Internal-combustion engines – Combustion chamber means having fuel injection only – Using multiple injectors or injections
Patent
1990-09-21
1991-10-29
Dolinar, Andrew M.
Internal-combustion engines
Combustion chamber means having fuel injection only
Using multiple injectors or injections
123 27GE, 123275, 123305, F02B 4300
Patent
active
050606107
ABSTRACT:
An improved combustion process for an internal combustion engine including cylinders provided with inlet and outlet valves as well as inlet and outlet ducts. During a suction stroke with the outlet valve closed, fuel is fed into the cylinder through separate feeding valve means for providing a lean fuel/air mixture in the cylinder; during a compression stroke a first additional charge of fuel is fed into the cylinder by use of a considerable over pressure for igniting the lean fuel/air mixture and after ignition of the fuel/air mixture a second additional charge of fuel is fed into the cylinder for increasing the effective mean pressure of the engine. The second additional charge of fuel comprises a substantial part, and for achieving maximum mean effective pressures the main part, of the fuel fed into the cylinder during a working cycle of the process.
REFERENCES:
patent: 1132581 (1915-03-01), Hein
patent: 1962283 (1934-06-01), Nordberg
patent: 2723653 (1955-11-01), Blake et al.
patent: 4091772 (1978-05-01), Heater et al.
Dolinar Andrew M.
Oy Wartsila Diesel International Ltd.
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