Pump for metering two distinct fluids

Details Pump for metering two distinct fluids Pump for metering two distinct fluids

1981-02-20

1983-10-25

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

417509, 417518, 2221292, 222135, 222145, F04B 1502, F04B 2102

Patent

active

044116012

ABSTRACT:
A pump for metering two fluids comprising a cylinder having a first and second inlet conduit and an outlet conduit, means for closing the communication between the cylinder and the first inlet conduit and between the cylinder and the outlet conduit alternately, there being present inside the cylinder a first floating solid piston for drawing in a primary fluid from the first inlet conduit and discharging it into the outlet conduit and a second piston for drawing in a secondary fluid from the second inlet conduit which piston has at least one port provided with one or more valves through which the secondary fluid can flow to occupy the space between the two pistons where it can transmit the motion of the second piston to the first piston, and a by-pass for conveying secondary fluid from the space between the pistons to the outlet conduit.

REFERENCES:
patent: 2566436 (1951-09-01), Waite
patent: 2585172 (1952-02-01), Reynolds
patent: 3207384 (1965-09-01), Wall
patent: 3228560 (1966-01-01), Tacchi
patent: 3254845 (1966-06-01), Schlosser
patent: 3930756 (1976-01-01), Bruggeman
patent: 4047850 (1977-09-01), Berthelot
patent: 4192361 (1980-03-01), Moser
patent: 4332335 (1982-06-01), Florentini

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