U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Gas turbine engine and a rotor for a gas turbine engine

Patent 7507070 Issued on March 24, 2009. Estimated Expiration Date: Icon_subject July 25, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2479046

2655308

2659530

3339933

Turbine engine compressor
Patent #: 4277222
Issued on: 07/07/1981
Inventor: Barbeau

Method and structure for preventing the ignition of titanium fires
Patent #: 4642027
Issued on: 02/10/1987
Inventor: Popp

Gas turbine engine cooling apparatus
Patent #: 6089821
Issued on: 07/18/2000
Inventor: Maguire, et al.

Gas turbine engine and a rotor for a gas turbine engine Patent #: 6575699
Issued on: 06/10/2003
Inventor: Jones

Inventor

Assignee

Application

No. 11188092 filed on 07/25/2005

US Classes:

415/200Specific casing or vane material

Examiners

Primary: Verdier, Christopher

Attorney, Agent or Firm

International Class

F01D 5/08

Abstract

A rotor (38) for a gas turbine engine (10) has a low emissivity surface finish, or high emissivity surface finish (44), on at least a portion of its surface (42) to reduce temperature differentials between an upper portion and a lower portion of the rotor (38). This reduces bowing of the rotor (38) to allow the gas turbine engine (10) to be started without harmful vibrations of the rotor (38).

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