US3680656A - Lock control device for a compression-ignited internal combustion engine - Google Patents

Lock control device for a compression-ignited internal combustion engine Download PDF

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Publication number
US3680656A
US3680656A US3680656DA US3680656A US 3680656 A US3680656 A US 3680656A US 3680656D A US3680656D A US 3680656DA US 3680656 A US3680656 A US 3680656A
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US
United States
Prior art keywords
coil
engine
switch
electromagnet
control device
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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
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English (en)
Inventor
Andre Leger
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.)
Automobiles Peugeot SA
Renault SA
Original Assignee
Automobiles Peugeot SA
Renault SA
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Publication date
Application filed by Automobiles Peugeot SA, Renault SA filed Critical Automobiles Peugeot SA
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Publication of US3680656A publication Critical patent/US3680656A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5889—For automotive vehicles
    • Y10T70/5956—Steering mechanism with switch

Definitions

  • ABSTRACT A control device for preventing the return of the contact key of the vehicle to its off position so long as the engine of the vehicle operates which would otherwise constitute a serious danger bearing in mind that the key simultaneously actuates an antitheft device which is usually employed to lock the steering gear of the vehicle.
  • the device comprises locking means controlled by an electromagnet whose coil is connected in parallel to the battery charging circuit indicator.
  • This locking of the key actuating the switch is conventionally achieved by a mechanical interconnection between the stop knob and the switch, but such a connection is rather complex and does not allow the stop knob to be placed in the optimum position relative to the injection pump.
  • Electromechanical devices are also known in which the moving element or barrel of the rotary switch is locked in its on position by a finger element integral with the moving equipment of an electromagnet actuated in the direction for unlocking when its coil is fed with current through a contact responsive to the pressure of the oil lubricating the engine, the contact being closed when the pressure is insufficient.
  • the last-mentioned device has the following drawback, owing to inaccuracy in'the operation of the oil pressure contact and in particular to its response time which varies with the fluidity of the oil the rise in the oil pressure is not instantaneous as soon as the engine is started, so that it is possible to start the engine and return the switch to the off position before the locking is achieved.
  • the vehicle can consequently be driven with the steering column lockedin position.
  • An object of the present invention is to remedy these drawbacks of known arrangements.
  • the invention provides a compression-ignited internal combustion engine comprising a switch having three positions, namely an on, an off and a starting position, actuated by a key and associated with an antitheft device, an electromagnetically controlled locking means locking the switch and the key in the ,on position so long as the engine operates, a manual control means for closing the fuel supply circuit of the engine and stopping the engine, a battery, and a charging circuit for said battery including an alternator and a charging indicator, wherein said locking means is actuated by a coil connected in parallel with said indicator in said battery charging circuit.
  • the charging indicator which lights up when the contact switch is turned on and the engine is not operating, goes out as soon as the engine starts to operate. Consequently, with the above-defined arrangement, the switch .and the key are locked in the required position, t hat is, the on position as soon as the engine starts and so long as the engine has not been stopped by means of the stop knob provided for this purpose. Further, the arrangement is particularly simple and does not greatly increase the cost of the device.
  • FIG. I is a circuit diagram of the control device according-to the. invention.
  • FIG. 2 is a diagram of a modification of the device according to the invention.
  • FIG. 3 is a diagram of another modification in which an additional safety device is associated with the stop knob.
  • FIG. 1 a control device according to the invention for a pressure-ignited internal combustion engine.
  • FIG. 1 shows a battery 1 and its charging circuit.
  • the latter comprises an alternator 2, a regulator or governor 3, an exciter 4, a diode 5 and a charging indicator I
  • a switch 70f conventional design connected to a rotary barrel 8 is associated with an antitheft device and comprises at least one off position 9, an on contact l0 and a starting contact 11. For reasons of convenience the barrel 8 has also been shown in the bottom part of FIG. 1.
  • a coil 12 of an electromagnet 13 Connected in parallel with the charging indicator or lamp 6 is a coil 12 of an electromagnet 13 whose moving part 14 terminates in a finger element 15 which bears againsbthe barrel 8 under the effect of a spring 16 when the coil 2 is not carrying current, that is, when the alternator is charging or when the switch 7 is in its off position.
  • a recess 17 in the barrel 8 is on the axis of the finger element 15 when the switch 7 is placed in the on position.
  • the finger element 15 When the switch 7 is in its off position, the finger element 15 is urged against the barrel 8 but is outside the recess .17. Therefore the barrel is not held stationary and the charging indicator lamp 6 is extinguished. if the switch is brought to its on position (as shown in the drawing), with the motor stationary the charging indicator 6 and the coil 12 are supplied with current, the finger element 15 moves rearwardly and it is possible to turn the keyand the barrel 8 so as to bring the switch 7 to the. starting position 11. As soon as the engine starts to operate, the alternator 2 supplies immediately-the two terminals of the coil 12 with the -same voltage. The finger element 15, biased by the spring 16, then engages in the recess 17 of the barrel 8 as soon as the switch 7 has left the starting position and has returned to the on position. Consequently, it is no longer possible to return the key and the switch to their position of rest.
  • the coil 12 is once more supplied with current and unlocks the barrel 8 and it is then possible to once'more actuate the starter.
  • the alternator When the engine is stopped purposely by a manual action on the stop knob (not shown), the alternator is also stopped and this causes current to be supplied to the coil 12 which unlocks the barrel. It is then possible to return the switch 7 to its off position.
  • FIG. 2 shows a modification of the invention in which the coil 18 connected in parallel with the charging indicator or lamp 6 indirectly actuates the finger element 15 through a relay 19 which actuates a switch 20 connected in series with the electromagnet coil 13.
  • the other components of the device are identical to those of the embodiment shown in FIG. 1 and have the same reference characters.
  • the electromagnet coil 12 can furthermore be connected in the known manner in series with an oil pressure contact 21 and in parallel with an oil pressure indicator 22, which affords all the advantages of the first embodiment with an additional safety device operative in the event of breakdown of the alternator.
  • FIG. 3 shows the stop knob 23 which acts in the known manner on a closing valve element 24 of the fuel conduit 25.
  • a spring 26 biases the knob to the position in which the conduit 25 is open.
  • the knob 23 can be held stationary in the stop position by a finger element 27 biased by a spring 28, this finger element being withdrawable under the action of a coil 29 connected between the starting contact 1 l and ground.
  • a control device for a compression-ignited internal combustion engine comprising an electrical switch h vin ee ositions, name] on, an off and an engiiie a ing gosrtlon, a key a s iated with an antitheft device for shifting said switch to said positions, electromagnetically controlledlocking means for locking said switch and said key in said on position so long as the engine operates, manual control means shiftable to a position for closing a fuel supply circuit of the engine and stopping the engine, a battery, a charging circuit for the battery comprising an alternator and a charging indicator, and actuating means comprising a coil connected in parallel with said indicator in said battery charging circuit for actuating said locking means.
  • said actuating means comprise an electromagnet having said coil and a moving element shiftable by said coil and connected to said locking means.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
US3680656D 1970-04-02 1971-03-22 Lock control device for a compression-ignited internal combustion engine Expired - Lifetime US3680656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7011955A FR2086591A5 (enrdf_load_stackoverflow) 1970-04-02 1970-04-02

Publications (1)

Publication Number Publication Date
US3680656A true US3680656A (en) 1972-08-01

Family

ID=9053324

Family Applications (1)

Application Number Title Priority Date Filing Date
US3680656D Expired - Lifetime US3680656A (en) 1970-04-02 1971-03-22 Lock control device for a compression-ignited internal combustion engine

Country Status (4)

Country Link
US (1) US3680656A (enrdf_load_stackoverflow)
DE (1) DE2104335A1 (enrdf_load_stackoverflow)
FR (1) FR2086591A5 (enrdf_load_stackoverflow)
GB (1) GB1345791A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859828A (en) * 1972-03-11 1975-01-14 Tokai Rika Co Ltd Lock means for the steering handle shaft of an automobile
US4119171A (en) * 1975-02-24 1978-10-10 Societe d'Exploitation des Brevets Neiman SA. Safety anti-theft device for vehicles having a diesel engine
US4313519A (en) * 1978-01-17 1982-02-02 Neiman S.A. Vehicle safety lock
US20030233857A1 (en) * 2002-06-20 2003-12-25 Jin-Sang Chung Burglarproof locking device for a vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021913A (en) * 1960-07-25 1962-02-20 Ouimet Jean Automobile transmission lever locking device
GB1056127A (en) * 1963-01-12 1967-01-25 Oscar Adolf Wallmark An improvement in anti-theft devices for vehicles driven by means of diesel engines
US3569930A (en) * 1967-09-23 1971-03-09 Nissan Motor Theft-preventing device for automobiles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021913A (en) * 1960-07-25 1962-02-20 Ouimet Jean Automobile transmission lever locking device
GB1056127A (en) * 1963-01-12 1967-01-25 Oscar Adolf Wallmark An improvement in anti-theft devices for vehicles driven by means of diesel engines
US3569930A (en) * 1967-09-23 1971-03-09 Nissan Motor Theft-preventing device for automobiles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3859828A (en) * 1972-03-11 1975-01-14 Tokai Rika Co Ltd Lock means for the steering handle shaft of an automobile
US4119171A (en) * 1975-02-24 1978-10-10 Societe d'Exploitation des Brevets Neiman SA. Safety anti-theft device for vehicles having a diesel engine
US4313519A (en) * 1978-01-17 1982-02-02 Neiman S.A. Vehicle safety lock
US20030233857A1 (en) * 2002-06-20 2003-12-25 Jin-Sang Chung Burglarproof locking device for a vehicle
US7028515B2 (en) * 2002-06-20 2006-04-18 Hyundai Motor Company Burglarproof locking device for a vehicle

Also Published As

Publication number Publication date
DE2104335A1 (de) 1971-10-14
GB1345791A (en) 1974-02-06
FR2086591A5 (enrdf_load_stackoverflow) 1971-12-31

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