FR2248741A5 - Variable speed drive set - has electro-magnetic power brake to adjust speed - Google Patents

Variable speed drive set - has electro-magnetic power brake to adjust speed

Info

Publication number
FR2248741A5
FR2248741A5 FR7337646A FR7337646A FR2248741A5 FR 2248741 A5 FR2248741 A5 FR 2248741A5 FR 7337646 A FR7337646 A FR 7337646A FR 7337646 A FR7337646 A FR 7337646A FR 2248741 A5 FR2248741 A5 FR 2248741A5
Authority
FR
France
Prior art keywords
variable speed
electro
unit
speed
magnetic power
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
FR7337646A
Other languages
French (fr)
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.)
STIEN GEORGES FR
Original Assignee
STIEN GEORGES FR
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 STIEN GEORGES FR filed Critical STIEN GEORGES FR
Priority to FR7337646A priority Critical patent/FR2248741A5/en
Application granted granted Critical
Publication of FR2248741A5 publication Critical patent/FR2248741A5/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
    • F16D57/002—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders comprising a medium with electrically or magnetically controlled internal friction, e.g. electrorheological fluid, magnetic powder
    • 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
    • F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
    • F16D37/02—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive the particles being magnetisable
    • 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
    • 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
    • F16D37/00—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
    • F16D2037/002—Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive characterised by a single substantially axial gap in which the fluid or medium consisting of small particles is arranged

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The drive shaft of a constant velocity asynchronous motor drives a large diameter hub (05), equipped with cooling fins, in the variable speed unit. In this hub is pressed an electromagnetic powder brake unit (08), and the variable speed output shaft (09) is fitted into the central, independently rotating, portion of this unit. By adjusting the excitation current to the brake, the speed of the output shaft relative to the motor can be varied. The rotor is manipulated by a number of Reed contacts, which consist of magnetic contacts protected by a glas tubular sleeve to provide a non-oxidising protective environment.
FR7337646A 1973-10-17 1973-10-17 Variable speed drive set - has electro-magnetic power brake to adjust speed Expired FR2248741A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7337646A FR2248741A5 (en) 1973-10-17 1973-10-17 Variable speed drive set - has electro-magnetic power brake to adjust speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7337646A FR2248741A5 (en) 1973-10-17 1973-10-17 Variable speed drive set - has electro-magnetic power brake to adjust speed

Publications (1)

Publication Number Publication Date
FR2248741A5 true FR2248741A5 (en) 1975-05-16

Family

ID=9126764

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7337646A Expired FR2248741A5 (en) 1973-10-17 1973-10-17 Variable speed drive set - has electro-magnetic power brake to adjust speed

Country Status (1)

Country Link
FR (1) FR2248741A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1248008A1 (en) * 2001-04-04 2002-10-09 Delphi Technologies, Inc. Magnetorheological fluid stopper at electric motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1248008A1 (en) * 2001-04-04 2002-10-09 Delphi Technologies, Inc. Magnetorheological fluid stopper at electric motor
US6619444B2 (en) 2001-04-04 2003-09-16 Delphi Technologies, Inc. Magnetorheological fluid stopper at electric motor

Similar Documents

Publication Publication Date Title
WO1995027327A1 (en) Self-adjusting airgap motor/generator for flywheel system
IT1176982B (en) Aircraft propeller drive and revolutions control system
JPS5775545A (en) Rotary electric machine
FR2248741A5 (en) Variable speed drive set - has electro-magnetic power brake to adjust speed
ES464857A1 (en) Electric coupling and brake motor
GB1261894A (en) Magnetic induction couplings
ES8104672A1 (en) Rotary force generator
JPS533604A (en) Electric motor of duplicated rotor type
FR2297336A1 (en) Cooling tower fan unit - has faster contrarotating fan above and coaxial to larger main fan
JPS564127A (en) Electromagnetic drive shutter
JPS54108161A (en) Magnetic fluid seal
JPS5570972A (en) Magnetic disc unit
JPS5749093A (en) Electric fan
GB1287145A (en) Rotary magnetic machine
JPS51111548A (en) Magnetic-powder type connector
FR2275051A1 (en) Motor with electromagnetic braking - electromagnets separate braking surfaces, removal of power allows springs to operate brakes
SE7704863L (en) STOPPING DEVICE FOR AIR-POWERED CENTER JOINT
GB1297409A (en)
JPS5459548A (en) Motor
JPS57138860A (en) Magnetic force generator
JPS56123773A (en) Automatic power generating unit
FR2231143A1 (en) Motor generator set which gives mechanical output - has annular solid rotor mounted between two fixed windings
FR2290073A1 (en) Electromagnetic Foucault current brack - has homopolar rotor, liq cooled braking element and pulse generator
JPS57156660A (en) Low inertia variable speed induction motor
JPS566362A (en) X-ray tube device

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse