US2582866A - Magnetoelectric machine - Google Patents

Magnetoelectric machine Download PDF

Info

Publication number
US2582866A
US2582866A US85966A US8596649A US2582866A US 2582866 A US2582866 A US 2582866A US 85966 A US85966 A US 85966A US 8596649 A US8596649 A US 8596649A US 2582866 A US2582866 A US 2582866A
Authority
US
United States
Prior art keywords
carrier
magnets
hub
magnetic
coil
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 - Lifetime
Application number
US85966A
Other languages
English (en)
Inventor
Harsch Paul
Rinkel Franz
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.)
NORIS ZUND LICHT AG FA
NORIS ZUND-LICHT AG Firma
Original Assignee
NORIS ZUND LICHT AG FA
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 NORIS ZUND LICHT AG FA filed Critical NORIS ZUND LICHT AG FA
Application granted granted Critical
Publication of US2582866A publication Critical patent/US2582866A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • H02K21/222—Flywheel magnetos
    • H02K21/225—Flywheel magnetos having I-shaped, E-shaped or similarly shaped armature cores
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/02—Gas-turbine plants characterised by the use of combustion products as the working fluid using exhaust-gas pressure in a pressure exchanger to compress combustion-air
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/279—Magnets embedded in the magnetic core

Definitions

  • MAGNETOELECTRIC MACHINE Filed April 7, 1949 2 SHEETS-SHEET 1 rigs mmemm P. HARSCH TAL MAGNETOELECTRIC MACHINE Jan. l5, 1952 2 SHEETS-SHEET 2 Filed April 7, 1949 me ffm/@41M Md M 11n-Maw? Patented Jan. 15, 1952 MAGNETOELECTRIC MACHINE Paul Harsch, Nurnberg-Eibach, Bavaria, and
  • Lighting dynamos of this type for internal combustion engines are known in which a system consisting of permanent magnets rotates about one or more coils.
  • the rotatory magnet system was originally constructed in such a way that at first two bar magnets were bent and provided with pole shoes. These magnets were accommodated in a casing of a non-magnetizable material. This design resulted from the fact that the chromium and cobalt steels used in the beginning of the development of these devices had a relatively small coercitive force. When high-quality material for magnets became available, the magnets could be gradually reduced in size and a greater number of magnets could be accommodated on the same circumference. However, a casing of a non-magnetizable material consisting of brass, bronze, aluminum castings or the like continued to be used for the magnets.
  • a magnetic material closing the outer magnetic circuit between the single magnets is used as a carrier for the magnet. More particularly, iron is used for this purpose.
  • the magnets are radially disposed on their carrier so that contrary to the existing types the lines of magnetic force in the magnet run approximately parallel to the radius passing through the centre of the magnet, while the magnetic ux in the know types followed approximately the direction of the circumference in the bent magnets.
  • a further advantage of the system according to the invention resides in the fact that the magnets can be produced as simple prismatic bodies which engage the carrier and possibly the pole shoes with a relatively large base surface.
  • the magnets may be either provided with separate pole shoes or their head portion itself may be formed as a pole shoe.
  • the pole shoes may consist of flat iron while it had been necessary so far to make them of high quality dynamo sheets.
  • the pole shoes may be provided with steps so that the adjustment of the ignition moment is facilitated without requiring any turning of the coil system.
  • the pole shoes or the magnets respectively are advantageously secured to the carrier with the aid of fixing means of a non-magnetic material, e. g., by brass pins, so as to avoid any magnetic connection from the pole shoe or its inner pole surface to the carrier.
  • the carrier can be drawn in the form of a pot and may consist of an integral piece with the hub, whereby the machining operations and parts so far required for fixing the hub can be dispensed with. It is also possible to weld the hub directly to the casing while this was impossible, for reasons of mechanical strength, with the materials used so far.
  • the casing or carrier for the permanent magnets may be formed as an iron ring in this case also and accommodated in the blower wheel.
  • the whole expensive construction of the blower wheel of a non-magnetizable material and the additional flywheel masses which had to be'spaced by a considerable distance from the magnet can be dispensed with.
  • the use of iron for the blower wheel caused a reduced eiciency in the previous designs unless a larger distance was provided from the edge of the blower to the magnets, with its known disadvantages.
  • the magnets may now be accommodated directly in a blower wheel consisting of iron.
  • the protective cap may be made of sheet iron in the same manner.
  • Fig. 1 is an axial section through a lighting ma.- chine
  • Fig. 2 is a front view of the permanent mag'- net system of Fig. 1, the coil'sand the cores thereof being indicated by dottedzlines,
  • Fig. 3 is an axial section through a'A magnetic system in which the carrier consists of a ring,
  • Fig. 4 is a front View of a magnetwhichisin- ⁇ serted in an annular carrier and whose-head-face is in itself formed as a pole shoe,
  • Fig. 5 is a partial view same as FigA; show.- ing a stepped pole shoe for the adjustment of different ignition times,
  • Fig. Gi a section through a lighting machine with dust cap and fan blades
  • Figi. 7 isa partial viewlof'Fig. 6.
  • magnets consisting of 'high quality magnet alloys,- e. g. of a nickel, aluminum, iron. alloy with small additions of cobalt, chromium or tungsten, or of iron, nickel, cobaltl andv titanium, aresecured withy theirY endface'2 to theerimf 3 ⁇ ofa-pot-shaped casing 4, e. g. of iron whichmay be'formed integral with the hubV 5, a set of coils ii. being provided inside said casing in known manner. llhe whole system is covered by'a cap 'Lofr magnetic material.
  • the magnets Iiv arey built into an annular. ⁇ carrier 8.v which is ⁇ inserted in the casingY 9 of-magnetizable material.
  • pole shoes IE which according to the invention fz may consist of vflat liron are attachedto ⁇ the inner end faces of f the magnets .andi the magnets'. arey held by means of fixing pins II consisting of 1a non-magnetizable material, e. g., of brass..
  • the 'polefsurface I2iof..the. magnets- I- canbe'designed'in suchra' way that' additional -pole shoesmay-be dispensedfwith.
  • a magneto-electric machine comprising in combination, a rotatable carrier consisting of magnetic material and having a hub; a plurality of permanentmagnets having ⁇ center lines radially disposed and arranged ina symmetrical conguration in said carrier with respect to said hub and with equal distances therefrom; and at least. one coil. arranged between said hub and said magnets and having a magnetic core arranged with. the axis.v thereof at any moment at rig-htv angles.
  • the magnetic circuit extends from said magnetic carrier throughfcnefof: said magnets substantially parallelitotheecenter line thereof, said core of said coil, and another of said magnets substantially parallel' to the center line thereof and back to said magnetic carrier.
  • a magneto-electric machine comprising in combination, a rotatable carrier consisting of magnetic material and having a hub; a plurality "of permanent magnets having center lines radially'disposed and arranged with-the axes thereof infradial directions, respectively, and inI symmetrical coniigurationinlsaid carrier with respect-to saidhub and with equal distances therefrom, said magnets being in direct contact with said carrier; and at leastv one'coil arrangedbetween said hub and said magnets and having s.
  • A- magneto-electric machinev comprising in combination, al rotatable carrier consisting of magnetic material and having a hub; a plurality of 'permanentmagnets-having ⁇ center lines radially disposed andy arranged in a ⁇ symmetrical conguration'in said carrierwithsrespect to Vsaid hub and'withequaldistances therefrom; aplurality of ironpole shoes' secured to said magnets, respectively, and having'- part-cylindrical surfaces arranged symmetricallyiaboutsaid hub;
  • a magneto-electric machine comprising in combination, a rotatable carrier consisting of magneticY material Tandv havinga hub; a4 plurality of permanentmagnets having center lines radially dis'posed'and .arranged .ina symmetrical congurationinsaid carrier. with .respectto said hub and with equal distances therefrom a plurality of f iron polefshoes securedfto saidmagnets and formingA the head1 portions thereof, respectively, and having part-cylindrical surfaces: arranged symmetrically about saidphub; andsat least one coil arranged between said huband said.
