US 3,981,277 AGranted

Solid fuel injection apparatuses

OwnerJan Viktor Abominventor

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Abstract

An apparatus for injecting pulverulent fuel into the combustion chamber of internal combustion engines includes a pre-chamber for the fuel powder which is to be supplied to the combustion chamber during an engine cycle. This pre-chamber is adapted, during an engine cycle, to be successively connected to a vacuum source, a fuel supply and the combustion chamber. To this end, the apparatus includes a movable member having the pre-chamber formed therein and being adapted, by co-operation with sealing elements applied under pressure against the movable member, sealingly to engage fixed connections leading to the vacuum source, the fuel supply and the combustion chamber. During the operating cycle of the movable member the pre-chamber successively passes the aforementioned connections so as to be placed in communication with the vacuum source, the fuel supply and the combustion chamber.

Claims10

Dependent claims

An apparatus for injecting pulverulent fuel into the combustion chamber of an internal combustion engine comprising

a fixed connection to the combustion chamber;
a vacuum source having a fixed connection attached thereto;
a fuel supply of fuel powder having a fixed connection attached thereto;
means to apply pressure to said fuel supply having a fixed connection attached thereto;
a fixed connection to ambient air;
sealing means having means to apply said sealing means under pressure;
and movable means cooperating with said sealing means and having a pre-chamber for fuel powder, to connect said pre-chamber during a cycle of the internal combustion engine successively to:
said fixed connection to said vacuum source,
said fixed connection to said fuel supply of fuel powder,
said fixed connection to the combustion chamber and simultaneously with said means to apply pressure to said fuel supply,
and said fixed connection to ambient air,
while said means to apply said sealing means under pressure applies said sealing means sealingly against said movable means to seal said pre-chamber attachment with each of said fixed connections,
whereby said pre-chamber successively has a vacuum therein from its said connection to said vacuum source, has fuel powder fed therein by the action of the vacuum prevailing therein, has fuel powder injected into said connection to the combustion chamber by the action of pressure placed on the fuel from said connection from said means to apply pressure to said fuel supply, and has lowered pressure by said connection to ambient air.

10 more elements

Dependencies are inferred from the claim text.