发明名称 COOLING LIQUID CIRCULATION STRUCTURE OF PUMP
摘要 <P>PROBLEM TO BE SOLVED: To provide a structure by which the shaft 35 of the motor 3 can be shortened by chemical simplifying the installing structure of the circulation impeller 7, in the cooling liquid circulation structure of the pump 1 having the circulation impeller 7 for the circulation of the cooling liquid for cooling the motor 3. <P>SOLUTION: The cooling liquid circulation structure of the pump includes at least rotation rings 52, 54, fixed rings 51, 55, and the compression spring 53, and has the mechanical seal 5 sealing the shaft 35 between the pump part 21 and the motor part 22, and the circulation impeller 7 arranged in the shaft 35 and circulating the cooling liquid in the cooling liquid circulation flowing passage by rotating along with the shaft 35. The circulation impeller 7 is fixed to the shaft 35 so as to rotate along with the shaft 35 by the biasing force of the compression spring 53 of the mechanical seal 5. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012057551(A) 申请公布日期 2012.03.22
申请号 JP20100202136 申请日期 2010.09.09
申请人 SHINMAYWA INDUSTRIES LTD 发明人 ITANI RYUJI;SHIONO SHINJI;MAJIMA KAORU;KANNO TOHO
分类号 F04D13/08;F04D29/08;F04D29/58;F16J15/34 主分类号 F04D13/08
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