JPS61160224U

JPS61160224U -

Info

Publication number: JPS61160224U
Application number: JP4390685U
Authority: JP
Priority date: 1985-03-28
Filing date: 1985-03-28
Publication date: 1986-10-04
Also published as: JPH032673Y2

Description

[Brief explanation of drawings]

第１図及び第２図は夫々本考案の異なる実施例
のエンジン冷却装置の平面図、第３図は本考案の
第１実施例の一方向弁の側断面図、第４図は第３
図における弁体の作動状態を示す説明図、第５図
は本考案の一方向弁の第２実施例を示す正面図、
第６図は第５図のＡ〜Ａ断面図、第７図は本考案
の一方向弁の第３実施例を示す側断面図、第８図
は本考案の場合のウオータポンプ回転数とメイン
及びリリーフ回路流量との関係を示す線図、第９
図は従来のウオータポンプ回転数とメイン及びリ
リーフ回路流量との関係を示す線図、第１０図は
従来の水冷式内燃機関の冷却装置の平面図、第１
１図は第１０図の弁機構部の正面断面図、第１２
図ａ，ｂは同弁体の開閉状態の説明図である。図の主要部分の説明、２０……一方向弁、２１
……ヘツド、２２……ウオータポンプ、２３……
吐出通路、２４……ラジエータ、２５……戻り通
路、２６……第１分岐導管、２７……第２分岐導
管、２８……サーモスタツト弁、３０……円錐形
弁座、３１……ハウジング、３２……弁体、３３
……スプリング、３４……軸受、３６……円錐台
形。 1 and 2 are plan views of engine cooling systems according to different embodiments of the present invention, FIG. 3 is a side sectional view of a one-way valve according to the first embodiment of the present invention, and FIG.
An explanatory view showing the operating state of the valve body in the figure, FIG. 5 is a front view showing the second embodiment of the one-way valve of the present invention,
Figure 6 is a sectional view from A to A in Figure 5, Figure 7 is a side sectional view showing the third embodiment of the one-way valve of the present invention, and Figure 8 is the water pump rotation speed and main Diagram showing the relationship between the flow rate and the relief circuit flow rate, No. 9
The figure is a diagram showing the relationship between the conventional water pump rotation speed and the main and relief circuit flow rates, Figure 10 is a plan view of a conventional cooling system for a water-cooled internal combustion engine, and
Figure 1 is a front sectional view of the valve mechanism section in Figure 10, and Figure 12 is a front sectional view of the valve mechanism section in Figure 10.
Figures a and b are explanatory diagrams of the open and closed states of the valve body. Explanation of main parts of the figure, 20...One-way valve, 21
...Head, 22...Water pump, 23...
Discharge passage, 24...Radiator, 25...Return passage, 26...First branch conduit, 27...Second branch conduit, 28...Thermostat valve, 30...Conical valve seat, 31...Housing, 32...Valve body, 33
... Spring, 34 ... Bearing, 36 ... truncated cone.

Claims

[Scope of utility model registration request]

A water pump that forcibly sends cooling water to the internal combustion engine, a passage that discharges cooling water from the head of the internal combustion engine to the radiator, a return passage that leads the cooling water from the radiator to the water pump, and a passage between the discharge passage and the return passage. a first branch conduit which is short-circuited without passing through the radiator; a second branch conduit arranged in parallel with the first branch conduit and having a one-way valve; and the first and second branch conduits on the discharge passage. and a radiator, or at a confluence of the first branch conduit and the return passage, the one-way valve has a conical valve seat, a conical or spherical shape, and is made of a material. The valve body is made of resin or an elastic body, a spring that biases the valve body toward the valve seat, and a bearing that supports the spring and the valve body. An engine cooling device characterized by being formed in a conical shape such that a minute gap is formed between the engine cooling device and the body when the valve is opened.