GB201117263D0 - Split volume piston engine - Google Patents

Split volume piston engine

Info

Publication number
GB201117263D0
GB201117263D0 GBGB1117263.2A GB201117263A GB201117263D0 GB 201117263 D0 GB201117263 D0 GB 201117263D0 GB 201117263 A GB201117263 A GB 201117263A GB 201117263 D0 GB201117263 D0 GB 201117263D0
Authority
GB
United Kingdom
Prior art keywords
engine
piston
combustion
cylinder
chambers
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
GBGB1117263.2A
Other versions
GB2496099A (en
GB2496099B (en
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.)
PROTOPAPA PAUL
Original Assignee
PROTOPAPA PAUL
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 PROTOPAPA PAUL filed Critical PROTOPAPA PAUL
Priority to GB1117263.2A priority Critical patent/GB2496099B/en
Publication of GB201117263D0 publication Critical patent/GB201117263D0/en
Publication of GB2496099A publication Critical patent/GB2496099A/en
Application granted granted Critical
Publication of GB2496099B publication Critical patent/GB2496099B/en
Expired - Fee Related 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
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B19/00—Engines characterised by precombustion chambers
    • F02B19/02—Engines characterised by precombustion chambers the chamber being periodically isolated from its cylinder
    • F02B19/04—Engines characterised by precombustion chambers the chamber being periodically isolated from its cylinder the isolation being effected by a protuberance on piston or cylinder head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/16—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with pistons synchronously moving in tandem arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F01B7/18—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with differential 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
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/04—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being subdivided into two or more chambers
    • 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
    • F02B41/00—Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
    • F02B41/02—Engines with prolonged expansion
    • F02B41/06—Engines with prolonged expansion in compound cylinders
    • 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
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • 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
    • F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
    • F02B75/287—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with several pistons positioned in one cylinder one behind the other
    • 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
    • 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
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

An i.c. engine has a piston 2 having two sections 23, 24 of different cross-sectional profile reciprocating inside a cylinder 1 having a complementary profile so that each section 23, 24 of the piston has a combustion surface 4, 5 partly defining respective combustion chambers 8, 9 which are not in fluid communication with one another, eg piston rings 3 prevent egress of gases from one combustion chamber into the other. The engine can thus perform isolated cycles in respective chambers, eg 180 degrees out of phase. The piston 2 and cylinder 1 may each have a stepped profile. The combustion chambers 8, 9 may have respective sets of gas exchange valves 13, 14. The engine may have a double-ended stepped cylinder and piston (51, 52, fig.4) in which the combustion surfaces (5, 5a) of the middle sections are bevelled and its valves are actuated by a rotating cam ring (30, fig.5). The engine may have plural cylinders and may be spark-ignited or diesel, four-stroke or two-stroke. The engine may be used as a compressor.
GB1117263.2A 2011-10-06 2011-10-06 Split volume cylinder and piston combination Expired - Fee Related GB2496099B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1117263.2A GB2496099B (en) 2011-10-06 2011-10-06 Split volume cylinder and piston combination

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1117263.2A GB2496099B (en) 2011-10-06 2011-10-06 Split volume cylinder and piston combination

Publications (3)

Publication Number Publication Date
GB201117263D0 true GB201117263D0 (en) 2011-11-16
GB2496099A GB2496099A (en) 2013-05-08
GB2496099B GB2496099B (en) 2018-04-25

Family

ID=45035258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1117263.2A Expired - Fee Related GB2496099B (en) 2011-10-06 2011-10-06 Split volume cylinder and piston combination

Country Status (1)

Country Link
GB (1) GB2496099B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR523161A (en) * 1919-10-25 1921-08-13 William Pilcher Miller Improvements to internal combustion engines
GB181500A (en) * 1921-03-16 1922-06-16 Nelson Edward Davies Improvements in or relating to internal combustion engines
GB868685A (en) * 1957-05-04 1961-05-25 Licentia Gmbh A free-piston internal-combustion-engine gas producer
US7779627B1 (en) * 2009-02-05 2010-08-24 Ries James D Variable-displacement piston-cylinder device

Also Published As

Publication number Publication date
GB2496099A (en) 2013-05-08
GB2496099B (en) 2018-04-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20180725