GB2563685A8 - Rotary sleeve valve for asymmetric timing in two-strokes - Google Patents
Rotary sleeve valve for asymmetric timing in two-strokes Download PDFInfo
- Publication number
- GB2563685A8 GB2563685A8 GB1712398.5A GB201712398A GB2563685A8 GB 2563685 A8 GB2563685 A8 GB 2563685A8 GB 201712398 A GB201712398 A GB 201712398A GB 2563685 A8 GB2563685 A8 GB 2563685A8
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- passageway
- transfer
- exhaust
- 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
Classifications
-
- 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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
-
- 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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
- F01L7/04—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves surrounding working cylinder or piston
-
- 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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
-
- 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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
- F01L7/021—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with one rotary valve
-
- 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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/02—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves
- F01L7/026—Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with two or more rotary valves, their rotational axes being parallel, e.g. 4-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
- F01L7/00—Rotary or oscillatory slide valve-gear or valve arrangements
- F01L7/12—Rotary or oscillatory slide valve-gear or valve arrangements specially for 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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/20—Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports not provided for in, or of interest apart from, subgroups F02B25/02 - F02B25/18
- F02B25/24—Inlet or outlet openings being timed asymmetrically relative to bottom dead-centre
-
- 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
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
-
- 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
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F2001/4207—Arrangements with one conduit connected with two valves; Arrangements connecting one valve with two conduits
-
- 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)
- Characterised By The Charging Evacuation (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
A reciprocating piston two-stroke internal combustion engine having a cylinder with combustion chamber and piston, a port on the cylinder operating as both an exhaust port and a transfer port, an exhaust passageway, a transfer passageway, and a rotary sleeve valve surrounding the cylinder controlling the communication of the hybrid port with the exhaust passageway and the transfer passageway. This allows a substantially asymmetrical timing of the ported two-strokes. The single port of the cylinder acts for a portion of the cycle as an exhaust port, and for another portion of the cycle as a transfer port, preventing gas from passing into the incorrect passageway at each stage. The rotary valve may also allow simultaneous communication of the hybrid port with both the exhaust and transfer passageways.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB1709950.8A GB201709950D0 (en) | 2017-06-21 | 2017-06-21 | Asymmetric exhaust and transfer in two-strokes |
GBGB1710192.4A GB201710192D0 (en) | 2017-06-21 | 2017-06-26 | Asymmetric exhaust and transfer in two-strokes |
Publications (4)
Publication Number | Publication Date |
---|---|
GB201712398D0 GB201712398D0 (en) | 2017-09-13 |
GB2563685A GB2563685A (en) | 2018-12-26 |
GB2563685A8 true GB2563685A8 (en) | 2019-01-16 |
GB2563685B GB2563685B (en) | 2020-06-10 |
Family
ID=59462520
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB1709950.8A Ceased GB201709950D0 (en) | 2017-06-21 | 2017-06-21 | Asymmetric exhaust and transfer in two-strokes |
GBGB1710192.4A Ceased GB201710192D0 (en) | 2017-06-21 | 2017-06-26 | Asymmetric exhaust and transfer in two-strokes |
GB1712398.5A Expired - Fee Related GB2563685B (en) | 2017-06-21 | 2017-08-01 | Rotary sleeve valve for asymmetric timing in two-strokes |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB1709950.8A Ceased GB201709950D0 (en) | 2017-06-21 | 2017-06-21 | Asymmetric exhaust and transfer in two-strokes |
GBGB1710192.4A Ceased GB201710192D0 (en) | 2017-06-21 | 2017-06-26 | Asymmetric exhaust and transfer in two-strokes |
Country Status (1)
Country | Link |
---|---|
GB (3) | GB201709950D0 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201800021094A1 (en) * | 2018-12-27 | 2020-06-27 | Emak Spa | TWO-STROKE INTERNAL COMBUSTION ENGINE |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB155311A (en) * | 1919-06-12 | 1920-12-13 | John White Junior | Improvements in or relating to sleeve-valve internal-combustion engines |
GB174400A (en) * | 1920-09-25 | 1922-01-25 | John White Junior | Improvements in or relating to sleeve-valve internal-combustion engines |
GB193919A (en) * | 1921-11-04 | 1923-03-05 | Verena Winifred Holmes | Improvements relating to valves and valve-gear for internal combustion engines |
GB463566A (en) * | 1934-10-02 | 1937-04-02 | Paul Kipfer | Improvements in or relating to sleeve-valve two-stroke internal combustion engines, operated in conjunction with exhaustdriven turbo-blowers |
GB2235014B (en) * | 1989-08-15 | 1994-04-13 | Christopher Barrie Wensley | Engine cylinder apparatus for an internal combustion engine |
KR101640626B1 (en) * | 2009-03-30 | 2016-07-18 | 피보탈 엔지니어링 리티미드 | Pre-combustion cycle pressurisation system |
-
2017
- 2017-06-21 GB GBGB1709950.8A patent/GB201709950D0/en not_active Ceased
- 2017-06-26 GB GBGB1710192.4A patent/GB201710192D0/en not_active Ceased
- 2017-08-01 GB GB1712398.5A patent/GB2563685B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2563685B (en) | 2020-06-10 |
GB2563685A (en) | 2018-12-26 |
GB201709950D0 (en) | 2017-08-02 |
GB201710192D0 (en) | 2017-08-09 |
GB201712398D0 (en) | 2017-09-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20210801 |