JPS6043148U

JPS6043148U - Air flow control valve for fuel-injected engines

Info

Publication number: JPS6043148U
Application number: JP13686783U
Authority: JP
Inventors: 直規杉田
Original assignee: トヨタ自動車株式会社
Priority date: 1983-09-02
Filing date: 1983-09-02
Publication date: 1985-03-27
Also published as: JPH0248692Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、従来の燃料噴射式エンジンの空気量制御弁の
縦断面図、第２図は、本考案の一実施例に係る燃料噴射
式エンジンの空気量制御弁の縦断面図、第３図は、第２
図の第１の弁体と第２の弁体との拡大縦断面図、第４図
は、第３図の作動説明図、第５図は、第３図の他の作動
説明図である。１・・・・・・スロットル弁、４・・・・・・空気量制
御弁′、６・・・・・・ワックス型駆動装置（駆動装置
）、１４・・・・・・吸入空気通路、１５・・・・・・
空気入口ポート、１６・・・・・・空気出口ポート、１
７・・・・・・バルブボデー、１８・・・・・・空気取
入パイプ、１９・・・・・・空気排出パイプ、　２０・
・・・・・サージタンク（吸入空気通路）、２１・・・
・・・第１の空気通路、２２・・・・・・第２の空気通
路、２３・・・・・・第１の弁ポート、２４・・・・・
・第２の弁ポート、４１・・・・・・第１の弁体、４２
・・・・・・第２の弁体。FIG. 1 is a vertical sectional view of an air amount control valve of a conventional fuel injection type engine, FIG. 2 is a longitudinal sectional view of an air amount control valve of a fuel injection type engine according to an embodiment of the present invention, and FIG. The figure shows the second
FIG. 4 is an enlarged longitudinal sectional view of the first valve body and the second valve body in the figure, FIG. 4 is an explanatory diagram of the operation in FIG. 3, and FIG. 5 is an explanatory diagram of another operation in FIG. 3. 1...Throttle valve, 4...Air amount control valve', 6...Wax type drive device (drive device), 14...Intake air passage, 15...
Air inlet port, 16... Air outlet port, 1
7... Valve body, 18... Air intake pipe, 19... Air exhaust pipe, 20.
...Surge tank (intake air passage), 21...
...First air passage, 22...Second air passage, 23...First valve port, 24...
・Second valve port, 41...First valve body, 42
...Second valve body.

Claims

[Scope of utility model registration request]

a valve body with an air inlet port and an air outlet port, the air inlet port being connected to an intake air passage upstream of a throttle valve of the fuel-injected engine through an air intake pipe; (The air outlet port is connected to the intake air passage downstream of the throttle valve through an air exhaust pipe, and the valve body has a first air passage connecting the air inlet port and the air outlet port.) a passage and a second air passage communicating the air inlet port and the air outlet port are provided in parallel;
A first valve port and a second valve port are provided in the middle of the air passage and the second air passage, respectively, and the first valve port is provided inside the valve body. A first valve body that opens and closes the second valve port, and a second valve body that opens and closes the second valve port.
The first valve body and the second valve body are driven by a drive device that responds to the temperature of the engine cooling water of the fuel injection engine, and the drive device 1 or When the temperature of the engine cooling water is below a first predetermined temperature, the first valve body closes the first valve port;
When the temperature of the engine cooling water is higher than the first predetermined temperature, the first valve body opens the first valve port, and the driving device controls the engine cooling water so that the temperature of the engine cooling water is higher than the first predetermined temperature. When the temperature is below the second predetermined temperature, the second valve body is operated to open the second valve port, and when the temperature of the engine cooling water is higher than the second predetermined temperature, the second valve body is opened.
An air amount control valve for a fuel injection engine, characterized in that the valve body closes the second valve port, and the first predetermined temperature is higher than the second predetermined temperature.