公开(公告)号：US20180291755A1

公开(公告)日：2018-10-11

申请号：US15481091

申请日：2017-04-06

Applicant: United Technologies Corporation

Inventor： Christopher M. Valva ,  Christopher T. Anglin ,  Brian P. Cigal

IPC: F01D11/00 ,  F01D25/16 ,  F01D25/08 ,  F16J15/16

Abstract: An insulated seal seat assembly comprises a shaft configured and arranged to rotate about an axial axis, a seal seat that is secured to the shaft, and a thermal insulator configured and arranged radially between the shaft and the seal seat.

公开(公告)号：US20180187769A1

公开(公告)日：2018-07-05

申请号：US15398373

申请日：2017-01-04

Applicant: United Technologies Corporation

Inventor： Christopher M. Valva ,  Christopher T. Anglin

IPC: F16H57/04 ,  F02C7/36 ,  F16H55/17 ,  F16H1/14

CPC classification number: F16H57/043 ,  F02C7/36 ,  F05D2260/4031 ,  F05D2260/98 ,  F16H1/14 ,  F16H55/17 ,  F16H57/0427 ,  F16H57/0495

Abstract: Aspects of the disclosure are directed to a gear comprising: gear teeth, a cone wall having an interior surface that forms a chamber, where the gear teeth extend circumferentially from a distal end of the cone wall, a dam that extends radially inward on the interior surface and is axially disposed between the cone wall and the gear teeth, and at least one aperture formed in the cone wall to allow fluid on the interior surface to exit the chamber, where the at least one aperture is located a first distance from the gear teeth along a length of the gear and the dam is located a second distance from the gear teeth along the length of the gear, and where the first distance is greater than the second distance.

公开(公告)号：US09739173B2

公开(公告)日：2017-08-22

申请号：US14500123

申请日：2014-09-29

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher M. Valva ,  Todd M. Lapierre

IPC: F01D25/20 ,  F02C7/36 ,  F01M11/02

CPC classification number: F01D25/20 ,  F01M11/02 ,  F02C7/36 ,  F05D2260/40311

Abstract: A casing for a fan drive gear system includes a cast body with an upper and a lower portion. The cast body defines an oil inlet and an oil outlet arranged below the oil outlet. An integrally cast oil channel extends between the inlet and outlet for conveying oil from the upper portion of the cast body portion to the lower portion of the cast body for providing a supply of lubrication to the gear system when oil pools in an upper portion of an auxiliary oil reservoir during negative-G flight events.

公开(公告)号：US20160146048A1

公开(公告)日：2016-05-26

申请号：US14905528

申请日：2014-07-10

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Christopher M. Valva ,  Brian P. Cigal

IPC: F01D25/20 ,  F01M1/02

Abstract: The present disclosure is applicable to all gear trains using a journal bearing as a means of supporting gear shaft rotation. It is related in some embodiments to a system and method for supplying lubricant to the journal bearings of a gear-turbofan engine gear train when the fan rotor is subjected to a wind-milling condition in both directions, either clockwise or counterclockwise.

Abstract translation: 本公开适用于使用轴颈轴承作为支撑齿轮轴旋转的装置的所有齿轮系。 在一些实施例中，当风扇转子在两个方向（顺时针或逆时针）经受风磨条件时，将润滑剂供应到齿轮 - 涡扇风扇发动机齿轮系的轴颈轴承的系统和方法是有关的。