US3584229A - Electric starter motor systems for internal combustion engines - Google Patents

Electric starter motor systems for internal combustion engines Download PDF

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Publication number
US3584229A
US3584229A US835977A US3584229DA US3584229A US 3584229 A US3584229 A US 3584229A US 835977 A US835977 A US 835977A US 3584229D A US3584229D A US 3584229DA US 3584229 A US3584229 A US 3584229A
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US
United States
Prior art keywords
switch
plunger
winding
limb
armature
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
US835977A
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English (en)
Inventor
John Godfrey Wilson West
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.)
ZF International UK Ltd
Original Assignee
Lucas 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
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Publication of US3584229A publication Critical patent/US3584229A/en
Anticipated expiration legal-status Critical
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
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings

Definitions

  • the first switch is normally open and the second switch normally closed, and the switches form part of a solenoid having a short-circuited winding.
  • the normally open switch closes but there is a delay before the normally closed switch opens as a result of the short-circuited winding.
  • PATENTED JUN 8 ⁇ am KT 5ENEYS ELECTRIC STARTER MOTOR SYSTEMS FOR INTERNAL COMBUSTION ENGINES
  • This invention relates to electric starter motor systems for use in internal combustion engines.
  • An electric starter motor system comprises in combination first and second terminals which in use are connected to a battery, a normally open switch connected in series with the armature of the motor and the field winding of the motor between said first and second terminals, a normally closed switch connected in series with a resistor across the armature, the normally open switch and the .normally closed switch being part of a solenoid which includes a short-circuited winding, said short-circuited winding serving ,when the solenoid is energized to provide a delay between closing of the normally open switch and opening of the normally closed switch, the arrangement being such that during the delay period the motor is operated at reduced power but with full field current.
  • the switches are conveniently operated by plungers coaxially mounted within the solenoid with one plunger slidable within the other, with the short-circuited winding carried by one of the plungers.
  • FIG. 1 is a circuit diagram illustrating one example of the invention, the solenoid used in the circuit being shown in diagrammatic form, and
  • FIG. 2 is a sectional side view showing a second example of a solenoid. 1
  • a battery 11 having its negative terminal earthed, and its positive terminal connected through a pair of normally open contacts 12 to one side of the armature 13 of a starter motor, the other side of the armature 13 being earthed through the field winding 14 of the starter motor.
  • the armature 13 is bridged by a pair of normally closed contacts 15 in series with a resistor 16, which may be an actual resistor, or may be constituted by the resistance of the lead between the contacts 15 and the junction of the armature 13 and winding 14.
  • the contacts 12, 15 form part of a solenoid 17 having an E- shaped core 18 on the central limb of which is mounted a winding 19, one side of which is ea'rthed, and the other side of which is connected to the positive battery terminal through a starter switch 21.
  • the winding 19 When the winding 19 is energized, it attracts a pair of plungers 22, 23 to close the contacts 12 and open the contacts 15 respectively, but opening of the contacts 15 when the winding 19 is energized is delayed for a predetermined period of time by a short circuit winding 24 woundon one of the outer limbs of the core 18.
  • the starter switch 21 When it is desired to start the engine of the vehicle with which the parts are associated, the starter switch 21 is closed to energize the winding 19 and close the contacts 12. Current now flows from the battery through the field winding 14 and the armature 13, it being appreciated that full field current flows in the winding 14, but, by virtue of the resistor 16, only a reduced current flows in the armature 13. Thus, the motor operates at reduced power. After the predetermined period of time, the switch 15 opens so that the resistor 16 is no longer in circuit, and the motor then operates at full power. The delay enables a starter pinion associated with the starter motor to engage with a toothed wheel on the engine before full power is applied, and in a modification, the switch 15 is not associated with the solenoid, but opens automatically when the pinion and tooth wheel engage.
  • the switch 21 When the starter motor has started the engine, the switch 21 is allowed to open so that the winding 19 is deenergized. As a result, the contacts 12 open to break the circuits to the starter motor, and the contacts 15 close to short circuit the armature, thereby contributing dynamic braking.
  • the solenoid shown includes a body 31 supporting the windin 19 and its associated plunger 22, which 18 axially slidable in t e body and includes an extension 22a for operating the contacts 12 as shown.
  • the plunger 23 is axially slidable within the plunger 22 and incorporates an extension 23a slidable within the extension 22a and serving to operate the contacts 15. Both plungers are spring-loaded to their normal position, and the winding 24 is in the form of a sleeve carried by the plunger 23.
  • An electric starter motor system for an internal combustion engine comprising a combination a battery, a starter motor having an armature and a field winding, an E-shaped magnetic core having a central limb and first and second outer limbs, a first winding on said central limb, means connecting said firstwinding'in series with a first switch across said battery, an earthed winding on the first outer limb, a first plunger normally spaced from said central limb and said second outer limb, but attractable into engagement with said central limb and said second outer limb, a second plunger normally spaced from said central limb and said first outer limb, but attractable into engagement with said central limb and said first outer limb, a contact carried by said first plunger and forming part of a second switch, said second switch being open when said first plunger is spaced from said central limb and said second outer limb, but being closed when said first plunger engages said central limb and said second outer limb, means connecting said second switch in series with said armature and said field wind
  • An electric starter motor system for an internal combustion engine comprising in combination a battery, a starter motor having an annature and a field winding, a body part, a first winding supported by said body part, means connecting said first winding in series with a switch across said battery, a first plunger slidably mounted in said body part with said first winding surrounding said first plunger, a contact carried by said first plunger and forming part of a second switch, resilient means urging said first plunger to a position in which said second switch is open, means connecting said second switch in series with said armature and said field winding across the battery, a second plunger slidably mounted within said first plunger, a short-circuited winding carried by said second plunger, a contact carried by said second plunger and forming part of a third switch, resilient means urging said second plunger to a position in which said first switch is closed, a resistor, and means connecting said third switch in series with said resistor, and means connecting said third switch in series with said resistor across said resist

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor And Converter Starters (AREA)
US835977A 1968-07-15 1969-06-24 Electric starter motor systems for internal combustion engines Expired - Lifetime US3584229A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3362268 1968-07-15

Publications (1)

Publication Number Publication Date
US3584229A true US3584229A (en) 1971-06-08

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ID=10355310

Family Applications (1)

Application Number Title Priority Date Filing Date
US835977A Expired - Lifetime US3584229A (en) 1968-07-15 1969-06-24 Electric starter motor systems for internal combustion engines

Country Status (6)

Country Link
US (1) US3584229A (fr)
JP (1) JPS4825446B1 (fr)
DE (1) DE1935513C3 (fr)
ES (1) ES175107Y (fr)
FR (1) FR2019298A1 (fr)
GB (1) GB1266335A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668871A (en) * 1983-10-27 1987-05-26 Mitsubishi Denki Kabushiki Kaisha Auxiliary device driving starter motor
US4721872A (en) * 1987-07-06 1988-01-26 Simmons George W Safety ground system
US5670761A (en) * 1994-02-03 1997-09-23 Delta Schoeller Ltd. Electrical switch
EP0911516A1 (fr) * 1997-10-20 1999-04-28 Denso Corporation Démarreur muni de moyens pour limiter la rotation du pignon et de moyens pour limiter le mouvement du noyau de l'électroaimant
US5929582A (en) * 1997-10-02 1999-07-27 Hallidy; William M. Direct current electrical motor system and method of using same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3231353A1 (de) * 1982-08-24 1984-03-01 Alfred Teves Gmbh, 6000 Frankfurt Elektromechanischer bremskraftverstaerker
FR2532690B1 (fr) * 1982-09-08 1987-04-17 Piras Antoine Economiseur de demarreur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US897538A (en) * 1907-03-06 1908-09-01 Gen Electric System of motor control.
US1605977A (en) * 1926-11-09 Electric motor
US2774925A (en) * 1953-04-29 1956-12-18 Dormeyer Corp Electric motor speed control system
US3221234A (en) * 1962-10-17 1965-11-30 Bell Telephone Labor Inc Series motor with speed-controlling shunt for the armature

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1605977A (en) * 1926-11-09 Electric motor
US897538A (en) * 1907-03-06 1908-09-01 Gen Electric System of motor control.
US2774925A (en) * 1953-04-29 1956-12-18 Dormeyer Corp Electric motor speed control system
US3221234A (en) * 1962-10-17 1965-11-30 Bell Telephone Labor Inc Series motor with speed-controlling shunt for the armature

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4668871A (en) * 1983-10-27 1987-05-26 Mitsubishi Denki Kabushiki Kaisha Auxiliary device driving starter motor
US4721872A (en) * 1987-07-06 1988-01-26 Simmons George W Safety ground system
US5670761A (en) * 1994-02-03 1997-09-23 Delta Schoeller Ltd. Electrical switch
US5929582A (en) * 1997-10-02 1999-07-27 Hallidy; William M. Direct current electrical motor system and method of using same
EP0911516A1 (fr) * 1997-10-20 1999-04-28 Denso Corporation Démarreur muni de moyens pour limiter la rotation du pignon et de moyens pour limiter le mouvement du noyau de l'électroaimant
US6114772A (en) * 1997-10-20 2000-09-05 Denso Corporation Starter having pinion rotation restricting member and plunger movement restricting member

Also Published As

Publication number Publication date
ES175107Y (es) 1972-12-01
ES175107U (es) 1972-06-01
GB1266335A (fr) 1972-03-08
DE1935513B2 (de) 1974-12-19
JPS4825446B1 (fr) 1973-07-28
DE1935513A1 (de) 1970-03-12
DE1935513C3 (de) 1975-07-31
FR2019298A1 (fr) 1970-07-03

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