CN102477898B - With the generator set of housing - Google Patents
With the generator set of housing Download PDFInfo
- Publication number
- CN102477898B CN102477898B CN201110381958.6A CN201110381958A CN102477898B CN 102477898 B CN102477898 B CN 102477898B CN 201110381958 A CN201110381958 A CN 201110381958A CN 102477898 B CN102477898 B CN 102477898B
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- Prior art keywords
- generator set
- housing
- air
- air inlet
- inlet system
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- 239000007789 gas Substances 0.000 claims abstract description 98
- 238000002485 combustion reaction Methods 0.000 claims abstract description 82
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- 238000013022 venting Methods 0.000 claims abstract description 25
- 239000002912 waste gas Substances 0.000 claims abstract description 19
- 238000009423 ventilation Methods 0.000 claims description 11
- 230000010355 oscillation Effects 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 238000010304 firing Methods 0.000 description 6
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- 239000013013 elastic material Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
- F01N1/083—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling using transversal baffles defining a tortuous path for the gases or successively throttling gas flow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/10—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L50/15—Electric propulsion with power supplied within the vehicle using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines with additional electric power supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/1017—Small engines, e.g. for handheld tools, or model engines; Single cylinder engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/10203—Rotary, e.g. "Wankel", engines; Engines with cylinders in star arrangement; Radial piston engines; W-engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
- F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2490/00—Structure, disposition or shape of gas-chambers
- F01N2490/15—Plurality of resonance or dead chambers
- F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/10—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for stationary applications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
- F01N3/043—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
- F01N3/046—Exhaust manifolds with cooling jacket
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The present invention relates to a kind of generator set, be especially applicable to a kind of generator set of the distance increasing unit in Motor Vehicle, it has: internal-combustion engine; Electromechanical energy conversion device; Housing.This housing at least surrounds described internal-combustion engine, preferably holds described internal-combustion engine and described electromechanical energy conversion device at least in subregional.Described internal-combustion engine at least has air inlet system and exhaust extractor.According to the present invention, air flows in described housing through gas inletting device, and waste gas is transported to venting gas appliance by described exhaust extractor.In order to reduce when air enters and waste gas discharge time emitting noise, these gases are all correspondingly carried by acoustic attenuation device.
Description
Technical field
The present invention relates to a kind of generator set, it is specially adapted to the distance increasing unit in electric motor vehicle and it preferably has rotary piston engine, and especially preferred is have Wankel engine.
Background technique
To having in the exploitation by means of the electric drive motor-car of petrol-electric generating set (distance increasing unit) for extending effective operating range, occurred some technical problems, it only has very little meaning so far in Rail car manufacture.
For in a usual manner by oil-engine driven Motor Vehicle, in running process, reciprocating-piston engine is mechanically connected by transmission device and driving wheel.Constantly make a noise from reciprocating-piston engine in traveling and vibrate, it is in fact the impact by load, especially by the impact of rotating speed.
In the Motor Vehicle with electric drive and distance increasing unit, internal-combustion engine generally cuts out in a usual manner and starts in the process of moving in the not direct acting situation of driver, preferably depends on the state of battery.The special case of the combination drive being serial ports is can be understood as by the driving of the Motor Vehicle of distance increasing unit.Internal-combustion engine has the roadability of the travelling state directly not depending on Motor Vehicle.In such Motor Vehicle, especially extra high requirement is proposed to vibration characteristics and noise properties (NVH).If independently produce extra noise and/or vibration by distance increasing unit device with the travelling state of Motor Vehicle, the occupant of Motor Vehicle will feel disturbed.
A kind of internal-combustion engine is known to, especially a kind of Wankel engine be coupled with electromechanical energy conversion device from prior art.From the known combination of a kind of internal-combustion engine and generator of DE8104378U1, wherein this combination is surround by sound attenuation.The axle of described generator arranges air blast wheel and is held by air trapping shell.
DE2246569A discloses a kind of sound attenuation of generator set, and it has upper and lower and cool air well (K ü hlluftschacht).At this, the air well of fresh air is arranged on the bottom of this housing and blast pit is arranged on top.
Summary of the invention
The object of the invention is the air supply system of the optimization proposing a kind of generator set internal-combustion engine, it is especially suitable as the distance increasing unit in Motor Vehicle, has sound attenuating as well as possible.
According to the present invention, this object reaches by a kind of device according to claim 1, and the scheme of the optimization of this device can obtain from the scheme described by dependent claims.
A kind of generator set, is especially applicable to a kind of generator set of the distance increasing unit in Motor Vehicle, has
Internal-combustion engine;
Electromechanical energy conversion device;
Housing.This housing at least holds described internal-combustion engine, preferably holds described internal-combustion engine and described electromechanical energy conversion device at least in subregional.Described internal-combustion engine has at least
Air inlet system, and
Exhaust extractor.
