US20110148235A1 - Generator packaging arrangement - Google Patents

Generator packaging arrangement Download PDF

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Publication number
US20110148235A1
US20110148235A1 US12/787,381 US78738110A US2011148235A1 US 20110148235 A1 US20110148235 A1 US 20110148235A1 US 78738110 A US78738110 A US 78738110A US 2011148235 A1 US2011148235 A1 US 2011148235A1
Authority
US
United States
Prior art keywords
generator
shaft assembly
recited
drive shaft
drive gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/787,381
Other languages
English (en)
Inventor
Glenn C. Lemmers, JR.
David S. Behling
Timothy R. Welch
Mark A. Osborn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hamilton Sundstrand Corp
Original Assignee
Hamilton Sundstrand Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hamilton Sundstrand Corp filed Critical Hamilton Sundstrand Corp
Priority to US12/787,381 priority Critical patent/US20110148235A1/en
Assigned to HAMILTON SUNDSTRAND CORPORATION reassignment HAMILTON SUNDSTRAND CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LEMMERS, GLENN C., JR., BEHLING, DAVID S., OSBORN, MARK A., Welch, Timothy R.
Publication of US20110148235A1 publication Critical patent/US20110148235A1/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/108—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/06—Machines characterised by the presence of fail safe, back up, redundant or other similar emergency arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/20—Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears

