GB2001713A - Clutch with coolant flow control - Google Patents

Clutch with coolant flow control

Info

Publication number
GB2001713A
GB2001713A GB787828651A GB7828651A GB2001713A GB 2001713 A GB2001713 A GB 2001713A GB 787828651 A GB787828651 A GB 787828651A GB 7828651 A GB7828651 A GB 7828651A GB 2001713 A GB2001713 A GB 2001713A
Authority
GB
United Kingdom
Prior art keywords
clutch
coolant flow
control pressure
members
needed
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.)
Granted
Application number
GB787828651A
Other versions
GB2001713B (en
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.)
Sundstrand Corp
Original Assignee
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 Sundstrand Corp filed Critical Sundstrand Corp
Publication of GB2001713A publication Critical patent/GB2001713A/en
Application granted granted Critical
Publication of GB2001713B publication Critical patent/GB2001713B/en
Expired 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D25/00—Fluid-actuated clutches
    • F16D25/12—Details not specific to one of the before-mentioned types
    • F16D25/123—Details not specific to one of the before-mentioned types in view of cooling and lubrication
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/72—Features relating to cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

In a clutch with coolant flow over cooperating clutch members 20, means 55 are provided for shutting off the coolant flow during the initial stage of clutch engagement and initiating coolant flow when the actuating force on the clutch members is at a higher value. This reduces the drag torque of the clutch and the delay in operation. Preferably the clutch is hydraulically actuated, with a predetermined hydraulic control pressure being needed to bring the clutch plates into clutching engagement and a greater hydraulic control pressure being needed to open one or more coolant flow passages 50 to the clutch members. The same control pressure preferably acts both on the clutch actuator 25 and on a piston 60 controlling a coolant flow control valve 55 within a clutch drum. Such a clutch is of use in a jet engine start system. <IMAGE>
GB787828651A 1977-07-28 1978-07-03 Clutch with coolant flow control Expired GB2001713B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81967977A 1977-07-28 1977-07-28

Publications (2)

Publication Number Publication Date
GB2001713A true GB2001713A (en) 1979-02-07
GB2001713B GB2001713B (en) 1982-05-12

Family

ID=25228758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB787828651A Expired GB2001713B (en) 1977-07-28 1978-07-03 Clutch with coolant flow control

Country Status (8)

Country Link
JP (1) JPS5433936A (en)
CA (1) CA1095844A (en)
DE (1) DE2829782A1 (en)
FR (1) FR2398928B1 (en)
GB (1) GB2001713B (en)
IL (1) IL54968A (en)
SG (1) SG57482G (en)
SU (1) SU786931A3 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081934A2 (en) * 1981-12-10 1983-06-22 Honda Giken Kogyo Kabushiki Kaisha Belt type continuous reduction gear mechanism
WO1985001332A1 (en) * 1983-09-15 1985-03-28 Zahnradfabrik Friedrichshafen Ag Lamella coupling
US4629050A (en) * 1983-12-27 1986-12-16 Valeo Multidisk clutch featuring improved lubrication and cooling
WO1987005084A1 (en) * 1986-02-14 1987-08-27 Zahnradfabrik Friedrichshafen Ag Forced cooling device for friction brakes or clutches
EP0307389A1 (en) * 1987-09-10 1989-03-15 STEYR-DAIMLER-PUCH Aktiengesellschaft Clutch mechanism for a power change-speed gearing
DE10230183A1 (en) * 2002-07-05 2004-01-22 Zf Friedrichshafen Ag Method for supplying cooling fluid for multi-plate clutches and brakes in automatic transmissions and device for supplying cooling fluid
US7694794B2 (en) * 2007-05-29 2010-04-13 Deere & Company PTO clutch with lubrication oil shut-off valve and integrated relief valve
CN102619895A (en) * 2012-04-18 2012-08-01 重庆威马农业机械有限公司 Normally-open clutch of micro-cultivator
CN106979254A (en) * 2016-01-18 2017-07-25 迪尔公司 Disk group cooling device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT386870B (en) * 1984-05-18 1988-10-25 Steyr Daimler Puch Ag Pressure-medium-operable clutch with coolant-supplied friction bodies, in particular discs
US4718308A (en) * 1985-03-29 1988-01-12 Borg-Warner Automotive, Inc. Hydraulic control system for continuously variable transmission
JPH0666770B2 (en) * 1986-12-19 1994-08-24 三洋電機株式会社 Clock signal reproduction circuit
JPH01295541A (en) * 1988-01-08 1989-11-29 Japan Radio Co Ltd Waveform shaping and identifying circuit
JPH02101836A (en) * 1988-10-11 1990-04-13 Kokusai Electric Co Ltd High speed synchronizing circuit
DE102010039171A1 (en) * 2010-08-11 2012-02-16 Zf Friedrichshafen Ag Clutch, particularly multi-plate clutch for automatic transmission of motor vehicle, has switchable cooling unit e.g. wet running switching or starting element, where adjustable medium is arranged for cooling oil supply control within shaft
JP6733574B2 (en) * 2017-02-20 2020-08-05 トヨタ自動車株式会社 Hydraulic control device for engagement mechanism

