Engines characterised by precombustion chambers

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02BINTERNAL-COMBUSTION PISTON ENGINES COMBUSTION ENGINES IN GENERAL

F02B19/00Engines characterised by precombustion chambers

F02B19/02the chamber being periodically isolated from its cylinder F02B19/04the isolation being effected by a protuberance on piston or cylinder head F02B19/06with auxiliary piston in chamber for transferring ignited charge to cylinder space F02B19/08the chamber being of air-swirl type F02B19/10with fuel introduced partly into pre-combustion chamber, and partly into cylinder F02B19/1004details of combustion chamber F02B19/1009heating, cooling F02B19/1014design parameters F02B19/1019with only one pre-combustion chamber F02B19/1023pre-combustion chamber and cylinder being fed with fuel-air mixture(s) F02B19/1028pre-combustion chamber and cylinder having both intake ports or valves F02B19/1033specially adapted valves F02B19/1038timing of valves F02B19/1042auxiliary intake, valve drive F02B19/1047means for varying the size of the torch passage F02B19/1052controlling F02B19/1057with fuel injectors disposed upstream of intake valves F02B19/1061with residuel gas chamber F02B19/1066pre-combustion chamber having an inlet and an outlet port and with two distinct intake conduits or with one intake conduit in which the heavier fuel particles are separated from the main stream F02B19/1071pre-combustion chamber having only one orifice,( F02B19/1076pre-combustion chamber being formed within the piston F02B19/108with fuel injection at least into pre-combustion chamber F02B19/1085controlling fuel injection F02B19/109with injection of a fuel-air mixture into the pre-combustion chamber by means of a pump F02B19/1095with more than one pre-combustion chamber (a stepped form of the main combustion chamber above the piston is to be considered as a pre-combustion chamber if this stepped portion is not a squish area) F02B19/12with positive ignition F02B19/14with compression ignition F02B19/16Chamber shapes or constructions not specific to sub-groups F02B19/02 - F02B19/10 F02B19/165The shape or construction of the pre-combustion chambers is specially adapted to be formed, at least in part, of ceramic material F02B19/18Transfer passages between chamber and cylinder