CN107816385A - Air-cooled power low noise unit provided with independent ventiduct - Google Patents

Air-cooled power low noise unit provided with independent ventiduct Download PDF

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Publication number
CN107816385A
CN107816385A CN201710385789.0A CN201710385789A CN107816385A CN 107816385 A CN107816385 A CN 107816385A CN 201710385789 A CN201710385789 A CN 201710385789A CN 107816385 A CN107816385 A CN 107816385A
Authority
CN
China
Prior art keywords
air
outlet
housing
cover
plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710385789.0A
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Chinese (zh)
Other versions
CN107816385B (en
Inventor
郑春雄
黄长光
卓林昌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Wyman Power Technology Co Ltd
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Fujian Wyman Power Technology Co Ltd
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Filing date
Publication date
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Priority to CN201710385789.0A priority Critical patent/CN107816385B/en
Publication of CN107816385A publication Critical patent/CN107816385A/en
Application granted granted Critical
Publication of CN107816385B publication Critical patent/CN107816385B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00Component parts, details or accessories, not otherwise provided for
    • F02B77/11Thermal or acoustic insulation
    • F02B77/13Acoustic insulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/12Filtering, cooling, or silencing cooling-air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01PCOOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P5/00Pumping cooling-air or liquid coolants
    • F01P5/02Pumping cooling-air; Arrangements of cooling-air pumps, e.g. fans or blowers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38Blades
    • F04D29/384Blades characterised by form
    • F04D29/386Skewed blades

Abstract

The present invention relates to mechanical field, and in particular to generator unit.Air-cooled power low noise unit provided with independent ventiduct, including a housing, fuel engines, generator are provided with housing, housing is externally provided with a cover body, cover body surrounds a gas channel with housing, cover body is provided with air inlet and gas outlet, and the inlet end of gas channel and outlet side are used as using air inlet and gas outlet;Cover body side is provided with inlet end, and relative opposite side is provided with outlet side;And inlet end is located at the lower section of cover body side, outlet side is located at the lower section of cover body opposite side.The present invention while being radiated to generator, does not influence the power of generator by increasing by a gas channel between cover body and housing.And can make housing is not direct to be contacted with cover body, prevent temperature conduction outside cover body to housing.

