ATE50318T1 - PISTON-CYLINDER UNIT OF A TWO-STROKE ENGINE. - Google Patents

PISTON-CYLINDER UNIT OF A TWO-STROKE ENGINE.

Info

Publication number
ATE50318T1
ATE50318T1 AT86113495T AT86113495T ATE50318T1 AT E50318 T1 ATE50318 T1 AT E50318T1 AT 86113495 T AT86113495 T AT 86113495T AT 86113495 T AT86113495 T AT 86113495T AT E50318 T1 ATE50318 T1 AT E50318T1
Authority
AT
Austria
Prior art keywords
piston
grooves
liner
cylinder
motor
Prior art date
Application number
AT86113495T
Other languages
German (de)
Inventor
Umberto Panzeri
Original Assignee
Gilardoni Vittorio 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 Gilardoni Vittorio Spa filed Critical Gilardoni Vittorio Spa
Application granted granted Critical
Publication of ATE50318T1 publication Critical patent/ATE50318T1/en

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
    • F02B25/14—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
    • 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)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Valve Device For Special Equipments (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

1. A piston-cylinder assembly for a two cycle internal combustion engine, having first recesses or grooves (9, 20, 31) longitudinally extending in the cylinder liner (3, 21, 36) and directly connecting the inner portion of motor crankcase with the motor combustion chamber when said piston (11) is in positions near its bottom dead center, characterized in that said first grooves cooperate with second grooves or recesses (17, 23, 32, 39) longitudinally extending in the piston liner (12, 24, 33, 38), in correspondence with the cylinder grooves, so as to conjointly form ducts or passages (19, 25, 34) which are adapted to ensure a sweeping of the motor combustion chamber, without involving any main gas feeding passage, said second grooves (17, 23, 32, 39) extending from the lower edge of said piston liner up to a position below the piston seats (14) for seating the piston rings.
AT86113495T 1985-10-02 1986-10-01 PISTON-CYLINDER UNIT OF A TWO-STROKE ENGINE. ATE50318T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22334/85A IT1185972B (en) 1985-10-02 1985-10-02 METHOD TO INCREASE THE PERFORMANCE OF TWO STROKE INTERNAL COMBUSTION ENGINES
EP86113495A EP0217374B1 (en) 1985-10-02 1986-10-01 Piston-cylinder unit for a two-stroke internal combustion engine

Publications (1)

Publication Number Publication Date
ATE50318T1 true ATE50318T1 (en) 1990-02-15

Family

ID=11194825

Family Applications (1)

Application Number Title Priority Date Filing Date
AT86113495T ATE50318T1 (en) 1985-10-02 1986-10-01 PISTON-CYLINDER UNIT OF A TWO-STROKE ENGINE.

Country Status (7)

Country Link
EP (1) EP0217374B1 (en)
AT (1) ATE50318T1 (en)
DE (1) DE3668943D1 (en)
ES (1) ES2013701B3 (en)
FR (1) FR2588043B1 (en)
IN (1) IN164255B (en)
IT (1) IT1185972B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2645207B1 (en) * 1989-04-04 1991-07-19 Racing Kart Dev Ste Nl TWO-STROKE INTERNAL COMBUSTION ENGINE
DE102011085476A1 (en) * 2011-10-28 2013-05-02 Ks Kolbenschmidt Gmbh Functionally optimized design of a cylinder liner

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2449368A1 (en) * 1973-10-18 1975-04-24 Halder Engines Ltd TWO-STROKE COMBUSTION ENGINE
US4294202A (en) * 1978-09-12 1981-10-13 Performance Industries, Inc. Fuel porting for two cycle internal combustion engine
JPS5813073Y2 (en) * 1979-03-28 1983-03-14 川崎重工業株式会社 Scavenging device for 2-stroke engine

Also Published As

Publication number Publication date
FR2588043A1 (en) 1987-04-03
EP0217374A1 (en) 1987-04-08
FR2588043B1 (en) 1989-07-28
IT8522334A0 (en) 1985-10-02
ES2013701B3 (en) 1990-06-01
IT1185972B (en) 1987-11-18
EP0217374B1 (en) 1990-02-07
DE3668943D1 (en) 1990-03-15
IN164255B (en) 1989-02-11

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee