Single cylinder pump

Details Single cylinder pump Single cylinder pump

1971-11-02

1976-03-30

Freeh, William L.

Pumps

Expansible chamber type

Having pumping chamber pressure responsive distributor

92168, 277 69, 277 73, F04B 2108, F16J 1518

Patent

active

039471578

ABSTRACT:
A reciprocating pump fabricated from an assembly including a body having a cylinder bore formed therein for receiving a reciprocating plunger, and with a transverse bore extending radially outwardly from the cylinder bore at a certain axial position, and passing through the wall of the pump body. A counterbore is formed along the cylinder bore and is arranged to receive a stacked assembly of guide means, packing means, and lantern ring means. The guides are operative to control the radial thrust on the plunger, while the lantern ring is arranged to provide communication from the interior of the cylinder bore to the atmosphere. The packing means includes a pair of axially displaced ring seals, one each being disposed on opposite sides of the lantern ring, and providing for mutual isolation between the pumping chamber of the pump and the crankcase.

REFERENCES:
patent: 2136239 (1938-11-01), Ernst
patent: 2281933 (1942-05-01), Gage
patent: 3238890 (1966-03-01), Sadler et al.
patent: 3362345 (1968-01-01), Sparger
patent: 3413929 (1968-12-01), Cook et al.
patent: 3503304 (1970-03-01), Comeau et al.

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