JPH0537002Y2 - - Google Patents
Info
- Publication number
- JPH0537002Y2 JPH0537002Y2 JP1984045129U JP4512984U JPH0537002Y2 JP H0537002 Y2 JPH0537002 Y2 JP H0537002Y2 JP 1984045129 U JP1984045129 U JP 1984045129U JP 4512984 U JP4512984 U JP 4512984U JP H0537002 Y2 JPH0537002 Y2 JP H0537002Y2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- section
- seal ring
- shaped cross
- sliding
- 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.)
- Expired - Lifetime
Links
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 12
- 238000007789 sealing Methods 0.000 description 12
- 208000032826 Ring chromosome 3 syndrome Diseases 0.000 description 6
- 238000012856 packing Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
【考案の詳細な説明】
本考案は往復動ガス機関のシールリング装置に
関し、より詳しくは分子量の小さいガスを用いる
熱ガス機関のシールリング装置に関するものであ
る。一般的に分子量の小さいガスを動的（摺動又
は回転）状態でシールする事は非常に困難であ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seal ring device for a reciprocating gas engine, and more particularly to a seal ring device for a hot gas engine using gas with a small molecular weight. Generally, it is very difficult to seal gases with small molecular weights in a dynamic (sliding or rotating) state.
即ち、動的状態ではシール効果を向上させるべ
くシール面圧を高めれば摺動抵抗が上昇し、シー
ル面圧を下げて摺動抵抗を低下させればシール効
果も低下して、条件的に相反するからである。し
かも摺動部が摺動により摩耗した場合にはそれに
よつてシール効果が更に低下する。 In other words, in a dynamic state, increasing the seal surface pressure to improve the sealing effect will increase the sliding resistance, and lowering the seal surface pressure to reduce the sliding resistance will also reduce the sealing effect. Because it does. Furthermore, if the sliding portion is worn due to sliding, the sealing effect will further deteriorate.
又、分子量の小さなガスを用いる熱ガス機関に
おいては、前記シール効果や低摺動抵抗の他に無
潤滑性、耐熱性、耐久性が要求される。 In addition, in a hot gas engine using a gas with a small molecular weight, in addition to the sealing effect and low sliding resistance, lubricity, heat resistance, and durability are required.
従来用いられているものに第１図に示す１ピー
ス型シールリング１や、第２図に示すＵ字パツキ
ング２がある。１ピース型シールリング１は樹脂
製であつて、摺動面１１が大きいのでシール効果
が低いうえ、合口を有するのでそこからもガスが
通過するのでシール材としてその効果は十分では
無い。これに対しＵ字パツキング２は、摺動面２
１が比較的小さく、弾性材で作られているので摺
動面２１とのシール効果は優れるものの、長時間
使用すると前述した如く摺動や、ガス圧の押付力
による摩耗や熱による変形の為にシール効果が低
下して充分なシール効果機能が果たせなくなる問
題がある。 Conventionally used seal rings include a one-piece seal ring 1 shown in FIG. 1 and a U-shaped packing 2 shown in FIG. The one-piece seal ring 1 is made of resin and has a large sliding surface 11, so its sealing effect is low, and it also has an abutment through which gas passes, so it is not effective as a sealing material. On the other hand, U-shaped packing 2 has sliding surface 2
1 is relatively small and made of an elastic material, so it has an excellent sealing effect with the sliding surface 21, but if it is used for a long time, as mentioned above, it will slide, wear due to the pressing force of gas pressure, and deform due to heat. However, there is a problem in that the sealing effect is reduced and the sealing effect cannot be fully performed.
本考案は以上の点に鑑み、シール効果、耐熱
性、耐久性に優れ、且つ摺動抵抗の低い無潤滑シ
ールリング装置を提供するものである。 In view of the above points, the present invention provides a lubrication-free seal ring device that is excellent in sealing effect, heat resistance, and durability, and has low sliding resistance.
