JPS5656929A - Apparatus for controlling exhaust-gas by-pass valve for turbocharger - Google Patents
Apparatus for controlling exhaust-gas by-pass valve for turbochargerInfo
- Publication number
- JPS5656929A JPS5656929A JP13244579A JP13244579A JPS5656929A JP S5656929 A JPS5656929 A JP S5656929A JP 13244579 A JP13244579 A JP 13244579A JP 13244579 A JP13244579 A JP 13244579A JP S5656929 A JPS5656929 A JP S5656929A
- Authority
- JP
- Japan
- Prior art keywords
- low
- engine
- pipe
- pressure chamber
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Supercharger (AREA)
Abstract
PURPOSE: To prevent that air not passed through an intake throttle valve is supplied to engine even if accuracy of the axial rail of a rod passed through a pressure chamber of a diaphragm actuator, by breaking communication between the inlet portion of a compressor and the pressure chamber of said diaphragm actuator at the time of low-speed, low-load operation of engine.
CONSTITUTION: Since an intake throttle valve 2 is kept in its almost fully closed position during low-speed, low-load operation of engine, the amount of intake air is reduced if a compressor 1a is rotated at a high speed, so that pressure in downstream intake pipe 3b is lowered. When the pressure in the downstream intake pipe 3b becomes lower than a predetermined level, communication between an air pipe 11 and a pressure chamber 4a of an exhaust-gas by-pass valve 8 is broken by a shut-off valve 12 provided in a signalling pipe 14. Therefore, air leaked into pressure chamber 4a through a seal 10 with a rod 9 passed therethrough by the function of a high negative pressure in pipe 3b is prevented from being supplied to engine by means of shut-off valve 12, so that low-speed, low-load operation of engine can be rendered stable.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13244579A JPS5656929A (en) | 1979-10-16 | 1979-10-16 | Apparatus for controlling exhaust-gas by-pass valve for turbocharger |
US06/192,164 US4391184A (en) | 1979-10-06 | 1980-09-30 | Diaphragm actuator |
DE3037490A DE3037490C2 (en) | 1979-10-06 | 1980-10-03 | Diaphragm actuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13244579A JPS5656929A (en) | 1979-10-16 | 1979-10-16 | Apparatus for controlling exhaust-gas by-pass valve for turbocharger |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5656929A true JPS5656929A (en) | 1981-05-19 |
JPS6218735B2 JPS6218735B2 (en) | 1987-04-24 |
Family
ID=15081523
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13244579A Granted JPS5656929A (en) | 1979-10-06 | 1979-10-16 | Apparatus for controlling exhaust-gas by-pass valve for turbocharger |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5656929A (en) |
-
1979
- 1979-10-16 JP JP13244579A patent/JPS5656929A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6218735B2 (en) | 1987-04-24 |
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