GB1288707A - - Google Patents
Info
- Publication number
- GB1288707A GB1288707A GB1288707DA GB1288707A GB 1288707 A GB1288707 A GB 1288707A GB 1288707D A GB1288707D A GB 1288707DA GB 1288707 A GB1288707 A GB 1288707A
- Authority
- GB
- United Kingdom
- Prior art keywords
- exhaust gas
- engine
- mixture
- carburetter
- afterburner
- 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
Links
- 239000007789 gas Substances 0.000 abstract 8
- 239000000203 mixture Substances 0.000 abstract 7
- 238000002485 combustion reaction Methods 0.000 abstract 2
- 239000000446 fuel Substances 0.000 abstract 2
- 238000002347 injection Methods 0.000 abstract 2
- 239000007924 injection Substances 0.000 abstract 2
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
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
-
- 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
- F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Toxicology (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
1288707 Stratified fuel charges; charging under pressure; purifying exhaust; heating charge P AUGUST 19 April 1971 [17 Dec 1970] 22798/71 Heading F1B An I.C. engine has two carburetters or injection devices for supplying mixtures of different richness in different paths with a phase displacement therebetween to a cylinder with a sparking plug, the path adjacent the sparking plug having a pressure device for introducing the richer mixture only when the cylinder has been charged with fresh gas or combustion air to give a multilayer charge with the ignitable richer mixture in the region of the spark-plug and with air excess in the whole mixture. When the engine operates in the lower and middle speed and load ranges an engine-driven rotary compressor 13 draws rich mixture from a carburetter 10 which is downstream of a filter 12. The piston induces combustion air from a carburetter along passages 15, 17 to ports 3 to scavenge the burnt gases which leave via port 4. As the air is compressed by the rising piston the valve 9 is rotated to admit the rich mixture, which has been heated by a baffle plate 26, to form a rich layer in the region of the spark-plug 8. Exhaust gas may be mixed with air from the carburetter in the idling and low speed and load ranges. In the middle to upper speed and load range the carburetter 11 supplies a weak mixture which is enriched at full load. Exhaust gas passes through an afterburner 18 having a main passage 25 containing a control flap 19 and a surrounding afterburner chamber 22 which may contain a catalyst. Exhaust gas passes via passages 20 and the afterburner 22 to mix with exhaust gas from passage 25 in chamber 24. In the lower speed range the closed flap 19 directs all the exhaust gas through the afterburner and progressively reduces this as speed increases so that at full load 85-90% of the exhaust gas passes straight down passage 25. The engine may be a four-stroke or rotary piston engine. The carburetters may be replaced by two fuel injection systems.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2062323A DE2062323C3 (en) | 1970-12-17 | 1970-12-17 | Two-stroke internal combustion engine with stratified charge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1288707A true GB1288707A (en) | 1972-09-13 |
Family
ID=5791355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1288707D Expired GB1288707A (en) | 1970-12-17 | 1971-04-19 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2062323C3 (en) |
| FR (1) | FR2097886A5 (en) |
| GB (1) | GB1288707A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003052256A1 (en) * | 2001-12-14 | 2003-06-26 | Glen Sheluchin | Two cycle engine with two carburettors |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2288860A1 (en) * | 1974-09-03 | 1976-05-21 | Yamaha Motor Co Ltd | Four-stroke engine driven by lean mixture - with afterburner containing heat sensitive elements to activate mixture control |
| DE2909183C2 (en) * | 1979-03-08 | 1983-04-14 | Toyota Jidosha Kogyo K.K., Toyota, Aichi | Internal combustion engine |
| FR2608677B1 (en) * | 1986-12-19 | 1989-04-28 | Inst Francais Du Petrole | DEVICE AND METHOD FOR QUICK PRIMING OF AN OXIDATION CATALYST FOR A TWO-STROKE ENGINE |
-
1970
- 1970-12-17 DE DE2062323A patent/DE2062323C3/en not_active Expired
-
1971
- 1971-04-19 GB GB1288707D patent/GB1288707A/en not_active Expired
- 1971-06-08 FR FR7121577A patent/FR2097886A5/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003052256A1 (en) * | 2001-12-14 | 2003-06-26 | Glen Sheluchin | Two cycle engine with two carburettors |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2062323A1 (en) | 1972-07-06 |
| DE2062323C3 (en) | 1975-12-11 |
| FR2097886A5 (en) | 1972-03-03 |
| DE2062323B2 (en) | 1975-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |