| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the outside diameter of a piston type pump by preventing a pump part from being projected in a piston type pump. <P>SOLUTION: A plunger 26 connected to a rotating shaft 16 of a motor 9 is slidably disposed in a cylinder 23 fitted to a pump case 21. A pump chamber 32 communicating with the cylinder 23 is formed in the pump case 21. The pump chamber 32 is provided with an inlet 33 and a delivery port 34. An inlet valve 30 having the center offset to the rotating shaft 16 from the center of the inlet 33 is connected to the inlet 33. A delivery valve 47 having the center offset to the rotating shaft 16 from the center of the delivery port 34 is connected to the delivery port 34. The motor 9 and the pump case 21 are accommodated in a housing 2 having a motor storing part 3 and a pump storing art 4 which are formed to have the same outside diameter. <P>COPYRIGHT: (C)2004,JPO</p> |
