| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pump device superior in productivity of a constituting part and workability of assembling work, capable of reducing noise, and capable of preventing the forming of rust. <P>SOLUTION: A fastening bolt 36 having a head part locked on one pump unit 22, is threadably attached to the other pump unit 23 by being inserted into a valve unit 24, and the respective pump units 22 and 23 and the valve unit 24 are mutually connected. Thus, the work process number of the assembling work can be reduced by reducing a processing place required for the respective pump units 22 and 23 and the valve unit 24. Thus, the productivity of the constituting part and the workability of the assembling work of a pump device can be improved. Since the fastening bolt 36 does not exist outside the pump units 22 and 23 and the valve unit 24, the noise can be reduced by cutting off a sound generated by the fastening bolt 36, and the rusting can be surely prevented by easily painting the pump device 21. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
