Wilho Victor Aho

US Patent:

52899004, Mar 1, 1994

Filed:

Dec 28, 1992

Appl. No.:

7/998091

Inventors:

Wilho V. Aho - West Palm Beach FL
Terry H. Strout - Palm City FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F01M 1104

US Classification:

1841051

Abstract:

The services normally associated with the lubrication oil tank used on aircraft are made dependent of each other by the judicious location of the various service housings, inlet ports and internal passages. The caps of the pressure fill port and overfill port are sequentially removable in order to prevent fill while the overfill port is blocked off. The overfill port and JOAP port are combined and internal valving automatically responds to the type of service called for.

US Patent:

43447406, Aug 17, 1982

Filed:

Sep 28, 1979

Appl. No.:

6/079915

Inventors:

Donald R. Trenschel - Lake Park FL
Wilho V. Aho - West Palm Beach FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F01D 530

US Classification:

416221

Abstract:

The present invention provides an improved sideplate of the type adhered to the side of a rotor disk for the retention of rotor blades and for blocking the leakage of working medium gases across the rotor disk. The elimination of retaining bolts and rivets is sought. In one effective embodiment of the present invention, the sideplate is adhered to the disk at a bayonet type joint. The sideplate is elastically deformable to enable assembly of the sideplate onto the disk with abutting surfaces of the disk and sideplate in interference engagement at release. The side surface of the disk is tapered in cross section geometry to accommodate deformation of the sideplate.

US Patent:

49479636, Aug 14, 1990

Filed:

May 11, 1989

Appl. No.:

7/350869

Inventors:

Wilho V. Aho - West Palm Beach FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

F16N 1706

US Classification:

184 6

Abstract:

Swirl vessel (14) located within oil tank (28) receives return oil (12) and delivers supply oil (10). The vessel is vented (50) to outside the oil tank. Surplus oil continuously drains (36) to the tank (10) interior. Make up oil from the tank is continuously ejected back into the swirl vessel (14) by various make up lines (46, 56, 68, 60) connected to the low pressure zone (49) of swirl inducing nozzles or injectors (18). The apparatus will operate at any attitude.

US Patent:

55870686, Dec 24, 1996

Filed:

Nov 15, 1994

Appl. No.:

8/340498

Inventors:

Wilho V. Aho - West Palm Beach FL
Stephen R. Jones - Tequesta FL
Gregory E. Chetta - Palm Beach Gardens FL
Terry H. Strout - Palm City FL

Assignee:

United Technologies Corporation - Hartford CT

International Classification:

B01D 1900
B01D 2126

US Classification:

210188

Abstract:

The deaerator includes a chamber that includes vortex generators that centrifuge the oil/air to separate the components and the chamber may operate in all attitudes. In addition wake separators mounted in the inlet of the chamber remove a large percentage of the air from the oil prior to entering the chamber and reintroduce the separated air component in the air removal tube. A dam in the air removal tube is located downstream of the inlet of the wake separated air to assure no oil is extracted from the air tube leaving the chamber. The wake separator consists of one or more tubes extending transversely to the flow of the oil/air stream and the air is removed through rearwardly facing apertures formed in the tube(s).

US Patent:

8152450, Apr 10, 2012

Filed:

Nov 10, 2011

Appl. No.:

13/293885

Inventors:

Wilho V Aho - West Palm Beach FL, US

Assignee:

Florida Turbine Technologies, Inc. - Jupiter FL

International Classification:

F04D 11/02

US Classification:

415112

Abstract:

A gas turbine engine with a floating air seal to form a seal between a rotor disk and an adjacent stator vane segment shroud and allow for both axial and radial shifting of the rotor disk with respect to the stator while maintaining the sealing capability. The floating air seal includes an annular piston that slides within an annular groove formed within the stator in an axial direction. The annular piston includes an annular groove on the rotor disk side to form an air cushion against the rotor disk, a pressure buffer surface on the opposite end, and a central passage to supply the air cushion chamber with pressurized fluid from the buffer pressure chamber. A balancing force on the annular piston is formed between the air cushion formed and the pressure force acting to push the annular piston toward the rotor surface.