FR2147624A5 - - Google Patents
Info
- Publication number
- FR2147624A5 FR2147624A5 FR7226397A FR7226397A FR2147624A5 FR 2147624 A5 FR2147624 A5 FR 2147624A5 FR 7226397 A FR7226397 A FR 7226397A FR 7226397 A FR7226397 A FR 7226397A FR 2147624 A5 FR2147624 A5 FR 2147624A5
- Authority
- FR
- France
- 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
Links
Classifications
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- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3476171A GB1361854A (en) | 1971-07-23 | 1971-07-23 | Engine exhaust systems for vehicles |
GB5618271 | 1971-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2147624A5 true FR2147624A5 (en) | 1973-03-09 |
Family
ID=26262432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7226397A Expired FR2147624A5 (en) | 1971-07-23 | 1972-07-21 |
Country Status (5)
Country | Link |
---|---|
AU (1) | AU4482172A (en) |
DE (1) | DE2235596A1 (en) |
FR (1) | FR2147624A5 (en) |
GB (1) | GB1361854A (en) |
IT (1) | IT964757B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5385217A (en) * | 1977-01-06 | 1978-07-27 | Toyota Motor Corp | Controller for secondary air of internal combustion engine |
JPS5411211U (en) * | 1977-06-28 | 1979-01-24 |
-
1971
- 1971-07-23 GB GB3476171A patent/GB1361854A/en not_active Expired
-
1972
- 1972-07-20 DE DE2235596A patent/DE2235596A1/en active Pending
- 1972-07-20 AU AU44821/72A patent/AU4482172A/en not_active Expired
- 1972-07-21 FR FR7226397A patent/FR2147624A5/fr not_active Expired
- 1972-07-21 IT IT69384/72A patent/IT964757B/en active
Also Published As
Publication number | Publication date |
---|---|
IT964757B (en) | 1974-01-31 |
DE2235596A1 (en) | 1973-02-01 |
AU4482172A (en) | 1974-01-24 |
GB1361854A (en) | 1974-07-30 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |