GB2001389A - Two-stroke engine with transfer port in piston crown - Google Patents
Two-stroke engine with transfer port in piston crownInfo
- Publication number
- GB2001389A GB2001389A GB787830453A GB7830453A GB2001389A GB 2001389 A GB2001389 A GB 2001389A GB 787830453 A GB787830453 A GB 787830453A GB 7830453 A GB7830453 A GB 7830453A GB 2001389 A GB2001389 A GB 2001389A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston crown
- stroke engine
- transfer port
- port
- cylinder
- 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.)
- Granted
Links
- 239000007789 gas Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
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
- F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L11/00—Valve arrangements in working piston or piston-rod
- F01L11/02—Valve arrangements in working piston or piston-rod in piston
-
- 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
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
- F02B33/04—Engines with reciprocating-piston pumps; Engines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
-
- 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
- F02F3/00—Pistons
- F02F3/24—Pistons having means for guiding gases in cylinders, e.g. for guiding scavenging charge in two-stroke engines
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Two passages 4 through the piston communicate with transfer passages 5 and lead to a port 3 formed in an insert in the piston crown. The combustible mixture issues as a jet, centrally in the cylinder, and displaces burnt gases outwardly and downwardly, to form a stratified charge. The port may be elliptical in cross-section, the major axis being in an axial plane through the cylinder about which a plurality of exhaust ports is symmetrically arranged. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT25992/77A IT1081147B (en) | 1977-07-21 | 1977-07-21 | TWO STROKE ENGINE WITH TRANSFER FROM THE PISTON |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2001389A true GB2001389A (en) | 1979-01-31 |
GB2001389B GB2001389B (en) | 1982-03-03 |
Family
ID=11218354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB787830453A Expired GB2001389B (en) | 1977-07-21 | 1978-07-20 | Internal combustion piston engines |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS54116520A (en) |
DE (1) | DE2831426A1 (en) |
ES (1) | ES471889A1 (en) |
FR (1) | FR2398183A1 (en) |
GB (1) | GB2001389B (en) |
IT (1) | IT1081147B (en) |
NL (1) | NL7807743A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135423A (en) * | 1983-02-12 | 1984-08-30 | Alexander Walter Swales | Piston and cylinder configuration |
FR2728304A1 (en) * | 1994-12-15 | 1996-06-21 | Rougeron Andre | Two=stroke IC engine with inlet passages in piston head |
CZ306050B6 (en) * | 2014-06-18 | 2016-07-13 | Zdeněk Novotný | Two-stroke internal combustion engine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01305124A (en) * | 1988-05-31 | 1989-12-08 | Ind Technol Res Inst | Scavenge structure of two-cycle internal combustion engine |
-
1977
- 1977-07-21 IT IT25992/77A patent/IT1081147B/en active
-
1978
- 1978-07-18 DE DE19782831426 patent/DE2831426A1/en not_active Withdrawn
- 1978-07-19 NL NL7807743A patent/NL7807743A/en not_active Application Discontinuation
- 1978-07-20 ES ES471889A patent/ES471889A1/en not_active Expired
- 1978-07-20 GB GB787830453A patent/GB2001389B/en not_active Expired
- 1978-07-21 JP JP8850578A patent/JPS54116520A/en active Pending
- 1978-07-21 FR FR7821696A patent/FR2398183A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2135423A (en) * | 1983-02-12 | 1984-08-30 | Alexander Walter Swales | Piston and cylinder configuration |
FR2728304A1 (en) * | 1994-12-15 | 1996-06-21 | Rougeron Andre | Two=stroke IC engine with inlet passages in piston head |
CZ306050B6 (en) * | 2014-06-18 | 2016-07-13 | Zdeněk Novotný | Two-stroke internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
DE2831426A1 (en) | 1979-02-01 |
JPS54116520A (en) | 1979-09-10 |
IT1081147B (en) | 1985-05-16 |
ES471889A1 (en) | 1979-02-16 |
FR2398183A1 (en) | 1979-02-16 |
NL7807743A (en) | 1979-01-23 |
GB2001389B (en) | 1982-03-03 |
FR2398183B3 (en) | 1981-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |