Druckwasser-Spülklosettsystem

摘要

A pressurized water closet flushing system comprises an accumulator vessel (14) for storing water and air under pressure, and a flush valve (16) which controls the discharge of water from the vessel and comprises a cylinder (100) having a lower end in fluid communication with the outlet of said vessel, a piston, (152) defining upper and lower chambers therein, an orifice (180) in the piston, an aperture (130, 132) in the cylinder providing fluid communication between the interior of the accumulator vessel and the lower chamber in the cylinder, a valve (151) on the piston normally. closing the lower end of the cylinder so as to close the water outlet and openable upon upward movement of the piston to permit the discharge of water, and a normally closed flush valve actuator openable to effect fluid communication between ambient air pressure and the upper chamber in the cylinder whereby a fluid pressure differential across said piston effects upward movement 186 thereof and opening of the valve. <IMAGE>