EP0140808A1 - Safety device for a diesel engine - Google Patents
Safety device for a diesel engine Download PDFInfo
- Publication number
- EP0140808A1 EP0140808A1 EP84450022A EP84450022A EP0140808A1 EP 0140808 A1 EP0140808 A1 EP 0140808A1 EP 84450022 A EP84450022 A EP 84450022A EP 84450022 A EP84450022 A EP 84450022A EP 0140808 A1 EP0140808 A1 EP 0140808A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electromagnet
- axis
- safety device
- diesel engine
- supply
- 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.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
- F02M63/022—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine by acting on fuel control mechanism
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
- F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Definitions
- the present invention relates to a safety device for a diesel engine making it possible to act on the injection pump in order to interrupt the supply during an abnormal operation of the engine or dependent members.
- the device which is the subject of the invention is characterized in that it comprises a sliding axis connected at one end to the supply interruption rod of the injection pump, said axis slides and is held in a suitable fixed sleeve according to its section, said sheath is provided with a recess in which is held a movable element bearing on the core of an electromagnet fixed on said sheath, the sliding axis is provided with a notch suitable for the movable element so as to allow when the coil is energized its blocking in a position, while during the interruption of the supply of the coil during an abnormal operation of the motor or dependent members, detected by probes, the blocking element releases the sliding axis which, by means of a spring, causes the displacement of a rod or cable connecting said axis to the supply interruption rod of the injection pump in order to cause the engine to stop.
- the safety device comprises an axis 1 kept sliding in a sheath 2 of section suitable for the section of said axis 1, said sheath 2 is fixed to a support (not shown) which may be the motor, the chassis or an element arbitrary, on this is disposed an electromagnet 3 provided with a plunger core 4, pressing when the electromagnet is supplied with current on a ball 5 or a needle 6 as shown in FIG. 3 so as to maintain axis 1 by means of an appropriate notch 7 or 8 arranged on the latter when arming and / or starting the engine.
- a recess 10 makes it possible to receive the end of a spring 11 connected at its other end 12 to the sheath 2, the latter having the function of causing the displacement of the axis 1 during an abnormal operation of the motor or dependent organs, and this by the interruption of the electrical supply of the electromagnet which releases the ball 5 or the needle 6 of the notch 7 or 8 causing by means of a rod or cable 13 displacement of the pull-out rod 15 for interrupting the injection pump 14.
- the axis 1 can be connected by a rod 17 to the throttle or stop puller of the dashboard not shown, the rod 17 being able to allow, in addition to stopping, the arming of the device during restarting the engine.
- the ends 16 or 9 can be extended by a pusher, the latter allowing manual resetting of the device independent of the stop pull or gas lever.
- the device can be mounted integrated into the engine speed variation system and accompanies it during a change of speed or be mounted separately.
- the electrical supply to the coil of the electromagnet 3 is effected by an input 18 and output 19 circuit, on the input circuit 18 a light 20 is arranged, the latter having the function of signaling a fault while serving as a resistance in order to avoid a short circuit at the terminals of the power supply when the coil of the electromagnet 3 is short-circuited by means of a contact 21 placed on a secondary line 22 connecting the circuits 18 and 19, the action of the contact 21 is controlled in a known manner by means of probes not shown arranged on the motor or losing elements and linked to said contact.
- the electrical circuit can advantageously be replaced by an electronic circuit by which it is possible to memorize the origin of the fault for example, neutralization of certain probes, etc.
- the device which is the subject of the invention can likewise be advantageously used for resetting a circuit breaker for example.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- High-Pressure Fuel Injection Pump Control (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
La présente invention concerne un dispositif de sécurité pour moteur diesel permettant d'agir sur la pompe à injection afin d'interrompre l'alimentation lors d'un fonctionnement anormal du moteur ou organes dépendants.The present invention relates to a safety device for a diesel engine making it possible to act on the injection pump in order to interrupt the supply during an abnormal operation of the engine or dependent members.
Le dispositif objet de l'invention est caractérisé en ce qu'il comporte un axe coulissant relié en une exrémité à la tirette d'interruption d'alimentation de la pompe à injection, ledit axe coulisse et est maintenu dans un fourreau fixe approprié selon sa section, ledit fourreau est doté d'un évidement dans lequel est maintenu un élément mobile en appui sur le noyau d'un électro-aimant fixé sur ledit fourreau, l'axe coulissant est doté d'une encoche appropriée à l'élément mobile de sorte à permettre lorsque la bobine est alimentée son blocage à une position, tandis que lors de l'interruption de l'alimentation de la bobine au cours d'un fonctionnement anormal du moteur ou organes dépendants, détecté par sondes, l'élément de blocage libère l'axe coulissant qui par l'intermédiaire d'un ressort provoque le déplacement d'une tringle ou câble reliant ledit axe à la tirette d'interruption d'alimentation de la pompe à injection afin de provoquer l'arrêt du moteur.The device which is the subject of the invention is characterized in that it comprises a sliding axis connected at one end to the supply interruption rod of the injection pump, said axis slides and is held in a suitable fixed sleeve according to its section, said sheath is provided with a recess in which is held a movable element bearing on the core of an electromagnet fixed on said sheath, the sliding axis is provided with a notch suitable for the movable element so as to allow when the coil is energized its blocking in a position, while during the interruption of the supply of the coil during an abnormal operation of the motor or dependent members, detected by probes, the blocking element releases the sliding axis which, by means of a spring, causes the displacement of a rod or cable connecting said axis to the supply interruption rod of the injection pump in order to cause the engine to stop.
D'autres caractéristiques et avantages de l'invention ressortiront plus clairement de la description qui va suivre faite en regard des dessins joints donnés à titre d'exemple non limitatif, où :
- - la figure 1 est un mode de réalisation du dispositif de sécurité en marche,
- - la figure 2, le dispositif de sécurité représenté figure 1, en interruption de fonctionnement,
- - la figure 3, des variantes de réalisation du dispositif de sécurité,
- - la figure 4, le schéma de principe du circuit électrique en fonctionnement normal,
- - la figure 5, le schéma de principe du circuit électrique en fonctionnemem anormal.
- FIG. 1 is an embodiment of the safety device in operation,
- FIG. 2, the safety device shown in FIG. 1, when the operation is interrupted,
- FIG. 3, alternative embodiments of the security device,
- - Figure 4, the block diagram of the electrical circuit in normal operation,
- - Figure 5, the block diagram of the electrical circuit in abnormal operation.
Tel que représenté figure 1, le dispositif de sécurité comporte un axe 1 maintenu coulissant dans un fourreau 2 de section appropriée à la section dudit axe 1, ledit fourreau 2 est fixé à un support non représenté pouvant être le moteur, le chassis ou un élément quelconque, sur celui-ci est disposé un électro-aimant 3 doté d'un noyau plongeur 4, s'appuyant lorsque l'électro-aimant est alimenté en courant sur une bille 5 ou un pointeau 6 comme représenté figure 3 de sorte à maintenir l'axe 1 au moyen d'une encoche appropriée 7 ou 8 aménagée sur ce dernier lors de l'armement et/ou mise en marche du moteur.As shown in Figure 1, the safety device comprises an axis 1 kept sliding in a sheath 2 of section suitable for the section of said axis 1, said sheath 2 is fixed to a support (not shown) which may be the motor, the chassis or an element arbitrary, on this is disposed an electromagnet 3 provided with a plunger core 4, pressing when the electromagnet is supplied with current on a
En l'extrémité 9 de l'axe 1 un évidement 10 permet de recevoir l'extrémité d'un ressort 11 relié en son autre extrémité 12 au fourreau 2, celui-ci ayant pour fonction de provoquer le déplacement de l'axe 1 lors d'un fonctionnement anormal du moteur ou organes dépendants, et ce par l'interruption de l'alimentation électrique de l'électro-aimant qui libère la bille 5 ou le pointeau 6 de l'encoche 7 ou 8 provoquant au moyen d'une tringle ou câble 13 le déplacement de la tirette 15 d'interruption d'alimentation de la pompe à injection 14.At the end 9 of the axis 1 a
En son extrémité 16, l'axe 1 peut être relié par une tringle 17 à la manette des gaz ou tirette de stop du tableau de bord non représenté, la tringle 17 pouvant permettre outre l'arrêt, l'armement du dispositif lors d'une remise en marche du moteur.At its
Sans sortir du cadre de l'invention, les extrémités 16 ou 9 peuvent être prolongées par un poussoir, celui-ci permettant le réarmement manuel du dispositif indépendant de la tirette de stop ou manette de gaz. Compte tenu de ces variantes, il va de soi que le dispositif peut être monté intégré au système de variations de vitesse du moteur et l'accompagne lors d'un changement de régime ou être monté de manière séparée.Without departing from the scope of the invention, the
Tel que représenté figures 4 et 5, l'alimentation électrique de la bobine de l'électro-aimant 3 s'effectue par un circuit d'entrée 18 et de sortie 19, sur le circuit d'entrée 18 un voyant 20 est disposé, celui-ci ayant pour fonction de signaler un défaut tout en servant de résistance afin d'éviter un court-circuit aux bornes de l'alimentation lorsque la bobine de l'électro-aimant 3 est court- circuitée au moyen d'un contact 21 placé sur une ligne secondaire 22 reliant les circuits 18 et 19, l'action du contact 21 est commandée de manière connue au moyen de sondes non représentées disposées sur le moteur ou éléments déperdants et reliées audit contact.As shown in FIGS. 4 and 5, the electrical supply to the coil of the electromagnet 3 is effected by an
Selon une variante non représentée, le circuit électrique peut avantageusement être remplacé par un circuit électronique par lequel il est possible de mémoriser l'origine du défaut par exemple, neutralisation de certaines sondes, etc..According to a variant not shown, the electrical circuit can advantageously be replaced by an electronic circuit by which it is possible to memorize the origin of the fault for example, neutralization of certain probes, etc.
Le dispositif objet de l'invention peut de même être avantageusement utilisé pour la remise à zéro d'un disjoncteur par exemple.The device which is the subject of the invention can likewise be advantageously used for resetting a circuit breaker for example.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8315037A FR2552162B1 (en) | 1983-09-20 | 1983-09-20 | SAFETY DEVICE FOR DIESEL ENGINE |
FR8315037 | 1983-09-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0140808A1 true EP0140808A1 (en) | 1985-05-08 |
Family
ID=9292424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84450022A Withdrawn EP0140808A1 (en) | 1983-09-20 | 1984-09-20 | Safety device for a diesel engine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0140808A1 (en) |
ES (1) | ES536108A0 (en) |
FR (1) | FR2552162B1 (en) |
PT (1) | PT79234B (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2013971A1 (en) * | 1968-07-30 | 1970-04-10 | Daimler Benz Ag | |
DE2042988A1 (en) * | 1970-08-29 | 1972-03-02 | Rieger, Willy, Dipl.-Ing., 8232 Bayerisch Gmain | Device for monitoring and automatic shutdown of diesel engines |
FR2228945A1 (en) * | 1973-05-11 | 1974-12-06 | Valmet Oy | |
FR2296764A1 (en) * | 1974-12-31 | 1976-07-30 | Fondasol Tech | Safety shut down circuit for internal combustion engine - cuts out ignition if overheating occurs or oil pressure fails |
FR2316439A1 (en) * | 1975-07-04 | 1977-01-28 | Devalle Michel | Diesel engine driven pump safety circuit - has sensors energising solenoid to operate fuel cut-off mechanism |
FR2338388A1 (en) * | 1976-01-16 | 1977-08-12 | Ferrari Carlo | KEY-ACTED DEVICE FOR STARTING AND STOPPING DIESEL ENGINES |
-
1983
- 1983-09-20 FR FR8315037A patent/FR2552162B1/en not_active Expired
-
1984
- 1984-09-19 PT PT7923484A patent/PT79234B/en unknown
- 1984-09-20 ES ES536108A patent/ES536108A0/en active Granted
- 1984-09-20 EP EP84450022A patent/EP0140808A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2013971A1 (en) * | 1968-07-30 | 1970-04-10 | Daimler Benz Ag | |
DE2042988A1 (en) * | 1970-08-29 | 1972-03-02 | Rieger, Willy, Dipl.-Ing., 8232 Bayerisch Gmain | Device for monitoring and automatic shutdown of diesel engines |
FR2228945A1 (en) * | 1973-05-11 | 1974-12-06 | Valmet Oy | |
FR2296764A1 (en) * | 1974-12-31 | 1976-07-30 | Fondasol Tech | Safety shut down circuit for internal combustion engine - cuts out ignition if overheating occurs or oil pressure fails |
FR2316439A1 (en) * | 1975-07-04 | 1977-01-28 | Devalle Michel | Diesel engine driven pump safety circuit - has sensors energising solenoid to operate fuel cut-off mechanism |
FR2338388A1 (en) * | 1976-01-16 | 1977-08-12 | Ferrari Carlo | KEY-ACTED DEVICE FOR STARTING AND STOPPING DIESEL ENGINES |
Also Published As
Publication number | Publication date |
---|---|
PT79234A (en) | 1984-10-01 |
FR2552162A1 (en) | 1985-03-22 |
PT79234B (en) | 1986-08-28 |
FR2552162B1 (en) | 1988-07-01 |
ES8505449A1 (en) | 1985-05-16 |
ES536108A0 (en) | 1985-05-16 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE DE GB IT NL |
|
17P | Request for examination filed |
Effective date: 19851106 |
|
17Q | First examination report despatched |
Effective date: 19860912 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19870122 |