| 摘要 |
An electromagnetic reciprocating pump comprising of a closed-type casing (3, 4) provided with a cylinder (3A) in front thereof, a main shaft (5) at least the front end of which is fixed to the casing, a piston (6) having a piston head (6A) in front thereof, which piston is slidably fitted over the outer periphery of the main shaft (5) to reciprocate, and coaxially supporting an armature (8), a spring (9) disposed between the piston and the casing for biasing the piston in one direction, an electromagnet (1, 2) fixed to the casing so as to attract the armature (8) in the opposite direction against the biasing force of the spring, suction ports (6B) and suction valves (6C) for sucking a fluid into a pressure chamber (12) defined by the cylinder and the piston head, and a discharge port (13) and a discharge valve (14) for discharging the pressurized fluid from the pressure chamber (12). <IMAGE> |
