Abstract: A generator positionable on a support surface and including a frame, an internal combustion engine coupled to the frame, an electrical energy source, a fuel tank, and an output unit. The one-piece mounting member is coupled to the frame and has mounting arms that each provide a frame mount, an engine mount, and a source mount. The internal combustion engine is coupled to the mounting member and includes an output shaft that extends through a central portion and that is substantially normal to the support surface during generator operation. The electrical energy source has a rotor coupled to the output shaft for rotation therewith, and a stator coupled to the mounting member. The fuel supply supplies fuel to the engine, and the output unit communicates with at least one of the engine and the energy source.

Abstract: A system of a fuel cell bottoming an internal combustion engine. The engine exhaust gas may be combined in varying degrees with air and fed as input to a fuel cell. Reformer and oxidizers may be combined with heat exchangers to accommodate rich and lean burn conditions in the engine in peaking and base load conditions without producing high concentrations of harmful emissions.

Abstract: A power generator incorporates an engine and a generator driven by the engine. The generator incorporates a sound insulation cover that allows for efficient cooling of the various internal components. A fan draws in cooling air through one or more cooling air vents to cool a battery, a DC/DC converter, an electronic module, the engine, the generator, and the muffler. The insulation cover provides quiet operation and efficient cooling of the engine-driven generator.

Abstract: A power generator unit incorporates an engine and a generator driven by the engine. The generator incorporates a sound insulation cover that allows for efficient cooling of the various internal components. An engine crankcase cover mounts the generator close to the engine to promote a compact construction while allowing sufficient cooling of the engine, the generator, and a muffler. A fan draws in cooling air through one or more cooling air vents to cool a battery, an electronic control unit, the engine, the generator, and the muffler. The insulation cover provides quiet operation and efficient cooling of the power generator unit.

Abstract: A power generator unit incorporates an engine and a generator driven by the engine. The generator incorporates a multi piece sound insulation cover that allows for efficient cooling of the various internal components. A plurality of cooling paths are created within the cover and air is drawn into and through the cover by two separate fans. An engine cooling fan draws in cooling air through a generally dedicated cooling air vent(s) to cool an electronic control(unit, an engine cylinder, and a muffler. A generator cooling fan draws in cooling air through an additional cooling air vent(s) to cool an engine crankcase and the generator. The insulation cover provides quiet operation and efficient cooling of the power generator.

Abstract: A control apparatus for a hybrid vehicle which comprises an internal-combustion engine and a motor as a power source, and connects at least one of the internal-combustion engine and the motor to driving wheels of the vehicle through a transmission so as to transmit a driving force to the driving wheels, comprises: a target torque setting device which sets a target torque with respect to a crank end torque, which is a torque at the end of a crank shaft, of the power plant torque output from the power plant being the internal combustion engine and the motor, based on a change of accelerator pedal opening from fully opened to fully closed; and a torque allocation device which allocates the target torque corresponding to the accelerator pedal opening, to an engine torque instruction, being a required value with respect to the output torque from the internal combustion engine, and to a motor torque instruction, being a required value with respect to the output torque from the motor.

Abstract: Air provision systems for portable power modules trailerable over public roads and capable of providing at least approximately one megawatt of electrical power. In one embodiment, the portable power module includes a container housing a gaseous fuel motor, an electrical generator drivably connected to the motor, and a motor coolant radiator. In one aspect of this embodiment, the air provision system includes a first air circuit having a first air inlet to provide an ambient first air portion to the motor and the generator to the exclusion of the radiator, and a second air circuit including a second air inlet to provide an ambient second air portion to the radiator to the exclusion of the motor and the generator.

Abstract: A portable power generator unit incorporates an engine and a generator driven by the engine. The generator incorporates a multi piece sound insulation cover that allows for efficient cooling of the various internal components. Various access openings located in the multi piece sound insulation cover allow for easy servicing of the power generator. An access-opening lid acts as a tool to help service the internal combustion engine when draining and adding lubricant.