According to the present invention, air flows in described housing through gas inletting device, and waste gas is sent to described venting gas appliance by described exhaust extractor.Enter emitting noise when discharging with waste gas to be reduced in air, these gases are all correspondingly transmitted by a kind of acoustic attenuation device.
Referring to the distance increasing unit with Wankel engine, the present invention is described, the piston operation be substantially triangular in shape in this motor is in being arranged on the eccentric shaft in motor shell.Certain the present invention can also be used for the Wankel engine with two, four or more piston angles (Kolbenecken), and usually can also be used for having the rotary piston engine of the rotary-piston of Central places running in described housing.In addition, the present invention can also be used for two, three or more adjoin the rotary piston engine of the piston of setting.
Electro-motive vehicle in meaning of the present invention is interpreted as a kind of generally by the Motor Vehicle of at least one electrical motor driven.So a kind of electric motor especially can be regarded as electromechanical energy conversion device, wherein by electromechanical energy conversion device electric energy can be converted to mechanical energy and vice versa.The electric energy provided by described generator set is generally used for the effective travel extending described electric vehicle.
Generator set in meaning of the present invention is interpreted as chemistry being fettered energy (chemischgebundeneEnergie) wherein and first converts especially by the energy that exothermic reaction produces a kind of device that then mechanical energy convert electric energy to.Become mechanical energy can adopt internally fired internal-combustion engine chemistry constraint transformation of energy.Internally fired internal-combustion engine is especially constructed to reciprocating piston or rotary piston engine Wankel engine in other words.In order to this mechanical energy is converted to electric energy, preferably use the electromechanical energy conversion device with generator operation.
Distance increasing unit in meaning of the present invention is interpreted as a kind of device with at least one internal-combustion engine and an electromechanical energy conversion device.Wherein, described internal-combustion engine especially has substantially identical rated power with described electromechanical energy conversion device.Described distance increasing unit is for extending the effective travel of described electro-motive vehicle.In order to extend the effective travel of described electric vehicle, preferably in described internal-combustion engine, chemistry constraint transformation of energy be become mechanical energy and being preferably directly transferred in described electromechanical energy conversion device.In this electromechanical energy conversion device, described mechanical energy is converted to electric energy, be then transported in energy storage device and store and/or be transported at least one electric motor, thus, such electric drive motor-car especially has the mixed power module of serial.In addition, preferably described electromechanical energy conversion device can be coupled with the transmission shaft of described internal-combustion engine directly or indirectly, preferably the transmission shaft of described internal-combustion engine and the transmission shaft of described electromechanical energy conversion device are arranged mutually coaxially, and especially preferred is that described electromechanical energy conversion device and described internal-combustion engine have a common axle to carry out power delivery.
Housing in meaning of the present invention is interpreted as a kind of wall holding at least in subregional or hide described internal-combustion engine, preferably also holds at least in subregional or hides described electromechanical energy conversion device.Especially, described housing substantially fully holds or hides this two machines.Preferably described housing forms the space of base closed, and in particular for sound attenuating, but the space of this base closed also makes it possible to internal combustion engine conveying air and releases gas, especially can discharge the waste gas of described internal-combustion engine.The air-borne sound sent from generator set to environment is reduced preferably by this housing.Further preferably, described housing is arranged for and stops the environmetal impact of these two machines, or perhaps for reducing its impact on environment.Preferably, affect heat release in the region of outside by described housing, refer in particular to the heat produced in described internal combustion engine operation process, preferred influence mode reduces or prevents.
Internal-combustion engine in meaning of the present invention is interpreted as so a kind of device, and its chemistry constraint transformation of energy becomes mechanical energy, preferably by the chemistry constraint energy that a kind of exothermic reaction produces, especially produces in internally fired mode.Further preferably, internal-combustion engine is reciprocating-piston engine, preferably rotary piston engine, and especially preferred is Wankel engine.Preferably, the piston be substantially triangular in shape in Wankel engine carries out the motion of planet sample in motor shell.Described rotary piston is especially bearing in and is designed on the transmission shaft of eccentric shaft for this reason.Preferably, described eccentric shaft operates in a housing.The present invention can also be used in the rotary piston at two, four or more piston angles, and especially may be used for having rotary piston engine and the reciprocating-piston engine of the rotary-piston of Central places running in housing.In addition, the present invention can also be used for two, the rotary piston engine of piston that three or more are disposed adjacent.
Electromechanical energy conversion device in meaning of the present invention is interpreted as mechanical energy to convert electric energy to and electric energy can be converted to the device of mechanical energy.Preferably, described electromechanical energy conversion utensil has transmission shaft.Further preferably described electromechanical energy conversion device is embodied as generator, and especially preferred is be embodied as non-salient pole generator.
