Distribution is axially offset, as shown in Figure 8；It is axially symmetric along piston only 11 in annular space 4 by above-mentioned setting high pressure gas
Property distribution, along 11 radially uniform distribution of piston only so that the operation in cylinder 2 of piston 1 is more stable.
In view of gas in 12 internal mobility of current-limiting mechanism, the metering hole 122 is radially set along the piston only 11,
The metering hole 122 is connected with the bottom of the current limliting inlet channel 121, as shown in Fig. 2, Fig. 4 and Fig. 6.
In view of the application demand of different operating modes, the aperture of the current limliting inlet channel 121 and length, the metering hole
It is specifically designed according to specific operating mode use demand in 122 aperture.
In the present embodiment, as illustrated in figs. 2-7, since the compression chamber 3 formed between 1 front end of piston and cylinder 2 passes through limit
Stream mechanism 12 is connected with 4 current-limiting type of annular space formed between piston 1 and cylinder 2, as piston 1 is pushed ahead in cylinder 2, pressure
High pressure gas in contracting chamber 3 enters annular space 4 by current limliting inlet channel 121 through the metering hole 122 at air outlet 123, plays
Lubricating action prevents piston 1 from rubbing with cylinder 2；When 3 gas pressure of compression chamber declines, the gas in annular space 4 is difficult by narrow
Small metering hole 122 is back to current limliting inlet channel 121, therefore only a small amount of residual gas in current limiting inlet channel 121 returns
Compression chamber 3 is flow to, the dead volume thereby resulted in is very little, and overall performance will not be impacted.
It is visible in summary：The air bearing devices pass through current limliting without easily worn parts such as leaf valves in the present embodiment
Mechanism 12 realizes gas circulation current limliting so that piston 2 is simple in structure, durable, the main gas bearing current-limiting mechanism 51 that is equipped with,
First auxiliary gas bearing current-limiting mechanism 52 and the second auxiliary gas bearing current-limiting mechanism 53, are noted being segmented for the gas of lubrication
Enter annular space 4, gas injection rate is made a distinction between the important and the lesser one, and high lubricating effect, piston are stable, reliability is high, in addition, the present invention not only adds
Work is simple to manufacture, is of low cost, it is also ensured that gap avoids rubbing, and extends the service life of refrigeration machine, has apparent progress
Property and application value.
It is last it is necessarily pointed out that：The foregoing is merely the preferable specific embodiment of the present invention, but the present invention
Protection domain be not limited thereto, any one skilled in the art in the technical scope disclosed by the present invention,
The change or replacement that can be readily occurred in, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of novel valveless air bearing devices, including at least piston and cylinder, the piston ring gap is equipped in described
Can move reciprocatingly in cylinder and in the cylinder, the piston including cylindric piston only, several be set to the work
Fill in the current-limiting mechanism on ontology, it is characterised in that：The current-limiting mechanism include along the current limliting that the piston only is axially set into
Gas channel and the metering hole being embedded on the piston only outer surface, the metering hole are connected with the current limliting inlet channel,
The metering hole of several current-limiting mechanisms is axially uniformly arranged along the piston only, is formed between the piston nose and cylinder
Compression chamber connected by the annular space current-limiting type formed between the current-limiting mechanism and the piston and cylinder.
2. air bearing devices according to claim 1, it is characterised in that：The aperture of the metering hole is 0.06mm-
0.1mm。
3. air bearing devices according to claim 1, it is characterised in that：The aperture of the current limliting inlet channel is
0.4mm-0.6mm。
4. air bearing devices according to claim 1, it is characterised in that：The extension of the metering hole offers outlet side
Mouthful.
5. the air bearing devices according to claim 1 or 4, it is characterised in that：Equipped with what is be made of array current-limiting mechanism
Current limiting system, it is auxiliary that the current limiting system includes main gas bearing current limiting system, the first auxiliary gas bearing current limiting system and second
Gas bearing current limiting system is helped, the metering hole of the main gas bearing current limiting system is located at the same of the piston only centre position
On one radial section, the metering hole of the first auxiliary gas bearing current limiting system is located at the piston only close to compression chamber
On the same radial section of top position, the metering hole of the second auxiliary gas bearing current limiting system is located at the piston only and leans on
On the same radial section of bottom position of nearly back pressure cavity.
6. air bearing devices according to claim 5, it is characterised in that：The outlet of the main gas bearing current limiting system
The area of port is respectively the area of the air outlet of the first auxiliary gas bearing current limiting system and the second auxiliary gas
2 times of the area of the air outlet of body bearing current limiting system.
7. air bearing devices according to claim 5, it is characterised in that：The main gas bearing current limiting system includes 4
A current-limiting mechanism, the first auxiliary gas bearing current limiting system and the second auxiliary gas bearing current limiting system difference
Including 2 current-limiting mechanisms.
