WO1995018319A1 - Lubrication system for a planetary gear train - Google Patents

Lubrication system for a planetary gear train Download PDF

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Publication number
WO1995018319A1
WO1995018319A1 PCT/US1994/014811 US9414811W WO9518319A1 WO 1995018319 A1 WO1995018319 A1 WO 1995018319A1 US 9414811 W US9414811 W US 9414811W WO 9518319 A1 WO9518319 A1 WO 9518319A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
gear
gears
meshes
planet gears
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.)
Ceased
Application number
PCT/US1994/014811
Other languages
French (fr)
Inventor
Albert H. Mckibbin
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.)
RTX Corp
Original Assignee
United Technologies 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 United Technologies Corp filed Critical United Technologies Corp
Priority to JP51814795A priority Critical patent/JP3649444B2/en
Priority to EP95906083A priority patent/EP0737281B1/en
Priority to DE69409129T priority patent/DE69409129T2/en
Publication of WO1995018319A1 publication Critical patent/WO1995018319A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0482—Gearings with gears having orbital motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H2001/289—Toothed gearings for conveying rotary motion with gears having orbital motion comprising two or more coaxial and identical sets of orbital gears, e.g. for distributing torque between the coaxial sets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
    • F16H57/0426—Means for guiding lubricant into an axial channel of a shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0479—Gears or bearings on planet carriers
    • 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
    • Y10T74/19991—Lubrication
    • Y10T74/19995—Teeth

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

A lubrication system for a planetary gear train (6) includes oil spray bars (32) intermediate each pair of planet gears (10). Oil exits the meshes between the sun gear (8) and the planet gears (10) and between the planet gears (10) and the ring gear (18) with substantial tangential velocity. The expelled oil enters and oil discharge passage (62) in an oil collection channel (56) adjacent to an axially outboard of the ring gear (18). In the preferred embodiment, herringbone gears are used and rotate so that oil within the gear meshes is pumped axially outward toward the channels. Interplanet baffles (80) and collection troughts (82) may also be used and are especially beneficial in an alternative embodiment which uses bihelical gears whose direction of rotation pumps oil within the gear meshes axially inward.
PCT/US1994/014811 1993-12-27 1994-12-20 Lubrication system for a planetary gear train Ceased WO1995018319A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP51814795A JP3649444B2 (en) 1993-12-27 1994-12-20 Lubrication system for planetary gear trains
EP95906083A EP0737281B1 (en) 1993-12-27 1994-12-20 Lubrication system for a planetary gear train
DE69409129T DE69409129T2 (en) 1993-12-27 1994-12-20 LUBRICATION SYSTEM FOR A PLANETARY GEARBOX

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/173,019 US5472383A (en) 1993-12-27 1993-12-27 Lubrication system for a planetary gear train
US173,019 1993-12-27

Publications (1)

Publication Number Publication Date
WO1995018319A1 true WO1995018319A1 (en) 1995-07-06

Family

ID=22630177

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1994/014811 Ceased WO1995018319A1 (en) 1993-12-27 1994-12-20 Lubrication system for a planetary gear train

Country Status (5)

Country Link
US (1) US5472383A (en)
EP (1) EP0737281B1 (en)
JP (1) JP3649444B2 (en)
DE (1) DE69409129T2 (en)
WO (1) WO1995018319A1 (en)

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BE1018974A3 (en) * 2009-10-19 2011-12-06 Hansen Transmissions Int PLANETARY GEAR SYSTEM AND PLANET BEARER, RING WHEEL AND SUN WHEEL FOR USE IN SUCH PLANETARY GEAR SYSTEM.
RU2495305C1 (en) * 2012-05-17 2013-10-10 Елена Николаевна Мендрух Gear wheel
WO2014123704A1 (en) 2013-02-06 2014-08-14 United Technologies Corporation Oil baffles in carrier for a fan drive gear system
RU2536432C1 (en) * 2013-07-02 2014-12-20 Денис Николаевич Мендрух Gear wheel
RU2535609C1 (en) * 2013-06-24 2014-12-20 Николай Викторович Мендрух Gear wheel
US20150316141A1 (en) * 2014-04-30 2015-11-05 Ge Avio S.R.L. Epicyclic transmission provided with a lubricating system
US9291255B2 (en) 2012-08-23 2016-03-22 Kawasaki Jukogyo Kabushiki Kaisha Planetary gear device
US10202902B2 (en) 2013-08-30 2019-02-12 United Technologies Corporation Geared architecture gas turbine engine with oil scavenge
EP3537006A1 (en) * 2018-01-25 2019-09-11 Rolls-Royce Deutschland Ltd & Co KG Planetary gear and aircraft engine with a planetary gear
US11067162B2 (en) 2013-08-30 2021-07-20 Raytheon Technologies Corporation Geared architecture gas turbine engine with oil scavenge

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Also Published As

Publication number Publication date
US5472383A (en) 1995-12-05
EP0737281B1 (en) 1998-03-18
DE69409129D1 (en) 1998-04-23
EP0737281A1 (en) 1996-10-16
DE69409129T2 (en) 1998-11-19
JPH09507284A (en) 1997-07-22
JP3649444B2 (en) 2005-05-18

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