GB1138622A - Improvements relating to hydrodynamic brakes - Google Patents

Improvements relating to hydrodynamic brakes

Info

Publication number
GB1138622A
GB1138622A GB22283/65A GB2228365A GB1138622A GB 1138622 A GB1138622 A GB 1138622A GB 22283/65 A GB22283/65 A GB 22283/65A GB 2228365 A GB2228365 A GB 2228365A GB 1138622 A GB1138622 A GB 1138622A
Authority
GB
United Kingdom
Prior art keywords
shutters
casing
rack
moved
hydraulic fluid
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.)
Expired
Application number
GB22283/65A
Inventor
William Griffiths Westwell
Roger Harvey Slee
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.)
Perkins Ltd
Original Assignee
Perkins Engines Ltd
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 Perkins Engines Ltd filed Critical Perkins Engines Ltd
Priority to GB22283/65A priority Critical patent/GB1138622A/en
Priority to DE19661600024 priority patent/DE1600024A1/en
Priority to US552234A priority patent/US3399747A/en
Publication of GB1138622A publication Critical patent/GB1138622A/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
    • F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
    • F16D57/04—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders with blades causing a directed flow, e.g. Föttinger type
    • 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
    • F16D67/00—Combinations of couplings and brakes; Combinations of clutches and brakes
    • F16D67/02—Clutch-brake combinations
    • F16D67/04—Clutch-brake combinations fluid actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hydraulic Motors (AREA)
  • Actuator (AREA)

Abstract

1,138,622. Hydrodynamic brakes. PERKINS ENGINES Ltd. 27 April, 1966 [26 May, 1965], No. 22283/65. Heading F2E. A hydrodynamic brake comprising a twopart easing 12A and 12B forming a stator having pockets or vanes 11A and housing a rotor 10 having coacting pockets or vanes 11B, incorporates a plurality of shutter members 16 pivoted at one end on the easing between the stator and rotor to form an adjustable iris, said shutters being moved to the open position, Fig. 2B (not shown), when hydraulic fluid is admitted to the casing to actuate the brake and being moved to the closed position, Fig. 2A (not shown), to reduce windage losses when the casing is empty of hydraulic fluid. As shown, the shutters are formed by arcuate metal plates, each having a pin 17 engaging in an associated slot 19 of a rotatable cam ring 18 to define an " iris "-type shutter. The cam ring is rotated by a rack 21 engaging a ring gear segment 20, said rack being moved to the left by hydraulic, pneumatic or mechanical control means (not shown) connected thereto by a control rod 21C to open the shutters. A control rod extension 21B is coupled to a control valve 22 so that said rack movement permits entry of fluid into the casing. Movement of the rack to the right to effect closure of both the shutters and the control valve supply is effected by a spring 21A. The shutters can only be moved to their closed position when there is no hydraulic fluid in the flow path and hydraulic fluid cannot be admitted to the casing when the shutters are closed; said pins extending through co-operating slots (52) in the free ends of said shutters. The shutters are urged towards a closed position during brake release by a spring (57) acting between the other arms of the bell-crank levers but are maintained in the open position shown during brake application by a pair of hydraulic rams connected to a control valve (58) which also controls the admission of fluid to the machine through a supply valve (22A).
GB22283/65A 1965-05-26 1965-05-26 Improvements relating to hydrodynamic brakes Expired GB1138622A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB22283/65A GB1138622A (en) 1965-05-26 1965-05-26 Improvements relating to hydrodynamic brakes
DE19661600024 DE1600024A1 (en) 1965-05-26 1966-05-18 Hydraulic machine
US552234A US3399747A (en) 1965-05-26 1966-05-23 Hydrodynamic fluid brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22283/65A GB1138622A (en) 1965-05-26 1965-05-26 Improvements relating to hydrodynamic brakes

Publications (1)

Publication Number Publication Date
GB1138622A true GB1138622A (en) 1969-01-01

Family

ID=10176871

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22283/65A Expired GB1138622A (en) 1965-05-26 1965-05-26 Improvements relating to hydrodynamic brakes

Country Status (3)

Country Link
US (1) US3399747A (en)
DE (1) DE1600024A1 (en)
GB (1) GB1138622A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003661A1 (en) * 1989-09-08 1991-03-21 Zahnradfabrik Friedrichshafen Ag Device for reducing the idling losses in hydrodynamic brakes

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122668A (en) * 1976-07-22 1978-10-31 General Motors Corporation Iris control for gas turbine engine air brake
DE2927582C2 (en) * 1979-07-07 1982-09-09 Voith Getriebe Kg, 7920 Heidenheim Hydrodynamic brake
US4641808A (en) * 1985-02-22 1987-02-10 Flower Wallace C Dynamic vibration attenuator utilizing inertial fluid
DE19647064B4 (en) * 1996-11-14 2005-10-20 Zahnradfabrik Friedrichshafen Hydrodynamic brake
DE19851951A1 (en) * 1998-11-11 2000-05-18 Zahnradfabrik Friedrichshafen Hydrodynamic brake
DE102007032935A1 (en) * 2007-07-14 2009-01-15 Zf Friedrichshafen Ag Aperture arrangement in particular for a hydrodynamic brake
CN106855089A (en) * 2017-01-05 2017-06-16 宁波华盛联合制动科技有限公司 One kind is used for Retarder subshell body device
DE102018112305A1 (en) * 2018-05-23 2019-11-28 Voith Patent Gmbh Ventilation panel for a hydrodynamic machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1595657A (en) * 1922-11-03 1926-08-10 Patrick J Halloran Variable air inlet for pressure air-cooling systems
US2649272A (en) * 1950-03-31 1953-08-18 Robert C Barbato Iris type valve construction
US3023581A (en) * 1958-02-17 1962-03-06 American Radiator & Standard Fluid coupling
GB960671A (en) * 1962-07-09 1964-06-10 Voith Gmbh J M Improvements relating to hydrodynamic brakes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003661A1 (en) * 1989-09-08 1991-03-21 Zahnradfabrik Friedrichshafen Ag Device for reducing the idling losses in hydrodynamic brakes
US5228544A (en) * 1989-09-08 1993-07-20 Zahnradfabrik Friedrichshafen Ag Device for reducing the idling losses in hydrodynamic brakes

Also Published As

Publication number Publication date
DE1600024A1 (en) 1970-01-22
US3399747A (en) 1968-09-03

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