초록 ▼

A free piston gasifier is described capable of burning porous solid char fuels alone or with oil fuels. Air is forced into the char pore spaces during the compression process of the cycle in order to achieve the rapid burning needed for reasonable gasifier speeds. Fresh char fuel is periodically fur

A free piston gasifier is described capable of burning porous solid char fuels alone or with oil fuels. Air is forced into the char pore spaces during the compression process of the cycle in order to achieve the rapid burning needed for reasonable gasifier speeds. Fresh char fuel is periodically furnished into a combustion chamber and ashes are removed therefrom. Gasifier output is controlled by control of intake air density.

대표청구항 ▼

A free piston gas generator comprising: a free piston mechanism comprising a power cylinder with a number of power pistons operative within each such power cylinder equal to two minus the number of cylinder heads on said power cylinder, said number of cylinder heads not exceeding one, each such powe

A free piston gas generator comprising: a free piston mechanism comprising a power cylinder with a number of power pistons operative within each such power cylinder equal to two minus the number of cylinder heads on said power cylinder, said number of cylinder heads not exceeding one, each such power piston and each such cylinder head comprising a compressing surface with said compressing surfaces facing toward each other; a combustion chamber secured inside the power cylinder of said free piston mechanism and comprising; means for containing char fuel and ashes so that said char fuel and ashes are mechanically separated from the power cylinder and power piston; said means for containing further comprising a refuel end through which refueling takes place, said means for containing further comprising gas flow passages which connect from that interior space of said containing means within which the char fuel and ashes are contained to that interior space of said power cylinder contained by said power cylinder and said compressing surfaces; each free piston gas generator being equipped with at least one of said combustion chambers for each free piston mechanism; A refuel mechanism comprising; means for sealing that refuel end of said means for containing char fuel and ashes, through which refueling takes place, against gas leakage during compression and expansion processes; means for refueling fresh char fuel at intervals into said means for containing char fuel and ashes; each free piston gas generator being equipped with at least one of said refuel mechanisms for each free piston mechanism; a reload mechanism comprising: means for reloading a quantity of fresh char fuel into said means for refueling after each such refueling; each free piston gas generator being served by at least one reload mechanism.