Air inlet system in meaning of the present invention is interpreted as a kind ofly making air enter device in described internal-combustion engine by it, and this air is the air that sends from described casing surroundings or sends from described enclosure interior.Preferably, this air is used for a kind of exothermic reaction in described internal combustion engines.Further preferably, air inlet system can cut out by control gear or open, preferably by valve or to be closed by a kind of flip cover assembly or open.Preferably air is filtered when flowing through described air inlet system.
Exhaust extractor in meaning of the present invention is interpreted as a kind of device waste gas can drained from internal-combustion engine, and this waste gas produces especially by exothermic reaction, the waste gas especially produced in described internal-combustion engine.Exhaust extractor at least piecewise has tubular cross section.Preferably, from the firing chamber of described internal-combustion engine, waste gas is transported to described venting gas appliance by described exhaust extractor.
Gas inletting device in meaning of the present invention is interpreted as air-flow can flow into a kind of device in described housing by it.The noise especially produced in described internal combustion engine operation process in described housing can be stoped outwards to send from described housing or at least make it to be difficult to outwards send especially by this air-flow inletting device.Reduce preferably by gas inletting device or especially preferred be noise when preventing air-flow from flowing into described housing.Gas inletting device can be regarded as the space in the wall of described housing.
Gas exhausting device in meaning of the present invention is interpreted as air-flow can flow out described housing a kind of device by it.Stop the noise that especially produces in described internal combustion engine operation process in described housing outwards to send from described housing especially by this gas exhausting device or at least make it to be difficult to outwards send.Especially, gas exhausting device can be regarded as the space in the wall of described housing.
Ventilation plant in meaning of the present invention is interpreted as the device of a kind of setting for generation of air-flow.Described ventilation plant especially produces from described housing to the air-flow in described housing or the air-flow along described internal-combustion engine direction.
Venting gas appliance in meaning of the present invention is interpreted as a kind of device can being derived the waste gas produced in internal-combustion engine in running by it.For this reason, described venting gas appliance is connected with exhaust extractor directly or indirectly.Especially in described venting gas appliance, purify described waste gas, and described venting gas appliance also plays acoustic attenuation device.
One preferred embodiment in, air is carried through described gas inletting device by described ventilation plant, and this air-flow is thermally equilibrated in particular for the cooling of described internal-combustion engine and described enclosure interior.Especially can described cool air stream for giving to be matched with cool air needs by described ventilation plant.Described cool air requirement is general not proportional with described internal-combustion engine rotational speed.Excessive cool air stream can be avoided by a kind of to flow through described housing with the ventilation plant that internal-combustion engine rotational speed does not associate.Further preferably, described gas inletting device has acoustic attenuation device.Acoustic attenuation device is interpreted as resonance device, maze device or absorption plant.In maze device, turned to by least one, flow through relative rectilinear, extend the path that air-flow must be turned back through gas inletting device, thus especially affect, preferably make it to be difficult to or to stop sound wave to be overflowed through described device.In absorption plant, reduce acoustic energy particularly by gas molecule friction, preferably acoustic energy is delivered sound absorbing material.In resonance device, affect sound wave especially by anti-phase sound wave, preferably stop sound wave.
Preferably, air inlet system has shunting device.Air, the air needed for the burning of especially described internal combustion engines, to be arrived in described air inlet system by shunting device and arrives at least one firing chamber of described internal-combustion engine.Air-flow decoupling is supplied with cooling by the described shunting device required air-flow that makes to burn.Generally different to the needs of these two kinds of air-flows.Thus can according to combustion in IC engine need come tuning described shunting device, by this tuning air-flow that can obtain weak especially noise.
Further preferably, described venting gas appliance is arranged in described outside, thus almost can not transmit used heat to described enclosure interior.In described enclosure interior, arrange described electromechanical energy conversion device, it generally has efficiency that is a kind of and temperature correlation.By described electromechanical energy conversion device is arranged in described outside, can make to cool described shell intracorporeal space only needs little cooling supply air-flow, and is associated with less emitting noise to the minimizing of cooling supply airflow requirement.
Further preferably described housing has gas exhausting device, and described gas exhausting device substantially holds described exhaust extractor in the region of the wall of described housing.Preferably, described housing has fiber connecting material or other plastics as constituent element.Plastics generally have relatively little heat resistance.By this formation of described gas inletting device, generally the wall of relatively hot exhaust extractor and described housing can be carried out hot decoupling, described exhaust extractor is not sent to described housing vibration and can not causes noise thus simultaneously.
Another preferred embodiment in, described air is carried through described gas inletting device by ventilation plant.Air through described gas inletting device conveying arrives at described air inlet system at least in part and arrives at least one firing chamber of described internal-combustion engine.Substantially in this embodiment only to delivery air in described housing, thus this housing can be implemented carry out isolates sound fairly simplely.
Further preferably, described venting gas appliance is arranged on described enclosure interior in this embodiment.Described venting gas appliance only can be sent to little audio emission the environment holding described housing, because this audio emission has additionally been decayed by described housing thus.When flowing out described housing, described waste gas mixes with cool air, thus less underground heat loads described housing, and preferably this housing can be implemented to more simply and sound good especially isolation.
In a further preferred embodiment, air to arrive at described air inlet system from described enclosure interior and arrives at least one firing chamber of described internal-combustion engine.Preferably, shunting device is also arranged to be used for burning in described internal-combustion engine required air on the housing.Preferably, this shunting device to be sent to air described air inlet system from described outside and to be sent at least one firing chamber of described internal-combustion engine.Preferably, air quantity can be controlled control in other words from the proportioning between the inside of described housing and the air transmitted from the export-oriented described internal-combustion engine of described housing.Further preferably, as controlling air quantity or controlling, from the parameter of the proportioning between described enclosure interior and the air transmitted from the export-oriented described internal-combustion engine of described housing, at least to need the temperature considering described enclosure interior.Other parameter preferably can called in this adjustment target is the charged state of temperature outside the temperature of described internal-combustion engine, described housing and described energy storage device.By transmitting air from described enclosure interior to described air inlet system, negative pressure can be produced in described enclosure interior.Especially, due to this negative pressure, air-flow flows through described gas inletting device, and this air-flow is preferably for cooling described enclosure interior space and partly for the air-flow of described combustion in IC engine.By this set, negative pressure can be produced in the inner space of described housing, preferably by means of the air inletting device reduced or preferably carry air without air inletting device in described housing.Produce little audio emission especially by the air inletting device at least reduced and described housing can be implemented simplifiedly further.
Further preferably, in this embodiment described venting gas appliance to be arranged on described housing outer and thus do not participate in fact the heating in described enclosure interior space.The air of especially described enclosure interior suction is discharged from described housing by described internal-combustion engine and described exhaust extractor.Preferably, the exit orifice that flows out from the inner space of described housing not used for air of described housing.Further preferably, described exhaust extractor at least can be streamed by heating agent in the region that it is from inside to outside left via the wall of described housing.Preferably, described exhaust extractor can be streamed by liquid cooling medium at least in subregional, is especially streamed by cold water, is preferably streamed by the cold water flowed out in the cool cycles from described generator set.
One preferred embodiment described in air inlet system there is acoustic attenuation device.Preferably described acoustic attenuation device is based on resonance sound attenuation principle and especially a kind of resonance device.At this, the principle of described resonance sound attenuating should be understood to a kind of at least one acoustic reflection to noise source or produce the device of at least one sound wave anti-phase in fact.Described noise source especially can be regarded as described internal-combustion engine.
Preferably, for the quality that can vibrate that the device of resonance sound attenuating has spring and associates with this spring.Preferably, spring is elastic material manufacture, especially with spring steel or the parts with plastics manufacture, further preferably, the device that spring can be flow through by the magnetic line of force or electric current produces.Particularly preferably be, spring can be produced by gaseous material, especially pneumatic spring.Vibratile quality especially can produce by having the solid determining volume.Preferably quality can be produced by gaseous material, is preferably produced by air, and wherein this gas gets a predetermined volume.
Preferably, resonance device has cavity resonator (Hohlraum-Resonator), particularly preferably is and has helmholtz resonator.Further preferably resonance device have especially one-sided opening, be preferably tubular cavity.Especially described cavity is open along the direction of air inlet system, and preferably such resonance device forms the volume be communicated with described air inlet system.The length particularly preferably being described cavity is the wavelength being tuned in the described noise source that will decay.Further preferably, this length be in fact described noise source especially the first harmonic of the audio emission of internal-combustion engine, second harmonic, three times or four-time harmonic wavelength 1/4th.Especially preferred, described resonance device is a kind of quarter-wave limit resonator.Further preferably described resonance device is interpreted as a kind of loudspeaker arrangement, and it produces substantially anti-phase with the audio emission of internal-combustion engine sound wave.Contrary with the internal-combustion engine in conventional maneuver car, the internal-combustion engine of generator set operates with less discrete rotating speed shelves, thus basic only generation has the noise of less discrete overtone order, thus resonance device can produce sound attenuating good especially.
One preferred embodiment in, described acoustic attenuation device has the resonance device with multiple resonator.Preferably, at least two this resonators have different property to oscillations, and especially preferred is that 3,4,5 or more resonator have different property to oscillations.Find by measuring, 1 time, 2 times of described noise source of at least decaying and 3 subharmonic sound waves just can reach the reduction of significant sound; By the resonance device with multiple different property to oscillation, good sound attenuation can be reached, and especially can be produced by different resonators with the resonance device of multiple different property to oscillation.
