GB722168A - Improvements in two-stroke internal combustion engines - Google Patents
Improvements in two-stroke internal combustion enginesInfo
- Publication number
- GB722168A GB722168A GB29239/52A GB2923952A GB722168A GB 722168 A GB722168 A GB 722168A GB 29239/52 A GB29239/52 A GB 29239/52A GB 2923952 A GB2923952 A GB 2923952A GB 722168 A GB722168 A GB 722168A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ports
- crankcase
- stroke
- engine
- pump
- 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
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
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
- F02M2700/33—Compressors for piston combustion engines
- F02M2700/331—Charging and scavenging compressors
- F02M2700/336—Arrangements thereof on the engine
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
722,168. Two-stroke engines. AUTO UNION GES. Nov. 19, 1952 [Nov. 20, 1951], No. 29239/52. Class 7 (2). A double-acting charging pump 17 mounted on the crankcase of a two-stroke crankcasecompression engine at between 30 degrees and 90 degrees (as shown, 75 degrees) to the engine cylinder 10, with its stroke retarded relative to the engine stroke, has its lower and upper ends delivering to the crankcase directly and via grooves 19 respectively. Charge is induced into the upper pump end through either a port 22 or automatically acting valvular means in the cover 18 and, from the same or a different source, directly into the crankcase through a port 21, the combined charge passing to the cylinder 10 via transfer ducts leading to ports 23. The ports 21, 22 may respectively supply air and rich mixture or vice versa, and the engine and pump cylinders may have equal or differing volumes. The pump 17 continues crankcase compression until the ports 23 close. The upper edges of the ports 23 may be higher up the cylinder 10 than the upper edge of an exhaust port 24. Spark or compression ignition may be used.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE722168X | 1951-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB722168A true GB722168A (en) | 1955-01-19 |
Family
ID=6630840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29239/52A Expired GB722168A (en) | 1951-11-20 | 1952-11-19 | Improvements in two-stroke internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB722168A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE1930242A1 (en) * | 2019-08-01 | 2021-02-02 | Fredrik Gustafsson | Two Stroke High Performance Piston Pump Engine |
-
1952
- 1952-11-19 GB GB29239/52A patent/GB722168A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE1930242A1 (en) * | 2019-08-01 | 2021-02-02 | Fredrik Gustafsson | Two Stroke High Performance Piston Pump Engine |
| SE543468C2 (en) * | 2019-08-01 | 2021-03-02 | Fredrik Gustafsson | Two Stroke High Performance Piston Pump Engine |
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