IT1080083B - MAGNETICALLY OPERATED CLUTCH OR FRICTION BRAKE - Google Patents
MAGNETICALLY OPERATED CLUTCH OR FRICTION BRAKEInfo
- Publication number
- IT1080083B IT1080083B IT5055677A IT5055677A IT1080083B IT 1080083 B IT1080083 B IT 1080083B IT 5055677 A IT5055677 A IT 5055677A IT 5055677 A IT5055677 A IT 5055677A IT 1080083 B IT1080083 B IT 1080083B
- Authority
- IT
- Italy
- Prior art keywords
- clutch
- electromagnet
- hub
- nonmagnetic
- coil
- Prior art date
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
- F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/14—Safety means against, or active at, failure of coolant-pumps drives, e.g. shutting engine down; Means for indicating functioning of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P7/162—Controlling of coolant flow the coolant being liquid by thermostatic control by cutting in and out of pumps
-
- 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
- F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
- F16D27/004—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with permanent magnets combined with electromagnets
-
- 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
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc 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
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
- F16D2121/22—Electric or magnetic using electromagnets for releasing a normally applied brake
-
- 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
- F16D2129/00—Type of operation source for auxiliary mechanisms
- F16D2129/06—Electric or magnetic
- F16D2129/065—Permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Braking Arrangements (AREA)
Abstract
A fixed part of a clutch (1) comprises a magnet body (2), a permanent magnet (3), a coil of an electromagnet (5) and a nonmagnetic insert (4). An armature (19) comprises an armature disc (12) which is made up of two concentric rings and is connected firmly in terms of rotation to a driver (18) via an annular spring (11). Between the fixed clutch part (2, 3, 4, 5) and the armature (19) there is an axially fixed but rotatable clutch disc (15) which has a deflector (8), a nonmagnetic intermediate layer (9) with an insert (10) and a hub (17). A nonmagnetic intermediate layer (16) is arranged in the hub (17), concentrically to the axis of the hub. In the deenergised condition of the coil of the electromagnet (5), the magnetic flux lines of the permanent magnet (3) follow a path (26). In the excited condition of the coil, the magnetic flux lines follow a path (22) while the flux lines of the electromagnet (5) follow a path (21). The nonmagnetic intermediate layer (16) and the nonmagnetic insert (4) reduce the magnetic leakage flux to a minimum. A fail-safe clutch or brake with a high torque and a short response time and with small dimensions is thus created. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762638944 DE2638944A1 (en) | 1976-08-28 | 1976-08-28 | MAGNETIC ACTUATED FRICTION CLUTCH OR BRAKE |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1080083B true IT1080083B (en) | 1985-05-16 |
Family
ID=5986670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT5055677A IT1080083B (en) | 1976-08-28 | 1977-08-03 | MAGNETICALLY OPERATED CLUTCH OR FRICTION BRAKE |
Country Status (7)
Country | Link |
---|---|
CH (1) | CH618243A5 (en) |
DE (1) | DE2638944A1 (en) |
ES (1) | ES460851A1 (en) |
FR (1) | FR2363027A1 (en) |
GB (1) | GB1586180A (en) |
IT (1) | IT1080083B (en) |
SE (1) | SE431781B (en) |
Families Citing this family (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3224759A1 (en) * | 1982-07-02 | 1984-01-05 | Maschinenfabrik Stromag Gmbh, 4750 Unna | Curvic coupling with electromagnetic actuation |
US4664238A (en) * | 1984-11-08 | 1987-05-12 | Mitsubishi Denki Kabushiki Kaisha | Electromagnetic coupling device |
DE3501680A1 (en) * | 1985-01-19 | 1986-07-24 | Walter Dipl.-Ing. 4030 Ratingen Krome | MAGNETICALLY OPERATED FRICTION BRAKE OR CLUTCH |
WO1986005850A1 (en) * | 1985-03-30 | 1986-10-09 | Zahnradfabrik Friedrichshafen Ag | Electromagnetic coupling or brakes with electrically changeable holding pewer |
DE3513494C2 (en) * | 1985-04-16 | 1987-03-12 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Magnetic brake |
AU601209B2 (en) * | 1986-09-05 | 1990-09-06 | Sanden Corporation | Electromagnetic clutch having high torque transfer |
GB9302623D0 (en) * | 1993-02-10 | 1993-03-24 | Ti Matrix Eng Ltd | Brake device |
ES2113260B1 (en) * | 1993-07-19 | 1998-12-16 | Fithtel & Sachs Ag | FRICTION CLUTCH, IN PARTICULAR FOR AUTOMOBILE VEHICLES. |
DE4416264C2 (en) * | 1993-07-19 | 1997-10-23 | Fichtel & Sachs Ag | Friction clutch, in particular for motor vehicles |
DE4434328A1 (en) * | 1994-09-26 | 1996-03-28 | Linde Ag | Industrial truck with a storage brake |
DE19727914A1 (en) * | 1997-07-01 | 1999-01-07 | Bayerische Motoren Werke Ag | Slip clutch for a drivable unit, in particular an auxiliary unit of an internal combustion engine |
DE19856069A1 (en) * | 1998-12-04 | 2000-06-15 | Zahnradfabrik Friedrichshafen | Electromagnetically actuated single surface coupling or brake has thin lamella multiply slightly corrugated in peripheral direction arranged between first and second frictional surfaces |
DE19920543A1 (en) * | 1999-05-05 | 2000-12-07 | Zahnradfabrik Friedrichshafen | Electromagnetically actuated single surface coupling or brake reduces magnetic field of permanent magnet with current pulse in magnetic coil so annular spring opens coupling or brake |
DE19923393C1 (en) * | 1999-05-21 | 2001-01-18 | Dimatec Magnet U Antriebstechn | Electromagnetically operated friction brake |
DE19951630B4 (en) * | 1999-10-26 | 2004-07-01 | Zf Friedrichshafen Ag | Electromagnetically actuated, slip ringless single-face friction clutch |
EP1162416A1 (en) * | 2000-06-05 | 2001-12-12 | Fuji Injector Corporation | Mechanism for actuating a rotary valve |
DE10046903C2 (en) * | 2000-09-21 | 2003-03-06 | Siemens Ag | Electromagnetic brake for an electric drive |
KR100393802B1 (en) * | 2001-06-27 | 2003-08-02 | 엘지전자 주식회사 | Repulsion clutch apparatus for washing machine |
DE10204947A1 (en) * | 2002-02-07 | 2003-08-21 | Zahnradfabrik Friedrichshafen | Electromagnetically actuated friction clutch or brake |
DE10225580A1 (en) * | 2002-06-10 | 2003-12-18 | Valeo Sicherheitssysteme Gmbh | Electromagnetic frictionally engaged clutch for motor vehicle presses anchor disk against friction lining of rotor with force that is big enough for vehicle door to be kept in position, which is taken up when clutch is switched off |
ITMI20041813A1 (en) * | 2004-09-22 | 2004-12-22 | Foussianes Nicholas B | MOTOR COOLING FAN MOTOR TRANSMISSION DEVICE. |
DE502005003790D1 (en) | 2005-02-15 | 2008-05-29 | Kendrion Binder Magnete Gmbh | ELECTROMAGNETIC BRAKE WITH A PERMANENT MAGNET |
US7493996B2 (en) | 2005-06-10 | 2009-02-24 | Warner Electric Technology Llc | Rotational coupling device |
US7975818B2 (en) | 2005-06-10 | 2011-07-12 | Warner Electric Technology Llc | Rotational coupling device |
US7732959B2 (en) | 2005-06-10 | 2010-06-08 | Warner Electric Technology, Llc | Rotational coupling device |
DE102005036418A1 (en) * | 2005-07-29 | 2007-02-08 | Linnig Trucktec Gmbh | Electromagnetically actuated friction disc clutch and rotor for such a clutch |
US7527134B2 (en) | 2006-04-03 | 2009-05-05 | Warner Electric Technology Llc | Rotational coupling device |
US7717241B2 (en) | 2006-05-01 | 2010-05-18 | American Precision Industries, Inc. | Braking or clutching device |
DE102008054636A1 (en) | 2008-12-15 | 2010-06-17 | Zf Friedrichshafen Ag | Electromagnetically actuated brake |
EP2299085B1 (en) * | 2009-09-10 | 2017-08-02 | Pierburg Pump Technology GmbH | Coolant pump |
CN101900174A (en) * | 2010-07-19 | 2010-12-01 | 无锡市华灵电机开关有限公司 | Permanent magnet safe brake with high friction coefficient |
CN101968090A (en) * | 2010-09-06 | 2011-02-09 | 无锡瑞茂光电科技有限公司 | Electromagnetic brake with permanent magnet |
CN102235452A (en) * | 2011-06-21 | 2011-11-09 | 成都瑞迪机械实业有限公司 | Permanent magnet powerless magnetic brake |
US8814744B2 (en) | 2012-05-18 | 2014-08-26 | Gm Global Technology Operations, Llc | Electromechanical clutch and transmission |
WO2014198326A1 (en) * | 2013-06-14 | 2014-12-18 | Pierburg Pump Technology Gmbh | Coolant pump with plastic bonded magnet |
CN105090295B (en) * | 2014-05-19 | 2018-07-06 | 三菱电机株式会社 | Electro-magnetic braking device and the lift appliance using the electro-magnetic braking device |
DE102014110117B3 (en) * | 2014-07-18 | 2015-09-24 | Maschinenfabrik Mönninghoff Gmbh & Co. Kg | clutch |
CN105605120A (en) * | 2016-03-14 | 2016-05-25 | 兰州中天汇科电子科技有限公司 | Permanent magnet electromagnetic clutch |
CN107676411A (en) * | 2017-10-19 | 2018-02-09 | 兰州万里航空机电有限责任公司 | A kind of electromagnetic brake for aero dynamo |
DE102020103661A1 (en) | 2020-02-12 | 2021-08-12 | Wittenstein Se | Holding brake for a drive |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU459523B2 (en) * | 1972-08-07 | 1975-03-27 | Gkn Transmissions Limited | Improvements relating to clutches |
-
1976
- 1976-08-28 DE DE19762638944 patent/DE2638944A1/en active Pending
-
1977
- 1977-07-12 CH CH859277A patent/CH618243A5/en not_active IP Right Cessation
- 1977-07-19 ES ES460851A patent/ES460851A1/en not_active Expired
- 1977-08-03 IT IT5055677A patent/IT1080083B/en active
- 1977-08-17 FR FR7725101A patent/FR2363027A1/en active Granted
- 1977-08-17 GB GB3453277A patent/GB1586180A/en not_active Expired
- 1977-08-26 SE SE7709624A patent/SE431781B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE2638944A1 (en) | 1978-03-02 |
SE431781B (en) | 1984-02-27 |
ES460851A1 (en) | 1978-04-16 |
SE7709624L (en) | 1978-03-01 |
FR2363027A1 (en) | 1978-03-24 |
CH618243A5 (en) | 1980-07-15 |
FR2363027B1 (en) | 1984-04-27 |
GB1586180A (en) | 1981-03-18 |
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