Actuating plunger of an electromagnetic pump

Details Actuating plunger of an electromagnetic pump Actuating plunger of an electromagnetic pump

1995-06-21

1996-11-12

Denion, Thomas E.

Expansible chamber devices

Piston

With fluid passage in piston face

92158, 417416, F01B 3100

Patent

active

055729223

ABSTRACT:
Disclosed is an actuating plunger of an electromagnetic pump, the actuating plunger having a good magnetic characteristic so as to improve the operational efficiency of the electromagnetic pump and reduce the vibration and the operational noise due to the actuating plunger. The actuating plunger has a plunger head made by a high-temperature sintering. The plunger head has a cylindrical side wall, and a plurality of shoulders protruding inwards from a lower end of the cylindrical side wall. A piston is fixedly fitted in the middle of the shoulders. The piston extends downwards so as to be slidably fitted in a second cylinder.

REFERENCES:
patent: 4255193 (1981-03-01), Slesar et al.
patent: 4308475 (1981-12-01), Haeck
patent: 4376618 (1983-03-01), Toyoda et al.
patent: 4558715 (1985-12-01), Walton et al.

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