• Patent Title: Recirculating lubrication system with sealed lubrication oil storage
  • Application No.: US11895961
    Application Date: 2007-08-28
  • Publication No.: US08356694B2
    Publication Date: 2013-01-22
  • Inventor: Anthony C Jones
  • Applicant: Anthony C Jones
  • Applicant Address: US CT East Hartford
  • Assignee: Pratt & Whitney
  • Current Assignee: Pratt & Whitney
  • Current Assignee Address: US CT East Hartford
  • Agent Stephen G. Mican
  • Main IPC: F01D25/18
  • IPC: F01D25/18
Recirculating lubrication system with sealed lubrication oil storage
Abstract:
A recirculating lubrication system for a gas turbine engine comprises: a storage reservoir for storing a quantity of lubrication oil for the engine; an operating reservoir for supplying lubrication oil for the engine; a transfer valve with an inlet coupled to an outlet of the storage reservoir and an outlet coupled to an inlet of the operating reservoir to transfer the quantity of lubrication oil from the storage reservoir to the operating reservoir before starting the engine; and a pump for circulating the transferred lubrication oil through at least one engine bearing and back to the operating reservoir.
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