This invention proposes a pusher feeder, characterized by: a body with a
hydraulic cylinder piston chamber at one end, housing a
hydraulic cylinder sleeve
piston pusher within the chamber; a hopper located at the upper middle section of the body; and a conical funnel-shaped waste fuel channel at the other end, with multiple adjusting screws on three sides of the funnel opening; and a pusher roller guide rail at the bottom of the body, equipped with a sleeve
piston stroke switch, allowing for automatic
hydraulic cylinder control by adjusting the piston
stroke. To prevent large fuel particles from shearing and jamming the piston during operation, this invention designs the cross-sectional area of the feed piston sleeve pusher to be much smaller than the cross-sectional area of the funnel opening of the feed channel. The principle of pushing the waste fuel is similar to that of using a wooden stick to push grass fuel into a traditional stove for
combustion; therefore, this invention is entitled "Pusher Feeder."