CN107401463A - A kind of piston of the passive energy storage of double acting - Google Patents
A kind of piston of the passive energy storage of double acting Download PDFInfo
- Publication number
- CN107401463A CN107401463A CN201710713294.6A CN201710713294A CN107401463A CN 107401463 A CN107401463 A CN 107401463A CN 201710713294 A CN201710713294 A CN 201710713294A CN 107401463 A CN107401463 A CN 107401463A
- Authority
- CN
- China
- Prior art keywords
- piston
- piston barrel
- spring
- cylinder
- cooling cylinder
- 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.)
- Pending
Links
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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/058—Alloys based on nickel or cobalt based on nickel with chromium without Mo and W
-
- 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
- F02G1/0535—Seals or sealing arrangements
-
- 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
- F02G2253/00—Seals
- F02G2253/02—Reciprocating piston seals
-
- 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
- F02G2270/00—Constructional features
- F02G2270/40—Piston assemblies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Closures For Containers (AREA)
Abstract
A kind of piston of the passive energy storage of double acting, the present invention relates to Stirling engine field, its structure is：Including flexible plunger, flexible plunger is tightly connected with sealing flange, sealing flange is connected with cooling cylinder, cooling cylinder is tightly connected with hot cylinder, the sealing flange is fixedly connected with cooling cylinder by V-shape piston support, connection sheet with elastic end socket, and elastic end socket is fixedly connected by shoe with piston barrel, and pressure equalisation hole is provided with piston barrel, spring fitting device is provided with hot cylinder, spring is provided between the bottom of piston barrel and spring fitting device.The beneficial effects of the present invention are：When engine is shut down, spring plays a supportive role, and prevents piston barrel from being deformed because being pulled its own gravity, and then increase the service life；When engine is run, when piston barrel moves downward, spring stores potential energy by compression, discharges elastic potential energy when piston barrel moves upwards, and provide bigger power for piston barrel moves upwards, improves engine efficiency.
Description
First, technical field
The present invention relates to Stirling engine field, the piston of more particularly to a kind of passive energy storage of double acting.
2nd, background technology
A kind of Stirling engine variable-volume formula piston of patent of invention, Application No. 201611029233.X are solved well
Stirling engine with free piston cooling cylinder piston manufacture difficulty is big, it is high to material requirements the problems such as, reduce engine piston
Manufacture difficulty, while improve engine efficiency.The variable-volume piston designed in the patent because by V-shape piston support and
The elastic end socket on flexible plunger top is connected, and piston without other support members causes that bullet can be caused during engine off condition
Property the long-term stress of end socket and deform, influence engine use, shorten engine life, elastic end socket can be caused thorough under extreme case
Bottom is damaged, and then causes piston loss of function.And when engine is run, elastic end socket also easily fails because of fatigue, causes
Piston thoroughly damages.
3rd, the content of the invention
The present invention provides a kind of piston of the passive energy storage of double acting, 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
Circle（13）, 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 spiral shell
Follow closely 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（16）It is fixedly connected,
Elastic end socket（16）Pass through the shoe being arranged at piston gap（15）With piston barrel（6）It is fixedly connected, piston barrel
（6）On be provided with pressure equalisation hole（14）, the pressure equalisation hole（14）It is arranged on piston barrel（6）Bottom up 2/3rds
At above, hot cylinder（10）Inside it is provided with spring fitting device（11）, piston barrel（6）Bottom and spring fitting device（11）It
Between be provided with spring（12）.
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 are made up of heat sink material.
The V-shape piston support（4）There are 2, center symmetric setting.
Piston barrel（6）It is made up of heat conduction and resistant to elevated temperatures lightweight material；Elastic end socket（16）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（14）Make gas in piston barrel（6）Interior and hot cylinder（10）With it is cold
Cylinder（7）Flowed freely between interior.
Piston barrel（6）Outer wall and hot cylinder（10）And cooling cylinder（7）Inwall between gap be less than 10mm.Spring is fixed
Device（11）With hot cylinder（10）Inwall bottom is fixed.
Spring（12）It is made using exotic material.
The exotic material is AlloyX750 alloys, and AlloyX750 alloys are nickel base superalloys, below 980 DEG C
With good corrosion-resistant and antioxygenic property, less than 800 DEG C have higher intensity, and less than 540 DEG C have preferable resistance to pine
Relaxation performance, while also there is good forming property and welding performance；The alloy is mainly for the manufacture of aero-engine at 800 DEG C
Work below and the higher resistance to relaxation of desired strength plane spring and helical spring；It can also be used to manufacture steam turbine turbo blade
Deng part；The kind that can be supplied has sheet material, band, bar, forging, annular element, silk material and tubing.The chemical group of exotic material
Part it is： C：≤0.08 、Cr：14.0~17.0, Ni+Co： ≥70.0 、Al：0.40~1.00, Ti：2.25~2.75,
Fe：5.00~9.00, Nb+Ta：0.70~1.20, Co：≤1、 Mn：≤1 、Si：≤0.5 、S ：≤0.01 、Cu ：≤
0.5、 P ：≤0.015.Similar High-temperature resistant alloy material also have GH 4169, GH 4145,90,99, Monel K-500,
Inconel 718, Inconel X-750,631 etc..
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（14）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, and pressure reduces, and 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, due to heating continuation 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, and pressure reduces, and promotes piston barrel（6）Motion, volume contraction, gas pass through pressure equalisation hole upwards（14）
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 pass through pressure equalisation hole（14）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 balances again, completes one
The individual cycle；Circulated with this；When engine is shut down, spring（12）Due to by piston barrel（6）The effect of gravity, is compressed to first
Section, and support piston barrel（6）, now piston barrel（6）Piston elastic end socket（16）In complete relaxation state；Work as hair
When motivation is run, piston barrel（6）Because of hot cylinder（10）And cooling cylinder（7）Interior pressure change moves downward, due to now pressure change
More than spring（12）Second stage elastic force, therefore spring（12）Compressed, piston barrel（6）A kinetic energy part can be converted into
Spring（12）Elastic potential energy store；Work as piston barrel（6）Upwards during motion, spring（12）The elastic potential energy of storage is released
Put, promote piston barrel（6）Accelerate motion upwards；Due to spring（12）Normal length be more than piston barrel（6）Maximum row
Journey, so working as piston barrel（6）When rising to maximum displacement point, spring（12）Still with piston barrel（6）Contact.Spring（12）
It is made, will not be failed because hot cylinder temperature is too high of exotic material.Spring fitting device（11）With hot cylinder（10）Inwall bottom
Portion is fixed.The beneficial effects of the present invention are：Using flexible plunger, can the perfect sealing solved between cylinder and piston ask
Topic, ensure in high-voltage operation in cylinder without refrigerant leakage, with the purpose for reaching motor power and efficiency does not reduce.Can variant
Product formula piston connects with cylinder, its internal pressure and cylinder internal pressure strongly consistent, therefore variable-volume formula piston does not need high rigidity
Pressure-resistant material, production cost is reduced, simultaneously because piston weight mitigates, it is interior to promote piston movement to waste to reduce gas
Can, and then the utilization rate of gas internal energy is improved, improve the power output of Stirling engine.Utilize the working medium gas in cylinder barrel
The property expanded with heat and contract with cold under body isopiestic state, the link design between free-piston and crank is eliminated, ensure that the close of cylinder
Feng Xing；And engine structure is simplified, manufacture difficulty reduces；Secondly, first, in engine off condition, spring can be with
Play a supporting role, prevent piston barrel from being deformed because being pulled its own gravity, and then increase the service life；Second, starting
When machine is run, when piston barrel moves downward, spring is compressed, and can store elastic potential energy, is transported upwards in piston barrel
Elastic potential energy is discharged when dynamic, provide bigger power for piston barrel moves upwards, improves engine efficiency；3rd, spring
Gas can be assisted to reduce to promote piston barrel motion to waste interior energy, further improve engine efficiency.
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 barrel, 7,
Cooling cylinder, 8, heat abstractor, 9, bolt B, 10, hot cylinder, 11, spring fitting device, 12, spring, 13, sealing ring, 14, pressure it is balanced
Hole, 15, shoe, 16, elastic end socket.
5th, embodiment
Embodiment 1, a kind of piston of the passive energy storage of double acting, 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（13）, 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（16）It is fixedly connected, elastic end socket（16）
Pass through the shoe being arranged at piston gap（15）With piston barrel（6）It is fixedly connected, piston barrel（6）On be provided with pressure
Power balancing hole（14）, the pressure equalisation hole（14）It is arranged on piston barrel（6）Up more than 2/3rds locate bottom.
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 are made up of heat sink material.
The V-shape piston support（4）There are 2, center symmetric setting.
Piston barrel（6）It is made up of heat conduction and resistant to elevated temperatures lightweight material；Elastic end socket（16）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（14）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.
Spring（12）It is made, will not be failed because hot cylinder temperature is too high of exotic material.Spring fitting device（11）
With hot cylinder（10）Inwall bottom is fixed.
Claims (2)
1. a kind of piston of the passive energy storage of double acting, including flexible plunger（1）, flexible plunger（1）With sealing flange（2）Sealing
Connection, sealing flange（2）Pass through screw A（3）With cooling cylinder（7）Connection, cooling cylinder（7）Pass through sealing ring（13）, 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）Pass through connection sheet（5）With elastic end socket（16）It is fixedly connected, elastic end socket（16）By setting
Put the shoe at piston gap（15）With piston barrel（6）It is fixedly connected, piston barrel（6）On be provided with pressure equilibrium
Hole（14）, the pressure equalisation hole（14）It is arranged on piston barrel（6）Bottom up more than 2/3rds is located, hot cylinder（10）Inside set
It is equipped with spring fitting device（11）, piston barrel（6）Bottom and spring fitting device（11）Between be provided with spring（12）.
A kind of 2. piston of the passive energy storage of double acting, it is characterised in that：Spring（12）It is made using exotic material, it is described resistance to
High-temperature material is AlloyX750 alloys, GH 4169, GH 4145,90,99, Monel K-500, Inconel 718, Inconel
X-750,631 alloys.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713294.6A CN107401463A (en) | 2017-08-18 | 2017-08-18 | A kind of piston of the passive energy storage of double acting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710713294.6A CN107401463A (en) | 2017-08-18 | 2017-08-18 | A kind of piston of the passive energy storage of double acting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107401463A true CN107401463A (en) | 2017-11-28 |
Family
ID=60396825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710713294.6A Pending CN107401463A (en) | 2017-08-18 | 2017-08-18 | A kind of piston of the passive energy storage of double acting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107401463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963266A (en) * | 2021-03-01 | 2021-06-15 | 贾占东 | Engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004340477A (en) * | 2003-05-15 | 2004-12-02 | Sharp Corp | Stirling engine and its manufacturing method |
| CN106337757A (en) * | 2016-11-22 | 2017-01-18 | 肖炀 | Variable-volume Piston of Stirling Engine |
| CN207750145U (en) * | 2017-08-18 | 2018-08-21 | 肖炀 | A kind of piston of the passive energy storage of double acting |
-
2017
- 2017-08-18 CN CN201710713294.6A patent/CN107401463A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004340477A (en) * | 2003-05-15 | 2004-12-02 | Sharp Corp | Stirling engine and its manufacturing method |
| CN106337757A (en) * | 2016-11-22 | 2017-01-18 | 肖炀 | Variable-volume Piston of Stirling Engine |
| CN207750145U (en) * | 2017-08-18 | 2018-08-21 | 肖炀 | A kind of piston of the passive energy storage of double acting |
Non-Patent Citations (1)
| Title |
|---|
| 金东寒等: "《斯特林发动机技术》", 哈尔滨工程大学出版社, pages: 245 - 246 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963266A (en) * | 2021-03-01 | 2021-06-15 | 贾占东 | Engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20140086772A1 (en) | Actuator element and an actuator for generating a force and/or a movement | |
| US6694731B2 (en) | Stirling engine thermal system improvements | |
| CN108138694B (en) | Double-acting expansion cylinder with adaptive support | |
| KR20170067708A (en) | Flexure apparatuses, linear rotary converters, and systems | |
| CN107401463A (en) | A kind of piston of the passive energy storage of double acting | |
| CN207750145U (en) | A kind of piston of the passive energy storage of double acting | |
| US10087883B2 (en) | Stirling engine with regenerator internal to the displacer piston and integral geometry for heat transfer and fluid flow | |
| CN106677964A (en) | Multi-stage energy storage pressure-limiting circulation drive turbine power generation device provided with vibration isolating pad | |
| CN106337757B (en) | A kind of Stirling engine variable-volume formula piston | |
| Qiu et al. | Free-piston stirling engine generators | |
| US8919117B2 (en) | Energy cell operable to generate a pressurized fluid via bladder means and a phase change material | |
| CN101560928B (en) | Heat engine with internal heater | |
| CN107762660B (en) | Heat returning structure and Stirling engine comprising same | |
| CN201650492U (en) | Balanced-piston type thermoacoustic Stirling linear generator | |
| JP2020529550A (en) | Efficient heat recovery engine | |
| CN206175086U (en) | Variable volume formula piston of stirling | |
| CN106321280B (en) | A kind of flexible plunger of Stirling engine | |
| US20220120235A1 (en) | Improved stirling engine design and assembly | |
| US11401861B1 (en) | Pumped heat energy storage system with annular ducting arrangement | |
| CN216477603U (en) | Novel temperature difference engine | |
| CN106089487A (en) | A kind of welding bellows formula heat engine acting unit | |
| JPH0256505B2 (en) | ||
| CN1940276A (en) | Heater component of thermodynamic machine | |
| CN117693654A (en) | Stirling engine with near isothermal working space | |
| JPS60207898A (en) | Heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |