CN206175086U - Variable volume formula piston of stirling - Google Patents
Variable volume formula piston of stirling Download PDFInfo
- Publication number
- CN206175086U CN206175086U CN201621251021.1U CN201621251021U CN206175086U CN 206175086 U CN206175086 U CN 206175086U CN 201621251021 U CN201621251021 U CN 201621251021U CN 206175086 U CN206175086 U CN 206175086U
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- volume formula
- cooling cylinder
- barrel
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a variable volume formula piston of stirling, the utility model relates to a stirling field, its structure is: including flexible plunger, flexible plunger and sealed flange seal are connected, and the sealing flange passes through screw A and cold cylinder, and cold cylinder passes through sealing washer, screw B and hot jar sealing connection, its characterized in that: the sealing flange still is fixed with V -arrangement piston support through screw A with cold cylinder, and V -arrangement piston support passes through connection piece and elastic end enclosure fixed connection, and elastic end enclosure passes through to set up antiskid and the piston barrel body fixed connection at the piston opening part, the last piston support 0 that is provided with of piston barrel body, pressure equalizing hole sets up and up locates more than the two -thirds bottom piston barrel body. The utility model has the advantages of pressure is unanimous in its internal pressure and the cylinder, and consequently variable volume formula piston does not need the withstand voltage material of high rigidity, and reduction in production cost has reduced gaseously for promoting the extravagant internal energy of piston motion simultaneously, and then improves the utilization ratio of gaseous internal energy.
Description
First, technical field
This utility model is related 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, and when the engine is running, free-piston is in power piston
90 degree of phase angle operations, to ensure hot cylinder and the Carnot cycle in cooling cylinder；Because Stirling engine with free piston is to airtight
Property have high demands, therefore power piston is also required to be fitted close to reduce refrigerant leakage at the connecting rod of free-piston and cylinder；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, apparatus expensive, complex structure, and sealing effectiveness is not obvious, its sealing when engine high pressure runs
Property there is no guarantee that positive confinement.
3rd, utility model content
A kind of Stirling engine variable-volume formula piston, including flexible plunger are provided for the problems referred to above this utility model
（1）, flexible plunger（1）With sealing flange（2）It is tightly connected, sealing flange（2）By screw A（3）With cooling cylinder（7）, cooling cylinder（7）
By 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）By connection sheet（5）With elastic end socket（14）
It is fixedly connected, elastic end socket（14）By 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, centrosymmetry is arranged.
Piston barrel（6）By heat conduction and resistant to elevated temperatures lightweight material is made；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）Gas is made in piston barrel（6）Between in interior and cylinder certainly
By flowing.
Piston barrel（6）Outer wall and hot cylinder（10）And cooling cylinder（7）Inwall between gap be less than 10mm.
Operation principle of the present utility model is：When electromotor is shut down, flexible plunger（1）It is in an intermediate position, piston barrel
（6）In hot cylinder（10）And cooling cylinder（7）Centre, piston barrel（6）Interior pressure and hot cylinder（10）And cooling cylinder（7）Interior pressure phase
Together；When hot cylinder（10）After being heated, hot gas rises, by pressure equalisation hole（12）Into piston barrel（6）It is interior, piston barrel
（6）Interior pressure increases, piston barrel（6）Internal volume expands, and moves downward, now cooling cylinder（7）With flexible plunger（1）It is interior
Portion's cavity space increases, and reduced pressure promotes flexible plunger（1）Decline, piston barrel（6）Volume is received after interior gas completes
Contracting, flows out piston barrel（6）Into hot cylinder（10）It is interior, piston barrel（6）Original position is returned to, because heating continues and gas
Backflow, hot cylinder（10）And cooling cylinder（7）It is intrinsic pressure to insist on height of continuing rising, promote flexible plunger（1）Original position is moved up to, now
Cooling cylinder（7）Space increases, and reduced pressure promotes piston barrel（6）Move upwards, volume contraction, gas passes through pressure equalisation hole
（12）Enter into hot cylinder（10）And cooling cylinder（7）It is interior, make cooling cylinder（7）Intrinsic pressure power continues to increase, and promotes flexible plunger（1）Continue up
Motion, cooling cylinder（7）With flexible plunger（1）Interior gas complete after volume contraction, gas pass through pressure equalisation hole（12）Into
To piston barrel（6）It is interior, piston barrel（6）Return to position, hot cylinder（10）Interior gas volume contracts last, until flexibility
Piston（1）Return to original position, hot cylinder（10）And cooling cylinder（7）Interior pressure and piston barrel（6）Interior pressure is balanced again, is completed
A cycle；Circulated with this.
