Abstract: Self-suctioning apparatus for multi-cylinder piston engines uses a tube-like pipe system extending from the manifold of the engine and includes a diverter for dividing the waste gas stream into several partial streams with the diverted waste gas streams being reflected and focused on an inner wall of the pipe system to form a zone of hot waste gases which are received by a nozzle system with no waste gas flow reversal to provide an uninterrupted suctioning effect and a continuous gas flow with a higher degree of air charging and an exit tube receiving the continuous gas flow for discharge into the ambient.

Abstract: An afterburner combustion chamber receives internal combustion engine exhaust gases and the ignition of the gases in the main engine combustion chamber and the afterburner combustion chamber are synchronized with one another. Auxiliary air is supplied to an afterburn area including the combustion chamber. Exahust gases are expelled onto a reflection wall upstream from the afterburner combustion chamber. The waste gases are ignited by spark ignition means. A volume expansion chamber leads from the ignition area and communicates with a convergent flow channel and a draft section for forming a gas column tuned by the cross section and length of the draft section for optimum filling of the engine combustion chamber. Ambient air is introduced into the draft section for stabilizing the thermal accumulation within the afterburner apparatus.

Abstract: A cavity forming structural support assembly for a chassis element of an internal combustion engine incorporates an elongated member made of metal or fiber reinforced plastic material having a peripheral wall with a plurality of internal longitudinally extending wall portions defining a longitudinally extending cavity and further including a plurality of secondary longitudinal cavities at least partially surrounding the primary cavities. The elongated member is capped by a material different than that of the elongated member to form a respective end thereof and to include transverse walls forming cavities within the elongated member and enclosing the secondary longitudinal cavities. The respective caps include a portion extending inside the walls of the hollow section chamber and in pressing engagement therewith. A support member extends transversely into the primary cavity and is connected to the inner wall portion of the cap.

Abstract: In a thermal afterburner and muffler for internal combustion engine exhaust gases, an elongated counterflow first combustion chamber has a central inlet for receiving the exhaust gases. A second combustion chamber includes first and second combustion regions, with the first combustion region receiving exhaust gases ejected from the first combustion chamber. The second combustion region includes a transversely extending baffle and an ignition element centrally located therein. A third combustion chamber includes first and second combustion compartments with the first combustion compartment surrounding the second combustion chamber and connected to the second combustion region through a partial flow-forming element and has a heat reflective inside surface area. The second combustion compartment surrounds the elongated combustion chamber and receives combustants from the first combustion compartment. A ceramic fibrous material at least partially surrounds the second combustion compartment.

Abstract: A hollow finned, multipassage, aluminum or ceramic exhaust gas cooling device is clamped between an inlet structure and an outlet structure which provide for retroverted flow and muffling. The device may be air-cooled internally.