JPH0341120U

JPH0341120U -

Info

Publication number: JPH0341120U
Application number: JP10126289U
Authority: JP
Priority date: 1989-08-29
Filing date: 1989-08-29
Publication date: 1991-04-19

Description

[Brief explanation of drawings]

第１図は本考案の第１の実施例を示す要部縦断
面図、第２図は第１図のエンジンの左側面図、第
３図はシリンダヘツドの横断平面図、第４図はシ
リンダのヘツド取付面の平面図、第５図は本考案
の第２の実施例を示す要部縦断面図、第６図は第
５図中の冷却フアンの−線矢視拡大図、第７
図は従来例の第１図相当図である。Ｅ……エンジン、１……クランクケース、２…
…シリンダ、５……シリンダヘツド、７……液冷
室、１０……導風フアンケース、１２……フアン
収容室、１２ａ……吸風口、１３……冷却フアン
、１６……放熱器、１８……放熱器の吸熱風路、
２１……冷却風入口面部分、２２……防塵フイル
タ、２５，２６，２７……エンジンの空冷風路。 Fig. 1 is a vertical cross-sectional view of essential parts showing the first embodiment of the present invention, Fig. 2 is a left side view of the engine shown in Fig. 1, Fig. 3 is a cross-sectional plan view of the cylinder head, and Fig. 4 is a cylinder head. FIG. 5 is a longitudinal cross-sectional view of essential parts showing the second embodiment of the present invention, FIG. 6 is an enlarged view of the cooling fan in FIG.
The figure is a diagram corresponding to FIG. 1 of the conventional example. E...Engine, 1...Crankcase, 2...
... Cylinder, 5 ... Cylinder head, 7 ... Liquid cooling chamber, 10 ... Air guide fan case, 12 ... Fan accommodation chamber, 12a ... Air intake port, 13 ... Cooling fan, 16 ... Heat radiator, 18 ...The heat absorption air path of the radiator,
21...Cooling air inlet surface portion, 22...Dust filter, 25, 26, 27... Engine air cooling air path.

Claims

[Claims for Utility Model Registration] 1. A liquid cooling chamber 7 is formed in part of the cylinder 2 and cylinder head 5 of the engine E, and an air cooling air passage 25 for the engine is formed in the remaining part, and a radiator is provided in the liquid cooling chamber 7. 16 are connected in a circulating manner, an air guide fan case 10 is provided at least in front of the crankcase 1 and the cylinder 2, and a cooling fan 13 is provided on the front side of the crankcase 1 in the air guide fan case 10, and the cooling fan 13 acts as an air blower. allows the cooling air A to pass through the air cooling air passages 25, 26, and 27 of the engine E, and also directs at least a portion of the cooling air to the radiator 1.
In a partially liquid-cooled forced air cooling system for an engine configured to allow the air to pass in series through the heat absorption air passage 18 and the air cooling air passages 25 and 26 of No. 6, a fan accommodation chamber 12 is partitioned and formed in the air guide fan case 10. A cooling fan 1 is installed in the fan storage chamber 12.
3, and there is an air intake port 12a in the center of the back of the fan storage chamber 12.
Open the cooling air A by the suction force of the cooling fan 13.
A partially liquid-cooled forced air cooling device for an engine, characterized in that it is configured to pass through an endothermic air passage 18 of a radiator 16 and air cooling air passages 25, 26, and 27 of the engine. 2. Among the cooling air inlets to the heat absorption air passage 18 of the radiator 16 and the air cooling air passages 25, 26, and 27 of the engine,
2. The partially liquid-cooled forced air cooling system for an engine as claimed in claim 1, further comprising a dustproof filter (22) provided at least at a portion (21) of the cooling air inlet surface portion (21) of the radiator (18) into the heat absorption air passage (18).