US 2026/0132850 A1 · SYSTEMS, ASSEMBLIES, APPARATUSES, AND METHODS PROVIDING ENHANCED SEAL BETWEEN MACHINE COMPONENTS

Abstract

Systems, assemblies, apparatuses, and methods herein may provide an enhanced fluid seal between two machine components. A seal may include a seal body having a seal body surface and a seal cross-section at least partially defined by the seal body surface. The seal body may include a first portion including a first material, the first material having a first coefficient of friction, and a second portion including a second material, the second material having a second coefficient of friction less than the first coefficient of friction, thereby to reduce friction at a seal interface between the second portion of the seal and one of the machine components, so as to reduce heat generation and extend a service life of the seal as the machine component moves relative to another machine component during operation of the machine.

Claims30

Dependent claims

A fluid end comprising:

a fluid end block at least partially defining a fluid end bore;
a packing recess associated with the fluid end bore, the packing recess at least partially defining a packing recess bore;
and
a packing assembly at least partially received in the packing recess bore, the packing assembly positioned to enhance a seal between the packing recess and a plunger reciprocating relative to the fluid end block, the packing assembly comprising:
(a) a packing assembly seal comprising a seal body having a seal body surface and a seal cross-section at least partially defined by the seal body surface, the seal body comprising:
(i) a first portion including a first material, the first material having a first coefficient of friction,
(ii) a second portion including a second material, the second material having a second coefficient of friction less than the first coefficient of friction, thereby to reduce friction at a seal interface between the packing assembly seal and the plunger, so as to reduce heat generation and extend a service life of the packing assembly seal as the plunger moves relative to the packing recess;
and
(b) one or more of:
(i) a lantern ring;
(ii) a lube seal;
(iii) an adaptor ring;
(iv) a pressure ring;
or
(v) a junk ring.

12 more elements

A packing assembly to enhance a seal between a surface of a first component of a fluid end and a surface of a second component of the fluid end, the packing assembly comprising:

(a) a packing assembly seal comprising a seal body having a seal body surface and a seal cross-section at least partially defined by the seal body surface, the packing assembly seal comprising one of a header ring, a pressure ring, or a scraper ring, and the seal body having:
(i) a first portion including a first material, the first material having a first coefficient of friction;
and
(ii) a second portion including a second material, the second material having a second coefficient of friction less than the first coefficient of friction, thereby to reduce friction at a seal interface between the packing assembly seal and the second component, so as to reduce heat generation and extend a service life of the packing assembly seal as the second component moves relative to the first component, the first component comprising a stationary component relative to the second component during operation of the fluid end, and the second component comprising one of a reciprocating component or a rotating component relative to the first component during operation of the fluid end;
and
(b) one or more of:
(i) a lantern ring;
(ii) a lube seal;
(iii) an adaptor ring;
(iv) a pressure ring;
or
(v) a junk ring.

9 more elements

A packing assembly seal to enhance a seal between a surface of a first component of a fluid end and a surface of a second component of the fluid end, the packing assembly seal comprising:

a seal body having a seal body surface and a seal cross-section at least partially defined by the seal body surface, the seal body comprising:
(a) a first portion including a first material, the first material having a first coefficient of friction;
and
(b) a second portion including a second material, the second material having a second coefficient of friction less than the first coefficient of friction, thereby to reduce friction at a seal interface between the packing assembly seal and the second component, so as to reduce heat generation and extend a service life of the packing assembly seal as the second component moves relative to the first component, the first component comprising a stationary component relative to the second component during operation of the fluid end, and the second component comprising one of a reciprocating component or a rotating component relative to the first component during operation of the fluid end.

1 more element

Dependencies are inferred from the claim text.

Systems, assemblies, apparatuses, and methods providing enhanced seal between machine components

Life of this patent

Systems, assemblies, apparatuses, and methods providing enhanced seal between machine components

Life of this patent

Abstract

Claims30