Internal-combustion engines – Combustion chamber means having fuel injection only – Using multiple injectors or injections
Patent
1992-06-08
1993-04-06
Argenbright, Tony M.
Internal-combustion engines
Combustion chamber means having fuel injection only
Using multiple injectors or injections
123304, 239408, F02M 4304
Patent
active
051993988
ABSTRACT:
Improved fuel injection valve arrangement for so called dual fuel engines operated using two types of fuel, comprising a valve housing (2), which includes at least one nozzle orifice (5) opening into a combustion chamber of a cylinder in a combustion engine and which further includes first valve means for gaseous fuel and, independently controllable thereof, second valve means for pre-injection fuel used for ignition of the gaseous fuel. The valve means for the gaseous fuel comprises an axially movable, cylindrical, substantially hollow valve member (3), the mantle surface of which is sealed to the valve housing (2), at least at the end located at the side of the combustion chamber of the cylinder, and inside of which there is a separate valve means (7;8) for the pre-injection fuel. The end part of the said valve member (3) located at the side of the combustion chamber is arranged to control the supply of the gaseous fuel from inside the valve member (3) into said at least one nozzle orifice (5), said end part being designed to comprise two sealing surfaces (10a , 10b) placed on either side, in the moving direction of the valve member (3), of said at least one nozzle orifice (5) and arranged in co-operation with corresponding surfaces (11a, 11b) in the valve housing (2).
REFERENCES:
patent: 1786946 (1930-12-01), Hofmann
patent: 1857256 (1932-05-01), Nordberg
patent: 4856713 (1989-08-01), Burnett
Argenbright Tony M.
Wartsila Diesel International Ltd. Oy
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