US3456121A - Device for starting internal combustion engines - Google Patents

Device for starting internal combustion engines Download PDF

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Publication number
US3456121A
US3456121A US600237A US3456121DA US3456121A US 3456121 A US3456121 A US 3456121A US 600237 A US600237 A US 600237A US 3456121D A US3456121D A US 3456121DA US 3456121 A US3456121 A US 3456121A
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US
United States
Prior art keywords
relay
engine
diode
thermostat
car
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
US600237A
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English (en)
Inventor
Carl-Gustav Simon Johansson
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.)
Gylling and Co AB
Original Assignee
Gylling and Co AB
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 Gylling and Co AB filed Critical Gylling and Co AB
Application granted granted Critical
Publication of US3456121A publication Critical patent/US3456121A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/02—Details of the control
    • 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
    • F02N11/0803—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
    • F02N2200/023—Engine temperature

Definitions

  • the starting relay is coupled in the second circuit and the second circuit is parallel to the ignition circuit.
  • the coupling relay is connected between the thermostat and the chassis of the car.
  • Means are provided which upon exceeding a certain number of revolutions of the engine reduce the energizing of the coupling relay to such an extent that the relay will fall.
  • a contact is coupled in series with the coupling relay which is normally closed but adapted to interrupt when the engine is started.
  • a relay coil is adapted to influence the contact and a transistor is controlled by the pulses from the ignition circuit with the relay coil coupled in series with the transistor.
  • the present invention has reference to a device of an automatic starting of internal combustion engines provided with a charging generator and a starting relay, in particular engines for vehicles provided with a thermostat which is adapted, at a certain temperature of the engine, e.g. 60 C., to close the ignition circuit of the engine and at another higher temperature, e.g. 80 C., to cut off this circuit.
  • a coupling relay for closing the current circuit in which the starting relay is coupled and which is parallel to the ignition circuit is coupled between the thermostat and the chassis of the car and that means are arranged, at the exceeding of a certain number of revolutions of the engine, to reduce the energizing of the coupling relay to such a degree that the relay falls.
  • FIGS. 1 and 2 show coupling diagrams of two different embodiments of the start device according to the invention.
  • reference letter 1 denotes the thermostat which interrupts at a certain maxi-mum temperature of the engine, e.g. 80 C., and closes at a certain minimum temperature, e.g. 60 C. (or at corresponding temperatures in the coup of the car in which the engine is arranged) and a coupling relay has been denoted with 2, its closing contact with 3 and another relay with 4 and the disconnecting switch of this relay with 5, a transistor with 6, a resistance with 7, a condenser with 8 and a diode with 9, a voltage limiting diode with 10 and a condenser with 11.
  • a thermostat has been denoted with La closing switch to the start relay with 3 and the two solenoids of the coupling relay with 12 and 13, respectively, a diode with 14 and another diode with 15.
  • FIGURE 1 The battery voltage reaches via the thermostat 1 the relay coil 2 which via the switch 5 is connected to the negative pole of the car battery.
  • the relay coil 2 influences the contact 3 which is coupled between the battery and the starting relay of the engine.
  • From the thermostat 1 there extends also a connection to the ignition system of the car and to the relay coil 4 the other side of which via the transistor '6 is connected to the negative pole.
  • a resistance 7 and a condenser 8 are connected between the base and emitter of the transistor.
  • a connection extends from the breaker points of the current distribuor via the condenser 11 and the diode 9 to the base of the transistor.
  • the diode 10 limiting the voltage, this diode 10 taking the shape e.g. of a Zenerdiode.
  • FIGURE 2 From the thermostat 1 there extends a connection to the ignition system of the car. Current is fed from the thermostat 1 via a diode 15 through the relay coil 12 to earth. Between the generator of the car and earth there is connected a relay coil 13. The relay coils 12 and 13 are orientated in such a way that their magnet fields counteract each other. Between the generator of the car and the relay coil 12 there is coupled a diode 14.
  • FIGURE 1 When the engine has reached such a temperature that the thermostat 1 closes, the ignition system of the car is fed with voltage. Further, a current streams through the relay coil 2 via the contact 5 to earth. The relay coil 2 will then close the contact 3 whereas the starting relay of the engine and the start of the engine will begin to function. When the engine stands still, the transistor 6 is completely closed so that any current cannot pass through the relay coil 4. When the engine has started, positive voltage pulses will pass from the breaker points of the current distributor to the condenser 11. Here these pulses will be formed in such a way that the pulse time will be very short. The diode 10 limiting the voltage will ensure that all the pulses will be given the same voltage. The pulses charge the condenser 8 via the diodes 9.
  • the diode 9 prevents the discharge of the condenser 8 via the current distributor.
  • the resulting voltage over the condenser 8 will be so high that the transistor 6 opens and a current will go from the thermostat 1 through the relay coil 4 and the transistor 6 to earth.
  • the contact 5 opens which cuts oh the cur-rent through the relay coil 2 so that the contact 3 opens.
  • the current can then no more pass from the positive voltage to the starting relay, and the engine will therefore stop.
  • a resistance 7 is coupled betwen the base and the emitter of the transisor 6 so as o prevent any remaining charge on the condenser 8 to open the transistor 6 when the engine has stopped.
  • FIGURE 2 A current is fed from the thermostat 1 via the diode 15 through the relay coil 12 to earth which causes the contact 3 to be closed whereas current will go from the positive pole to the starting relay of the car.
  • the engine When the engine starts, its generator will deliver a voltage and current will go from the coil 13 to earth. Since the relay coils 12 and 13 are identical but their magnet fields are directed 0pposite each other, the contact 3 will again be disconnected whereby the starting relay and the start of the engine of the car are disconnected.
  • the thermostat 1 is disconnected but the engine is driven in the usual manner, a current will pass from the generator through the relay coil 13 to earth.
  • the disconnection of the starting relay has been shown as taking place by means of electric coupling means but the disconnection may according to the invention be carried out by means of purely mechanical means so that depending of the number of revolutions of the combustion engine or the charging generator, a disconnection on the starting relay will take place at reaching a certain predetermined number of revolutions.
  • Means for automatically starting an internal combustion engine of a car having a charging generator, an ignition circuit, and a starting relay comprising a thermostat adapted at a certain predetermined temperature of the engine to close said igniion circuit and at a higher temperature to interrupt said circuit, a second circuit, a coupling relay adapted to close said second circuit, said starting relay being coupled in said second circuit, said second circuit being parallel to said ignition circuit, said coupling relay being connected between said thermostat and the chassis of the car, means upon exceeding a certain number of revolutions of the engine reducing the energizing of said coupling relay to such an extent that the relay will fall, a contact coupled in series with said coupling relay, said contact being normally closed but adapted to interrupt when the engine is started, a relay coil adapted to influence said contact, a transistor controlled by the pulses from said ignition circuit, said relay coil being coupled in series with said transistor.
  • a Zener-diode for limiting the voltage is connected between said condenser and said diode, said Zener-diode being connected to earth.
  • said coupling relay is provided with two identical coils, one of said coils being coupledbetween said thermostat and earth and the other one of said coils being coupled between the generator of the car and earth, said coils being polarized in such a way that their magnetic fields have opposite directions.

