JPH0250027U

JPH0250027U -

Info

Publication number: JPH0250027U
Application number: JP12688388U
Authority: JP
Priority date: 1988-09-28
Filing date: 1988-09-28
Publication date: 1990-04-06

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図は要部の縦断側面図である。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、６１，６２……連通路、６
３ａ，６３ｂ……切換え機構、６４……隔壁、６
５……第１室、６６……第２室、６７……上部空
間、６９……注水口部、７０……絞り、７１……
サーモスタツト、７３ａ……ピストン、７３ｂ…
…弁体、７４……連通管。 FIG. 1 is a block diagram schematically showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional side view of the main parts. 1...Engine, 2...Water pump, 3...
...Radiator, 4...Thermostat valve, 5
...Supercharger, 5a ... Cooling water jacket of supercharger, 6 ... Water storage tank, 61, 62 ... Communication path, 6
3a, 63b... switching mechanism, 64... bulkhead, 6
5...First chamber, 66...Second chamber, 67...Upper space, 69...Water inlet, 70...Aperture, 71...
Thermostat, 73a... Piston, 73b...
...Valve body, 74...Communication pipe.

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 water storage part is formed at a position higher than the supercharger cooling part and in communication with the outlet side thereof, and the outlet side of the supercharger cooling part is communicated with the upper space of the water storage part, and the water storage part is connected to the upper space of the water storage part. The interior of the chamber is divided into a first chamber and a second chamber that can create a head pressure difference in the storage level of cooling water flowing in from the upper space by a partition wall installed inside the chamber, and the bottom of each of these chambers and the circulating water are separated. A switching valve that is switched and operated according to the temperature of the cooling water passing through the supercharger cooling section is installed in the communication path that communicates with the return path of the circuit,
During engine operation when the cooling water temperature is below the set temperature, a circulation circuit is formed through the second chamber with a low head pressure difference, and when the engine is stopped and the water vapor temperature from the supercharger exceeds the set temperature. A cooling device for a supercharger attached to an engine, characterized in that the switching valve is operated to switch so that a circulation circuit is formed through the first chamber having a high head pressure difference.