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1. (WO1983000531) INTERNAL COMBUSTION ENGINE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/1983/000531 International Application No.: PCT/GB1982/000241
Publication Date: 17.02.1983 International Filing Date: 04.08.1982
IPC:
F02B 23/06 (2006.01) ,F02B 3/06 (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
23
Other engines characterised by special shape or construction of combustion chambers to improve operation
02
with compression ignition
06
the combustion space being arranged in working piston
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
3
Engines characterised by air compression and subsequent fuel addition
06
with compression ignition
Applicants:
BREAR, Frederick [GB/GB]; GB (UsOnly)
MASSEY-FERGUSON-PERKINS LIMITED [GB/GB]; 33 Davies Street London W1Y 2EA, GB (AllExceptUS)
Inventors:
BREAR, Frederick; GB
Agent:
JONES, David, Bryn; Massey-Ferguson Patent Department Stareton, Nr. Kenilworth Warwickshire CV8 2LJ, GB
Priority Data:
812472313.08.1981GB
Title (EN) INTERNAL COMBUSTION ENGINE
(FR) MOTEUR A COMBUSTION INTERNE
Abstract:
(EN) An internal combustion engine comprising a piston (1) having a recessed combustion bowl (3) with a raised projection (4) in the floor of the bowl so as to define an annulus with the sides of the bowl, swirl means to cause the inlet air to rotate about said raised projection, and a fuel injector (2) having orifices that spray a plurality of jets into the annulus at spaced points around the projection (4), the cross-sectional area of the annulus being such as to vary around the projection (4) and to have a minimum value in a median plane (D-D) through the axis (C) of the projection (4), and the injector nozzle (2) being located in a central region of the bowl (3) and having orifices orientated so as to direct jets of fuel both sides of said median plane. The cross-section area of the annulus is varied by varying the radial width of the annulus, this being achieved conveniently in a circular bowl by offsetting the axis (C) of the projection (4) radially from the axis of the bowl (A). Both axes then lie on the median plane (D-D) through the narrowest part of the annulus. The injector nozzle (2) is also located along the median plane (D-D) and directs fuel jets into the four quadrants of the annulus defined by the median plane (D-D) and perpendicular plane (E-E) through the axis (A) of the bowl (3).
(FR) Un moteur à combustion interne comprend un piston (1) possédant une cuvette de combustion en retrait (3) pourvue d'un élément en saillie (4) sur le fond de la cuvette définissant un tore avec les côtés de la cuvette, un moyen de tourbillon servant à provoquer la rotation de l'air d'admission autour de cet élément en saillie, et un carburateur à injection (2) possédant des orifices qui pulvérisent une pluralité de jets dans le tore à des points espacés autour de l'élément en saillie (4), la section transversale du tore étant variable autour de l'élément en saillie (4) et possédant une valeur minimum dans un plan médian (D-D) au travers de l'axe (C) de l'élément en saillie (4) et la tuyère d'injecteur (2) étant située dans une région centrale de la cuvette (3) et possédant des orifices orientés de manière à diriger les jets de carburant des deux côtés du plan médian. La section transversale du tore est modifiée en faisant varier la largeur radiale du tore, ce qui est obtenu avantageusement dans une cuvette circulaire en décalant l'axe (C) de l'élément en saillie (4) radialement depuis l'axe de la cuvette (A). Les deux axes se trouvent alors sur le plan médian (D-D) au travers de la partie la plus étroite du tore. La tuyère d'injecteur (2) est aussi disposée le long du plan médian (D-D) et dirige les jets de carburant dans les quatre cadrans du tore définis par le plan médian (D-D) et le plan perpendiculaire (E-E) au travers de l'axe (A) de la cuvette (3).
Designated States: AU, BR, JP, US
European Patent Office (EPO) (DE, FR, GB, SE)
Publication Language: English (EN)
Filing Language: English (EN)