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1. WO1996005426 - TWO-STROKE ENGINE WITH SPARK IGNITION

Publication Number WO/1996/005426
Publication Date 22.02.1996
International Application No. PCT/PL1995/000015
International Filing Date 16.08.1995
Chapter 2 Demand Filed 13.03.1996
IPC
F01L 7/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
7Rotary or oscillatory slide-valve gear or valve arrangements
12specially for two-stroke engines
F02B 1/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
1Engines characterised by fuel-air mixture compression
02with positive ignition
04with fuel-air mixture admission into cylinder
F02B 13/10 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
13Engines characterised by the introduction of liquid fuel into cylinders by use of auxiliary fluid
10Use of specific auxiliary fluids, e.g. steam, combustion gas
F02B 17/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
17Engines characterised by means for effecting stratification of charge in cylinders
F02B 25/14 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
25Engines characterised by using fresh charge for scavenging cylinders
14using reverse-flow scavenging, e.g. with both inlet and outlet ports arranged near bottom of piston stroke
F02B 75/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75Other engines, e.g. single-cylinder engines
02Engines characterised by their cycles, e.g. six-stroke
CPC
F01L 7/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
7Rotary or oscillatory slide valve-gear or valve arrangements
12specially for two-stroke engines
F02B 1/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
1Engines characterised by fuel-air mixture compression
02with positive ignition
04with fuel-air mixture admission into cylinder
F02B 13/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
13Engines characterised by the introduction of liquid fuel into cylinders by use of auxiliary fluid
10Use of specific auxiliary fluids, e.g. steam, combustion gas
F02B 17/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
17Engines characterised by means for effecting stratification of charge in cylinders
F02B 2075/025
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75Other engines
02Engines characterised by their cycles, e.g. six-stroke
022having less than six strokes per cycle
025two
F02B 25/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
25Engines characterised by using fresh charge for scavenging cylinders
14using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
Applicants
  • JARNUSZKIEWICZ, Stanis$m(D)aw [PL/PL]; PL
  • ZASADA, Sobies$m(D)aw [PL/PL]; PL
Inventors
  • JARNUSZKIEWICZ, Stanis$m(D)aw; PL
  • ZASADA, Sobies$m(D)aw; PL
Agents
  • KACPERSKI, Andrzej; ul. Czysta 16/2 PL-31-121 Kraków, PL
Priority Data
P.30473116.08.1994PL
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TWO-STROKE ENGINE WITH SPARK IGNITION
(FR) MOTEUR DEUX TEMPS A ALLUMAGE PAR ETINCELLE
Abstract
(EN)
In a two-stroke engine with ports controlled by the piston and with the air charge or a lean fuel-air mixture precompressed in the crankcase (11), the cylinder space is fed with a jet of rich fuel-exhaust gas mixture from the feed chamber (13) by means of a feed canal (14). The feed chamber (13) is formed by the inner space of the rotary distributor (A) closed by a rotary control element (16) driven by a non-slip transmission (17) from the engine crankshaft (10). The feed canal (14) ends at the cylinder wall with an opening situated between the upper edge of the exhaust port (4) and the position of the edge of the head of the piston (5) at the moment of ignition. The control element (16) has two openings, an inlet one (18) and an outlet one (19), spaced at the angle ($g(a)) and coupled in such a position that, while rotating, the inlet opening (18) meets the opening of the feed canal (14) during the engine power stroke, and the outlet opening (19) - during the compression stroke.
(FR)
La présente invention concerne un moteur deux temps dont les orifices sont commandés par le piston et dont la charge d'air ou de mélange pauvre de carburant et d'air est pré-comprimée dans le carter (11). Dans ce moteur, un jet de mélange riche de carburant et de gaz d'échappement alimente le volume du cylindre depuis la chambre de pré-mélange (13) par l'intermédiaire d'un canal d'alimentation (14). La chambre de pré-mélange est constituée du volume intérieur du distributeur rotatif (A) fermé par un élément de commande rotatif (16) entraîné par le vilebrequin (10) du moteur par l'intermédiaire d'une transmission non glissante. Le canal d'alimentation (14) débouche au niveau de la paroi du cylindre par un orifice situé entre l'extrémité supérieure de l'orifice d'échappement (4) et la position du bord de la tête de piston (5) au moment de l'allumage. L'élément de commande (16) présente deux ouvertures, une ouverture d'admission (18) et une ouverture d'échappement, constituant entre elles un angle ($g(a)), lesquelles ouvertures sont situées l'une par rapport à l'autre de façon qu'en cours de rotation, l'ouverture d'admission (18) coïncide avec l'ouverture du canal d'alimentation pendant la course motrice du moteur, et avec l'ouverture d'échappement (19) pendant la course de compression.
Also published as
CZPV1997-431
Latest bibliographic data on file with the International Bureau