CN103939206A - Double-cylinder air-cooled mute gasoline engine generator unit - Google Patents

Double-cylinder air-cooled mute gasoline engine generator unit Download PDF

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Publication number
CN103939206A
CN103939206A CN201410093994.6A CN201410093994A CN103939206A CN 103939206 A CN103939206 A CN 103939206A CN 201410093994 A CN201410093994 A CN 201410093994A CN 103939206 A CN103939206 A CN 103939206A
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CN
China
Prior art keywords
generator
box
exhaust
double
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410093994.6A
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Chinese (zh)
Inventor
王韶华
吴建亮
邓刚
窦金辉
李秀峰
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.)
JIANGSU SUMEIDA ELECTROMECHANICAL INDUSTRY CO LTD
Original Assignee
JIANGSU SUMEIDA ELECTROMECHANICAL INDUSTRY CO LTD
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Application filed by JIANGSU SUMEIDA ELECTROMECHANICAL INDUSTRY CO LTD filed Critical JIANGSU SUMEIDA ELECTROMECHANICAL INDUSTRY CO LTD
Priority to CN201410093994.6A priority Critical patent/CN103939206A/en
Publication of CN103939206A publication Critical patent/CN103939206A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a double-cylinder air-cooled mute gasoline engine generator unit. The double-cylinder air-cooled mute gasoline engine generator unit comprises a tank and a chassis, wherein the space defined by the tank and the chassis is internally provided with a double-cylinder engine and an electric generator coaxially connected with the double-cylinder engine. The double-cylinder air-cooled mute gasoline engine generator unit further comprises an exhaust chamber and an exhaust silencer; an exhaust port of the electric generator is upward; the exhaust chamber is arranged above the electric generator and extends in the horizontal direction; the left end and the right end of the exhaust chamber are open; the left-end opening is formed in the upper portion of the engine and the electric generator and covers a cooling air outlet of the engine and a cooling air outlet of the electric generator; the right-end opening is connected with an air hole in a rear cover of the tank; the exhaust silencer is arranged on the position, right opposite to the exhaust port of the electric generator, inside the exhaust chamber; the exhaust silencer is connected with an exhaust port of the double-cylinder engine through two exhaust pipelines. A circulating cooling system is formed inside the unit, and influence on the double-cylinder engine and the electric generator by heat energy is reduced effectively.

