GB172706A - Improvements in internal combustion engines - Google Patents
Improvements in internal combustion enginesInfo
- Publication number
- GB172706A GB172706A GB2577720A GB2577720A GB172706A GB 172706 A GB172706 A GB 172706A GB 2577720 A GB2577720 A GB 2577720A GB 2577720 A GB2577720 A GB 2577720A GB 172706 A GB172706 A GB 172706A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- ports
- valve
- piston
- compression
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L5/00—Slide valve-gear or valve-arrangements
- F01L5/04—Slide valve-gear or valve-arrangements with cylindrical, sleeve, or part-annularly shaped valves
- F01L5/06—Slide valve-gear or valve-arrangements with cylindrical, sleeve, or part-annularly shaped valves surrounding working cylinder or piston
-
- 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
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
172,706. Wilson, F. M. Sept. 7,1920. Valves; valve-gear.-Mixture drawn into the crank case of a four-stroke engine through the valve-controlled port 7 is compressed and delivered in two parts to the cylinder. The admission ports 4, 5 are controlled by a ported sleeve valve 14 sliding between the cylinders and piston, the piston overrunning the ports in the sleeve. The sleeve also controls the exhaust ports 25; on the suction stroke, the piston moves down some distance in the sleeve before any ports open, thus producing a vacuum and assisting lubrication. At half crank-case compression, the top admission port 4 opens and some mixture enters; towards the end of suction stroke, the bottom admission port 5 is uncovered and the remainder of the charge is forced in, the pistons having completed compression in the crank case. On the compression and firing strokes, the ports are closed either by the sleeve or by the piston. The half-speed shaft 18 driving the sleeve valve is offset so that the sleeve moves down quicker than up. The ports 4, 5 on the sleeve valve and the supply pipes and ports may be duplicated for each cylinder.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2577720A GB172706A (en) | 1920-09-07 | 1920-09-07 | Improvements in internal combustion engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2577720A GB172706A (en) | 1920-09-07 | 1920-09-07 | Improvements in internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB172706A true GB172706A (en) | 1921-12-07 |
Family
ID=10233112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2577720A Expired GB172706A (en) | 1920-09-07 | 1920-09-07 | Improvements in internal combustion engines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB172706A (en) |
-
1920
- 1920-09-07 GB GB2577720A patent/GB172706A/en not_active Expired
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