US20110303482A1 - Outdoor power generating apparatus - Google Patents

Outdoor power generating apparatus Download PDF

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Publication number
US20110303482A1
US20110303482A1 US13/159,715 US201113159715A US2011303482A1 US 20110303482 A1 US20110303482 A1 US 20110303482A1 US 201113159715 A US201113159715 A US 201113159715A US 2011303482 A1 US2011303482 A1 US 2011303482A1
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United States
Prior art keywords
passage
sound absorbing
housing
diversion
weir
Prior art date
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Abandoned
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US13/159,715
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English (en)
Inventor
Tomoaki Niwa
Hiroshi Kamiya
Yoshinobu Nakano
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Aisin Corp
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Aisin Seiki Co Ltd
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Filing date
Publication date
Application filed by Aisin Seiki Co Ltd filed Critical Aisin Seiki Co Ltd
Assigned to AISIN SEIKI KABUSHIKI KAISHA reassignment AISIN SEIKI KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KAMIYA, HIROSHI, NAKANO, YOSHINOBU, Niwa, Tomoaki
Publication of US20110303482A1 publication Critical patent/US20110303482A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation

Definitions

  • This disclosure generally relates to an outdoor power generating apparatus having a configuration of preventing snow including powder snow and the like, rainwater and the like from entering into a housing of the outdoor power generating apparatus.
  • JPH11-200951A Disclosed in JPH11-200951A is a co-generation device having two ambient air inlet passages, one of which is used for natural conversion ventilation for an engine compartment and the other one is used for forced cooling of the engine compartment in order to cool down a driving portion of a forced cooling electric fan, for the purpose of prolonging a motor life.
  • JP2006-09678A Disclosed in JP2006-09678A is a co-generation apparatus having an engine compartment ventilation passage, which is in communication with a radiator cooling chamber having a large fan, in order to ease an actuation condition of an engine compartment ventilation fan for the purpose of reducing power consumption.
  • JP2007-172946A Disclosed in JP2007-172946A is a fuel cell enclosure and a sound suppression panel having an inner wall and an outer wall, which are used for an inner apparatus, so as to form a double wall structure in order to increase a sound suppression performance. Furthermore, according to the fuel cell enclosure and the sound suppression panel disclosed in JP2007-172946A, ambient air, which is used for ventilation, is guided to flow through a clearance formed between the inner wall and the outer wall.
  • an outdoor power generating apparatus is installed outdoor. Therefore, in a case where a weather condition is not moderate, snow (including powder snow), rainwater and the like may enter into a housing of the outdoor power generating apparatus from an exhaust outlet.
  • the outdoor power generating apparatus disclosed in JPH11-200951A, JP2006-09678A and JP2007-172946A does not have a sufficient configuration for preventing the snow such as the powder snow, the rainwater and the like from entering into the housing.
  • moisture may accelerate deterioration of a member, a component and the like provided within the housing.
  • an outdoor power generating apparatus includes a housing including a generator chamber and a side wall portion, a power generation source configured with an engine-type generator or a fuel cell provided within the generator chamber of the housing, a ventilation fan provided within the housing, and an exhaust passage provided within the housing and through which a gas remaining within the generator chamber is exhausted to an outside of the housing as an exhaust gas
  • the exhaust passage includes a sound absorbing duct formed by a sound absorbing material used for forming a curved passage, which is connected to the generator chamber so as to be in communication with the generator chamber and extends so as to curve, a weir member provided at a downstream side of the sound absorbing duct in a flow direction of the exhaust gas, a weir passage defined by the weir member, a diversion passage provided at a downstream side of the weir member in the flow direction of the exhaust gas and changing the flow direction of the exhaust gas so as to be orthogonal to a direction along which the exhaust gas flows towards the weir passage from an
  • an outdoor power generating apparatus includes the housing including the generator chamber and the side wall portion, the power generation source configured with the engine-type generator or the fuel cell provided within the generator chamber of the housing, the ventilation fan provided within the housing, and the exhaust passage provided within the housing and through which the gas remaining within the generator chamber is exhausted to the outside of the housing as the exhaust gas, wherein the exhaust passage includes the sound absorbing duct formed by the sound absorbing material used for forming the curved passage, which is connected to the generator chamber so as to be in communication with the generator chamber and extends so as to curve, the weir member provided at the downstream side of the sound absorbing duct in the flow direction of the exhaust gas and including the inclined wall surface, the weir passage defined by the weir member and the weir frame, the diversion passage connected to the weir passage so as to be in communication with the weir passage, and the exhaust port provided at the end portion of the diversion passage and opening at the side wall portion of the housing so as to be exposed to the ambient air, the exhaust gas
  • FIG. 1 is a diagram schematically illustrating a configuration of an inside of a housing of an outdoor power generating apparatus according to a first embodiment
  • FIG. 2A is an exploded perspective view illustrating a configuration of an exhaust passage of the outdoor power generating apparatus according to the first embodiment
  • FIG. 2B is a partially enlarged cross-sectional diagram of a diversion passage of the outdoor power generating apparatus illustrated in FIG. 2A ;
  • FIG. 3 is an exploded perspective view illustrating a configuration of a sound absorbing duct of the outdoor power generating apparatus according to the first embodiment
  • FIG. 4 is a cross-sectional diagram illustrating the configuration of the exhaust passage of the outdoor power generating apparatus according to the first embodiment
  • FIG. 5A is a cross-sectional diagram illustrating the configuration of the exhaust passage of the outdoor power generating apparatus according to the first embodiment
  • FIG. 5B is an enlarged cross-sectional diagram of a shuttering portion according to a modified example of the power generating apparatus of the first embodiment.
  • FIG. 6 is an enlarged perspective view illustrating an exhaust passage of an outdoor power generating apparatus according to another embodiment.
  • a sound absorbing material which is used to configure a sound absorbing duct, has hydrophilicity or water repellency on a surface of the sound absorbing duct exposed to a curved passage.
  • An area of an exhaust passage located relatively close to a generator chamber is formed to have the hydrophilicity.
  • an area of the exhaust passage located relatively close to an exhaust port is formed to have hydrophobicity.
  • the area of the exhaust passage located relatively close to the generator chamber is formed to have the hydrophobicity and the area of the exhaust passage located relatively close to the exhaust port is formed to have the hydrophilicity.
  • the curved passage is formed so as to two-dimensionally or three-dimensionally curve. More specifically, the curved passage is curved so as to from an S-shape, an M-shape, a W-shape, an L-shape or the like. Furthermore, the sound absorbing material used for the sound absorbing duct does not necessarily have the hydrophilicity or the water repellency.
  • a diversion passage is defined by an inner wall surface of a side wall of a housing so as to lead an exhaust gas to flow downwardly in a direction of gravity. More specifically, the diversion passage is formed so as to upwardly extend in a direction opposite to the direction of gravity along the inner wall surface of the side wall of the housing from the exhaust port of the housing. Furthermore, the diversion passage includes a sound absorbing body formed by a sound absorbing material. The sound absorbing body has the hydrophilicity or the water repellency on a surface thereof exposed to the diversion passage.
  • the diversion passage is defined by the side wall of the housing and a diversion member facing the side wall of the housing.
  • a value obtained by dividing LA by DA may be set in a range from five to one hundred (including five and one hundred). Accordingly, snow including powder snow and the like, rainwater and the like entering into the diversion passage from the exhaust port may not be allowed to pass through the diversion passage.
  • the power generating apparatus is installed outdoor and is configured so that an engine 20 actuates a generator 22 (i.e. an engine-type generator). Furthermore, the power generating apparatus is adapted to a cogeneration system, which is configured so as to use exhausted heat of the engine 20 . As illustrated in FIG. 1 , the power generating apparatus includes a housing 1 , which is formed in a rectangular box shape and which includes a generator chamber 10 serving as an engine compartment (i.e. an engine room), a power generation source 2 provided at the generator chamber 10 of the housing 1 , a ventilation fan 3 (see FIG.
  • the housing 1 includes a first exterior panel 12 (a side wall portion) extending in a vertical direction of the housing 1 and a second exterior panel 14 (the side wall portion) extending in the vertical direction so as to be in parallel with the first exterior panel 12 while keeping a distance therefrom.
  • An air intake port 120 is formed at an upper portion of the second exterior panel 14 .
  • the power generation source 2 is provided within the generator chamber 10 of the housing 1 . Furthermore, the power generation source 2 includes the engine 20 and the generator 22 .
  • the engine 20 is configured so as to be driven in a manner where a gas fuel or a liquid fuel is combusted together with air.
  • the generator 22 is provided within the generator chamber 10 of the housing 1 and is rotatably actuated by a driving shaft of the engine 20 . Accordingly, in a case where the engine 20 is actuated and the generator 22 is driven in response to an actuation of the engine 20 , an electric energy is generated.
  • FIG. 2 Illustrated in FIG. 2 is an exploded perspective view of the exhaust passage 4 through which the exhaust gas of the engine 20 is discharged into ambient air (i.e. outside air).
  • the exhaust passage 4 includes a sound absorbing duct 5 , a weir member 6 , a weir passage 62 , a diversion passage 7 , and an exhaust port 8 .
  • the sound absorbing duct 5 is formed by a porous sound absorbing material (e.g. porous medium such as urethane form), which is used to form a curved passage 50 .
  • the curved passage 50 is formed to be in communication with the generator chamber 10 and so as to extend in a curved shape.
  • the weir member 6 includes a shuttering portion 61 , which is provided at a downstream side of the sound absorbing duct 5 and which is made of a sound absorbing material.
  • the weir passage 62 is defined by the weir member 6 and the shuttering portion 61 .
  • the diversion passage 7 is provided at a downstream side of the shuttering portion 61 . Furthermore, the diversion passage 7 is formed so as to change a direction of a flow of the exhaust gas (i.e. a direction indicated by arrows A 5 and A 6 ) from an outlet opening 50 p of the curved passage 50 towards the weir passage 62 to a direction orthogonal to the direction of the flow of the exhaust gas (i.e.
  • the exhaust port 8 is provided at an end portion (e.g. a lower end portion) of the diversion passage 7 and opens at the first exterior panel 12 (the side wall) of the housing 1 so as to be exposed to the outside of the housing 1 (i.e. so as to be exposed to the ambient air). Furthermore, the exhaust port 8 is formed to open at a lower end portion 12 d of the first exterior panel 12 .
  • the exhaust port 8 includes plural laterally-elongated holes 80 , which are formed so as to extend in a lateral direction (i.e. a horizontal direction) while being in parallel with each other.
  • the exhaust port 8 further includes plural cover portions 81 for covering an upper portion of respective laterally-elongated holes 80 . Additionally, each of the cover portions 81 is formed so as to downwardly incline in an outward direction in order to prevent the snow, the rainwater and the like from entering into the housing 1 from each of the laterally-elongated holes 80 .
  • a configuration of the exhaust port 8 is not limited to the above-described configuration example.
  • the laterally-elongated holes 80 may be modified as vertical-elongated holes or round-shaped holes.
