FR2474590A1 - Vehicle engine with power take=off - has automatic fuel changeover with solenoid energised via contact of relay - Google Patents

Vehicle engine with power take=off - has automatic fuel changeover with solenoid energised via contact of relay Download PDF

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Publication number
FR2474590A1
FR2474590A1 FR8002044A FR8002044A FR2474590A1 FR 2474590 A1 FR2474590 A1 FR 2474590A1 FR 8002044 A FR8002044 A FR 8002044A FR 8002044 A FR8002044 A FR 8002044A FR 2474590 A1 FR2474590 A1 FR 2474590A1
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FR
France
Prior art keywords
relay
fuel
power take
change
gearbox
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.)
Granted
Application number
FR8002044A
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French (fr)
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FR2474590B1 (en
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Individual
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Individual
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.)
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Publication date
Application filed by Individual filed Critical Individual
Priority to FR8002044A priority Critical patent/FR2474590A1/en
Publication of FR2474590A1 publication Critical patent/FR2474590A1/en
Application granted granted Critical
Publication of FR2474590B1 publication Critical patent/FR2474590B1/fr
Granted 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0602—Control of components of the fuel supply system
    • F02D19/0613—Switch-over from one fuel to another
    • F02D19/0618—Switch-over from one fuel to another depending on the engine's or vehicle's position, e.g. on/off road or proximity to a harbor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0673—Valves; Pressure or flow regulators; Mixers
    • F02D19/0676—Multi-way valves; Switch-over valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0684—High pressure fuel injection systems; Details on pumps, rails or the arrangement of valves in the fuel supply and return systems
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Abstract

The fuel pump (8) supplying an injection pump (12) can take fuel from either of two tanks (1,2). The connection is changed over by a solenoid valve (7,21). The solenoid (21) is energised through the contact of a relay (20). The circuit to the relay contains one switch (19) operated by the vehicle brake pressure and a second switch (25) operated by the gearbox. The fuel is thus automatically changed when the vehicle stops and the engine is used to drive machinery the power take off. To avoid mixing the fuels the excess fuel from the injection pump (12) is returned upstream (17) of the delivery pump (8).

Description

La présente invention concerne les cirquits d'alimentation des moteurs uniques des véhicules à usages speciaux, équipés d'engins de travail. The present invention relates to the power supply circuits of the single engines of special purpose vehicles, equipped with working machines.

Les engins de travail,installés sur des chassis porteurs courants sont entrainés par le moteur unique du véhicule, soit par l'intermédiaire d'une boite de transfert,soit par l'intermédiaire d'une prise de force. L'existence d'un seul moteur, alimenté à partir d'un seul réservoir, rend difficile le relevé des quantités des carburants utilisés pour la partie travail et la partie deplacemen.t) > et rend impossible l'utilisation de carburants differents. The work machines, installed on current load-bearing chassis are driven by the vehicle's single engine, either via a transfer box, or via a PTO. The existence of a single engine, supplied from a single tank, makes it difficult to record the quantities of fuels used for the work part and the displacement part) and makes it impossible to use different fuels.

Le dispositif selon l'invention permet de relever avec précision les quantites des carburants utilisés au moment du remplissage des deux réservoirs et permet l'utilisation de carburants differents. le dispositif permet d'alimenter le moteur du véhicule à partir du réservoir 2 pour la partie déplacement, mais j'partir du réservoir 1 pour la partie travail.le dispositif comporte une électrovanne de changement qui relie alternativement le réservoir 2 ou le réservoir 1 a la pompe de gavage de la pompe d'injection.Pour éviter un mélange du carburant par le retour de la pompe d'injection celui-ci est menez en amont de la pompe de gavage.la bobine de ltélectrovanae est mise sous tension par un manocontact installé dans la conduite pneumatique d'enclenchement de la boite de transfert ou par un contact fin-de-course actionné par le levier de commande mécanique si la boite est commandé ainsi.Dans les cas ou l'engin de travail est entrainé par l'intermédiaire d'une prise de force, la bobine de lBélectro- vanne est alimenté par le contact d'un pressostat,installé dans la conduite pneumatique d'enclenchement du frein de stationnement,en serie avec un contact,installe sur ou dans la boite de vitesse,fermé si la boite est au point mort. The device according to the invention makes it possible to accurately record the quantities of fuels used when filling the two tanks and allows the use of different fuels. the device makes it possible to supply the vehicle engine from the tank 2 for the displacement part, but I start from the tank 1 for the work part. the device comprises a change solenoid valve which alternately connects the tank 2 or the tank 1a the booster pump of the injection pump. To avoid mixing of the fuel by the return of the injection pump, this is carried upstream of the booster pump. The solenoid coil is energized by a pressure switch installed in the pneumatic interlocking line of the transfer box or by a limit switch actuated by the mechanical control lever if the box is thus controlled. In cases where the working machine is driven by the Via a power take-off, the solenoid valve coil is supplied by the contact of a pressure switch, installed in the pneumatic line for engaging the parking brake, in series with a contact, installed on or in the gearbox.speed, closed if the gearbox is in neutral.

le dessin annexé est un schema du cirquit hydraulique et électrique du dispositif. the attached drawing is a diagram of the hydraulic and electrical circuit of the device.

Le dispositif représenté comporte un réservoir du- car- burant destiné à êtse utilisé en position "travail" 1, un réservoir du carburant destiné à être utilisé en position "route" 2, la crépine-pré-filtre du carburant "route" 3, la crépine-pré-filtre du carburant "travail" 4,la conduite du carburant nroute"5different en diamètre de la conduite du carburant "travail" 6, le corps de l'électrovanne de change- ment 7,, le bac translucide 8, la conduite commun du carburant 9, la pompe de gavage 10 alimentant la pompe d'injec- tion 12 en travers du filtra à carburants commun 11. le retour des injecteurs 13 est mené par la conduite du retour 14 dans le réservoir du carburant "travail" 1. le clapet. de tarage 15 assure une bonne pression de gavage de la pompe d' injection. Le retour de la pompe d'injection 16 est mené en amont de la pompe de gavage 10,ainsi est évité tout mélange ou pollution d'un carburant par l'autre.le fusible la protége le circuit électrique. Le relais de changement 20 amplifie le signal délivré par le contact du pressostat 19 ou par le contact de la boite de vitesse 25 en serie avec le contact du pressostat 19 installé dans la conduite du frein de stationnement du véhicule. le contact inverseur du relais de changement 20 alimente la lampe temoin. de la position route 23 si la bobine du relais de changement n'est pas ali- ment. Si la bobine du relais de changement 20 est alimenté la bobine de l'électrovanne de changement 21 et la lampe témoin de la position "travail" 22 sont alimentées. The device shown comprises a fuel tank intended to be used in the "working" position 1, a fuel tank intended to be used in the "driving" position 2, the "road" fuel strainer 3, the “working” fuel strainer-pre-filter 4, the nroute “5” fuel line in diameter of the “working” fuel line 6, the body of the change-over solenoid valve 7, the translucent tank 8, the common fuel line 9, the booster pump 10 supplying the injection pump 12 through the common fuel filter 11. the return of the injectors 13 is led by the return pipe 14 into the fuel tank "work "1. the calibration valve 15 ensures a good boosting pressure of the injection pump. The return of the injection pump 16 is led upstream of the boosting pump 10, thus any mixing or pollution of fuel by the other. the fuse protects the electrical circuit. The 20 am change relay the signal delivered by the contact of the pressure switch 19 or by the contact of the gearbox 25 in series with the contact of the pressure switch 19 installed in the vehicle's parking brake line. the change-over relay changeover contact 20 supplies the control lamp. from the road position 23 if the change relay coil is not in feed. If the coil of the change relay 20 is supplied the coil of the change solenoid valve 21 and the indicator lamp for the "working" position 22 are supplied.

le dispositif, objet. de l'invention, peut être installé sur toutes les véhicules porteurs d'engins montés ou il est souhaitable d'utiliser des carburants differents selon la position "travail" ou "route't L'utilisation du moteur unique pour lentrainement de l'engin de travail se rencontre dans les grues-automotrices, dans les pompes à béton-automotrices, dans les camions-bétonières, les camions-nacelles,dans les véhicules citerne-hydrocureurs, dans les. tracteurs des, miter nes des pulverulants etc.  the device, object. of the invention, can be installed on all vehicles carrying mounted machinery or it is desirable to use different fuels depending on the "work" or "route" position. The use of the single engine for training the machine of work is encountered in self-propelled cranes, in self-propelled concrete pumps, in concrete trucks, bucket trucks, in tanker-sewer vehicles, in tractors, miter n of pulverulants etc.

