GB496005A - Improvements in or relating to twin cylinder two-stroke internal combustion engines - Google Patents

Improvements in or relating to twin cylinder two-stroke internal combustion engines

Info

Publication number
GB496005A
GB496005A GB33563/37A GB3356337A GB496005A GB 496005 A GB496005 A GB 496005A GB 33563/37 A GB33563/37 A GB 33563/37A GB 3356337 A GB3356337 A GB 3356337A GB 496005 A GB496005 A GB 496005A
Authority
GB
United Kingdom
Prior art keywords
piston
crank
port
pistons
june
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
GB33563/37A
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.)
WORKS DEV Co Ltd
Original Assignee
WORKS DEV Co Ltd
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 WORKS DEV Co Ltd filed Critical WORKS DEV Co Ltd
Publication of GB496005A publication Critical patent/GB496005A/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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
    • F02B25/12—Engines with U-shaped cylinders, having ports in each arm
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

496,005. Two-stroke engines. EHRLICH, J., and WORKS DEVELOPMENT CO., Ltd. Dec. 3, 1937, No. 33563. Convention date, June 18, 1937. [A Specification was laid open to inspection under Sect. 91 of the Acts, June 7, 1938.] [Class 7 (ii)] In a two-stroke engine having twin cylinders 2, 21, each containing a piston - controlled exhaust port 7, 7<1>, the charge is compressed in the crank-case by the pistons and an auxiliary piston 21, connected to the crank-shaft so that maximum compression occurs after the crankshaft has passed bottom dead-centre, preferably by at least 45‹. The compressed charge is admitted to a common combustion chamber 8 through a transfer passage and an engine-driven valve 9 which remains open after the exhaust ports are closed. The pistons are connected to the crank pin by a common connecting-rod, and the arrangement is such that -the total period of exhaust exceeds by 25 per cent the period of opening of one port. The Specification as open to inspection under Sect. 91 comprises also (1) single cylinder two-stroke engine having a piston-controlled exhaust port and a valve-controlled inlet port in the head connected by a transfer passage to the crank-case, charged under pressure by a fly-wheel pump or an auxiliary piston similar to the piston 21 ; and (2) the subject-matter comprised by Specification 33564/37. This subject-matter does not appear in the Specification as accepted.
GB33563/37A 1937-06-18 1937-12-03 Improvements in or relating to twin cylinder two-stroke internal combustion engines Expired GB496005A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT496005X 1937-06-18

Publications (1)

Publication Number Publication Date
GB496005A true GB496005A (en) 1938-11-23

Family

ID=3675231

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33563/37A Expired GB496005A (en) 1937-06-18 1937-12-03 Improvements in or relating to twin cylinder two-stroke internal combustion engines

Country Status (1)

Country Link
GB (1) GB496005A (en)

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