Water closet flushing apparatus

A water closet flushing apparatus comprising a bowl portion provided with a flushing water inlet port;

• a trap discharge passage defined adjacent to the bottom portion of said bowl portion;
• a flushing water supply source;
• a first flow passage means connecting said flushing water supply source to said flushing water inlet port;
• a water jet injection means for injecting a flushing water jet toward said trap discharge passage;
• a second flow passage means connecting said flushing water supply source to said water jet injection means;
• a first electrical opening and closing means which is disposed within said first flow passage means for opening and closing said first flow passage means in response to receipt by said first opening and closing means of "open" or "close" signals, respectively;
• a second electrical opening and closing means which is disposed within said second flow passage means for opening and closing said flow passage means in response to receipt by said second opening and closing means of "open" and "close" signals, respectively;
• flow rate sensor means for detecting the flow rates of the flushing water flowing through said first and second flow passage means, respectively, and for generating output signals indicative of the detected flow rates;
• a control means for delivering said "open" and "close" signals according to a predetermined program to said first and second opening and closing means, respectively, for supplying a predetermined quantity of flushing water to said first and second flow passage means, respectively, in a predetermined sequence during each cycle of operation of said flushing apparatus, and means for applying a start signal to said control means for beginning each cycle of operation of the apparatus.