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3105582A (en) * 1961-03-13 1963-10-01 Twin Disc Clutch Co Oil pressure actuated clutch
US3301367A (en) * 1965-02-11 1967-01-31 Twin Disc Clutch Co Double hydraulic operated clutch having low pressure fluid plate cooling means
US4004670A (en) * 1975-07-09 1977-01-25 Caterpillar Tractor Co. Self-modulated clutch with drag-reduction valve

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0081934A2 (en) * 1981-12-10 1983-06-22 Honda Giken Kogyo Kabushiki Kaisha Belt type continuous reduction gear mechanism
EP0081934A3 (en) * 1981-12-10 1983-10-05 Honda Giken Kogyo Kabushiki Kaisha Belt type continuous reduction gear mechanism
EP0184675A2 (en) * 1981-12-10 1986-06-18 Honda Giken Kogyo Kabushiki Kaisha Belt type continuous reduction gear mechanism
EP0184675A3 (en) * 1981-12-10 1987-05-27 Honda Giken Kogyo Kabushiki Kaisha Belt type continuous reduction gear mechanism
WO1985001332A1 (en) * 1983-09-15 1985-03-28 Zahnradfabrik Friedrichshafen Ag Lamella coupling
US4629050A (en) * 1983-12-27 1986-12-16 Valeo Multidisk clutch featuring improved lubrication and cooling
WO1987005084A1 (en) * 1986-02-14 1987-08-27 Zahnradfabrik Friedrichshafen Ag Forced cooling device for friction brakes or clutches
EP0307389A1 (en) * 1987-09-10 1989-03-15 STEYR-DAIMLER-PUCH Aktiengesellschaft Clutch mechanism for a power change-speed gearing
DE10230183A1 (en) * 2002-07-05 2004-01-22 Zf Friedrichshafen Ag Method for supplying cooling fluid for multi-plate clutches and brakes in automatic transmissions and device for supplying cooling fluid
US6907973B2 (en) 2002-07-05 2005-06-21 Zf Freidrichshafen Ag Method and device for coolant oil feeding to a multiple-disc shifting element of an automatic transmission
DE10230183B4 (en) * 2002-07-05 2013-06-06 Zf Friedrichshafen Ag Method for cooling fluid supply for multi-plate clutches and brakes in automatic transmissions and device for cooling fluid supply
US7694794B2 (en) * 2007-05-29 2010-04-13 Deere & Company PTO clutch with lubrication oil shut-off valve and integrated relief valve
EP1998061A3 (en) * 2007-05-29 2013-05-15 Deere & Company PTO Clutch
CN102619895A (en) * 2012-04-18 2012-08-01 重庆威马农业机械有限公司 Normally-open clutch of micro-cultivator
CN102619895B (en) * 2012-04-18 2013-09-18 重庆威马农业机械有限公司 Normally-open clutch of micro-cultivator
CN106979254A (en) * 2016-01-18 2017-07-25 迪尔公司 Disk group cooling device
CN106979254B (en) * 2016-01-18 2021-07-06 迪尔公司 Disk pack cooling arrangement and transmission assembly

Also Published As

Publication number Publication date
SG57482G (en) 1983-09-02
FR2398928B1 (en) 1986-05-23
GB2001713B (en) 1982-05-12
JPS5433936A (en) 1979-03-13
FR2398928A1 (en) 1979-02-23
IL54968A (en) 1980-11-30
IL54968A0 (en) 1978-08-31
CA1095844A (en) 1981-02-17
DE2829782A1 (en) 1979-02-15
SU786931A3 (en) 1980-12-07

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee