JPS54159579A - Pressure control system - Google Patents
Pressure control systemInfo
- Publication number
- JPS54159579A JPS54159579A JP6808378A JP6808378A JPS54159579A JP S54159579 A JPS54159579 A JP S54159579A JP 6808378 A JP6808378 A JP 6808378A JP 6808378 A JP6808378 A JP 6808378A JP S54159579 A JPS54159579 A JP S54159579A
- Authority
- JP
- Japan
- Prior art keywords
- tank
- passage
- signal
- valve
- pressure
- 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.)
- Pending
Links
Abstract
PURPOSE: To prevent a delay of response and a hysteresis by operating the change valve to hold a desired value of fluid pressure in the tank automatically according to a signal of electrically detected pressure in the tank.
CONSTITUTION: The negative pressure source 40 connected to the intake manifold of car, for example, is connected to the change valve 42 through the passage 41, another pressure source 43 such as atmospheric pressure is connected to said valve 42 through the passage 44, the output passage 45 of the valve 42 is connected to the tank 46. Fluid pressure in the tank 46 is detected by the sensor 47, its signal is transmitted to the control circuit 48. Said signal is compared with the reference signal in the circuit 48, an electric signal 49 corresponding to the difference obtained by said comparison in sent to the change valve 42. By this way, the passage 41 or 44 is selectively connected to the passage 45 to hold a desired value of the fluid pressure in the tank 46.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6808378A JPS54159579A (en) | 1978-06-06 | 1978-06-06 | Pressure control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6808378A JPS54159579A (en) | 1978-06-06 | 1978-06-06 | Pressure control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54159579A true JPS54159579A (en) | 1979-12-17 |
Family
ID=13363492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6808378A Pending JPS54159579A (en) | 1978-06-06 | 1978-06-06 | Pressure control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54159579A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60139544A (en) * | 1983-12-27 | 1985-07-24 | Nissan Motor Co Ltd | Automobile's cooler |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51151429A (en) * | 1975-06-20 | 1976-12-25 | Hitachi Ltd | Minos pressure control device |
JPS52122792A (en) * | 1976-04-08 | 1977-10-15 | Ishikawajima Harima Heavy Ind Co Ltd | Fluid pressure control system |
-
1978
- 1978-06-06 JP JP6808378A patent/JPS54159579A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51151429A (en) * | 1975-06-20 | 1976-12-25 | Hitachi Ltd | Minos pressure control device |
JPS52122792A (en) * | 1976-04-08 | 1977-10-15 | Ishikawajima Harima Heavy Ind Co Ltd | Fluid pressure control system |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60139544A (en) * | 1983-12-27 | 1985-07-24 | Nissan Motor Co Ltd | Automobile's cooler |
JPH0544379B2 (en) * | 1983-12-27 | 1993-07-06 | Nissan Motor |
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