Richard J Malott

US Patent:

42682207, May 19, 1981

Filed:

Mar 5, 1979

Appl. No.:

6/017608

Inventors:

Richard C. Malott - Indianapolis IN

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F01D 304

US Classification:

415104

Abstract:

A gas turbine engine having variable geometry flow controllers therein for controlling mass flow in accordance with engine operation includes a rotor with a wide variation in thrust forces thereon during different phases of engine operation countered by a variable axial load integrating device having a rotating hydraulic thrust compensating piston mounted forwardly of the rotor in association with a rotor thrust bearing and further including means for generating a centrifugal head in accordance with engine speed and wherein improved oil distribution panels are included to evenly distribute oil between the rotating piston and a nonrotating counterpiston to form a uniform depth of rotating oil automatically regulated by an integral, flow regulator having flow area therethrough varied in accordance with axial position of a thrust bearing carriage that has the variable rotor thrust loading imposed thereon.

US Patent:

44639562, Aug 7, 1984

Filed:

Jul 21, 1983

Appl. No.:

6/515693

Inventors:

Richard C. Malott - Indianapolis IN

Assignee:

General Motors Corporation - Detroit MI

International Classification:

F16J 1544
F01D 2518

US Classification:

277 12

Abstract:

A shield for disposition between a lubricated bearing and a labyrinth seal in a gas turbine engine having a rotating member rotatable about a vertical axis, the shield preventing lubricant contamination of the seal. The shield includes an inner helical baffle on the rotating member between the bearing and the seal and an outer helical baffle on a stationary support between the inner baffle and the seal. The inner and outer baffles radially overlap to foreclose lubricant drip onto the seal and have corresponding helical leads so that the inner baffle can be threaded through the outer baffle when the rotating member is installed on the support.

US Patent:

44025157, Sep 6, 1983

Filed:

Mar 17, 1982

Appl. No.:

6/359145

Inventors:

Richard C. Malott - Indianapolis IN

Assignee:

General Motors Corp. - Detroit MI

International Classification:

F16J 1544

US Classification:

277 24

Abstract:

A labyrinth seal of abradable design between a shaft and a partition separating regions of high and relatively lower gas pressure. The seal is located in close proximity to a gas permeable bearing also disposed between the shaft and the partition and located in the relatively lower pressure region. The seal permits limited leakage gas flow toward and through the bearing and pieces of seal material abraded during shaft rotation tend to entrain in the leakage gas flow. A baffle is disposed on the shaft between the seal and the bearing and defines a portion of a serpentine path for the leakage gas flow. A contamination trap containing a self-supporting adhesive material is formed on the baffle perpendicular to a portion of the serpentine path so that while the leakage gas turns 90. degree. at the trap, the heavier particles of abraded material impact on and are captured by the adhesive material.