Patent ID: 11898559
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 5:
6. A fuel supply system comprising:
a gear pump for moving fuel from a fuel tank to a combustor of a gas turbine engine;
the gear pump includes:
a pair of gear members having teeth in engagement and received within a housing;
the housing defining an inlet and an outlet and having end plates;
the gears having shaft portions on each of two sides of each of the two gears, the shaft portions being mounted in journal bearings;
the journal bearings each having a gear side face adjacent one of the two gears, and a remote face on a remote side of the journal bearing remote from each of the two gears, and there being a plurality of heat pipes in at least one of the journal bearings, the heat pipes moving heat from the gear face of the at least one of the journal bearings to the remote face; and
the plurality of heat pipes being enclosed by the housing, and extending generally in an axial direction from an end adjacent the gear face to an end adjacent the remote face;
wherein the cool end of the plurality of heat pipes is in the end plates; and
wherein the cool end of the plurality of heat pipes in onea first of the journal bearings are at a distinct angular relationship relative to the cool end of the plurality of heat pipes in an adjacent a second of the journal bearings, to ensure proper positioning in each of the first journal bearing and the second journal bearing.