GB579598A - Improvements in the scavenging system of two stroke cycle internal combustion engines - Google Patents
Improvements in the scavenging system of two stroke cycle internal combustion enginesInfo
- Publication number
- GB579598A GB579598A GB8597/45A GB859745A GB579598A GB 579598 A GB579598 A GB 579598A GB 8597/45 A GB8597/45 A GB 8597/45A GB 859745 A GB859745 A GB 859745A GB 579598 A GB579598 A GB 579598A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ports
- cylinder
- sharp
- faces
- sharp bend
- 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
- 238000002485 combustion reaction Methods 0.000 title abstract 2
- 230000002000 scavenging effect Effects 0.000 title abstract 2
- 238000013459 approach Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
Classifications
-
- 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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
-
- 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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- 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
- F02B2700/00—Measures relating to the combustion process without indication of the kind of fuel or with more than one fuel
- F02B2700/03—Two stroke engines
- F02B2700/037—Scavenging or charging channels or openings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
579,598. Two-stroke scavenging. AKTIEBOLAGET ATLAS DIESEL. April 6, 1945, No. 8597. Convention date, April 18, 1944. [Class 7 (ii)] A two-stroke internal-combustion engine, Fig. 1, has piston controlled inlet ports 4, 5, 6 and 7 and exhaust ports 12 two at least of inlet ports 4 and 5 being directed perpendicularly towards the centre plane 8 and bounded by the walls 13 and 14, which are tangential to the cylinder, making sharp turns to form the faces 15 and 16 either side of the centre plane, the angle of the ports with relation to the cylinder axis decreasing as it approaches the sharp bends, shown by the arrows 20 and 21 on Figs. 5 and 6. The two adjacent ports 6 and 7 have the sharp bend faces 24 and 25 respectively which may be either directed to the cylinder axis or to a point two thirds the radius of the cylinder towards the ports 4 and 5. In a modification for a unifiow cylinder Fig. 7, the tangential walls 50, 52 have sharp bend faces 54 and 56 respectively, and further sharp bend faces 55, 57 for the second series of ports. Figs. 9 and 10 show by arrows 76 and 75 the angles of the ports to the cylinder axis. The sharp bend faces may be contained wholly in the cylinder liner 11 and the radial depth of the ports before the sharp turn must be less than two thirds of that measured close to the opposite axial confining edge of said ports.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE579598X | 1944-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB579598A true GB579598A (en) | 1946-08-08 |
Family
ID=20312396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8597/45A Expired GB579598A (en) | 1944-04-18 | 1945-04-06 | Improvements in the scavenging system of two stroke cycle internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB579598A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2319662A1 (en) * | 1973-04-18 | 1974-11-14 | Zuendapp Werke Gmbh | TWO-STROKE COMBUSTION ENGINE |
-
1945
- 1945-04-06 GB GB8597/45A patent/GB579598A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2319662A1 (en) * | 1973-04-18 | 1974-11-14 | Zuendapp Werke Gmbh | TWO-STROKE COMBUSTION ENGINE |
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