JPH0122923Y2 - - Google Patents
Info
- Publication number
- JPH0122923Y2 JPH0122923Y2 JP1983003299U JP329983U JPH0122923Y2 JP H0122923 Y2 JPH0122923 Y2 JP H0122923Y2 JP 1983003299 U JP1983003299 U JP 1983003299U JP 329983 U JP329983 U JP 329983U JP H0122923 Y2 JPH0122923 Y2 JP H0122923Y2
- Authority
- JP
- Japan
- Prior art keywords
- piston ring
- layer
- ring
- circumferential surface
- nitrocarburized
- 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
Links
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 229910001208 Crucible steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
Description
【考案の詳細な説明】
本考案は内燃機関用ピストンリングに関するも
のであり、特に高鉛燃料使用、又は腐食雰囲気を
もつた内燃機関対策のピストンリングに関するも
のである。[Detailed Description of the Invention] The present invention relates to a piston ring for internal combustion engines, and particularly to a piston ring for internal combustion engines that use high lead fuel or have a corrosive atmosphere.
現在、公害問題により燃料の無鉛化が進んでい
るが、高鉛燃料使用、又は腐食雰囲気性の強い内
燃機関も諸外国を中心にまだ多く使用されてい
る。高鉛燃料使用、又は腐食雰囲気性の強い内燃
機関においてはHCl等の為腐食雰囲気が強く、そ
の為、通常のクロムメツキリングの摩耗が著し
い。その為、現在高鉛燃料使用、又は腐食雰囲気
性の強い内燃機関対策としてリング外周面に厚ク
ロムメツキを施す事が主に実施されているが、そ
の効果はコスト、生産性に比し十分なものではな
い。他にリング外表面に軟窒化処理を施したリン
グもあるが、これは腐食雰囲気に強い為、摩耗は
少ないが運転条件によつてはスカツフイングが発
生する場合がある。 Currently, lead-free fuel is being used due to pollution problems, but internal combustion engines that use high-lead fuel or have a highly corrosive atmosphere are still in use mainly in other countries. In internal combustion engines that use high-lead fuel or have a highly corrosive atmosphere, the corrosive atmosphere is strong due to HCl, etc., and as a result, normal chrome metal rings wear out significantly. Therefore, as a countermeasure for internal combustion engines that use high lead fuel or have a highly corrosive atmosphere, thick chrome plating is currently being applied to the outer circumferential surface of the ring, but the effects are not sufficient compared to cost and productivity. isn't it. There are also rings whose outer surface is nitrocarburized, but this is resistant to corrosive atmospheres, so wear is low, but scuffing may occur depending on operating conditions.
本考案は以上の点に鑑み、以下に述べる様な耐
摩耗性及び耐スカツフイング性の双方にすぐれた
ピストンリングを提供するものである。 In view of the above points, the present invention provides a piston ring that is excellent in both wear resistance and scuffing resistance as described below.
即ち
(1) 鋳鉄又は鋼製ピストンリングの全表面に軟窒
化層を有し、且つ外周面は該軟窒化層上に溶射
層を有する事を特徴とするピストンリング。 Namely, (1) a piston ring made of cast iron or steel, having a soft nitrided layer on the entire surface thereof, and a thermally sprayed layer on the soft nitrided layer on the outer circumferential surface.
(2) 前記ピストンリングに於て、内周面にも軟窒
化層上に溶射層を有する事を特徴とするピスト
ンリングである。(2) The piston ring is characterized in that the inner circumferential surface thereof also has a thermally sprayed layer on the nitrocarburized layer.
以下、本考案ピストンリングを添付図面に沿つ
て詳細に説明する。第１図が本考案ピストンリン
グ１であり、リング全表面に軟窒化層２を深さ
0.01mm〜0.07mm施した後リング外周面３に例えば
Moや鉄系の溶射層４を施したものである。 Hereinafter, the piston ring of the present invention will be described in detail with reference to the accompanying drawings. Figure 1 shows the piston ring 1 of the present invention, in which a soft nitrided layer 2 is applied to the entire surface of the ring.
For example, on the outer circumferential surface 3 of the ring after applying 0.01mm to 0.07mm.
A sprayed layer 4 of Mo or iron is applied.
第２図は本考案の他の実施例を示すものであり
この場合には、組合せオイルかきピストンリング
のサイドレールに適用した例を示すものである。 FIG. 2 shows another embodiment of the present invention, in which it is applied to a side rail of a combination oil-swept piston ring.
サイドレール５の場合、外周面３のみならず内
周面６もスペーサエキスパンダの突起と摺動する
為、内周面６にも溶射層４を施したものである。 In the case of the side rail 5, not only the outer circumferential surface 3 but also the inner circumferential surface 6 slides on the projections of the spacer expander, so the inner circumferential surface 6 is also coated with a sprayed layer 4.
