JPH0254329U

JPH0254329U -

Info

Publication number: JPH0254329U
Application number: JP13473788U
Authority: JP
Priority date: 1988-10-14
Filing date: 1988-10-14
Publication date: 1990-04-19

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を概略的に示す構成
図、第２図は要部の縦断面図、第３図は本考案に
よる他の実施例を示す要部の縦断面図である。１……エンジン、２……ウオータポンプ、３…
…ラジエータ、４……サーモスタツトバルブ、５
……過給機、５ａ……過給機の冷却水ジヤケツト
、６……貯水タンク、７……一方向弁、８……冷
却水通路、９……一方向弁、１０……貯水タンク
、１５……冷却水通路、１６……冷却水戻り通路
、１９……電磁弁、２０，２１……切換弁、２２
，２３，２４，３０……連通路、２２ａ，２３ａ
……連通口部、２５，２６……サーモスタツトバ
ルブ、２５ａ，２６ａ……弁体、２５ｂ，２６ｂ
……弁体、２７……水温センサ、２９……コント
ロールユニツト。 FIG. 1 is a block diagram schematically showing one embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of the main part, and FIG. 3 is a vertical cross-sectional view of the main part showing another embodiment of the present invention. . 1...Engine, 2...Water pump, 3...
...Radiator, 4...Thermostat valve, 5
...Supercharger, 5a... Cooling water jacket of supercharger, 6... Water storage tank, 7... One-way valve, 8... Cooling water passage, 9... One-way valve, 10... Water storage tank, 15...Cooling water passage, 16...Cooling water return passage, 19...Solenoid valve, 20, 21...Switching valve, 22
, 23, 24, 30...Communication path, 22a, 23a
...Communication port, 25, 26...Thermostat valve, 25a, 26a...Valve body, 25b, 26b
... Valve body, 27 ... Water temperature sensor, 29 ... Control unit.

Claims

[Scope of Claim for Utility Model Registration] It has a circulating water circuit for cooling the supercharger that branches off from the engine cooling water path and circulates a part of the cooling water to the cooling part of the supercharger. , a plurality of water storage parts are formed at a position higher than the supercharger cooling part and in communication with the cooling water passage, and the cooling water of the inlet side and outlet side passages of the plurality of water storage parts and the supercharger cooling part is formed. A switching valve that is switched and operated depending on the cooling water temperature is installed in the communication part with the passage, and a switching valve that is switched and operated depending on the cooling water temperature is installed on the side of the water storage part, which is higher than the radiator in the engine cooling water path and between the upper part of the radiator, the engine cooling water path, and supercharging. A circulating water circuit is formed that communicates with the engine cooling water path and passes through one water storage section depending on the engine operating state or the set temperature of the cooling water during engine operation, and a circulating water circuit that bypasses the other water storage section. One water storage section is connected to a water inlet section having a pressure regulating valve at the top of the other water storage section, and the temperature of the cooling water flowing out from the cooling section of the supercharger is connected to the water inlet section of one water storage section. A solenoid valve is installed that opens and closes when the engine is stopped, and when the engine is stopped, the switching valve is switched so that a circulating water circuit is formed in which the low-temperature cooling water held in the water storage section flows into the cooling section of the supercharger. A cooling device for an engine-attached supercharger, which is characterized by: