CN106337757B - A kind of Stirling engine variable-volume formula piston - Google Patents
A kind of Stirling engine variable-volume formula piston Download PDFInfo
- Publication number
- CN106337757B CN106337757B CN201611029233.XA CN201611029233A CN106337757B CN 106337757 B CN106337757 B CN 106337757B CN 201611029233 A CN201611029233 A CN 201611029233A CN 106337757 B CN106337757 B CN 106337757B
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- stirling engine
- cooling cylinder
- barrel
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- 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
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000003562 lightweight material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G1/00—Hot gas positive-displacement engine plants
- F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
- F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
- F02G1/053—Component parts or details
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Closures For Containers (AREA)
Abstract
A kind of Stirling engine variable-volume formula piston, the present invention relates to Stirling engine field, its structure is：Including flexible plunger, flexible plunger is tightly connected with sealing flange, and sealing flange is tightly connected by screw A and cooling cylinder, cooling cylinder by sealing ring, screw B and hot cylinder, it is characterised in that：The sealing flange is also fixed with V-shape piston support with cooling cylinder by screw A, V-shape piston support is fixedly connected by connection sheet with elastic end socket, elastic end socket is fixedly connected by being arranged on the shoe at piston gap with piston barrel, pressure equalisation hole is provided with piston barrel, the pressure equalisation hole is arranged on piston barrel bottom up more than 2/3rds place.The beneficial effects of the present invention are：Its internal pressure and cylinder internal pressure strongly consistent, therefore variable-volume formula piston does not need high rigidity pressure-resistant material, reduces production cost, while reducing gas to promote piston movement to waste interior energy, and then improves the utilization rate of gas internal energy.
Description
First, technical field
The present invention relates to Stirling engine field, more particularly to a kind of Stirling engine variable-volume formula piston.
2nd, background technology
Stirling engine with free piston is by free-piston, power piston, hot cylinder, cooling cylinder, crank driving mechanism composition；
Free-piston is connected with power piston by bar-link drive, when the engine is running, and free-piston is in power piston
90 degree of phase angle operations, to ensure the Carnot cycle in hot cylinder and cooling cylinder；Because Stirling engine with free piston is to airtight
Property require high, therefore power piston, the connecting rod of free-piston at cylinder with being also required to be fitted close to reduce refrigerant leakage；At present
Encapsulating method be by high-precision machining, from the strong connecting rod of rigidity and piston material and use multilayer sealing ring；This
The method of kind difficulty of processing is big, and equipment is expensive, complicated, and sealing effectiveness is not obvious, and when engine high pressure is run, it is sealed
Property is there is no guarantee that positive confinement.
3rd, the content of the invention
The present invention provides a kind of Stirling engine variable-volume formula piston, including flexible plunger regarding to the issue above（1）,
Flexible plunger（1）With sealing flange（2）It is tightly connected, sealing flange（2）Pass through screw A（3）With cooling cylinder（7）Connection, cooling cylinder（7）
Pass through sealing ring（11）, screw B（9）With hot cylinder（10）It is tightly connected, it is characterised in that：The sealing flange（2）With cooling cylinder（7）
Also pass through screw A（3）It is fixed with V-shape piston support（4）, V-shape piston support（4）Pass through connection sheet（5）With elastic end socket（14）
It is fixedly connected, elastic end socket（14）Pass through the shoe being arranged at piston gap（13）With piston barrel（6）It is fixedly connected,
Piston barrel（6）On be provided with pressure equalisation hole（12）, the pressure equalisation hole（12）It is arranged on piston barrel（6）Bottom is up
More than 2/3rds places.
The cooling cylinder（7）On be additionally provided with heat abstractor（8）, the heat abstractor（8）To be fixed on cooling cylinder（7）On dissipate
Backing, fin is made up of heat sink material.
The V-shape piston support（4）There are 2, Central Symmetry is set.
Piston barrel（6）It is made up of heat conduction and resistant to elevated temperatures lightweight material；Elastic end socket（14）For elaxtic seal system
Into；V-shape piston support（4）It is made up of rigid material.
Piston barrel（6）The pressure equalisation hole of upper setting（12）Make gas in piston barrel（6）Interior and hot cylinder（10）It is interior it
Between flow freely.
Piston barrel（6）Outer wall and hot cylinder（10）And cooling cylinder（7）Inwall between gap be less than 10mm.