In a particularly preferred mode of execution, described air inlet system, especially in order to sound attenuating, and has with three resonators and thus has the resonance device of three different property to oscillations.Preferably each gas volume having self of these resonators.These gas volumes especially fill with air.These gas volumes especially play the spring assembly of described resonance device.Carry out by means of the described gas volume be connected with different quality time tuning to the different frequency of described resonator.Preferably, described different quality can reach by different pipe diameters or preferably by different tube length, wherein said gas volume by means of such pipe and the airflow connection that will cushion, especially with described airflow connection.Further preferably, the different frequency of tuning described resonator particularly changes described gas volume amount carry out by changing described gas volume.Preferably described resonance device is arranged on the diverse location of described air inlet system, and that resonator further preferably with maximum gas volume is arranged in being opposite in fact on a side having the resonator of less gas volume of described air inlet system.By the side opposed in fact that described resonance device is distributed in described air inlet system reaching to noise source, tuning especially to the good especially resonance device of described internal-combustion engine, and reach a kind of compact structure mode of described air inlet system.
In a particularly preferred mode of execution, the syntonizer for this reason arranged of described resonance device has the low-limit frequency of described noise source, especially described internal-combustion engine, with the maximum gas volume of described resonance device of decaying.Further preferably, the low-limit frequency decayed by its resonance device be air in air inlet system with 1 subharmonic frequency of frequency of its vibration.Further preferably, higher harmonics, particularly 2 times or 3 subharmonic frequencies are correspondingly by the resonator attenuation of described resonance device.The gas volume separately by these resonators with itself can be tuned in described noise source especially well described resonance device.
Another preferred embodiment in, described air inlet system is arranged on described outside.The power of internal-combustion engine generally depends on the temperature of the air being delivered into described air inlet system.If described air inlet system is arranged on outside described housing, the intensification that air is gone on the road of described internal-combustion engine at it is less, then described internal-combustion engine can run when higher efficiency and few audio emission.
One preferred embodiment in, be connected with described housing described air inlet system substantially rigid.Preferably described air inlet system engages (stoffschlussig) with described case material, shape coordinates or power is connected ordinatedly, is preferably threaded, rivets, welds, buckle or clamping.By being rigidly connected, the eigen frequency of described housing can being changed by the additional quality without spring connection of described air inlet system, thus reduce the sound reflection of described housing.
In a further preferred embodiment, described air inlet system is connected with described housing substantially quiveringly.Preferably described air inlet system oscillatory extinction device connects on the housing.Preferably, oscillatory extinction device has at least one attenuation parts, particularly preferably is the attenuation parts with interior decay, such as elastomer element or the part that manufactures with other elastomeric plastics.Further preferably, oscillatory extinction device can also have the helical spring, disc spring, latch plate or the spring that manufacture with metallic material.Especially preferred is that the vibration of described air inlet system is hung and can be engaged into by shaft-like part in annular in fact soft flexible part and reach.At this, this shaft-like part is preferably one-body molded on described air inlet system, and described soft elastic material is connected with described housing or another bearing structure.Connected quiveringly by described air inlet system and can reach on the housing: described air inlet system less by, even completely not by the vibration of especially described housing or the oscillation excitation of described internal-combustion engine, and thus release less audio emission.
One preferred embodiment in, described internal-combustion engine is rotary piston engine, especially Wankel engine.Relative to the reciprocating-piston engine of routine, under identical power situation, rotary piston engine there is the emitting noise of upper frequency and described housing quality is less when to decay preferably the vibration of this upper frequency.
Accompanying drawing explanation
Further feature of the present invention, advantage and mode of execution are illustrated by accompanying drawing below and provide.In the accompanying drawings:
Fig. 1 illustrates the generator set with housing and the venting gas appliance in outside,
Fig. 2 illustrates the generator set with housing and the venting gas appliance in inside,
Fig. 3 illustrates the exhaust extractor of generator set, water-cooled,
Fig. 4 illustrates the different variants of the resonator for sound attenuating,
Fig. 5 illustrates the variants of the suspension of air inlet system,
Fig. 6 illustrates an air inlet system.
Embodiment
Setting shown in Figure 1 generator set 2 within the case 1.Housing 1 has gas inletting device 14 and gas exhausting device 7.The air of the combustion of described internal-combustion engine is supplied by air inlet system 11, and described internal-combustion engine is the constituent element of generator set 2, and described air inlet system has shunting device 11a.In order to sound attenuating, described air inlet system has resonance device 17.The air of the inner especially cooled electric generator group 2 of cooling housing is sent in housing 1 by gas inletting device 14.This air-flow is especially controlling to flow into described housing 1 by ventilation plant 5.This air is flowed out from housing 1 by gas exhausting device 14 again.Described gas exhausting device 14 has maze device 20, and described gas exhausting device 7 has maze device 20 equally as acoustic attenuation device.It is inner that venting gas appliance 8 is arranged on housing 1.The waste gas sent from described internal-combustion engine is sent to venting gas appliance 8 by exhaust extractor 12.Described exhaust extractor 12 is held by gas exhausting device 7 in the region that it stretches out via housing 1 wall.The air-flow flowing through this gas exhausting device 7 surrounds the exhaust extractor 12 of heat.To a great extent the wall of described housing 1 and described exhaust extractor 12 heat can be kept apart by arranging of this gas exhausting device 7.
