Abstract: The invention relates to a device for introducing biomaterial into a pressure-loaded combustion or carburetor chamber (1), comprising a feed apparatus (2) for feeding biomaterial to a pressure pipe (3), in which a plunger (4) is guided in such a way that the plunger can be moved back and forth against a pressure lock (5) to the combustion or carburetor chamber (1) in order to form a compressed plug (6) comprised of biomaterial, which is sealed against the combustion chamber (1) and which is periodically advanced toward the combustion chamber (1).