  • a magneto-electric machine comprising in combination, a rotatable carrier consisting of magnetic material and having a hub; a plurality of permanent magnets having center lines radially disposed and arranged in a symmetrical configuration in said carrier with respect to said hub and with equal distances therefrom; a plurality of iron pole shoes secured to said magnets, respectively, and having part-cylindrical surfaces arranged symmetrically about said hub; at least one coil arranged between said hub and said pole shoes of said magnets and having a magnetic core arranged with the axis thereof at any moment at right angles to one of the radial directions from said hub to said carrier, whereby the magnetic circuit extends from said magnetic carrier through one of said magnets substantially parallel to the center line thereof, said core of said coil, and another of said magnets substantially parallel to the een ter line thereof and back to said magnetic carrier; and steps formed in said part-cylindrical surfaces of said pole shoes, said steps facilitating the change of the magnetic flux in said core when said magnets rotate.
  • a magneto-electric machine comprising in combination, a rotatable carrier consisting of magnetic material and having a hub; a plurality of permanent magnets having center lines radially disposed and arranged in a symmetrical configuration in said carrier with respect to said hub and with equal distances therefrom; at least one coil arranged between said hub and said magnets and having a magnetic core arranged with the axis thereof at any moment at right angles to one of the radial directions from said hub to said carrier, whereby the magnetic circuit extends from said magnetic carrier through one of said magnets substantially parallel to the center line thereof, said core of said coil, and another of said magnets substantially parallel to the center line thereof and back to said magnetic carrier; and an end plate arranged on said carrier and forming a flywheel mass associated with said carrier.
  • a magneto-electric machine comprising in combination, a rotatable carrier consisting of magnetic material and having a hub; a plurality of permanent magnets having center lines radially disposed and arranged in a symmetrical configuration in said carrier with respect to said hub and with equal distances therefrom; at least one coil arranged between said hub and said magnets and having a magnetic core arranged with the axis thereof at any moment at right angles to one of the radial directions from said hub to said carrier, whereby the magnetic circuit extends from said magnetic carrier through one of said magnets substantially parallel to the center line thereof, said core of said coil, and another of magnets substantially parallel to the center line thereof and back to said magnetic carrier; and an end plate arranged on said carrier and forming a ilywheel mass associated with said carrier and including a plurality of fan blades.
  • a magneto-electric machine comprising in combination, a rotatable carrier consisting of magnetic material and having a hub; a plurality of permanent magnets having center lines radially disposed and arranged in a symmetrical configuration in said carrier with respect to said hub and with equal distances therefrom; at least one coil arranged between said hub and said magnets and having a magnetic core arranged with the axis thereof at any moment at right angles to one of the radial directions from said hub to said carrier, whereby the magnetic circuit extends from said magnetic carrier through one of said magnets substantially parallel to the center line thereof, said core of said coil, and another of said magnets substantially parallel to the center line thereof and back to said magnetic carrier; and a protective cap consisting of a drawn sheet metal body and arranged so as to cover said carrier and said magnets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
US85966A 1948-11-06 1949-04-07 Magnetoelectric machine Expired - Lifetime US2582866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0021033 1948-11-06

