Variable pressure and displacement reciprocating pump

Details Variable pressure and displacement reciprocating pump Variable pressure and displacement reciprocating pump

1980-04-24

1985-02-19

Croyle, Carlton R.

Pumps

Condition responsive control of drive transmission or pump...

Having means to hold or resist movement of pumping element

417216, F04B 4908

Patent

active

045002622

ABSTRACT:
The present invention relates to a reciprocating pump in which a plunger is reciprocated by means of a crankshaft, a connecting rod and a crosshead. The reciprocating pump further includes cushioning means which is disposed between the crosshead and the plunger and capable of adjusting its cushioning force and absorbing the plunger stroke, whereby the delivery pressure is adjustable through adjustment of the cushioning force of the cushioning means and the delivery volume or rate is also adjustable through absorption of the plunger stroke by the cushioning means.

REFERENCES:
patent: 3005412 (1961-10-01), Camp
patent: 3250218 (1966-05-01), Sinclair
patent: 3301195 (1967-01-01), Streeter
patent: 3306042 (1967-02-01), Crooks
patent: 3816028 (1974-06-01), Schouteeten et al.
patent: 4006797 (1977-02-01), Keske
patent: 4015913 (1977-04-01), Nakamura
patent: 4080108 (1978-03-01), Keske et al.

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