Reciprocating plunger pump with bi-directional multi-component crankcase seal
AssigneeA.W. Chesterton Company
InventorsThomas RICHARD, Michael POLANSKY
Life of this patent
Estimating the term…
Abstract
A bi-directional sealing assembly for providing a fluid seal for a pony rod in stationary equipment. The sealing assembly can include first and second sealing assemblies and an intermediate mechanical component. The sealing subassemblies can include a flange element configured for contacting the pony rod. The flange elements contact and form a bi-directional fluid seal with the pony rod when mounted thereabout, such that the first sealing subassembly forms a first fluid seal when the pony rod moves in a first axial direction and the second sealing subassembly forms a second fluid seal when the pony rod moves in a second axial direction opposite to the first axial direction.
Claims14
A bi-directional sealing assembly for providing a fluid seal for a pony rod in stationary equipment, comprising
- a first sealing subassembly having
- a first primary sealing element having a main body, wherein the main body has a top surface, an opposed bottom surface, and a side surface having a first side channel formed therein, and
- a first biasing element sized and configured for seating in the first side channel, a second sealing subassembly having
- a second primary sealing element having a main body, wherein the main body has a top surface, an opposed bottom surface, and a side surface having a second side channel formed therein, and
- a second biasing element sized and configured for seating in the second side channel, and
- an intermediate mechanical component disposed between the first sealing subassembly and the second sealing subassembly to help position the first and second sealing subassemblies relative to each other,
- wherein the first sealing subassembly, the second sealing subassembly, and the intermediate mechanical component are configured to be axially spaced and aligned and concentrically disposed about the pony rod when mounted thereabout.
Dependencies are inferred from the claim text.