A two-stroke internal combustion heat engine (1) with fuel injection; the heat engine (1) has: at least one cylinder (2), which has, on the inside, a combustion chamber (6); a piston (7), which is mounted inside the cylinder (2) so as to slide in a reciprocating manner; an intake duct (9), which feeds fresh air towards the combustion chamber (6); a reed valve (11), which is arranged inside the intake duct (9); and an injector (23), which is provided with an injection nozzle (24), through which fuel is injected towards the combustion chamber (6). The injector (23) is mounted through the reed valve (11), so that the injection nozzle (24) sprays fuel downstream of the reed valve (11) relative to the feeding direction of the fresh air along the intake duct (9).
F02B 33/04 - Engines with reciprocating-piston pumpsEngines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
F02M 69/10 - Low-pressure fuel-injection apparatus peculiar to scavenged two-stroke engines, e.g. injecting into crankcase-pump chamber
F02B 75/02 - Engines characterised by their cycles, e.g. six-stroke
F01M 3/00 - Lubrication specially adapted for engines with crankcase compression of fuel-air mixture, or for other engines in which lubricant is contained in fuel, combustion air, or fuel-air mixture
2.
TWO-STROKE INTERNAL COMBUSTION HEAT ENGINE WITH FUEL DIRECT INJECTION
A two-stroke internal combustion heat engine (1) with fuel direct injection, wherein the heat engine (1) has: at least one cylinder (2) with an internal combustion chamber (7) having a cylindrical symmetry around a first longitudinal axis (Al); a piston (8) mounted inside the cylinder (2) to slide in a reciprocating manner; a cylinder head (11) closing the combustion chamber (7) at the top; a spark plug (12) mounted through the head (11) and having a pair of electrodes (13) at the bottom; and an injector (14), which is arranged through the side wall of the cylinder (2), has a second longitudinal axis (A2) and is provided with an injection nozzle (15). The injection nozzle (15) of the injector (14) faces the head (11) to spray fuel towards the cylinder head (11), and the second longitudinal axis (A2) is inclined to form an acute angle with the first longitudinal axis (Al).
F02M 63/00 - Other fuel-injection apparatus having pertinent characteristics not provided for in groups or Details, component parts or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups or
F02F 1/22 - Other cylinders characterised by having ports in cylinder wall for scavenging or charging
F02M 61/14 - Arrangements of injectors with respect to enginesMounting of injectors
F02B 23/10 - Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition with separate admission of air and fuel into cylinder
F02B 25/28 - Multi-cylinder engines other than those provided for in, or of interest apart from, groups with V-, fan-, or star-arrangement of cylinders
F02B 75/22 - Multi-cylinder engines with cylinders in V-, fan-, or star-arrangement
F02B 75/02 - Engines characterised by their cycles, e.g. six-stroke