Description

A kind of double cylinder wind cooling Silent gasoline generator group
Technical field
The present invention relates to a kind of power equipment field.Be particularly related to a kind of double cylinder wind cooling Silent gasoline generator group.
Background technique
Gasoline engine generator group, as outdoor standby power supply apparatus, is widely used in the places such as hospital, supermarket, bank, office building, building site, communication device, villa, of many uses.On market, quiet unit is all large-size water-cooling diesel mute units now, there is no medium-sized double cylinder wind cooling Silent gasoline generator group.Due to shortcomings such as water-cooled diesel mute unit volume are huge, cost is expensive, movement is inconvenient, cause some users more to need the medium-sized air-cooled Silent gasoline generator group of class product as an alternative.Double-cylinder gasoline engine group fails effectively to solve because of work problem of temperature rise at present, only has open-shelf unit, and noise is excessive.
Summary of the invention
The present invention considers that above-mentioned situation makes, and an object of the present invention is to provide a kind of double cylinder wind cooling Silent gasoline generator group that can effectively reduce noise, solve problem of temperature rise.
To achieve these goals, the invention provides a kind of double cylinder wind cooling Silent gasoline generator group, this double cylinder wind cooling Silent gasoline generator group comprises casing and chassis, in the space surrounding with chassis at casing, be provided with a twin cylinder engine with the coaxial generator being connected of this twin cylinder engine, this generator set is also provided with exhaust box and exhaust silencer, the relief opening of described generator is arranged upwards, described exhaust box is arranged on the top of described generator, along left and right directions, extend, and at left and right both ends open, left end opening is located at the top of described motor and generator, cover the cooling-air outlet of described motor and motor, right-hand member exports the vent on the bonnet that is connected to casing, described exhaust silencer is arranged in described exhaust box, over against the position of the relief opening of described generator, described exhaust silencer is connected with twin cylinder engine relief opening by two exhaust ducts.
In technique scheme, casing and chassis form a whole sound proof box, twin cylinder engine, generator, exhaust silencer and exhaust box are arranged in inside, by this structure, the cooling-air of cooling twin cylinder engine and the cooling mandatory introducing exhaust box of cooling-air of generator, continue coolant exhaust silencing apparatus and mix with motor discharging waste gas, and promote mixed gas from exhaust box the other end opening is got rid of casing, thereby form a circulating cooling system, effectively reduce the impact of heat on twin cylinder engine and motor.In addition, exhaust box and sound proof box have dual soundproof effect to exhaust sound, effectively reduce noise.
As a further improvement on the present invention, described double cylinder wind cooling gasoline mute power generator group also comprises a motor dividing plate, described motor baffle arrangement is at twin cylinder engine fan side, on motor dividing plate, corresponding described twin cylinder engine fan place has vent, motor dividing plate, casing and chassis form the cooling air inlet chamber of twin cylinder engine, on the indoor chassis of this cooling air-inlet cavity or casing, have vent.According to this structure, the chamber at the cooling air inlet chamber of formed twin cylinder engine and twin cylinder engine, generator place is isolated completely, thereby twin cylinder engine air inlet and cooling-air are guaranteed all the time as cool air, effectively assurance engine cooling and power are effectively exported, and this cooling air inlet chamber effectively reduces noise leakage.
As a further improvement on the present invention, described double cylinder wind cooling gasoline mute power generator group also comprises a generator dividing plate, described generator baffle arrangement is at the tail end of generator, corresponding described exhaust box and generator tail end place have vent, described generator dividing plate, casing and chassis form the cooling air inlet chamber of generator, on the chassis in this chamber or casing, have vent.According to this structure, the chamber at the cooling air inlet chamber of formed generator and twin cylinder engine, generator place is isolated completely, thereby make generator cooling-air be always cool air, effectively guarantee the cooling and efficiency of generator, and this cooling air inlet chamber effectively reduces noise leakage.
As a further improvement on the present invention, be also provided with to the air guide sleeve extending in casing on described bonnet, the left port of described air guide sleeve and the right-end openings of described exhaust box are tightly connected.Air guide sleeve is directly discharged the exhaust waste gas in exhaust box and heat outside casing, prevents that heat and waste gas are detained in casing, impact heat radiation and power stage.
As a further improvement on the present invention, above-mentioned casing is connected to form by inverted box, crossbeam and rear box from left to right, and described crossbeam is fixed on described chassis, and described exhaust box is fixed on crossbeam.
As a further improvement on the present invention, described generator dividing plate and described exhaust box and generator tail end joint are provided with the cotton felt of sealing.
As a further improvement on the present invention, described box inside pastes acoustical cotton, described exhaust box outside bag heat insulation foam felt.
As a further improvement on the present invention, vent is arranged in the both sides of described rear box, and described vent is venetian blind.
As a further improvement on the present invention, this double cylinder wind cooling gasoline engine generator group also comprises at least one fuel tank, and fuel tank is arranged in the below of twin cylinder engine and generator.Described twin cylinder engine, generator, fuel tank, exhaust silencer, exhaust box are arranged in motor dividing plate, generator dividing plate, the formed sound proof box of casing and chassis, exhaust box one end is connected with generator dividing plate, on the generator dividing plate of this joint, have vent, vent area is not less than exhaust box at the sectional area of this joint, bonnet is provided with air guide sleeve, air guide sleeve one end is connected with generator dividing plate, and cover the vent of exhaust box, the air guide sleeve the other end is connected with bonnet, on the bonnet of this joint, has vent.According to this structure, fuel tank is arranged in sound proof box bottom, reserve large quantity space to motor dividing plate, generator dividing plate, the formed sound proof box of casing and chassis top, reduce twin cylinder engine and generator distribute heat fuel tank is scorched to impact, in this sound proof box, on chassis or casing, have vent, can release heat, prevent that heat is retained in sound proof box always, thereby further reduce the impact of heat on twin cylinder engine and generator.
The present invention is by above-mentioned three aspect structural designs, and 4 cooling chamber of formation, are first forced to introduce complete cooling-air from engine cooling air inlet chamber by the axial fan of twin cylinder engine, behind twin cylinder engine surface, are blown into exhaust box; By generator shaft flow fan, forced to introduce complete cooling-air from the cooling air inlet chamber of generator, behind generator surface, be blown into exhaust box; The cooling-air of cooling twin cylinder engine and cooling cooling-air coolant exhaust silencing apparatus in exhaust box of generator, formed silencing apparatus cooling chamber, and in chamber, mixed with exhaust waste gas and get rid of outside casing; In the silencing case at twin cylinder engine and generator place, have external vent, thereby form the secondary cooling chamber of twin cylinder engine and generator, get rid of in time heat.Meanwhile, 4 cooling chamber effectively reduce the leakage of noise.By this structure, invent, can provide that a kind of volume is little, cost is low, effectively reduce noise, solve the double cylinder wind cooling Silent gasoline generator group of problem of temperature rise.
To introduce in detail preferred embodiment by accompanying drawing below, can clearer above-mentioned purpose of the present invention and other objects, feature and advantage.
Accompanying drawing explanation
Fig. 1 is the front view of the preferred embodiment of the present invention;
Fig. 2 is the elevational cross-sectional view of the preferred embodiment of the present invention;
Fig. 3 is the axial view of the preferred embodiment of the present invention, wherein removes casing, motor dividing plate etc.;
Fig. 4 is the axial view explosive view of the preferred embodiment of the present invention, wherein removes casing, motor dividing plate etc.;
Fig. 5 is the axial view explosive view of the preferred embodiment of the present invention.
In figure:
1-handrail; 2-inverted box; 3-inverted box top acoustical cotton; 4-connection bracket; 5-inverted box Stamping Steel Ribbon; 6-motor dividing plate; The sealing of 7-motor is cotton; 8-twin cylinder engine; 9-heat insulation foam felt; 10-hinge; 11-silencing apparatus; 12-exhaust box; 13-rear box; The left quiet cotton of 14-rear box; The right quiet cotton of 15-rear box; 16-seals cotton felt; 17-radiator window; 18-generator dividing plate; 19-bonnet; 20-door lock; 21-door-plate seal foaming bar; 22-venetian blind; 23-universal wheels; 24-electricity secret seal; 25-motor seal is cotton; 26-rubber shock-absorbing pin; 27-rear end cover; 28-bottom cut board; 29-stator; 30-rotor; 31-front cover; 32-fuel tank; 33-directional wheel; 34-hasp; 35-hasp; 36-attacker; 37-side rubber pange bar; 38-panel component; The positive rubber pange bar 2 of 39-; 40-chassis; 41-crossbeam; 42-emergency stop switch; 43-symmetric hinged; 44-fuel tank cap; 45-battery; 46-motor wind scooper; 47-support; 48-inverted box bottom acoustical cotton; 100-casing; 200-generator.
Embodiment
Referring to figs. 1 to Fig. 5, double cylinder wind cooling mute power generator group at least comprises a casing 100, twin cylinder engine 8, generator being driven by twin cylinder engine 8 200, exhaust silencer 11, exhaust box 12, chassis 40, a fuel tank 32;
Casing 100 is by inverted box 2 as shown in Figure 5, crossbeam 41, 19 4 parts of rear box 13 and bonnet form, crossbeam 41 is connected by fastening piece with chassis 40, rear box 13 is fixed together by fastening piece with chassis 40 and crossbeam 41, inverted box 2 is fixed on crossbeam 41 by hinge 10, inverted box 2 can spin upside down, inverted box 2 the other ends are provided with hasp 35, can be fastening by the hasp 34 being fixed on chassis 40, handrail 1 and attacker 36 are installed in inverted box 2, bonnet 19 is fixed on rear box 13 by symmetric hinged 43, bonnet 19 can and be closed by symmetric hinged 43 Unscrews, bonnet 19 the other ends are provided with door lock 20(and see Fig. 2), door lock 20 may latch on rear box 13.
As shown in Figure 2, generator 200 is by front cover 31, rotor 30, 27 4 major components of stator 29 and rear end cover form, front cover 31 is arranged on twin cylinder engine 8 flanged surfaces by fastening piece, rotor 30 is fixed on twin cylinder engine 8 bent axles by fastening piece, stator 29 is arranged between front cover 31 and rear end cover 27, rotor 30 bearings are fixed on rear end cover 27, twin cylinder engine 8 is coaxially connected with generator 200, be fixed on together on bottom cut board 28, bottom cut board 28 is fixed on chassis 40 through rubber shock-absorbing pin 26, fuel tank 32 is fixed on chassis 40, and be arranged in bottom cut board 28 belows, fuel tank cap 44 is installed on fuel tank 32, exhaust silencer 11 is fixed on twin cylinder engine (8) by being welded on exhaust elbow on body, and exhaust silencer 11 is arranged in the top of generator 200, and the exhaust outlet of the front cover 31 of generator 200 is facing to the exhaust silencer 11 of top, generator dividing plate 18 is fixed in rear box 13, and electricity secret seal 24 is fixed on generator dividing plate 18, and motor seal cotton 25 is installed in electricity secret seal 24, exhaust box 12 is arranged in the periphery of exhaust silencer 11, and one end is fixed on generator dividing plate 18, and in conjunction with Fig. 5, exhaust box 12 front end both sides are provided with support 47, by support 47, are fixed on crossbeam 41, and exhaust box 12 outsides are surrounded by heat insulation foam felt 9, twin cylinder engine 8 fan sides are furnished with motor dividing plate 6, motor dividing plate 6 is fixed on chassis 40 by fastening piece, the opposite side of motor dividing plate 6 is furnished with panel component 38,38 liang of legs of panel component are fixed on chassis 40, actuation member and power output apparatus are installed on panel component 38, between motor dividing plate 6 and panel component 38, connection bracket 4 are installed, panel component 38 arranged beneath have a battery 45, and battery 45 is fixed on chassis 40, on chassis 40, be fixed with 2 directional wheels 33 and 2 universal wheelss 23, venetian blind 22 and radiator window 17 are installed on rear box 13, emergency stop switch 42 is also housed on rear box 13, rear box 13 inwall walls post rear box left quiet cotton 14 and rear box right quiet cotton 15, as shown in Fig. 3, diagram, front cover 31 both sides are furnished with motor wind scooper 46, and motor wind scooper 46 is fixed on bottom cut board 28, and wind scooper 46 one end extend in exhaust box 12.
Double cylinder wind cooling Silent gasoline generator group heat radiation of the present invention completes as follows with noise reduction, and as shown in Fig. 2 and Fig. 5, inverted box 2, chassis 40, panel component 38, motor dividing plate 6 form the cooling air inlet chamber A of twin cylinder engine 8, inverted box 2, chassis 40, crossbeam 41, rear box 13, motor dividing plate 6, generator dividing plate 18 form the heat radiation chamber D that twin cylinder engine 8 and generator 200 are housed, rear box 13, bonnet 19, generator dividing plate 18, chassis 40 form the cooling air inlet chamber B of generator 200, exhaust box 12, bonnet 19 form the C of exhaust chamber of exhaust silencer 11, at cooling air inlet chamber A, motor dividing plate 6 has vent K, between motor dividing plate 6 and twin cylinder engine 8, there is motor sealing cotton 7, motor dividing plate 6 seals by inverted box Stamping Steel Ribbon 5 with inverted box 2, panel component 38 and inverted box 2 are by positive rubber pange bar 39 and side rubber pange bar 37 peripheral sealings, two legs and the inverted box 2 of panel component 38 have certain distance, the position that inverted box 2 correspondences 38 liang of legs of panel component has vent H, panel component 38 forms hole, labyrinth with air hole H like this, chassis 40 has vent E at A chamber inner bottom part, inverted box 2 walls in A chamber post inverted box top acoustical cotton 3 and inverted box bottom acoustical cotton 48, like this when unit is worked, cooling-air flows into from vent hole E and H, A chamber isolates completely for D chamber, at cooling air inlet chamber B, between bonnet 19 and generator dividing plate 18, by the cotton felt 16 of sealing, seal, generator dividing plate 18 two ends extend to rear box 13 walls, between bonnet 19 and rear box 13, pass through door-plate seal foaming bar 21 peripheral sealings, electricity secret seal 24 is by motor seal cotton 25 and rear end cover 27 sealings, when unit is worked like this, cooling-air flows into from venetian blind 22, and B chamber isolates completely for C chamber and D chamber, for C chamber, exhaust box 12 forms separate cavities with the cotton felt 16 of sealing and bonnet 19, on C chamber runner bonnet 19, has relief opening.On bonnet 19, be also provided with to the air guide sleeve extending in casing, the right-end openings of the left port of air guide sleeve and exhaust box 12 is tightly connected.During generator set operation, engine blower forces to drive cooling-air to be introduced from A chamber, behind cooled engine surface, be blown into C chamber, fan of generator rotor forces to drive cooling-air to be introduced from B chamber, behind cooled electric generator surface, be blown into C chamber, in C chamber, cooling-air continues cooling down high-temperature exhaust silencer 11, and use with exhaust waste gas and mix, and under the impact of forced draft by the relief opening of bonnet 19, get rid of outside casing, venetian blind 22 is arranged in the both sides of rear box 13, the impact of hot air outside minimizing eliminating casing on B chamber cooling-air, the peripheral envelope of exhaust box 12 has heat insulation foam felt 9, thereby reduce C chamber heat for the impact in D chamber, the heat producing during long-play in D chamber can be got rid of outside casings by the radiation hole G in inverted box 2 and radiator window 17.The design of chamber structure, the leakage of noise while effectively reducing unit operation.
By the embodiment of the invention described above, can effectively solve problem of temperature rise, reduce equipment acoustic noise.Although describe embodiments of the invention above in detail, without departing from the spirit and scope of the present invention, the present invention can have various ways to change.

Claims (9)

1. a double cylinder wind cooling Silent gasoline generator group, this double cylinder wind cooling Silent gasoline generator group comprises casing and chassis, in the space surrounding with chassis at casing, be provided with a twin cylinder engine with the coaxial generator being connected of this twin cylinder engine, it is characterized in that, this generator set is also provided with exhaust box and exhaust silencer, the relief opening of described generator is arranged upwards, described exhaust box is arranged on the top of described generator, along left and right directions, extend, and at left and right both ends open, left end opening is located at the top of described motor and generator, cover the cooling-air outlet of described motor and motor, right-hand member exports the vent on the bonnet that is connected to casing, described exhaust silencer is arranged in described exhaust box, over against the position of the relief opening of described generator, described exhaust silencer is connected with twin cylinder engine relief opening by two exhaust ducts.
2. double cylinder wind cooling Silent gasoline generator group according to claim 1, it is characterized in that, described double cylinder wind cooling gasoline mute power generator group also comprises a motor dividing plate, described motor baffle arrangement is at twin cylinder engine fan side, on motor dividing plate, corresponding described twin cylinder engine fan place has vent, motor dividing plate, casing and chassis form the cooling air inlet chamber of twin cylinder engine, on the indoor chassis of this cooling air-inlet cavity or casing, have vent.
3. double cylinder wind cooling Silent gasoline generator group according to claim 1 and 2, it is characterized in that, described double cylinder wind cooling gasoline mute power generator group also comprises a generator dividing plate, described generator baffle arrangement is at the tail end of generator, corresponding described exhaust box and generator tail end place have vent, described generator dividing plate, casing and chassis form the cooling air inlet chamber of generator, on the chassis in this chamber or casing, have vent.
4. double cylinder wind cooling Silent gasoline generator group according to claim 1, is characterized in that, is also provided with to the air guide sleeve extending in casing on described bonnet, and the left port of described air guide sleeve and the right-end openings of described exhaust box are tightly connected.
5. double cylinder wind cooling Silent gasoline generator group according to claim 1, is characterized in that, above-mentioned casing is connected to form by inverted box, crossbeam and rear box from left to right, and described crossbeam is fixed on described chassis, and described exhaust box is fixed on crossbeam.
6. double cylinder wind cooling Silent gasoline generator group according to claim 1, is characterized in that, described generator dividing plate and described exhaust box and generator tail end joint are provided with the cotton felt of sealing.
7. double cylinder wind cooling Silent gasoline generator group according to claim 1, is characterized in that, described box inside pastes acoustical cotton, described exhaust box outside bag heat insulation foam felt.
8. double cylinder wind cooling Silent gasoline generator group according to claim 5, is characterized in that, vent is arranged in the both sides of described rear box, and described vent is venetian blind.
9. double cylinder wind cooling Silent gasoline generator group according to claim 5, is characterized in that, this double cylinder wind cooling gasoline engine generator group also comprises at least one fuel tank, and fuel tank is arranged in the below of twin cylinder engine and generator.
CN201410093994.6A 2014-03-14 2014-03-14 Double-cylinder air-cooled mute gasoline engine generator unit Pending CN103939206A (en)

