JPH0235942U

JPH0235942U -

Info

Publication number: JPH0235942U
Application number: JP11142388U
Authority: JP
Priority date: 1988-08-24
Filing date: 1988-08-24
Publication date: 1990-03-08

Description

[Brief explanation of drawings]

第１図〜第４図は本考案の実施例を示し、第１
図は第１実施例を示す多気筒エンジンのシリンダ
ブロツクの要部横断平面図、第２図は第１図の
−線断面図、第３図は第２実施例を示す第１図
相当図、第４図は第３図の−線断面図、第５
図は従来技術を示す第１図相当図である。１……シリンダ、２……シリンダブロツク、３
……シリンダジヤケツト、４……冷却水入口、６
……区画壁、７……分散促進室、８……主冷却室
、１０……通水孔、１２……ウオータポンプ、Ｅ
……直列多気筒エンジン。 1 to 4 show embodiments of the present invention.
The figure is a cross-sectional plan view of a main part of a cylinder block of a multi-cylinder engine showing a first embodiment, FIG. 2 is a sectional view taken along the line - - of FIG. 1, and FIG. Figure 4 is a sectional view taken along the - line in Figure 3;
The figure is a diagram corresponding to FIG. 1 showing the prior art. 1...Cylinder, 2...Cylinder block, 3
...Cylinder jacket, 4...Cooling water inlet, 6
...Division wall, 7...Dispersion promotion chamber, 8...Main cooling room, 10...Water hole, 12...Water pump, E
...In-line multi-cylinder engine.

Claims

[Claims for Utility Model Registration] 1. A series multi-cylinder engine E is constructed by arranging a plurality of cylinders 1 in parallel in the longitudinal direction within a cylinder block 2, and a cylinder jacket 3 is provided between each cylinder 1 and the cylinder block 2. A cooling water inlet 4 is formed at the front of the cylinder block 2, and a cooling water inlet 4 is formed at the front of the cylinder block 2.
In a water cooling system for an in-line multi-cylinder engine in which the cylinders 1 are water-cooled by pumping cooling water into the cylinder jacket 3 using a water pump 12, the cylinder jacket 3 has a dispersion promotion chamber 7 and a main cooling chamber 8. partitioned by partition walls 6, and the partition walls 6
are formed in the longitudinal direction, at least the upper part of each cylinder 1 is surrounded by a main cooling chamber 8, the cooling water inlet 4 is communicated with the dispersion promotion chamber 7, and water passage holes 10 are provided at a plurality of locations in the longitudinal direction of the partition wall 6, respectively. Open each water hole 10
A water cooling system for an in-line multi-cylinder engine, characterized in that a dispersion promotion chamber 7 is communicated with a main cooling chamber 8. 2. The water cooling system for an in-line multi-cylinder engine according to claim 1, wherein the effective opening cross-sectional area of the water passage hole 10 is gradually increased from the front part near the cooling water inlet 4 to the rear part.