FR2402820A1 - AIR CONTROL VALVE - Google Patents

AIR CONTROL VALVE

Info

Publication number
FR2402820A1
FR2402820A1 FR7824167A FR7824167A FR2402820A1 FR 2402820 A1 FR2402820 A1 FR 2402820A1 FR 7824167 A FR7824167 A FR 7824167A FR 7824167 A FR7824167 A FR 7824167A FR 2402820 A1 FR2402820 A1 FR 2402820A1
Authority
FR
France
Prior art keywords
valve
air
air control
control valve
valve element
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.)
Withdrawn
Application number
FR7824167A
Other languages
French (fr)
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.)
Fram Corp
Original Assignee
Fram Corp
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 Fram Corp filed Critical Fram Corp
Publication of FR2402820A1 publication Critical patent/FR2402820A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • F01N3/227—Control of additional air supply only, e.g. using by-passes or variable air pump drives using pneumatically operated valves, e.g. membrane valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/22—Control of additional air supply only, e.g. using by-passes or variable air pump drives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

L'invention concerne les valves de commande d'air destinées à aiguiller un flux d'air comprimé depuis une entrée vers l'une ou l'autre de deux sorties. Pour réduire les forces nécessaires pour actionner la valve et, par conséquent, les dimensions du dispositif d'actionnement, l'élément de valve est accouplé à deux pistons annexes qui équilibrent systématiquement la force exercée par l'air sous pression sur l'élément de valve. Application aux circuits d'injection d'air dans les systèmes anti-pollution pour moteurs à combustion interne, dont la valve peut être actionnée par dépression.The invention relates to air control valves for directing a flow of compressed air from one inlet to one or the other of two outlets. To reduce the forces required to actuate the valve and hence the dimensions of the actuator, the valve element is coupled to two adjoining pistons which systematically balance the force exerted by the pressurized air on the valve element. valve. Application to air injection circuits in anti-pollution systems for internal combustion engines, the valve of which can be actuated by vacuum.

FR7824167A 1977-09-07 1978-08-18 AIR CONTROL VALVE Withdrawn FR2402820A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83122077A 1977-09-07 1977-09-07

Publications (1)

Publication Number Publication Date
FR2402820A1 true FR2402820A1 (en) 1979-04-06

Family

ID=25258569

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824167A Withdrawn FR2402820A1 (en) 1977-09-07 1978-08-18 AIR CONTROL VALVE

Country Status (6)

Country Link
JP (1) JPS5449616A (en)
DE (1) DE2838885A1 (en)
FR (1) FR2402820A1 (en)
GB (1) GB2004030A (en)
IT (1) IT1098493B (en)
SE (1) SE7809341A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4393855A (en) * 1980-12-11 1983-07-19 Andre Mandar Correcting device for the combustion of engines of vehicles during transitional phases of operation
US4556077A (en) * 1983-12-20 1985-12-03 Allied Corporation Switching valve for a fuel supply system
JP2001182842A (en) * 1999-12-24 2001-07-06 Ichimaru Giken:Kk Piston valve
JP4805465B2 (en) * 2001-02-21 2011-11-02 株式会社アサヒ・エンタープライズ Control valve
JP5067080B2 (en) * 2007-08-30 2012-11-07 株式会社ノーリツ Backflow prevention valve, backflow prevention device having the same, hot water supply device and hot water supply system
RU2020112880A (en) * 2017-09-29 2021-10-29 Фишер Контролз Интернешнел Ллс RELAY VALVE AND POWER BALANCING METHOD
CN112013152B (en) * 2020-08-05 2022-03-15 国能龙源环保有限公司 Liquid level control valve, liquid level control system and liquid level control method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875784A (en) * 1954-01-05 1959-03-03 Bendix Aviat Corp Three-way solenoid valve
FR1195936A (en) * 1958-05-16 1959-11-20 Three-way control valve
US3304048A (en) * 1963-10-14 1967-02-14 Roberts Simon Balanced valve
US3797803A (en) * 1971-05-15 1974-03-19 Toyota Motor Co Ltd Control valve assembly for a gas passageway
US3823556A (en) * 1971-05-19 1974-07-16 Toyota Motor Co Ltd Change-over valve assembly for a gas passageway

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875784A (en) * 1954-01-05 1959-03-03 Bendix Aviat Corp Three-way solenoid valve
FR1195936A (en) * 1958-05-16 1959-11-20 Three-way control valve
US3304048A (en) * 1963-10-14 1967-02-14 Roberts Simon Balanced valve
US3797803A (en) * 1971-05-15 1974-03-19 Toyota Motor Co Ltd Control valve assembly for a gas passageway
US3823556A (en) * 1971-05-19 1974-07-16 Toyota Motor Co Ltd Change-over valve assembly for a gas passageway

Also Published As

Publication number Publication date
SE7809341A (en) 1979-03-07
DE2838885A1 (en) 1979-03-15
IT7827313A0 (en) 1978-09-05
IT1098493B (en) 1985-09-07
JPS5449616A (en) 1979-04-19
GB2004030A (en) 1979-03-21

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Legal Events

Date Code Title Description
ST Notification of lapse