Reciprocating internal combustion engine for operation with fuel in powder form

In a reciprocating internal combustion engine for operation with fuel in powder form, the combination comprising

• an engine cylinder head having a combustion chamber and a piston movably mounted in said combustion chamber;
• a valve piston slidably mounted in said cylinder head for movement into and out of said combustion chamber, said valve piston having outlets therein for expelling fuel into said combustion chamber;
• a housing mounted on said cylinder head;
• a fuel collecting chamber in said housing;
• a fuel transfer channel communicating said fuel collecting chamber with said valve piston to deliver fuel into said valve piston;
• a closing means disposed intermediately of said fuel transfer channel, said means including a slider block movably transversely of said transfer channel and having a passage therein for selective alignment in said fuel transfer channel, a recess for selective alignment with said fuel transfer channel, a piston movably mounted in said recess, and spring means for biasing said latter piston out of said recess towards said fuel collecting chamber;
• a dosing and ejecting member aligned with said transfer channel for expelling a charge of fuel from said fuel collecting chamber through said slider block passage and said transfer channel into said valve piston;
• adjusting means for adjusting the position of said dosing and ejecting member relative to said piston in said slider block to vary the charge of fuel therebetween;
• and
• control means for cyclically moving said dosing and ejecting member, said slider block and said valve piston in timed sequence to eject a charge of fuel into said combustion chamber.