GB1474464A - Ported cylinder construction for a two-cycle engine - Google Patents
Ported cylinder construction for a two-cycle engineInfo
- 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
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.
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)
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)
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)
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. |
-
1974
- 1974-10-03 CA CA210,721A patent/CA1009107A/en not_active Expired
- 1974-10-08 SE SE7412631A patent/SE7412631L/ not_active Application Discontinuation
- 1974-10-09 GB GB4380774A patent/GB1474464A/en not_active Expired
- 1974-10-09 DE DE19742448209 patent/DE2448209C2/en not_active Expired
- 1974-10-18 FR FR7435092A patent/FR2262199B1/fr not_active Expired
- 1974-12-04 JP JP13943074A patent/JPS50113621A/ja active Pending
Cited By (2)
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 |