公开(公告)号：US11746907B2

公开(公告)日：2023-09-05

申请号：US16791269

申请日：2020-02-14

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Jonathan F. Zimmitti ,  Nasr A. Shuaib

IPC: F16J15/32 ,  F16J15/3284 ,  F02C7/28

CPC classification number: F16J15/3284 ,  F02C7/28 ,  F05D2220/32 ,  F05D2240/55

Abstract: A seal assembly includes a housing that includes a seal flange at least partially defining a seal opening. A carbon seal is located at least partially in the seal opening and includes a first axially facing surface. The seal flange includes an axially facing surface that has a carbide based coating and a diamond-like carbon coating in engagement with the first axially facing surface on the carbon seal.

公开(公告)号：US10995673B2

公开(公告)日：2021-05-04

申请号：US15410113

申请日：2017-01-19

Applicant: United Technologies Corporation

Inventor： Gabriel L. Suciu ,  Hung Duong ,  Jonathan F. Zimmitti ,  William G. Sheridan ,  Michael E. McCune ,  Brian Merry

IPC: F02C7/32 ,  F02C3/06 ,  F02C7/18 ,  F02C7/36 ,  F02C7/268 ,  F01D15/10 ,  F01D25/12 ,  F16H1/22 ,  H02K7/116 ,  H02K7/18 ,  F01D15/12 ,  F02C7/275

Abstract: An exemplary gas turbine engine assembly includes a first spool having a first turbine operatively mounted to a first turbine shaft, and a second spool having a second turbine operatively mounted to a second turbine shaft. The first and second turbines are mounted for rotation about a common rotational axis within an engine static structure. The first and second turbine shafts are coaxial with one another. First and second towershafts are respectively coupled to the first and second turbine shafts. An accessory drive gearbox has a set of gears. A compressor is driven by the first towershaft. The engine assembly further includes a starter generator assembly, and a transmission coupling the starter generator assembly to the first set of gears. The transmission is transitionable between a first mode where the starter generator assembly is driven at a first speed relative to the second towershaft, and a second mode where the starter generator assembly is driven at a different, second speed relative to the second towershaft.

公开(公告)号：US10358981B2

公开(公告)日：2019-07-23

申请号：US15484376

申请日：2017-04-11

Applicant: United Technologies Corporation

Inventor： Gabriel L. Suciu ,  Hung Duong ,  Jonathan F. Zimmitti ,  William G. Sheridan ,  Michael E. McCune ,  Brian Merry

IPC: F02C7/32 ,  F02C7/18 ,  F02C7/36

Abstract: A gas turbine engine comprises a low speed spool and a high speed spool, with each of the spools including a turbine to drive a respective one of the spools. The high speed spool rotates at a higher speed than the low speed spool. A high speed power takeoff is driven to rotate by the high speed spool, and a low speed power takeoff is driven to rotate by the low speed spool. The high speed power takeoff drives a starter generator and a permanent magnet alternator. The low speed power takeoff drives a variable frequency generator.

公开(公告)号：US10054008B2

公开(公告)日：2018-08-21

申请号：US14617163

申请日：2015-02-09

Applicant: United Technologies Corporation

Inventor： Lakshminarayan S. Bettagere ,  Keven Van Duyn ,  Mark R. Sondeen ,  Jonathan F. Zimmitti

IPC: F01D25/28 ,  F01D15/12 ,  F16H57/02 ,  F02C7/32

CPC classification number: F01D25/28 ,  B64D33/00 ,  F01D15/12 ,  F02C7/32 ,  F05D2230/31 ,  F05D2230/312 ,  F05D2230/90 ,  F05D2240/90 ,  F05D2260/30 ,  F05D2260/4031 ,  F05D2260/96 ,  F05D2300/6111 ,  F16H57/02 ,  F16H2057/02039

Abstract: A gearbox assembly includes a housing structure, a shear bracket that connects the housing structure to a hanger to hold the housing structure relative to a turbomachine, and a thermal spray layer between the shear bracket and the housing structure.

