| 摘要 |
PROBLEM TO BE SOLVED: To provide a pump having reduced noise, improved water discharge performance, particularly improved drainability, and reduced size and weight, and a low noise, and also to provide sanitary dish washer using this pump, superior in cleaning performance and drainability. SOLUTION: This pump 1 includes a motor part 10, and a pump part 20. A rotor 16 is rotatably arranged on the inner periphery of a stator 11 in the motor part 10. The pump part 20 has a normal rotation pump chamber 21 and a reverse rotation pump chamber 31 partitioned by a partition wall 40. A normal rotation impeller 22 is arranged in the normal rotation pump chamber 21 having a suction port 25 for normal rotation on a line of a rotary shaft 18. A reverse rotation impeller 32 is arranged in the reverse rotation pump chamber 31 having a suction port 35 for reverse rotation. The partition wall 40 has a normal rotation pump chamber opening part 41. The reverse rotation impeller 32 has a passing hole 34 for communicating the suction port 25 for normal rotation with the normal rotation pump chamber opening part 41 in a rotary shaft peripheral part. COPYRIGHT: (C)2003,JPO
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