Compact plunger pump

Details Compact plunger pump Compact plunger pump

1980-03-26

1982-07-13

Miller, Jr., George H.

Recorders

Record receiver deforming

346140R, 92171, G01D 1518, F16J 1000

Patent

active

043397611

ABSTRACT:
An ink liquid supply system for an ink jet system printer comprises an ink liquid reservoir for containing ink liquid therein, and a constant flow rate plunger pump for supplying the ink liquid to a nozzle. The constant flow rate plunger pump comprises a cylinder block, a bush exchangeably secured to a cylinder portion of the cylinder block, a piston slidably disposed in the bush, and a diaphragm secured to one end of the piston. A first pressure chamber is defined by the other end of the piston, and a second pressure chamber is defined by the diaphragm. In response to the reciprocating movement of the piston, the first pressure chamber functions to introduce the ink liquid from the ink liquid reservoir and to develop the ink liquid of a constant flow rate to the nozzle. At the same time, the second pressure chamber functions to introduce a waste ink liquid from a beam gutter of the ink jet system printer and to return the waste ink liquid to the ink liquid reservoir.

REFERENCES:
patent: 2796885 (1957-06-01), Garrett et al.
patent: 3712182 (1973-01-01), Penwell
patent: 3881557 (1975-05-01), Gendron et al.
patent: 4162616 (1979-07-01), Hayashida
patent: 4263602 (1981-04-01), Matsumoto et al.

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