Device and method for injecting fuel into an engine, assisted by compressed air or gas
AssigneesInstitut Francais du Petrole, Automobiles Peugeot, Automobiles Citroen
InventorPierre Duret
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Abstract
A device and method are provided for the pneumatic injection of fuel into an engine. The device comprises at least one auxiliary duct having two ends one of which is connected to an exhaust pipe and the other to an injection member.
Claims21
In an internal combustion engine comprising at least one pneumatic fuel injection member, at least one exhaust pipe and a pump crank case, a chamber is provided connecting said crank case to said injection member, said chamber forming an injection chamber, an auxiliary duct connecting said exhaust pipe to said injection chamber and said injection chamber comprising an obstruction member, such as a stop valve or non return valve, this member being located before the connection of said auxiliary duct to said injection chamber.
A method for effecting the injection of fuel in an internal combustion engine equipped with a pneumatic injection member and an exhaust pipe and comprising a pump crank case, wherein communication is established between the exhaust pipe and the injection member and a part of the compressed gases coming from the pump crank case is directed towards the injection member and is combined with the gases coming from said communication between the exhaust and the injection member.
Dependencies are inferred from the claim text.