Precompression effect in pump body
OwnerBrian Ochoa, Philippe Gambier +5inventors
InventorsBrian Ochoa, Philippe Gambier, Aude Faugere, Christopher Shen, Joe Hubenschmidt, Tze Wei Chua, Walter Taylor
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Abstract
The current application discloses various embodiments where a pre-compressive force is applied to a defined zone of the fluid end of a pump so as to extend the operational life of the fluid end by reducing stress and fatigue level at the defined zone of the fluid end. In one embodiment, the defined zone comprises one or more recesses near the piston bore of the fluid end. In another embodiment, the defined zone comprises one or more recesses near the inlet bore of the fluid end.
Claims20
A fluid end of a pump, said fluid end comprising:
- a piston bore, an inlet bore, an outlet bore and at least one pre-compressive element that creates a pre-compressive force in a defined zone of the fluid end.
A method of reducing fatigues of a fluid end of a pump, said method comprising:
- providing a fluid end comprising a piston bore, an inlet bore, and an outlet bore;
- providing a pre-compressive element;
- using the pre-compressive eminent to create a pre-compressive force in a defined zone of the fluid end.
An assembly comprising:
- a plurality of pump bodies each defining a piston bore, an inlet bore, an outlet bore and at least one raised surface element on one of the pump bodies thereof;
- at least a pair of end plates disposed on an outside portion of the pump bodies;
- and
- a plurality of fasteners connecting the pump bodies and end plates to form the pump assembly, the raised surface engaging on an adjacent pump body or an adjacent end plate, the fasteners and raised surface element providing a pre-compressive force in a defined zone of the pump body.
Dependencies are inferred from the claim text.