GB712958A - Improvements in or relating to hydraulic brakes, particularly for electric motors - Google Patents

Improvements in or relating to hydraulic brakes, particularly for electric motors

Info

Publication number
GB712958A
GB712958A GB20568/52A GB2056852A GB712958A GB 712958 A GB712958 A GB 712958A GB 20568/52 A GB20568/52 A GB 20568/52A GB 2056852 A GB2056852 A GB 2056852A GB 712958 A GB712958 A GB 712958A
Authority
GB
United Kingdom
Prior art keywords
sheath
electric motor
liquid
aug
motor
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
GB20568/52A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB712958A publication Critical patent/GB712958A/en
Expired legal-status Critical Current

Links

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
    • H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
    • 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
    • F16D57/02—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders with blades or like members braked by the fluid
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

712,958. Fluid friction brakes. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 15, 1952 [Aug. 18, 1951], No. 20568/52. Class 103(1) A brake having as its object the substantially instantaneous stoppage of an electric motor comprises a vaned rotor 1 rotated within a liquid filled casing 4 by a toothed wheel 10 on a shaft 9 driven by the motor. The rotor 1 turns within a cylindrical sheath 6, also immersed in the liquid, which is closed at one end by its tooth gear end 2 and at the other end by the casing 4. The sheath 6 has cut through it slits 7 which are of such a size that when the electric motor is running at its normal operational speed, substantially all the water is driven out of the sheath 6, air entering through a pipe 8. Under these conditions the device absorbs very little energy. As soon as the speed of the electric motor falls slightly liquid re-enters the sheath and by its resistance rapidly brakes the motor. Silicone oil is given as suitable braking fluid.
GB20568/52A 1951-08-18 1952-08-15 Improvements in or relating to hydraulic brakes, particularly for electric motors Expired GB712958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL712958X 1951-08-18

Publications (1)

Publication Number Publication Date
GB712958A true GB712958A (en) 1954-08-04

Family

ID=19814863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20568/52A Expired GB712958A (en) 1951-08-18 1952-08-15 Improvements in or relating to hydraulic brakes, particularly for electric motors

Country Status (1)

Country Link
GB (1) GB712958A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220135007A1 (en) * 2019-03-01 2022-05-05 Jheeco E-Drive Ag Drive device for a vehicle, vehicle and method for braking a drive device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220135007A1 (en) * 2019-03-01 2022-05-05 Jheeco E-Drive Ag Drive device for a vehicle, vehicle and method for braking a drive device

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