Pump for forwarding liquids

Details Pump for forwarding liquids Pump for forwarding liquids

1983-05-18

1985-12-31

Croyle, Carlton R.

Pumps

With condition responsive pumped fluid control

Pressure responsive relief or bypass valve

92171, 251 83, 417444, 417489, 417497, 417539, F04B 4908, F04B 3910, F04B 704, F16K 2500

Patent

active

045618283

ABSTRACT:
A pump for forwarding liquids is described which has at least one pump chamber with inlet and outlet valves and also a plunger which periodically varies the volume of the pump chamber. To avoid the problems of dry running with very rapidly running pumps, and in order to overcome the resulting danger of destruction, the pump is arranged so that the closing force of at least one inlet valve of each pump chamber is controlled in dependence on the movement of the displacement member.

REFERENCES:
patent: 375027 (1887-12-01), Vanduzen
patent: 2846140 (1958-08-01), Kemper
patent: 2909123 (1959-10-01), Jennings
patent: 2930401 (1960-03-01), Cowan
patent: 3548721 (1970-12-01), Eisennegger
patent: 3920356 (1975-11-01), Bruggeman
patent: 4050860 (1977-09-01), Beres
patent: 4246924 (1981-01-01), Droitsch et al.
patent: 4413957 (1983-11-01), Sanders

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