Setting shown in Figure 2 generator set 2 within the case 1, wherein also show exhaust extractor 12 and venting gas appliance 8 in described housing 1 except described air inlet system.In described housing 1, air-flow is transmitted via described gas inletting device 14 by ventilation plant 5.Described air inlet system 11 is in the interior space of described housing.The opening of the air inlet system 11 that the air burnt by the internal combustion engine of generator set described in it 2 is flowed into is close to described gas inletting device 14.Gas inletting device 14 has maze device 20.Described air inlet system 11 has resonance device 17.Waste gas also just flows out described venting gas appliance 8 in the inside of housing 1, and wherein this outlet is close to described gas exhausting device 7.Namely, described waste gas streams directly flows out discharger 8 and flows out described housing 1 via described gas exhausting device 7.Described gas exhausting device 7 has acoustic attenuation device, and in this embodiment, it is maze device 20.
Setting shown in Figure 3 generator set 2 within the case 1, wherein in described housing 1, also show air inlet system 11 except described generator set 2, the latter has resonance device 17.Described exhaust extractor 12 is sent to venting gas appliance 8 waste gas from described internal-combustion engine via the wall of described housing 1.Through described exhaust extractor 12 during the wall of described housing 1 by heating agent, especially streamed by the cooling water of described generator set 2 and cooled herein.Described housing 1 does not have gas exhausting device.Gas can flow into described air inlet system 11 from the inside of described housing 1.Negative pressure can be produced in described housing by this inflow in housing 1 inside, air can be transported in housing 1 via gas inletting device 14 from described housing by this negative pressure.Described gas inletting device 14 has maze device 20.Air inlet system 11, except this air in described enclosure interior flows into possibility, also has shunting device 11a.The air of outside can be called for the burning in described internal-combustion engine by this shunting device 11a.
Fig. 4 illustrates that wherein, these resonance devices correspondingly respectively have three resonators for described gas inletting device, gas exhausting device and preferably for the different variants of the possible resonance device of described air inlet system and venting gas appliance.
Fig. 4 a) shown in the resonance device of three different so-called quarter-wave limit resonators.In this resonator, length L1-L3 is tuned in the audio frequency correspondingly will decayed.1/4th of the wavelength of the audio frequency correspondingly will decayed at this tuning L1-L3 of being interpreted as.The air-flow 15 will decayed when described air inlet system a kind ofly flows through described device along the direction of arrow and in described quarter-wave limit resonator, cause the air of corresponding standing wave thus.
Fig. 4 b) shown in the resonance device of three different mechanical resonators, this device is flow through by air-flow 15.This resonator has the spring of at least one flexible C and different quality m1-m3.Illustrated resonator can be tuned in the different audio frequencies that will decay by these different quality m1-m3.Also it is contemplated that the elasticity changing each resonator when multiple equal in quality is to carry out frequency tuning.
Fig. 4 c) shown in the resonance device of three different so-called helmholtz resonators.This resonance device is flow through by air-flow 15, is especially flow through by an air stream.This resonator comprises the spring with elasticity C, and wherein this spring is formed with the gas flow in the cavity of opening, especially air quantity by being in.This spring and a quality concur, and wherein this quality is formed by certain gas flow, especially air quantity simultaneously.This this quality entity is formed by the gas flow be in a tube.This quality is associated with described spring on the one hand, is associated on the other hand with the air-flow 15 that will decay, thus described spring to have the spring of quality (m1-m3) and relevant with the air-flow 15 that will decay.In order to described helmholtz resonator is tuned in different frequencies, described quality m1-m3 can be changed by the isomorphism type of described tube shape device, or described elasticity can be affected by changing described gas flow.
The different possibilities that air inlet system 11 shown in Fig. 5 hangs within the case 1.Fig. 5 a) shown in air inlet system 11 one vibration hang.Be connected with housing 1 by means of multiple soft elastic component at this air inlet system 11.The internal-combustion engine of generator set 2 is connected with described air inlet system by means of connection set 13.This connection set allows the motility between air inlet system 11 and described internal-combustion engine.There is elastomer in this embodiment as parts or at least can the part of deformation as connecting air inlet system 11 and the part of housing 1.Also can relative generator group move in certain region especially by this suspension air inlet system 11.Thus air inlet system 11 in fact oscillation technology with generator set 2 decoupling.When the air conveying of other air inlet system 11, no matter that is whether it has shunting device or air whether from the inside of housing or outsidely to flow into wherein, all unimportant in the suspension of air inlet system 11.
