JPS6348951U

JPS6348951U -

Info

Publication number: JPS6348951U
Application number: JP14180386U
Authority: JP
Priority date: 1986-09-18
Filing date: 1986-09-18
Publication date: 1988-04-02

Description

[Brief explanation of the drawing]

第１図はこの考案によるエンジン等の排気ポー
トの断熱構造の一実施例を示す断面図、第２図は
従来のエンジンの排気ポートライナ装置を示す断
面図、及び第３図は従来の別のエンジンの排気ポ
ートライナ装置を示す断面図である。１……排気ポートライナ、２，３……金属製リ
ング（固定手段）、４……断熱材、５……組立体
、６……シリンダヘツド、７……排気ポート、８
……貫通孔、９……短筒部、１０……排気弁口、
１１……排気ポート出口、１２……排気ポート、
１３……ガスケツト、１４，１６……端面、ステ
ム案内部。 FIG. 1 is a cross-sectional view showing one embodiment of the heat insulating structure for an exhaust port of an engine, etc. according to this invention, FIG. 2 is a cross-sectional view showing a conventional exhaust port liner device for an engine, and FIG. FIG. 2 is a sectional view showing an exhaust port liner device for an engine. 1...Exhaust port liner, 2, 3...Metal ring (fixing means), 4...Insulating material, 5...Assembly, 6...Cylinder head, 7...Exhaust port, 8
...Through hole, 9...Short cylinder part, 10...Exhaust valve port,
11...Exhaust port outlet, 12...Exhaust port,
13... Gasket, 14, 16... End face, stem guide section.

Claims

[Claims for Utility Model Registration] (1) An exhaust port characterized in that the outer peripheral surface of the exhaust port liner is covered with a heat insulating material such as ceramic, and a means for fixing the heat insulating material is fixed to the exhaust port liner. insulation structure. (2) The heat insulating structure for an exhaust port according to claim 1, wherein the fixing means is a metal ring fixed to the outer peripheral surface of both ends of the exhaust port liner by welding or the like. . (3) The heat insulating structure for an exhaust port according to claim 1, wherein the outer peripheral surface of the fixing means is covered with the heat insulating material. (4) The end where one of the fixing means is located constitutes a valve seat of an exhaust valve, and the other end where the fixing means is located is connected to another exhaust port via a gasket. A heat insulating structure for an exhaust port according to claim 1 of the utility model registration claim. (5) The heat insulating structure of an exhaust port according to claim 1 of the utility model registration claim, which is applicable to an exhaust manifold.