Lubrication and seal ring assembly for pump

Details Lubrication and seal ring assembly for pump Lubrication and seal ring assembly for pump

1994-05-05

1996-02-27

Ryznic, John E.

Expansible chamber devices

With lubricating means

Portion of expansible chamber device includes solid...

277188A, 277DIG6, F01B 3110, B65D 5300

Patent

active

054939518

ABSTRACT:
A fluid end including a cylinder has a bore extending therethrough. A plunger is reciprocally disposed in the bore. A packing element is disposed in the bore to seal the annular space between the plunger and bore and includes a lubrication ring formed of metallic fibers and impregnated with a solid lubricant, a seal ring formed of a high-lubricity polymeric material, and means for positioning the lubrication and seal rings in the bore.

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