JPH01136653U

JPH01136653U -

Info

Publication number: JPH01136653U
Application number: JP3167688U
Authority: JP
Priority date: 1988-03-11
Filing date: 1988-03-11
Publication date: 1989-09-19

Description

[Brief explanation of drawings]

第１図はこの考案の第１の実施例を示したシリ
ンダブロツクの要部縦断面図、第２図は第１図の
―断面図、第３図のＡ，Ｂは第２図の矢印
の部分を拡大して示した作用説明図、第４図はこ
の考案の第２の実施例を示したシリンダブロツク
の要部縦断面図、第５図は第４図の―断面図
、第６図は第４図の―断面図、第７図はこの
考案の第３の実施例を示したシリンダブロツクの
要部縦断面図、第８図は第７図の―断面図、
第９図は従来の構造を例示したシリンダブロツク
の斜視図、第１０図は従来構造におけるクランク
軸の動作態様の説明図である。１５……シリンダブロツク、１８……バルクヘ
ツド、１９……ベアリングキヤツプ。 Fig. 1 is a longitudinal cross-sectional view of a main part of a cylinder block showing the first embodiment of this invention, Fig. 2 is a cross-sectional view taken from Fig. 1, and A and B in Fig. 3 are indicated by arrows in Fig. 2. FIG. 4 is a vertical sectional view of the main part of the cylinder block showing the second embodiment of this invention, FIG. 5 is a sectional view of FIG. 4, and FIG. is a cross-sectional view of FIG. 4, FIG. 7 is a vertical cross-sectional view of the main part of a cylinder block showing the third embodiment of this invention, and FIG. 8 is a cross-sectional view of FIG.
FIG. 9 is a perspective view of a cylinder block illustrating a conventional structure, and FIG. 10 is an explanatory diagram of the operation mode of a crankshaft in the conventional structure. 15...Cylinder block, 18...Bulk head, 19...Bearing cap.

Claims

[Scope of utility model registration request]

A crankshaft bearing peripheral structure in which a bearing cap made of a material with a smaller thermal expansion coefficient than that of the cylinder block is attached to the lower surface of the bulkhead of the cylinder block. A bearing part of a crankshaft, characterized in that it can also come into contact with the side surfaces in the left and right direction, and the side abutting parts can be pressed against each other based on the difference in thermal expansion between the cylinder block and the bearing cap. Peripheral structure.