GB172706A - Improvements in internal combustion engines - Google Patents

Improvements in internal combustion engines

Info

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
Application number
GB2577720A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB2577720A priority Critical patent/GB172706A/en
Publication of GB172706A publication Critical patent/GB172706A/en
Expired legal-status Critical Current

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.
GB2577720A 1920-09-07 1920-09-07 Improvements in internal combustion engines Expired GB172706A (en)

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)

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