Description

Air-cooled power low noise unit provided with independent ventiduct
Technical field
The present invention relates to mechanical field, and in particular to generator unit.
Background technology
Traditional generator unit includes fuel engines and generator, and generator unit can produce in operation Raw substantial amounts of heat, easily causes generator generator set loss of excitation and burns.
The content of the invention
It is an object of the invention to provide a kind of air-cooled power low noise unit provided with independent ventiduct, with solve it is above-mentioned extremely A kind of few technical problem.
Problem solved by the invention can be realized using following technical scheme:
Air-cooled power low noise unit provided with independent ventiduct, including a housing, be provided with the housing fuel engines, Generator, it is characterised in that the housing is externally provided with a cover body, and the cover body surrounds a gas channel with the housing, described Cover body is provided with air inlet and gas outlet, and the inlet end of gas channel and outlet are used as using the air inlet and the gas outlet End;
The cover body side is provided with inlet end, and relative opposite side is provided with outlet side;
And the inlet end is located at the lower section of the cover body side, the outlet side is located under the cover body opposite side Side.
The present invention between cover body and housing by increasing by a gas channel, while being radiated to generator, The power of generator is not influenceed.And can make housing is not direct to be contacted with cover body, prevent temperature conduction outside cover body to shell On body.
Further, the both sides inside hollow-core construction that the cover body surrounds with the housing, are respectively arranged with one vertically The air-flow catch of placement;
Two air-flow catch placed vertically, air-flow is defined to from after inlet end passes upward through top, flowed downward, from Flow out outlet side.
The present invention can be such that the direction of air-flow changes so as to extend the area that gas passes through by air-flow catch, be advantageous to dissipate Heat.
One impeller is installed, the air-out direction of the impeller is towards the gas outlet in the gas channel.The present invention is logical Crossing impeller can discharge hot-air in cover body.The present invention by impeller can play guide functions accelerate gas flowing improve it is cold But effect.
A bent axle is provided with the fuel engines, the bent axle includes an extension, and the housing, which is provided with, to be used to wear Cross the through hole of extension, the rotating shaft connection of the extension and impeller.
The present invention, so as to drive the rotation of impeller, can save the energy of driving impeller by crank rotation.
The inwall of the cover body posts 10mm~30mm metal noise elimination felt, and the outer wall of the housing posts 10mm~30mm Puigging made of thick Sound-proof material.
The noise that the present invention is sent when can reduce generator operation by Sound-proof material, metal noise elimination felt can noise reduction can also Do not influence to radiate.
The impeller includes rotating shaft and at least three blades being set in rotating shaft, and the blade is one in 135 °~136 ° The blade of bending.
Present invention optimizes the structure of blade, can make blower fan in operation process by the blade of 135 °~136 ° bendings Overload phenomenon is not had, can effectively reduce noise.
The blade includes the first plates and the second plates, the first plates and the second plates form 135 °~ 136 ° of angle;First plates are fixedly connected with the end of the second plates with rotating shaft, and the length of the first plates is The half of the length of two plates.Present invention limits the structure of the first plates and the second plates can preferably every The straightline propagation of disconnected sound, advantageously reduces noise.
The ratio of the width of the length of second plates and the second plates is less than 0.15.
The present invention optimizes the shape of the second plates by limiting the length of the second plates and the width of the second plates The rotating speed of blade can be improved.
Using the puigging of the inwall of the cover body as the first puigging, using the puigging of the outer wall of the housing as second every Sound-absorbing layer, the thickness of first puigging is 10mm, and the thickness of second puigging is 30mm.
The noise sent in housing is more strong so optimize the thickness of the second puigging, can preferably play sound insulation Effect.
The puigging is provided with strip channel, the flowing of gas in the length direction and gas channel of the strip-shaped grooves Direction is parallel.
The present invention can further increase the contact area of noise and puigging by strip-shaped grooves, and can be to gas Play guide functions.
The blade is provided with strip-shaped grooves, and overcoat made of polytetrafluoroethylene (PTFE), institute are coated with the strip-shaped grooves Position of the width of strip-shaped grooves from close to the position of rotating shaft to away from axle is stated gradually to be incremented by.
The present invention can further make blower fan not have overload phenomenon in operation process by opening up strip-shaped grooves, reduce The discharge of noise.The present invention can prevent having impurity to stick on blade during blower fan air draft by polytetrafluoroethylene (PTFE).
The depth of the strip-shaped grooves is in 4mm.Present invention limits the depth of strip-shaped grooves can ensure that puigging Intensity.
The housing is provided with an air inlet port, and air inlet port is turned on gas channel, is fixed with the air inlet port One filter, the filter include the body of a hollow tubular, and the outer wall of the body is provided with external screw thread, the air outlet Provided with the internal thread to match with the external screw thread,
The body includes an air intake and an outlet air end, on the water conservancy diversion direction of the air intake and outlet air end from front to back It is sequentially provided with a screen pack and a noise reduction layer;
The screen pack is the screen pack formed by the braiding of basalt fibre line, and the surface of the basalt fibre line covers There is tapetum made of a steel wool.
The present invention can be such that the portion of air in gas channel enters in housing by opening up air inlet on housing, right Cooled in housing.It can prevent impurity from entering in housing by the filter on air inlet, influence the normal work of generator Make.
A fuel tank is additionally provided with the housing, the fuel tank internal memory contains diesel oil.
The present invention is low by diesel oil cost, is adapted to long-term use.
A cooling oil duct is provided with the generator, the cooling oil duct takes the shape of the letter U, and the cooling oil duct includes an oil inlet end With an oil outlet end, the oil inlet end and the oil outlet end are all stretched into the fuel tank, and an oil pump is provided with the cooling oil duct, oil The import of pump turns on the oil inlet end, and the outlet of the oil pump turns on the oil outlet end, and the oil pump draws a power line.
Oil in fuel tank can be drawn in cooling oil duct by the present invention by oil pump, cold so as to be carried out to the inside of generator But, the oil of discharge is directly entered fuel tank, it is not easy to causes the waste of diesel oil.
At least one spherical muffler is provided with the gas channel, the spherical muffler is fixed on first sound insulation On layer, the spherical muffler is the muffler made of glass fibre.
Because the noise of air outlet is larger so setting spherical muffler preferably to play sound deadening in air outlet.
The top of the housing is provided with the depression of an opening upwards, and liquid metal coating is filled with the depression, described A steel lid is stamped in depression, the upper surface of the steel lid connects the clava of at least three steels, with described bar-shaped For body as radiator, the lower surface connection at least three of the steel lid is used for the sheet for inserting the steel of liquid-metal layer Body, heat exchanger is used as using the plates.
Plates insertion liquid-metal layer can be realized and fully contacted with liquid-metal layer by the present invention, be easy to housing to lead Heat, radiating is then realized by radiating fin.This patent is by the heat loss through convection of liquid metal, and is radiated made of solid metallic Device is combined, and both ensure that the heat exchange performance of liquid metal intensity, realizes the sealing to liquid metal again.The present invention passes through Gas in gas channel is flowed so as to take away the temperature on clava surface, realizes radiating.
The liquid-metal layer is the liquid-metal layer made of aluminum gallium alloy.
The second gas channel is provided with the housing, the air inlet of second gas channel is close to the generator, institute The air outlet for stating the second gas channel turns on close to the gas outlet, second gas channel with the gas channel.This hair It is bright air-flow to be led to by the second gas channel at generator and engine, realize the orientation cooling of generator.
Brief description of the drawings
Fig. 1 is the part-structure schematic diagram of the present invention;
Fig. 2 is the part-structure schematic diagram of impeller of the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Conjunction, which is specifically illustrating, is expanded on further the present invention.
Reference picture 1, Fig. 2, the air-cooled power low noise unit provided with independent ventiduct, including a housing 1, housing is interior to be provided with combustion Oil turbine 2, generator 3, housing are externally provided with a cover body 4, and cover body surrounds a gas channel 5 with housing, and cover body is provided with air inlet Mouth and gas outlet, the inlet end of gas channel and outlet side are used as using air inlet and gas outlet;Cover body side is provided with inlet end, Relative opposite side is provided with outlet side;And inlet end is located at the lower section of cover body side, outlet side is located under cover body opposite side Side.The present invention while being radiated to generator, is not influenceed by increasing by a gas channel between cover body and housing The power of generator.And can make housing is not direct to be contacted with cover body, prevent temperature conduction outside cover body to housing.Enter One step, the both sides inside hollow-core construction that cover body surrounds with housing, is respectively arranged with the air-flow placed a vertically catch;Two The air-flow catch placed vertically, air-flow is defined to from after inlet end passes upward through top, flowed downward, flowed out from outlet side. The present invention can be such that the direction of air-flow changes so as to extend the area that gas passes through by air-flow catch, be advantageous to radiate.Cover body Inwall post 10mm~30mm metal noise elimination felt, the outer wall of housing posts sound insulation made of the thick Sound-proof materials of 10mm~30mm Layer 6.The noise that the present invention is sent when can reduce generator operation by Sound-proof material, metal noise elimination felt can noise reduction can not also shadow Ring radiating.The noise that the present invention is sent when can reduce generator operation by Sound-proof material.One impeller is installed in gas channel 7, the air-out direction of impeller is towards gas outlet.The present invention can be discharged hot-air in cover body by impeller.The present invention passes through leaf Wheel can play guide functions and accelerate gas flowing raising cooling effect.Impeller includes rotating shaft 11 and is set in rotating shaft at least Three blades, blade are a blades in 135 °~136 ° bendings.Present invention optimizes the structure of blade, passes through 135 °~136 ° The blade of bending can make blower fan not have overload phenomenon in operation process, can effectively reduce noise.
