发明名称 |
Water pump for cooling engine |
摘要 |
A water pump for cooling an engine in which an impeller accommodated in a pump housing provided on an engine body is mounted on an end of a rotational shaft rotatably supported on the pump housing for enhancing the reliability of the mounting strength of the impeller while avoiding an increase in cost. A fitting recess for fitting an end of the rotational shaft having an outer circumferential surface which is straight in an axial direction at least in a portion on the impeller side is provided in a central portion of the impeller. A bolt inserted into the central portion of the impeller is threaded in a coaxial direction with the end of the rotational shaft in a state that is fitted in the fitting recess.
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申请公布号 |
US2004247444(A1) |
申请公布日期 |
2004.12.09 |
申请号 |
US20040806219 |
申请日期 |
2004.03.23 |
申请人 |
OSHITA TOHRU;SUZUKI TOSHIMITSU |
发明人 |
OSHITA TOHRU;SUZUKI TOSHIMITSU |
分类号 |
F01D5/00;F01P5/04;F01P5/10;F04D29/22;F16F15/26;(IPC1-7):F01D5/00 |
主分类号 |
F01D5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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