At Fig. 5 b) shown in the one of air inlet system 11 pairs of housings rigid suspended.Be connected with housing 1 by least one suspension arrangement 18 at this air inlet system 11.In so a kind of rigidly connected situation, air inlet system 11 moves in company with housing 1, thus reaches the simple especially air transmission of one, because there is not the great prolongation of the air inlet system 11 of relative housing 1.Generator set 2 is general in suspension within the case 1.Generator set 2 is decreased possible overlapping with between air inlet system by air inlet system 1 a kind of rigid suspended.Thus can simply air inlet system 11 be connected on generator set 2.
Fig. 6 illustrates air inlet system 11, wherein, air-flow 3 flows into air inlet system 11 in the drawings from below, and flows out to side along the direction of internal-combustion engine (not shown) on figure, and wherein air inlet system 11 can be connected with described internal-combustion engine by means of connection set 13.For being fixed on described housing (not shown), air inlet system 11 has at least one shaft-like part 19.In order to be fixed, this rod-like piece 19 is bonded in a soft elastic part (not shown).Air inlet system 11 has the device for the first gas volume, and it is connected with two resonance device (not shown)s.In addition, air inlet system 11 has the device for the second gas volume, and it is connected with the 3rd resonance device (not shown).Said 3rd resonance device especially arranges the vibration for attenuate lower frequency, and the first harmonic preferably for the air aspirated by described internal-combustion engine of decaying vibrates.Preferably, described resonance device causes the minimizing of the suction noise of described internal-combustion engine, and further preferably causes the improvement of filling firing chamber with air.
It is pointed out that and the combination of the device shown in suitable, different accompanying drawing and parts can also be had to be used as the present invention.
Reference numerals list:
1 housing
2 generator set
3 air-flows
4 covering devices
5 ventilation plants
6 transmission shafts
7 gas exhausting devices
8 venting gas appliance
9 for the device of the first gas volume
10 for the device of the second gas volume
11 air inlet systems
11a shunting device
12 waste gas discharge devices
13 connection sets
14 gas inletting device
15 air-flows
16 soft elastic components (weichelastischesElement)
17 resonance devices
18 suspension arrangements
19 rod-like piece
20 maze devices
Claims (17)
1. generator set (2), it has
Internal-combustion engine;
Electromechanical energy conversion device;
Housing (1), this housing holds described internal-combustion engine and described electromechanical energy conversion device at least in subregional and wherein said internal-combustion engine at least has
Air inlet system (11), and
Exhaust extractor (12),
Wherein, air (3) can flow in described housing (1) through gas inletting device (14), and waste gas is transported to venting gas appliance (8) by described exhaust extractor (12), and described gas inletting device (14) and described venting gas appliance (8) all have acoustic attenuation device
It is characterized in that, described air inlet system (11) has acoustic attenuation device.
2. generator set (2) as claimed in claim 1, it is characterized in that, described generator set (2) is for the distance increasing unit of Motor Vehicle.
3. generator set (2) as claimed in claim 1, it is characterized in that, air is carried through described gas inletting device (14) by ventilation plant (5), air arrives in air inlet system (11) by shunting device (11a), it is outside that described venting gas appliance (8) is arranged on described housing (1), described housing (1) has gas exhausting device (7), and it holds described exhaust extractor (12) in the region of the wall of described housing (1).
4. generator set (2) as claimed in claim 1, it is characterized in that, air is carried through described gas inletting device (14) by ventilation plant (5), air arrives in described air inlet system (11) at least in part, it is inner that described venting gas appliance (8) is arranged in described housing (1), and waste gas flows out described housing (1) by gas exhausting device (7).
5. generator set (2) as claimed in claim 1, it is characterized in that, air arrives at described air inlet system (11) from described housing (1) inside, or, air arrives at from described housing (1) outside via shunting device (11a), air flows into described housing (1) through described gas inletting device (14), it is outside that described venting gas appliance (8) is arranged in described housing (1), and described exhaust extractor (12) at least can be streamed by a kind of heating agent in the region that it from inside to outside stretches out through the wall of described housing (1).
6. generator set (2) as claimed in claim 5, it is characterized in that, described exhaust extractor (12) is streamed by liquid cooling medium at least in subregional.
7. generator set (2) as claimed in claim 6, it is characterized in that, described exhaust extractor (12) is streamed by the cold water of the cool cycles from described generator set (2) at least in subregional.
8. generator set (2) as claimed in claim 1, it is characterized in that, described acoustic attenuation device has resonance device (17), and wherein this resonance device is selected from a group, and this group has
Spring-quality system,
Cavity resonator,
Quarter-wave limit resonator.
9. generator set (2) as claimed in claim 1, it is characterized in that, described acoustic attenuation device has resonance device (17), and described resonance device is with different resonators and different property to oscillations.