Claims (2)

REVENDI CAoei ONS  REVENDI CAoei ONS l.Dispositif automatique de changement d'alimentation d'un moteur unique en carburants differents dans les vShi- cules à usages speciaux, comportant. un relais de changement (20), une électrovanne de changement (7) et le retour de la pompe d'injection (16) mené en amont de la pompe de gavage ( 10), caractérisé par l'enclenchement du relais de changement (20), à laide d'un pressostat, installé dans la conduite pneumatiqué de commande d'une boîte de transfert. 1. Automatic device for changing the supply of a single engine to different fuels in special purpose vehicles, comprising. a change relay (20), a change solenoid valve (7) and the return of the injection pump (16) led upstream of the booster pump (10), characterized by the engagement of the change relay (20 ), using a pressure switch, installed in the pneumatic control line of a transfer case. 2.Dispositif selon la revendication 1, caractérisé par l'enclenchement du relais de changement (20) par un contact fin-de-course, actionne par le levier mécanique de commande de la boite de transfert. 2. Device according to claim 1, characterized by the engagement of the change relay (20) by a limit switch, actuated by the mechanical control lever of the transfer box. 30Dispositif selon la revendication 1, caractérisé par l'enclenchement du relais de changement(20). par un contact pressostat monté dans la conduite du frein de stationnement, en serie avec un contact,monté dans ou sur la boite de vitesse, fermé si la boite est au point mort.  30A device according to claim 1, characterized by the engagement of the change relay (20). by a pressure switch contact mounted in the parking brake line, in series with a contact, mounted in or on the gearbox, closed if the gearbox is in neutral.
FR8002044A 1980-01-28 1980-01-28 Vehicle engine with power take=off - has automatic fuel changeover with solenoid energised via contact of relay Granted FR2474590A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8002044A FR2474590A1 (en) 1980-01-28 1980-01-28 Vehicle engine with power take=off - has automatic fuel changeover with solenoid energised via contact of relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8002044A FR2474590A1 (en) 1980-01-28 1980-01-28 Vehicle engine with power take=off - has automatic fuel changeover with solenoid energised via contact of relay

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FR2474590A1 true FR2474590A1 (en) 1981-07-31
FR2474590B1 FR2474590B1 (en) 1982-03-05

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510660A1 (en) * 1981-07-29 1983-02-04 Stetter Sa Two-fuel reservoir system for concrete mixer trucks - uses a solenoid valve actuated by contacts on gear selector and parking brake to provide fuel source changeover
WO1988001346A1 (en) * 1986-08-20 1988-02-25 Whitehead Engineered Products, Inc. In-tank fuel pump assembly for fuel-injected engines

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2940435A (en) * 1957-03-07 1960-06-14 Fred A Nemec Dual fuel system
US2984229A (en) * 1956-12-05 1961-05-16 Alco Products Inc Multi-fuel supply system
GB986166A (en) * 1962-11-06 1965-03-17 Fred Gresty Fuel supply system
FR2220679A1 (en) * 1973-03-07 1974-10-04 Servequip Fuel control system for I.C. engine - supplies light or heavy fuel, according to use of engine, to injection pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2984229A (en) * 1956-12-05 1961-05-16 Alco Products Inc Multi-fuel supply system
US2940435A (en) * 1957-03-07 1960-06-14 Fred A Nemec Dual fuel system
GB986166A (en) * 1962-11-06 1965-03-17 Fred Gresty Fuel supply system
FR2220679A1 (en) * 1973-03-07 1974-10-04 Servequip Fuel control system for I.C. engine - supplies light or heavy fuel, according to use of engine, to injection pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510660A1 (en) * 1981-07-29 1983-02-04 Stetter Sa Two-fuel reservoir system for concrete mixer trucks - uses a solenoid valve actuated by contacts on gear selector and parking brake to provide fuel source changeover
WO1988001346A1 (en) * 1986-08-20 1988-02-25 Whitehead Engineered Products, Inc. In-tank fuel pump assembly for fuel-injected engines

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Publication number Publication date
FR2474590B1 (en) 1982-03-05

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