CN201463392U - Acoustic power amplifier for inertia pipe phase modulation and pulse tube refrigerator thereof - Google Patents
Acoustic power amplifier for inertia pipe phase modulation and pulse tube refrigerator thereof Download PDFInfo
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- CN201463392U CN201463392U CN2009201239086U CN200920123908U CN201463392U CN 201463392 U CN201463392 U CN 201463392U CN 2009201239086 U CN2009201239086 U CN 2009201239086U CN 200920123908 U CN200920123908 U CN 200920123908U CN 201463392 U CN201463392 U CN 201463392U
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- vascular
- hot junction
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- sound merit
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- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/10—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point with several cooling stages
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- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
- F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
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- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1408—Pulse-tube cycles with pulse tube having U-turn or L-turn type geometrical arrangements
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- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1414—Pulse-tube cycles characterised by pulse tube details
-
- 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
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/14—Compression machines, plants or systems characterised by the cycle used
- F25B2309/1421—Pulse-tube cycles characterised by details not otherwise provided for
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses an acoustic power amplifier for inertia pipe phase modulation and a pulse tube refrigerator thereof. The acoustic power amplifier is a metal pipe which is filled with back-heating materials inside, and the back-heating materials can be stainless steel wire screens, and all cold-storage materials capable of being used for low temperature such as lead shots, lead velvet and the like. The acoustic power amplifier is located in the X position of the hot end of the pulse tube, or the back-heating materials with the length of L is filled on the X position of the hot end to form the acoustic power amplifier in the pulse tube, and X-L>0 is satisfied. The acoustic power amplifier not only can be used in single-stage pulse tube refrigerators, but also can be used in multi-stage heat coupling or gas coupling type pulse tube refrigerator systems simultaneously. The acoustic power amplifier can increase the acoustic power of the hot end of the pulse tube, and the pressure rate can be reduced, which is beneficial for the phase modulation of inertia pipes, thereby improving the performance of the pulse tube refrigerator and avoiding the complexity due to adopting low temperature inertia pipes simultaneously.
Description
Technical field
The utility model relates to merit amplifier and adopts the vascular refrigerator of inertia tube phase modulation, relates in particular to a kind of sound merit amplifier and vascular refrigerator thereof that is used for the inertia tube phase modulation.
Background technology
Vascular refrigerator does not have the moving component under the low temperature, has advantages such as simple in structure, that cost is low, mechanical oscillation are little, reliability is high, the life-span is long, becomes the research focus of current Cryo Refrigerator.Compare GM type vascular refrigerator, the stirling-type vascular refrigerator is because little, the compact conformation of volume is subjected to extensive concern.By enthalpy stream phase modulation theory as can be known, the phase difference between mass flow and the pressure wave is very big to the refrigeration performance influence of vascular refrigerator, so select appropriate phase modulating mechanism to improving the vascular refrigerator performance significance to be arranged.Vascular refrigerator mainly can be divided into following three kinds according to pm mode at present: pinhole type, bidirection air intake type, inertia cast.Compare with the pinhole type pm mode, inertia tube utilizes the effect of inertia of oscillating air flow in the elongated tubular to come control phase poor, has wideer phase adjusted ability and more performance.Compare with bidirection air intake type pm mode, do not have loop in the inertia cylinder structure, can eliminate the fluctuation of the vascular cold junction temperature that causes owing to the direct current phenomenon, therefore, the inertia tube pm mode more is applicable to the stirling-type high-frequency vascular refrigerator.
People such as Radebaugh studies show that: in alternation flows, in the time of regenerator middle part mass flow and pressure wave homophase, the refrigerating efficiency of vascular refrigerator is the highest, the leading approximately pressure wave of mass flow in regenerator hot junction is 30 ° at this moment, the mass flow of cold junction falls behind 30 ° of pressure waves approximately, this just requires to fall behind about 60 ° of pressure wave in inertia tube porch mass flow, and this just means that inertia tube will have at least 60 ° phase modulation ability.It is unpractical for 60 ° that inertia tube inlet mass flow falls behind pressure wave, presses for the sound merit that improves the vascular hot junction, strengthens inertia tube phase modulation ability, to satisfy the phase modulation angle for the less vascular refrigerator of cold junction PV merit!
For desirable regenerator, its hot junction sound merit is proportional to hot-side temperature and cold junction temperature with the ratio of cold junction sound merit, utilize this principle, regenerative material is inserted in the appropriate location in vascular, to have the big effect of cold junction sound power amplifier, also be core content of the present utility model, this makes vascular hot junction inertia tube can obtain needed phase adjusted.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of sound merit amplifier and vascular refrigerator thereof that is used for the inertia tube phase modulation is provided.