Blade includes the first plates 12 and the second plates 13, the first plates and the second plates form 135 °~ 136 ° of angle;First plates are fixedly connected with the end of the second plates with rotating shaft, and the length of the first plates is The half of the length of two plates.Present invention limits the structure of the first plates and the second plates can preferably every The straightline propagation of disconnected sound, advantageously reduces noise.The ratio of the width of the length of second plates and the second plates is less than 0.15.The present invention optimizes the shape energy of the second plates by limiting the length of the second plates and the width of the second plates Enough improve the rotating speed of blade.Be provided with a bent axle in fuel engines, bent axle includes an extension, and housing is provided with for through prolonging Stretch the through hole of section, the rotating shaft connection of extension and impeller.The present invention by crank rotation so as to drive the rotation of impeller, can Save the energy of driving impeller.Using the puigging of the inwall of cover body as the first puigging, using the puigging of the outer wall of housing as Two puiggings, the thickness of the first puigging is 10mm, and the thickness of the second puigging is 30mm.The noise sent in housing is more strong It is strong so optimize the thickness of the second puigging, can preferably play soundproof effect.Puigging is provided with strip channel, strip The length direction of groove is parallel with the flow direction of gas in gas channel.The present invention can further be increased by strip-shaped grooves The contact area of noise and puigging, and guide functions can be played to gas.Blade is provided with strip-shaped grooves, strip-shaped grooves It is interior to be coated with overcoat made of polytetrafluoroethylene (PTFE), the position of the width of strip-shaped grooves from close to the position of rotating shaft to away from axle by Gradually it is incremented by.The present invention can further make blower fan not have overload phenomenon in operation process by opening up strip-shaped grooves, reduce The discharge of noise.The present invention can prevent having impurity to stick on blade during blower fan air draft by polytetrafluoroethylene (PTFE).Bar The depth of shape groove is in 4mm.Present invention limits the intensity that the depth of strip-shaped grooves can ensure that puigging.Housing is provided with One air inlet port, air inlet port turn on gas channel, a filter 8 are fixed with air inlet port, it is hollow that filter includes one The body of tubulose, the outer wall of body are provided with external screw thread, and air outlet is provided with the internal thread to match with external screw thread, and body includes one A screen pack and a noise reduction are sequentially provided with from front to back on the water conservancy diversion direction of air intake and an outlet air end, air intake and outlet air end Layer;Screen pack is the screen pack formed by the braiding of basalt fibre line, and the surface of basalt fibre line is covered with a steel wool system Into tapetum.The present invention can make the portion of air in gas channel enter housing by opening up air inlet on housing It is interior, to cooling in housing.It can prevent impurity from entering in housing by the filter on air inlet, influence generator just Often work.
A fuel tank 9 is additionally provided with housing, fuel tank internal memory contains diesel oil.The present invention is low by diesel oil cost, is adapted to make for a long time With.A cooling oil duct is provided with generator, cooling oil duct takes the shape of the letter U, and cooling oil duct includes an oil inlet end and an oil outlet end, oil inlet end All stretched into oil outlet end in fuel tank, be provided with an oil pump in cooling oil duct, the import of oil pump turns on oil inlet end, the outlet of oil pump and Oil outlet end turns on, and oil pump draws a power line.Oil in fuel tank can be drawn in cooling oil duct by the present invention by oil pump, so as to The inside of generator is cooled down, the oil of discharge is directly entered fuel tank, it is not easy to cause the waste of diesel oil.Set in gas channel There is at least one spherical muffler 10, spherical muffler is fixed on the first puigging, and spherical muffler is by glass fibre Manufactured muffler.Because the noise of air outlet is larger so setting spherical muffler preferably to play noise reduction in air outlet Effect.The top of housing is provided with the depression of an opening upwards, is filled with liquid metal coating in depression, a steel is stamped in depression Lid, the upper surface of steel lid connects the clava of at least three steels, using clava as radiator, under steel lid Surface connection at least three is used for the plates for inserting the steel of liquid-metal layer, and heat exchanger is used as using plates.The present invention will Plates insertion liquid-metal layer can be realized fully to be contacted with liquid-metal layer, is easy to housing heat conduction, is then passed through radiating Fin realizes radiating.This patent is by the heat loss through convection of liquid metal, and radiator is combined made of solid metallic, both ensures The heat exchange performance of liquid metal intensity, realizes the sealing to liquid metal again.The present invention passes through the gas in gas channel Body flowing realizes radiating so as to take away the temperature on clava surface.Liquid-metal layer is the liquid gold made of aluminum gallium alloy Belong to layer.The second gas channel is provided with housing, the air inlet of the second gas channel is close to generator, the air-out of the second gas channel Mouth turns on close to gas outlet, the second gas channel with gas channel.The present invention can be led to air-flow by the second gas channel At generator and engine, the orientation cooling of generator is realized.Arrow is the track of air current flow in figure.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (10)

