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1. (WO1998053190) INTERNAL COMBUSTION ENGINE WITH CONTROLLED IGNITION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/053190 International Application No.: PCT/FR1998/001003
Publication Date: 26.11.1998 International Filing Date: 20.05.1998
Chapter 2 Demand Filed: 27.11.1998
IPC:
F02B 19/12 (2006.01) ,F02B 23/10 (2006.01) ,F02B 75/12 (2006.01) ,F02F 1/42 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
19
Engines characterised by precombustion chambers
12
with positive ignition
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
23
Other engines characterised by special shape or construction of combustion chambers to improve operation
08
with positive ignition
10
with separate admission of air and fuel into cylinder
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
75
Other engines, e.g. single-cylinder engines
12
Other methods of operation
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F
CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
1
Cylinders; Cylinder heads
24
Cylinder heads
42
Shape or arrangement of intake or exhaust channels in cylinder heads
Applicants:
RENAULT [FR/FR]; 34, quai du Point du Jour F-92109 Boulogne Billancourt, FR (AllExceptUS)
CUVILLIER, Paul [FR/FR]; FR (UsOnly)
HAUET, Bertrand [FR/FR]; FR (UsOnly)
LUCAS, Jean-Christophe [FR/FR]; FR (UsOnly)
Inventors:
CUVILLIER, Paul; FR
HAUET, Bertrand; FR
LUCAS, Jean-Christophe; FR
Agent:
FERNANDEZ, Francis; Renault Service 0267 860, quai de Stalingrad F-92109 Boulogne Billancourt, FR
Priority Data:
97/0629423.05.1997FR
Title (EN) INTERNAL COMBUSTION ENGINE WITH CONTROLLED IGNITION
(FR) MOTEUR A COMBUSTION INTERNE A ALLUMAGE COMMANDE
Abstract:
(EN) The invention concerns an internal combustion engine comprising a combustion chamber (1) delimited by a piston (3) top wall and a cylinder head (4) roof-shaped bottom wall (13), two inlet ports (5, 6), two exhaust ducts (9, 10), a recess (18) arranged in the cylinder head and opening into the roof-shaped bottom wall (13), a fuel injector (16) emerging at the recess (18) top, a spark plug (17, 217) emerging into the combustion chamber (1). The invention is characterised in that the recess (18) is formed by a main cavity (22) delimited by a base (20) wherein the injector (16) nozzle emerges and a side wall (19), and a plurality of secondary cavities (21) opening into the main cavity (22) bottom part.
(FR) Moteur à combustion interne comprenant une chambre de combustion (1) délimitée par la paroi supérieure d'un piston (3) et la paroi inférieure d'une culasse (4) en forme de toit (13), deux conduits d'admission (5, 6), deux conduits d'échappement (9, 10), un évidement (18) ménagé dans la culasse et débouchant dans la paroi inférieure en forme de toit (13), un injecteur de carburant (16) débouchant au sommet de l'évidement (18), une bougie d'allumage (17, 217) débouchant dans la chambre de combustion (1), caractérisé en ce que l'évidement (18) est formé par une cavité principale (22) délimitée par un fond (20) où débouche le nez de l'injecteur (16) et une paroi latérale (19), et une pluralité de cavités secondaires (21) débouchant dans la partie inférieure de la cavité principale (22).
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Designated States: JP, KR, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
ES2177015EP0983426DE000069806480FR2763647