GB136879A - Improvements in and relating to Two-stroke Internal Combustion Engines. - Google Patents

Improvements in and relating to Two-stroke Internal Combustion Engines.

Info

Publication number
GB136879A
GB136879A GB2121118A GB2121118A GB136879A GB 136879 A GB136879 A GB 136879A GB 2121118 A GB2121118 A GB 2121118A GB 2121118 A GB2121118 A GB 2121118A GB 136879 A GB136879 A GB 136879A
Authority
GB
United Kingdom
Prior art keywords
valve
rod
exhaust
cam
connexion
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
GB2121118A
Inventor
George William Lynn
Frederick Jonathan Fison
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 GB2121118A priority Critical patent/GB136879A/en
Publication of GB136879A publication Critical patent/GB136879A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D15/00—Varying compression ratio
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2700/00—Mechanical control of speed or power of a single cylinder piston engine
    • F02D2700/03—Controlling by changing the compression ratio
    • F02D2700/035—Controlling by changing the compression ratio without modifying the volume of the compression space, e.g. by changing the valve timing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

136,879. Lynn, G. W., and Fison, F. J. Dec. 19, 1918. Regulating.-In a two-stroke-cycle engine of the type in which the cylinder is scavenged by air under pressure and fuel is admitted after the closing of the air admission and exhaust orifices, governing is effected by holding open during the compression stroke an adjustably-actuated exhaust valve in the cylinder head. The invention is described in connexion with an engine forming the subject-matter of Specification 133,830 [Class 7 (ii), Internal-combustion engines. Arrangement &c. of]. Fig. 3 illustrates a cam gear for actuating the exhaust valve, the larger swell on the cam P actuating the valve during the exhaust period, and the smaller swell holding the valve open during compression for a period determined by the position of the lower end of the valve-rod D. A rocking-arm K is retained in contact with the valve-rod D by a spring Z, the length of the rod being adjusted by a screw-and-nut connexion X. Alternative means for varying the position of the lower end of the valve-rod comprise (1) an adjustable wedge movable in a direction at right-angles to the axis of the valve and located between the valve-rod and a lever which actuates the valvestem, and (2) a wedge located as in (1) but movable in a direction at right-angles to the axis of the lever. According to a further modification, the exhaust valve may be actuated by a sliding cam on the crank-shaft. The adjustment of the valve opening in each of the above-described constructions occurs simultaneously with a corresponding adjustment of the fuel supply.
GB2121118A 1918-12-19 1918-12-19 Improvements in and relating to Two-stroke Internal Combustion Engines. Expired GB136879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2121118A GB136879A (en) 1918-12-19 1918-12-19 Improvements in and relating to Two-stroke Internal Combustion Engines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2121118A GB136879A (en) 1918-12-19 1918-12-19 Improvements in and relating to Two-stroke Internal Combustion Engines.

Publications (1)

Publication Number Publication Date
GB136879A true GB136879A (en) 1919-12-19

Family

ID=10159045

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2121118A Expired GB136879A (en) 1918-12-19 1918-12-19 Improvements in and relating to Two-stroke Internal Combustion Engines.

Country Status (1)

Country Link
GB (1) GB136879A (en)

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