JPH01111113U - - Google Patents
Info
- Publication number
- JPH01111113U JPH01111113U JP556488U JP556488U JPH01111113U JP H01111113 U JPH01111113 U JP H01111113U JP 556488 U JP556488 U JP 556488U JP 556488 U JP556488 U JP 556488U JP H01111113 U JPH01111113 U JP H01111113U
- Authority
- JP
- Japan
- Prior art keywords
- rocker arm
- combustion engine
- internal combustion
- slipper surface
- continuous pores
- 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
- 239000011148 porous material Substances 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims 11
- 239000000919 ceramic Substances 0.000 claims 6
- 229910001234 light alloy Inorganic materials 0.000 claims 6
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 3
- 229910052878 cordierite Inorganic materials 0.000 claims 3
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims 3
- 239000002184 metal Substances 0.000 claims 2
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Description
第１図は本考案の第１実施例の要部破断正面図
、第２ないし第５図は本考案の第２ないし第５実
施例の要部破断部分正面図である。
ａ……開口部、ｈ，ｈａ〜ｈｄ……連続気孔、
ｓ……スリツパ面、１……ロツカアーム、２……
ロツカアーム本体、３……スリツパ面構成体、３
ａ……接合面形成領域、３ｂ……スリツパ面形成
領域。
FIG. 1 is a partially cutaway front view of a main part of a first embodiment of the present invention, and FIGS. 2 to 5 are cutaway front views of main parts of a second to fifth embodiment of the present invention. a...opening, h, ha to hd ...continuous pores,
s... Slipper surface, 1... Rotsuka arm, 2...
Locker arm body, 3... Slipper surface structure, 3
a...Joint surface forming area, 3b...Slipper surface forming area.
Claims (1)
ーム本体に接合されるセラミツクス製スリツパ面
構成体とを備えた内燃機関用ロツカアームにおい
て、前記スリツパ面構成体は、前記ロツカアーム
本体の鋳造時前記軽合金の溶湯を充填される多数
の連続気孔を有し、前記スリツパ面構成体の気孔
率は８〜６０％に、また前記連続気孔の平均直径
は０．５〜１００μｍにそれぞれ設定されること
を特徴とする内燃機関用ロツカアーム。 (2) 前記連続気孔は、その平均直径が５０μｍ
以上のものを５〜４０％含んでいる、第(1)項記
載の内燃機関用ロツカアーム。 (3) 前記セラミツクスは、Ｓｉ３Ｎ４，ＳｉＣ
，ＺｒＯ２，Ａｌ２Ｏ３およびコージライトから
選択される少なくとも一種である、第(1)または
第(2)項記載の内燃機関用ロツカアーム。 (4) 軽合金製ロツカアーム本体と、該ロツカア
ーム本体に接合されるセラミツクス製スリツパ面
構成体とを備えた内燃機関用ロツカアームにおい
て、前記スリツパ面構成体は、前記ロツカアーム
本体の鋳造時前記軽合金の溶湯を充填される多数
の連続気孔を有し、前記スリツパ面構成体の接合
面形成領域における気孔率は３０〜９０％に、ま
た前記連続気孔の平均直径は１０〜１００μｍに
それぞれ設定され、前記スリツパ面構成体のスリ
ツパ面形成領域における気孔率は８〜４０％に、
また前記連続気孔の平均直径は０．１〜１０μｍ
にそれぞれ設定されることを特徴とする内燃機関
用ロツカアーム。 (5) 前記セラミツクスは、Ｓｉ３Ｎ４，ＳｉＣ
，ＺｒＯ２，Ａｌ２Ｏ３およびコージライトから
選択される少なくとも一種である、第(4)項記載
の内燃機関用ロツカアーム。 (6) 軽合金製ロツカアーム本体と、該ロツカア
ーム本体に接合されるセラミツクス製スリツパ面
構成体とを備えた内燃機関用ロツカアームにおい
て、前記スリツパ面構成体は多数の連続気孔を有
し、該連続気孔は、それのスリツパ面側の開口部
を除いて前記ロツカアーム本体鋳造時に充填され
た前記軽合金により埋められていることを特徴と
する内燃機関用ロツカアーム。 (7) 前記セラミツクスは、Ｓｉ３Ｎ４，ＳｉＣ
，ＺｒＯ２，Ａｌ２Ｏ３およびコージライトから
選択される少なくとも一種である、第(6)項記載
の内燃機関用ロツカアーム。[Claims for Utility Model Registration] (1) A rocker arm for an internal combustion engine comprising a rocker arm body made of a light alloy and a slipper surface structure made of ceramics joined to the rocker arm body, wherein the slipper surface constructor is attached to the rocker arm body. When the main body is cast, it has a large number of continuous pores that are filled with the molten metal of the light alloy, and the porosity of the slipper surface structure is 8 to 60%, and the average diameter of the continuous pores is 0.5 to 100 μm. A lock arm for an internal combustion engine, which is characterized by being set individually. (2) The continuous pores have an average diameter of 50 μm.
The rocker arm for an internal combustion engine according to item (1), which contains 5 to 40% of the above. (3) The ceramics are Si 3 N 4 , SiC
, ZrO 2 , Al 2 O 3 and cordierite, the rocker arm for an internal combustion engine according to item (1) or (2). (4) A rocker arm for an internal combustion engine comprising a rocker arm body made of a light alloy and a slipper surface structure made of ceramics joined to the rocker arm body, wherein the slipper surface body is formed of the light alloy when the rocker arm body is cast. The slipper surface structure has a large number of continuous pores filled with molten metal, the porosity in the joint surface forming region of the slipper surface structure is set to 30 to 90%, and the average diameter of the continuous pores is set to 10 to 100 μm. The porosity in the slipper surface forming region of the slipper surface structure is 8 to 40%,
Moreover, the average diameter of the continuous pores is 0.1 to 10 μm.
A locking arm for an internal combustion engine, which is characterized by being set to each. (5) The ceramics are Si 3 N 4 , SiC
, ZrO 2 , Al 2 O 3 and cordierite, the rocker arm for an internal combustion engine according to item (4). (6) A rocker arm for an internal combustion engine comprising a light alloy rocker arm body and a ceramic slipper surface structure joined to the rocker arm body, wherein the slipper surface body has a large number of continuous pores; A rocker arm for an internal combustion engine, wherein the rocker arm for an internal combustion engine is filled with the light alloy filled when the rocker arm main body is cast, except for the opening on the slipper surface side. (7) The ceramics are Si 3 N 4 , SiC
, ZrO 2 , Al 2 O 3 and cordierite, the rocker arm for an internal combustion engine according to item (6).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP556488U JPH01111113U (en) | 1988-01-20 | 1988-01-20 | |
| US07/207,184 US4936270A (en) | 1987-06-15 | 1988-06-15 | Composite light alloy member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP556488U JPH01111113U (en) | 1988-01-20 | 1988-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01111113U true JPH01111113U (en) | 1989-07-26 |
Family
ID=31209048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP556488U Pending JPH01111113U (en) | 1987-06-15 | 1988-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01111113U (en) |
-
1988
- 1988-01-20 JP JP556488U patent/JPH01111113U/ja active Pending
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