JPS62138847U

JPS62138847U -

Info

Publication number: JPS62138847U
Application number: JP2574186U
Authority: JP
Priority date: 1986-02-26
Filing date: 1986-02-26
Publication date: 1987-09-01

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す断熱形デイーゼ
ルエンジンの縦断面図、第２図は従来の断熱形デ
イーゼルエンジンの縦断面図、第３Ａ図および第
３Ｂ図は本考案の第１実施例に係るシリンダライ
ナを示し、第３Ａ図は縦断面図、第３Ｂ図は第３
Ａ図のＡ部の拡大図、第４Ａ図および第４Ｂ図は
本考案の第２実施例に係るシリンダライナを示し
、第４Ａ図は縦断面図、第４Ｂ図は第４Ａ図のＡ
部の拡大図、第５Ａ図および第５Ｂ図は本考案の
第３実施例に係るシリンダライナを示し、第５Ａ
図は縦断面図、第５Ｂ図は横断面図である。１……シリンダブロツク、２……シリンダライ
ナ、３……ピストン、４……冷却通路、５……セ
ラミツク層、６ａ，６ｂ，６ｃ……溝、７ａ，７
ｂ，７ｃ……凸部、８……セラミツク層。 Fig. 1 is a vertical cross-sectional view of an adiabatic diesel engine showing an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of a conventional adiabatic diesel engine, and Figs. 3A and 3B are a first embodiment of the present invention. FIG. 3A is a vertical cross-sectional view, and FIG. 3B is a third cross-sectional view.
4A and 4B show a cylinder liner according to a second embodiment of the present invention, FIG. 4A is a longitudinal cross-sectional view, and FIG. 4B is an enlarged view of part A in FIG. 4A.
5A and 5B show a cylinder liner according to a third embodiment of the present invention;
The figure is a longitudinal cross-sectional view, and FIG. 5B is a cross-sectional view. DESCRIPTION OF SYMBOLS 1... Cylinder block, 2... Cylinder liner, 3... Piston, 4... Cooling passage, 5... Ceramic layer, 6a, 6b, 6c... Groove, 7a, 7
b, 7c... Convex portion, 8... Ceramic layer.

Claims

[Scope of utility model registration request]

In a diesel engine in which a cylinder liner is inserted into the cylinder hole of the cylinder block and a cooling passage is provided in the cylinder block to surround the cylinder liner, a groove is formed on the outer circumference of the lower part of the cylinder liner or the inner circumference of the lower part of the cylinder block. A heat insulating type characterized in that an air layer is formed between the outer periphery of the cylinder liner and the inner periphery of the cylinder block by grooves, and a ceramic layer is formed on the surface of the convex portion formed by forming the grooves. diesel engine.