JPS57208378A - Negative pressure controlling valve - Google Patents

Negative pressure controlling valve

Info

Publication number
JPS57208378A
JPS57208378A JP9460981A JP9460981A JPS57208378A JP S57208378 A JPS57208378 A JP S57208378A JP 9460981 A JP9460981 A JP 9460981A JP 9460981 A JP9460981 A JP 9460981A JP S57208378 A JPS57208378 A JP S57208378A
Authority
JP
Japan
Prior art keywords
negative pressure
diaphragm chamber
spring
holding member
chamber
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
JP9460981A
Other languages
Japanese (ja)
Inventor
Michikatsu Naito
Kiyotoshi Yano
Kazuo Ito
Kunihiro Tsuzuki
Masaaki Tanaka
Michio Kawagoe
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.)
Denso Corp
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
NipponDenso 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 Toyota Motor Corp, NipponDenso Co Ltd filed Critical Toyota Motor Corp
Priority to JP9460981A priority Critical patent/JPS57208378A/en
Priority to US06/388,659 priority patent/US4598729A/en
Publication of JPS57208378A publication Critical patent/JPS57208378A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/55—Systems for actuating EGR valves using vacuum actuators
    • F02M26/56—Systems for actuating EGR valves using vacuum actuators having pressure modulation valves
    • F02M26/57—Systems for actuating EGR valves using vacuum actuators having pressure modulation valves using electronic means, e.g. electromagnetic valves
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
    • G05D16/2022—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means actuated by a proportional solenoid
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2093—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power
    • G05D16/2095—Control of fluid pressure characterised by the use of electric means with combination of electric and non-electric auxiliary power using membranes within the main valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

PURPOSE:To effectively control the negative pressure in a diaphragm chamber in accordance with th state of engine load by a method wherein a valve holding member equipped between the diaphragm chamber and a chamber open to the atmosphere is adjustably supported by a plurality of balance springs and a moving rod. CONSTITUTION:When engine load increases, a coil 42 is excited through a load sensor 45 and a operational processing circuit 46 in order to apply an attractive force to a gap 44. Accordingly, even under the condition that the negative pressure in the diaphragm chamber is low, the force of the spring 34 surpasses that of the spring 35, resulting in shifting the moving rod 36 downward, lowering the valve holding member 32 and communicating the diaphragm chamber 26 to the chamber open to the atmosphere 39. Consequently, when the pressures in both the chambers 26 and 39 are equal to each other, the valve holding member 32 is raised by means of the spring 35 and the diaphragm chamber 26 is made vacuum for the setting of negative pressure by means of a vacuum pump 31. In other words, the setting of negative pressure can be performed in accordance with the state of engine load.
JP9460981A 1981-06-19 1981-06-19 Negative pressure controlling valve Pending JPS57208378A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP9460981A JPS57208378A (en) 1981-06-19 1981-06-19 Negative pressure controlling valve
US06/388,659 US4598729A (en) 1981-06-19 1982-06-15 Negative pressure control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9460981A JPS57208378A (en) 1981-06-19 1981-06-19 Negative pressure controlling valve

Publications (1)

Publication Number Publication Date
JPS57208378A true JPS57208378A (en) 1982-12-21

Family

ID=14114985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9460981A Pending JPS57208378A (en) 1981-06-19 1981-06-19 Negative pressure controlling valve

Country Status (1)

Country Link
JP (1) JPS57208378A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124399A2 (en) * 1983-04-01 1984-11-07 Canadian Fram Limited Electric vacuum regulator
US8459195B2 (en) 2011-04-28 2013-06-11 Michael H. IRVING Self load sensing circuit board controller diaphragm pump
CN110126866A (en) * 2019-04-30 2019-08-16 杭州电子科技大学 A kind of negative-pressure balancing and mechanical intelligent liquid supply device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124399A2 (en) * 1983-04-01 1984-11-07 Canadian Fram Limited Electric vacuum regulator
EP0124399A3 (en) * 1983-04-01 1986-01-29 Canadian Fram Limited Electric vacuum regulator
US8459195B2 (en) 2011-04-28 2013-06-11 Michael H. IRVING Self load sensing circuit board controller diaphragm pump
CN110126866A (en) * 2019-04-30 2019-08-16 杭州电子科技大学 A kind of negative-pressure balancing and mechanical intelligent liquid supply device

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