JPH0319451U

JPH0319451U -

Info

Publication number: JPH0319451U
Application number: JP8030689U
Authority: JP
Priority date: 1989-07-07
Filing date: 1989-07-07
Publication date: 1991-02-26

Description

[Brief explanation of the drawing]

図面は本考案エンジンブロツクの一実施例を示
すもので、第１図は、第２図−線に沿つて要
部を縦断して示すエンジンの全体側面図、第２図
は第１図−線に沿うエンジンの縦断面図、第
３図は、第１図−線に沿うエンジンの部分拡
大縦断面図、第４図は、第２図−線に沿うシ
リンダブロツクの上面図、第５図は、第２図−
線に沿うシリンダブロツクの底面図、第６図は
、第２図−線に沿うロアーケースの上面図、
第７図は、第２図−線に沿うロアーケースの
底面図、第８図はシリンダブロツクおよびロアー
ケースの分解斜視図、第９図は剛性膜部材および
剛性底板の分解斜視図である。ＢＣ……シリンダブロツク、ｂ……軸受部、Ｃ
Ｌ……ロアーケース、３……クランク軸、４……
シリンダボア、７……シリンダバレル集合ブロツ
ク、８……骨格フレーム、９……ブロツク側剛性
膜部材、９_１……補強用リブ、１０_１〜１０_４…
…第１〜第４シリンダバレル、３４……ロアーケ
ースフレーム、３５……剛性膜部材、３５_１……
補強用リブ。 The drawings show one embodiment of the engine block of the present invention, and FIG. 1 is an overall side view of the engine taken longitudinally along the line in FIG. 2, and FIG. 3 is a partially enlarged vertical sectional view of the engine taken along the line of FIG. 1, FIG. 4 is a top view of the cylinder block taken along the line of FIG. 2, and FIG. , Figure 2-
Figure 6 is a bottom view of the cylinder block along the line, and Figure 2 is a top view of the lower case along the line.
7 is a bottom view of the lower case along the line of FIG. 2, FIG. 8 is an exploded perspective view of the cylinder block and lower case, and FIG. 9 is an exploded perspective view of the rigid membrane member and the rigid bottom plate. BC...Cylinder block, b...Bearing part, C
L...Lower case, 3...Crankshaft, 4...
Cylinder bore, 7... Cylinder barrel assembly block, 8... Skeletal frame, 9... Block side rigid membrane member, 9 ₁ ... Reinforcing rib, 10 ₁ to 10 ₄ ...
...First to fourth cylinder barrels, 34... Lower case frame, 35... Rigid membrane member, 35 ₁ ...
Reinforcing ribs.

Claims

[Scope of utility model registration request]

Lower case C is attached to the bottom of cylinder block BC.
In the engine block of a multi-cylinder engine in which cylinders L are integrally connected and a bearing part b for supporting a crankshaft 3 is formed between them, the cylinder block BC includes cylinder barrels 10 ₁ to 10 4 having cylinder bores ₄ . A three-dimensional lattice-shaped skeleton frame 8 is integrally connected to the outer surfaces of the left and right side walls along the crank axis direction of the cylinder barrel assembly block 7 in which cylinder barrel assembly blocks 7 are connected to each other. The lower case CL is constructed by integrally joining rigid membrane members 9, 9, while lower case side rigid membrane members 35, 35 are directly joined to both left and right side surfaces along the crank axis direction of the lower case frame 34 in the form of a three-dimensional lattice. A multi _- cylinder engine configured as shown in _FIG . engine block.