8. air bearing devices according to claim 5, it is characterised in that：The current limliting of the main gas bearing current limiting system
The metering hole in hole, the metering hole of the first auxiliary gas bearing current limiting system and the second auxiliary gas bearing current limiting system is between any two
Distribution is axially offset on the piston only outer surface.
9. air bearing devices according to claim 1, it is characterised in that：The metering hole along the piston only radially
Setting.
10. air bearing devices according to claim 1, it is characterised in that：The metering hole leads to the current limliting air inlet
The bottom connection in road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259224.4A CN108150537B (en) | 2017-12-04 | 2017-12-04 | Valveless gas bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259224.4A CN108150537B (en) | 2017-12-04 | 2017-12-04 | Valveless gas bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108150537A true CN108150537A (en) | 2018-06-12 |
| CN108150537B CN108150537B (en) | 2024-04-09 |
Family
ID=62466562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711259224.4A Active CN108150537B (en) | 2017-12-04 | 2017-12-04 | Valveless gas bearing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150537B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870793A (en) * | 2018-08-02 | 2018-11-23 | 杨厚成 | A kind of sound energy free-piston type refrigeration machine |
| CN114294330A (en) * | 2021-12-30 | 2022-04-08 | 哈尔滨工业大学 | High-precision rotating ring-shaped part inner supporting air-floating type static balancing device |
| CN115030814A (en) * | 2022-05-16 | 2022-09-09 | 中国科学院理化技术研究所 | Piston cylinder body matching structure, free piston engine and generator |
| CN116480688A (en) * | 2022-01-13 | 2023-07-25 | 中国科学院理化技术研究所 | Gas bearings, compressors and engines |
| CN117231467A (en) * | 2023-11-13 | 2023-12-15 | 瑞纳智能设备股份有限公司 | Compressor |
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| US4383423A (en) * | 1980-04-02 | 1983-05-17 | Nouvelles Applications Technologiques | Thermal separators employing a movable distributor |
| CN1467461A (en) * | 2002-07-09 | 2004-01-14 | 中国科学院理化技术研究所 | Non-magnetic and low-vibration coaxial pulse tube refrigerator |
| CN202031986U (en) * | 2011-04-02 | 2011-11-09 | 上海理工大学 | Hydrostatic gas bearing |
| US20120063711A1 (en) * | 2010-09-09 | 2012-03-15 | Orion Corporation | Hydrodynamic bearing with adaptive displacement control |
| CN103939467A (en) * | 2014-05-04 | 2014-07-23 | 中国电子科技集团公司第十六研究所 | Air hydrostatic bearing of machine making free piston type reciprocating motion |
| US20140326128A1 (en) * | 2011-11-16 | 2014-11-06 | Whirlpool S.A. | Flow restrictor and gas compressor |
| CN105952798A (en) * | 2016-07-13 | 2016-09-21 | 重庆大学 | High-precision static pressure air bearing |
| CN207921124U (en) * | 2017-12-04 | 2018-09-28 | 陕西仙童科技有限公司 | A kind of novel valveless air bearing devices |
-
2017
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| US4383423A (en) * | 1980-04-02 | 1983-05-17 | Nouvelles Applications Technologiques | Thermal separators employing a movable distributor |
| CN1467461A (en) * | 2002-07-09 | 2004-01-14 | 中国科学院理化技术研究所 | Non-magnetic and low-vibration coaxial pulse tube refrigerator |
| US20120063711A1 (en) * | 2010-09-09 | 2012-03-15 | Orion Corporation | Hydrodynamic bearing with adaptive displacement control |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870793A (en) * | 2018-08-02 | 2018-11-23 | 杨厚成 | A kind of sound energy free-piston type refrigeration machine |
| CN114294330A (en) * | 2021-12-30 | 2022-04-08 | 哈尔滨工业大学 | High-precision rotating ring-shaped part inner supporting air-floating type static balancing device |
| CN114294330B (en) * | 2021-12-30 | 2022-09-23 | 哈尔滨工业大学 | High-precision rotating ring-shaped part inner supporting air-floating type static balancing device |
| CN116480688A (en) * | 2022-01-13 | 2023-07-25 | 中国科学院理化技术研究所 | Gas bearings, compressors and engines |
| CN115030814A (en) * | 2022-05-16 | 2022-09-09 | 中国科学院理化技术研究所 | Piston cylinder body matching structure, free piston engine and generator |
| CN117231467A (en) * | 2023-11-13 | 2023-12-15 | 瑞纳智能设备股份有限公司 | Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108150537B (en) | 2024-04-09 |
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