JPS63183319U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案に係る排気マニホールド構造の
一実施例を示した部分破断側面図、第２図はその
上面図、第３図は第２図中の―線断面図、第
４図はその要部拡大図、第５図は従来の排気マニ
ホールド構造を示した部分破断側面図、第６図は
その上面図、第７図は第６図中の―線断面図
、第８図はその要部拡大図である。 図中、１は排気マニホールド、２は内殻、３は
排気室、４は断熱層、５は外殻、１４は貫通孔、
１５は管体、１６はその両端部である。 Fig. 1 is a partially cutaway side view showing an embodiment of the exhaust manifold structure according to the present invention, Fig. 2 is a top view thereof, Fig. 3 is a sectional view taken along the line - in Fig. 2, and Fig. 4 is its top view. 5 is a partially cutaway side view showing a conventional exhaust manifold structure, FIG. 6 is a top view, FIG. 7 is a sectional view taken along the line - in FIG. It is an enlarged view of the part. In the figure, 1 is an exhaust manifold, 2 is an inner shell, 3 is an exhaust chamber, 4 is a heat insulation layer, 5 is an outer shell, 14 is a through hole,
15 is a tube body, and 16 is its both ends.

Claims (1)

【実用新案登録請求の範囲】 (1) シリンダヘツドに接続されて各気筒からの
排気を集合させて排出するための排気室を区画す
る内殻を形成し、該内殻の上記シリンダヘツド側
から反対側に取付ボルトを挿通するための貫通孔
を形成し、該貫通孔に管体を挿入すると共に、該
管体の両端部を外方に折り返して内殻に接合し、
上記管体および内殻の外側に、順次断熱層、外殻
を被覆してなることを特徴とする排気マニホール
ド構造。 (2) 上記内殻および上記管体がステンレス鋼板
により成形されて接合された上記実用新案登録請
求の範囲第１項に記載の排気マニホールド構造。 (3) 上記管体の両端部が径方向外方に折り返さ
れて、上記内殻に形成される貫通孔の周縁部に所
定長さ重ね合わされて接合された上記実用新案登
録請求の範囲第１項または第２項に記載の排気マ
ニホールド構造。[Scope of Claim for Utility Model Registration] (1) Forms an inner shell that is connected to a cylinder head and defines an exhaust chamber for collecting and discharging exhaust gas from each cylinder, and from the cylinder head side of the inner shell. forming a through hole for inserting a mounting bolt on the opposite side, inserting a tube body into the through hole, folding both ends of the tube body outward and joining it to the inner shell;
An exhaust manifold structure characterized in that the pipe body and inner shell are coated with a heat insulating layer and an outer shell in sequence. (2) The exhaust manifold structure according to claim 1, wherein the inner shell and the tube body are molded from stainless steel plates and joined together. (3) Claim 1 of the above-mentioned utility model registration, in which both ends of the tube body are folded back radially outward and overlapped and joined by a predetermined length to the peripheral edge of the through-hole formed in the inner shell. The exhaust manifold structure according to item 1 or 2.