Endoscope holding apparatus for inspecting the interiors of a reciprocating engine and rotary engine having ignition plug holes, endoscope apparatus including the endoscope holding apparatus and inspecting method

摘要

An apparatus for holding an insertable part of an endoscope positioned in a combustion chamber of a reciprocating engine or rotary engine having ignition plug holes to observe the interior of the combustion chamber and an inspecting method are provided with a holding apparatus for stationarily holding the insertable part in the combustion chamber through a spark plug hole provided in the engine to insert a spark plug for a spark plug ignition into the combustion chamber.