Definitions

  • the present disclosure relates to a generator packaging arrangement which facilitates heavier generator installation onto smaller gearboxes without adversely affecting the gearbox weight yet maintains desired generator design features.
  • An accessory system includes a generator integrally mounted with an accessory gearbox such that a drive gear of the generator is in meshing engagement with the geartrain.
  • a generator includes a drive shaft assembly supported within a generator housing.
  • PMG permanent magnet generator
  • FIG. 1 is a general perspective view of a generator which mounts to an aircraft accessory gearbox;
  • FIG. 2 is a schematic view of the generator connected to the accessory gearbox
  • FIG. 3 is an electrical schematic of the generator.
  • FIG. 1 schematically illustrates a generator 20 which mounts to an aircraft accessory gearbox AG (illustrated schematically) though a drive gear 20 G which rotates about a generator axis of rotation A to form an accessory gearbox system 10 .
  • an Integrally Mounted Gearbox Generator and a 2-Pole Integrally Mounted Gearbox Generator may be utilized.
  • the generator may alternatively be a starter generator or other such machines.
  • a 2-pole machine operates at a relatively higher speed and may have a relatively larger core than a 4-pole machine, however a 4-pole machine provides relatively greater rotor mechanical strength and may have relatively greater reliability.
  • any pole count design generator may be integrated with an accessory gearbox AG as described herein.
  • the generator 20 includes a generator housing 20 H which defines a mounting flange 20 F that is axially outboard of the drive gear 20 G relative to the accessory gearbox AG.
  • the drive gear 20 G extends through a side area of the generator housing 20 H at a scallop 21 to mesh with the geartrain G within the accessory gearbox AG.
  • the drive gear 20 G is integral with the geartrain G of the accessory gearbox AG. That is, the drive gear 20 G is part of the geartrain G such that gears downstream of the drive gear 20 G are utilized to drive associated accessory systems.
  • the generator 20 generally includes a main generator power section 22 , an exciter 24 , a rectifier assembly 26 and an optional permanent magnet generator (PMG) 28 .
  • the generator 20 provides a packaging arrangement in which the heaviest portions of the generator 20 such as the main generator power section 22 are located generally adjacent to the gearbox mounting flange 20 F and at least partially within the accessory gearbox AG.
  • the main generator power section 22 provides alternating current (AC) power to an aircraft electrical bus (not shown).
  • the exciter 24 provides excitation current to the field of the main generator power section 22 .
  • the rectifier assembly 26 provides conversion of exciter armature alternating current (AC) power into direct current (DC) power for the main field portion of the main generator power section 22 . If generator self-excitation is required, the generator 20 will also include the PMG 28 which provides AC power to the generator control unit for generator field excitation power.
  • the main generator power section 22 , the exciter 24 and the optional PMG 28 are mounted on a common rotor shaft assembly 30 which is supported within the generator housing 20 H of the generator 20 by main bearings 34 A, 34 B.
  • the gearbox mounting flange 20 F and the main generator power section 22 are axially located between the main bearings 34 A, 34 B, the exciter 24 is mounted on the rotor shaft assembly 30 axially outboard of the second main bearing 34 B.
  • the optional PMG 28 may either be axially outboard of the main generator power section 22 or opposite the generator drive gear G of the main generator power section 22 and the exciter 24 is mounted on the same side of the gearbox as the main generator power section 22 .
  • the rectifier assembly 26 is mounted internal to the rotor shaft assembly 30 .
  • the rectifier assembly 26 typically includes three or six discrete diodes 36 arranged such that they provide rectification of the AC power developed by the exciter 24 .
  • the DC output of the rectifier assembly 26 is fed into the main field of the main generator power section 22 .
  • the diode housing 38 provides support to the diodes 36 , electrical connections and insulation of the various electrical circuits. It should be understood that additional components may be provided within the diode housing 38 to provide support and electrical insulation.
  • the three phase output of the exciter 24 is connected to the rotating rectifier AC connections and the DC output of the rectifier assembly 26 is connected to the main generator power section 22 .
  • the AC output of the exciter 24 is provided to the rectifier assembly 26 via lead wires which extend inward from the exciter 24 to the rectifier assembly 26 .
  • the lead wires are attached to the individual windings within the exciter 24 and connected individually to the three AC circuits within the rectifier assembly 26 .
  • the DC output of the rectifier assembly 26 is connected to the generator power section 22 via wires or bus bars which extend axially and radially from the rectifier assembly 26 to the generator power section 22 .
  • the generator 20 arrangement disclosed herein also allows a resolver (not shown) to be packaged therein.
  • the resolver is a rotary device that includes a rotor and a stator.
  • the resolver rotor is mounted to the rotor shaft assembly 30 and the stator is mounted to the housing.
  • the resolver provides an electrical signal that can be used by a control unit for the generator or starter/generator to identify the position of the generator or starter/generator rotor relative to the generator housing 20 H.
  • the exact construction of the resolver rotor and stator varies, and may consist of a wound rotor or a solid rotor.
  • the resolver stator consists of one or more windings which couple with the rotating magnetic field produced by the resolver rotor. This coupling produces an electrical signal within the stator windings that is fed to the control unit to determine rotor position. Rotor position information is used by the control unit to determine the appropriate control signals that must be applied to the generator or starter/generator to achieve proper
  • the generator 20 provides a packaging arrangement in which the heaviest portions of the generator 20 are located close to the gearbox mounting flange 20 F. This minimizes the overhung moment that must be reacted by the accessory gearbox AG and allows both the generator housing and accessory gearbox housings to be lighter. This packaging arrangement also minimizes housing and shaft/bearing weight between the generator and gearbox as they are share components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Packages (AREA)
  • Packaging Of Machine Parts And Wound Products (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
US12/787,381 2009-12-18 2010-05-25 Generator packaging arrangement Abandoned US20110148235A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/787,381 US20110148235A1 (en) 2009-12-18 2010-05-25 Generator packaging arrangement

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US28445209P 2009-12-18 2009-12-18
US28445109P 2009-12-18 2009-12-18
US28445309P 2009-12-18 2009-12-18
US12/787,381 US20110148235A1 (en) 2009-12-18 2010-05-25 Generator packaging arrangement

Publications (1)

Publication Number Publication Date
US20110148235A1 true US20110148235A1 (en) 2011-06-23

Family

ID=43531029

Family Applications (3)

Application Number Title Priority Date Filing Date
US12/787,353 Active 2032-02-03 US8796892B2 (en) 2009-12-18 2010-05-25 Multi-pole generator packaging arrangement having a disconnection system
US12/787,381 Abandoned US20110148235A1 (en) 2009-12-18 2010-05-25 Generator packaging arrangement
US12/787,365 Active 2031-01-12 US8432079B2 (en) 2009-12-18 2010-05-25 2-pole generator packaging arrangement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US12/787,353 Active 2032-02-03 US8796892B2 (en) 2009-12-18 2010-05-25 Multi-pole generator packaging arrangement having a disconnection system

Family Applications After (1)

Application Number Title Priority Date Filing Date
US12/787,365 Active 2031-01-12 US8432079B2 (en) 2009-12-18 2010-05-25 2-pole generator packaging arrangement

Country Status (3)

Country Link
US (3) US8796892B2 (de)
EP (3) EP2337190A2 (de)
CN (3) CN102104294B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9758238B2 (en) 2012-09-05 2017-09-12 Turbomeca Accessory drive gearbox for controlling the flaps of an aircraft
US11134585B2 (en) * 2019-05-31 2021-09-28 Hamilton Sundstrand Corporation Aircraft power electronic unit and method of cooling

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9650964B2 (en) * 2010-12-28 2017-05-16 General Electric Company Accessory gearbox with a starter/generator
US10601281B2 (en) * 2012-03-26 2020-03-24 Joy Global Surface Mining Inc. Modular direct drive system for an industrial machine
CN102857009B (zh) * 2012-04-21 2015-07-29 广东明阳风电产业集团有限公司 一种风力发电机组用发电机外壳
JP5274702B1 (ja) * 2012-06-28 2013-08-28 株式会社一宮電機 モータ駆動システム
US9057407B2 (en) * 2012-11-27 2015-06-16 Hamilton Sundstrand Corporation Disconnect assembly
US9611787B2 (en) 2015-05-18 2017-04-04 General Electric Company Accessory apparatus and method of assembling accessories with a turbine engine
EP3494320B1 (de) * 2016-08-05 2021-01-27 Safran Electrical & Power Wellenklemmring

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US4545470A (en) * 1983-12-14 1985-10-08 Sundstrand Corporation Narrow tolerance range slip clutch
US4997072A (en) * 1989-08-21 1991-03-05 Sundstrand Corporation Rotating concentric shaft disconnect actuating mechanism for an integrated drive generator
US5023789A (en) * 1990-06-04 1991-06-11 Sundstrand Corporation Temperature compensated closed loop control of a hydraulically controlled clutch and APU starting system
US5029689A (en) * 1990-09-10 1991-07-09 Sundstrand Corporation Spring clutch assembly for use in a transmission
US5174109A (en) * 1990-10-25 1992-12-29 Sundstrand Corporation Clutch to disconnect loads during turbine start-up
US5325009A (en) * 1993-05-07 1994-06-28 Sundstrand Corporation Rotor shaft with integral wedge retainers for core of a two-pole generator
US5562190A (en) * 1995-06-07 1996-10-08 Sundstrand Corporation Hydraulic clutch control system with fluid coupling pre-heat circuit for rapid response at low ambient temperatures
US6897581B2 (en) * 2002-10-04 2005-05-24 Honeywell International Inc. High speed generator with the main rotor housed inside the shaft
US20060059943A1 (en) * 2004-09-22 2006-03-23 Merritt Brent J Air cycle machine integrated rotor and shaft
US7084522B2 (en) * 2001-01-19 2006-08-01 Aloys Wobben Wind energy unit comprising a hollow shaft for rotor hub and generator
US7131275B2 (en) * 2002-12-06 2006-11-07 Hamilton Sundstrand Gas turbine engine system having an electric starter motor with integral clutch
US20070090719A1 (en) * 2005-10-26 2007-04-26 Hamilton Sundstrand Corporation Generator synchronization system
WO2007096493A1 (fr) * 2006-02-27 2007-08-30 Hispano Suiza Integration d'un module demarreur/generateur dans une boite de transmission d'une turbine a gaz
US20090324396A1 (en) * 2008-04-23 2009-12-31 Hamilton Sundstrand Corporation Accessory gearbox system with compressor driven seal air supply