Publications (1)

Publication Number Publication Date
US2582866A true US2582866A (en) 1952-01-15

Family

ID=7723144

Family Applications (1)

Application Number Title Priority Date Filing Date
US85966A Expired - Lifetime US2582866A (en) 1948-11-06 1949-04-07 Magnetoelectric machine

Country Status (7)

Country Link
US (1) US2582866A (enrdf_load_stackoverflow)
BE (1) BE487531A (enrdf_load_stackoverflow)
CH (1) CH275588A (enrdf_load_stackoverflow)
DE (1) DE953202C (enrdf_load_stackoverflow)
FR (1) FR1105851A (enrdf_load_stackoverflow)
GB (1) GB666431A (enrdf_load_stackoverflow)
NL (1) NL149336B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806156A (en) * 1954-11-05 1957-09-10 Russell E Phelon Flywheel magneto
US2856550A (en) * 1957-01-31 1958-10-14 Russell E Phelon Rotor for an electric generator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1141706B (de) * 1955-05-27 1962-12-27 Siemens Ag Wechselstrommaschine fuer hoehere Frequenz mit permanenten Magneten
FR2386925A1 (fr) * 1977-04-06 1978-11-03 Novi Pb Sa Stator multipolaire de volant magnetique

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1810844A (en) * 1927-11-09 1931-06-16 Morel Emile Magneto-electric machine
US2104707A (en) * 1935-11-26 1938-01-04 Rawlings George William Electric generator
US2446761A (en) * 1947-06-18 1948-08-10 Wico Electric Co Combined magneto and alternator
US2458336A (en) * 1947-07-16 1949-01-04 Wico Electric Co Field magnet unit for flywheel magnetos
US2462761A (en) * 1946-02-12 1949-02-22 Singer Mfg Co Inductor alternator
US2469196A (en) * 1946-01-04 1949-05-03 Pioneer Gen E Motor Corp Magneto magnet
US2472313A (en) * 1946-06-13 1949-06-07 Russell E Phelon Flywheel magneto

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE715748C (de) * 1938-08-18 1942-01-06 Deutsche Edelstahlwerke Ag Dauermagnetsystem, insbesondere fuer elektrische Maschinen und Apparate
DE742360C (de) * 1940-07-27 1943-12-01 Licht Und Kraft Ag Anordnung zur Vermeidung der Schwaechung des magnetischen Kraftflusses permanenter Magnete elektrischer Maschinen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1810844A (en) * 1927-11-09 1931-06-16 Morel Emile Magneto-electric machine
US2104707A (en) * 1935-11-26 1938-01-04 Rawlings George William Electric generator
US2469196A (en) * 1946-01-04 1949-05-03 Pioneer Gen E Motor Corp Magneto magnet
US2462761A (en) * 1946-02-12 1949-02-22 Singer Mfg Co Inductor alternator
US2472313A (en) * 1946-06-13 1949-06-07 Russell E Phelon Flywheel magneto
US2446761A (en) * 1947-06-18 1948-08-10 Wico Electric Co Combined magneto and alternator
US2458336A (en) * 1947-07-16 1949-01-04 Wico Electric Co Field magnet unit for flywheel magnetos

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2806156A (en) * 1954-11-05 1957-09-10 Russell E Phelon Flywheel magneto
US2856550A (en) * 1957-01-31 1958-10-14 Russell E Phelon Rotor for an electric generator

Also Published As

Publication number Publication date
CH275588A (de) 1951-05-31
DE953202C (de) 1956-11-29
FR1105851A (fr) 1955-12-08
BE487531A (enrdf_load_stackoverflow)
GB666431A (en) 1952-02-13
NL149336B (nl)

Similar Documents

Publication Publication Date Title
US4146806A (en) Flywheel magneto generator
JPS5851222B2 (ja) 車輪速度トランスジユ−サ
US2303893A (en) Dynamo-electric machine
US2582866A (en) Magnetoelectric machine
US2192985A (en) Electric generating apparatus
US2101392A (en) Electric generator
US1991046A (en) Process for making magneto rotors
US2255477A (en) Rotor
US2161953A (en) Rotor for magneto electric generator
US1274115A (en) Electric generator.
FR1271654A (fr) Dispositif de montage du rotor d'une machine tournante
US2317187A (en) Dynamoelectric machine
US2736827A (en) Magneto rotors
US2892109A (en) Permanent magnet alternators
US1798571A (en) Magneto-electric ignition apparatus
US2696567A (en) Rotor for magnetos and method of making the same
US2299589A (en) Magneto rotor
US2323035A (en) Synchronous motor
US1935230A (en) Dynamo-electric machine
US516170A (en) Armature for dynamo-electric machines
JPS6015409Y2 (ja) 突極形回転電機の回転子
US1993824A (en) Magneto-electric machine
US2552315A (en) Self-starting synchronous electric motor
JP2003274601A (ja) 内燃機関用フライホイール磁石回転子
EP0305670B1 (en) Flywheel generator with improved ignition pilot device