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EP0019523A1 - Compact electricity generation set - Google Patents

Compact electricity generation set Download PDF

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Publication number
EP0019523A1
EP0019523A1 EP80400626A EP80400626A EP0019523A1 EP 0019523 A1 EP0019523 A1 EP 0019523A1 EP 80400626 A EP80400626 A EP 80400626A EP 80400626 A EP80400626 A EP 80400626A EP 0019523 A1 EP0019523 A1 EP 0019523A1
Authority
EP
European Patent Office
Prior art keywords
engine
alternator
set according
generator set
casing
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
EP80400626A
Other languages
German (de)
French (fr)
Other versions
EP0019523B1 (en
Inventor
Claude Guedj
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.)
MANUTENTION AUTOMATISMES SERVITUDES
Original Assignee
MANUTENTION AUTOMATISMES SERVITUDES
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 MANUTENTION AUTOMATISMES SERVITUDES filed Critical MANUTENTION AUTOMATISMES SERVITUDES
Priority to AT80400626T priority Critical patent/ATE6089T1/en
Publication of EP0019523A1 publication Critical patent/EP0019523A1/en
Application granted granted Critical
Publication of EP0019523B1 publication Critical patent/EP0019523B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00—Pumping cooling-air or liquid coolants
    • F01P5/02—Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • F01P5/06—Guiding or ducting air to, or from, ducted fans
    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F02B63/044—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators the engine-generator unit being placed on a frame or in an housing
    • F02B2063/045—Frames for generator-engine sets
    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F02B63/044—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators the engine-generator unit being placed on a frame or in an housing
    • F02B63/047—Movable engine-generator combinations on wheels

Definitions

  • the present invention relates to a compact generator intended in particular, but not exclusively, for maintenance operations on aircraft.
  • the present invention relates to a compact generator which allows easy air circulation in a limited air volume.
  • the compact generator comprising, inside a casing mounted on a movable chassis, an alternator coupled to an engine, is characterized in that a ventilation turbine driven by the engine is disposed between the alternator and said engine to create a forced circulation of cooling air over the exhaust manifolds.
  • FIGS. 1 and 2 it can be seen that the chassis 1 rests on the ground by means of a steerable front wheel train 2 and a rear wheel train 3.
  • the chassis 1 is monocoque and closed in its part upper by shells 4 advantageously in reinforced polyester, which makes it possible to save weight.
  • an alternator 5 mechanically coupled to a motor 6.
  • the cooling air is sucked in through an orifice 7 located at the rear of the group and discharged by hopper 8.
  • the alternator 5 preferably made of light alloy such as zamak
  • a battery 11 allows the group to start.
  • the engine 6 is an engine of the type used in the automobile industry and it is connected to an air filter 12 on the one hand and to a cooling circuit comprising a radiator 13, an expansion tank 14 and a circuit on the other hand, the gases burned by the engine being discharged through a pipe 15 connected to an exhaust pipe 16 placed at the bottom of the group.
  • a regulator 17 and a control box 18 of the alternator make it possible to control the voltage, the speed and the frequency of the current generated by the alternator.
  • On the chassis are also fixed different elements elements allowing the operation of the group such as the drawbar 19 and the coupling hook 20.
  • the alternator 5 and the engine 6 are aerodynamically connected by a pipe 21.
  • the air enters through a grid 22 located at the rear part of the alternator and, after passage of that -this arrives in a lantern 23 comprising a turbine (not shown) driven by the engine and which expels air in pipes 24 connected to distribution boxes 25 from which the air is expelled downwards as indicated by the arrows F 1 in FIG. 3.
  • a lantern 23 comprising a turbine (not shown) driven by the engine and which expels air in pipes 24 connected to distribution boxes 25 from which the air is expelled downwards as indicated by the arrows F 1 in FIG. 3.
  • the air subjected to the forced circulation cools the exhaust conductors and is discharged directly vertically outside the boxes 25.
  • the normal cooling circuit by fan and radiator thus obtains a better efficiency.
  • This forced circulation is, so to speak, mounted in parallel on the normal ventilation circuit which is symbolized in FIG. 4 by the arrows F 2 .
  • the normal ventilation circuit comprises, in addition to the ventilation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Control Of Eletrric Generators (AREA)
  • Inorganic Insulating Materials (AREA)
  • Glass Compositions (AREA)
  • Liquid Crystal Substances (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

1. Compact electricity generation set constituted, in the interior of a casing (4) mounted on a mobile chassis (1), by an alternator (5) coupled to an internal combustion engine (6) and having a principal cooling circuit for the engine including a fan and a radiator (13) and a secondary cooling circuit (21-25) for the alternator, characterised in that the said cooling circuits being of substantially parallel flow, the secondary circuit comprises a casing (21-23) surrounding the coupling, a ventilation fan located in the interior of the said casing (21-23) and driven by the engine (6) and located between the alternator (5) and the said engine (6) in such fashion as to effect forced circulation, and ducts (24) on manifold boxes (25) arranged on the sides of the engine and open at their lower portion.

Description

La présente invention a pour objet un groupe électrogène compact destiné en particulier, mais non exclusivement, aux opérations de maintenance sur les avions.The present invention relates to a compact generator intended in particular, but not exclusively, for maintenance operations on aircraft.

On sait que, lors des escales, les avions doivent subir un certain nombre de vérifications qui nécessitent la présence d'un groupe électrogène servant de source auxiliaire du courant électrique. Les groupes électrogènes actuellement utilisés sont lourds et encombrants. Or, il est souhaitable de disposer de source de courant électrique qui soit légère et compacte. Malheureusement, la réduction de dimensions des groupes électrogènes connus conduit à une mauvaise circulation de l'air de refroidissement et la température à l'intérieur du carter du groupe proprement dit atteint des valeurs incompatibles avec la proximité des quantités importantes de carburant volatiles chargé dans les avions. En fait, pour des raisons de sécurité, il est souhaitable que la température interne du groupe ne dépasse pas 5O°C.We know that, during stopovers, planes must undergo a certain number of checks which require the presence of a generator serving as an auxiliary source of electric current. The generators currently used are heavy and bulky. However, it is desirable to have an electric current source which is light and compact. Unfortunately, the reduction in dimensions of the known generator sets leads to poor circulation of the cooling air and the temperature inside the crankcase of the group itself reaches values incompatible with the proximity of the large quantities of volatile fuel loaded in the planes. In fact, for safety reasons, it is desirable that the internal temperature of the group does not exceed 50 ° C.

La présente invention a pour objet un groupe électrogène compact qui permet une circulation d'air aisée dans un volume d'air limitée.The present invention relates to a compact generator which allows easy air circulation in a limited air volume.

Ce résultat est obtenu par une implantation très étudiée des différents composants du groupe, mais il s'est avéré que cette seule implantation ne permet pas d'obtenir une température de fonctionnement satisfaisante. En effet, le refroidissement de l'air ambiant par un radiateur et un ventilateur n'est pas suffisant.This result is obtained by a very studied implantation of the various components of the group, but it turned out that this implantation alone does not make it possible to obtain a satisfactory operating temperature. Indeed, the cooling of the ambient air by a radiator and a fan is not sufficient.

Selon la présente invention, le groupe électrogène compact comprenant à l'intérieur d'un carter monté sur un chassis mobile un alternateur couplé à un moteur est caractérisé en ce qu'une turbine de ventilation entraînée par le moteur est disposée entre l'alternateur et ledit moteur pour créer une circulation forcée d'air de refroidissement sur les collecteurs d'échappement. Ainsi, il est possible d'obtenir une température interne au groupe compatible avec le degré de sécurité requis pour l'entretien des avions.According to the present invention, the compact generator comprising, inside a casing mounted on a movable chassis, an alternator coupled to an engine, is characterized in that a ventilation turbine driven by the engine is disposed between the alternator and said engine to create a forced circulation of cooling air over the exhaust manifolds. Thus, it is possible to obtain an internal temperature in the compa tible with the level of security required for aircraft maintenance.

D'autres caractéristiques et avantages de l'invention apparaitront au cours de la description qui va suivre d'un mode particulier de réalisation en regard des figures qui représentent :

  • - la figure 1 une vue en élévation d'un groupe électrogène dont le carter a été coupé;
  • - la figure 2 une vue par dessus du même groupe;
  • - les figures 3 et 4 des schémas montrant le principe de ventilation du moteur.
Other characteristics and advantages of the invention will appear during the following description of a particular embodiment with reference to the figures which represent:
  • - Figure 1 an elevational view of a generator whose casing has been cut;
  • - Figure 2 a top view of the same group;
  • - Figures 3 and 4 diagrams showing the principle of ventilation of the engine.

Sur les figures 1 et 2, on voit que le châssis 1 repose sur le sol par l'intermédiaire d'un train de roue avant 2 orientable et d'un train de roue arrière 3. Le chassis 1 est monocoque et fermé à sa partie supérieure par des coquilles 4 avantageusement en polyester armé, ce qui permet de réaliser un gain de poids. A l'intérieur de l'espace défini par le chassis 1 et les coquilles 4 se trouve un alternateur 5 mécaniquement couplé à un moteur 6. L'air de refroidissement est aspiré par un orifice 7 situé à l'arrière du groupe et refoulé par une trémie 8.In FIGS. 1 and 2, it can be seen that the chassis 1 rests on the ground by means of a steerable front wheel train 2 and a rear wheel train 3. The chassis 1 is monocoque and closed in its part upper by shells 4 advantageously in reinforced polyester, which makes it possible to save weight. Inside the space defined by the chassis 1 and the shells 4 is an alternator 5 mechanically coupled to a motor 6. The cooling air is sucked in through an orifice 7 located at the rear of the group and discharged by hopper 8.

Comme celà apparaît sur la figure 2, l'alternateur 5, réalisé de préférence en alliage léger tel que du zamac, est entouré d'une part par un pupitre de commande 9 et d'autre part par un réservoir de carburant 10. Une batterie 11 permet le démarrage du groupe. Le moteur 6 est un moteur du type de ceux employés dans l'industrie automobile et il est relié à un filtre à air 12 d'une part et à un circuit de refroidissement comprenant un radiateur 13, un vase d'expansion 14 et un circuit de refroidissement d'autre part, les gaz brûlés par le moteur étant évacués par une canalisation 15 reliée à un pot d'échappement 16 placé à la partie inférieure du groupe. Un régulateur 17 et un coffret de commande 18 de l'alternateur permettent de contrôler la tension, la vitesse et la fréquence du courant généré par l'alternateur. Sur le chassis sont également fixés différents éléments permettant la manoeuvre du groupe tel que le timon 19 et le crochet d'attelage 20.As shown in Figure 2, the alternator 5, preferably made of light alloy such as zamak, is surrounded on the one hand by a control panel 9 and on the other hand by a fuel tank 10. A battery 11 allows the group to start. The engine 6 is an engine of the type used in the automobile industry and it is connected to an air filter 12 on the one hand and to a cooling circuit comprising a radiator 13, an expansion tank 14 and a circuit on the other hand, the gases burned by the engine being discharged through a pipe 15 connected to an exhaust pipe 16 placed at the bottom of the group. A regulator 17 and a control box 18 of the alternator make it possible to control the voltage, the speed and the frequency of the current generated by the alternator. On the chassis are also fixed different elements elements allowing the operation of the group such as the drawbar 19 and the coupling hook 20.

Selon l'invention, l'alternateur 5 et le moteur 6 sont reliés d'un point de vue aérodynamique par une canalisation 21. L'air pénètre par une grille 22 située à la partie arrière de l'alternateur et, après passage de celui-ci, arrive dans une lanterne 23 comprenant une turbine (non représentée) entraînée par le moteur et qui chasse l'air dans des canalisations 24 reliées à des boîtes de distribution 25 à partir desquelles l'air est chassé vers le bas comme indiqué par les flèches F1 sur la figure 3. Sous l'influence de la turbine contenue dans la lanterne 23, l'air soumis à la circulation forcée vient refroidir les conducteurs d'échappement et est évacué directement à la verticale à l'extérieur des boîtes 25. Le circuit de refroidissement normal par ventilateur et radiateur obtient de ce fait un meilleur rendement. Cette circulation forcée est pour ainsi dire montée en parallèle sur le circuit de ventilation normal qui est symbolisé sur la figure 4 par les flèches F2. Le circuit de ventilation normal comprend, outre la trémie de ventilation 8, un silencieux (piège à sons) 26 permettant au personnel de travailler dans des conditions acoustiques supportables et un radiateur 13.According to the invention, the alternator 5 and the engine 6 are aerodynamically connected by a pipe 21. The air enters through a grid 22 located at the rear part of the alternator and, after passage of that -this arrives in a lantern 23 comprising a turbine (not shown) driven by the engine and which expels air in pipes 24 connected to distribution boxes 25 from which the air is expelled downwards as indicated by the arrows F 1 in FIG. 3. Under the influence of the turbine contained in the lantern 23, the air subjected to the forced circulation cools the exhaust conductors and is discharged directly vertically outside the boxes 25. The normal cooling circuit by fan and radiator thus obtains a better efficiency. This forced circulation is, so to speak, mounted in parallel on the normal ventilation circuit which is symbolized in FIG. 4 by the arrows F 2 . The normal ventilation circuit comprises, in addition to the ventilation hopper 8, a silencer (sound trap) 26 allowing the personnel to work in tolerable acoustic conditions and a radiator 13.

Ainsi, l'introduction d'une turbine de circulation forcée entre l'alternateur et le moteur permet d'obtenir un abaissement sensible de la température de fonctionnement, le circuit de ventilation forcée venant coiffer les échappements. On peut ainsi obtenir un groupe électrogène compact par sa structure et léger par un choix approprié de matériaux constituants, le bruit du fonctionnement étant également diminué malgré la réduction des passages d'air.Thus, the introduction of a forced circulation turbine between the alternator and the engine makes it possible to obtain a significant reduction in the operating temperature, the forced ventilation circuit covering the exhausts. It is thus possible to obtain a compact generator by its structure and light by an appropriate choice of constituent materials, the operating noise also being reduced despite the reduction of air passages.

Il va de soi que des modifications peuvent être apportées au mode de réalisation qui vient d'être décrit, notamment par substitution de moyens techniques équivalents, sans sortir pour celà du cadre de la présente invention.It goes without saying that modifications can be made to the embodiment which has just been described, in particular by substitution of equivalent technical means, without departing from the scope of the present invention.

Claims (5)

1.- Groupe électrogène compact comprenant à l'intérieur d'un carter monté sur un châssis mobile un alternateur couplé à un moteur à combustion interne, caracté-. risé en ce que l'alternateur et le moteur étant reliés d'un point de vue aérodynamique par une canalisation, une turbine est placée à l'intérieur de ladite canalisation et entraînée par le moteur de manière à réaliser une circulation forcée.1.- Compact generator comprising, inside a casing mounted on a movable chassis, an alternator coupled to an internal combustion engine, character. risé in that the alternator and the engine being connected from an aerodynamic point of view by a pipe, a turbine is placed inside said pipe and driven by the engine so as to achieve a forced circulation. 2.- Groupe électrogène selon la revendication 1, caractérisé en ce que la turbine précitée est montée à l'intérieur d'une lanterne reliée par des conduits à des boites de distribution disposées de part et d'autre du moteur et ouvertes à leur partie inférieure.2.- generator set according to claim 1, characterized in that the aforementioned turbine is mounted inside a lantern connected by conduits to distribution boxes arranged on either side of the engine and open to their part lower. 3.- Groupe électrogène selon les revendications 1 et 2, caractérisé en ce que le circuit de ventilation forcée entoure les échappements de manière à réduire la température de ceux-ci au cours du fonctionnement.3.- Generator set according to claims 1 and 2, characterized in that the forced ventilation circuit surrounds the exhausts so as to reduce the temperature thereof during operation. 4.- Groupe électrogène selon la revendication 1, caractérisé en ce qu'il comprend un circuit de refroidissement principal incluant un ventilateur et un radiateur.4.- Generator set according to claim 1, characterized in that it comprises a main cooling circuit including a fan and a radiator. 5.- Groupe électrogène selon l'une quelconque des revendications précédentes, caractérisé en ce que l'entrée d'air à l'intérieur du groupe se fait par un orifice placé au voisinage de la partie arrière de l'alternateur, la sortie d'air se faisant par une trémie disposée du côté opposé.5.- Generator set according to any one of the preceding claims, characterized in that the air inlet inside the group is through an orifice placed in the vicinity of the rear part of the alternator, the outlet d air is made by a hopper arranged on the opposite side.
EP80400626A 1979-05-10 1980-05-08 Compact electricity generation set Expired EP0019523B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400626T ATE6089T1 (en) 1979-05-10 1980-05-08 COMPACT POWER GENERATOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7911880 1979-05-10
FR7911880A FR2456419A1 (en) 1979-05-10 1979-05-10 COMPACT ELECTROGEN GROUP

Publications (2)

Publication Number Publication Date
EP0019523A1 true EP0019523A1 (en) 1980-11-26
EP0019523B1 EP0019523B1 (en) 1984-02-01

Family

ID=9225301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400626A Expired EP0019523B1 (en) 1979-05-10 1980-05-08 Compact electricity generation set

Country Status (4)

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EP (1) EP0019523B1 (en)
AT (1) ATE6089T1 (en)
ES (1) ES8102269A1 (en)
FR (1) FR2456419A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985003546A1 (en) * 1984-02-06 1985-08-15 Phillip Berriman Self contained towable power supply for mining machines
CN111946450A (en) * 2020-08-14 2020-11-17 安徽省英菲尼科技股份有限公司 Diesel engine generating set convenient to move

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3835502C2 (en) * 1988-10-19 1998-11-12 Rolf Walge Device for generating electrical energy and for heating buildings

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1018598A (en) * 1963-09-14 1966-01-26 Daimler Benz Ag Improvements relating to electric generator sets
DE2134460A1 (en) * 1971-07-09 1973-01-18 Bernhard Kirsch HOUSING FOR ONE COMBUSTION ENGINE AND GENERATOR, COMPRESSOR OR DGL. EXISTING UNIT
FR2335815A1 (en) * 1975-12-16 1977-07-15 Contraves Ag CURRENT CONSUMER MOBILE DEVICE
NL7810129A (en) * 1977-10-11 1979-04-17 Sigeru Onishi DEVICE FOR GENERATING ELECTRICAL POWER AND FORMING HOT AIR.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1018598A (en) * 1963-09-14 1966-01-26 Daimler Benz Ag Improvements relating to electric generator sets
DE2134460A1 (en) * 1971-07-09 1973-01-18 Bernhard Kirsch HOUSING FOR ONE COMBUSTION ENGINE AND GENERATOR, COMPRESSOR OR DGL. EXISTING UNIT
FR2335815A1 (en) * 1975-12-16 1977-07-15 Contraves Ag CURRENT CONSUMER MOBILE DEVICE
NL7810129A (en) * 1977-10-11 1979-04-17 Sigeru Onishi DEVICE FOR GENERATING ELECTRICAL POWER AND FORMING HOT AIR.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985003546A1 (en) * 1984-02-06 1985-08-15 Phillip Berriman Self contained towable power supply for mining machines
CN111946450A (en) * 2020-08-14 2020-11-17 安徽省英菲尼科技股份有限公司 Diesel engine generating set convenient to move

Also Published As

Publication number Publication date
ES491279A0 (en) 1980-12-16
FR2456419A1 (en) 1980-12-05
FR2456419B1 (en) 1984-12-14
EP0019523B1 (en) 1984-02-01
ES8102269A1 (en) 1980-12-16
ATE6089T1 (en) 1984-02-15

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