PRESSURE LIMITING DEVICE OF WAVE POWER CONVERTER

PURPOSE:To correctly control the pressure of a wave power converter for a long time by connecting an air chamber to the atmosphere with a communicatin passage having a reservoir section and communicating the air chamber to the atmosphere when the pressure in the air chamber becomes the predetermined pressure or higher. CONSTITUTION:Liquid levels LA, LB of the first and second conduits 5a, 5b of a pressure limiting device 5 are varied up and down in response to the change of the air pressure in an air chamber 2. When the air pressure is within a nornal pressure range, these conduits are sealed so that the air in the air chamber is not released to the outside through the U-shaped conduits. When a large wave surges and the air pressure in the air chamber 2 is abnormally increased, the liquid level LA is pushed down to reach the lowest level l3, and the air in the air chamber 2 is released into the atmosphere through the second conduit 5b, thus the normal pressure can be maintained.