JPH0220708U

JPH0220708U -

Info

Publication number: JPH0220708U
Application number: JP9789988U
Authority: JP
Priority date: 1988-07-26
Filing date: 1988-07-26
Publication date: 1990-02-13

Description

[Brief explanation of drawings]

第１図ａ，ｂは本考案の第１の実施例を示す断
面図、第２図ａ，ｂは本考案の第２の実施例を示
す断面図、第３図は自動車エンジンの潤滑系を示
す油回路図である。図面中、１０，１０′はオイルクーラバイパス
バルブ、１１はシリンダ部、１２はスリーブ弁、
１２ａは壁、１２ｂ，１２ｂ′，１２ｃ，１２ｃ
′は油孔、１３，１３′はバイアスバネ、１４，
１４′は作動バネ、ｌ_０，ｌ_１，ｌ_２は油路であ
る。 Figures 1a and b are sectional views showing the first embodiment of the present invention, Figures 2a and b are sectional views showing the second embodiment of the invention, and Figure 3 shows the lubrication system of an automobile engine. It is an oil circuit diagram shown. In the drawing, 10 and 10' are oil cooler bypass valves, 11 is a cylinder part, 12 is a sleeve valve,
12a is a wall, 12b, 12b', 12c, 12c
' is an oil hole, 13, 13' is a bias spring, 14,
14' is an operating spring, and l ₀ , l ₁ , and l ₂ are oil passages.

Claims

[Scope of utility model registration request]

A cylinder part that is closed at one end and open at the other end, to which lubricating oil is sent from the one end side by an oil pump, a first oil passage that communicates with the oil cooler from the circumferential surface of the cylinder part, and a second oil passage that guides lubricating oil from the surface avoiding the oil cooler;
It is inserted into the cylinder part so as to be able to reciprocate over a certain length and is closed at one end, and furthermore, when the first oil hole faces the first oil passage and the oil hole deviates from this state, it enters the second oil passage. A sleeve valve has a second oil hole formed on its circumferential surface to face each other, a bias spring biases the sleeve valve in one direction, and when the lubricating oil becomes hot, the sleeve valve moves in the opposite direction against the force of the bias spring. An oil cooler bypass valve characterized by having an actuation spring made of a shape memory alloy that moves in the direction.