公开(公告)号：US09605562B2

公开(公告)日：2017-03-28

申请号：US14617178

申请日：2015-02-09

Applicant: United Technologies Corporation

Inventor： Lakshminarayan S. Bettagere ,  Keven Van Duyn ,  Mark R. Sondeen ,  Jonathan F. Zimmitti

IPC: F01D25/28 ,  F02C7/32 ,  F02M26/67

CPC classification number: F01D25/28 ,  F02C7/32 ,  F02M26/67 ,  F05D2230/642 ,  F05D2250/241 ,  F05D2260/30 ,  F05D2260/37 ,  Y02T50/675

Abstract: An exemplary gearbox assembly includes a shear bracket connectable to a flange of a housing structure, and a support pin extending along a longitudinal axis, the support pin supporting the shear bracket relative to a turbomachine, the shear bracket moveable axially relative to the support pin.

公开(公告)号：US11578803B2

公开(公告)日：2023-02-14

申请号：US16679882

申请日：2019-11-11

Applicant: United Technologies Corporation

Inventor： Masayoshi Sonokawa ,  Jonathan F. Zimmitti ,  Nasr A. Shuaib

IPC: F16J15/34 ,  F02C7/28

Abstract: An assembly includes a housing, a carrier, a spring element and a seal element. The housing includes a bore and an annular groove that extends axially along a centerline into the housing from the bore. The carrier projects axially along the centerline into the annular groove. The carrier is configured to translate axially along the centerline relative to the housing. The spring element is arranged within the annular groove. The spring element is configured to bias the carrier axially away from the housing along the centerline. The seal element is mounted to the carrier and arranged within the bore.

公开(公告)号：US20210254719A1

公开(公告)日：2021-08-19

申请号：US16791269

申请日：2020-02-14

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Jonathan F. Zimmitti ,  Nasr A. Shuaib

IPC: F16J15/3284 ,  F02C7/28

Abstract: A seal assembly includes a housing that includes a seal flange at least partially defining a seal opening. A carbon seal is located at least partially in the seal opening and includes a first axially facing surface. The seal flange includes an axially facing surface that has a carbide based coating and a diamond-like carbon coating in engagement with the first axially facing surface on the carbon seal.

公开(公告)号：US20210254628A1

公开(公告)日：2021-08-19

申请号：US16791298

申请日：2020-02-14

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Jonathan F. Zimmitti ,  Nasr A. Shuaib

IPC: F04D29/12 ,  F16J15/34

Abstract: A seal assembly includes a housing at least partially defining a seal opening and at least partially surrounding a rotatable shaft. A carbon seal is located at least partially in the seal opening and includes a sealing surface. The rotatable shaft includes a radially facing surface that has a carbide based coating and a diamond-like carbon coating in engagement with the sealing surface on the carbon seal.

公开(公告)号：US20210254486A1

公开(公告)日：2021-08-19

申请号：US16791324

申请日：2020-02-14

Applicant: United Technologies Corporation

Inventor： Pantcho P. Stoyanov ,  Jonathan F. Zimmitti ,  Nasr A. Shuaib

IPC: F01D11/00 ,  F01D25/00 ,  F01D25/18 ,  F16J15/16 ,  F16J15/30

Abstract: A seal assembly includes a carbon seal that has a sealing surface. A seal seat has a sealing surface and is positioned for rotation relative to the carbon seal. A diamond-like carbon coating at least partially forms the sealing surface on the seal seat.

公开(公告)号：US20210140547A1

公开(公告)日：2021-05-13

申请号：US16679882

申请日：2019-11-11

Applicant: United Technologies Corporation

Inventor： Masayoshi Sonokawa ,  Jonathan F. Zimmitti ,  Nasr A. Shuaib

IPC: F16J15/34 ,  F02C7/28

Abstract: An assembly includes a housing, a carrier, a spring element and a seal element. The housing includes a bore and an annular groove that extends axially along a centerline into the housing from the bore. The carrier projects axially along the centerline into the annular groove. The carrier is configured to translate axially along the centerline relative to the housing. The spring element is arranged within the annular groove. The spring element is configured to bias the carrier axially away from the housing along the centerline. The seal element is mounted to the carrier and arranged within the bore.