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4545470A (en) * 1983-12-14 1985-10-08 Sundstrand Corporation Narrow tolerance range slip clutch
US4997072A (en) * 1989-08-21 1991-03-05 Sundstrand Corporation Rotating concentric shaft disconnect actuating mechanism for an integrated drive generator
US5023789A (en) * 1990-06-04 1991-06-11 Sundstrand Corporation Temperature compensated closed loop control of a hydraulically controlled clutch and APU starting system
US5029689A (en) * 1990-09-10 1991-07-09 Sundstrand Corporation Spring clutch assembly for use in a transmission
US5174109A (en) * 1990-10-25 1992-12-29 Sundstrand Corporation Clutch to disconnect loads during turbine start-up
US5325009A (en) * 1993-05-07 1994-06-28 Sundstrand Corporation Rotor shaft with integral wedge retainers for core of a two-pole generator
US5562190A (en) * 1995-06-07 1996-10-08 Sundstrand Corporation Hydraulic clutch control system with fluid coupling pre-heat circuit for rapid response at low ambient temperatures
US7084522B2 (en) * 2001-01-19 2006-08-01 Aloys Wobben Wind energy unit comprising a hollow shaft for rotor hub and generator
US6897581B2 (en) * 2002-10-04 2005-05-24 Honeywell International Inc. High speed generator with the main rotor housed inside the shaft
US7131275B2 (en) * 2002-12-06 2006-11-07 Hamilton Sundstrand Gas turbine engine system having an electric starter motor with integral clutch
US20060059943A1 (en) * 2004-09-22 2006-03-23 Merritt Brent J Air cycle machine integrated rotor and shaft
US20070090719A1 (en) * 2005-10-26 2007-04-26 Hamilton Sundstrand Corporation Generator synchronization system
WO2007096493A1 (fr) * 2006-02-27 2007-08-30 Hispano Suiza Integration d'un module demarreur/generateur dans une boite de transmission d'une turbine a gaz
US20090324396A1 (en) * 2008-04-23 2009-12-31 Hamilton Sundstrand Corporation Accessory gearbox system with compressor driven seal air supply

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9758238B2 (en) 2012-09-05 2017-09-12 Turbomeca Accessory drive gearbox for controlling the flaps of an aircraft
US11134585B2 (en) * 2019-05-31 2021-09-28 Hamilton Sundstrand Corporation Aircraft power electronic unit and method of cooling

Also Published As

Publication number Publication date
CN102148549A (zh) 2011-08-10
US20110148233A1 (en) 2011-06-23
EP2337189A2 (de) 2011-06-22
US8432079B2 (en) 2013-04-30
EP2337188A2 (de) 2011-06-22
CN102104293A (zh) 2011-06-22
CN102104294B (zh) 2014-01-29
EP2337189A3 (de) 2014-08-13
EP2337188B1 (de) 2016-08-10
US20110148234A1 (en) 2011-06-23
CN102104294A (zh) 2011-06-22
US8796892B2 (en) 2014-08-05
EP2337189B1 (de) 2016-08-10
EP2337190A2 (de) 2011-06-22
EP2337188A3 (de) 2014-08-13

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HAMILTON SUNDSTRAND CORPORATION, CONNECTICUT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LEMMERS, GLENN C., JR.;BEHLING, DAVID S.;WELCH, TIMOTHY R.;AND OTHERS;SIGNING DATES FROM 20100524 TO 20100525;REEL/FRAME:024439/0781

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION