CN115773189A - Double-acting Stirling engine piston sealing device - Google Patents
Double-acting Stirling engine piston sealing device Download PDFInfo
- Publication number
- CN115773189A CN115773189A CN202310093021.1A CN202310093021A CN115773189A CN 115773189 A CN115773189 A CN 115773189A CN 202310093021 A CN202310093021 A CN 202310093021A CN 115773189 A CN115773189 A CN 115773189A
- Authority
- CN
- China
- Prior art keywords
- piston
- sealing ring
- sealing
- double
- stirling engine
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 173
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 description 4
- 238000013475 authorization Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a double-acting Stirling engine piston sealing device, which relates to the technical field of Stirling engines and comprises a piston shell, wherein a cylinder body is arranged on the outer wall of one side of the piston shell through a bolt, a piston rod sealing seat is arranged at one end of the cylinder body through a bolt, a piston rod is inserted in the center of one end of the piston rod sealing seat in a sliding manner, a piston head base is inserted at one end of the piston rod, a piston is sleeved outside the piston rod and is clamped with the piston head base, a positioning ring is clamped inside the piston head base, and a piston head which is mutually contacted with the piston head base is clamped on the outer wall of the side surface of the positioning ring; the two sealing rings are symmetrically arranged, so that one sealing ring is always used when the piston reciprocates, and the aim of sealing the upper end and the lower end of the piston is fulfilled; and the opening sealing ring is adopted to compress the closing sealing ring, so that the closing sealing ring cannot be folded due to interference fit with the cylinder body, and the sealing effect cannot be achieved.
Description
Technical Field
The invention relates to the technical field of Stirling engines, in particular to a double-acting Stirling engine piston sealing device.
Background
The stirling engine is an external heating closed circulation piston engine, is filled with the working medium of a constant volume in stirling engine confined cylinder, and the upper portion of piston is the hot chamber in the cylinder, and the lower part of piston is the cold chamber in the cylinder, and the hot chamber mainly plays the expanding action, and the cold chamber mainly plays the compression, drives the piston motion and does work, and the stirling engine system divide into 5 component parts usually: hot chamber, heater, regenerator, cooler and cold chamber.
For example, the authorization notice number is CN101349215B, and the authorization notice date is 2013-12-18. The Stirling engine consists of four identical mechanical structures (100, 200, 300 and 400) of a Stirling thermodynamic cycle system; the regenerator (106) in the mechanical structure (100) of the first Stirling thermodynamic cycle system is arranged on the top of a piston (107) and moves along with the piston (107), a cooler (127) is positioned below a cold chamber cylinder (112), and a piston rod (108) penetrates through a piston rod guide pipe (118) on the cooler (127) and can slide in the piston rod guide pipe (118). The above-described mechanical configuration improvements reduce the size, weight and manufacturing cost of the double-acting stirling engine and the heat loss from the regenerator (106) housing (131), improving the efficiency and life of the double-acting stirling engine. The double-acting Stirling engine can use solid, liquid and gaseous fuels, renewable biomass fuels or fuels in garbage, solar energy and other heat sources, and has the characteristics of wide range of fuel and heat source sources, high heat efficiency and environmental friendliness. It will be widely used in future social production practice.
The piston in the prior art does high-frequency reciprocating motion, the position of the sealing ring in the ring groove is changed up and down once in a cycle, the sealing performance is changed repeatedly once, and when the contact surface of the sealing ring in the ring groove is changed, a serious working medium leakage phenomenon occurs, and the cycle characteristic is influenced.
Disclosure of Invention
The invention aims to provide a double-acting Stirling engine piston sealing device to solve the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a two effect stirling engine piston sealing device, includes the piston shell, install the cylinder body through the bolt on the outer wall of piston shell one side, and cylinder body one end installs piston rod seal through the bolt, piston rod seal one end center department slides and pegs graft and has the piston rod, and piston rod one end pegs graft and have the piston head base, the piston rod outside has been cup jointed the piston, and piston head base joint are in the same place, the inside joint of piston head base has the holding ring, and the joint has the piston head with piston head base mutual contact on the holding ring side outer wall, piston side outer wall is close to both ends department and has all seted up left slip annular, right slip annular, and left slip annular, right slip annular inside embedding respectively have slip ring one, slip ring two.
Furthermore, a left sealing ring groove, a middle groove and a right sealing ring groove which are distributed in a horizontal structure are formed in the outer wall of the side face of the piston, and an expansion ring I, an opening sealing ring I and a closing sealing ring I are embedded into the left sealing ring groove.
Furthermore, the first opening sealing ring and the first closing sealing ring are stacked together at the left and right sides of the mounting position in the left sealing ring groove, and fine holes of the middle groove are formed in the inner walls of the two sides of the middle groove.
Furthermore, an expansion ring II, a closed sealing ring II and an open sealing ring II are embedded into the right sealing ring groove, and the open sealing ring II and the closed sealing ring II are stacked together at the left and right sides of the installation position in the right sealing ring groove.
Furthermore, the outer wall of one side of the piston head base, which is close to the bottom, is provided with an inserting hole, and an air guide bolt is inserted into the inserting hole.
Furthermore, one end of the air guide bolt is provided with an air guide bolt capillary hole, and the piston head is communicated with the piston through the air guide bolt capillary hole.
Furthermore, a hot cavity is formed in the piston shell, and the piston head is inserted in the hot cavity in a sliding mode.
Furthermore, a cold cavity is formed in the cylinder body, and the piston is inserted in the cold cavity in a sliding mode.
Furthermore, sealing surfaces I are arranged on the inner walls of the two sides of the left sealing ring groove, and sealing surfaces II are arranged on the inner walls of the two sides of the right sealing ring groove.
In the technical scheme, the double-acting Stirling engine piston sealing device provided by the invention (1) adopts two sealing rings which are symmetrically arranged, so that one sealing ring is always used when the piston reciprocates, and the aim of sealing the upper end and the lower end of the piston is fulfilled; (2) The invention adopts the open sealing ring to press the closed sealing ring, so that the closed sealing ring cannot be folded due to interference fit with the cylinder body, and the sealing effect cannot be achieved; (3) In order to enable the open sealing ring to better compress the closed sealing ring, the expansion ring is adopted and radially props against the open sealing ring, so that the open sealing ring is radially expanded and better aligned with the closed sealing ring, and the closed sealing ring is compressed, and the closed sealing ring is prevented from wrinkling; (4) In order to balance the pressure inside and outside the piston head, the air guide bolt is adopted, the capillary hole is arranged in the air channel of the air guide bolt, the capillary hole not only meets the requirement that air enters the inner cavity of the piston head, but also plays the role of a throttle valve, the air entering and exiting the inner cavity of the piston head is reduced, and therefore the heat loss and the power loss are reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic perspective view of a piston sealing device for a double-acting stirling engine according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a piston assembly provided in an embodiment of the double-acting stirling engine piston seal arrangement of the present invention.
Fig. 3 is a schematic structural diagram of a provided in an embodiment of the double-acting stirling engine piston seal arrangement of the present invention.
Fig. 4 is a schematic structural diagram of a piston sealing device B of the double-acting stirling engine according to the embodiment of the invention.
Description of the reference numerals:
1. a piston housing; 2. a piston head; 3. a positioning ring; 4. a piston head base; 5. a cylinder body; 6. a piston; 7. a piston rod; 8. a piston rod seal seat; 9. a thermal chamber; 10. a cold chamber; 11. a first sliding ring; 12. a first expansion ring; 13. a first opening sealing ring; 14. a first closed sealing ring; 15. an intermediate tank; 16. a second expansion ring; 17. a second closed sealing ring; 18. a second opening sealing ring; 19. a second sliding ring; 20. fine holes of the middle groove; 21. a left sliding ring groove; 22. a left seal ring groove; 23. a right seal ring groove; 24. a right sliding ring groove; 25. a first sealing surface; 26. a second sealing surface; 27. inserting holes; 28. an air guide bolt; 29. air guide bolt capillary.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the double-acting stirling engine piston sealing device provided by the embodiment of the invention comprises a piston housing 1, wherein a cylinder body 5 is installed on the outer wall of one side of the piston housing 1 through a bolt, a piston rod sealing seat 8 is installed at one end of the cylinder body 5 through a bolt, a piston rod 7 is inserted in the center of one end of the piston rod sealing seat 8 in a sliding manner, a piston head base 4 is inserted at one end of the piston rod 7, a piston 6 is sleeved outside the piston rod 7, the piston 6 and the piston head base 4 are clamped together, a positioning ring 3 is clamped inside the piston head base 4, a piston head 2 which is in mutual contact with the piston head base 4 is clamped on the outer wall of the side face of the positioning ring 3, a left sliding ring groove 21 and a right sliding ring groove 24 are respectively formed in the outer wall of the side face of the piston 6, and a first sliding ring 11 and a second sliding ring 19 are respectively embedded inside the left sliding ring groove 21 and the right sliding ring groove 24.
Specifically, in this embodiment, including piston shell 1, install cylinder body 5 through the bolt on the outer wall of piston shell 1 one side, and cylinder body 5 one end installs piston rod seal receptacle 8 through the bolt, piston rod seal receptacle 8 one end center department slides and pegs graft there is piston rod 7, and piston rod 7 one end pegs graft there is piston head base 4, piston rod 7 outside has cup jointed piston 6, and piston 6 and piston head base 4 joint together, piston head base 4 inside joint has holding ring 3, and the joint has piston head 2 with piston head base 4 mutual contact on the outer wall of holding ring 3 side, piston head 2, piston head base 4, piston 6 can constitute piston assembly, piston 6 side outer wall is close to both ends department and has all seted up left sliding ring groove 21, right sliding ring groove 24, and left sliding ring groove 21, right sliding ring groove 24 inside has embedded into respectively slip ring one 11, slip ring two 19, slip ring one 11, slip ring two 19 and the cylinder body in close contact, play the effect of direction, when making piston assembly reciprocating in the cylinder body, do not take place the skew.
In another embodiment of the present invention, as shown in fig. 2, the outer wall of the side surface of the piston 6 is provided with a left sealing ring groove 22, a middle groove 15 and a right sealing ring groove 23 which are distributed in a horizontal structure, and an expansion ring I12, an opening sealing ring I13 and a closing sealing ring I14 are embedded in the left sealing ring groove 22, when the expansion ring I12, the opening sealing ring I13 and the closing sealing ring I14 are installed in the left sealing ring groove 22, symmetrically arranged, the expansion ring I12 is arranged at the innermost part of the left sealing ring groove 22, symmetrically arranged about the middle groove 15 and opened outwards, the split sealing ring I13 is arranged at the outer side of the expansion ring I12, symmetrically arranged about the middle groove 15 and far away from the sealing surface I25, the inner diameter of the expansion ring I12 is smaller than the diameter of the left sealing ring groove 22, when the expansion ring one 12 is fitted into the left seal ring groove 22, the outer diameter of the expansion ring one 12 becomes large, thereby pushing the split sealing ring I13 to expand along the radial direction, aligning the split sealing ring I13 with the closed sealing ring I14, contacting the split sealing ring I13 with the inner wall surface of the cylinder body 5, when the split sealing ring I13 is installed, the opening is installed in a staggered way by 180 degrees, the installation positions of the opening sealing ring I13 and the closing sealing ring I14 in the left sealing ring groove 22 are stacked together from left to right, the arrangement purposes of the opening sealing ring I13 and the closing sealing ring I14 are to prevent gas from flowing between the hot cavity 9 and the cold cavity 10, in order to achieve the sealing purpose, the friction loss between the opening sealing ring I13 and the closing sealing ring I14 and the inner wall of the cylinder body 5 is inevitably generated, the thickness of the closing sealing ring I14 is increased to achieve better sealing effect, however, the frictional loss between the first closed-end seal ring 14 and the inner wall of the cylinder 5 increases, so that it is necessary to balance the relationship between the two, and an appropriate thickness of the first closed-end seal ring 14 is taken.
