Diesel engine and method for improving the performance thereof
AssigneeToyota Jidosha Kogyo Kabushiki Kaisha
InventorsEiji Toyoda, Masaaki Noguchi, Yukiyasu Tanaka, Tsuchio Bunda, Masaharu Sumiyoshi
Life of this patent
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Abstract
A diesel engine characterized in that a part of fuel is reformed into a mixture containing decomposition and oxidation products in a system separate from that of a fuel injection in which a fuel is injected into a compressed air introduced into the cylinders under a high pressure and ignited, and said mixture is introduced into said cylinders during the suction stroke of the engine, and the method for improving the combustion efficiency thereof.
Claims17
A method for improving the performance of a diesel engine comprising the steps of:
- introducing a first mixture of a first quantity of fuel and a second quantity of air into a reformer;
- reforming said first quantity of fuel in the presence of said second quantity of air into a second mixture containing decomposition and oxidation products;
- feeding said second mixture to a combustion chamber of said engine;
- feeding a third quantity of air to said combustion chamber, wherein said third quantity of air has not passed through said reformer;
- injecting a fourth quantity of fuel into said combustion chamber, wherein said fourth quantity of fuel has not passed through said reformer;
- burning said second mixture and said fourth quantity of fuel in said combustion chamber.
A diesel engine for improving the performance thereof comprising:
- a combustion chamber;
- a piston disposed in said combustion chamber;
- a power take-off mechanism operatively connected to said piston and cooperating therewith for producing and transmitting power produced in said combustion chamber;
- a main fuel injection system connected to said combustion chamber for injecting main fuel into said combustion chamber;
- an air supply system connected to said combustion chamber for supplying an air into said combustion chamber;
- a means for reforming fuel into a mixture containing decomposition and oxidation products and supplying said mixture into said combustion chamber;
- an anxiliary fuel supply system connected to said reforming means for supplying anxiliary fuel into said reforming means;
- an anxiliary air supply system connected to said reforming means for supplying an auxiliary air into said reforming means;
- and an exhaust system connected to said combustion chamber for discharging exhaust produced gases in said combustion chamber.
Dependencies are inferred from the claim text.