JPH0296450U - - Google Patents
Info
- Publication number
- JPH0296450U JPH0296450U JP405789U JP405789U JPH0296450U JP H0296450 U JPH0296450 U JP H0296450U JP 405789 U JP405789 U JP 405789U JP 405789 U JP405789 U JP 405789U JP H0296450 U JPH0296450 U JP H0296450U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust port
- pin
- port insert
- hole
- flange part
- 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
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 4
- 239000000919 ceramic Substances 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
図面は本実施例に係るもので第１図はロータハ
ウジングの断面図、第２図は同側面図、第３図は
排気ポートインサートの取付構造を示す要部拡大
断面図、第４図はシール部材の斜視図、第５図は
排気ポートインサートにシール部材を装着した状
態を示す要部断面図、第６図は排気ポートインサ
ート取付構造の要部拡大断面図である。
１…ロータハウジング、１ａ…ピン挿通孔、２
…排気ポートインサート、２ａ…フランジ部、２
ｄ…ピン穴、７…排気ポートインサート取付孔、
７ｂ…フランジ収容部、１０…シール部材、１０
ｂ…ピン孔、１０ｄ…シール部、１１…断熱隙間
、１３…ノツクピン。
The drawings relate to this embodiment, and Fig. 1 is a sectional view of the rotor housing, Fig. 2 is a side view of the same, Fig. 3 is an enlarged sectional view of main parts showing the mounting structure of the exhaust port insert, and Fig. 4 is a seal. FIG. 5 is a perspective view of the member, FIG. 5 is a sectional view of a main part showing a state in which a seal member is attached to an exhaust port insert, and FIG. 6 is an enlarged sectional view of a main part of the exhaust port insert mounting structure. 1... Rotor housing, 1a... Pin insertion hole, 2
...Exhaust port insert, 2a...Flange part, 2
d... Pin hole, 7... Exhaust port insert mounting hole,
7b...Flange housing part, 10...Sealing member, 10
b...Pin hole, 10d...Seal portion, 11...Insulation gap, 13...Knock pin.
Claims (1)
の排気ポートインサート取付孔にセラミツク製の
排気ポートインサートを取付ける取付構造であつ
て、 排気ポートインサートの外端部にフランジ部を
一体形成するとともに、排気ポートインサート取
付孔の外端部に、フランジ部内端面との間に断熱
隙間を空けてフランジ部を装着するフランジ収容
部を形成し、 上記フランジ部の内端面と外周面とを覆う金属
薄板製のシール部材をフランジ部に外嵌させた状
態で、排気ポートインサートを排気ポートインサ
ート取付孔に装着し、 上記シール部材の内端周縁部に断熱隙間をシー
ルする環状且つ中空のシール部を設け、 上記ハウジングのピン挿通孔から、シール部材
の周壁部に形成され且つノツクピンよりも小径の
ピン孔を経て、フランジ部の外周面に凹設された
ピン穴にノツクピンを嵌入させ、ピン孔の外周縁
部を筒状に折曲させてノツクピンとピン穴内周面
間に介在させたことを特徴とする排気ポートイン
サートの取付構造。[Scope of Claim for Utility Model Registration] A mounting structure for mounting a ceramic exhaust port insert into the exhaust port insert mounting hole of a housing where an engine exhaust port is formed, the flange portion being integral with the outer end of the exhaust port insert. At the same time, at the outer end of the exhaust port insert mounting hole, a flange accommodating part is formed in which the flange part is attached with a heat insulating gap between the inner end face and the outer circumferential face of the flange part. The exhaust port insert is attached to the exhaust port insert mounting hole with the covering seal member made of a thin metal plate fitted onto the flange part, and an annular and hollow seal is attached to the inner edge of the seal member to seal the heat insulation gap. The knock pin is inserted from the pin insertion hole of the housing into the pin hole formed in the peripheral wall of the seal member and having a smaller diameter than the knock pin, and into the pin hole recessed in the outer peripheral surface of the flange part, and the pin is inserted into the pin hole. A mounting structure for an exhaust port insert characterized in that the outer peripheral edge of the hole is bent into a cylindrical shape and interposed between a knock pin and the inner peripheral surface of the pin hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP405789U JPH0296450U (en) | 1989-01-17 | 1989-01-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP405789U JPH0296450U (en) | 1989-01-17 | 1989-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0296450U true JPH0296450U (en) | 1990-08-01 |
Family
ID=31206232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP405789U Pending JPH0296450U (en) | 1989-01-17 | 1989-01-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0296450U (en) |
-
1989
- 1989-01-17 JP JP405789U patent/JPH0296450U/ja active Pending
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