The beneficial effects of the utility model are：Using flexible plunger, can be with close between perfect solution cylinder and piston
Envelope problem, it is ensured that in high-voltage operation without refrigerant leakage in cylinder, to reach the purpose that motor power and efficiency are not reduced.Can
Variable volume formula piston is connected with cylinder, its internal pressure and the intrinsic pressure strongly consistent of cylinder, therefore variable-volume formula piston need not height
Rigid pressure-resistant material, reduces production cost, while reduce gas wasting interior energy to promote piston movement, and then improves gas
The utilization rate of interior energy, improves the output of Stirling engine.Using heat under the Working medium gas isopiestic state in cylinder barrel
The property of swollen shrinkage, eliminates the link design between free-piston and crank, it is ensured that the sealing of cylinder；And electromotor is tied
Structure is simplified, and manufacture difficulty is reduced.
4th, illustrate
Fig. 1 is this utility model structural representation；
Fig. 2 is the shoe of Fig. 1（13）Partial enlarged drawing；
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, specific 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）By screw A（3）With cooling cylinder（7）, cooling cylinder（7）By sealing ring（11）, spiral shell
Nail 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）Gu
Surely there is V-shape piston support（4）, V-shape piston support（4）By connection sheet（5）With elastic end socket（14）It is fixedly connected, elastic end socket
（14）By the shoe being arranged at piston gap（13）With piston barrel（6）It is fixedly connected, piston barrel（6）Upper setting
There is pressure equalisation hole（12）, the pressure equalisation hole（12）It is arranged on piston barrel（6）Bottom up more than 2/3rds 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, centrosymmetry is arranged.
Piston barrel（6）By heat conduction and resistant to elevated temperatures lightweight material is made；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）Gas is made in piston barrel（6）Between in interior and cylinder certainly
By flowing.
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）By screw A（3）With cooling cylinder（7）, cooling cylinder（7）By sealing ring（11）, screw B（9）With heat
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）By connection sheet（5）With elastic end socket（14）It is fixedly connected, elastic end socket（14）By setting
Put the shoe at piston gap（13）With piston barrel（6）It is fixedly connected, piston barrel（6）On to be provided with pressure balanced
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
Plug support（4）There are 2, centrosymmetry is arranged.
4. a kind of Stirling engine variable-volume formula piston according to claim 1, it is characterised in that：Piston barrel
（6）By heat conduction and resistant to elevated temperatures lightweight material is made；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）Gas is made in piston barrel（6）Flow freely between in interior and cylinder.
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 |
|---|---|---|---|
| CN201621251021.1U CN206175086U (en) | 2016-11-22 | 2016-11-22 | Variable volume formula piston of stirling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621251021.1U CN206175086U (en) | 2016-11-22 | 2016-11-22 | Variable volume formula piston of stirling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206175086U true CN206175086U (en) | 2017-05-17 |
Family
ID=58686643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621251021.1U Withdrawn - After Issue CN206175086U (en) | 2016-11-22 | 2016-11-22 | Variable volume formula piston of stirling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206175086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337757A (en) * | 2016-11-22 | 2017-01-18 | 肖炀 | Variable-volume Piston of Stirling Engine |
-
2016
- 2016-11-22 CN CN201621251021.1U patent/CN206175086U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106337757A (en) * | 2016-11-22 | 2017-01-18 | 肖炀 | Variable-volume Piston of Stirling Engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170517 Effective date of abandoning: 20171024 |