Piston ball end
AssigneeHamilton Sundstrand Corporation
InventorsJecee Jarman, Zachary Allen Ray Le Duc
Life of this patent
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Abstract
In accordance with at least one aspect of this disclosure, a system includes, a cylinder barrel configured to rotate within a pump housing of a pump operatively connected to a driving member of the pump via a first shaft. A piston is seated within a bore defined in the cylinder barrel. The piston is operatively connected to the driving member of the pump via a second shaft. The first shaft and the second shaft each include a ball end configured to seat within the driving member. In embodiments, the ball end of at least the second shaft is of silicon nitride.
Claims13
A system, comprising:
- a cylinder barrel configured to rotate within a pump housing of a pump operatively and directly connected to a driving member of the pump via a first shaft;
- a piston seated within a bore defined in the cylinder barrel, the piston operatively and directly connected to the driving member of the pump via a second shaft, wherein the first shaft and the second shaft include a ball end configured to seat within the driving member, wherein the ball end of at least the second shaft is of silicon nitride.
A method comprising:
- forming a cylinder barrel of a piston pump;
- forming a plurality of pistons configured to be inserted into the cylinder barrel, each piston including a shaft having a ball end at a distal end thereof, the ball end being of silicon nitride;
- and
- installing the cylinder barrel and plurality of pistons into the piston pump, herein forming the cylinder barrel further includes,
- forming a main cylindrical body;
- forming a center recess configured to seat a drive shaft therein;
- and
- forming a plurality of bores each extending in an axial direction through the main cylindrical body, the plurality of bores forming a pattern disposed circumferentially about the main cylindrical body radially outward of the center recess, configured to seat a respective piston therein and allow fluid flow therethrough.
Dependencies are inferred from the claim text.