JPH0310056U - - Google Patents
Info
- Publication number
- JPH0310056U JPH0310056U JP7094789U JP7094789U JPH0310056U JP H0310056 U JPH0310056 U JP H0310056U JP 7094789 U JP7094789 U JP 7094789U JP 7094789 U JP7094789 U JP 7094789U JP H0310056 U JPH0310056 U JP H0310056U
- Authority
- JP
- Japan
- Prior art keywords
- manifold
- exhaust passage
- liner
- surface roughness
- ceramic liner
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims 4
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Ceramic Products (AREA)
Description
図面は本考案の一実施例を示し、第１図はシリ
ンダヘツドの縦断正面図で第２図−線断面図
に対応し、第２図は第１図−矢視図、第３図
は第１図−線断面図、第４図はセラミツクラ
イナの斜視図、第５図は第４図−線断面図、
第６図はセラミツクライナの平面図、第７図は第
６図−線断面図である。
ｃ，ｄ……外表面、Ｒ１……分岐領域、Ｒ２…
…他の領域、１……シリンダヘツド（エンジン部
品）、７……二股管形排気通路（多岐管形排気通
路）、８……シリンダヘツド本体（鋳物製部品本
体）、９……二股管形セラミツクライナ（多岐管
形セラミツクライナ）、１０……ライナ本体、１
１１，１１２……第１、第２筒体。
The drawings show one embodiment of the present invention, and FIG. 1 is a longitudinal sectional front view of the cylinder head, which corresponds to a sectional view taken along the line in FIG. 2, FIG. Figure 1 is a sectional view taken along the line, Figure 4 is a perspective view of the ceramic liner, Figure 5 is a sectional view taken along the line shown in Figure 4,
FIG. 6 is a plan view of the ceramic liner, and FIG. 7 is a sectional view taken along the line shown in FIG. 6. c, d...Outer surface, R1 ...Branch region, R2 ...
...Other areas, 1... Cylinder head (engine parts), 7... Bifurcated pipe type exhaust passage (manifold type exhaust passage), 8... Cylinder head body (casting part body), 9... Bifurcated pipe type Ceramic liner (manifold type ceramic liner), 10...liner body, 1
1 1 , 11 2 ...first and second cylindrical bodies.
Claims (1)
れて多岐管形排気通路を形成する多岐管形セラミ
ツクライナとより構成され、前記セラミツクライ
ナは中空筒状ライナ本体および該ライナ本体から
分岐する複数の筒体を有する、多岐管形排気通路
を備えたエンジン部品において、相隣る両筒体が
分岐する前記セラミツクライナの分岐領域におけ
る外表面の面粗さを、他の領域の外表面における
面粗さよりも低く設定したことを特徴とする、多
岐管形排気通路を備えたエンジン部品。 (2) 前記分岐領域における外表面の面粗さＲｍ
ａｘは３０μｍ未満であり、前記他の領域におけ
る外表面の面粗さＲｍａｘは３０μｍ以上、８０
μｍ以下である、第(1)項記載の多岐管形排気通
路を備えたエンジン部品。[Claims for Utility Model Registration] (1) Consisting of a casting part body and a manifold ceramic liner that is cast into the part body to form a manifold exhaust passage, the ceramic liner has a hollow cylindrical shape. In an engine component equipped with a manifold exhaust passage having a liner body and a plurality of cylinders branching from the liner body, surface roughness of the outer surface of the ceramic liner in a branching region where both adjacent cylinders branch. An engine part equipped with a manifold-type exhaust passage, characterized in that the surface roughness of the outer surface is set lower than that of the outer surface of other regions. (2) Surface roughness R m of the outer surface in the branch area
ax is less than 30 μm, and the surface roughness R max of the outer surface in the other region is 30 μm or more, 80
An engine part equipped with a manifold exhaust passage according to item (1), which has a diameter of .mu.m or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7094789U JPH0734200Y2 (en) | 1989-06-16 | 1989-06-16 | Engine parts with manifold exhaust passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7094789U JPH0734200Y2 (en) | 1989-06-16 | 1989-06-16 | Engine parts with manifold exhaust passage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0310056U true JPH0310056U (en) | 1991-01-30 |
| JPH0734200Y2 JPH0734200Y2 (en) | 1995-08-02 |
Family
ID=31607551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7094789U Expired - Lifetime JPH0734200Y2 (en) | 1989-06-16 | 1989-06-16 | Engine parts with manifold exhaust passage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734200Y2 (en) |
-
1989
- 1989-06-16 JP JP7094789U patent/JPH0734200Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0734200Y2 (en) | 1995-08-02 |