  • the sound absorbing duct 5 includes a duct cover 51 , a duct side wall portion 52 and a duct ceiling portion 54 .
  • the duct cover 51 which serves as a case, is made of metal or resin.
  • the duct side wall portion 52 is lined at an inner wall surface of the duct cover 51 and is made of a porous and sound absorbing material (e.g. foamed urethane resin).
  • the duct ceiling portion 54 includes an air regulation guide 53 having an inclined surface and made of a porous and sound absorbing material (e.g. foamed urethane resin).
  • the duct ceiling portion 54 is fitted to an upper opening 52 u of the duct side wall portion 52 while allowing the duct ceiling portion 54 to be attached to and detached from the upper opening 52 u. In a case where the duct ceiling portion 54 is removed, the upper opening 52 u of the duct side wall portion 52 is exposed, which may facilitate cleaning, maintenance and the like of the duct side wall portion 52 .
  • the air regulation guide 53 includes the inclined surface, which inclines upwardly relative to the horizontal direction indicated by an arrow A 3 in order to smoothly guide the fuel gas to flow.
  • the duct cover 51 includes first, second, third and fourth cover wall portions 51 a, 51 b, 51 c and 51 d, and a bottom wall portion 51 e.
  • the duct cover 51 also includes a fan opening 51 i opening downwardly so as to face the ventilation fan 3 and an outlet opening 51 p opening laterally.
  • the duct side wall portion 52 is made of the porous sound absorbing material.
  • the duct side wall portion 52 includes the curved passage 50 bending in multiple directions, a first protruding wall portion 55 , a second protruding wall portion 56 , and a protruding wall portion 57 .
  • the first protruding wall portion 55 protrudes towards the curved passage 50 .
  • the second protruding wall portion 56 protrudes towards the curved passage 50 while facing the first protruding wall portion 55 .
  • the third protruding wall portion 57 protrudes towards the curved passage 50 while facing the first and second protruding wall portions 55 and 56 .
  • the curved passage 50 includes an S-shape passage 50 s, an inlet opening 50 i, and the outlet opening 50 p.
  • the S-shape passage 50 s is formed to be curved in an S-shape in a plan view.
  • the inlet opening 50 i opens downward to the ventilation fan 3 in the vicinity of an inlet of the S-shape passage 50 s so as to face the fan opening 51 i (which also serves as an inlet opening of the duct cover 51 ) of the duct cover 51 .
  • the outlet opening 50 p opens laterally in the vicinity of an outlet of the S-shape passage 50 s while facing the outlet opening 51 p of the duct cover 51 .
  • the gas in the generator chamber 10 having heat flows upwardly in the direction indicated by the arrows A 1 and then in a direction indicated by an arrow A 2 through the inlet openings 50 i and 51 i. Then, the gas entered into the sound absorbing duct 5 is guided to flow in the direction indicated by the arrow A 3 , in a direction indicated by an arrow A 4 , then in the direction indicated by the arrow AS through the S-shape passage 50 s while flow loss is controlled to be a minimum level by means of the air regulation guide 53 having the inclined surface. The gas is finally discharged from the outlet opening 50 p.
  • the exhaust gas flows three-dimensionally by turning multiple times within the duct side wall portion 52 , a sufficient flow distance of the gas in the duct side wall portion 52 is ensured while achieving a downsize of the duct side wall portion 52 and increasing a sound absorption performance including a sound reduction.
  • the first, second, and third protruding wall portions 55 , 56 , and 57 are provided at different portions at the curved passage 50 so as to face one another while forming the curved passage 50 .
  • a flow direction of the exhaust gas flowing through the exhaust passage 4 is changed multiple times, so that the sufficient flow distance of the exhaust gas may be ensured while achieving a downsize of the sound absorbing duct 5 . Accordingly, the sound absorption performance including the sound reduction may be obtained.
  • FIG. 3 the first, second, and third protruding wall portions 55 , 56 , and 57 are provided at different portions at the curved passage 50 so as to face one another while forming the curved passage 50 .
  • each of the first, second, and third protruding wall portions 55 , 56 , and 57 is formed to have a sufficient thickness and so as to extend in a height direction (i.e., in the direction of gravity, a direction indicated by an arrow G).
  • the first, second, and third protruding wall portions 55 , 56 , and 57 have functions to forcibly change the direction of the exhaust gas flowing through the curved passage 50 and to reinforce the porous duct side wall portion 52 .
  • the diversion passage 7 is defined by an inner wall surface 12 i of the first exterior panel 12 constituting the side wall of the housing 1 , and a diversion member 70 formed in a thin frame shape.
  • the diversion member 70 includes a frame body 71 , a vertically elongated wall portion 72 and an opening portion 73 .
  • the frame body 71 is formed in a vertically elongated rectangular shape.
  • the frame body 71 includes a flange portion 71 a that extends outwardly.
  • the vertically elongated wall portion 72 extends in the vertical direction (i.e.
  • the length LA is set to be sufficiently greater than the thickness DA.
  • the length DA corresponds to a size of the diversion member 70 in the direction orthogonal to the direction of gravity.
  • the diversion member 70 is formed so as to extend in the height direction (i.e. the vertical direction, the direction of gravity).
  • a value obtained by dividing the length LA by the thickness DA i.e. LA/DA
  • LA/DA may be set to fall within a range from 5 and 100, specifically, from 5 and 50, more specifically, from 6 and 20.
  • the diversion passage 7 formed by the diversion member 70 may be formed as a vertically elongated thin passage. Accordingly, the snow such as the powder snow, the rainwater and the like entering into the diversion passage 7 from the exhaust port 8 is unlikely to flow upwardly through the diversion passage 7 .
  • the power generating apparatus is configured so that the snow including the powder snow, the rainwater, and the like entering into the diversion passage 7 from the exhaust port 8 is discharged to the outside of the housing 1 from the laterally elongated hole 80 arranged at the lowest position out of plural laterally elongated holes 80 .
  • the diversion member 70 is formed into the vertically elongated shape in order to ensure the flow distance of the diversion member 70 .
  • the snow, the rainwater, and the like entering into the exhaust port 8 may be prevented from reaching the opening portion 73 , the weir passage 62 , the curved passage 50 in the housing 1 , and further, the engine 20 and the generator 22 accommodated in the generator chamber 10 serving as the engine compartment.
  • a length from a lower end portion 8 d of the exhaust port 8 to a lower end portion of the weir passage 62 i.e.
  • a top portion 61 m of the weir portion 61 is defined as H 1 , the length H 1 is set to be greater than the thickness DA and smaller than the length LA (LA>H 1 >DA). As illustrated in FIG. 4 , the opening portion 73 of the diversion member 70 faces the weir passage 62 .
  • a value obtained by dividing the length H 1 by the thickness DA may be set so as to be substantially equal to the value obtained by dividing the length LA by the thickness DA (LA/DA).
  • the weir member 6 is positioned at the downstream side of the sound absorbing duct 5 and at the upstream side of the diversion member 70 in the flow direction (i.e. the direction indicated by the arrow A 5 and the direction indicated by the arrow A 6 ) of the exhaust gas from the engine 20 .
  • the weir member 6 includes a weir frame 60 having a rectangular shape, the shuttering portion 61 upwardly projecting from a lower portion 60 d of the weir frame 60 to the top portion 61 m, and the weir passage 62 positioned above the shuttering portion 61 and opening laterally.
  • the shuttering portion 61 may be made of the porous and sound absorbing material (e.g.
  • the weir member 6 is arranged in the vicinity of the outlet opening 50 p of the sound absorbing duct 5 so as to face the outlet opening 50 p.
  • a sound absorbing body 9 made of a sound absorbing material (e.g. a porous foam material such as a foamed resin, a foam metal and the like) is formed at the diversion passage 7 .
  • a porous material having foam cells intercommunicating with each other or a porous material having independent foam cells may be used as the porous foam material used for the sound absorbing body 9 .
  • a sound absorbing property of thereof may be ensured and further, increased.
  • the sound absorbing body 9 includes a first sound absorbing member 9 f, a second sound absorbing member 9 s and a third sound absorbing member 9 t.
  • the first sound absorbing member 9 f is attached on the inner surface 12 i of the first exterior panel 12 at a portion facing opposite to the outside of the housing 1 so as to be exposed to the diversion passage 7 .
  • the second sound absorbing member 9 s is attached on an inner wall surface 72 i of the vertically elongated wall portion 72 of the diversion member 70 .
  • the third sound absorbing member 9 t is formed between the first sound absorbing member 9 f and the second sound absorbing member 9 S.
  • the inner wall surface 72 i of the diversion member 70 is covered with the sound absorbing material except for the opening portion 73 .
  • the diversion passage 7 is formed to have an elongated shape so as to extend in a height direction (i.e. the direction of gravity indicated y the arrow G) between the exhaust port 8 and the weir passage 62 . Accordingly, the diversion passage 7 connects the exhaust port 8 of the housing 1 and the weir passage 62 so as to establish a communication therebetween.
  • the diversion passage 7 is formed to extend towards the weir passage 62 in a direction opposite to the direction of gravity indicated by the arrow G along the inner wall surface 12 i of the first exterior panel 12 (i.e. the side wall portion) of the housing 1 and the vertically elongated wall portion 72 of the diversion member 70 .
  • the power generating apparatus performs a power generating operation
  • the fuel and the air used for a combustion operation are supplied to a combustion chamber of the engine 20 , thereby driving the engine 20 .
  • the generator 22 is actuated in response to the actuation of the engine 20 , thereby generating an electric power.
  • Air which has heat emitted from the engine 20 and which remains within the generator chamber 10 , is used as the exhaust gas and flows through the exhaust passage 4 in response to an actuation of the ventilation fan.
  • the exhaust gas flows from the inlet opening 50 i, the curved passage 50 , the outlet opening 50 p, the weir passage 62 , the opening portion 73 and then to through the diversion passage 7 downwardly in the direction of gravity indicated by the arrow G, thereby being emitted to the outside of the housing 1 (emitted into the outside air) through the exhaust port 8 of the first exterior panel 12 of the housing 1 .
  • the exhaust gas flows in the directions indicated by the arrows A 1 , A 2 , A 3 , A 4 , A 5 , A 6 , A 7 and A 8 in the above-mentioned order.
  • An outlet cross-sectional dimension i.e.
  • the across-sectional dimension of a minimal flow passage) of the weir passage 62 may be formed to have an approximately equal dimension as a cross-sectional dimension of a minimal flow passage of the curved passage 50 .
  • the weir passage 62 is connected to the outside of the housing 1 through the diversion passage 7 . Therefore, the sound (the noise) and the like may be avoided from leaking to the outside of the power generating apparatus while lowering flow resistance.
  • the power generating apparatus is not limited to the configuration disclosed in this embodiment.
  • the cross-sectional dimension of the fluid passage may be changed to any desired size along the upstream side to the downstream side of the flow direction of the exhaust gas.
  • the sound absorbing body 9 or the sound absorbing material is provided at the exhaust passage 4 . Furthermore, the sound absorbing duct 5 , which is made of the sound absorbing material, is provided at the power generating apparatus. Still further, the shuttering portion 61 is made of the sound absorbing member. Therefore, an operation noise generated from the engine 20 , the generator 22 , and the ventilation fan 3 may be reduced. Still further, because the curved passage 50 is formed to extend in the S-shape when being viewed from above, a propagation distance of sound is secured so as to reduce the operation sound, while achieving the downsize of the power generating apparatus.
  • the diversion passage 7 which is provided at the downstream side of the shuttering portion 61 , is formed to change the flow direction of the exhaust gas so that the exhaust gas flows downwardly in the direction of gravity indicated by the arrow G so as to be orthogonal to the flow direction (i.e. the direction indicated by the arrows AS and A 6 ) along which the exhaust gas flows from the outlet opening 50 p of the curved passage 50 towards the weir passage 62 .
  • the exhaust port 8 is provided so as to be located at a lower end portion (i.e. an edge portion) of the diversion passage 7 . Therefore, even if the power generating apparatus is used under the adverse weather condition (i.e.
  • the exhaust gas from the engine 20 flows through the exhaust passage 4 and accordingly, is emitted from the exhaust port 8 of the housing 1 as long as the engine 20 is driven. Accordingly, in this case, the snow (e.g. the powder snow and the like), the rainwater and the like in the outside air may be avoided from entering into the exhaust passage 4 from the exhaust port 8 .
  • the snow e.g. the powder snow and the like
  • the exhaust gas from the engine 20 is not emitted to the outside air from the exhaust port 8 of the housing 1 .
  • the adverse weather condition such as a heavy snowstorm and a heavy rain
  • the snow such as the powder snow, the rain and the like may enter into the diversion passage 7 of the housing 1 from the exhaust port 8 .
  • the snow such as the powder snow, the rainwater and the like may enter into the diversion passage 7 from the exhaust port 8 in the case of the advert weather condition such as the heavy snowstorm, the heavy rain and the like depending on circumstances.
  • the snow such as the powder snow, the rainwater and the like entered into the diversion passage 7 from the exhaust port 8 is not likely to enter into the weir passage 62 unless the snow such as the powder snow, the rainwater and the like upwardly move so as to resist against a gravity (i.e. in a direction opposite to the direction indicated by the arrow A 7 ).
  • the snow such as the powder snow, the rainwater and the like are prevented from entering into the curved passage 50 and further, into the engine 20 provided within the generator chamber 10 . Furthermore, as described above, because the diversion passage 7 is formed to have a narrow passage (a thin passage), the snow such as the powder snow, the rainwater and the like is not likely to move upwardly within the diversion passage 7 so as to resist against the gravity, even if the snow such as the powder snow, the rainwater and the like enters into the diversion passage 7 from the exhaust port 8 .
  • the shuttering portion 61 includes an upwardly extending wall surface 61 a and an inclined wall surface 61 c (i.e. an inclined portion).
  • the upwardly extending wall surface 61 a is formed at the shuttering portion 61 so as to be located closer to the diversion passage 7 .
  • the inclined wall surface 61 c is formed at the shuttering portion 61 so as to be located closer to the curved passage 50 . More specifically, the upwardly extending wall surface 61 a is formed at the shuttering portion 61 so as to upwardly extend from the lower portion 60 d of the weir frame 60 along the direction of gravity indicated by the arrow G.
  • the upwardly extending wall surface 61 a upwardly protrudes in the vertical direction up to the top portion 61 m.
  • the inclined wall surface 61 c is formed to upwardly incline towards the top portion 61 m along the flow direction (i.e. the direction indicated by the arrows AS and A 6 ) of the exhaust gas. Accordingly, emission of the exhaust gas, which flows from the curved passage 50 towards the exhaust port 8 , is ensured. As a result, ventilation of the exhaust gas, which is emitted from the engine 20 , may be ensured.
  • the upwardly extending wall surface 61 a of the shuttering portion 61 is formed to as to upwardly protrude in the vertical direction from the lower portion 60 d of the weir frame 60 so as to resist against the gravity as illustrated in FIG. 5A , the upwardly extending wall surface 61 a ensures a blocking performance against the snow such as the powder snow, the rainwater and the like entered into the exhaust passage 4 from the exhaust port 8 , and further, against a fine object such as grit, dust and the like. Accordingly, the snow such as the powder snow, the rainwater, the grit, the dust and the like may be appropriately and properly prevented from flowing towards the curved passage 50 from the exhaust port 8 .
  • the upwardly extending wall surface 61 a is not limited to the above-explained example where the upwardly extending wall surface 61 a extends in the vertical direction.
  • the upwardly extending wall surface 61 a may be formed to incline in the same direction as the inclined wall surface 61 c inclines.
  • a second embodiment of a power generating apparatus will be described below.
  • the power generating apparatus according to the second embodiment has a similar configuration as the power generating apparatus according to the first embodiment, therefore, the power generating apparatus according to the second embodiment achieves advantages and merits similar to the power generating apparatus according to the first embodiment. Therefore, in the second embodiment, only the differences between the power generating apparatus according to the first embodiment and the power generating apparatus according to the first embodiment will be described below with reference to FIGS. 1 to 5A .
  • the sound absorbing material which is used for the duct side wall portion 52 of the exhaust passage 4 , the sound absorbing body 9 and the shuttering member 61 , may be formed to have a water repellent configuration having water repellency against moisture.
  • the sound absorbing member itself which configures the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61
  • the sound absorbing member itself, which configures the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61
  • a water repellent film may be laminated (layered) on a surface of the sound absorbing material, which is used for each of the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 .
  • a water repellent film, onto which a fluorine-based material is coated may be formed on a surface of each of the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 .
  • the sound absorbing material which configures each of the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 , may include the water repellency against water.
  • the water repellency indicates a property of repelling the water. More specifically, the water repellency refers to a property in which a contact angle between an object and a water drop is great.
  • a contact angle ⁇ of the water drop on a solid surface is used as a reference (an index).
  • the solid surface is referred to have the water repellency (i.e. the hydrophobicity).
  • the solid surface in a case where the contact angle ⁇ falls within a range between 110 degrees and 150 degrees, the solid surface is referred to have high water repellency. Still further, in a case where the contact angle ⁇ is equal to or greater than 150 degrees, the solid surface is referred to have super water repellency.
  • the water repellency includes the high water repellency and the super water repellency.
  • the snow such as the powder snow, the rainwater and the like enteres into the exhaust passage 4 from the exhaust port 8 of the first exterior panel 12 facing outdoor because of the adverse weather condition the snow such as the powder snow, the rainwater and the like entered into the exhaust passage 4 may remain within the exhaust passage 4 as water drops without being absorbed into the sound absorbing material, which configures each of the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 .
  • the water drops on a water repelling surface of the exhaust passage 4 are easily repelled and moved.
  • the moisture (i.e. the water drops and the like) remaining on the exhaust passage 4 may be forcibly and easily emitted into the outside air from the exhaust port 8 of the first exterior panel 12 via the exhaust passage 4 in response to the emission of the exhaust gas having the heat from the generator chamber 10 of the housing 1 towards the exhaust port 8 via the exhaust passage 4 .
  • the exhaust passage 4 is formed to have the water repellency, the water drops may be easily displaced along the exhaust passage 2 in response to the flow of the exhaust gas so as to be emitted into the outside air from the exhaust port 8 . Therefore, a damage of a component, an equipment and the like provided within the housing 1 by corrosion caused by the moisture may be reduced.
  • a third embodiment of a power generating apparatus will be described below.
  • the power generating apparatus according to the third embodiment has a similar configuration as the power generating apparatus according to the first embodiment, therefore, the power generating apparatus according to the third embodiment achieves advantages and merits similar to the power generating apparatus according to the first embodiment. Accordingly, only the differences between the power generating apparatus according to the first embodiment and the power generating apparatus according to the second embodiment will be described below with reference to FIGS. 1 to 5A .
  • At least a surface of the sound absorbing material, which is used for the duct side wall portion 52 of the sound absorbing duct 5 is formed to have a hydrophilic configuration, so that the surface of the duct side wall portion 52 exposed to the curved passage 50 has the hydrophilicity.
  • the hydrophilicity refers to property where the contact angle ⁇ of the water drop on the surface of the solid object is small and where the surface is hydrophilic. Generally, the contact angle ⁇ being less than 90 degrees is defined as the hydrophilicity.
  • each of the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 , which are provided at the exhaust passage 4 is formed to have the hydrophilicity, so that the water drops are less likely to be generated on the surface of each of the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 of the exhaust passage 4 .
  • the sound absorbing material which is used for each of the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 provided at the exhaust passage 4 , is formed with a porous hydrophilic material.
  • the porous hydrophilic material may be formed to have a water absorbable sponge-like property. More specifically, the porous hydrophilic material may be formed so that a ratio of foam cells that interconnect with neighboring foam cells is high. Furthermore, at least the surface of the sound absorbing material may be formed to be porous.
  • the snow such as the powder snow, the rainwater and the like may be absorbed into the sound absorbing material, which is formed as the water absorbable porous material used for each of the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 of the exhaust passage 4 , as the moisture. As a result, an excessive amount of water may be prevented from entering into the generator chamber 10 .
  • the exhaust gas which is exhausted from the generator chamber 10 of the housing 1 and which has the heat, passes through the exhaust passage 4 and then, the exhaust gas is emitted to the outside air from the exhaust port 8 of the first exterior panel 12 while the snow such as the powder snow, the rainwater and the like are absorbed into the sound absorbing material, which is used for the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 of the exhaust passage 4 , as the moisture.
  • the moisture absorbed into the sound absorbing material which is used for the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 of the exhaust passage 4 , may be appropriately and properly dried by the heat of the exhaust gas flowing through the exhaust passage 4 . Accordingly, the moisture dried by the exhaust gas may be emitted into the ambient air together with the exhaust gas from the exhaust port 8 . Therefore, the excessive amount of the water is prevented from entering into the engine 20 , which is provided within the generator chamber 10 . Still further, the damage of the component, the equipment and the like mounted within the housing 1 caused by the corrosion thereof may be avoided. Additionally, because drying the absorbed moisture accompanies latent heat of vaporization (i.e. absorption of heat), cooling performance of the power generating apparatus in the vicinity of the exhaust passage 4 , the generator chamber 10 and the like may be increased. As a result, excessive heating of the exhaust passage 4 , the generator chamber 10 and the like may be avoided.
  • latent heat of vaporization i.e. absorption of heat
  • a fourth embodiment of a power generating apparatus will be described below.
  • the power generating apparatus according to the fourth embodiment has a similar configuration as the power generating apparatus according to the first embodiment, therefore, the power generating apparatus according to the fourth embodiment achieves advantages and merits similar to the power generating apparatus according to the first embodiment. Therefore, only the differences between the power generating apparatus according to the first embodiment and the power generating apparatus according to the fourth embodiment will be described below with reference to FIGS. 1 to 5A .
  • an area of the exhaust passage 4 located relatively closer to the generator chamber 10 i.e. a downstream area of the exhaust passage 4
  • an area of the exhaust passage 4 located relatively closer to the exhaust port 8 i.e.
  • an upstream area of the exhaust passage 4 is formed to have the hydrophobicity.
  • a length of the exhaust passage 4 corresponding to an entire flow passage of the exhaust passage 4 is relatively indicated as 100
  • the area of the exhaust passage 4 located relatively closer to the generator chamber 10 corresponds to an area (a length) of zero (0) to fifty (50) from the generator chamber 10 , or an area (a length) of zero (0) to forty (40).
  • the area (the length) of the portion of the exhaust passage 4 located closer to the generator chamber 10 is not limited to the above-mentioned range.
  • the power generating apparatus may be modified so that the sound absorbing material itself, which is used for the sound absorbing body 9 and the shuttering portion 61 (i.e. the area of the exhaust passage 4 located relatively closer to the exhaust port 8 ), may be formed to have the water repellency.
  • the water repellent film may be laminated on the surface of the sound absorbing material, which is used to configure each of the sound absorbing body 9 and the shuttering portion 61 .
  • the sound absorbing material used for the duct side wall portion 52 i.e. the area of the exhaust passage 4 located relatively closer to the generator chamber 10
  • the porous material so as to have the water absorbability, in other words, so as to have the hydrophilicity.
  • the duct side wall portion 52 is located at a position closer to the generator chamber 10 relative to the diversion passage 7 and the weir passage 62 . Therefore, in this case, the moisture flowing into the generator chamber 10 may be absorbed by the duct side wall portion 52 in order to avoid the moisture such as the water drops and the like from dropping into the generator chamber 10 . Still further, a temperature of the exhaust gas flowing towards the exhaust port 8 from the generator chamber 10 is generally and relatively higher at an area of the duct side wall portion 52 located closer to the generator chamber 10 . Therefore, the area of the duct side wall portion 52 located closer to the generator chamber 10 has a high drying performance. Moreover, drying the moisture accompanies the latent heat of vaporization (i.e. the absorption of heat), the cooling performance of the power generating apparatus in the vicinity of the generator chamber 10 and the like may be increased. As a result, the excessive heating of the generator chamber 10 and the like may be avoided.
  • a fifth embodiment of a power generating apparatus will be described below with reference to FIG. 6 .
  • the power generating apparatus according to the fifth embodiment has a similar configuration to the power generating apparatus according to the first embodiment, therefore, the power generating apparatus according to the fifth embodiment achieves advantages and merits similar to the power generating apparatus according to the first embodiment. Therefore, only the differences between the power generating apparatus according to the first embodiment and the power generating apparatus according to the fifth embodiment will be described below.
  • a fuel cell 28 is provided within the generator chamber 10 of the housing 1 as a power generation source.
  • the fuel cell 28 may be configured as a polymer electrolyte fuel cell (PEFC), a solid oxide fuel cell (SOFC) or a phosphoric acid fuel cell (PAFC).
  • PEFC polymer electrolyte fuel cell
  • SOFC solid oxide fuel cell
  • PAFC phosphoric acid fuel cell
  • the fuel cell may be configured as a low temperature-type fuel cell, a middle temperature-type fuel cell, or a high temperature-type fuel cell.
  • an anode fluid e.g. a hydrogen gas, a hydrogen bearing gas and the like
  • a cathode fluid e.g. an oxygen gas, an oxygen bearing gas and the like
  • the ventilation fan 3 is actuated in response to an electric power generating performance of the fuel cell 28 .
  • the heat and the air within the generator chamber 10 of the housing 1 is emitted from the generator chamber 10 to the curved passage 50 of the sound absorbing duct 5 as the exhaust gas. Furthermore, the exhaust gas flows though the weir passage 62 and the diversion passage 7 so that the exhaust gas is emitted to the outside air from the exhaust port 8 .
  • the sound absorbing material which is used to form each of the duct side wall portion 52 , the sound absorbing body 9 and the shuttering portion 61 of the exhaust passage 4 , may be formed to have the hydrophilicity, the water absorbability, or the water repellency.
  • the sound absorbing material which is used to configure the sound absorbing body 9 and the shuttering portion 61 , may be formed so that at least the surface thereof has the water repellency.
  • the water repellent film may be laminated on the surface of the sound absorbing material, which is used to form each of the sound absorbing body 9 and the shuttering portion 61 .
  • at least the surface of the sound absorbing material of the duct side wall portion 52 at the portion thereof located closer to the generator chamber 10 may be formed to have the water absorbing porous property, in other words, so as to have the hydrophilicity.
  • the power generating apparatus is not limited to the above-described embodiments and examples.
  • the power generating apparatus may be modified and changed without departing from the scope of the disclosure.
  • the shuttering portion 61 is made of the porous sound absorbing material.
  • a non-porous metal, a ceramic, a rigid resin or the like may be adapted as a material used for the shuttering portion 61 .
  • the shuttering portion 61 may be formed to extend vertically.
  • the diversion passage 7 is provided with the first, second and third sound absorbing members 9 f, 9 s and 9 t.
  • the curved passage 50 is formed to three-dimensionally extend in the S-shape.
  • the curved passage 50 may be extended to form an M-shape, an N-shape, a W-shape, a V-shape, an L-shape, a Z-shape or the like.
  • a porous material having the sound absorbability but not having the water absorbability may be adapted.
