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GB2574756A - Operational improvements of two-stroke engines - Google Patents

Operational improvements of two-stroke engines Download PDF

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Publication number
GB2574756A
GB2574756A GB1913442.8A GB201913442A GB2574756A GB 2574756 A GB2574756 A GB 2574756A GB 201913442 A GB201913442 A GB 201913442A GB 2574756 A GB2574756 A GB 2574756A
Authority
GB
United Kingdom
Prior art keywords
stroke engines
operational improvements
exhaust
valve
intake
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
GB1913442.8A
Other versions
GB2574756B (en
GB2574756A8 (en
GB201913442D0 (en
Inventor
Bruce Robinson David
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 GB201913442D0 publication Critical patent/GB201913442D0/en
Publication of GB2574756A publication Critical patent/GB2574756A/en
Publication of GB2574756A8 publication Critical patent/GB2574756A8/en
Application granted granted Critical
Publication of GB2574756B publication Critical patent/GB2574756B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • 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
    • F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

A method of operating a two stroke engine comprises the steps of providing at least one cylinder; an intake system; an exhaust system; and a variable area valve; communicating between intake and exhaust systems; and varying the area of said valve to facilitate the variation of recoverable exhaust energy dependent upon the mode of operation of said engine.
GB1913442.8A 2017-03-03 2018-03-05 A two-stroke engine with energy recovery and variable area valve Active GB2574756B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB1703491.9A GB201703491D0 (en) 2017-03-03 2017-03-03 Operational improvements of two-stroke engines
PCT/GB2018/050550 WO2018158593A1 (en) 2017-03-03 2018-03-05 Operational improvements of two-stroke engines

Publications (4)

Publication Number Publication Date
GB201913442D0 GB201913442D0 (en) 2019-10-30
GB2574756A true GB2574756A (en) 2019-12-18
GB2574756A8 GB2574756A8 (en) 2020-01-15
GB2574756B GB2574756B (en) 2022-02-16

Family

ID=58543817

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1703491.9A Ceased GB201703491D0 (en) 2017-03-03 2017-03-03 Operational improvements of two-stroke engines
GB1913442.8A Active GB2574756B (en) 2017-03-03 2018-03-05 A two-stroke engine with energy recovery and variable area valve

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1703491.9A Ceased GB201703491D0 (en) 2017-03-03 2017-03-03 Operational improvements of two-stroke engines

Country Status (2)

Country Link
GB (2) GB201703491D0 (en)
WO (1) WO2018158593A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090159022A1 (en) * 2007-12-21 2009-06-25 Zhaoding Chu Differential Speed Reciprocating Piston Internal Combustion Engine
WO2012067643A1 (en) * 2010-11-15 2012-05-24 Achates Power, Inc. Two stroke opposed-piston engines with compression release for engine braking
EP2677141A1 (en) * 2012-06-21 2013-12-25 Wärtsilä Schweiz AG Method for operating a two stroke diesel engine and two-stroke diesel motor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT517247B1 (en) * 2015-05-29 2017-06-15 Ge Jenbacher Gmbh & Co Og Method for operating an internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090159022A1 (en) * 2007-12-21 2009-06-25 Zhaoding Chu Differential Speed Reciprocating Piston Internal Combustion Engine
WO2012067643A1 (en) * 2010-11-15 2012-05-24 Achates Power, Inc. Two stroke opposed-piston engines with compression release for engine braking
EP2677141A1 (en) * 2012-06-21 2013-12-25 Wärtsilä Schweiz AG Method for operating a two stroke diesel engine and two-stroke diesel motor

Also Published As

Publication number Publication date
GB2574756B (en) 2022-02-16
GB2574756A8 (en) 2020-01-15
GB201703491D0 (en) 2017-04-19
GB201913442D0 (en) 2019-10-30
WO2018158593A1 (en) 2018-09-07

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