CAVITATION RESISTANT GEAR DRIVEN FUEL PUMP

A gear pump for a gas turbine engine including a first gear (24) having a plurality of gear teeth supported for rotation on a gear shaft relative to a second gear (26), wherein the gear teeth are formed from a steel base material and surfaces of the gear teeth are coated with a cavitation resistant...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SMITH, Blair, RANKIN, Kevin M, POTEET, Steven
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS WEAPONS
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Beschreibung
Zusammenfassung:	A gear pump for a gas turbine engine including a first gear (24) having a plurality of gear teeth supported for rotation on a gear shaft relative to a second gear (26), wherein the gear teeth are formed from a steel base material and surfaces of the gear teeth are coated with a cavitation resistant coating material, and a journal bearing for carrying a gear shaft load through a fluid film pressure between a surface of the gear shaft and a surface of the journal bearing, wherein at least a portion of the journal bearing is formed from a cavitation resistant base material.