The sound merit amplifier that is used for the inertia tube phase modulation is: the inner regenerative material of filling of metal tube, it is positioned at apart from X place, vascular hot junction, or is the regenerative material of L apart from hot junction X place filling length in vascular, satisfies X-L＞0.
A kind of vascular refrigerator of merit amplifier that has comprises a stage compressor, one-level regenerator, one-level vascular, one-level sound merit amplifier, one-level inertia tube, one-level air reservoir, one stage compressor links to each other with one-level regenerator hot junction, one-level regenerator cold junction links to each other with one-level vascular cold junction, one-level vascular hot junction links to each other with the one-level air reservoir through the one-level inertia tube, one-level sound merit amplifier is positioned at apart from the one-level vascular apart from hot junction X place, wherein one-level sound merit amplifier is X apart from the distance in vascular hot junction, the length of one-level sound merit amplifier is L, X-L＞0.
A kind of vascular refrigerator of merit amplifier that has comprises a stage compressor, the one-level regenerator, the one-level vascular, one-level sound merit amplifier, the one-level inertia tube, the one-level air reservoir, split-compressor, secondary regenerator precooling zone, secondary regenerator section, the secondary vascular, secondary sound merit amplifier, the secondary inertia tube, the secondary air reservoir, heat bridge, one stage compressor links to each other with one-level regenerator hot junction, one-level regenerator cold junction links to each other with one-level vascular cold junction, one-level vascular hot junction links to each other with the one-level air reservoir through the one-level inertia tube, one-level sound merit amplifier is positioned at apart from the one-level vascular apart from hot junction X place, wherein one-level sound merit amplifier is X apart from the distance in vascular hot junction, the length of one-level sound merit amplifier is L, X-L＞0. split-compressor links to each other with secondary regenerator precooling zone hot junction, secondary regenerator precooling zone cold junction links to each other with secondary regenerator section hot junction, secondary regenerator section cold junction links to each other with secondary vascular cold junction, secondary vascular hot junction links to each other with the secondary air reservoir through the secondary inertia tube, secondary sound merit amplifier is positioned at apart from the secondary vascular apart from hot junction X place, wherein secondary sound merit amplifier is X apart from the distance in vascular hot junction, the length of secondary sound merit amplifier is L, and X-L＞0. secondary regenerator precooling zone cold junction links to each other with the one-level cold junction by heat bridge.
A kind of vascular refrigerator of merit amplifier that has comprises the one-level vascular, one-level sound merit amplifier, the one-level inertia tube, the one-level air reservoir, split-compressor, secondary regenerator precooling zone, secondary regenerator section, the secondary vascular, secondary sound merit amplifier, the secondary inertia tube, the secondary air reservoir, heat bridge, one-level vascular cold junction communicates with secondary regenerator precooling zone hot junction, one-level vascular hot junction links to each other with the one-level air reservoir through the one-level inertia tube, one-level sound merit amplifier is positioned at apart from the one-level vascular apart from hot junction X place, wherein one-level sound merit amplifier is X apart from the distance in vascular hot junction, the length of one-level sound merit amplifier is L, X-L＞0.Split-compressor links to each other with secondary regenerator precooling zone hot junction, secondary regenerator precooling zone cold junction links to each other with secondary regenerator section hot junction, secondary regenerator section cold junction links to each other with secondary vascular cold junction, secondary vascular hot junction links to each other with the secondary air reservoir through the secondary inertia tube, secondary sound merit amplifier is positioned at apart from the secondary vascular apart from hot junction X place, wherein secondary sound merit amplifier is X apart from the distance in vascular hot junction, and the length of secondary sound merit amplifier A1 is L, X-L＞0.
The utility model increases the sound merit in vascular hot junction by increase sound merit amplifier in vascular, thereby increases the phase modulation angle of inertia tube, improves the performance of refrigeration machine.For desirable regenerator, its hot junction sound merit is proportional to hot-side temperature and cold junction temperature with the ratio of cold junction sound merit, utilize this principle, appropriate location increase sound merit amplifier in vascular, to have the big effect of cold junction sound power amplifier, also be core content of the present utility model, this makes vascular hot junction inertia tube can obtain needed phase adjusted.
