Structure for plunger pump

Details Structure for plunger pump Structure for plunger pump

1993-02-03

1994-06-14

Bertsch, Richard A.

Pumps

Condition responsive control of drive transmission or pump...

Having means to hold or resist movement of pumping element

417554, 92 23, F04B 4900

Patent

active

053204980

ABSTRACT:
A support structure for a plunger employed in a plunger pump, comprises a pump housing, a cylinder firmly fitted into a cylindrical hollow defined in said housing, a plunger slidably enclosed in the cylinder to provide a pumping action, a stopper arranged on an inner peripheral surface of the cylinder, and an engaging portion arranged on the outer peripheral surface of the plunger, for engaging with the stopper and for restricting an axially projecting amount of the plunger relative to the cylinder.

REFERENCES:
patent: 2936712 (1960-05-01), Gerpen
patent: 4014414 (1977-03-01), Yamamoto et al.
patent: 4970943 (1990-11-01), Saig et al.
patent: 5067881 (1991-11-01), Maehara
patent: 5090295 (1992-02-01), Cunningham et al.

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