1. the air-cooled power low noise unit provided with independent ventiduct, including a housing, the housing is interior to be provided with fuel engines, hair Motor, it is characterised in that the housing is externally provided with a cover body, and the cover body surrounds a gas channel, the cover with the housing Body is provided with air inlet and gas outlet, and the inlet end of gas channel and outlet side are used as using the air inlet and the gas outlet;
The cover body side is provided with inlet end, and relative opposite side is provided with outlet side;
And the inlet end is located at the lower section of the cover body side, the outlet side is located at the lower section of the cover body opposite side.
2. the air-cooled power low noise unit according to claim 1 provided with independent ventiduct, it is characterised in that:The cover body Inwall and the outer wall of the housing post puigging made of the thick Sound-proof materials of 10mm~30mm.
3. the air-cooled power low noise unit according to claim 1 provided with independent ventiduct, it is characterised in that:The air-flow One impeller is installed, the air-out direction of the impeller is towards the gas outlet in passage.
4. the air-cooled power low noise unit according to claim 3 provided with independent ventiduct, it is characterised in that:The impeller Including rotating shaft and at least three blades being set in rotating shaft, the blade is a blade in 135 °~136 ° bendings.
5. the air-cooled power low noise unit according to claim 4 provided with independent ventiduct, it is characterised in that:The blade Including the first plates and the second plates, the angle of 135 °~136 ° of the first plates and the second plates composition;First Shape body is fixedly connected with the end of the second plates with rotating shaft, and the length of the first plates is the two of the length of the second plates / mono-;The ratio of the width of the length of second plates and the second plates is less than 0.15.
6. the air-cooled power low noise unit according to claim 4 provided with independent ventiduct, it is characterised in that:The fuel oil A bent axle is provided with engine, the bent axle includes an extension, and the housing is provided with the through hole for being used for extending through section, institute The rotating shaft for stating extension and impeller connects.
7. the air-cooled power low noise unit according to claim 2 provided with independent ventiduct, it is characterised in that:With the cover The puigging of the inwall of body is the first puigging, using the puigging of the outer wall of the housing as the second puigging, described first every The thickness of sound-absorbing layer is 10mm, and the thickness of second puigging is 30mm.
8. the air-cooled power low noise unit according to claim 1 provided with independent ventiduct, it is characterised in that:The housing An air inlet port is provided with, air inlet port is turned on gas channel, and a filter, the filtering are fixed with the air inlet port Device includes the body of a hollow tubular, and the outer wall of the body is provided with external screw thread, and the air outlet is provided with and the external screw thread The internal thread to match,
The body includes an air intake and an outlet air end, on the water conservancy diversion direction of the air intake and outlet air end from front to back successively Provided with a screen pack and a noise reduction layer;
The screen pack is the screen pack formed by the braiding of basalt fibre line, and the surface of the basalt fibre line is covered with one Tapetum made of steel wool.
9. the air-cooled power low noise unit according to claim 1 provided with independent ventiduct, it is characterised in that:The generating A cooling oil duct is provided with machine, the cooling oil duct takes the shape of the letter U, and the cooling oil duct includes an oil inlet end and an oil outlet end, described Oil inlet end and the oil outlet end are all stretched into the fuel tank, are provided with an oil pump in the cooling oil duct, the import of oil pump with it is described Oil inlet end turns on, and the outlet of the oil pump turns on the oil outlet end, and the oil pump draws a power line.
10. the air-cooled power low noise unit according to claim 1 provided with independent ventiduct, it is characterised in that:The gas At least one spherical muffler is provided with circulation road, the spherical muffler is fixed on first puigging, described spherical Muffler is the muffler made of glass fibre.
CN201710385789.0A 2017-05-26 2017-05-26 Air-cooled power low-noise unit with independent air duct Active CN107816385B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710385789.0A CN107816385B (en) 2017-05-26 2017-05-26 Air-cooled power low-noise unit with independent air duct

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Application Number Priority Date Filing Date Title
CN201710385789.0A CN107816385B (en) 2017-05-26 2017-05-26 Air-cooled power low-noise unit with independent air duct

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CN107816385A true CN107816385A (en) 2018-03-20
CN107816385B CN107816385B (en) 2021-04-13

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200958170Y (en) * 2005-10-31 2007-10-10 李起先 Blower of knitting machine
CN202441484U (en) * 2012-01-05 2012-09-19 四川省辛普森动力设备有限公司 Air-cooled silent type generator set
JP5072298B2 (en) * 2006-09-21 2012-11-14 株式会社マキタ Air-cooled engine for small portable work machines
CN102852621A (en) * 2012-10-12 2013-01-02 苏州晨浩动力设备有限公司 Air cooling single-cylinder gasoline and diesel engines for low-noise generating set
CN203962149U (en) * 2014-07-01 2014-11-26 福州凯普动力机械有限公司 A kind of generator set
CN204200333U (en) * 2014-11-07 2015-03-11 重庆鼎工机电有限公司 Diesel generating set cooling duct
CN106015094A (en) * 2016-07-02 2016-10-12 宁波智宇流体技术有限公司 Fan blade
US20160298552A1 (en) * 2015-04-09 2016-10-13 Yamabiko Corporation Portable Working Machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200958170Y (en) * 2005-10-31 2007-10-10 李起先 Blower of knitting machine
JP5072298B2 (en) * 2006-09-21 2012-11-14 株式会社マキタ Air-cooled engine for small portable work machines
CN202441484U (en) * 2012-01-05 2012-09-19 四川省辛普森动力设备有限公司 Air-cooled silent type generator set
CN102852621A (en) * 2012-10-12 2013-01-02 苏州晨浩动力设备有限公司 Air cooling single-cylinder gasoline and diesel engines for low-noise generating set
CN203962149U (en) * 2014-07-01 2014-11-26 福州凯普动力机械有限公司 A kind of generator set
CN204200333U (en) * 2014-11-07 2015-03-11 重庆鼎工机电有限公司 Diesel generating set cooling duct
US20160298552A1 (en) * 2015-04-09 2016-10-13 Yamabiko Corporation Portable Working Machine
CN106015094A (en) * 2016-07-02 2016-10-12 宁波智宇流体技术有限公司 Fan blade

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