JPS644820U

JPS644820U -

Info

Publication number: JPS644820U
Application number: JP9917887U
Authority: JP
Priority date: 1987-06-26
Filing date: 1987-06-26
Publication date: 1989-01-12

Description

[Brief explanation of the drawing]

第１図は本装置の要部縦断面略図を示し、その
弁４が閉塞状態を示す。又、第２図は弁４が開放
された状態を示すものである。第３図は従来型装
置の縦断面図。１……タンク本体、２……ホース、３……パイ
プ部、４……弁、５……バネ、６……弁本体、７
……孔、８……チユーブプレート、９……チユー
ブ、１０……フイラネツク、１２……キヤツプ本
体、１３……コイルバネ、１４……正圧弁、１５
……負圧弁。 FIG. 1 shows a schematic vertical cross-sectional view of the main part of this device, and shows the valve 4 in a closed state. Further, FIG. 2 shows a state in which the valve 4 is opened. FIG. 3 is a longitudinal sectional view of a conventional device. 1...Tank body, 2...Hose, 3...Pipe section, 4...Valve, 5...Spring, 6...Valve body, 7
... hole, 8 ... tube plate, 9 ... tube, 10 ... fillet neck, 12 ... cap body, 13 ... coil spring, 14 ... positive pressure valve, 15
... Negative pressure valve.

Claims

[Scope of utility model registration request]

A short pipe portion 3 is provided on the side wall of the radiator tank main body 1 into which engine cooling water flows, and is protruding from the side wall of the radiator tank main body 1 so as to communicate with the main body 1, and whose tip is connected to the surge tank connection hose 2. a valve 4 that is connected to or installed in the tank body 1 to open and close the flow path of the pipe section 3;
When the internal pressure becomes more than a predetermined negative pressure with respect to the atmosphere, the valve 4 is opened against the urging force, and when the temperature of the cooling water in the main body 1 becomes higher than a predetermined temperature, the shape memory A pressure regulating device for a radiator tank, comprising a spring 5 made of a shape memory alloy that opens the valve 4 when actuated.