即ち、断面略矩形の外周側リングと同じく断面
略矩形の内周側リングから構成された２ピースシ
ールリングであつて、外周側リングは上面側に開
口を有する断面略Ｕ字型リングと該断面略Ｕ字型
リングのＵ字溝全体に充填される中間部材とから
なり、該中間部材は高弾性樹脂製であつて、断面
略Ｕ字リングと結合一体化されると共に、シリン
ダ内壁と摺動する摺動面には、下面側に切り込ま
れたテーパーを有し、更に内周側リングは高弾性
樹脂製であり、外周面が前記外周側リングの内周
面と略同一幅で接する如く配置して２ピースシー
ルリングとなし、該２ピースシールリングをピス
トンリングとなし、該２ピースシールリングをピ
ストンに設けられたリング溝にリング溝底と内周
側リングの内周面が接し、シリンダ内壁と外周側
リングの摺動面が接する如く装着したことを特徴
とする熱ガス機関のシールリング装置である。 That is, it is a two-piece seal ring composed of an outer ring having a substantially rectangular cross section and an inner ring having a substantially rectangular cross section, the outer ring having a substantially U-shaped cross section having an opening on the upper surface side, and the ring having a substantially U-shaped cross section. It consists of an intermediate member that fills the entire U-shaped groove of the approximately U-shaped ring, and the intermediate member is made of highly elastic resin and is integrally connected to the approximately U-shaped ring in cross section, and slides on the cylinder inner wall. The sliding surface has a taper cut into the lower surface side, and the inner ring is made of high elastic resin, so that the outer circumferential surface is in contact with the inner circumferential surface of the outer ring with approximately the same width. arranged to form a two-piece seal ring, the two-piece seal ring is a piston ring, and the bottom of the ring groove and the inner circumferential surface of the inner ring are in contact with a ring groove provided in the piston, This is a seal ring device for a hot gas engine, characterized in that the inner wall of the cylinder and the sliding surface of the outer ring are installed so that they are in contact with each other.
以下、本考案を添付図面に沿つて説明する。 The present invention will be described below with reference to the accompanying drawings.
第３図は本考案シールリングの一実施例の断面
図である。 FIG. 3 is a sectional view of one embodiment of the seal ring of the present invention.
本考案のシールリング装置に用いるシールリン
グは、第３図に示す如く、外周側リング３と内周
側リング４から構成された２ピースシールリング
５である。この外周側リング３は上面３１側に開
口を有する断面略Ｕ字型リング３１１と該断面略
Ｕ字型リングのＵ字溝３２全体に充填される中間
部材３１２とから成り、該中間部材３１２は高弾
性樹脂製であつて、断面略Ｕ字型リング３１１と
一体的に結合されている。 The seal ring used in the seal ring device of the present invention is a two-piece seal ring 5 composed of an outer ring 3 and an inner ring 4, as shown in FIG. This outer ring 3 is composed of a ring 311 having a substantially U-shaped cross section and an opening on the upper surface 31 side, and an intermediate member 312 that fills the entire U-shaped groove 32 of the substantially U-shaped cross-sectional ring. It is made of highly elastic resin and is integrally connected to the ring 311 which has a substantially U-shaped cross section.
また、シリンダ６のシリンダ内壁６１と摺動す
る外周側リング３の摺動面３３には下面３４側に
切り込まれたテーパー３５が設けられている。 Further, the sliding surface 33 of the outer ring 3 that slides on the cylinder inner wall 61 of the cylinder 6 is provided with a taper 35 cut into the lower surface 34 side.
一方、内周側リング４は高弾性樹脂製であつ
て、断面略矩形を呈する。そして、外周面４１は
前記外周側リング３の内周面３６と接する如く配
置される。 On the other hand, the inner ring 4 is made of highly elastic resin and has a substantially rectangular cross section. The outer peripheral surface 41 is arranged so as to be in contact with the inner peripheral surface 36 of the outer peripheral ring 3.
この外周側リング３と内周側リング４とからな
る２ピースシールリング５をピストン７に設けた
リング溝７１の溝底７１１と内周側リング４の内
周面４２が接し、シリンダ内壁６１と外周側リン
グ３の摺動面３３が接する如く装着してシールリ
ング装置となすものである。 The groove bottom 711 of the ring groove 71 provided in the piston 7 with the two-piece seal ring 5 consisting of the outer ring 3 and the inner ring 4 is in contact with the inner circumferential surface 42 of the inner ring 4, and the cylinder inner wall 61 and It is installed so that the sliding surface 33 of the outer ring 3 is in contact with it to form a seal ring device.
尚、外周側リングの断面略Ｕ字型リングは四弗
化エチレン樹脂等やポリイミド樹脂等をベースと
して適当な充填材を混入した耐熱耐摩耗性樹脂が
望ましい。又、中間部材はシリコンゴム、弗素ゴ
ム等が望ましく、断面略Ｕ字型リングとの結合は
中間部材の可硫成形時に結合する方法や成形後に
接着する方法いずれでも良い。 The outer ring, which has a substantially U-shaped cross section, is preferably made of a heat-resistant and abrasion-resistant resin based on tetrafluoroethylene resin, polyimide resin, or the like, mixed with an appropriate filler. Further, the intermediate member is preferably made of silicone rubber, fluorine rubber, etc., and the ring may be connected to the ring having a substantially U-shaped cross section by either a method of joining during vulcanizable molding of the intermediate member or a method of adhering after molding.
更に内周側リングの幅は、摺動面の摩耗が限界
値に達しても常に溝底部に接触している必要があ
る。本考案のシールリング装置においては、外周
側リングが断面Ｕ字型リングのＵ字溝全体に高弾
性樹脂製の中間部材が結合されているために、高
弾性樹脂製の中間部材が摺動面に対し良好な接触
を与えシール性を向上することができる。また、
断面略Ｕ字型リングのＵ字溝は中間部材が充填さ
れて全て埋められているために、Ｕ字溝にガス圧
がかからないので摺動面の摩耗を著しく減少でき
る。更に、高弾性樹脂製の内周側リングがリング
溝底と接する如く配されているため、ガス圧が背
面にかかることがないので、外周側シールリング
の摺動面の摩耗を著しく減少できる。従つて、長
時間にわたり、優れたシール効果が維持できると
いう効果を奏する。 Furthermore, the width of the inner ring must be such that it is always in contact with the groove bottom even when the wear of the sliding surface reaches a limit value. In the seal ring device of the present invention, the intermediate member made of high elastic resin is coupled to the entire U-shaped groove of the ring with a U-shaped cross section in the outer peripheral side ring, so that the intermediate member made of high elastic resin is attached to the sliding surface. It is possible to improve sealing performance by providing good contact with the material. Also,
Since the U-shaped groove of the ring having a substantially U-shaped cross section is completely filled with the intermediate member, no gas pressure is applied to the U-shaped groove, so that wear on the sliding surface can be significantly reduced. Furthermore, since the inner ring made of highly elastic resin is arranged so as to be in contact with the bottom of the ring groove, gas pressure is not applied to the back surface, so wear on the sliding surface of the outer seal ring can be significantly reduced. Therefore, it is possible to maintain an excellent sealing effect for a long time.
第４図は本考案の他の実施例を示す断面図であ
り第３図との相違点は次の点である。即ち、第４
図にあつては、断面略Ｕ字型リング３１１が金属
（例えばスチール、鋳鉄、アルミニウムなど）に
て製作され、摺動面に樹脂層３７を設けた点が第
３図のものと異なる。このようにすることによつ
て、中間部材と断面略Ｕ字型リングとを一層強固
に結合できると共に、金属を用いることによつ
て、摺動部の強度も補強できるという効果を奏す
るものである。 FIG. 4 is a sectional view showing another embodiment of the present invention, and the differences from FIG. 3 are as follows. That is, the fourth
The figure differs from the one in FIG. 3 in that a ring 311 having a substantially U-shaped cross section is made of metal (for example, steel, cast iron, aluminum, etc.) and a resin layer 37 is provided on the sliding surface. By doing so, it is possible to more firmly connect the intermediate member and the ring having a substantially U-shaped cross section, and by using metal, the strength of the sliding part can be reinforced. .
