JPS54159579A - Pressure control system - Google Patents

Pressure control system

Info

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
Application number
JP6808378A
Other languages
Japanese (ja)
Inventor
Masami Inada
Shuji Okumura
Shuzo Wanibe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisin Corp
Original Assignee
Aisin Seiki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Priority to JP6808378A priority Critical patent/JPS54159579A/en
Publication of JPS54159579A publication Critical patent/JPS54159579A/en
Pending legal-status Critical Current

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
JP6808378A 1978-06-06 1978-06-06 Pressure control system Pending JPS54159579A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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