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  • 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)
US600237A 1966-02-14 1966-12-08 Device for starting internal combustion engines Expired - Lifetime US3456121A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE01847/66A SE326601B (pl) 1966-02-14 1966-02-14

Publications (1)

Publication Number Publication Date
US3456121A true US3456121A (en) 1969-07-15

Family

ID=20258943

Family Applications (1)

Application Number Title Priority Date Filing Date
US600237A Expired - Lifetime US3456121A (en) 1966-02-14 1966-12-08 Device for starting internal combustion engines

Country Status (7)

Country Link
US (1) US3456121A (pl)
BE (1) BE690373A (pl)
CH (1) CH454536A (pl)
DE (1) DE1563108A1 (pl)
IS (1) IS1604A7 (pl)
NL (1) NL6700932A (pl)
SE (1) SE326601B (pl)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992335A (en) * 1960-02-08 1961-07-11 Boucher Antonio Device for automatically starting and stopping internal combustion engines in cold weather
US3248555A (en) * 1963-07-26 1966-04-26 Robert Gerelick Automatic engine starter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2992335A (en) * 1960-02-08 1961-07-11 Boucher Antonio Device for automatically starting and stopping internal combustion engines in cold weather
US3248555A (en) * 1963-07-26 1966-04-26 Robert Gerelick Automatic engine starter

Also Published As

Publication number Publication date
CH454536A (de) 1968-04-15
BE690373A (pl) 1967-05-02
SE326601B (pl) 1970-07-27
NL6700932A (pl) 1967-08-15
DE1563108A1 (de) 1969-11-27
IS1604A7 (is) 1966-12-15

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