The present invention operation principle be：When engine is shut down, flexible plunger（1）It is in an intermediate position, piston barrel（6）Place
In hot cylinder（10）And cooling cylinder（7）Centre, piston barrel（6）Interior pressure and hot cylinder（10）And cooling cylinder（7）Interior pressure is identical；Work as heat
Cylinder（10）After being heated, hot gas rises, and passes through pressure equalisation hole（12）Into piston barrel（6）It is interior, piston barrel（6）Internal pressure
Power increase, piston barrel（6）Internal volume expands, and moves downward, now cooling cylinder（7）With flexible plunger（1）Internal cavity
Space increases, pressure reduction, promotes flexible plunger（1）Decline, piston barrel（6）Volume contraction after interior gas completes, stream
Go out piston barrel（6）Into hot cylinder（10）It is interior, piston barrel（6）Original position is returned to, because heating continues and gas backstreaming,
Hot cylinder（10）And cooling cylinder（7）Internal pressure insists on height of continuing rising, promotes flexible plunger（1）Original position is moved up to, now cooling cylinder
（7）Space increases, pressure reduction, promotes piston barrel（6）Motion upwards, volume contraction, gas passes through pressure equalisation hole（12）
Enter hot cylinder（10）And cooling cylinder（7）It is interior, make cooling cylinder（7）Internal pressure power continues to increase, and promotes flexible plunger（1）Continue up fortune
It is dynamic, cooling cylinder（7）With flexible plunger（1）Volume contraction after interior gas completes, gas passes through pressure equalisation hole（12）Enter
Piston barrel（6）It is interior, piston barrel（6）Return to position, hot cylinder（10）Interior gas volume contracts last, until flexibility is living
Plug（1）Return to original position, hot cylinder（10）And cooling cylinder（7）Interior pressure and piston barrel（6）Interior pressure is balanced again, completes one
The individual cycle；Circulated with this.
The beneficial effects of the present invention are：Using flexible plunger, can the perfect sealing solved between cylinder and piston ask
Topic, it is ensured that in high-voltage operation without refrigerant leakage in cylinder, to reach purpose that motor power and efficiency are not reduced.Can variant
Product formula piston is connected with cylinder, its internal pressure and cylinder internal pressure strongly consistent, therefore variable-volume formula piston does not need high rigidity
Pressure-resistant material, reduces production cost, while reducing gas to promote piston movement to waste interior energy, and then improves gas internal energy
Utilization rate, improve Stirling engine power output.It is cold using heat expansion under the Working medium gas isopiestic state in cylinder barrel
The property of contracting, eliminates the link design between free-piston and crank, it is ensured that the sealing of cylinder；And engine structure is obtained
To simplification, manufacture difficulty reduction.
4th, illustrate
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the partial enlarged drawing of Fig. 1 shoe；
In figure：1st, flexible plunger, 2, sealing flange, 3, bolt A, 4, V-shape piston support, 5, connection sheet, 6, piston cylinder
Body, 7, cooling cylinder, 8, heat abstractor, 9, bolt B, 10, hot cylinder, 11, sealing ring, 12, pressure equalisation hole, 13, shoe, 14,
Elastic end socket.
5th, embodiment
Embodiment 1, a kind of Stirling engine variable-volume formula piston, including flexible plunger（1）, flexible plunger（1）With
Sealing flange（2）It is tightly connected, sealing flange（2）Pass through screw A（3）With cooling cylinder（7）Connection, cooling cylinder（7）Pass through sealing ring
（11）, screw B（9）With hot cylinder（10）It is tightly connected, it is characterised in that：The sealing flange（2）With cooling cylinder（7）Also pass through screw
A（3）It is fixed with V-shape piston support（4）, V-shape piston support（4）Pass through connection sheet（5）With elastic end socket（14）It is fixedly connected, bullet
Property end socket（14）Pass through the shoe being arranged at piston gap（13）With piston barrel（6）It is fixedly connected, piston barrel（6）
On be provided with pressure equalisation hole（12）, the pressure equalisation hole（12）It is arranged on piston barrel（6）Bottom up 2/3rds with
Upper place.
The cooling cylinder（7）On be additionally provided with heat abstractor（8）, the heat abstractor（8）To be fixed on cooling cylinder（7）On dissipate
Backing, fin is made up of heat sink material.
The V-shape piston support（4）There are 2, Central Symmetry is set.
Piston barrel（6）It is made up of heat conduction and resistant to elevated temperatures lightweight material；Elastic end socket（14）For elaxtic seal system
Into；V-shape piston support（4）It is made up of rigid material.
Piston barrel（6）The pressure equalisation hole of upper setting（12）Make gas in piston barrel（6）Interior and hot cylinder（10）It is interior it
Between flow freely.
Piston barrel（6）Outer wall and hot cylinder（10）And cooling cylinder（7）Inwall between gap be less than 10mm.
Claims (6)
1. a kind of Stirling engine variable-volume formula piston, including flexible plunger（1）, flexible plunger（1）With sealing flange（2）
It is tightly connected, sealing flange（2）Pass through screw A（3）With cooling cylinder（7）Connection, cooling cylinder（7）Pass through sealing ring（11）, screw B（9）
With hot cylinder（10）It is tightly connected, it is characterised in that：The sealing flange（2）With cooling cylinder（7）Also pass through screw A（3）It is fixed with V-arrangement
Piston holder（4）, V-shape piston support（4）Pass through connection sheet（5）With elastic end socket（14）It is fixedly connected, elastic end socket（14）It is logical
Cross the shoe being arranged at piston gap（13）With piston barrel（6）It is fixedly connected, piston barrel（6）On be provided with pressure
Balancing hole（12）, the pressure equalisation hole（12）It is arranged on piston barrel（6）Bottom up more than 2/3rds place.
