GB2563685A8 - Rotary sleeve valve for asymmetric timing in two-strokes - Google Patents

Rotary sleeve valve for asymmetric timing in two-strokes Download PDF

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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
Application number
GB1712398.5A
Other versions
GB2563685B (en
GB2563685A (en
GB201712398D0 (en
Inventor
Pattakos John
Pattakos Manousos
Pattakos Efthimios
Pattakos Emmanouel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB201712398D0 publication Critical patent/GB201712398D0/en
Publication of GB2563685A publication Critical patent/GB2563685A/en
Publication of GB2563685A8 publication Critical patent/GB2563685A8/en
Application granted granted Critical
Publication of GB2563685B publication Critical patent/GB2563685B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Characterised By The Charging Evacuation (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.
GB1712398.5A 2017-06-21 2017-08-01 Rotary sleeve valve for asymmetric timing in two-strokes Expired - Fee Related GB2563685B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
EP2414636A1 (en) * 2009-03-30 2012-02-08 Pivotal Engineering Limited Engine cooling system

Also Published As

Publication number Publication date
GB2563685B (en) 2020-06-10
GB2563685A (en) 2018-12-26
GB201710192D0 (en) 2017-08-09
GB201709950D0 (en) 2017-08-02
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