Description of drawings
Fig. 1 is the single-stage pulse tube refrigerator schematic diagram that has merit amplifier, and sound merit amplifier is positioned at the vascular appropriate location;
Fig. 2 (a) is the two levels of thermal coupled mode vascular refrigerator schematic diagram that has merit amplifier, and firsts and seconds is employing sound merit amplifier all;
Fig. 2 (b) is the two levels of thermal coupled mode vascular refrigerator schematic diagram that has merit amplifier, only secondary employing sound merit amplifier;
Fig. 3 (a) is the two-stage gas coupled mode vascular refrigerator schematic diagram that has merit amplifier, and firsts and seconds is employing sound merit amplifier all;
Fig. 3 (b) is the two-stage gas coupled mode vascular refrigerator schematic diagram that has merit amplifier, only secondary employing sound merit amplifier;
Among the figure: C1: first order Linearkompressor RG1: first order regenerator PT1: first order vascular R1: first order air reservoir I1: first order inertia tube (room temperature) C2: second level Linearkompressor RG21: the regenerator precooling zone RG22 of the second level: second level regenerator active section PT2: second level vascular R2: second level air reservoir (room temperature) I2: second level inertia tube (room temperature) TB: heat bridge
The specific embodiment
The sound merit amplifier that is used for the inertia tube phase modulation is: the inner regenerative material of filling of metal tube, it is positioned at apart from X place, vascular hot junction, or is the regenerative material of L apart from hot junction X place filling length in vascular, X-L＞0.
As shown in Figure 1, have the vascular refrigerator of merit amplifier and comprise a stage compressor C1, one-level regenerator RG1, one-level vascular PT1, one-level sound merit amplifier A1, one-level inertia tube I1, one-level air reservoir R1, one stage compressor C1 links to each other with one-level regenerator RG1 hot junction, one-level regenerator RG1 cold junction links to each other with one-level vascular PT1 cold junction, one-level vascular PT1 hot junction links to each other with one-level air reservoir R1 through one-level inertia tube I1, one-level sound merit amplifier A1 is positioned at apart from one-level vascular PT1 apart from hot junction X place, wherein one-level sound merit amplifier A1 is X apart from the distance in vascular hot junction, the length of one-level sound merit amplifier A1 is L, X-L＞0.
As shown in Figure 2, have the vascular refrigerator of merit amplifier and comprise a stage compressor C1, one-level regenerator RG1, one-level vascular PT1, one-level sound merit amplifier A1, one-level inertia tube I1, one-level air reservoir R1, split-compressor C2, secondary regenerator precooling zone RG21, secondary regenerator section RG22, secondary vascular PT1, secondary sound merit amplifier A2, secondary inertia tube I2, secondary air reservoir R2, heat bridge TB, one stage compressor C1 links to each other with one-level regenerator RG1 hot junction, one-level regenerator RG1 cold junction links to each other with one-level vascular PT1 cold junction, one-level vascular PT1 hot junction links to each other with one-level air reservoir R1 through one-level inertia tube I1, one-level sound merit amplifier A1 is positioned at apart from one-level vascular PT1 apart from hot junction X place, wherein one-level sound merit amplifier A1 is X apart from the distance in vascular hot junction, the length of one-level sound merit amplifier A1 is L, X-L＞0.Split-compressor C2 links to each other with secondary regenerator precooling zone RG21 hot junction, secondary regenerator precooling zone RG21 cold junction links to each other with secondary regenerator section RG22 hot junction, secondary regenerator section RG22 cold junction links to each other with secondary vascular PT2 cold junction, secondary vascular PT2 hot junction links to each other with secondary air reservoir R2 through secondary inertia tube I2, secondary sound merit amplifier A2 is positioned at apart from secondary vascular PT2 apart from hot junction X place, wherein secondary sound merit amplifier A2 is X apart from the distance in vascular hot junction, the length of secondary sound merit amplifier A1 is L, X-L＞0.Secondary regenerator precooling zone RG21 cold junction links to each other with the one-level cold junction by heat bridge TB.
As shown in Figure 3, have the vascular refrigerator of merit amplifier and comprise one-level vascular PT1, one-level sound merit amplifier A1, one-level inertia tube I1, one-level air reservoir R1, split-compressor C2, secondary regenerator precooling zone RG21, secondary regenerator section RG22, secondary vascular PT1, secondary sound merit amplifier A2, secondary inertia tube I2, secondary air reservoir R2, heat bridge TB, one-level vascular PT1 cold junction communicates with secondary regenerator precooling zone RG21 hot junction, one-level vascular PT1 hot junction links to each other with one-level air reservoir R1 through one-level inertia tube I1, one-level sound merit amplifier A1 is positioned at apart from one-level vascular PT1 apart from hot junction X place, wherein one-level sound merit amplifier A1 is X apart from the distance in vascular hot junction, the length of one-level sound merit amplifier A1 is L, X-L＞0.Split-compressor C2 links to each other with secondary regenerator precooling zone RG21 hot junction, secondary regenerator precooling zone RG21 cold junction links to each other with secondary regenerator section RG22 hot junction, secondary regenerator section RG22 cold junction links to each other with secondary vascular PT2 cold junction, secondary vascular PT2 hot junction links to each other with secondary air reservoir R2 through secondary inertia tube I2, secondary sound merit amplifier A2 is positioned at apart from secondary vascular PT2 apart from hot junction X place, wherein secondary sound merit amplifier A2 is X apart from the distance in vascular hot junction, the length of secondary sound merit amplifier A1 is L, X-L＞0.
