US3150278A - Small alternator - Google Patents

Small alternator Download PDF

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Publication number
US3150278A
US3150278A US814330A US81433059A US3150278A US 3150278 A US3150278 A US 3150278A US 814330 A US814330 A US 814330A US 81433059 A US81433059 A US 81433059A US 3150278 A US3150278 A US 3150278A
Authority
US
United States
Prior art keywords
alternator
core
housing
distributor
bore
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
US814330A
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English (en)
Inventor
Richard B Clark
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.)
Bendix Corp
Ignition Products Corp
Original Assignee
Bendix Corp
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 Bendix Corp filed Critical Bendix Corp
Priority to US814330A priority Critical patent/US3150278A/en
Priority to ES0257916A priority patent/ES257916A1/es
Priority to DE19601438712 priority patent/DE1438712A1/de
Priority to GB16350/60A priority patent/GB915329A/en
Application granted granted Critical
Publication of US3150278A publication Critical patent/US3150278A/en
Anticipated expiration legal-status Critical
Assigned to HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC. reassignment HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UNISON INDUSTRIES LIMITED PARTNERSHIP
Assigned to IGNITION PRODUCTS CORPORATION reassignment IGNITION PRODUCTS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ALLIED-SIGNAL INC.
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/02—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of distributors
    • F02P7/021—Mechanical distributors
    • F02P7/026—Distributors combined with other ignition devices, e.g. coils, fuel-injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/10—Drives of distributors or of circuit-makers or -breakers
    • 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
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
    • 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
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof

Definitions

  • This invention relates to an ignition system for an internal combustion engine of the spark ignited type. More particularly, the invention relates to an improved current generating alternator and distributor for such system, and to the combination of such alternator and distributor with elements of an ignition system including an externally mounted voltage step-up coil.
  • the invention has among its objects the provision of improved current generating alternators for an engine ignition system, the alternator being particularly characterized by its compactness, simplicity, and the ease with which it may be assembled and serviced.
  • a further object of the invention lies in the provision of an alternator which is easily adaptable to being mounted upon various diiferent engines, and to being mounted in various positions and driven in various manners as re quired.
  • Yet another object of the invention lies in the provision of an improved combined alternator of the type described and a distributor mounted in the same housing as the alternator.
  • FIG. 1 is a view in axial longitudinal section through a preferred embodiment of a combined alternator'and distributor made in accordance with the invention
  • FIG. 2 is a view in end elevation of the apparatus of FIG. 1 with the distributor cover removed therefrom, the view being taken in the direction from left to right in FIG. 1;
  • FIG. 3 is a view in transverse section through the field coil assembly and the rotor of the apparatus of FIG. 1, the section being taken generally along line 3-3 of FIG. 1;
  • FIG. 4 is a view in longitudinal axial section through the field assembly of the alternator, the section being taken generally along the line 44 of FIG. 3;
  • FIG. 5 is a somewhat diagrammatic View in side elevation of an internal combustion engine of the spark ignited type incorporating an ignition system in accordance with the invention
  • FIG. 6 is a view in longitudinal axial section through a voltage step-up coil which may be employed in the ignition system of FIG. 5, certain of the parts being shown in elevation;
  • FIG. 7 is a somewhat schematic wiring diagram of the ignition system of FIG. 5.
  • the combined alternator and distributor of the invention may advantageously be employed with a number of different internal combustion engines of the spark ignited type.
  • Such combined alternator and distributor is generally circular cylindrical and is substantially symmetrical about its longitudinal axis. Because of its compactness,
  • Such unit may readily be mounted in a small space, as in a cramped engine compartment, and may be driven in any convenient manner in synchronism with the crank shaft, as by being drivingly connected to the cam shaft of the engine.
  • the ignition system of the invention employs a voltage step-up coil located externally of the alternator and distributor unit in any convenient location, preferably in the engine compartment. The ignition system and the combined alternator and distributor of the invention thus provide a maximum of flexibility in its use with engines of various design.
  • Unit 10 has two main sections, the first of which, designated 11, is the alternator section, and the second of which, designated 12, i the distributor section.
  • Sections 11 and 12 are disposed coaxially of each other and are generally contained within a metallic casing or housing having two end-abutted sections 14 and 15.
  • Such housing sections which are held together in alignment in a manner to be described, journalthe main shaft 16 of the alternator and distributor in bearings 17 and 20.
  • housing section 15 has an end wall 19 which carries a central boss with the bearing 17 therein.
  • Housing section 14 has an inner transverse wall or partition 21 carrying the bearing 20 therein.
  • a circular cylindrical permanent magnet 22 Secured to shaft 16, within the alternator portion 15 of the housing, is a circular cylindrical permanent magnet 22 through which shaft 16 extends axially.
  • Two generally U-shaped rotor shoe members 24 and 25 are disposed on shaft 16 at opposite ends of magnet 22, the shoe means 24 and 25 facing in opposite directions and being displaced from each other so that the longitudinally directed shoe pieces of means 24 and 25 overlie the permanent magnet 22, are radially spaced from the magnet, and are interdigitated.
  • a field assembly 26 having a generally annular transversely laminated field core 27 snugly received within an annular seat 29 in housing portion 15.
  • the field core 27 has four radially inwardly projecting legs 30, there being a field coil 31 disposed about each of legs 30.
  • a slot 32 which receives the inwardly projecting end of a longitudinally extending pin 34 secured to housing portion 15, as shown in FIG. 1.
  • At least one of the metal laminations making up the field core is bent out of its plane so that when relaxed the field core has an axial length appreciably greater than its axial compacted length.
  • the bent lamination is either one of the end laminations; in FIG. 4 it is the left hand outer lamination which is bent axially from its plane to form a plurality of bends 35. If desired, the other end lamination may be similarly bent.
  • housing portions 14 and 15 generally designated 33, has a relatively short axially extending flange on housing portion 14, such flange extending into the outer end of seat 29.
  • the tightening up of the retaining studs between the housing portions one of which is shown at 38, causes the bent lamination or laminations of the field core to be flattened, and thus resiliently to hold the field core against endwise motion in the seat 29.
  • breaker assembly 37 In the recess at the outer end of the distributor portion 14, there are located a breaker assembly 37 and a distributor assembly.
  • the breaker assembly includes a cam 36 mounted on shaft 16, such cam cooperating with a conventional breaker arm mounted on a post 39 which partment.
  • central high tension contact 45 and distributes high voltage discharges delivered to such centercontact in a manner to be described to the respective outer terminals 46 as the finger 44 rotates therepast.
  • FIG. there is shown one convenient form of mounting for the alternator 10.
  • the engine 56 thereshown is of the four cylinder, four-cycle type, wherein.
  • camshaft 59 is driven at one-half the speedof crank shaft '57.
  • alternator 11 which is driven at the same speed as camshaft 59 through 'drive means 60, is
  • the breaker cam 36 has four equally spaced rises or lobes thereon.
  • the distributor portion of the alternator therefore, functions to direct high tension electrical impulses through wires 48, connected to outer terminals 46, in the proper sequence andtimed relationship to the respective spark plugs 49 of the engine.
  • the central terminal 450i thedistributor is connected by a wire 50 to the output of the secondary 51 of a voltage step-up coil 47, whichis externally mounted at a convenient location, for example, in the engine com-
  • the primary 52 of coil 47 is supplied by the alternator it the contacts 42 of thebreaker assembly 37 being interposed in a circuit which selectively grounds the wire 54 leading from the alternator to the primary 52 of the coil 47.
  • FIG. 7 shows the manner in which the components of the alternator are connected, and also the manner in which the alternator is connected to the other circuits of the engine.
  • the four field coils 31 are serially connected, one end of such circuit being connected to ground, that is, the frame of the alternator, and the other end being connected to the delivery wire 54.
  • the breaker contacts 42 are interposedin a circuit which alternately closes the field coil circuit and opens such circuit, therebyto allow the delivery of a pulse of electrical energy to the primary 52 of coil 47.
  • the secondary 51 ofsuch coil is connected, as shown, to the central contact of the distributor, the distributor functioning as a rotary switch selectively electrically connecting central contact 45 to the respective outer contact 46.
  • the combined alternator and distributor of the present invention is shown as being employed in an ignition system employing one voltage step-up coil. It is to be understood, however, that the device of the invention may readily be adaptedvto use in a system wherein a separate voltage step-up coil is employed-for each engine cylinder. tributor of the device are wired so that the primary of each coil is fed with a pulse of low tension current at In such system the breaker points and disthe proper time, the coils steppingup the voltage of such I pulses so as to create electrical discharges at the respective spark plugs.
  • a housing comprising first and second members, said first member having a bore of uniform diameter terminating at a radial shoulder, an annular field core slidably mounted in and closely fitting said bore throughout the length of the core, the inner end of the latter being seated against said shoulder, said second member being in end-to-end abutment with said first member and having an axially extending pilot portion slidably extending into said bore against the other endof said core, and means for securing said members in assembled relation.
  • a housing comprising first and second members, said first member, having a bore of uniform diameter in one end thereof terminating at its inner end at a radial shoulder and said second member 7 being in end-to-end abutment with said first member and having an axially extending pilot portion slidablyextending into said bore, an annular field core slidably mounted in and closely fitting said bore throughout the entire length of the core with a peripheral portion thereof closely confined between said shoulder and said pilot portion, and means for securing said members in assembled relation.
  • a housing comprising first and second members, said'first member having a ,bore terminating at a radial shoulder and said second member ,being in end-to-end abutment with said first member and having an axially extending pilot portion extending into said bore, an annular field core slidably mounted in said bore with a peripheral portion thereof confined between said shoulder and said pilot portion, means for securing said members in'assembled relation, and re silient means under compression for holding said core against axial movement between said shoulder and said pilot portion.
  • said core has a plurality of circumferentially spaced, inwardly extending radial poles, and comprising a coil Wound on each of said poles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Motor Or Generator Frames (AREA)
US814330A 1959-05-19 1959-05-19 Small alternator Expired - Lifetime US3150278A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US814330A US3150278A (en) 1959-05-19 1959-05-19 Small alternator
ES0257916A ES257916A1 (es) 1959-05-19 1960-05-07 Perfeccionamientos en alternadores
DE19601438712 DE1438712A1 (de) 1959-05-19 1960-05-09 Wechselstromgenerator mit einem laenglichen Gehaeuse fuer eine Laeufer- und Staenderanordnung
GB16350/60A GB915329A (en) 1959-05-19 1960-05-09 Improvements in or relating to alternators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US814330A US3150278A (en) 1959-05-19 1959-05-19 Small alternator

Publications (1)

Publication Number Publication Date
US3150278A true US3150278A (en) 1964-09-22

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ID=25214730

Family Applications (1)

Application Number Title Priority Date Filing Date
US814330A Expired - Lifetime US3150278A (en) 1959-05-19 1959-05-19 Small alternator

Country Status (4)

Country Link
US (1) US3150278A (de)
DE (1) DE1438712A1 (de)
ES (1) ES257916A1 (de)
GB (1) GB915329A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403276A (en) * 1966-02-28 1968-09-24 Stewart Warner Corp Electrical tachometer sender
US3452730A (en) * 1967-06-13 1969-07-01 Ambac Ind Pulse generating apparatus
US4286187A (en) * 1978-04-14 1981-08-25 Robert Bosch Gmbh Bearingless generator and rotary machine combination
US4337406A (en) * 1978-05-27 1982-06-29 Robert Bosch Gmbh Bearing-less remotely journalled dynamo electric machine, particularly alternator for combination with a gas turbine
US4369384A (en) * 1978-07-05 1983-01-18 Whitehead Motofides S.P.A. Alternator for a marine engine
US4619591A (en) * 1985-11-11 1986-10-28 Mitsubishi Denki Kabushiki Kaisha In-tank type fuel pump
US5210453A (en) * 1991-01-25 1993-05-11 Ford Motor Company Through bolt resonance suppression in an alternator
US20020130570A1 (en) * 2001-03-16 2002-09-19 Howe Steven S. Alternator and method of manufacture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3072223B1 (fr) * 2017-10-11 2020-05-22 Renault S.A.S Machine electrique tournante comprenant des moyens de montage du stator perfectionnes.

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1554438A (en) * 1922-05-10 1925-09-22 North East Electric Co Dynamo-electric machine
US1577976A (en) * 1922-04-24 1926-03-23 Electro Magnetic Tool Company Power-driven tool-operating device
US1674876A (en) * 1924-04-28 1928-06-26 North East Electric Co Dynamo-electric machine
US2234926A (en) * 1938-05-21 1941-03-11 Chicago Flexible Shaft Co Electric motor
US2493414A (en) * 1946-10-08 1950-01-03 Ritter Co Inc Method of making cores for electrical apparatus
FR962064A (de) * 1950-05-31
US2552023A (en) * 1949-03-15 1951-05-08 Edgar J Schoen Electric motor-driven agitator
US2655611A (en) * 1951-01-13 1953-10-13 Whizzer Motor Company Alternating current generator
US2713128A (en) * 1952-10-07 1955-07-12 Dominic S Toffolo Dynamoelectric machine
US2749458A (en) * 1956-06-05 Buchmann
US2761987A (en) * 1955-01-12 1956-09-04 Allis Chalmers Mfg Co Disk spring for stator core
US2866912A (en) * 1957-02-15 1958-12-30 Charles J Williamson Distributor
US2871384A (en) * 1955-09-14 1959-01-27 George W Baker Stator constructions for synchronous hysteresis motors
US2918796A (en) * 1956-07-23 1959-12-29 Elmeg Electro-hydraulic shifting device

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR962064A (de) * 1950-05-31
US2749458A (en) * 1956-06-05 Buchmann
US1577976A (en) * 1922-04-24 1926-03-23 Electro Magnetic Tool Company Power-driven tool-operating device
US1554438A (en) * 1922-05-10 1925-09-22 North East Electric Co Dynamo-electric machine
US1674876A (en) * 1924-04-28 1928-06-26 North East Electric Co Dynamo-electric machine
US2234926A (en) * 1938-05-21 1941-03-11 Chicago Flexible Shaft Co Electric motor
US2493414A (en) * 1946-10-08 1950-01-03 Ritter Co Inc Method of making cores for electrical apparatus
US2552023A (en) * 1949-03-15 1951-05-08 Edgar J Schoen Electric motor-driven agitator
US2655611A (en) * 1951-01-13 1953-10-13 Whizzer Motor Company Alternating current generator
US2713128A (en) * 1952-10-07 1955-07-12 Dominic S Toffolo Dynamoelectric machine
US2761987A (en) * 1955-01-12 1956-09-04 Allis Chalmers Mfg Co Disk spring for stator core
US2871384A (en) * 1955-09-14 1959-01-27 George W Baker Stator constructions for synchronous hysteresis motors
US2918796A (en) * 1956-07-23 1959-12-29 Elmeg Electro-hydraulic shifting device
US2866912A (en) * 1957-02-15 1958-12-30 Charles J Williamson Distributor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3403276A (en) * 1966-02-28 1968-09-24 Stewart Warner Corp Electrical tachometer sender
US3452730A (en) * 1967-06-13 1969-07-01 Ambac Ind Pulse generating apparatus
US4286187A (en) * 1978-04-14 1981-08-25 Robert Bosch Gmbh Bearingless generator and rotary machine combination
US4337406A (en) * 1978-05-27 1982-06-29 Robert Bosch Gmbh Bearing-less remotely journalled dynamo electric machine, particularly alternator for combination with a gas turbine
US4369384A (en) * 1978-07-05 1983-01-18 Whitehead Motofides S.P.A. Alternator for a marine engine
US4619591A (en) * 1985-11-11 1986-10-28 Mitsubishi Denki Kabushiki Kaisha In-tank type fuel pump
US5210453A (en) * 1991-01-25 1993-05-11 Ford Motor Company Through bolt resonance suppression in an alternator
US20020130570A1 (en) * 2001-03-16 2002-09-19 Howe Steven S. Alternator and method of manufacture
US6774518B2 (en) 2001-03-16 2004-08-10 Altech Generating Systems Llc Alternator and method of manufacture
US20040169429A1 (en) * 2001-03-16 2004-09-02 Howe Steven E. Alternator and method of manufacture
US6849974B2 (en) 2001-03-16 2005-02-01 Altech Generating Systems, Llc Alternator and method of manufacture
US20050121988A1 (en) * 2001-03-16 2005-06-09 Altech Generating Systems Llc Alternator and method of manufacture

Also Published As

Publication number Publication date
ES257916A1 (es) 1960-07-16
GB915329A (en) 1963-01-09
DE1438712A1 (de) 1969-09-25

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Legal Events

Date Code Title Description
AS Assignment

Owner name: HOUSEHOLD COMMERCIAL FINANCIAL SERVICES, INC.

Free format text: SECURITY INTEREST;ASSIGNOR:UNISON INDUSTRIES LIMITED PARTNERSHIP;REEL/FRAME:005012/0090

Effective date: 19890106

Owner name: IGNITION PRODUCTS CORPORATION

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ALLIED-SIGNAL INC.;REEL/FRAME:005012/0079

Effective date: 19881231