10. generator set (2) as claimed in claim 9, is characterized in that, described resonance device is with 2,3 or 4 different property to oscillations.
11. generator set (2) according to any one of claim 8 to 10, it is characterized in that, air inlet system (11) has the resonance device with three resonators, wherein each resonator has the gas volume of self, and these gas volumes play the spring of this resonance device.
12. generator set (2) according to any one of claim 1-10, is characterized in that, it is outside that described air inlet system (11) is arranged in described housing (1).
13. generator set according to any one of claim 1-10, it is characterized in that, described air inlet system (11) is connected with described internal-combustion engine by means of connection set (13).
14. generator set according to any one of claim 1-10, it is characterized in that, described air inlet system (11) is rigidly connected with described housing (1) substantially.
15. generator set according to any one of claim 1-10, it is characterized in that, described air inlet system (11) is connected quiveringly with described housing (1) substantially.
16. generator set according to any one of claim 1-10, it is characterized in that, described internal-combustion engine is rotary piston engine.
17. generator set as claimed in claim 16, it is characterized in that, described internal-combustion engine is Wankel engine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1973/2010 | 2010-11-25 | ||
| ATA1973/2010A AT510759B1 (en) | 2010-11-25 | 2010-11-25 | POWER GENERATOR BOX WITH HOUSING |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102477898A CN102477898A (en) | 2012-05-30 |
| CN102477898B true CN102477898B (en) | 2016-03-02 |
Family
ID=46050004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110381958.6A Expired - Fee Related CN102477898B (en) | 2010-11-25 | 2011-11-25 | With the generator set of housing |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102477898B (en) |
| AT (1) | AT510759B1 (en) |
| DE (1) | DE102011119196A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2603502C2 (en) * | 2014-11-24 | 2016-11-27 | Евгений Александрович Здор | Method of exhaust gas noise reduction in a closed pipeline of internal combustion engines and a device for its implementation |
| CN109955705A (en) * | 2017-12-22 | 2019-07-02 | 武汉比亚迪汽车有限公司 | A kind of plug-in hybrid device arragement construction and vehicle |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2246569A1 (en) * | 1972-09-22 | 1974-04-11 | Eisemann Gmbh | CONTAINER FOR NOISE INSULATION FROM GENERATORS |
| DE8104378U1 (en) * | 1981-02-17 | 1981-08-13 | Fischer, Ludwig, 8399 Neuhaus | POWER GENERATION DEVICE |
| EP0950802B1 (en) * | 1998-04-17 | 2003-04-02 | Honda Giken Kogyo Kabushiki Kaisha | Engine operated working machine |
| CN201513235U (en) * | 2009-09-18 | 2010-06-23 | 广东康菱动力科技有限公司 | Noise-proof unit of vehicle-mounted generator |
| CN101761732A (en) * | 2008-12-24 | 2010-06-30 | 同方威视技术股份有限公司 | Sound insulation system for noise source |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2381497A1 (en) * | 2002-01-02 | 2003-08-01 | Peter F. Crombeen | Exhaust gas muffler |
| US20030223919A1 (en) * | 2002-05-30 | 2003-12-04 | Sehoon Kwak | Integrated thermoelectric power generator and catalytic converter |
| US7992663B2 (en) * | 2008-04-25 | 2011-08-09 | Caterpillar Inc. | Air cooling system for electric drive machine |
-
2010
- 2010-11-25 AT ATA1973/2010A patent/AT510759B1/en not_active IP Right Cessation
-
2011
- 2011-11-22 DE DE102011119196A patent/DE102011119196A1/en not_active Ceased
- 2011-11-25 CN CN201110381958.6A patent/CN102477898B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2246569A1 (en) * | 1972-09-22 | 1974-04-11 | Eisemann Gmbh | CONTAINER FOR NOISE INSULATION FROM GENERATORS |
| DE8104378U1 (en) * | 1981-02-17 | 1981-08-13 | Fischer, Ludwig, 8399 Neuhaus | POWER GENERATION DEVICE |
| EP0950802B1 (en) * | 1998-04-17 | 2003-04-02 | Honda Giken Kogyo Kabushiki Kaisha | Engine operated working machine |
| CN101761732A (en) * | 2008-12-24 | 2010-06-30 | 同方威视技术股份有限公司 | Sound insulation system for noise source |
| CN201513235U (en) * | 2009-09-18 | 2010-06-23 | 广东康菱动力科技有限公司 | Noise-proof unit of vehicle-mounted generator |
Also Published As
| Publication number | Publication date |
|---|---|
| AT510759A1 (en) | 2012-06-15 |
| AT510759B1 (en) | 2014-04-15 |
| CN102477898A (en) | 2012-05-30 |
| DE102011119196A1 (en) | 2012-05-31 |
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