John G Mcclain

US Patent:

48591491, Aug 22, 1989

Filed:

Mar 10, 1989

Appl. No.:

7/321822

Inventors:

John C. McClain - Plainfield IN

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F01D 532

US Classification:

416215

Abstract:

A locking system for blades in a circumferential dovetail groove in a rotor of a gas turbine engine, the blades having dovetail roots in the groove and platforms resting on steady rest flanges on the outside surface of the rotor on opposite sides of the slot between converging shoulders of the dovetail groove. The blade locking system includes an inner lock member between roots of a pair of adjacent blades, an outer lock member captured in aligned notches in the steady rest flanges between the rotor and the platforms of the adjacent blades, and a screw extending through a clearance hole in the outer lock member into a threaded bore in the inner lock member. When the screw is tightened, the inner and outer lock members are clamped against the rotor.

US Patent:

49900560, Feb 5, 1991

Filed:

Nov 16, 1989

Appl. No.:

7/437240

Inventors:

John C. McClain - Plainfield IN
Patrick D. Murphy - Indianapolis IN
David S. Huelster - Indianapolis IN

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F01D 102
F04D 2956

US Classification:

415160

Abstract:

A stator vane stage in a split-case, variable geometry axial flow compressor includes two 180-degree spoke-like arrays of stator vanes on upper and lower case halves of the compressor case and a pair of unitary, 180-degree arc shroud ring segments. Each stator vane has a pivot shaft at one end rotatably supported in a radial bore in the corresponding case half by a bushing and a cylindrical vane button at the other end. Each shroud ring segment has a corresponding plurality of cylindrical vane button sockets in an outer surface thereof which rotatably receives a corresponding vane button. The spoke-like array of the stator vanes rigidly positions the shroud ring segments relative to the compressor case. To assemble the shroud ring segments to the stator vanes, the shroud ring segments are first resiliently squeezed radially inward while the vane buttons are sequentially inserted into the corresponding vane button sockets and then released to spring back to their true 180-degree arc shapes in which they are captured on the stator vanes.

Address:

5204 Choctaw Rdg Way, Indianapolis, IN 46239

VIN:

4A3AB56F37E036184

Make:

MITSUBISHI

Model:

GALANT

Year:

2007