JPH02131024U

JPH02131024U -

Info

Publication number: JPH02131024U
Application number: JP3827789U
Authority: JP
Priority date: 1989-03-31
Filing date: 1989-03-31
Publication date: 1990-10-30

Description

[Brief explanation of drawings]

第１図〜第３図は本考案の実施例を示し、第１
図は取り外し操作時を示す水冷エンジンの加圧式
ラジエータ・キヤツプの縦断面図、第２図は通常
時の同キヤツプの縦断面図、第３図は他の実施例
を示すラジエータ・キヤツプの原理図、第４図は
従来技術を示す第２図相当図である。１……ラジエータ、２……キヤツプ、３……タ
ンク室、４……キヤツプ室、５……正圧弁、６…
…負圧弁、１０……３の出口部、１２…圧抜き具
、１３……押し下げ操作部、１４……操作力伝達
機構、１９……調圧バネ、２４……戻しバネ。 Figures 1 to 3 show embodiments of the present invention;
The figure is a longitudinal sectional view of a pressurized radiator cap of a water-cooled engine during removal operation, Figure 2 is a longitudinal sectional view of the same cap in normal operation, and Figure 3 is a principle diagram of the radiator cap showing another embodiment. , FIG. 4 is a diagram corresponding to FIG. 2 showing the prior art. 1...Radiator, 2...Cap, 3...Tank chamber, 4...Cap chamber, 5...Positive pressure valve, 6...
. . . Negative pressure valve, 10 . . . 3 outlet, 12 . . . Pressure release tool, 13 .

Claims

[Scope of Claim for Utility Model Registration] A positive pressure valve 5 is provided under the cap 2 and pressed downward by a pressure regulating spring 19, and a negative pressure valve 6 is returned to the underside of the positive pressure valve 5 and pressed upward by a spring 24. In the pressurized radiator cap of the water-cooled engine provided, a pressure relief tool 12 is passed through the cap 2 so as to be movable up and down, and a push-down operation part 1 on the upper part of the pressure relief tool 12 is inserted.
3 is pushed down on the upper part of the cap 2 so that the operation part 13 protrudes above the cap 2, and the lower part of the pressure release tool 12 is interlocked and connected to at least one of the negative pressure valve 6 and the positive pressure valve 5 so that the valve can be opened. Pressurized radiator cap for water-cooled engines.