第５図、第６図は、本考案の効果を従来品と比
較したものであり、前者は摺動時間に対するガス
洩れ面積を示し、後者はガス圧力に対する摺動抵
抗を示すものである。使用リングは従来品１は第
１図に示す１ピースの合口を有するシールリング
１であり、従来品２は第２図に示すエンドレスの
Ｕ字パツキング２である。本考案品は第３図に示
す本考案シールリング５である。尚、リング径は
いずれも110φであり、１ピース型シールリング
１の合口スキマは0.1mmである。 Figures 5 and 6 compare the effects of the present invention with conventional products; the former shows gas leakage area versus sliding time, and the latter shows sliding resistance versus gas pressure. Conventional product 1 is a seal ring 1 having a one-piece abutment as shown in FIG. 1, and conventional product 2 is an endless U-shaped packing 2 shown in FIG. 2. The product of the present invention is a seal ring 5 of the present invention shown in FIG. The diameter of each ring is 110φ, and the abutment clearance of the one-piece seal ring 1 is 0.1 mm.
一見して明らかな如く、本考案シールリングは
従来品に比しガス洩れ通路の点でもガス圧力に対
する摺動抵抗の点でも非常に優れている。 As is obvious at first glance, the seal ring of the present invention is extremely superior to conventional products in terms of gas leakage passages and sliding resistance against gas pressure.
以上説明した如く、本考案によりシール効果に
非常に優れ、且つ耐久性や低摺動抵抗性にも優れ
たシールリングを提供する事ができる。 As explained above, according to the present invention, it is possible to provide a seal ring that has an extremely excellent sealing effect, and is also excellent in durability and low sliding resistance.
第１図は従来品の１ピース型シールリングの断
面図であり、第２図は他の従来品のＵ字パツキン
グの断面図で、第３図は本考案の一実施例を示す
断面図、第４図は本考案の他の実施例を示す断面
図である。第５図は本考案シールリングと従来品
とのガス洩れ通路面積を、第６図は同じく摺動抵
抗をそれぞれ比較したグラフである。
符号の説明、１……１ピース型シールリング、
２……Ｕ字パツキング、３……外周側リング、３
１１……断面略Ｕ字型リング、３１２……中間部
材、４……内周側リング、５……２ピースシール
リング、６……シリンダ、７……ピストン、７１
……リング溝。
FIG. 1 is a sectional view of a conventional one-piece seal ring, FIG. 2 is a sectional view of another conventional U-shaped packing, and FIG. 3 is a sectional view of an embodiment of the present invention. FIG. 4 is a sectional view showing another embodiment of the present invention. FIG. 5 is a graph comparing the gas leakage passage area between the seal ring of the present invention and a conventional product, and FIG. 6 is a graph comparing the sliding resistance. Explanation of symbols, 1...1-piece seal ring,
2...U-shaped packing, 3...Outer ring, 3
DESCRIPTION OF SYMBOLS 11...Ring with approximately U-shaped cross section, 312...Intermediate member, 4...Inner peripheral side ring, 5...2-piece seal ring, 6...Cylinder, 7...Piston, 71
...Ring groove.
