| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem of not necessarily having suitable setup on the formation of a siphon and the discharge of dirt using a jet pump because of setting a main point only on nozzle constitution in a conventional flush toilet bowl. SOLUTION: In this flush toilet bowl, pressurized wash water from an external pressurized water supply source is discharged toward a trap inlet from a jet water discharge port provided at the bottom part of a bowl part, and the jet water discharge port and a so-called riser part extending from the trap inlet to a weir part, are arranged almost on a straight line. The quantity of discharge flow from the jet water discharge port, the flow velocity, the diameter of the jet water discharge port and an inner diameter from the trap inlet to the weir part are set to enhance a jet pump effect.
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