2. a kind of Stirling engine variable-volume formula piston according to claim 1, it is characterised in that：The cooling cylinder
（7）On be additionally provided with heat abstractor（8）, the heat abstractor（8）To be fixed on cooling cylinder（7）On fin, fin is scattered
Hot material is made.
3. a kind of Stirling engine variable-volume formula piston according to claim 1, it is characterised in that：The V-arrangement is lived
Fill in support（4）There are 2, Central Symmetry is set.
4. a kind of Stirling engine variable-volume formula piston according to claim 1, it is characterised in that：Piston barrel
（6）It is made up of heat conduction and resistant to elevated temperatures lightweight material；Elastic end socket（14）It is made up of elaxtic seal；V-shape piston support（4）
It is made up of rigid material.
5. a kind of Stirling engine variable-volume formula piston according to claim 1, it is characterised in that：Piston barrel
（6）The pressure equalisation hole of upper setting（12）Make gas in piston barrel（6）Interior and hot cylinder（10）Flowed freely between interior.
6. a kind of Stirling engine variable-volume formula piston according to claim 1, it is characterised in that：Piston barrel
（6）Outer wall and hot cylinder（10）And cooling cylinder（7）Inwall between gap be less than 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029233.XA CN106337757B (en) | 2016-11-22 | 2016-11-22 | A kind of Stirling engine variable-volume formula piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029233.XA CN106337757B (en) | 2016-11-22 | 2016-11-22 | A kind of Stirling engine variable-volume formula piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106337757A CN106337757A (en) | 2017-01-18 |
| CN106337757B true CN106337757B (en) | 2017-10-24 |
Family
ID=57841487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611029233.XA Expired - Fee Related CN106337757B (en) | 2016-11-22 | 2016-11-22 | A kind of Stirling engine variable-volume formula piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106337757B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921920B (en) * | 2017-03-16 | 2023-09-01 | 浙江大学 | Piston sounder sealed by film |
| CN107401463A (en) * | 2017-08-18 | 2017-11-28 | 肖炀 | A kind of piston of the passive energy storage of double acting |
| CN112963266A (en) * | 2021-03-01 | 2021-06-15 | 贾占东 | Engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505047A (en) * | 1993-11-30 | 1996-04-09 | Sanyo Electric Co., Ltd. | Gas compression/expansion apparatus |
| CN103196254A (en) * | 2012-01-06 | 2013-07-10 | 住友重机械工业株式会社 | Cryogenic refrigerator and displacer |
| CN103814191A (en) * | 2011-05-12 | 2014-05-21 | 住友(Shi)美国低温研究有限公司 | Gas balanced cryogenic expansion engine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4730430B2 (en) * | 2008-12-10 | 2011-07-20 | トヨタ自動車株式会社 | Piston engine |
| JP2014043843A (en) * | 2012-08-28 | 2014-03-13 | Yuji Ikedo | Stirling cycle oscillator |
| CN206175086U (en) * | 2016-11-22 | 2017-05-17 | 肖炀 | Variable volume formula piston of stirling |
-
2016
- 2016-11-22 CN CN201611029233.XA patent/CN106337757B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505047A (en) * | 1993-11-30 | 1996-04-09 | Sanyo Electric Co., Ltd. | Gas compression/expansion apparatus |
| CN103814191A (en) * | 2011-05-12 | 2014-05-21 | 住友(Shi)美国低温研究有限公司 | Gas balanced cryogenic expansion engine |
| CN103196254A (en) * | 2012-01-06 | 2013-07-10 | 住友重机械工业株式会社 | Cryogenic refrigerator and displacer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106337757A (en) | 2017-01-18 |
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| PB01 | Publication | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20191125 Address after: 266200 south of the third floor, No. 168, Ningdong Road, Jimo District, Qingdao, Shandong Province Patentee after: Straw high (Qingdao) energy Co.,Ltd. Address before: 100096 No. 2 Nong Road, Huilongguan, Beijing, Changping District Patentee before: Xiao Yang |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201202 Address after: 266000 Qidi building, 165 Ningdong Road, Jimo District, Qingdao, Shandong Province Patentee after: Straw High Energy Development Co.,Ltd. Address before: 266200 south of the third floor, No. 168, Ningdong Road, Jimo District, Qingdao, Shandong Province Patentee before: Straw high (Qingdao) energy Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
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Effective date of registration: 20210409 Address after: 266200 south side of the third floor, 168 Ningdong Road, Jimo District, Qingdao City, Shandong Province Patentee after: Straw high (Qingdao) energy Co.,Ltd. Address before: 266000 edifice, 165 Ningdong Road, Jimo District, Qingdao City, Shandong Province Patentee before: Straw High Energy Development Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171024 |