FR2665742B1 - NON-RETURN VALVE FOR A GAS CONDUIT. - Google Patents

NON-RETURN VALVE FOR A GAS CONDUIT.

Info

Publication number
FR2665742B1
FR2665742B1 FR9107584A FR9107584A FR2665742B1 FR 2665742 B1 FR2665742 B1 FR 2665742B1 FR 9107584 A FR9107584 A FR 9107584A FR 9107584 A FR9107584 A FR 9107584A FR 2665742 B1 FR2665742 B1 FR 2665742B1
Authority
FR
France
Prior art keywords
return valve
gas conduit
conduit
gas
return
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.)
Expired - Fee Related
Application number
FR9107584A
Other languages
French (fr)
Other versions
FR2665742A1 (en
Inventor
Meyer Otto
Schauer Edwin
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of FR2665742A1 publication Critical patent/FR2665742A1/en
Application granted granted Critical
Publication of FR2665742B1 publication Critical patent/FR2665742B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
FR9107584A 1990-08-09 1991-06-20 NON-RETURN VALVE FOR A GAS CONDUIT. Expired - Fee Related FR2665742B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4025266A DE4025266A1 (en) 1990-08-09 1990-08-09 CHECK VALVE FOR A GAS PIPE

Publications (2)

Publication Number Publication Date
FR2665742A1 FR2665742A1 (en) 1992-02-14
FR2665742B1 true FR2665742B1 (en) 1993-04-09

Family

ID=6411942

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9107584A Expired - Fee Related FR2665742B1 (en) 1990-08-09 1991-06-20 NON-RETURN VALVE FOR A GAS CONDUIT.

Country Status (4)

Country Link
DE (1) DE4025266A1 (en)
FR (1) FR2665742B1 (en)
GB (1) GB2246841B (en)
IT (1) IT1248352B (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52102919A (en) * 1976-02-24 1977-08-29 Toyota Motor Corp System for supplying secondary air for cleaning exhaust gas in interna l combustion engine
JPS5393218A (en) * 1977-01-26 1978-08-16 Nippon Denso Co Ltd Secondary air control system
JPS5924856Y2 (en) * 1977-07-21 1984-07-23 株式会社デンソー Thermostatic valve for internal combustion engine intake air temperature compensation

Also Published As

Publication number Publication date
GB9115103D0 (en) 1991-08-28
FR2665742A1 (en) 1992-02-14
GB2246841A (en) 1992-02-12
GB2246841B (en) 1994-01-05
ITRM910461A0 (en) 1991-06-25
IT1248352B (en) 1995-01-05
ITRM910461A1 (en) 1992-12-25
DE4025266A1 (en) 1992-02-13

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Legal Events

Date Code Title Description
CJ Change in legal form
ST Notification of lapse
ST Notification of lapse