本考案の如くピストンリングを処理する事によ
り、外周面３に施した溶射層４が摩耗するまでに
はリング外周面３になじみが付き、軟窒化層のみ
の場合生ずるリング外周面３に時に発生するスカ
ツフイングを防止し、しかる後に腐食に強い軟窒
化層２が表面に出る。ピストンリングの全表面に
施された軟窒化層２はリング上下面に於けるピス
トンリング溝との間のたたかれ摩耗を防止する。 By treating the piston ring as in the present invention, by the time the thermal sprayed layer 4 applied to the outer circumferential surface 3 wears out, the outer circumferential surface 3 of the ring has become conformable, which sometimes occurs on the outer circumferential surface 3 of the ring, which occurs when only a nitrocarburized layer is used. After that, the soft nitrided layer 2, which is resistant to corrosion, appears on the surface. The nitrocarburized layer 2 applied to the entire surface of the piston ring prevents wear due to knocking between the piston ring grooves on the upper and lower surfaces of the ring.
以上述べた如く鋳鉄又は鋼もしくはその合金で
作られたピストンリング１の全表面に軟窒化処理
層２を深さ0.01mm〜0.07mm施した後リング外周
面、もしくはリング外周面及びリング内周面に溶
射層を施す事により、高鉛燃料使用、又は腐食雰
囲気を持つた内燃機関に於けるHCl等の雰囲気に
よる異常摩耗及びスカツフイングを防止し、且つ
リング上下面に於けるピストンリング溝との間の
たたかれ摩耗を防止し得る高鉛燃料使用、又は腐
食雰囲気をもつた内燃機関用のピストンリングを
提供できる。 As described above, after applying a nitrocarburizing layer 2 to a depth of 0.01 mm to 0.07 mm on the entire surface of the piston ring 1 made of cast iron, steel, or its alloy, the outer peripheral surface of the ring, or the outer peripheral surface of the ring and the inner peripheral surface of the ring. By applying a thermal spray layer to the ring, it is possible to prevent abnormal wear and scuffing due to atmospheres such as HCl in internal combustion engines that use high lead fuel or have a corrosive atmosphere. It is possible to provide a piston ring for internal combustion engines using high lead fuel or in a corrosive atmosphere that can prevent knocking and wear.
第１図、第２図は本考案ピストンリングの実施
例を示す断面図。
符号の説明、１……ピストンリング、２……軟
窒化処理層、３……外周面、４……溶射層、５…
…オイルリングのサイドレール、６……内周面。
1 and 2 are sectional views showing an embodiment of the piston ring of the present invention. Explanation of symbols, 1... Piston ring, 2... Soft-nitrided layer, 3... Outer peripheral surface, 4... Thermal spray layer, 5...
...Oil ring side rail, 6...Inner peripheral surface.
Claims (1)
化層を有し、且つリング外周面は前記軟窒化層
上に溶射層を有する事を特徴とするピストンリ
ング。 (2) 前記ピストンリングに於て、内周面にも軟窒
化層上に溶射層を有する事を特徴とするピスト
ンリング。[Claims for Utility Model Registration] (1) A piston ring characterized in that the entire surface of the cast iron or steel piston ring has a nitrocarburized layer, and the outer peripheral surface of the ring has a thermally sprayed layer on the nitrocarburide layer. . (2) The piston ring characterized in that the inner circumferential surface of the piston ring also has a thermally sprayed layer on the nitrocarburized layer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP329983U JPS59110355U (en) | 1983-01-17 | 1983-01-17 | piston ring |
| DE19843401261 DE3401261A1 (en) | 1983-01-17 | 1984-01-16 | Piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP329983U JPS59110355U (en) | 1983-01-17 | 1983-01-17 | piston ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59110355U JPS59110355U (en) | 1984-07-25 |
| JPH0122923Y2 true JPH0122923Y2 (en) | 1989-07-12 |
Family
ID=11553489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP329983U Granted JPS59110355U (en) | 1983-01-17 | 1983-01-17 | piston ring |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS59110355U (en) |
| DE (1) | DE3401261A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005041408A1 (en) * | 2005-09-01 | 2007-03-08 | Mahle International Gmbh | Method for producing a piston ring for internal combustion engines and such a piston ring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5477822A (en) * | 1977-12-02 | 1979-06-21 | Nippon Piston Ring Co Ltd | Piston ring |
| JPS54126854A (en) * | 1978-03-24 | 1979-10-02 | Toyota Motor Corp | Piston ring |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49110163U (en) * | 1973-01-18 | 1974-09-20 |
-
1983
- 1983-01-17 JP JP329983U patent/JPS59110355U/en active Granted
-
1984
- 1984-01-16 DE DE19843401261 patent/DE3401261A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5477822A (en) * | 1977-12-02 | 1979-06-21 | Nippon Piston Ring Co Ltd | Piston ring |
| JPS54126854A (en) * | 1978-03-24 | 1979-10-02 | Toyota Motor Corp | Piston ring |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3401261A1 (en) | 1984-07-19 |
| JPS59110355U (en) | 1984-07-25 |
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