  • the outdoor power generating apparatus includes the housing 1 including the generator chamber 10 and the side wall portion ( 12 , 14 ), the power generation source 2 configured with the engine-type generator ( 20 , 22 ) or the fuel cell 28 provided within the generator chamber 10 of the housing, the ventilation fan 3 provided within the housing, and the exhaust passage 4 provided within the housing 1 and through which the gas remaining within the generator chamber 10 is exhausted to the outside of the housing 1 as the exhaust gas, wherein the exhaust passage 4 includes the sound absorbing duct 5 formed by the sound absorbing material used for forming the curved passage 50 , which is connected to the generator chamber 10 so as to be in communication with the generator chamber 10 and extends so as to curve, the weir member 6 provided at the downstream side of the sound absorbing duct 5 in the flow direction of the exhaust gas, the weir passage 62 defined by the weir member 6 , the diversion passage 7 provided at the downstream side of the weir member 6 in the flow direction of the exhaust gas and changing the flow direction of the exhaust gas so as to be orthogon
  • the outdoor power generating apparatus having a configuration by which the snow such as the powder snow, the rainwater and the like is prevented from entering into the housing 1 may be achieved while ensuring the sound absorbing performance against the sound, the noise and the like generated due to the operation of the outdoor power generating apparatus.
  • the sound absorbing material has the hydrophilicity or the water repellency on the surface of the sound absorbing material exposed to the curved passage 50 .
  • the diversion passage 7 is defined by using the inner wall surface 12 i of the housing 1 so as to guide the exhaust gas to downwardly flow in the direction of gravity.
  • the diversion passage 7 is provided with the sound absorbing body 9 , which is made of the sound absorbing material and which has the hydrophilicity or the water repellency on the surface of the sound absorbing body 9 exposed to the diversion passage 7 .
  • the area of the exhaust passage 4 located relatively closer to the generator chamber 10 is formed to have the hyrdophilicity and the area of the exhaust passage 4 located relatively closer to the exhaust port 8 is formed to have the hydrophobicity.
  • the diversion passage 7 is defined by the side wall portion 12 of the housing 1 and the diversion member 70 facing the side wall portion 12 , and wherein, in the case where the length of the diversion member 70 in the direction of gravity is set as LA and the length of the diversion member 70 extending in the direction orthogonal to the side wall portion 12 is set as DA, the value obtained by dividing LA by DA is set to fall within the range from five and one hundred (5 to 100).
  • an outdoor power generating apparatus includes the housing 1 including the generator chamber 10 and the side wall portion ( 12 , 14 ), the power generation source 2 configured with the engine-type generator ( 20 , 22 ) or the fuel cell 28 provided within the generator chamber 10 of the housing 1 , the ventilation fan 3 provided within the housing 1 , and the exhaust passage 4 provided within the housing 1 and through which the gas remaining within the generator chamber 10 is exhausted to the outside of the housing 1 as the exhaust gas, wherein the exhaust passage 4 includes the sound absorbing duct 5 formed by the sound absorbing material used for forming the curved passage 50 , which is connected to the generator chamber 10 so as to be in communication with the generator chamber 10 and extends so as to curve, the weir member 6 provided at the downstream side of the sound absorbing duct 5 in the flow direction of the exhaust gas and including the inclined wall surface 61 c, the weir passage 62 defined by the weir member 6 and the weir frame 60 , the diversion passage 7 connected to the weir passage 62 so as to be in
  • the outdoor power generating apparatus having a configuration by which the snow such as the powder snow, the rainwater and the like is prevented from entering into the housing 1 may be achieved while ensuring the sound absorbing performance against the sound, the noise and the like generated due to the operation of the outdoor power generating apparatus.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Exhaust Silencers (AREA)
  • Fuel Cell (AREA)
US13/159,715 2010-06-15 2011-06-14 Outdoor power generating apparatus Abandoned US20110303482A1 (en)

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JP2010-136092 2010-06-15
JP2010136092A JP5637360B2 (ja) 2010-06-15 2010-06-15 屋外設置型発電装置

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EP (1) EP2397667A3 (fr)
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US20110310532A1 (en) * 2010-06-16 2011-12-22 Aisin Seiki Kabushiki Kaisha Outdoor power generating apparatus
US20130213337A1 (en) * 2012-02-17 2013-08-22 Honda Motor Co., Ltd. Engine-driven power generator apparatus
US9243586B2 (en) 2010-10-20 2016-01-26 Honda Motor Co., Ltd. Ventilation outlet structure of cogeneration system
CN105674460A (zh) * 2016-04-12 2016-06-15 瑞安市源霸机械制造有限公司 新型排风机
US10962310B2 (en) 2017-01-12 2021-03-30 Kohler Co. Remote radiator for a generator system

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JP6040654B2 (ja) * 2012-09-13 2016-12-07 アイシン精機株式会社 屋外設置型発電装置
JP6770354B2 (ja) * 2016-07-06 2020-10-14 日本車輌製造株式会社 吸気ダクト及びエンジン作業機
CN106996204B (zh) * 2017-05-04 2019-09-06 中国航发沈阳发动机研究所 一种用于风扇增压级气动噪声试验的消声室
JP7484359B2 (ja) * 2020-04-09 2024-05-16 株式会社アイシン 筐体の換気構造
JP7041908B1 (ja) * 2021-09-30 2022-03-25 一般社団法人発電機協会 発電装置

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CN105674460A (zh) * 2016-04-12 2016-06-15 瑞安市源霸机械制造有限公司 新型排风机
US10962310B2 (en) 2017-01-12 2021-03-30 Kohler Co. Remote radiator for a generator system
US11262141B2 (en) 2017-01-12 2022-03-01 Kohler Co. Remote radiator for a generator system

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JP5637360B2 (ja) 2014-12-10
EP2397667A2 (fr) 2011-12-21
JP2012002097A (ja) 2012-01-05
EP2397667A3 (fr) 2012-08-22
CA2743130A1 (fr) 2011-12-15

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