In sum, the utility model comprises the two large divisions, first is a merit amplifier, it is characterized in that inner metal tube of filling regenerative material, it can be positioned at vascular apart from hot junction X place, or to fill length apart from hot junction X place in vascular inside be the regenerative material formation sound merit amplifier of L, satisfies X-L＞0.Second portion is that merit amplifier can be used for single-stage and multistage thermal coupling and gas coupling pulse pipe refrigeration machine system at the same time or separately, and the length L of sound merit amplifier can freely be selected according to specific requirement.
The advantage of the inertia tube pm mode of oolemma sound merit amplifier below by calculating relatively: get three 35K two-stage high-frequency vascular vascular refrigerators, wherein one with normal temperature inertia tube phase modulation, one with low temperature inertia tube phase modulation, another is with the normal temperature inertia tube phase modulation of band sound merit amplifier, and wherein sound merit amplifier places 1/3 place, vascular middle part.Suppose that its frequency is 40HZ, the blowing pressure 1.25MP, hot junction adiabatic temperature 300K, air reservoir infinity, cold junction pressure ratio 1.15.
| System | Vascular cold junction sound merit | Vascular hot junction sound merit | Vascular hot junction pressure ratio | Inertia tube phase modulation angle | Remarks |
| Adopt the 35K two-stage high-frequency vascular refrigerator of low temperature inertia tube phase modulation | 2W | 2W | About 1.15 | About 70-80 ° | Secondary inertia tube and air reservoir place the 80K place, and the phase modulation angle is bigger, satisfy system's phase modulation requirement fully; But low temperature inertia tube complex structure is difficult to control. |
| Adopt the 35K two-stage high-frequency vascular refrigerator of normal temperature inertia tube phase modulation | 2W | 2W | About 1.15 | About 16 ° | The phase modulation angle is very little, is difficult to satisfy the requirement of system's phase modulation. |
| Adopt a kind of 35K two-stage high-frequency vascular refrigerator that is used for the sound merit amplifier of inertia tube phase modulation | 2W | 10W | About 1.10 | About 60 ° | Installation sound merit amplifier, pressure ratio reduces, and the sound merit increases, and all helps phase modulation, and the phase modulation angle meets the demands; Whole phase modulation apparatus places under the room temperature, has avoided the complexity of low temperature phase modulation. |
Learn relatively that by above calculating increase sound merit amplifier not only can increase the sound merit in vascular hot junction greatly, and can reduce pressure ratio, all helps system's phase modulation, avoided adopting the complexity of low temperature inertia tube simultaneously.
Claims (4)
1. a sound merit amplifier that is used for the inertia tube phase modulation is characterized in that, the inner regenerative material of filling of metal tube, and it is positioned at apart from X place, vascular hot junction, or is the regenerative material of L apart from hot junction X place filling length in vascular, satisfies X-L＞0.
2. one kind has the vascular refrigerator of merit amplifier, it is characterized in that comprising a stage compressor (C1), one-level regenerator (RG1), one-level vascular (PT1), one-level sound merit amplifier (A1), one-level inertia tube (I1), one-level air reservoir (R1), one stage compressor (C1) links to each other with one-level regenerator (RG1) hot junction, one-level regenerator (RG1) cold junction links to each other with one-level vascular (PT1) cold junction, one-level vascular (PT1) hot junction links to each other with one-level air reservoir (R1) through one-level inertia tube (I1), one-level sound merit amplifier (A1) is positioned at apart from one-level vascular (PT1) apart from hot junction X place, wherein one-level sound merit amplifier (A1) is X apart from the distance in vascular hot junction, the length of one-level sound merit amplifier A1 is L, X-L＞0.