In another embodiment of the present invention, as shown in fig. 2, the installation positions of the first open sealing ring 13 and the first closed sealing ring 14 in the left sealing ring groove 22 are stacked left and right, and the inner walls of the middle groove 15 are both provided with middle groove pores 20.
In another embodiment of the present invention, as shown in fig. 4, the second expansion ring 16, the second closed sealing ring 17 and the second open sealing ring 18 are embedded in the right sealing ring groove 23, and the second open sealing ring 18 and the second closed sealing ring 17 are stacked in the right sealing ring groove 23 at left and right positions, when the second expansion ring 16, the second open sealing ring 17 and the second closed sealing ring 18 are mounted in the right sealing ring groove 23, they are arranged symmetrically, the second expansion ring 16 is mounted in the right sealing ring groove 23 at the innermost position, symmetrically with respect to the middle groove 15, and is opened outward, the second open sealing ring 18 is mounted at the outer side of the second expansion ring 16, symmetrically with respect to the middle groove 15, and away from the second sealing surface 26, the inner diameter of the second expansion ring 16 is smaller than the diameter of the right sealing ring groove 23, so that when the second expansion ring 16 is mounted in the right sealing ring groove 23, the outer diameter of the second expansion ring 16 is enlarged, thereby pushing the second open sealing ring 18 to expand radially, so that the second open sealing ring 18 and the second closed sealing ring 18 are aligned with the second closed sealing ring 17, the sealing ring 18 and the inner wall of the cylinder body are in order to prevent the loss of the closed sealing ring 17, and the loss of the cylinder body, the cylinder, the loss caused by friction, the loss of the sealed cylinder.
In another embodiment provided by the present invention, as shown in fig. 3, an insertion hole 27 is formed on an outer wall of one side of the piston head base 4 near the bottom, and an air guide bolt 28 is inserted into the insertion hole 27.
In another embodiment provided by the invention, as shown in fig. 3, one end of the air guide bolt 28 is provided with an air guide bolt capillary hole 29, an air channel is arranged inside the air guide bolt 28 along the axis of the air guide bolt 28, the air channel is variable-diameter, the air guide bolt capillary hole 29 is arranged at the variable-diameter position, and the air guide bolt capillary hole 29 plays a role of a throttle valve, so that when air flows through the air guide bolt capillary hole 29, a pressure difference is established, and the air entering and exiting the inner cavity of the piston head 2 is reduced, thereby reducing the heat loss caused by the air entering and exiting the inner cavity of the piston head 2; meanwhile, when the piston assembly moves rightwards, the gas in the hot cavity 9 expands to push the piston assembly to move rightwards to do work outwards, at the moment, the first closed sealing ring 14 in the left sealing ring groove 22 is separated from the first sealing surface 25 and does not play a sealing role, and the gas enters the inner cavity of the piston head 2 through the middle groove fine hole 20 and the air guide bolt capillary hole 29, so that the power loss is caused; due to the existence of the air guide bolt capillary holes 29, the air entering the inner cavity of the piston head 2 can be reduced, so that the power loss is reduced, and the piston head 2 is communicated with the piston 6 through the air guide bolt capillary holes 29.
In another embodiment provided by the invention, as shown in fig. 1, a hot chamber 9 is formed in the piston housing 1, and the piston head 2 is inserted in the hot chamber 9 in a sliding manner.
In another embodiment provided by the invention, a cold cavity 10 is formed in the cylinder 5, and the piston 6 is inserted in the cold cavity 10 in a sliding manner.
In another embodiment of the present invention, as shown in fig. 1, the inner walls of the left sealing ring groove 22 are provided with first sealing surfaces 25, and the inner walls of the right sealing ring groove 23 are provided with second sealing surfaces 26.
The working principle is as follows: when the device is used, when a piston assembly consisting of the piston head 2, the piston head base 4 and the piston 6 moves leftwards, the first closed sealing ring 14 in the left sealing ring groove 22 is in close contact with the first sealing surface 25, the first expansion ring 12 pushes against the first open sealing ring 13 to expand along the radial direction, so that the first open sealing ring 13 is aligned with the first closed sealing ring 14, the first open sealing ring 13 is in contact with the inner wall surface of the cylinder body 5, meanwhile, the first open sealing ring 13 is tightly pressed on the first closed sealing ring 14, so that the first closed sealing ring 14 is kept flat and smooth, wrinkles are avoided, and the first sealing ring is in close contact with the first sealing surface 25, so that the sealing effect is achieved, at the moment, the second closed sealing ring 17 in the right sealing ring groove 23 is separated from the second sealing surface 26 and does not play a sealing role, working medium gas in the cold cavity 10 enters the cavity of the piston 6 through the fine holes 20 of the middle groove, and then enters the cavity of the piston head 2 through a gas channel of the gas guide bolt 28, so that the pressure difference between the inside and the outside of the piston head 2 is reduced, and the pressure of the piston head 2 is not deformed due to overlarge; when the piston assembly composed of the piston head 2, the piston head base 4 and the piston 6 moves rightwards, the second closed sealing ring 17 in the right sealing ring groove 23 is in close contact with the second sealing surface 26, the second expansion ring 16 pushes against the second open sealing ring 18 to expand along the radial direction, so that the second open sealing ring 18 is aligned with the second closed sealing ring 17, the second open sealing ring 18 is in contact with the inner wall surface of the cylinder 5, meanwhile, the second open sealing ring 18 is tightly pressed on the second closed sealing ring 17, the second closed sealing ring 17 keeps flat and is in close contact with the second sealing surface 26, wrinkles are avoided, and the sealing effect is achieved.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and are not to be construed as limiting the scope of the invention.
Claims (9)
1. A double-acting stirling engine piston seal comprising a piston housing (1), characterized in that: install cylinder body (5) through the bolt on piston shell (1) one side outer wall, and cylinder body (5) one end installs piston rod seal receptacle (8) through the bolt, piston rod seal receptacle (8) one end center department slides and pegs graft and has piston rod (7), and piston rod (7) one end pegs graft and have piston head base (4), piston rod (7) outside has cup jointed piston (6), and piston (6) and piston head base (4) joint together, piston head base (4) inside joint has holding ring (3), and the joint has piston head (2) with piston head base (4) mutual contact on holding ring (3) side outer wall, piston (6) side outer wall is close to both ends department and has all seted up left slip annular (21), right slip annular (24), and left slip annular (21), right slip annular (24) inside embedding respectively have slip ring one (11), slip ring two (19).
2. A double-acting stirling engine piston sealing device according to claim 1, wherein the outer wall of the side surface of the piston (6) is provided with a left sealing ring groove (22), a middle groove (15) and a right sealing ring groove (23) which are distributed in a horizontal structure, and a first expansion ring (12), a first opening sealing ring (13) and a first closing sealing ring (14) are embedded in the left sealing ring groove (22).
3. A double-acting stirling engine piston sealing device according to claim 2, wherein the first open sealing ring (13) and the first closed sealing ring (14) are stacked in left and right positions in the left sealing ring groove (22), and the inner walls of the middle groove (15) on both sides are provided with middle groove pores (20).
4. A double-acting stirling engine piston sealing device according to claim 1, wherein the second expansion ring (16), the second closed sealing ring (17) and the second open sealing ring (18) are embedded in the right sealing ring groove (23), and the second open sealing ring (18) and the second closed sealing ring (17) are stacked on the left and right at the installation position in the right sealing ring groove (23).
5. A double-acting stirling engine piston sealing device according to claim 1, wherein an insertion hole (27) is formed in the outer wall of one side of the piston head base (4) near the bottom, and an air guide bolt (28) is inserted into the insertion hole (27).
6. A double-acting Stirling engine piston sealing device according to claim 5, wherein one end of the air guide bolt (28) is provided with an air guide bolt capillary hole (29), and the piston head (2) is communicated with the piston (6) through the air guide bolt capillary hole (29).
7. A double acting stirling engine piston seal according to claim 1 wherein a hot chamber (9) is provided within the piston housing (1), the piston head (2) being slidably inserted within the hot chamber (9).
8. A double-acting stirling engine piston sealing device according to claim 2, wherein a cold chamber (10) is provided inside the cylinder (5), and the piston (6) is slidably inserted into the cold chamber (10).
9. A double acting stirling engine piston seal according to claim 2 wherein a first sealing surface (25) is provided on each of the inner walls of the left sealing ring groove (22) and a second sealing surface (26) is provided on each of the inner walls of the right sealing ring groove (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310093021.1A CN115773189A (en) | 2023-02-10 | 2023-02-10 | Double-acting Stirling engine piston sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310093021.1A CN115773189A (en) | 2023-02-10 | 2023-02-10 | Double-acting Stirling engine piston sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115773189A true CN115773189A (en) | 2023-03-10 |
Family
ID=85393449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310093021.1A Pending CN115773189A (en) | 2023-02-10 | 2023-02-10 | Double-acting Stirling engine piston sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115773189A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000240509A (en) * | 1999-02-22 | 2000-09-05 | Honda Motor Co Ltd | Oil passage structure of piston |
| US20120304854A1 (en) * | 2009-12-14 | 2012-12-06 | Christian Hold | Piston having position rings and support rings |
| CN111734548A (en) * | 2020-07-21 | 2020-10-02 | 杭州英洛威能源技术有限公司 | Piston assembly for Stirling engine |
-
2023
- 2023-02-10 CN CN202310093021.1A patent/CN115773189A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000240509A (en) * | 1999-02-22 | 2000-09-05 | Honda Motor Co Ltd | Oil passage structure of piston |
| US20120304854A1 (en) * | 2009-12-14 | 2012-12-06 | Christian Hold | Piston having position rings and support rings |
| CN111734548A (en) * | 2020-07-21 | 2020-10-02 | 杭州英洛威能源技术有限公司 | Piston assembly for Stirling engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102278229B (en) | Piston device, stirling engine, and external combustion engine | |
| GB2039665A (en) | Pressure stabilizing seal for stirling refrigeration system compressor piston | |
| CN107939722B (en) | Spring-loaded automatic release type dynamic sealing device for oxyhydrogen engine turbopump | |
| CN103032202B (en) | Stirling engine | |
| WO2018210089A1 (en) | DOUBLE ACTINGα-STIRLING COOLER | |
| CN215213717U (en) | Two-stage free piston Stirling generator | |
| US4794752A (en) | Vapor stirling heat machine | |
| CN110185552B (en) | Stirling engine dynamic sealing system differential pressure compensation method | |
| JP2023082139A (en) | Efficient heat recovery engine | |
| CN103216967B (en) | Profound hypothermia discharger adopting full carbon aerogel and stirling cryocooler | |
| JPS6119953A (en) | Stirling engine | |
| CN101349215A (en) | Double-acting type stirling engine | |
| KR101899466B1 (en) | Stirling Engine Using Supercritical Fluids | |
| CN201696163U (en) | Piston rod seal assembly for small Stirling engine | |
| CN101091053A (en) | Piston device, stirling engine, and external combustion engine | |
| CN115773189A (en) | Double-acting Stirling engine piston sealing device | |
| CN117869104A (en) | Novel single cylinder body Stirling engine | |
| CN203552584U (en) | Low-temperature-difference magnetic Stirling engine model | |
| US10570851B2 (en) | Heat engine | |
| CN203114450U (en) | Stirling engine | |
| CN205349549U (en) | High -efficient stirling engine | |
| CN111734548B (en) | Piston assembly for Stirling engine | |
| JPH055479A (en) | Stirling engine | |
| CN114370353A (en) | Free piston Stirling heat engine phase modulator mechanism | |
| CN201412223Y (en) | Engine with air-suspending sealing ring |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20230310 |
|
| RJ01 | Rejection of invention patent application after publication |