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CN201410093994.6A CN103939206A (en) 2014-03-14 2014-03-14 Double-cylinder air-cooled mute gasoline engine generator unit

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107387236A (en) * 2017-08-30 2017-11-24 奇瑞汽车股份有限公司 A kind of portable high power gas-liquid-liquid three-phase flow
CN108194196A (en) * 2018-03-16 2018-06-22 宁德本田动力有限公司 A kind of low noise air-cooled diesel variable-frequency power generation unit cooling system
CN108301921A (en) * 2017-01-11 2018-07-20 上海怡允环境科技有限公司 A kind of sound insulation of engine, noise reduction, exhaust treatment system
CN111042915A (en) * 2019-12-31 2020-04-21 重庆鼎工机电有限公司 Cooling water circulation system of mute box unit
RU2809591C1 (en) * 2023-05-02 2023-12-13 АКЦИОНЕРНОЕ ОБЩЕСТВО "АКЦИОНЕРНАЯ КОМПАНИЯ "ТУЛАМАШЗАВОД" (АО "АК "Туламашзавод") Diesel generator unit

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Publication number Priority date Publication date Assignee Title
US4907546A (en) * 1987-12-02 1990-03-13 Kubota Ltd. Air-cooled type cooling system for engine working machine assembly
CN101446232A (en) * 2008-09-28 2009-06-03 无锡开普动力有限公司 Air-cooled generator set
JP2010106696A (en) * 2008-10-28 2010-05-13 Yanmar Co Ltd Engine generator
CN102192005A (en) * 2011-04-13 2011-09-21 双悦(福建)动力机械有限公司 Medium-sized double-cylinder air cooling super-silent gasoline generator set
CN202866991U (en) * 2012-10-12 2013-04-10 苏州晨浩动力设备有限公司 Air cooling double-cylinder dipolar low-noise gasoline generating set
CN203769938U (en) * 2014-03-14 2014-08-13 江苏苏美达机电产业有限公司 Double-cylinder air cooling silent petrol generating set

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4907546A (en) * 1987-12-02 1990-03-13 Kubota Ltd. Air-cooled type cooling system for engine working machine assembly
CN101446232A (en) * 2008-09-28 2009-06-03 无锡开普动力有限公司 Air-cooled generator set
JP2010106696A (en) * 2008-10-28 2010-05-13 Yanmar Co Ltd Engine generator
CN102192005A (en) * 2011-04-13 2011-09-21 双悦(福建)动力机械有限公司 Medium-sized double-cylinder air cooling super-silent gasoline generator set
CN202866991U (en) * 2012-10-12 2013-04-10 苏州晨浩动力设备有限公司 Air cooling double-cylinder dipolar low-noise gasoline generating set
CN203769938U (en) * 2014-03-14 2014-08-13 江苏苏美达机电产业有限公司 Double-cylinder air cooling silent petrol generating set

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108301921A (en) * 2017-01-11 2018-07-20 上海怡允环境科技有限公司 A kind of sound insulation of engine, noise reduction, exhaust treatment system
CN107387236A (en) * 2017-08-30 2017-11-24 奇瑞汽车股份有限公司 A kind of portable high power gas-liquid-liquid three-phase flow
CN108194196A (en) * 2018-03-16 2018-06-22 宁德本田动力有限公司 A kind of low noise air-cooled diesel variable-frequency power generation unit cooling system
CN111042915A (en) * 2019-12-31 2020-04-21 重庆鼎工机电有限公司 Cooling water circulation system of mute box unit
CN111042915B (en) * 2019-12-31 2024-01-26 重庆鼎工机电有限公司 Cooling water circulation system of mute box unit
RU2809591C1 (en) * 2023-05-02 2023-12-13 АКЦИОНЕРНОЕ ОБЩЕСТВО "АКЦИОНЕРНАЯ КОМПАНИЯ "ТУЛАМАШЗАВОД" (АО "АК "Туламашзавод") Diesel generator unit

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Application publication date: 20140723

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