JPS62143050U

JPS62143050U -

Info

Publication number: JPS62143050U
Application number: JP3138986U
Authority: JP
Priority date: 1986-03-05
Filing date: 1986-03-05
Publication date: 1987-09-09

Description

[Brief explanation of the drawing]

第１図は本考案による冷却水通路構造を備えた
内燃機関の一つの実施例を示す縦断面図、第２図
は第１図に示された本考案による冷却水通路構造
を示す概略構成図、第３図は第２図に示された本
考案による冷却水通路構造の概略構成を示す平面
図、第４図及び第５図は同じくそれを吸気ポート
側及び排気ポート側から見た概略構成図、第６図
は本考案による冷却水通路構造に於ける時とその
他の冷却水通路構造に於ける時との温度特性を比
較して示すグラフ、第７図及び第８図は各々本考
案以外の冷却水通路の説明図、第９図は本考案に
よる冷却水通路構造の他の一つの実施例を示す概
略斜視図、第１０図は第９図に示された本考案に
よる冷却水通路構造の概略を示す平面図、第１１
図及び第１２図は同じくそれの気筒配列方向の一
方の側及び他方の側から見た概略構成図、第１３
図は本考案による冷却水通路構造のもう一つの実
施例を示す要部の平面図、第１４図はシリンダボ
アの壁面温度特性を示すグラフである。１０……エンジンブロツク、１２……シリンダ
ブロツク部、１４……シリンダヘツド部、１６…
…シリンダボア、１８……ピストン、２０，２２
……ピストスリング、２４……オイルリング、２
８……吸気ポート、３０……排気ポート、３２…
…シリンダブロツク内冷却水通路、２４……シリ
ンダヘツド内冷却水通路、３６，３８……隔壁、
４０……冷却水入口、４２……冷却水出口、４４
，４６，４８……隔壁。 FIG. 1 is a longitudinal sectional view showing one embodiment of an internal combustion engine equipped with a cooling water passage structure according to the present invention, and FIG. 2 is a schematic configuration diagram showing the cooling water passage structure according to the invention shown in FIG. 1. , FIG. 3 is a plan view showing a schematic configuration of the cooling water passage structure according to the present invention shown in FIG. Figure 6 is a graph comparing the temperature characteristics of the cooling water passage structure according to the present invention and that of other cooling water passage structures, and Figures 7 and 8 are graphs showing the temperature characteristics of the cooling water passage structure according to the present invention, respectively. Fig. 9 is a schematic perspective view showing another embodiment of the cooling water passage structure according to the present invention, and Fig. 10 is an explanatory diagram of the cooling water passage according to the present invention shown in Fig. 9. Plan view showing the outline of the structure, No. 11
12 and 12 are schematic configuration diagrams as seen from one side and the other side in the cylinder arrangement direction, and FIG.
The figure is a plan view of the main parts showing another embodiment of the cooling water passage structure according to the present invention, and FIG. 14 is a graph showing the wall surface temperature characteristics of the cylinder bore. 10...Engine block, 12...Cylinder block part, 14...Cylinder head part, 16...
...Cylinder bore, 18...Piston, 20, 22
...Pisto sling, 24...Oil ring, 2
8...Intake port, 30...Exhaust port, 32...
...Cylinder block internal cooling water passage, 24... Cylinder head internal cooling water passage, 36, 38... Partition wall,
40...Cooling water inlet, 42...Cooling water outlet, 44
, 46, 48... bulkhead.

Claims

[Claims for Utility Model Registration] (1) The cooling water passage of the cylinder block and the cooling water passage of the cylinder head communicate with each other without including a substantial boundary, and the cooling water passage has the cooling water passage. A cooling water passage structure for an internal combustion engine, characterized in that a partition wall extending across the cylinder block is provided, and a cooling water inlet and a cooling water outlet are provided in the cylinder block with the partition wall separating the cylinder block. (2) In the cooling water passage structure for an internal combustion engine as set forth in claim 1, the partition wall is arranged so that the oil of the piston at the top dead center position is lower than the end of the cooling water passage on the piston bottom dead center side. A cooling water passage structure characterized by being provided at a height corresponding to the ring.