Abstract: A method of using internal combustion engine exhaust in a combined cycle power plant is disclosed, wherein the quality and distribution of exhaust to the boiler space of a steam generated electric power plant is controlled to achieve greater system efficiencies, and wherein exhaust pollutants are reduced. Outside air is blended only with that portion of the exhaust that passes through the burner ports as secondary or higher level combustion gas. The remainder of the exhaust is provided to the boiler space by a route other than through the burner.

Abstract: A vehicle has an internal combustion engine, which includes a reformer that reforms at least a portion of a liquid fuel by a dehydrogenating cyclization reaction to produce a reformed liquid fuel that is rich with aromatic hydrocarbon and has a high octane value as well as a reformed gaseous fuel that is rich with hydrogen. A gas-liquid separator is provided for separating the reformed liquid fuel and the reformed gaseous fuel from each other. Furthermore, a device is provided for supplying at least a portion of the reformed liquid fuel as a fuel to the internal combustion engine.

Abstract: In each of the soundproofed engine generators, the position at which the power generator body is coupled to the crank shaft is located at the end part on the crank shaft. In the soundproofed engine generator of the inverter type, the inverter unit is opposed to the power generator body at a position just upstream of the power generator body. Accordingly, when the inverter unit and the power generator body are removed, a continuous, long and large space for receiving the power generator body can be secured within the soundproof cover.

Abstract: A fuel tank assembly for supplying fuel to an engine that drives an electric generator. The fuel tank assembly is incorporated in a power generation system comprising an internal combustion engine; an electric generator driven by the engine; and a support frame for supporting the engine, the fuel tank assembly and the generator. The fuel tank is supported at an elevation above the engine and is not mounted to the engine. One embodiment of the fuel tank assembly comprises a rotomolded plastic fuel tank having a lattice of stiffening ribs projecting from its bottom, a heat shield disposed between the engine and the fuel tank and in contact with the stiffening ribs, and a plurality of fasteners that fasten the heat shield to the fuel tank. The heat shield/fuel tank assembly is mounted to the support frame.

Abstract: An apparatus having an engine-driven generator wherein the fuel tank, engine, air cleaner, muffler and battery are arranged in accordance with a space-saving design, and the size of the fuel tank is maximized. This is accomplished in part by placing the fuel tank and muffler at different elevations, so that the muffler does not limit the footprint of the fuel tank. In particular, the fuel tank is supported at an elevation above the engine, while the muffler is attached to and disposed on one side of the engine. The muffler occupies a space located between the battery and the air cleaner. The muffler outlet is disposed at an elevation lower than the elevation of the engine exhaust port.

Abstract: An engine generator including a soundproofing case that houses an engine and a generator therein. The engine includes an engine-side cooling fan and an engine-side inlet. The generator includes a generator-side cooling fan and a generator-side inlet. The engine generator further includes an engine-side partition and a generator-side partition fixedly disposed within the soundproofing case to define a chamber to be cooled that houses sections of the engine and the generator that are to be cooled, an engine-side air intake chamber that the engine-side inlet faces, and a generator-side air intake chamber that the generator-side inlet faces. The soundproofing case includes a cover part whose inside face is in intimate contact with the outer peripheries of the engine-side and generator-side partitions and has an exhaust vent in a part corresponding to the chamber to be cooled.

Abstract: An engine driven by high-pressure gas comprises: a high-pressure gas tank (7) for storing high-pressure gas; a piston (3) displaced when pressure is given from the high-pressure gas tank (7) to the piston (3), the piston (3) composing an expansion chamber (4) in which the high-pressure gas is expanded; and a crank shaft for converting a displacement of the piston (3) into a rotary motion, and fuel is burnt in the expansion chamber (4) when a volume of the expansion chamber (4) is expanded by the high-pressure gas supplied into the expansion chamber (4). Due to the foregoing, the piston (3) is displaced mainly by the pressure of high-pressure gas in the same manner as that of starting the engine, and the combustion of fuel is mainly used to prevent the temperature of gas in the expansion chamber (4) from being decreased.

Abstract: An engine operated machine system includes an engine, a working machine driven by the engine, and a waste-heat recovery unit for recovering the waste heat of the engine, each being accommodated in a box-shaped case. The case is provided with a partition wall which partitions the inside of the case into working-machine accommodating and electrical-equipment accommodating chambers, and which has a draft bore connecting the working-machine accommodating chamber to the electrical-equipment accommodating chamber.

Abstract: An engine generator includes an engine, a generator coaxially connected to the engine, a soundproofing case, and an exhaust muffler. The soundproofing case is divided into three, that is, a chamber to be cooled, and engine-side and generator-side air intake chambers on opposite sides of the chamber to be cooled. The chamber to be cooled houses the exhaust muffler and the majority of the engine and generator. Ventilation pathways are formed between an exhaust vent, which is provided in an upper part of the soundproofing case so as to open into the chamber to be cooled, and engine-side and generator-side outside air inlets which are provided in the soundproofing case so as to open into the engine-side and generator-side air intake chambers. Air is taken into the two air intake chambers from outside the soundproofing case via the two outside air inlets flows through the chamber to be cooled, and is discharged via the exhaust vent to the outside.

Abstract: A power generation system includes a power module and an external process module. The external process module may include at least one engine support element. The power module has at least one connection zone, and the external process module has at least one connection zone that is configured to align with the at least one connection zone of the power module. The aligned connection zones of the power module and the external process module permit relatively quick and inexpensive attachment of the external process module to the power module. The at least one engine support element may be an aftertreatment element.

Abstract: Frequency switching systems for changing the frequency of electrical power provided by portable power modules trailerable over public roads and capable of providing at least approximately one megawatt of electrical power. In one embodiment, the portable power module includes a shipping container housing a gaseous fuel motor drivably connected to an electrical generator. The frequency switching system includes a turbocharger operatively connected to the motor and having interchangeable components that allow selecting a first or second turbocharger configuration. The selected turbocharger configuration determines the RPM of the motor, which in turn determines the frequency of the electrical power produced by the generator. In one embodiment, the first turbocharger configuration results in a motor speed of 1500 RPM and a frequency of 50 Hz, and the second turbocharger configuration results in a motor speed of 1800 RPM and a frequency of 60 Hz.

Abstract: A power generator unit incorporates a generator driven by an engine. The engine has a fuel tank. A fuel petcock is connected through fuel hoses between the fuel tank and the engine. An insulating cover surrounds the generator, the engine and the fuel tank. A control panel is positioned on the insulating cover. A fuel control lever is pivotally mounted on the control panel. The fuel control lever is connected to the fuel petcock through a flexible transmitter to open and close the fuel petcock.

Abstract: A portable power generator unit incorporates an engine and a generator driven by the engine. The generator incorporates a multi piece sound insulation cover that allows for efficient cooling of the various internal components. Various access openings located in the multi piece sound insulation cover allow for easy servicing of the power generator. An access-opening lid acts as a tool to help service the internal combustion engine when draining and adding lubricant.

Abstract: A gaseous fuel generator comprises a controller is for supplying and adjusting power. A gas generating assembly is driven by the power supplied by the controller to electrolyze water into mixed gas of hydrogen and oxygen. A tube has an end communicating with the gas generating assembly for transporting the gaseous fuel. An adjusting valve is disposed on the tube for controlling the flow of the mixed gas in the tube. A pressure sensor is disposed on the tube for detecting the pressure of the mixed gas in the tube and sending signals of detecting to the controller to make the gas generating assembly adjusting the rate of electrolyzing, and a burner communicates with the tube to receive the mixed gas and burn the mixed gas.

Abstract: Containment systems for use with portable power modules trailerable over public roads and capable of providing at least approximately one megawatt of electrical power. In one embodiment, the portable power module includes a shipping container housing a gaseous fuel motor drivably connected to an electrical generator. In one aspect of this embodiment, the containment system includes a containment member having a substantially horizontal portion and a plurality of substantially vertical portions contiguously and sealably attached to the horizontal portion to form a vessel. The containment member is positioned inside the container beneath the motor and the generator and extends at least substantially over the entire bottom portion of the container conforming to the interior dimensions of the container to prevent liquids, such as coolants, lubricants, and water, from leaking out of the container onto adjacent property.

Abstract: An engine generator includes an engine, a generator having a generating unit including an outer rotor and a stator, and a cooling fan disposed between the engine and the generator. The generating unit is housed within a fan cover which is provided for accommodating the cooling fan, the stator being mounted to the inner side of the fan cover. As the single fan cover encloses the generating unit, a reduction in the number of components and an improvement in water-proof performance are achieved. The stator can be separated and replaced simply by removing the fan cover without dismounting other components, whereby maintenance is facilitated and the number of working steps is reduced.

Abstract: A generator structure is provided for generating electrical power. The generator structure includes an enclosure having first and second spaced sidewalls interconnected by first and second end walls so as to define an interior. First and second generator sets are positioned within the interior of the enclosure. Each generator set includes an engine, an alternator driven by the engine for generating the electrical power and a radiator operatively connected to the engine. Means are provided for synchronizing the electrical power generated by each alternator.

Abstract: A system provides electrical power and compressed air includes a wheeled hand truck frame, an engine, a compressor, a generator, and a reservoir having several horizontally disposed cylindrical tanks in fluid communication and arranged in one or a few vertical planes. A portion of a lower-most tank of the reservoir is below the plane including the axle for the wheels; and the respective centers of gravity of the engine, the fuel tank, and the reservoir are arranged for relatively greater stability. A control system for the engine, generator, and compressor provides priority response to air demand and/or priority response to electrical power demand by reducing lower priority loads on the engine prior to increasing engine speed. A throttle controller moves the engine throttle from high speed to low speed in response to low demand for compressed air in combination with low demand for electrical power. The throttle controller includes a low demand valve and throttle positioning air cylinder.

Abstract: The present invention is a double-walled tank for a generator set including an integral mounting assembly. The tank is formed of an outer basin having an open top, a bottom wall and a number of side walls that define an interior within the basin and form the exterior of the tank. An enclosed inner member having a top panel, a bottom panel and a number of side walls connecting the top and bottom panels is attached within the interior of the basin and provides a double-walled construction that serves to retain fuel within the tank when the external walls of the tank are damaged. An integral mounting assembly is attached to and extends across the basin over the inner member between the side walls of the basin and is configured to receive and support a generator, engine, and radiator to form a complete generator set.

Abstract: Containment systems for use with portable power modules trailerable over public roads and capable of providing at least approximately one megawatt of electrical power. In one embodiment, the portable power module includes a shipping container housing a gaseous fuel motor drivably connected to an electrical generator. In one aspect of this embodiment, the containment system includes a containment member having a substantially horizontal portion and a plurality of substantially vertical portions contiguously and sealably attached to the horizontal portion to form a vessel. The containment member is positioned inside the container beneath the motor and the generator and extends at least substantially over the entire bottom portion of the container conforming to the interior dimensions of the container to prevent liquids, such as coolants, lubricants, and water, from leaking out of the container onto adjacent property.

Abstract: The present invention uses an internal combustion engine operated at an air/fuel ratio richer than stoichiometric as a partial oxidation reformer in fuel cell power generation systems. Commonly available liquid or gaseous hydrocarbon or alcohol fuels, including “logistic” fuel in military applications, are converted to a product gas mixture containing hydrogen, carbon monoxide, and traces of light hydrocarbons. The product gas may be used directly or with minimum processing by high temperature fuel cells, or processed further for use in low temperature fuel cells. Advantages include high efficiency, adaptability to a variety of fuels, and quick system startup with immediate shaft power availability.

Abstract: It is an object of the invention to improve a cooling efficiency for cooling an engine generator by dividing a cooling air passage into two routes. The engine generator includes an engine, a generator, a muffler and a cooling fan, which are all enclosed in a housing. A first cooling air passage is formed adjacent to a cylinder of the engine. A second cooling air passage is formed beneath the engine, extending from the lower side of the cooling fan, passing through an area below the engine and arriving at the muffler. The second cooling air passage is formed between an oil pan and a vibration isolation support base plate, with the oil pan facing the second cooling air passage. In this way, an air supplied from the cooling fan is divided into two routes, with one cooling the cylinder head of the engine and the other the lower portion of the engine and the muffler.

Abstract: An engine generator is provided which improves a sturdiness and rigidity, sound insulation performance, and workability at inspecting of the whole structure, and further simplifies the structure through reducing the number of parts of a housing. An engine, a muffler, and a generator are disposed on a base, and included within the housing which has a side cover integrally formed with the base, a main cover comprising an upper surface and a side wall integrally formed each other, mainly used for an overhaul work, and a door cover mainly used for a daily inspection. A partition plate is vertically mounted between the engine and the muffler. A side plate is also vertically mounted inside an end of the housing. A tank bracket is mounted across between each upper portion of the side plate and the partition plate. The base, partition plate, side plate and tank bracket forms an engine room. The base, partition plate, and housing forms a muffler room.

Abstract: In an engine generator unit, an engine is connected with an outer-rotor/magnet type generator that has a cantilevered outer rotor functioning also as a substitute for an engine fly wheel. Cooling fan device is attached to the outer rotor. The generator and cooling fan device are covered with a fain cover that is made of die-cast aluminum alloy. The fan cover has, at its one end remote from the engine, a cooling-air inlet portion for introducing cooling air from the outside via the cooling fan device, and a recoil starter is attached to the cooling-air inlet portion. Also, the fan cover is connected at its other end to the engine with a gap formed therebetween for blowing the cooling air onto an outer peripheral surface of the engine. Supporting leg members are secured to the fan cover and engine, and these leg members are also mounted to a framework via shock-absorbing members.

Abstract: The container or trailer is separated into three inner compartments: a rear compartment in which the motor of the power generator is located, a front compartment in which the radiators for cooling the motor are located, with the radiators being operatively linked to the motor in a conventional fashion with cooling fluid pipes, and an intermediate compartment between the front and rear compartments. Air channels link the front compartment with the intermediate compartment, and the rear compartment with the intermediate compartment. A first fresh air intake port is provided in the trailer side wall in the rear compartment, for cooling the flywheel of the motor, and a second fresh air intake port is provided in the trailer side wall in the front compartment, for cooling the radiators. A warm air outlet port is provided in the trailer ceiling in the intermediate compartment.

Abstract: An engine generator has an engine and a muffler driven by the engine, both protected by an engine cover. The engine cover has a double-wall structure of an outer wall that protects the engine generator, an inner wall that forms a space for containing the engine and used as a cooling-air passage through which the engine and the muffler are cooled, and a hollow inner space formed between the outer and the inner walls.

Abstract: A backpack-type working machine comprises an engine on a shouldering frame and a swingable arm on a side thereof. A throttle lever on the arm controls the engine. A base of the arm is connected to a holder by means of an elastic pivot means including a bolt around which the arm swings and a spring. To allow the arm to move on a plane orthogonal to a swing direction (plane including a center line of a pivot means), the holder and the base of the arm are connected such that only parts opposing and oppositely of inclined surfaces thereof are in partial contact with each other.

Abstract: A tractor and trailer combination, the trailer having a cover for covering a load support surface thereof and a frame assembly is provided which includes a roller and a plurality of solar cell lengths for extending along the cover, the solar cell lengths being movably connected to one another for rolling up of the solar cell lengths about the roller and the roller being removably rotatably mounted relative to the frame assembly. The tractor and trailer combination is a type of vehicle having a planar surface for protectively covering a load carrying surface of the vehicle and collectively flexible solar cell lengths disposable as the outwardly facing side of the planar surface which may additionally include a gas motor fueled by cryogenic fuel, a climate control arrangement supplied with the cryogenic fuel, and a solar thermal energy system for cooling operations.

Abstract: A backup power supply includes a housing with a central compartment holding an electrical generator preferably an alternator and a hydrocarbon powered motor. The housing further includes first and second side compartments. The first side compartment stores the electronic components of the generator. A top covers all three compartments and has two side overhangs and a forward overhang. The side overhangs provide air inlets to the two side compartments which in turn permit passage of air into the central compartment. The forward overhang includes an air outlet which allows air to be directed from the central compartment to outside the housing. The alternator itself includes a fan which pulls air from one side compartment into the central compartment. The motor has a second fan that pulls air into the central compartment from the second side compartment. Further the exhaust from the motor is encased in a shroud which leads directly to a passage through the top to the forward outside opening.

Abstract: A gas engine operated machine includes a machine unit that includes an engine burning a gas fuel, and a working device driven by the engine, the machine unit being surrounded by and fixed to a rigid frame formed by framing an elongated frame material, and an upper portion of the machine unit being covered with a roof, such that the operated machine is easy to handle and attractive in appearance, and it is possible to effectively avoid another object colliding against piping parts such as a gas fuel pressure regulator and the like, or rain water, dust and the like striking against the piping parts, thereby stabilizing the operation of the piping parts and enhancing the durability of the piping parts. A roof includes an upper cover bulged upwards, and a lower cover mounted to a lower surface of the upper cover, and supported on a rigid frame through vibration-damping members.

Abstract: A portable generator system includes an interface mounting element for supporting a selected engine, from a plurality of engines, with a vertically oriented output shaft when the generator system is positioned on a substantially horizontal surface. A generator is directly coupled to the output shaft of the engine and rotates therewith about a common axis. The generator is selectable from a plurality of generators having different output power characteristics. A movable support cart supports interface, engine and generator and is formed of a single piece of tubular stock. The tubular stock is bent to form two substantially parallel, displaced, U-shaped regions bounded by a third U-shaped region substantially perpendicular thereto wherein the interface element, the selected engine and the selected generator are supported and protected. The cart supports first and second displaced wheels which rotate about a common axis which extends between the first and second regions, parallel to the third region.

Abstract: An engine generator includes an engine, a generator having a generating unit including an outer rotor and a stator, and a cooling fan disposed between the engine and the generator. The generating unit is housed within a fan cover which is provided for accommodating the cooling fan, the stator being mounted to the inner side of the fan cover. As the single fan cover encloses the generating unit, a reduction in the number of components and an improvement in water-proof performance are achieved. The stator can be separated and replaced simply by removing the fan cover without dismounting other components, whereby maintenance is facilitated and the number of working steps is reduced.

Abstract: A transmission control apparatus is used with a vehicle having an internal combustion engine, a transmission connected to the engine and having a plurality of gear positions, and a generator which is disposed between the transmission and drive wheels and which is capable of generating electric power through regenerative braking during deceleration of the vehicle. The control apparatus operates to detect a revolution speed of the internal combustion engine, and to place the transmission in a highest gear position selected from one or more gear positions that enable the engine revolution speed to be maintained at a level not lower than a predetermined lower limit above which the engine can operate by itself (i.e., re-start), when the generator generates electric power through regenerative braking.

Abstract: An engine generator has an engine and a muffler driven by the engine, both protected by an engine cover. The engine cover has a double-wall structure of an outer wall that protects the engine generator, an inner wall that forms a space for containing the engine and used as a cooling-air passage through which the engine and the muffler are cooled, and a hollow inner space formed between the outer and the inner walls.

Abstract: The apparatus is an enclosed engine generator assembly with air intake and air discharge openings into the enclosure in which the engine is installed and the radiator for engine cooling moved from the conventional vertical position in front of the engine to a horizontal orientation above the generator. The arrangement permits an assembly with a shorter overall length, but no significant increase in the height, and thereby facilitates installation aboard vehicles.

Abstract: A portable generator system includes an interface mounting element for supporting a selected engine, from a plurality of engines, with a vertically oriented output shaft when the generator system is positioned on a substantially horizontal surface. A generator is directly coupled to the output shaft of the engine and rotates therewith about a common axis. The generator is selectable from a plurality of generators having different output power characteristics. A movable support cart supports interface, engine and generator and is formed of a single piece of tubular stock. The tubular stock is bent to form two substantially parallel, displaced, U-shaped regions bounded by a third U-shaped region substantially perpendicular thereto wherein the interface element, the selected engine and the selected generator are supported and protected. The cart supports first and second displaced wheels which rotate about a common axis which extends between the first and second regions, parallel to the third region.

