US Patent:
20070020094, Jan 25, 2007
Inventors:
John Giaimo - Weston FL, US
John Tirone - Moodus CT, US
Assignee:
United Technologies Corporation - Hartford CT
International Classification:
F04D 29/56
Abstract:
A variable vane actuation mechanism is comprised of a first drive vane arm and a second drive vane arm for driving a first variable vane array and a second variable vane array, respectively, of a stator vane section of a gas turbine engine. The first drive vane arm and second drive vane arm are connected to each other at a first end by a linkage. The first drive vane arm and second drive vane arm are connected at a second end to a first drive vane and a second drive vane, respectively, of the first and second variable vane arrays. The first drive vane arm and second drive vane arm respond in unison to a single actuation source connected to one of the first drive vane arm and second drive vane arm.