JPS6257735U

JPS6257735U -

Info

Publication number: JPS6257735U
Application number: JP14917985U
Authority: JP
Priority date: 1985-09-30
Filing date: 1985-09-30
Publication date: 1987-04-10

Description

[Brief explanation of drawings]

第１図は本考案の一実施例に係る過給圧制御装
置の一部を断面にして示した正面図、第２図はア
クチユエータとロツド部分の断面図、第３図はロ
ツドとバルブとの連結を示す斜視図、第４図はロ
ツドとシヤフトとの連結を示す正面図、第５図は
過給圧特性図、第６図は本考案に係る別のタイプ
の過給圧制御装置の一部断面正面図、である。１０……面積切替バルブ、１４……ウエストゲ
ートバルブ、２０……第１のダイアフラム、２１
……第２のダイアフラム、２８……第１のロツド
、２９……第２のロツド、３７……連通路。 Fig. 1 is a partially sectional front view of a boost pressure control device according to an embodiment of the present invention, Fig. 2 is a sectional view of the actuator and rod portion, and Fig. 3 is a cross-sectional view of the actuator and rod portion. FIG. 4 is a perspective view showing the connection, FIG. 4 is a front view showing the connection between the rod and the shaft, FIG. 5 is a boost pressure characteristic diagram, and FIG. 6 is one of another type of boost pressure control device according to the present invention. FIG. 10... Area switching valve, 14... Waste gate valve, 20... First diaphragm, 21
...Second diaphragm, 28...First rod, 29...Second rod, 37...Communication path.

Claims

[Scope of utility model registration request]

In a turbine scroll variable area turbocharger equipped with both an area switching valve and a wastegate valve, a first diaphragm for driving the area switching valve and a second diaphragm for driving the wastegate valve are connected in series, and A diaphragm is connected to the area selector valve via a first rod, a second diaphragm is connected to the wastegate valve via a second rod coaxial with the first rod, and the second diaphragm is connected to the wastegate valve via a second rod coaxially with the first rod. A supercharging pressure control device characterized in that a valve opens when the first diaphragm is displaced by receiving supercharging pressure of a certain value or more to form a communication passage that guides supercharging pressure to the second diaphragm.