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EP0337768A3 - An internal combustion engine - Google Patents

An internal combustion engine Download PDF

Info

Publication number
EP0337768A3
EP0337768A3 EP89303626A EP89303626A EP0337768A3 EP 0337768 A3 EP0337768 A3 EP 0337768A3 EP 89303626 A EP89303626 A EP 89303626A EP 89303626 A EP89303626 A EP 89303626A EP 0337768 A3 EP0337768 A3 EP 0337768A3
Authority
EP
European Patent Office
Prior art keywords
air
fuel
internal combustion
charge
combustion engine
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.)
Withdrawn
Application number
EP89303626A
Other languages
German (de)
French (fr)
Other versions
EP0337768A2 (en
Inventor
Robert John Tait
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 EP0337768A2 publication Critical patent/EP0337768A2/en
Publication of EP0337768A3 publication Critical patent/EP0337768A3/en
Withdrawn legal-status Critical Current

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
    • 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
    • F02B25/22—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 by forming air cushion between charge and combustion residues
    • 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
    • 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
    • F02B33/06—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps
    • F02B33/10—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder
    • F02B33/12—Engines with reciprocating-piston pumps; Engines with crankcase pumps with reciprocating-piston pumps other than simple crankcase pumps with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder the rear face of working piston acting as pumping member and co-operating with a pumping chamber isolated from crankcase, the connecting-rod passing through the chamber and co-operating with movable isolating member
    • 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
    • F02B33/28—Component parts, details or accessories of crankcase pumps, not provided for in, or of interest apart from, subgroups F02B33/02 - F02B33/26
    • F02B33/30—Control of inlet or outlet ports
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Supercharger (AREA)

Abstract

A two-stroke internal combustion engine has a duplex piston (48) slidable in co-axial cylinders (18,28). The engine has an inlet (15) for air/fuel mixture, an air inlet (29) and an exhaust outlet (36), and the combustion chamber has air inlet ports (32) and air/fuel transfer ports (34). The piston is arranged to pump a fresh air charge into the combustion chamber slightly in advance of the air/fuel charge to assist in scavenging and avoid unburnt fuel being passed directly to exhaust. The crankcase may or may not be used for charge compression.
EP89303626A 1988-04-14 1989-04-12 An internal combustion engine Withdrawn EP0337768A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8808855 1988-04-14
GB888808855A GB8808855D0 (en) 1988-04-14 1988-04-14 I c engine

Publications (2)

Publication Number Publication Date
EP0337768A2 EP0337768A2 (en) 1989-10-18
EP0337768A3 true EP0337768A3 (en) 1990-04-25

Family

ID=10635202

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89303626A Withdrawn EP0337768A3 (en) 1988-04-14 1989-04-12 An internal combustion engine

Country Status (2)

Country Link
EP (1) EP0337768A3 (en)
GB (1) GB8808855D0 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8906279D0 (en) * 1989-03-18 1989-05-04 Hooper Bernard Internal combustion engine
DE4030116A1 (en) * 1990-09-23 1992-03-26 Koepke Guenter Dr Ing Two=stroke IC engine - functions as Otto and-or Diesel unit using lubricant-free thin air-fuel mixt.
CA2194196A1 (en) * 1996-12-31 1998-06-30 Douglas Ayres Internal combustion engines utilizing complete unit charge air/fuel injection
JP3035774B2 (en) * 1997-11-18 2000-04-24 敏二 木下 Air-conditioning two-stroke engine
US7082910B2 (en) 1999-01-19 2006-08-01 Aktiebolaget Electrolux Two-stroke internal combustion engine
SE513446C2 (en) 1999-01-19 2000-09-11 Electrolux Ab Crankcase coil internal combustion engine of two stroke type
AU3201200A (en) * 2000-01-14 2001-07-24 Aktiebolaget Electrolux Two-stroke internal combustion engine
SE0000095L (en) 2000-01-14 2001-07-15 Electrolux Ab Damper for regulating auxiliary air for two-stroke internal combustion engines
AU3201000A (en) * 2000-01-14 2001-07-24 Aktiebolaget Electrolux Two-stroke internal combustion engine
ES2253210T3 (en) 2000-01-14 2006-06-01 Aktiebolaget Electrolux TWO-TIME INTERNAL COMBUSTION ENGINE.
DE60025354T2 (en) 2000-04-27 2006-09-28 Aktiebolaget Electrolux TWO-STROKE INTERNAL COMBUSTION ENGINE
DE10218200B4 (en) * 2002-04-24 2013-05-16 Andreas Stihl Ag & Co. Two-stroke engine
FR2840019B1 (en) * 2002-05-24 2005-08-19 Stihl Ag & Co Kg Andreas TWO-STROKE MOTOR WITH IMPROVED SCAN MOBILE PISTON
JP5006972B2 (en) * 2008-09-24 2012-08-22 株式会社マキタ Stratified scavenging two-stroke engine
JP5922569B2 (en) 2012-12-28 2016-05-24 株式会社マキタ Stratified scavenging two-stroke engine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR340142A (en) * 1904-02-03 1904-06-27 Auguste Eugene Brillie Two-stroke engine
CH152982A (en) * 1930-11-17 1932-02-29 Sollers Hans Two-stroke explosion engine with carburetor and crankcase loading pump.
DE659313C (en) * 1935-10-19 1938-04-30 Oswald Kuhnast Two-stroke internal combustion engine
DE2943496A1 (en) * 1978-12-13 1980-06-26 Zschopau Motorrad Veb Cylinder in two stroke IC engine - has baffle plate below piston forming chambers connected to inlet channels and overflow ducts
EP0020806A1 (en) * 1979-06-29 1981-01-07 Christian Vialette Three-stroke engine
JPS60108530A (en) * 1983-11-17 1985-06-14 Iwao Maeyama 2-cycle engine
US4598673A (en) * 1985-02-06 1986-07-08 Outboard Marine Corporation Air-scavenged two-cycle internal combustion engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR340142A (en) * 1904-02-03 1904-06-27 Auguste Eugene Brillie Two-stroke engine
CH152982A (en) * 1930-11-17 1932-02-29 Sollers Hans Two-stroke explosion engine with carburetor and crankcase loading pump.
DE659313C (en) * 1935-10-19 1938-04-30 Oswald Kuhnast Two-stroke internal combustion engine
DE2943496A1 (en) * 1978-12-13 1980-06-26 Zschopau Motorrad Veb Cylinder in two stroke IC engine - has baffle plate below piston forming chambers connected to inlet channels and overflow ducts
EP0020806A1 (en) * 1979-06-29 1981-01-07 Christian Vialette Three-stroke engine
JPS60108530A (en) * 1983-11-17 1985-06-14 Iwao Maeyama 2-cycle engine
US4598673A (en) * 1985-02-06 1986-07-08 Outboard Marine Corporation Air-scavenged two-cycle internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 261 (M-422)(1984) 18 October 1985, & JP-A-60 108530 (IWAO MAEYAMA) 14 June 1985, *

Also Published As

Publication number Publication date
EP0337768A2 (en) 1989-10-18
GB8808855D0 (en) 1988-05-18

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