Claims (1)
形の内周側リングから構成された２ピースシー
ルリングであつて、外周側リングは上面側に開
口を有する断面略Ｕ字型リングと該断面略Ｕ字
型リングのＵ字溝全体に充填される中間部材と
からなり、該中間部材は高弾性樹脂製であつ
て、断面略Ｕ字型リングと結合一体化されると
共に、シリンダ内壁と摺動する摺動面には、下
面側に切り込まれたテーパーを有し、更に内周
側リングは高弾性樹脂製であり、外周面が前記
外周側リングの内周面と略同一幅で接する如く
配置して２ピースシールリングとなし、該２ピ
ースシールリングをピストンに設けられたリン
グ溝にリング溝底と内周側リングの内周面が接
し、シリンダ内壁と外周側リングの摺動面が接
する如く装着したことを特徴とする熱ガス機関
のシールリング装置。 (2) 前記断面略Ｕ字型リングを金属製とし、シリ
ンダ内壁と摺動する摺動面に樹脂層を設けたこ
とを特徴とする前記実用新案登録請求の範囲第
１項記載の熱ガス機関用のシールリング装置。[Claims for Utility Model Registration] (1) A two-piece seal ring consisting of an outer ring with a substantially rectangular cross section and an inner ring with a substantially rectangular cross section, the outer ring having an opening on the top side. Consisting of a ring with a substantially U-shaped cross section and an intermediate member that fills the entire U-shaped groove of the ring with a substantially U-shaped cross section, the intermediate member is made of high elastic resin and is integrally connected to the ring with a substantially U-shaped cross section. The sliding surface that slides on the inner wall of the cylinder has a taper cut into the lower surface side, and the inner ring is made of high elastic resin, and the outer circumferential surface is similar to that of the outer ring. The two-piece seal ring is arranged so as to be in contact with the inner circumferential surface with approximately the same width, and the two-piece seal ring is arranged so that the bottom of the ring groove and the inner circumferential surface of the inner ring are in contact with the ring groove provided in the piston, and the cylinder A seal ring device for a hot gas engine, characterized in that the seal ring device is installed so that the sliding surfaces of the inner wall and the outer ring are in contact with each other. (2) The hot gas engine according to claim 1, wherein the ring having a substantially U-shaped cross section is made of metal, and a resin layer is provided on the sliding surface that slides on the inner wall of the cylinder. Seal ring device for.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984045129U JPS60157963U (en) | 1984-03-30 | 1984-03-30 | Hot gas engine seal ring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984045129U JPS60157963U (en) | 1984-03-30 | 1984-03-30 | Hot gas engine seal ring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60157963U JPS60157963U (en) | 1985-10-21 |
| JPH0537002Y2 true JPH0537002Y2 (en) | 1993-09-20 |
Family
ID=30558351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984045129U Granted JPS60157963U (en) | 1984-03-30 | 1984-03-30 | Hot gas engine seal ring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60157963U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004162632A (en) * | 2002-11-14 | 2004-06-10 | Teikoku Piston Ring Co Ltd | Combined piston ring |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6145770B2 (en) * | 2013-06-12 | 2017-06-14 | マルシン工業株式会社 | Blowback gas gun |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4939689U (en) * | 1972-07-15 | 1974-04-08 | ||
| JPS5096748A (en) * | 1973-12-26 | 1975-08-01 | ||
| JPS5838195U (en) * | 1981-09-08 | 1983-03-12 | ヤマハ株式会社 | Actuator for self-playing piano |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58116863U (en) * | 1982-02-02 | 1983-08-09 | 株式会社阪上製作所 | U packing assembly |
-
1984
- 1984-03-30 JP JP1984045129U patent/JPS60157963U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4939689U (en) * | 1972-07-15 | 1974-04-08 | ||
| JPS5096748A (en) * | 1973-12-26 | 1975-08-01 | ||
| JPS5838195U (en) * | 1981-09-08 | 1983-03-12 | ヤマハ株式会社 | Actuator for self-playing piano |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004162632A (en) * | 2002-11-14 | 2004-06-10 | Teikoku Piston Ring Co Ltd | Combined piston ring |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60157963U (en) | 1985-10-21 |
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