Pump crosshead and connecting rod assembly
AssigneeFMC Technologies, Inc.
InventorRondall B. McKelroy
Life of this patent
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Abstract
A crosshead and connecting rod assembly for a pump comprises a connecting rod which includes a first end that is rotatably connected to the crankshaft of the pump, a second end that comprises a generally cylindrical configuration, and a shaft that extends between the first and second ends. The second end comprises at least one annular shoulder adjacent to the shaft, and the crosshead and connecting rod assembly further comprises a crosshead which includes a body that comprises a generally semi-cylindrical socket within which the second end is rotatably received and at least one trunnion that comprises a generally semi-cylindrical recess which aligns with the socket and within which the shoulder is rotatably received when the trunnion is connected to the body.
Claims17
In combination with a pump which includes at least one plunger that is reciprocated by a corresponding crankshaft, the improvement comprising a crosshead and connecting rod assembly which comprises:
- a connecting rod which includes:
- a first end which is rotatably connected to the crankshaft;
- a second end which comprises a generally cylindrical configuration;
- and
- a shaft which extends between the first and second ends;
- wherein the second end comprises at least one annular shoulder adjacent to the shaft;
- and
- a crosshead which is positioned between the connecting rod and the plunger and which includes:
- a body which comprises a generally semi-cylindrical socket within which the second end is rotatably received;
- and
- at least one trunnion which comprises a generally semi-cylindrical recess which aligns with the socket and within which the shoulder is rotatably received when the trunnion is connected to the body.
In combination with a pump which includes at least one plunger that is reciprocated by a corresponding crankshaft, the improvement comprising a crosshead and connecting rod assembly which comprises:
- a connecting rod which includes:
- a first end which is rotatably connected to the crankshaft;
- a second end which comprises a generally cylindrical configuration;
- and
- a shaft which extends between the first and second ends;
- wherein the second end comprises a pair of first and second annular shoulder located adjacent to and on opposite sides of the shaft;
- and
- a crosshead which is positioned between the connecting rod and the plunger and which includes:
- a body which comprises a generally semi-cylindrical socket within which the second end is rotatably received;
- and
- a pair of first and second trunnions which each comprise a generally semi-cylindrical recess which aligns with the socket and within which a corresponding one of the first and second shoulders is rotatably received when the first and second trunnions are connected to the body.
Dependencies are inferred from the claim text.