3. one kind has the vascular refrigerator of merit amplifier, it is characterized in that comprising a stage compressor (C1), one-level regenerator (RG1), one-level vascular (PT1), one-level sound merit amplifier (A1), one-level inertia tube (I1), one-level air reservoir (R1), split-compressor (C2), secondary regenerator precooling zone (RG21), secondary regenerator section (RG22), secondary vascular (PT1), secondary sound merit amplifier (A2), secondary inertia tube (I2), secondary air reservoir (R2), heat bridge (TB), one stage compressor (C1) links to each other with one-level regenerator (RG1) hot junction, one-level regenerator (RG1) cold junction links to each other with one-level vascular (PT1) cold junction, one-level vascular (PT1) hot junction links to each other with one-level air reservoir (R1) through one-level inertia tube (I1), one-level sound merit amplifier (A1) is positioned at apart from one-level vascular (PT1) apart from hot junction X place, wherein one-level sound merit amplifier (A1) is X apart from the distance in vascular hot junction, the length of one-level sound merit amplifier (A1) is L, X-L＞0, split-compressor (C2) links to each other with secondary regenerator precooling zone (RG21) hot junction, secondary regenerator precooling zone (RG21) cold junction links to each other with secondary regenerator section (RG22) hot junction, secondary regenerator section (RG22) cold junction links to each other with secondary vascular (PT2) cold junction, secondary vascular (PT2) hot junction links to each other with secondary air reservoir (R2) through secondary inertia tube (I2), secondary sound merit amplifier (A2) is positioned at apart from secondary vascular (PT2) apart from hot junction X place, wherein secondary sound merit amplifier (A2) is X apart from the distance in vascular hot junction, the length of secondary sound merit amplifier (A1) is L, X-L＞0, secondary regenerator precooling zone (RG21) cold junction links to each other with the one-level cold junction by heat bridge TB.
4. one kind has the vascular refrigerator of merit amplifier, it is characterized in that comprising one-level vascular (PT1), one-level sound merit amplifier (A1), one-level inertia tube (I1), one-level air reservoir (R1), split-compressor (C2), secondary regenerator precooling zone (RG21), secondary regenerator section (RG22), secondary vascular (PT1), secondary sound merit amplifier (A2), secondary inertia tube (I2), secondary air reservoir (R2), heat bridge (TB), one-level vascular (PT1) cold junction communicates with secondary regenerator precooling zone (RG21) hot junction, one-level vascular (PT1) hot junction links to each other with one-level air reservoir (R1) through one-level inertia tube (I1), one-level sound merit amplifier (A1) is positioned at apart from one-level vascular (PT1) apart from hot junction X place, wherein one-level sound merit amplifier (A1) is X apart from the distance in vascular hot junction, the length of one-level sound merit amplifier (A1) is L, X-L＞0, split-compressor (C2) links to each other with secondary regenerator precooling zone (RG21) hot junction, secondary regenerator precooling zone (RG21) cold junction links to each other with secondary regenerator section (RG22) hot junction, secondary regenerator section (RG22) cold junction links to each other with secondary vascular (PT2) cold junction, secondary vascular (PT2) hot junction links to each other with secondary air reservoir (R2) through secondary inertia tube (I2), secondary sound merit amplifier (A2) is positioned at apart from secondary vascular (PT2) apart from hot junction X place, wherein secondary sound merit amplifier (A2) is X apart from the distance in vascular hot junction, the length of secondary sound merit amplifier A1 is L, X-L＞0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201239086U CN201463392U (en) | 2009-06-29 | 2009-06-29 | Acoustic power amplifier for inertia pipe phase modulation and pulse tube refrigerator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201239086U CN201463392U (en) | 2009-06-29 | 2009-06-29 | Acoustic power amplifier for inertia pipe phase modulation and pulse tube refrigerator thereof |
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| Publication Number | Publication Date |
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| CN201463392U true CN201463392U (en) | 2010-05-12 |
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| CN2009201239086U Expired - Lifetime CN201463392U (en) | 2009-06-29 | 2009-06-29 | Acoustic power amplifier for inertia pipe phase modulation and pulse tube refrigerator thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506513A (en) * | 2011-11-09 | 2012-06-20 | 浙江大学 | Stirling pulse tube refrigerator connected with displacer |
| CN101603743B (en) * | 2009-06-29 | 2012-07-11 | 浙江大学 | Acoustic power amplifier used in inertia tube phase adjustment and pulse tube refrigerator thereof |
-
2009
- 2009-06-29 CN CN2009201239086U patent/CN201463392U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101603743B (en) * | 2009-06-29 | 2012-07-11 | 浙江大学 | Acoustic power amplifier used in inertia tube phase adjustment and pulse tube refrigerator thereof |
| CN102506513A (en) * | 2011-11-09 | 2012-06-20 | 浙江大学 | Stirling pulse tube refrigerator connected with displacer |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100512 Effective date of abandoning: 20090629 |