Abstract: In a hybrid vehicle with an internal combustion engine and a motor mounted thereon, operation of the internal combustion engine stops when a battery has a large remaining charge, so that inspection of the internal combustion engine can not be carried out under such conditions. The present invention controls the internal combustion engine to drive in an inspection mode that is different from a normal driving state at the time of inspection of the internal combustion engine. A control unit mounted to control operation of the internal combustion engine and the motor carries out an inspection control routine in the following manner. The inspection of the internal combustion engine is carried out while a terminal T of a diagnosis connector is connected with a terminal E. The control procedure thus keeps the internal combustion engine driving irrespective of the remaining charge of the battery while the terminals T and E are connected with each other.

Abstract: A portable gasoline generator, constructed with an engine and a generator, provides a lightweight and compact size for easy storage and carrying by minimizing its weight and size of the alternator (generator) thereof. The generator includes a generator case which houses a stator and a rotor unit that is coaxially coupled with a driving end of the crankshaft. The rotor unit includes a rotor cap and a plurality of arc-shaped rotor magnets made of rare-earth metal circularly attached to an inner circumferential surface of a surrounding ring of the rotor cap. The rotor cap is constructed to function as an exhausting fan by puncturing a plurality of fan wings aligned radially and forming a plurality of fan vents thereon. The stator is coaxially affixed to a generator cup of the generator case, wherein the stator is coaxially positioned within the rotor cap that the rotor magnets are arranged to coaxially surround the stator.

Abstract: An engine operated working machine includes an engine and a working machine to be driven by the engine surrounded by a soundproof case. An exhaust compartment housing a muffler is formed in the soundproof case. An exhaust pipe connected with the muffler is bent in a direction so as to direct exhaust gas discharged therefrom away from an exhaust air opening of the exhaust compartment and has an opening positioned apart from the exhaust air opening. Cooling air forced into the exhaust compartment flows around the muffler and the exhaust pipe to cool them. Exhaust gas discharged from the exhaust pipe into the exhaust compartment is mixed with the cooling air to change a discharging direction thereof and is then discharged outside of the soundproof case through the exhaust air opening.

Abstract: A portable generator system includes an interface mounting element for supporting a selected engine, from a plurality of engines, with a vertically oriented output shaft when the generator system is positioned on a substantially horizontal surface. A generator is directly coupled to the output shaft of the engine and rotates therewith about a common axis. The generator is selectable from a plurality of generators having different output power characteristics. A movable support cart supports interface, engine and generator and is formed of a single piece of tubular stock. The tubular stock is bent to form two substantially parallel, displaced, U-shaped regions bounded by a third U-shaped region substantially perpendicular thereto wherein the interface element, the selected engine and the selected generator are supported and protected. The cart supports first and second displaced wheels which rotate about a common axis which extends between the first and second regions, parallel to the third region.

Abstract: An engine generator includes an engine having an intake device and an exhaust device which are connected to an engine body, a generator connected to the engine, and a fuel tank for supplying fuel to the engine. The engine, the generator and the fuel tank are mounted on a frame. In this engine generator, the intake device and the exhaust device are connected to an upper portion of the engine body having a cylinder axis extending vertically to protrude to opposite sides from the engine body, and the fuel tank is disposed sideways of the engine body and the generator below the intake device or the exhaust device. Thus, when a vertical engine is used, the fuel tank can be effectively disposed to avoid the production of a wasteful space, thereby providing reductions in size, weight and cost.

Abstract: A backpack type power working machine includes a movable stopper for restricting the turning angle of an internal combustion engine unit which is supported on a backpack frame so that it turns about a longitudinal axis. As a result, the turning angle restriction of the internal combustion engine unit can be released by just moving the movable stopper, whereby a job efficiency can be improved.