EP0400338A3 - Device for varying the direction in which fuel flows into an engine cylinder, in particular of a two-stroke motorcycle engine - Google Patents

Device for varying the direction in which fuel flows into an engine cylinder, in particular of a two-stroke motorcycle engine Download PDF

Info

Publication number
EP0400338A3
EP0400338A3 EP19900108198 EP90108198A EP0400338A3 EP 0400338 A3 EP0400338 A3 EP 0400338A3 EP 19900108198 EP19900108198 EP 19900108198 EP 90108198 A EP90108198 A EP 90108198A EP 0400338 A3 EP0400338 A3 EP 0400338A3
Authority
EP
European Patent Office
Prior art keywords
engine
chamber
deflector means
varying
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.)
Withdrawn
Application number
EP19900108198
Other languages
German (de)
French (fr)
Other versions
EP0400338A2 (en
Inventor
Andrea Goggi
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.)
CAGIVA MOTOR ITALIA SpA
Original Assignee
CAGIVA MOTOR ITALIA SpA
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 CAGIVA MOTOR ITALIA SpA filed Critical CAGIVA MOTOR ITALIA SpA
Publication of EP0400338A2 publication Critical patent/EP0400338A2/en
Publication of EP0400338A3 publication Critical patent/EP0400338A3/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Withdrawn legal-status Critical Current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
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder 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
    • F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
    • 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
    • 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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • 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
    • 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)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

An engine, in particular a two-stroke motorcycle engine, comprises a cylinder (1) containing a chamber (3) in which a piston (4) moves; a fuel composed of air and the usual oil-gasoline mixture reaches said chamber (3) via feed passages (7). Movable deflector means (8) are arranged in at least one of said passages (7) in proximity to its entry (14) into the chamber (3) to orientate the fuel jet in such a manner as to result in improved scavenging of the chamber (3) during the appropriate phase of the engine cycle, said deflector means (8) varying the geometry of the passage (7) in which they are located as a function of the engine rotational speed and/or the position of the piston (4) within the cylinder chamber (3) or the engine cycle and/or the degree of opening of the accelerator.
The movement of said deflector means (8) occurs by the effect of the pressure in the cylinder chamber (3) and in the feed passage (7), and the fuel throughput through said passage (7) or rather the thrust gene­ rated by it on said deflector means (8).
EP19900108198 1989-05-30 1990-04-29 Device for varying the direction in which fuel flows into an engine cylinder, in particular of a two-stroke motorcycle engine Withdrawn EP0400338A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8920686A IT1229378B (en) 1989-05-30 1989-05-30 DEVICE FOR THE CHANGE IN THE DIRECTION OF FUEL INLET IN A CYLINDER OF AN ENGINE, IN PARTICULAR TWO STROKES FOR MOTORCYCLES.
IT2068689 1989-05-30

Publications (2)

Publication Number Publication Date
EP0400338A2 EP0400338A2 (en) 1990-12-05
EP0400338A3 true EP0400338A3 (en) 1991-03-27

Family

ID=11170568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900108198 Withdrawn EP0400338A3 (en) 1989-05-30 1990-04-29 Device for varying the direction in which fuel flows into an engine cylinder, in particular of a two-stroke motorcycle engine

Country Status (2)

Country Link
EP (1) EP0400338A3 (en)
IT (1) IT1229378B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2674906A1 (en) * 1991-04-03 1992-10-09 Inst Francais Du Petrole TWO-STROKE ENGINE WITH SELECTIVE CONTROL OF THE LOAD INTRODUCED INTO THE COMBUSTION CHAMBER.
DK0578894T3 (en) * 1992-07-16 1996-05-13 New Sulzer Diesel Ag Cylinder insert for a piston combustion engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE719509C (en) * 1938-08-20 1942-04-10 Brennabor Werke Ag Two-stroke internal combustion engine
DE849034C (en) * 1950-06-23 1952-09-11 Kloeckner Humboldt Deutz Ag Cylinder for two-stroke internal combustion engines
DE760778C (en) * 1943-03-05 1953-09-14 Hermann Dr-Ing Foettinger Nozzle fastening for two-stroke internal combustion engines
US4549507A (en) * 1984-09-19 1985-10-29 Brunswick Corp. Two cycle loop scavenged engine with improved transfer passage flow

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE719509C (en) * 1938-08-20 1942-04-10 Brennabor Werke Ag Two-stroke internal combustion engine
DE760778C (en) * 1943-03-05 1953-09-14 Hermann Dr-Ing Foettinger Nozzle fastening for two-stroke internal combustion engines
DE849034C (en) * 1950-06-23 1952-09-11 Kloeckner Humboldt Deutz Ag Cylinder for two-stroke internal combustion engines
US4549507A (en) * 1984-09-19 1985-10-29 Brunswick Corp. Two cycle loop scavenged engine with improved transfer passage flow

Also Published As

Publication number Publication date
EP0400338A2 (en) 1990-12-05
IT8920686A0 (en) 1989-05-30
IT1229378B (en) 1991-08-08

Similar Documents

Publication Publication Date Title
FI951105A0 (en) Piston unit at a combustion engine
GB1592268A (en) 2-stroke internal combustion engines
FI67432B (en) APPARAT FOER REGLERING AV BROMSNINGEN AV EN DIESELMOTOR
EP0400338A3 (en) Device for varying the direction in which fuel flows into an engine cylinder, in particular of a two-stroke motorcycle engine
AU1786788A (en) Method of and apparatus for improving the operation of an engine
US3550568A (en) Opposing piston engine
KR960706603A (en) Controlled 2-stroke internal combustion engine (GESTEUERTE ZWEITAKT-BRENNKRAFTMASCHINE)
US5646363A (en) Free piston machine
JPS57110771A (en) Fuel injection valve
EP0685645A3 (en) Injection valve for a fuel injection system of an internal combustion engine, particularly of a diesel engine.
US20010006046A1 (en) Combustion-engined tool having a combustion chamber with a controllable pressure build-up
EP1273795A3 (en) Method and apparatus for injecting fuel
JPS56165702A (en) Lubricator for rotary piston engine
JPS5438440A (en) Air fuel ratio controller for internal combustion engine fuel feeder
RU2235213C1 (en) Internal combustion engine operation control method
EP0268914A3 (en) Device for controlling the flow of the aspirated air or mixture for internal combustion engines
SE9201421D0 (en) VALVE DEVICE FOR COMBUSTION ENGINE
KR19980078765A (en) Throttle valve control device for vehicle engine
ES2082676A2 (en) Improvements to fuel-enrichment systems for engines
JPS5612925A (en) Combustion device for preventing black smoke
JPS5591737A (en) Auxiliary air adjusting device for fuel injection type internal combustion engine
JPS5392037A (en) Carburetor controlling apparatus for sub-combustion chamber of torch ignition type internal combustion engine
JPS5776215A (en) Internal combustion engine
JPS56532A (en) Intake device of internal combustion engine
JPS5713243A (en) Throttle valve for engine with supercharger

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19910926