GB816325A - Improvements in or relating to two-stroke internal combustion engines - Google Patents

Improvements in or relating to two-stroke internal combustion engines

Info

Publication number
GB816325A
GB816325A GB2168855A GB2168855A GB816325A GB 816325 A GB816325 A GB 816325A GB 2168855 A GB2168855 A GB 2168855A GB 2168855 A GB2168855 A GB 2168855A GB 816325 A GB816325 A GB 816325A
Authority
GB
United Kingdom
Prior art keywords
piston
degrees
inlet
ports
equal
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
GB2168855A
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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB816325A publication Critical patent/GB816325A/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
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/02—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons
    • F01B7/14—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons acting on different main shafts
    • 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
    • F02B75/00—Other engines
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

816,325. Two-stroke engines. FLETCHER, A. H. CUDDON-. Oct. 29, 1956 [July 27, 1955], No. 21688/55. Class 7(2) A cylinder 4<SP>1</SP> having piston-controlled exhaust ports 7 forms a common combustion chamber 5<SP>1</SP> with, and has a bore 78 per cent to 88 per cent of that of, a cylinder 3<SP>1</SP> having piston-controlled inlet ports 6. The pistons 8, 9<SP>1</SP> are of equal weight and work on intergeared crankshafts 10, 11 of equal throw displaced relative to the respective cylinder axis. The exhaust ports may open at 83 degrees before B. D C. and close at 56 degrees after B. D. C. and the inlet ports open at 52 degrees after B. D. C. and close at 61 degres after B. D. C. thus allowing supercharging. A bore 12 1 for a fuel injector or spark plug is provided. The piston 9<SP>1</SP> may be flat-topped. In a modification, water-cooled vertical or horizontal coaxial cylinders are used, there being opposed bores 12 for two fuel injectors, two spark plugs or one injector and one plug, and a blower for inlet air or mixture. Reference is made to the use of mutually inclined cylinders, of pistons of unequal weight compensated for by crankshaft balance weights, of exhaust ports having an area of opening equal to or less than that of the inlet ports, and of an exhaust piston having a lead of up to 14 degrees on the inlet piston.
GB2168855A 1955-07-27 Improvements in or relating to two-stroke internal combustion engines Expired GB816325A (en)

Publications (1)

Publication Number Publication Date
GB816325A true GB816325A (en) 1959-07-08

Family

ID=1736384

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2168855A Expired GB816325A (en) 1955-07-27 Improvements in or relating to two-stroke internal combustion engines

Country Status (1)

Country Link
GB (1) GB816325A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017101679A (en) * 2014-02-12 2017-06-08 アカーテース パワー，インク． Low reactivity, compression-ignition, opposed-piston engine
US10941660B2 (en) 2017-03-20 2021-03-09 Volvo Truck Corporation Opposed piston engine with offset inlet and exhaust crankshafts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017101679A (en) * 2014-02-12 2017-06-08 アカーテース パワー，インク． Low reactivity, compression-ignition, opposed-piston engine
US10941660B2 (en) 2017-03-20 2021-03-09 Volvo Truck Corporation Opposed piston engine with offset inlet and exhaust crankshafts

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