GB2246841B - Non-return valve for a gas line - Google Patents

Non-return valve for a gas line

Info

Publication number
GB2246841B
GB2246841B GB9115103A GB9115103A GB2246841B GB 2246841 B GB2246841 B GB 2246841B GB 9115103 A GB9115103 A GB 9115103A GB 9115103 A GB9115103 A GB 9115103A GB 2246841 B GB2246841 B GB 2246841B
Authority
GB
United Kingdom
Prior art keywords
return valve
gas line
return
valve
gas
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
GB9115103A
Other versions
GB2246841A (en
GB9115103D0 (en
Inventor
Otto Meyer
Edwin Schauer
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 GB9115103D0 publication Critical patent/GB9115103D0/en
Publication of GB2246841A publication Critical patent/GB2246841A/en
Application granted granted Critical
Publication of GB2246841B publication Critical patent/GB2246841B/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

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)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
GB9115103A 1990-08-09 1991-07-12 Non-return valve for a gas line Expired - Fee Related GB2246841B (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 (3)

Publication Number Publication Date
GB9115103D0 GB9115103D0 (en) 1991-08-28
GB2246841A GB2246841A (en) 1992-02-12
GB2246841B true GB2246841B (en) 1994-01-05

Family

ID=6411942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9115103A Expired - Fee Related GB2246841B (en) 1990-08-09 1991-07-12 Non-return valve for a gas line

Country Status (4)

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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001414A (en) * 1977-07-21 1979-01-31 Toyota Motor Co Ltd Thermostatic valves for intake air temperature compensation for internal combustion engines

Family Cites Families (2)

* 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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001414A (en) * 1977-07-21 1979-01-31 Toyota Motor Co Ltd Thermostatic valves for intake air temperature compensation for internal combustion engines

Also Published As

Publication number Publication date
GB2246841A (en) 1992-02-12
FR2665742B1 (en) 1993-04-09
DE4025266A1 (en) 1992-02-13
IT1248352B (en) 1995-01-05
GB9115103D0 (en) 1991-08-28
ITRM910461A1 (en) 1992-12-25
ITRM910461A0 (en) 1991-06-25
FR2665742A1 (en) 1992-02-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970712