Igniting devices for internal-combustion engines comprising a burner located without the working cylinder and means for igniting the combustible charge in the working cylinder from the flame of the burner either by causing the flame itself to come into direct contact with the combustible charge within the working cylinder or by causing the flame to ignite an auxiliary volume of combustible gas, which burning gas is then moved into direct contact with the combustible charge within the working cylinder. Also contains patents in which a flame-igniting device as above defined is disclosed and claimed in combination with the supply or exhaust valve of the engine or with a valve controlling both the supply and exhaust ports. Flame-igniting devices capable of use only with internal-combustion engines operating upon noncompression cycles are when disclosed or claimed in patents claiming also a complete noncompression engine, considered as a part of such an engine and are not cross-referenced into this subclass.
