GB1474464A - Ported cylinder construction for a two-cycle engine - Google Patents

Ported cylinder construction for a two-cycle engine

Info

Publication number
GB1474464A
GB1474464A GB4380774A GB4380774A GB1474464A GB 1474464 A GB1474464 A GB 1474464A GB 4380774 A GB4380774 A GB 4380774A GB 4380774 A GB4380774 A GB 4380774A GB 1474464 A GB1474464 A GB 1474464A
Authority
GB
United Kingdom
Prior art keywords
liner
port
cylinder
crank
bore
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
GB4380774A
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.)
Brunswick Corp
Original Assignee
Brunswick Corp
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 Brunswick Corp filed Critical Brunswick Corp
Publication of GB1474464A publication Critical patent/GB1474464A/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
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/18—Other cylinders
    • F02F1/22—Other cylinders characterised by having ports in cylinder wall for scavenging or charging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/02—Cylinders; Cylinder heads  having cooling means
    • F02F1/04—Cylinders; Cylinder heads  having cooling means for air cooling
    • 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

1474464 IC engine cylinders BRUNSWICK CORP 9 Oct 1974 [22 Feb 1974] 43807/74 Heading F1B A method of making a lined cylinder for a twocycle engine utilizing crank-case compression of combustible mixture and side-ported exhaust, which comprises die-casting a cylinder body member with a bore surface extending between a crankcase and a head end and having an exhaust side port between the ends, die-casting a sleeve-liner member with an external surface to fit the bore of the cylinder body member and with a bore having an exhaust side-port and an inlet port between axial ends of the sleeve-liner member, assembling the members with exhaust side-port registration, the die casting of the fitted surface of the cylinderbody member including formation of an elongate groove which extends when the members are assembled between, and in communication with, the inlet port of the sleeve-liner member and the crank-case end of the cylinder-body member. Both ports are die-cast in aluminium and the liner bore is chromium electro-plated. The cylinder-body 25 has an exhaust port 33 and two grooves 35 and 42, which form the transfer passages when the liner is inserted. The liner 26 has two transfer ports 34 and 48 and an exhaust port 32 and is also formed on its external surface with grooves 51, 54 which increase in depth towards the crank-case end of the liner and form, with the grooves 35 and 42, transfer passages the cross-sectional area of which decreases towards the transfer ports. Fig. 8 shows a view from the crank-case end of the assembled cylinder and shows two cut-outs 56 which provide clearance for the connecting rod. The ports are located by a counterbore and flange 30 and 29 and a pin and slot 46 and 47.
GB4380774A 1974-02-22 1974-10-09 Ported cylinder construction for a two-cycle engine Expired GB1474464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44476774A 1974-02-22 1974-02-22

Publications (1)

Publication Number Publication Date
GB1474464A true GB1474464A (en) 1977-05-25

Family

ID=23766271

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4380774A Expired GB1474464A (en) 1974-02-22 1974-10-09 Ported cylinder construction for a two-cycle engine

Country Status (6)

Country Link
JP (1) JPS50113621A (en)
CA (1) CA1009107A (en)
DE (1) DE2448209C2 (en)
FR (1) FR2262199B1 (en)
GB (1) GB1474464A (en)
SE (1) SE7412631L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2840645A1 (en) * 2002-06-10 2003-12-12 Stihl Ag & Co Kg Andreas TWO-STROKE ENGINE AND METHOD FOR MANUFACTURING THE SAME

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60175733A (en) * 1984-02-20 1985-09-09 Yamaha Motor Co Ltd Intake-air section structure in motor-cycle engine
SE508266C2 (en) * 1996-04-04 1998-09-21 Electrolux Ab Cylinder for a two-stroke internal combustion engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1675286U (en) * 1952-09-05 1954-04-22 Andreas Stihl CYLINDER FOR COMBUSTION ENGINE.
DE1777591U (en) * 1956-09-20 1958-11-13 Henschel Maschb G M B H WORKING CYLINDERS FOR TWO-STROKE COMBUSTION MACHINES WITH INLET AND OUTLET SLOTS CONTROLLED BY THE WORK PISTON.
DE1767629U (en) * 1957-09-24 1958-05-29 Helene Kirchhoff CYLINDER FOR TWO-STROKE COMBUSTION MACHINE.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2840645A1 (en) * 2002-06-10 2003-12-12 Stihl Ag & Co Kg Andreas TWO-STROKE ENGINE AND METHOD FOR MANUFACTURING THE SAME
US6832582B2 (en) 2002-06-10 2004-12-21 Andreas Stihl Ag & Co. Kg Two-stroke engine and method of making the same

Also Published As

Publication number Publication date
SE7412631L (en) 1975-08-25
DE2448209C2 (en) 1983-12-01
FR2262199B1 (en) 1978-03-24
JPS50113621A (en) 1975-09-05
FR2262199A1 (en) 1975-09-19
DE2448209A1 (en) 1975-08-28
AU7419674A (en) 1976-04-15
CA1009107A (en) 1977-04-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee