WO1999062167A1 - Generateur de moteur - Google Patents

Generateur de moteur Download PDF

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Publication number
WO1999062167A1
WO1999062167A1 PCT/JP1999/002580 JP9902580W WO9962167A1 WO 1999062167 A1 WO1999062167 A1 WO 1999062167A1 JP 9902580 W JP9902580 W JP 9902580W WO 9962167 A1 WO9962167 A1 WO 9962167A1
Authority
WO
WIPO (PCT)
Prior art keywords
engine
flywheel
generator
cooling air
cooling
Prior art date
Application number
PCT/JP1999/002580
Other languages
English (en)
Japanese (ja)
Inventor
Hirotsugu Fukui
Junji Yoshida
Kanzoh Kimura
Makoto Ishikura
Kazuyuki Yoshida
Tadahiko Nishikawa
Masami Yoshii
Naoto Suga
Original Assignee
Yanmar Diesel Engine Co., Ltd.
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
Priority claimed from JP14429298A external-priority patent/JPH11341767A/ja
Priority claimed from JP14429398A external-priority patent/JPH11341742A/ja
Priority claimed from JP14791398A external-priority patent/JPH11343860A/ja
Priority claimed from JP14791298A external-priority patent/JPH11341768A/ja
Priority claimed from JP11011250A external-priority patent/JP2000213362A/ja
Priority claimed from JP11011249A external-priority patent/JP2000217307A/ja
Application filed by Yanmar Diesel Engine Co., Ltd. filed Critical Yanmar Diesel Engine Co., Ltd.
Publication of WO1999062167A1 publication Critical patent/WO1999062167A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1815—Rotary generators structurally associated with reciprocating piston engines

Definitions

  • the present invention relates to an engine generator, particularly to an engine generator in which a generator is mounted on a flywheel of an engine, and to a structure for effectively cooling the engine and the generator in such an engine generator. Further, the present invention relates to a structure capable of taking out engine output other than the engine generator, and further relates to a structure for downsizing a device using such an engine generator as a power source or a power source. Background art
  • engine generators have a structure in which a generator separate from the engine is directly connected to the engine crankshaft or connected via a power transmission mechanism such as a belt-to-gear gear.
  • a generator consisting of a magnet and a coil is installed in a recess formed in the flywheel of the engine.
  • an engine generator that houses the engine.
  • Japanese Utility Model Application Laid-Open No. 58-68680 and Japanese Utility Model Application Laid-Open No. 58-139880 are examples of Japanese Utility Model Application Laid-Open No. 58-68680 and Japanese Utility Model Application Laid-Open No. 58-139880.
  • a cooling fan is conventionally formed on an outer peripheral portion of an outer surface of a flywheel, for example, and cooling air generated by rotation of the flywheel is fed to the flywheel. Of the generator was guided from outside to the recess to cool the generator.
  • the generator with a built-in flywheel has a small storage space for the magnet and the coil in the recess formed in the flywheel. Because of its low frequency and low frequency, such generators were used only for charging batteries.
  • the engine generator is provided with an engine output extractor, if this high-frequency power supply is connected to the engine extractor, for example, a hydraulic pump such as a hydraulic pump, an air conditioner presser, or a high-pressure water pump may be used. Even if you want to drive a load that requires engine power, such as a device, since this high-frequency power supply is connected to the engine output extractor, you must find another power source. Of course, if the load is connected to the engine output extraction section, a power source for the high-voltage generator must be prepared separately. As described above, in the conventional engine generator, when high-frequency power is required, the range of use is limited, and it is necessary to separately prepare a power supply and a power source.
  • the load of the high-frequency generator and the like is arranged on the anti-flywheel side of the engine body, so that the exhaust muffler is connected to the load.
  • they In order to arrange them side by side, they must be arranged in parallel with the load.
  • the exhaust muffler needs to be long in order to maintain its soundproofing effect sufficiently. There is. Therefore, either soundproofing or compactness had to be sacrificed.
  • the generator of the type installed in the flywheel of the engine generator can provide high-output high-frequency power while maintaining the conventional compactness.
  • a space for disposing the exhaust muffler can be secured because the high-frequency generator is not provided.
  • the cooling fan for cooling the generator with the built-in flywheel is formed to be small for the required compactness, and the flow of the cooling air flows from the cooling fan to the outer surface of the flywheel.
  • the cooling air from the cooling fan only cools the generator in the flywheel or only cools the engine secondarily, and it is necessary to perform sufficient cooling of the engine separately.
  • An engine generator is configured such that a concave portion is formed circumferentially around the shaft center on a flywheel attached to a crankshaft of an engine on the same axis, and an inner peripheral surface of the flywheel is formed in the concave portion.
  • a generator is constructed by fixing a rotor magnet made of a ferromagnetic permanent magnet on the engine body and arranging a plurality of armature poles on the engine body side to face the rotor magnet rotating integrally with the flywheel. ing. Since all the generators are accommodated in the space where the flywheel is placed, compactness is ensured. Despite such a compact configuration, the rotor magnet is a ferromagnetic permanent magnet. For example, by using a rare earth magnet, the rotor magnet is about 6 to 7 times as large as a commonly used fluoride magnet. It is possible to obtain output energy.
  • the output characteristics of the generator configured in the recess of the flywheel are determined by the discharge characteristics of a discharge lamp such as a metal-halide lamp. It has a large drooping characteristic suitable for the characteristics, for example, as a power source of a floodlight equipped with a discharge lamp such as a metal halide lamp, a generator in the flywheel recess can be used. In addition, there is no need to interpose a large and expensive ballast, and it can be used as a compact and inexpensive high-frequency power supply. As described above, the engine generator can be used as it is as a power source for those requiring high-frequency power, such as a floodlight or a welding machine.
  • flywheel attaching / detaching means for moving the flywheel with the rotor magnet attached thereto on the same axis as the crankshaft while piled on the attraction force between the rotor magnet and the armature pole.
  • this engine generator can be used as a power source for other engine power loads in addition to the generator in the flywheel used as a high-frequency power supply It becomes possible. Therefore, the high-frequency generator in the flywheel is used as a power source for loads that require high-frequency power, such as floodlights and welding machines, while a generator for commercial power is connected to the engine output extraction section.
  • An auxiliary lamp or a tool can be used as a power source, or a pressure supply device such as a hydraulic pump, air compressor, or high-pressure water pump is connected to the engine output port, and an engine generator is mounted by this pressure supply. It can be used as the driving power of a self-propelled machine or driving a tool. As described above, it is not necessary to prepare a power source of a commercial power supply or a pressure-driven device, and various loads can be used simultaneously with power supply by the high-frequency generator in the flywheel only by the engine generator of the present invention. .
  • an exhaust muffler is arranged in a substantially horizontal direction substantially orthogonal to the crankshaft on the side opposite to the flywheel of the engine body. .
  • the present invention relates to an engine generator in which a generator is housed in a recess of a flywheel.
  • the coil portion of the armature poles is particularly high in temperature. Since an effective cooling structure is desired, the following cooling structure is provided.
  • a concave portion is formed circumferentially around the shaft center on a flywheel urged coaxially with the crankshaft of the engine.
  • the rotor fixed to the wheel and the rotor fixed to the engine body A generator is constructed by arranging a fixed element and a cooling fan is constructed by arranging a plurality of blower blades on the anti-engine side of the flywheel, and the flywheel has at least one open end.
  • a through-hole communicating with the inside of the recess is formed to allow air to flow from the engine body side to the cooling fan through the inside of the recess and through the through-hole.
  • the cooling air flows in one direction from the engine side to the cooling fan without stagnation or turbulence of the cooling air, and the coil of the armature pole of the generator that becomes particularly hot The cooling air passes through the portion to cool it effectively.
  • a cooling air guide member for guiding the cooling air passing through the through hole from the engine body toward the cooling fan is provided on the side of the flywheel where the blowing blades are provided, so that the cooling air flows through the through hole. After passing through the cooling fan, the cooling fan is smoothly sent to the cooling fan, so that cooling air from the engine side is successively introduced into the through hole and passes therethrough. Therefore, the flow of the cooling air from the engine passing through the through-hole and the flywheel recess is stabilized, and the cooling effect of the generator in the recess is ensured.
  • the cooling air flows from the outside of the flywheel toward the cooling fan, that is, in the direction opposite to the cooling air from the engine side. Due to the cooling air, the cooling air from the engine side may stay or turbulently flow in the concave portion, and the cooling effect of the generator may be reduced. Therefore, the cooling air guide member is extended to the vicinity of the outer peripheral end of the rotation trajectory of the blower blade to partition the outer space of the flywheel substantially parallel to the surface of the flywheel.
  • the cooling wind passing through the through hole and the inside of the recess from the engine side is not affected by the cooling wind in the facing direction, and therefore does not stay or turbulent in the recess, and the outer peripheral end of the rotation locus of the blower blades
  • the cooling air flow is guided more stably to the vicinity of the cooling fan, that is, to the vicinity of the outer periphery of the cooling fan, and the cooling effect of the generator in the flywheel recess is further ensured.
  • the blower blade is provided at an end opposite to the flywheel of the cooling fan.
  • a closing member substantially parallel to the flywheel surface is provided.
  • the cooling air is sucked into the cooling fan and introduced from the outside of the flywheel (opposite the engine side) (opposed to the cooling air from the engine side).
  • the air is blown to the outer periphery of the fan to cool the engine cylinder and electrical components arranged near it, but when the cooling fan rotates, air is pushed out of the space between the air blowing blades, The cooling air may be pushed back, and these cooling effects may be reduced.
  • the cooling air from the outside of the flywheel is separated from the cooling air from the engine side by the cooling air guide member. Interference is avoided, and the blocking member does not return to the flow of air pushed out from between the blower blades, but is smoothly blown to the cylinder portion of the engine, etc., to ensure these cooling effects. You can.
  • the stator of the generator in the flywheel recess is integrally attached to the engine main body via the support member, if the stator is provided with the armature pole winding, Is generated from the stator and transmitted to the support member. Therefore, by forming a radiation fin on the support member, the radiation fin hits the cooling air passing through the through hole and the concave portion from the engine side, and the support member is effectively cooled. The cooling effect of the high-temperature part in the winding can be further improved.
  • a generator with a built-in flywheel is arranged inside a flywheel, that is, in a recess formed on the side facing the engine body.
  • the flywheel intervenes between the generator in the recess and the engine body, so that the heat generated by the engine body in the generator in the recess is cut off by the flywheel. As a result, the temperature of the generator can be suppressed from rising.
  • the flywheel is provided with a through-hole so that the cooling wind blown from the engine side is directed to the cooling fan through the recess and the through-hole.
  • Forming a cooling air passage having an outlet toward the wheel wherein the cooling air passing through the cooling air passage passes through the inside of the recess of the flywheel and the through hole, and arranges the blower blades of the flywheel. Shall be blown into the side space
  • the wind sucked through the through-hole by the cooling fan cools the engine body while passing through the cooling air passage, and further cools the generator while passing through the recess of the flywheel.
  • the flow of cooling air that effectively cools both the engine and the generator can be secured.
  • the pressure inside the cooling air passage becomes low due to the bowing I of the cooling fan, and therefore, there is a tolerance to further supplement the cooling air.
  • the flow of the cooling air passing through the cooling air passage and reaching the cooling fan passes through a particularly high-temperature portion such as an oil pan in the engine body or an armature pole winding of a generator in the flywheel. Therefore, we want to supply as much cooling air as possible to this flow.
  • Cooling air from the outside and inside of the flywheel merges into the outer periphery of the rejection fan to create a high pressure, and some of the cooling air can be supplied.
  • the high-pressure space around the outer periphery of the cooling fan is communicated with the low-pressure cooling air passage in the engine body, and a part of the cooling air in the high-pressure space is transmitted to the cooling air passage.
  • the cooling air is concentrated in the cooling air flow path from the cooling air passage to the cooling fan, where the hot parts such as oil pans and armature windings of the generator are concentrated. Is supplied, and these cooling effects can be further improved.
  • the exhaust air from the cooling air passage is concentrated and smoothly concentrated on the flywheel.
  • the cooling air is guided to the inside and the through hole, and the cooling air intensively hits the generator in the concave portion, and the cooling effect of the generator is further improved.
  • a cooling air passage formed in the engine main body when a cylinder is formed in a cylinder main body so as to be inclined when viewed in the crankshaft direction, there is a space below the cylinder, and a generator in the flywheel recess.
  • a thick portion is formed from the lower surface of the cylinder to the side of the crank chamber, and a thick portion is formed in the thick portion from the side opposite to the flywheel. It is conceivable to form a penetrating cooling air passage to the flywheel side. As a result, the cooling air passage is moved from the flywheel side to the flywheel by the suction bow I of the cooling fan.
  • the cooling air flows to the side of the flywheel, and the cooling air is introduced almost directly into the recess or through hole of the flywheel. Also, in the engine body, it is necessary to cool the oil pan at the bottom of the crankcase.Therefore, a cooling air passage should be formed just below the oil pan of the engine body, and the inlet should be opened at the bottom of the engine body. Is also conceivable. Thus, the cooling air is drawn from the cooling air passage from the bottom inlet to the flywheel side outlet by suction of the cooling fan, and the cooling air is introduced into the concave portion of the flywheel or into the through hole.
  • An engine generator having a cooling air passage formed immediately below an oil pan in the engine body was covered with a soundproof case, a ventilation duct was formed below the soundproof case, and the ventilation duct was opened at the bottom of the engine body from the ventilation duct.
  • FIG. 1 is a front view showing a state in which a fan case 14 of an engine generator according to a basic embodiment of the present invention, in which a generator D is mounted on a flywheel 4 of an engine E, is removed,
  • FIG. 2 is a cross-sectional view taken along the line I-I of FIG. 1 with the fan case 14 attached.
  • FIG. 3 is a partial front view of a floodlight power generator D1, which is an embodiment of the high-frequency AC generator D employed in the engine generator of the present invention,
  • FIG. 4 is a partial front view of the generator D2 for the power source of the welding machine.
  • FIG. 5 is a side sectional view showing a structure for attaching and detaching the flywheel 4 to and from the crankshaft 3 in the engine generator according to the present invention
  • FIG. 6 is a schematic diagram of the engine generator according to the present invention with the discharge lamp L connected
  • FIG. 7 is a graph showing output characteristics of the engine generator according to the present invention
  • FIG. 8 is a schematic diagram showing a state in which a discharge lamp L is connected via a ballast 17 to an engine generator in which a conventional generator D 'is housed in a flywheel,
  • Fig. 9 is a graph showing the output characteristics of a conventional engine generator.
  • FIG. 10 is a graph showing generator output characteristics when a ballast 17 is interposed between a conventional engine generator and a discharge lamp L.
  • FIG. 11 is a side sectional view of an engine generator including a generator D according to the present invention on a flywheel 4 of an air-cooled diesel engine E ′,
  • FIG. 12 is a side sectional view of an engine generator provided with a generator D according to the present invention on a flywheel 4 of a water-cooled diesel engine E ",
  • FIG. 13 shows a first embodiment of a further improved cooling structure according to the present invention, and is a fan case of an engine generator having a cooling air guide plate 25 and an external auxiliary blowing blade 26. It is a front view in a state where 14 has been removed,
  • FIG. 14 is a cross-sectional view taken along the line I-I of FIG. 13 with the fan case 14 attached.
  • FIG. 15 shows a second embodiment of the present invention, and is a front view of the engine generator having a cooling air guide plate 25 and a part of auxiliary fan blades 27 with a fan case 14 removed.
  • FIG. 16 is a cross-sectional view taken along the line I-I of FIG. 15 with the fan case 14 attached.
  • FIG. 17 shows the same third embodiment, in which the cooling fan 5 is provided with a cooling air guide plate 25 'and a closing plate 28, and the stay bracket 8 is provided with a heat radiating fin.
  • FIG. 5 is a front view of the engine generator with a fan case 14 having a guide plate 29 provided outside the outlet of the wind passages 1 e and 1 g, with a fan case 14 removed.
  • FIG. 18 is a cross-sectional view taken along the line I-I of FIG. 17 with the fan case 14 attached.
  • FIG. 19 is a side sectional view of the flywheel 4 with the cooling air guide plate 25 ′ and the closing plate 28 attached.
  • FIG. 20 is a front view of the cooling air guide plate 25 ′.
  • FIG. 21 is a front view of the closing plate 28
  • FIG. 22 is a front view of a stator bracket 8 having a radiation fin formed on an inner peripheral portion thereof.
  • FIG. 23 is also a side sectional view
  • FIG. 24 shows a fourth embodiment of a further improved cooling structure according to the present invention, which is a fan of an engine generator having a structure for communicating a high-pressure space and a low-pressure space in a cooling air passage. It is a front view in a state where the case 14 is removed,
  • FIG. 25 is a cross-sectional view taken along the line I-I of FIG. 24 with the fan case 14 attached.
  • FIG. 26 is a fifth embodiment of a further improved cooling structure for an engine generator according to the present invention, wherein a cylinder shaft of an engine generator having a structure in which a generator D is disposed outside a flywheel.
  • FIG. 3 is a cross-sectional view of a plane including a crankshaft center and a vertical plane including a crankshaft center;
  • Fig. 27 is an internal rear view of a generator unit with a high-power high-frequency AC generator D mounted on the flywheel 4 of the engine E and an engine generator installed inside the soundproof case 39. ,
  • FIG. 28 is also an internal side view
  • FIG. 29 is a bottom view showing the ceiling surface of a ventilation duct 39 b formed at the bottom of the soundproof case 39.
  • FIG. 30 is an internal side view showing an embodiment of a power generation unit capable of stacking vertically.
  • Figure 31 is also a bottom view
  • FIG. 32 shows a conventional low-frequency AC generator D 'mounted on the flywheel 4 of the engine E, and a high-frequency AC generator 44 connected to the engine output extraction section.
  • FIG. 9 is an internal invention diagram of a conventional generator unit having a configuration internally provided at 9 '.
  • Fig. 33 is also an internal side view
  • FIG. 34 shows an embodiment in which an auxiliary generator 45 is connected to the engine output extraction section of the engine generator in which the high-power high-frequency generator D according to the present invention is mounted on the flywheel 4 of the engine E.
  • FIG. 35 shows an embodiment in which a high-power high-frequency generator D according to the present invention is mounted on a flywheel 4 of an engine E, and a hydraulic pump 47 is connected to an engine output extraction section of the engine generator. It is a side sectional view,
  • FIG. 36 is a side view of a floodlight powered by an engine generator connected to the hydraulic pump 47 shown in FIG. 35 as a power source.
  • Fig. 37 is also a rear view
  • FIG. 38 is a side sectional view showing a telescopic drive configuration of the lamp 51 using the hydraulic motor 57 for raising and lowering the column 51 of the projector.
  • FIG. 39 is a drive hydraulic circuit diagram of a traveling hydraulic motor 55 and a lamp elevating hydraulic motor 57 by the hydraulic pump 47 of the floodlight.
  • FIG. 40 is a side view showing an embodiment in which an air compressor 63 is connected to an engine output extraction portion of an engine generator in which the high-power high-frequency generator D according to the present invention is mounted on the flywheel 4 of the engine E.
  • FIG. 40 is a side view showing an embodiment in which an air compressor 63 is connected to an engine output extraction portion of an engine generator in which the high-power high-frequency generator D according to the present invention is mounted on the flywheel 4 of the engine E.
  • FIG. 41 is a side sectional view showing an embodiment in which a high-pressure water pump 64 is connected to an engine output extracting portion of the engine generator.
  • an engine generator (motor generator) having a configuration in which a flywheel 4 of an air-cooled gasoline engine E according to the basic embodiment of the present invention shown in FIGS. .
  • the engine E which is the power source of the generator, has a cylinder head 2 attached to a cylinder part 1a formed in the engine body 1, and an outer surface of the cylinder part 1a has a cooling fan 5 to be described later. Heat-dissipating fins for radiating heat by cooling air are formed.
  • a crankshaft 3 is rotatably supported so as to cross back and forth in a crankcase 1 c formed in the engine body 1.
  • crankshaft 3 One end (the front end in this embodiment) of the crankshaft 3 is connected to a flywheel
  • the flywheel is fitted into the crankshaft hole 4e of the boss portion 4d formed at the center of the flywheel 4 and the endnut 9 is screwed into the screw portion 3a at the tip of the crankshaft 3 from the outside.
  • 4 is fixed to the crankshaft 3, and the flywheel 4 and the crankshaft 3 are integrally rotatable.
  • a part of the outer peripheral surface of the flywheel 4 is notched, and an ignition power supply magnet 10 is fixed in the notch.
  • the ignition power supply armature 11 wound with the ignition power supply coil 11 a is arranged so as to face the outer peripheral surface of the flywheel 4, and the flywheel 4 is arranged in the cylinder portion 1 a of the engine body 1.
  • the bosses 1b and 1b, which protrude horizontally from the installation side (front), are fastened with pins or bolts to the tips.
  • the power source of the ignition plug attached to the cylinder head 2 is configured, and the flywheel 4 rotates and the ignition power magnet 10 faces the ignition power armature 11 at the timing. Ignite the spark plug.
  • a ring gear 12 is fixedly provided on the inner surface of the flywheel 4, that is, on the outer peripheral portion of the surface facing the engine body 1, and mates with the output gear of the cell motor 13 for starting the engine E shown in FIG. ing.
  • a bracket 8 is fixed to the outer surface (the front in this embodiment) of the engine body 1 on which the flywheel 4 is disposed. Evening coil 7a-7a ⁇ ⁇ ⁇ is fixed to stay 7 by radially protruding.
  • the stay bracket 8 and the stay bracket 7 each have a substantially ring shape when viewed from the front and have center holes 8a and 7b, and both center holes 8a and 7b are connected to each other.
  • the crankshaft 3 is rotatably penetrated through a ⁇ 7b.
  • the radius of the center holes 8a and 7b is considerably larger than the radius of the crankshaft 3, and there is a considerable gap between the crankshaft 3 and the inner peripheral wall surfaces of the center holes 8a and 7b. It is used as a hole for the cooling air W2 from the cooling air passages 1e and 1g formed in the engine E into the rear recess 4a of the flywheel 4, which will be described later.
  • the recess 4 a is formed so as to open on the ffi! L surface (rear surface) of the flywheel 4, that is, toward the front surface of the engine body 1.
  • a rotor magnet 6 is fixed all around the inner peripheral surface of the outer peripheral portion of the flywheel 4 surrounding the outer periphery of the concave portion 4a.
  • a are arranged in the recess 4 a so as to face the rotor magnet 6.
  • the rotatable magnet 6 may be divided into a plurality and provided on the entire outer periphery of the concave portion 4a as shown in FIGS. 3 and 4 described later.
  • the engine E is driven, and the rotor shaft with the crankshaft 3 and flywheel 4
  • the stay coils 7a, 7a ... are excited to generate frequency power based on the rotation speed of the crankshaft 3 and the number of poles of the stay coils 7a, 7a This power can be supplied to the outside.
  • an engine output extraction portion 3b is formed at the end of the crankshaft 3 on the side opposite to the flywheel 4 as shown in FIG.
  • an engine output take-out portion 46a is formed at the end of the cam shaft 46 of the engine E opposite to the side where the flywheel 4 is provided, so that such an engine output take-out portion is formed.
  • Various loads may be connected. This will be described later in detail.
  • the mouth magnet 6 and the stator coil 7a which are components of the AC generator D, will be described.
  • the magnet 6 is made of a rare-earth magnet that is a ferromagnetic permanent magnet having a very high output energy, such as a neodymium-based sintered magnet whose main raw materials are the rare-earth elements neodymium, iron, and boron. Used.
  • the maximum energy product of this neodymium rare earth magnet is, for example, about 26 to 31 MG ⁇ Oe, and the output energy is about 6 to 7 times that of a commonly used fluoride magnet. You can get Lugie.
  • the residual magnetic flux density of the neodymium rare earth magnet is also very large.
  • the generator output can be increased by using the rotor magnet 6 having a large residual magnetic flux density Br.
  • the AC generator D employed in the engine generator of the present invention uses the rare-earth magnet having a very large residual magnetic flux density for the rotor magnet 6, so that a large generator output can be obtained.
  • the stay 7 is provided with a multi-pole stay coil 7a so as to increase the value of the frequency f, furthermore, A large generator output can be obtained.
  • the conventional flywheel-mounted generator D 'in a conventional engine generator using a rotor magnet made of ferrite magnets has a generator output of at most about 100 W, but the generator D of the present invention has However, since the rotor magnet 7 is used while having the same size as the conventional fly magnet but having the same strong magnetism, even if it is configured to be the same size as the conventional generator D ', at least 1 kW or more of power is generated. It is possible to obtain a generator output of about 2 kW to 3 kW. In other words, a large generator output can be generated while maintaining a lightweight and compact structure.
  • the AC generator in the conventional engine generator has a two-pole stay coil, and the power generation frequency is set to 50 Hz or 60 Hz, which is the same as that of commercial power. Was set.
  • the generator D of the present invention can set the power generation frequency to a high frequency, and the number of poles of the stay coil 7a can output power at a frequency corresponding to the power supply target.
  • the generator D 1 in FIG. 3 is a two-phase AC type in which an 18-pole stator coil 7 a is arranged, and the generator D 2 in FIG. This is a three-phase AC type with a total of 24 poles, with the overnight coil 7a as one unit.
  • the number of poles of the coil 6 is 18 poles, and if the rated rotation speed of the engine E is set to 360 rpm, it is possible to provide 540 Hz high-frequency AC power generation.
  • the output characteristics of the high-frequency AC generator D1 configured as described above in FIG. 3 (a graph with current on the horizontal axis and voltage on the vertical axis) have a large drooping characteristic as shown in FIG. As shown in Fig. 6, the output terminal of generator D1 is directly connected to discharge lamp L as shown in Fig. You can connect.
  • the output characteristics of the conventional engine generator having the low-frequency AC generator D ' have a substantially constant voltage characteristic as shown in Fig. 7, and are stable even when connected to a discharge lamp. Since a lamp cannot be obtained, a ballast 17 is interposed between the generator D 'and the discharge lamp L in the conventional engine generator, as shown in Fig. 8, and it can be seen in Fig. 9. It was necessary to control the output so as to have a drooping characteristic. This ballast 17 is heavy and expensive. In this regard, in the case of the engine generator according to the present invention using the generator D, as shown in FIG. 6, the discharge lamp L is stabilized without the ballast 17 interposed therebetween, and This contributes to weight reduction, compactness, and cost reduction.
  • FIG. 10 shows the detachable structure of the flywheel 4 in an engine generator in which such a high-output high-frequency AC generator D is mounted on the flywheel 4, that is, the connection of the flywheel 4 to the crankshaft 3 supported by the engine E.
  • the detachable structure will be described.
  • conventional engine generators equipped with an alternator on a flywheel when attaching and detaching the flywheel to and from the crankshaft, the operator directly performs the attachment and detachment work by hand.
  • the rotor magnet 6 since the rotor magnet 6 is formed of a rare-earth magnet having a very large magnetic force, it acts between the rotor magnet 6 and the stay coil 7a.
  • the suction force is large.
  • the flywheel 4 when the flywheel 4 is mounted on the crankshaft 3, when the flywheel 4 is moved closer to the engine body 1 side, the flywheel 4 is pulled strongly by the stay coil 7 a.
  • the moving direction of the flywheel 4 is displaced from the axis, so that the crankshaft hole 4 e at the center of the flywheel 4 cannot be fitted to the crankshaft 3, There was a case where the installation work did not go well due to the sticking of the evening coil 7a.
  • the flywheel 4 is attached to and detached from the crank shaft 3 by using an attaching / detaching jig 18.
  • the attachment / detachment jig 18 includes an inner tube 21 having an internal thread formed on an inner periphery thereof, an outer tube 19 slidably fitted to the inner tube 21, and an inner tube 19.
  • a screw member 20 that is rotatably attached and forms a male screw on the outer periphery and screwed into the inner cylinder 21, and an operation lever 23 that rotates the screw member 20 via the arm 22.
  • the screw member 20 and the outer cylinder 19 are integrally moved in the axial direction of the inner cylinder 21. are doing.
  • the attachment / detachment jig 18 is removed from the crankshaft 3 and the end nut 9 is screwed into the screw portion 3 a of the crankshaft 3. Then, the flywheel 4 is fixed to the crankshaft 3.
  • the flywheel 4 is pulled out of the crankshaft 3 by rotating the operation lever 23 in a direction in which the screw member 20 moves to the side opposite to the crankshaft 3. Further, rotate the operating levers 2 and 3 to separate the flywheel 4 from the stay coil 7a, and flywheel to a position where the attraction force between the mouth magnet 6 and the stay coil 7a becomes weak.
  • the inner cylinder 21 is removed from the crankshaft 3, and the attachment / detachment jig 18 and the flywheel 4 are separated from the engine E.
  • the flywheel 4 can be gradually moved in the axial direction while being against the attraction force between the rotor magnet 6 and the stay coil 7a, and can be removed from the crankshaft 3.
  • the flywheel 4 is attracted by the magnet between the mouth and magnet 6 and the stay and coil 7 a. While gradually moving in the direction of the axis of the crankshaft 3, and aligning the axis of the crankshaft with the axis of the flywheel 4.
  • the flywheel 4 when removing the flywheel 4 from the crankshaft 3, the flywheel 4 can be removed from the crankshaft 3 simply by rotating the operation lever 23 of the attachment / detachment jig 1 8 and performing a simple operation. Can be removed from the / 62167
  • a plurality of blower blades 5 a ⁇ 5 a ⁇ ⁇ ⁇ ⁇ are attached to the outer surface of the flywheel 2 to form a cooling fan 5.
  • Each of the blower blades 5a has a substantially U-shape in a front view, and all the blower blades 5a are arranged radially from the center of the flywheel 4 (crankshaft 3).
  • the shape of each blower blade 5a can be considered in various other ways, it is possible to consider the rotational direction of the flywheel 4 by rotating the blower blade 5a together with the flywheel 4 regardless of the shape of the flywheel 4.
  • the structure is such that air is blown from the inner peripheral part to the outer peripheral part of the cooling fan 5, that is, from the inner peripheral end to the outer peripheral end of the rotation trajectory of the blower blades 5 a, 5 a, in front view.
  • the flywheel 4, the cooling fan 5 attached to the flywheel 4, and an air supply port such as a circular shape in a front view are provided so as to cover electrical components such as an ignition power supply device having an ignition power supply coil 11a and the like.
  • Wind guide grill A fan case 14 opening the 14 a is provided, and when viewed from the front, the outer edge of the wind guide port 14 a is formed by the cooling fan 5 (the blower blade 5 a5 a ⁇
  • the rotation locus of ( ⁇ ) is located at the inner peripheral end or closer to the center of the flywheel 4 than that.
  • the blower blades 5a rotate together with the flywheel 4 to generate a flow of wind from the center of the cooling fan 5 to the outer peripheral side as described above, while being attracted to this flow.
  • Outside air is introduced from the air introduction port 14 a to the inner periphery of the cooling fan 5 in the fan case 14, and the introduced cooling air W 1 is supplied from the inner periphery of the cooling fan 5 in the fan case 14. It flows to the outer periphery, passes through the ignition power supply coil 11a, and hits the cylinder 1a of the engine body 1 (a heat radiation fin is formed on the outer surface) and the cylinder head 2 attached to the upper end of the cylinder. This cools a high-temperature portion such as an intake / exhaust valve or a spark plug provided in the cylinder head 2.
  • the cylinder portion la is formed in an inclined shape when viewed from the front (when viewed in the direction of the crankshaft 3). 1 7
  • a space can be secured under the lower part without any particular equipment. Therefore, using this space, a thick portion 1h is formed from the inclined lower surface of the cylinder portion 1a to the side of the crankcase 1c, and the thick portion lh is formed in the recess 4a of the flywheel 4.
  • a front-rear penetrating shape that is, a side cooling air passage 1 e penetrating from the side of the anti-flywheel 4 to the side of the flywheel 4 is formed.
  • the bottom of the engine body 1 in the crank chamber 1 c is an oil pan 1 d, and a bottom cooling air passage 1 g is formed immediately below the oil pan 1 d, which opens in the front, that is, on the surface on the flywheel 4 side.
  • a bottom cooling wind bottom inlet 1f is opened as an inlet.
  • a ventilation duct 15 may be connected to the bottom cooling air inlet 1 f downward and outward.
  • the ventilation hole 4c is located closer to the center than the inner periphery of the cooling fan 5 in front view (the center of the flywheel 4 is located closer to the inner periphery of the rotation locus of the blower blades 5a, 5a, ). I do.
  • the generator D Inside draws air through the ventilation holes 4c and is drawn into the outside of the side wall 4b of the flywheel 4 (inside the fan case 14). It cools one coil 7 a ⁇ 7 a ⁇ ⁇ '. That is, by the formation of the ventilation holes 4 c in the flywheel 4, the cooling air passages 1 e ⁇ 1 g pass through the generator D to the outside of the flywheel 4.
  • the cooling air W2 in one direction flowing into the fan case 14 of the engine E is secured, and a high cooling effect can be obtained for the oil pan 1d of the engine E and the generator D (particularly, the star coil 7a). .
  • the generator D with built-in flywheel and the cooling mechanism (cooling fan 5) as described above are used in the air-cooled diesel engine E 'shown in FIG. 11 and the water-cooled diesel engine E "shown in FIG.
  • the same reference numerals as those disclosed in FIGS. 1 and 2 denote members having the same structure and function.
  • the air-cooled diesel engine E 'shown in Fig. 11 has a cylinder head 2' for a diesel engine attached to the cylinder section a of the engine body 1 '.
  • the outer periphery of the cylinder section ⁇ a Forming a cooling fin passage, and a cooling air passage 1 ′ g opening toward the recess 4 a of the flywheel 4 (that is, the generator D provided therein) as described above.
  • Forming a cooling fan 5 similar to that shown in FIG. 1 and the like outside the flywheel 4 having the ventilation holes 4c it is possible to obtain a cooling air having the same flow as the cooling air Wl'W2. As a result, the cooling effect of the generator D's stay coil 7a etc. is ensured.
  • the motor 13 ' is disposed outside the fan case 14; however, the cooling air corresponding to the cooling air W1 is provided in the fan case 14. Can be introduced.
  • the water-cooled diesel engine E “shown in Fig. 12 has a cylinder head 2" for a diesel engine mounted on the cylinder section 1 "a of the engine body 1".
  • the engine body 1 has cooling air passages and radiating fins.
  • a cooling water pump 16 is installed inside the crankcase, and a cooling fan 5 formed in the flywheel 4 blows cooling air all over Rage
  • a structure such as the cooling air passages 1e and 1g described above may be specially formed in the engine body 1 "for cooling the stay coil 7a.
  • the engine is a water-cooled gasoline engine.
  • the engine constituting the generator is not limited to a water-cooled type and an air-cooled type, or a diesel type and a gasoline type, and may be any type.
  • the high-frequency AC generator D according to the present invention may be provided in a flywheel of any kind of engine.
  • the improved cooling structure for engine generators described below is mainly used for air-cooled engines, but as described above, water-cooled engines have special cooling air for cooling generator D.
  • a passage may be formed, and various improved cooling structures introduced below may be adopted.
  • FIGS. 1 and 2 an improved embodiment of the basic cooling structure shown in FIGS. 1 and 2, which is employed in the engine generator having the generator D in the flywheel as described above, will be described. This will be described with reference to FIGS. 13 to 26. Since the generator D is capable of generating high-power high-frequency power, the temperature of the generator D due to the stator coil 7a becomes significantly higher than before, so that the cooling effect of the generator D is particularly improved. In order to further enhance the structure, in addition to the cooling improvement structure of the ventilation hole 4c of the flywheel 4 shown in FIGS. 1 and 2 described above, the following various improvement structures are conceivable.
  • the center portion of the outer surface of the side wall 4b of the flywheel 4 is provided with a cooling wind guide member formed in a substantially mortar shape. 25 is attached with bolts or the like to cover the ventilation hole 4c from outside.
  • Cooling air W2 that has passed through 1g and generator D to cool the oil pan 1d and the stationary coil 7a, etc., does not escape from the ventilation hole 4c to the outside of the flywheel 4, and conversely The wind from 14a pushes back to the concave portion 4a, and the cooling effect of the generator D may be attenuated.
  • both flow of the cooling air W l 'W 2 is isolated opposite, the cooling air W 2 that escapes from the vent hole 4 c outward direction of the flywheel 4
  • the cooling air guide member 25 is smoothly guided from the cooling air guide member 25 to the blower blade 5a on the outer periphery thereof. That is, the cooling air guide member 25 controls and stabilizes the flow so that the cooling air W2 flows in a certain direction, thereby improving the cooling efficiency.
  • a plurality of external auxiliary blowing blades 26 are formed on the outer surface of the side wall 4b of the flywheel 4 near the center of the blowing blade 5a. As the flywheel 4 rotates, the external auxiliary blower blades 26 move from the inside of the flywheel 4 to the outside. Cooling air W2, which cools the oil pan 1d and the stationary coil 7a, passes through the ventilation hole 4c and is directed outward from the flywheel 4. When flowing out, the flow is strengthened and stabilized. Thereby, the cooling efficiency can be improved.
  • Such an auxiliary blowing blade may be formed inside the side wall 4 b of the flywheel 4.
  • a plurality of internal auxiliary blow blades 2 7 are provided on the boss 4 d closer to the center than the ventilation holes 4 c inside the side wall 4 of the flywheel 4. Is formed.
  • the internal auxiliary blowing blades 27 are configured such that a flow from the inside to the outside of the flywheel 4 is generated with the rotation of the flywheel 4, similarly to the external auxiliary blowing blades 26.
  • the outer peripheral edge of the cooling air guide member 25 shown in FIGS. 13 to 16 is located closer to the center of the cooling fan 5 than the blowing blades 5 a Since the cooling air Wl * W2 joins immediately before being guided to the blower blade 5a, the cooling air W2 may flow backward or stay inside the flywheel 4 (the recess 4a side). Still remains. Therefore, in the third embodiment shown in FIGS. 17 to 23, as shown in FIGS. 17 to 20, a conical plate corresponding to the above-mentioned substantially mortar-shaped cooling air guide member 25 is used.
  • a cooling air guide member 25 ′ having a shape in which a ring-shaped plate portion 25 ′ b extending parallel to the side wall 4 b from the outer peripheral edge of the portion 25 ′ a is attached to the outside of the side wall 4 b of the flywheel 4. It is attached to the surface. As shown in Fig. 20, a bolt hole 25'c is formed in the center of the conical plate portion 25'a, and a bolt 29 is inserted through the bolt hole 25'c. The cooling air guide member 25 ′ is screwed to the outer surface of the side wall 4 b of the flywheel 4.
  • the flat plate portion 25 ′ b of the cooling air guide member 25 ′ extends to an intermediate portion of each of the blower blades 5 a formed substantially in the radial direction of the flywheel 4.
  • a hole 25'd formed in the flat plate portion 25'b shown in FIG. 20 is a hole for passing a boss 28a protruding from the closing member 28 described later.
  • the space on the side of the flywheel 4 where the cooling fan 5 is formed that is, the side wall 4 b
  • the space between the fan case 14 and the fan case 14 is divided into two inside and outside by the cooling air guide member 25 ′, and the inside divided space communicating with the ventilation hole 4 c is covered by the cooling air guide member 25 ′. It will be.
  • the cooling air W 2 passes through the ventilation holes 2 d, and then passes through the space between the side wall 4 b of the flywheel 4 and the cooling air guide member 25 * to blow the blowing blades 5 a
  • the air is blown to the outer peripheral portion of the cooling fan 5 by the suction force of the rotation of the fan.
  • the cooling air W2 is isolated from the cooling air W1 from the air introduction port 14a, so that the flow is stabilized in one direction, and particularly, the cooling air W2 is heated at the generator D where the temperature becomes high during the operation of the engine E.
  • Overnight coil 7a provides excellent cooling effect.
  • the air in the space between the blower blades 5a and 5a is pushed out to the air guide port 14a side, and enters the fan case 14 via the air guide port 14a.
  • the introduced cooling air W1 is pushed back to the air introduction port 14a again, and the flow of the cooling air W1 from the air introduction port 14a to the cylinder 1a or the cylinder head 2 of the engine E is attenuated.
  • the closing member 28 formed in a substantially ring plate shape is attached to the outside of the cooling fan 5 by the blower blade 5. a ⁇ Arrange so that it abuts 5a.
  • a boss 28 a is projected horizontally behind the closing member 28, and each boss 28 a is passed through each hole 25 ′ d of the cooling air guide member 25 ′, and the tip is
  • the bolt 30 which is in contact with the side wall 4 b of the flywheel 4 and which is longer than the front is fitted into each boss 28 a, and the closing member 28 is screwed to the flywheel 4.
  • the blocking member 28 blocks the space between the blower blades 5a from the outside, the air flows from the space between the blower blades 5a to the air guide port 14a during rotation of the blower blades 5a. Is not pushed out, and the cooling air W1 from the air introduction port 14a smoothly flows to the outer peripheral portion of the cooling fan 5, and furthermore, due to the configuration of the cooling air guide member 25 ', the cooling air The cooling air W2 merges with the cooling air W2 at the outer periphery of the blade 5a, and the merged air efficiently cools the cylinder 1a, the cylinder head 2 and the like of the engine E.
  • the cooling air guide member 25 ′ and the closing member 28 are not only formed separately from the blower blade 5 a as in this embodiment, but also attached to the blower blade 5 a, and are integrated with the blower blade 5 a. It can also be formed as desired. Further, it is conceivable to form the cooling air guide members 25 and 25 ′ and the closing member 28 integrally with the flywheel 4. 62167
  • a radiation fin 8b is provided on the inner peripheral surface facing the center hole 8a through which the crankshaft 3 passes.
  • Has formed. 8 c is a bolt hole for fastening the bolt to the bracket 8 for the engine body 1 and 8 d for the sword 7.
  • the heat radiation fins formed on the stay bracket 8 may be formed not only on the inner peripheral surface of the stay bracket 8 but also on other appropriate places.
  • the cooling air from the outlet of the cooling air passages 1 e and 1 g opening to the front surface of the engine body 1 is higher than the outlet.
  • a vertically flat guide plate facing the outlet of the cooling air passages 1e and 1g so as to be smoothly and intensively introduced into the generator D in the recess 4a of the flywheel 4 located at the upper part. 3 1 is provided.
  • the guide plate 31 is formed so as to surround the lower part of the left side of the bearing portion for the crankshaft 3 on the flywheel 4 side of the engine body 1 in a front view so as to surround the guide plate 31 in an arc shape in a front view.
  • the lower left end is opposed to the outlet of the side cooling air passage 1 g, and the lower end is opposed to the outlet of the bottom cooling air passage 1 g.
  • the space between the engine body 1 and the outer peripheral edge of the guide plate 31 is covered with a fan case 14, and furthermore, just above the side cooling air passage 1e outlet and the bottom cooling air passage 1g outlet
  • the shielding plates 31a and 31b extend substantially perpendicularly to the surface of the guide plate 31 and abut against the front surface of the engine body 1, respectively.
  • the closing plate 31a prevents the air from the side cooling air passage 1e from leaking directly above it, and the shielding plate 31 prevents the air from the bottom cooling air passage 1g from the outlet. It does not leak to the right.
  • the cooling air W2 from the outlet of the cooling air passages 1e and 1g is supplied to the guide plate 31 by the guide plate 31 and its shielding plate portions 31a31b and the fan case 14. It is guided toward the inner peripheral side when viewed from the front, and intensively flows into the recess 4 a of the flywheel 4.
  • the flow of the cooling air W 2 to the outer periphery of the cooling fan 5 is ensured, and the cooling effect of the cooling coil 7 a in the generator D by the cooling air W 2 is obtained.
  • cooling fan 5 with cooling air guide member 25 'and blocking member 28 attached to flywheel 4, radiation fin structure of stay bracket 8 and cooling air passage
  • the three structures of the structure in which the guide plate 31 is disposed to face 1 e ⁇ 1 g are combined, one or two of them may be selectively employed. Further, a cooling structure combining at least one of these three structures with the external auxiliary blowing blade 26 of the first embodiment or the internal auxiliary blowing blade 27 of the second embodiment may be employed.
  • the fan case 14 the space 32 above the cooling fan 5 is introduced into the cooling air W 1 from the air introduction port 11 a by the rotation of the blower blade 5 a, and the cooling air W 2 is joined there.
  • the bottom cooling air passage 1 g formed in the lower portion of the engine body 1 is low-pressure because the cooling fan 5 sucks the cooling air W 2 to the generator D by the cooling fan 5.
  • the fan case 14 is provided with a joint member 33 for communicating the high-pressure space 32 with the outside, and the low-pressure air is supplied to the bottom cooling air inlet 1 f opening on the bottom of the engine body 1.
  • a joint member 34 is provided to communicate the bottom cooling air passage 1 g with the outside, and the two joint members 33 and 34 are connected to each other by a tube or the like.
  • part of the cooling air in the high-pressure space 32 flows into the low-pressure bottom cooling air passage 1 g, and cools the oil pan 1 d and the stay coil 7 a, which are particularly hot, again.
  • the cooling efficiency is increased. That is, the oil pan 1 d ⁇ stay coil 7 a etc., which becomes particularly high in temperature, is arranged along the low pressure space, and by partially recirculating the air in the high pressure space into the low pressure space, these high temperature
  • the department is intensively and intensively cooled.
  • such a structure that connects the high-pressure space and the low-pressure space to the cooling fan 5 is adopted in the third embodiment.
  • the basic cooling structure described above is adopted.
  • the flywheel 4 in each of the embodiments described above is attached to the crankshaft 3 so that the side wall 4b is located outside (in front of) the generator D.
  • the engine generator has a flywheel 4 ′ fixed to the crankshaft 3 such that its side wall 4 ′ b is located inside (rearward) of the generator D, and therefore the flywheel 4 ′
  • a concave portion 4'a is arranged on the outside, and a rotor magnet 6 and a stay 7 are provided inside the concave portion 4'a to constitute a generator D.
  • the stay 7 is attached to a stator bracket 8 fixed to the fan case 14.
  • the side wall 4 ′ b of the flywheel 4 ′ is arranged between the generator D and the engine 1, and in the recess 4 ′ a outside the flywheel 4 ′, the stationary coil 7 ′
  • the inside (rear) of a is closed and the outer (front) is open.
  • a plurality of blower blades 5 a of the cooling fan 5 are attached to the outer end of the outer periphery of the flywheel 4 ′, and communicate the outside and the inside of the side wall 4 ′ b with the side wall 4 ′ b.
  • a plurality of ventilation holes 4'c are penetrated to cool the oil pan 1d, etc. through the cooling air passages 1e and 1g by the operation of the cooling fan 5 accompanying the rotation of the flywheel 4 '.
  • the cooling air W2 is guided to the outside of the side wall 4'b through the ventilation hole 4'c, and flows to the outer periphery of the cooling fan 5 while cooling the coil 7a.
  • the generator D mounted on the outside of the flywheel 4 ′ is cooled by the cooling air W 2 from the cooling air passages 1 e and 1 g, similarly to the generator D. Since the side wall 4'b of the flywheel 4 'is interposed between the engine 1 and the generator D, the heat from the engine 1 which becomes hot during operation is cut off by the side wall 4'b and the generator D Is not transmitted to As a result, the generator D is prevented from being heated by the heat of the engine 1, and the cooling effect of the cooling fan 5 can be further improved.
  • the generator D provided in the flywheel of the engine can be efficiently cooled even in a high-frequency high-power configuration using the rotor magnet 6 composed of a rare-earth magnet that is a ferromagnetic permanent magnet. A sufficient cooling effect can be obtained, and stable output and good durability can be maintained.
  • an engine generator including the generator D described above and capable of generating high-frequency power is housed in a movable soundproof case to form a generator unit.
  • a high-power high-frequency generator 44 was added to the conventional engine generator in which the generator D 'with the output of the commercial power supply shown in Figs. 32 and 33 was installed inside the flywheel 2 of the engine 1. Connected and configured power supply can be moved with wheels A conventional high-frequency generator unit installed on the above soundproof unit will be described.
  • the generator D 'provided on the flywheel 4 of the engine generator has a low frequency, so when it is used as a power source for a floodlight or a welding machine, a high-frequency generator 44 is used separately.
  • the engine output section of the engine generator that is, the engine output extraction section 3b at the end of the crankshaft 3 opposite the flywheel side. Therefore, the soundproof case 39 'needs to be long in the axial direction of the crankshaft 3 to accommodate the combined length of the engine generator and the length of the generator connected thereto. .
  • the exhaust muffler 35 5 ′ of the engine 1 along with the high frequency generator 44 on the left and right (3 6 ′
  • the axis of the exhaust muffler 35' must also be parallel to the axis of the crankshaft 3. Therefore, if the length of the high-frequency generator 44 (in the direction of the axis of the crankshaft 3) is reduced to shorten the length of the soundproof case 39 ', the length of the exhaust muffler 35' will be adjusted accordingly. It must be shortened, which reduces the soundproofing effect.
  • the arrangement of the exhaust muffler causes a trade-off between the compacting factor of the generator unit and the soundproofing factor.
  • a fuel tank 38 ' is disposed at the upper part of the soundproof case 39', and the fuel filler port 38'a of the fuel tank 38 'is located at a position higher than the upper end of the soundproof case 39'. It protruded upward.
  • the suspension member 39'b is formed in the fuel tank 38 'so as to protrude upward.
  • the generator unit is suspended by a crane hook or the like. The suspension member protruded upward from the upper end of the soundproof case 39 '. Therefore, since these interfere with each other, it has not been possible to stack the generator units vertically in the past.
  • axles 40 and 40 extending in the left-right axis direction are supported at the bottom of the soundproof case 39 in parallel to the front and rear, and the left and right ends of each axle 40 are provided.
  • the wheels 41 are fixed to each of them.
  • the inside of the soundproof case 39 is divided into upper and lower rooms, the upper room is a power room 39a, and the lower room is a ventilation duct. G 3 9b.
  • a hanging member 42 protrudes above the upper end surface of the soundproof case 39 (in the present embodiment, the hanging member 42 is directly attached to or formed on the soundproof case 39 instead of the fuel tank).
  • the generator unit can be hung on hooks of a crane.
  • an engine generator including the engine E and the generator D is installed in the power room 39a.
  • the bottom of the engine E that is, the bottom of the engine body 1 is raised above the floor of the soundproof case 39a, and a vibration isolating support member 37 is interposed between the engine E and the floor as shown in FIG. ing.
  • a wind guide duct 15 can be interposed between the bottom of the engine body 4 and the floor of the soundproof case 39a.
  • a fuel tank 38 is provided above the engine generator, and a fuel filler port 39 a with a cap thereof protrudes upward from an opening at an upper end surface of the soundproof case 39.
  • a wind collecting cover 36 is disposed on the opposite side of the flywheel 4 via the engine E, and the exhaust muffler 35 of the engine 1 is disposed therein.
  • a flow of cooling air mainly through the cooling air W1 (the cooling air W2 is also merged) is introduced through the cylinder portion 1a and the like, and cools the exhaust muffler 35.
  • the air is exhausted from the air outlet 39j which is opened on a part of the side surface of the soundproof case 39.
  • the exhaust muffler 35 is provided horizontally in a direction orthogonal to the axis of the crank shaft 3 on a horizontal plane.
  • the generator D is installed using the space in the recess 4 a formed in the flywheel 4, the engine generator including the engine E and the generator D is arranged in the axial direction of the crankshaft 3. The length from the outer end of the flywheel 4 to the end on the side opposite to the flywheel 4 of the engine E without the generator D is almost the same.
  • the exhaust muffler 35 is disposed in a direction orthogonal to the axis of the crankshaft 3, so that the exhaust muffler is not provided in the direction of the crankshaft 3. 3
  • the length from the furthest part of the engine E to the end of the engine generator on the opposite side of the flywheel 4 from the engine E can be kept short. 7 P
  • the length of the soundproof case 39 in this direction that is, the front-back length can also be reduced.
  • the left-right width of the soundproof case 39 is also small. It only needs to be set according to the left and right width of E, and it is not necessary to make it longer. Since the length of the engine E in the left-right direction, that is, the direction perpendicular to the crankshaft 3 is sufficiently large, the length of the exhaust muffler 35 is assumed to be within the left-right width of the engine E. Can be secured to the extent that the desired exhaust noise silencing effect can be obtained.
  • the engine generator of the present invention can be made compact and low noise when configuring a generator unit, despite having high output.
  • the generator unit can be easily moved and installed when used, and the storage space for storage can be reduced.
  • a plurality of ventilation openings 39 d are opened, and outside air as cooling air flows from the ventilation opening 39 d inside the ventilation duct 39 b. It is configured to take in
  • the ceiling of the ventilation duct 39 b (that is, the floor of the power room 39 a) communicates the ventilation duct 39 b with the power room 39 a in order from the air guiding port 39 d.
  • the opening of the cooling air inlet 3 9 e ⁇ 39 f ⁇ 39 g is provided, and the ventilation opening 39 f extends downward from the bottom cooling air inlet 1 f at the bottom of the engine E.
  • a ventilation duct 15 is fitted inside. Further, in the ventilation duct 39b, both sides of the ventilation port 39e.39f.39g and between the ventilation port 39g and the suction port 39d are closed. Further, as shown in FIG. 29, a partition plate 43 is provided.
  • the outside air introduced into the ventilation duct 39 b from the ventilation duct 39 d flows along the outer sides of the partition 43 to the counter-vent 39 d side, and at the end of the partition 43.
  • a part of the air flows into the power chamber 39a through the ventilation port 39e, and the air flows into the side cooling air passage 1e formed on the side wall of the engine body 1 of the engine E.
  • the anti-fra The cooling air W 2 is introduced through an inlet opening on the wheel side, and becomes the cooling air W 2.
  • the exhaust muffler 35 disposed above the ventilation port 39e or the cover 36 covering the exhaust muffler 35 can be cooled.
  • the wind that has passed without being introduced into the ventilation port 39 e is then surrounded by the notch on the anti-suction port 39 d side of the partition plate 43 inside the partition plate 43.
  • a part of which is introduced between the ventilation opening 39 f and the bottom cooling air bottom introduction opening 1 f at the bottom of the engine body 1 located just above the ventilation opening 39 f.
  • the cooling air flows into the bottom cooling air passage 1 g via the duct 15 and becomes the cooling air W 2, which is guided to the generator D by the cooling fan 5, and is connected to the oil pan 1 d of the engine E and the generator D. Station overnight cool 7 a etc. to cool.
  • the last ventilation opening 39 g has a large opening along the partition plate 43, and the cooling air from the suction opening 39 d arriving so far is introduced into the power room 39 a and the fan
  • the case 14 and the members arranged therearound are cooled from below, and are used as cooling air W 1 introduced into the fan case 14 from the air guide port 14 a of the human case 14.
  • FIGS. 30 and 31 disclose a configuration in which a generator unit having an engine generator stored in the soundproof case 39 described above can be stacked vertically.
  • FIG. 27 used in the description of the embodiment of the generator unit is used as an explanatory diagram common to the present embodiment.
  • the bottom of the soundproof duct 39 b is recessed upward near the center of the bottom of the soundproof duct 39 b using the space inside the ventilation duct 39 b, and the recess 39 h for the oil supply port and A recess 39 i is formed.
  • the positions, widths, and depths of the recesses 3 9 h and 39 i are set so that the oil supply port 38 a and the suspension member 42 can be fitted into them, respectively.
  • the refueling port 38a and the suspending member 42 provided at the top of the lower generator unit fit into the recesses 39h and 39i, respectively.
  • the recesses 39 h and 39 i are formed to be approximately the same size or slightly larger than the lubrication port 38 a and the suspension member 42, respectively.
  • the opening 38a and the suspension member 42 are locked in the recesses 39h and 39i, respectively, to prevent the generator units stacked on the upper stage from moving in the horizontal direction. ing.
  • the left and right edges of the upper end of the soundproof case 39 are, as shown in FIG.
  • the chamfers 39 c ⁇ 39 c of the soundproof case 39 of the lower generator unit correspond to the inner lower ends of the left and right wheels 4 1-4 1.
  • the upper and lower wheels of the soundproof case 39 of the lower generator unit are attached to the bottom of the upper soundproof case 39 of the upper generator unit. Alternatively, the wheels come into contact with the lower ends of the wheels 40 and 40, so that there is no space between the two generator units in the vertically stacked state, so that the vertical height can be suppressed and the wheels do not wobble left and right. I have.
  • each generator unit itself length in the direction of the crankshaft
  • it can be stacked compactly and stably in multiple stages up and down. Can be stored.
  • the recesses 39 h and 39 i that allow the stacking of the upper and lower parts are provided with the ventilation holes 39 e and 39 f and 39 g as shown in Figs. 28 and 29 described above. It can be formed even in the ventilation duct 39 b provided with the plate 43. That is, the vent holes 39 e ⁇ 39 f ⁇ 39 g, the partition plate 43 force, and the concave portions 39 h ⁇ 39 i are formed at positions avoiding these concave portions.
  • FIG. 34 an auxiliary generator 45 is connected to the engine output extraction portion 3b formed at the end of the crankshaft 3 on the side opposite to the flywheel 4, and is connected to the generator D by the engine E at the same time. It can be driven.
  • the auxiliary generator 45 is configured as, for example, an AC generator such as a commercial power supply that outputs 100 V'50 Hz / 60 Hz power.
  • the high-frequency AC generator D in the engine generator (in this case, the generator D 1 shown in FIG. 3 described above) is irradiated with light over a wide area during nighttime work outdoors, as shown in FIG.
  • auxiliary lighting is connected to the auxiliary generator 45 as a commercial power source connected to the engine generator, and in addition to irradiating the workplace with the floodlight, spotting the work area etc.
  • the work can be further facilitated in light of the objective, and the work efficiency can be improved.
  • connecting a power tool to the auxiliary generator 45 eliminates the need for a separate power supply, and saves time and labor for work preparation, thus improving work efficiency. Can be improved, and costs can be reduced.
  • the submersible pump when performing work at the water's edge, can be connected to the auxiliary generator 45 for use.
  • the lighting is connected to the auxiliary generator 45 to save the work.
  • This makes it easier to perform welding work in the light, and it is possible to connect a power tool that removes burrs and force after welding, and perform post-processing simultaneously with welding.
  • the welding work can be performed in a flow work, and the work efficiency can be improved.
  • the workability of the welding operation can be improved.
  • a hydraulic pump 47 is connected to the engine output section of the engine generator.
  • the camshaft 46 for driving the valve train which is geared with the crankshaft 3 in the crankcase 1c, has the end on the side opposite to the flywheel 4 on which the flywheel 4 is disposed protruding to the outside.
  • the engine output extraction section 46a is formed so that the load can be connected to the drive.
  • a hydraulic pump 47 is connected as the load.
  • FIGS. 36 and 37 show an engine generator of the present invention (in this case, provided with a generator D 1) to which a hydraulic pump 47 is connected, and a power source and a power source of a self-propelled floodlight.
  • This floodlight is equipped with an engine generator connected to a hydraulic pump 47 on a bogie frame 48 having a pair of left and right wheels 49 at the front and back, and is covered with a soundproof case 50.
  • An extendable column 51 is erected from the frame 48, and the column 51 supports a plurality of metal halide lamps (discharge lamps) 52.
  • the handle 53 is erected on the bogie frame 48, and the operator can move the floodlight by manually pushing the handle 53.
  • a traveling lever 56 is provided above 53.
  • a pair of left and right stand members 54 are attached to the lower end of the handle 53 so as to be rotatable. When the projector is stopped, it is lowered to ground.
  • a power source that connects a hydraulic pump 47 to an engine generator consisting of an engine E and a high-frequency AC generator D (D1), and a fuel tank 3 above it. 8 mag is provided.
  • the generator D 1 is used as a power source for the illumination of the metal halide lamp 52
  • the hydraulic pump 47 is used as a power source for a hydraulic motor 55 for traveling and a hydraulic motor 57 for raising and lowering the lamp described later.
  • the driving hydraulic motor 55 is connected to the left and right wheels 49 of one of the front and rear wheels of the wheels 49, 49, and 49 ', and as shown in FIG. 39, the fluid is supplied to the hydraulic pump 47.
  • the traveling control valve 61 is operated by the traveling lever 56 to control the output of the two traveling hydraulic motors 55, thereby stopping the wheels 49 in the normal rotation and the reverse rotation.
  • a hydraulic motor 57 for raising and lowering the ramp is mounted in the middle of the column 51, and is fluidly connected to a hydraulic pump 47 as shown in FIG.
  • the lifting mechanism of the metal halide lamp 52 will be described with reference to FIG.
  • the support 51 has a first cylinder 51a having a lower end fixed to a bogie frame 48, and a second cylinder 51b is fitted inside the second cylinder 51b to be slidable forward and backward, and a third cylinder 5 is fitted to the second cylinder 51b. 1c is fitted inside so that it can slide forward and backward, and the fourth cylinder 51d can be fitted inside the third ⁇ 51c so that it can slide forward and backward.
  • One end of a wire 59 is connected inside the fourth cylinder 51d, and the other end is provided at the output end of a hydraulic motor 57 for lifting and lowering mounted on the outer surface of the first cylinder 51a.
  • the wire 59 is wound around the winch 57a by the forward / reverse rotation of the winch 57a driven by the lifting hydraulic motor 57, and is fed out.
  • pulleys 60 are arranged outside the first cylinder 51a, inside the second cylinder 51b and the third cylinder 51c, respectively, and wires 59 are engaged. Turning You. Grooves are formed in the third cylinder 51c and the fourth cylinder 51d so as not to interfere with the pulleys 60 provided in the second cylinder 51b and the third cylinder 51c, respectively. I have.
  • the operation of automatically adjusting the irradiation angle can be performed, and labor such as pushing a heavy projector by hand and adjusting the height of the metal halide lamp 52 by hand can be omitted.
  • a floodlight it is possible to quickly irradiate an appropriate area for work, and to improve work efficiency.
  • an air compressor 63 as a load is shoe-connected to an engine output take-out portion 46a at the end of the cam shaft 46 of the engine E.
  • an air compressor 63 is connected to an engine generator in which the generator D is a high-frequency AC generator D2 for a welding machine shown in FIG.
  • a generator is connected and driven by a welding machine, and an air-driven tool is connected to the air compressor 63 to perform welding and other deburring work at the same time as welding, or to connect painting equipment.
  • painting can be performed immediately after welding.
  • the welding operation can be performed in a flow operation, and the operation efficiency can be improved.
  • such an air compressor 63 is connected to an engine generator having the high-frequency AC generator D 1 for the floodlight shown in FIG.
  • a projector can be connected to the machine D1 to illuminate it, irradiate the work place, and connect a tool or the like driven by air to the air compressor 63, so that work can be performed by the tool.
  • a tool can be connected to the air compressor 63 directly connected to the engine E while using the engine generator for the floodlight, and there is no need to prepare a separate drive source for the tool. This saves time and labor, improves work efficiency and reduces costs.
  • a high-pressure water pump 64 is connected as a load to the engine output extraction section 46a.
  • This engine generator is equipped with, for example, a generator D1 shown in Fig. 4 as a generator D, which illuminates the floodlight and irradiates the construction site. It can be used to wash construction machinery and the like that has completed work by spraying water. Alternatively, the surface of the object to be painted is washed before painting with the spray water from the high-pressure water pump 64 while using this engine generator for painting work and illuminating the floodlight with the generator D1. Or remove old paint for repainting. There is no need to separately prepare a drive source for the high-pressure water pump 64 other than the engine generator, which saves time and effort for work preparation, etc., thereby improving work efficiency and reducing costs. .
  • the hydraulic pump 47 shown in Fig. 35, the air compressor 63 shown in Fig. 40, and the high-pressure water pump 64 shown in Fig. 41 connected to the engine output port 46a all supply pressure. (Pressure supply device), and the pressure supplied by the device can be used in various ways. In addition, various loads, such as a motor, can be connected to the engine output extraction part 3b or 46a. Industrial applicability
  • the engine generator according to the present invention has a compact configuration that enables high-frequency power generation, is excellent in storage and transportability, and has a high frequency power supply in addition to a floodlight and a welding machine.
  • the compact configuration and the need to prepare other high-frequency generators are not required. It is possible to connect various other loads by using the engine output of the machine, so it is low cost. Demand will be high in such work.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

L'invention concerne un générateur de moteur dans lequel, dans une partie en creux (4a) du volant moteur (4) d'un moteur (E), des aimants de rotor (6) comprenant des aimants permanents ferromagnétiques sont installés fixement sur la surface périphérique intérieure du volant moteur (4); des bobines d'induit (7a) servant de pôles d'induit installés sur un inducteur (7) installé fixement sur un corps de moteur (1) grâce à un support (8) d'inducteur et disposés de manière à pouvoir émettre une puissance haute fréquence peuvent faire face aux aimants de rotor (6) pour former un générateur (D) dans la partie en creux (4a); une aube soufflante (5a) est installée à l'extérieur du volant moteur (4) de manière à former un ventilateur de refroidissement (5) et, dans le volant moteur (4), des trous de ventilation (4c) permettant une communication entre l'espace d'installation du ventilateur de refroidissement (5) avec la partie en creux (4c) sont formés de sorte que de l'air de refroidissement soit soufflé à partir des passages (1g, 1e) d'air de refroidissement du moteur formés dans le corps de moteur (1) vers le ventilateur de refroidissement (5) à travers le générateur (D) formé dans la partie en creux (4a) et les trous de ventilation (4c).
PCT/JP1999/002580 1998-05-26 1999-05-17 Generateur de moteur WO1999062167A1 (fr)

Applications Claiming Priority (12)

Application Number Priority Date Filing Date Title
JP14429298A JPH11341767A (ja) 1998-05-26 1998-05-26 フライホイール型発電機
JP10/144292 1998-05-26
JP10/144293 1998-05-26
JP14429398A JPH11341742A (ja) 1998-05-26 1998-05-26 フライホイール型発電機の冷却構造
JP14791398A JPH11343860A (ja) 1998-05-28 1998-05-28 エンジン発電機
JP14791298A JPH11341768A (ja) 1998-05-28 1998-05-28 フライホイール型発電機
JP10/147913 1998-05-28
JP10/147912 1998-05-28
JP11/11250 1999-01-20
JP11011250A JP2000213362A (ja) 1999-01-20 1999-01-20 フライホイ―ル型発電機の冷却装置
JP11011249A JP2000217307A (ja) 1999-01-20 1999-01-20 フライホイ―ル型発電機の冷却構造
JP11/11249 1999-01-20

Publications (1)

Publication Number Publication Date
WO1999062167A1 true WO1999062167A1 (fr) 1999-12-02

Family

ID=27548328

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1999/002580 WO1999062167A1 (fr) 1998-05-26 1999-05-17 Generateur de moteur

Country Status (1)

Country Link
WO (1) WO1999062167A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2226920A3 (fr) * 2009-03-06 2012-04-04 LichtBlick ZuhauseKraftwerk GmbH Système de cogénération avec un moteur à combustion à piston et une machine électrique
CN102678305A (zh) * 2011-03-10 2012-09-19 湖南华强电气有限公司 一种汽车发动机
CN103023209A (zh) * 2012-12-18 2013-04-03 重庆吉力芸峰实业(集团)有限公司 变频发电机
US20130169118A1 (en) * 2011-12-30 2013-07-04 Kawasaki Jukogyo Kabushiki Kaisha Electric Generator and Hybrid Vehicle Incorporating Electric Generator
CN112814805A (zh) * 2020-12-31 2021-05-18 重庆鼎工机电有限公司 用于变频发电机的动力总成

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Publication number Priority date Publication date Assignee Title
JPS49113104A (fr) * 1973-03-03 1974-10-29
JPS5176605U (fr) * 1974-12-13 1976-06-16
JPS51118028A (en) * 1975-04-10 1976-10-16 Kubota Ltd Instalation serves as generator and prime mover
JPS5721266U (fr) * 1980-07-08 1982-02-03
JPH0213136U (fr) * 1988-06-30 1990-01-26
JPH04331441A (ja) * 1991-04-30 1992-11-19 Yamaha Motor Co Ltd エンジンの磁石式交流発電機
JPH04368455A (ja) * 1991-06-14 1992-12-21 Moriyama Kogyo Kk オルタネータのステータコイル
JPH0561424U (ja) * 1992-01-28 1993-08-13 ヤンマーディーゼル株式会社 エンジン付き発電機の冷却構造
JPH071975A (ja) * 1993-06-17 1995-01-06 Honda Motor Co Ltd 電動走行車両のハイブリッド電源装置
JPH08223854A (ja) * 1995-02-14 1996-08-30 Yamaha Motor Co Ltd エンジン発電機
JPH08322198A (ja) * 1995-05-29 1996-12-03 Denyo Kk エンジン駆動永久磁石式溶接用発電機
JPH0946991A (ja) * 1995-07-27 1997-02-14 Oppama Kogyo Kk 磁石発電機の回転子および回転子抜き取り工具
JPH10127025A (ja) * 1996-10-15 1998-05-15 Yanmar Diesel Engine Co Ltd エンジン発電機

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49113104A (fr) * 1973-03-03 1974-10-29
JPS5176605U (fr) * 1974-12-13 1976-06-16
JPS51118028A (en) * 1975-04-10 1976-10-16 Kubota Ltd Instalation serves as generator and prime mover
JPS5721266U (fr) * 1980-07-08 1982-02-03
JPH0213136U (fr) * 1988-06-30 1990-01-26
JPH04331441A (ja) * 1991-04-30 1992-11-19 Yamaha Motor Co Ltd エンジンの磁石式交流発電機
JPH04368455A (ja) * 1991-06-14 1992-12-21 Moriyama Kogyo Kk オルタネータのステータコイル
JPH0561424U (ja) * 1992-01-28 1993-08-13 ヤンマーディーゼル株式会社 エンジン付き発電機の冷却構造
JPH071975A (ja) * 1993-06-17 1995-01-06 Honda Motor Co Ltd 電動走行車両のハイブリッド電源装置
JPH08223854A (ja) * 1995-02-14 1996-08-30 Yamaha Motor Co Ltd エンジン発電機
JPH08322198A (ja) * 1995-05-29 1996-12-03 Denyo Kk エンジン駆動永久磁石式溶接用発電機
JPH0946991A (ja) * 1995-07-27 1997-02-14 Oppama Kogyo Kk 磁石発電機の回転子および回転子抜き取り工具
JPH10127025A (ja) * 1996-10-15 1998-05-15 Yanmar Diesel Engine Co Ltd エンジン発電機

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2226920A3 (fr) * 2009-03-06 2012-04-04 LichtBlick ZuhauseKraftwerk GmbH Système de cogénération avec un moteur à combustion à piston et une machine électrique
CN102678305A (zh) * 2011-03-10 2012-09-19 湖南华强电气有限公司 一种汽车发动机
US20130169118A1 (en) * 2011-12-30 2013-07-04 Kawasaki Jukogyo Kabushiki Kaisha Electric Generator and Hybrid Vehicle Incorporating Electric Generator
US8766498B2 (en) * 2011-12-30 2014-07-01 Kawasaki Jukogyo Kabushiki Kaisha Electric generator with cooling system and hybrid vehicle incorporating electric generator
CN103023209A (zh) * 2012-12-18 2013-04-03 重庆吉力芸峰实业(集团)有限公司 变频发电机
CN112814805A (zh) * 2020-12-31 2021-05-18 重庆鼎工机电有限公司 用于变频发电机的动力总成

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