CN204344186U - Naturally aspirated engine - Google Patents
Naturally aspirated engine Download PDFInfo
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- CN204344186U CN204344186U CN201420722494.XU CN201420722494U CN204344186U CN 204344186 U CN204344186 U CN 204344186U CN 201420722494 U CN201420722494 U CN 201420722494U CN 204344186 U CN204344186 U CN 204344186U
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- naturally aspirated
- aspirated engine
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- Valve Device For Special Equipments (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a kind of naturally aspirated engine, and it comprises valve timing system and gas handling system, also can comprise cooling system, camshaft, at least one cylinder, cylinder cap, oil pump, valve system and protecgulum etc.Can when taking less inner space, consuming less fuel by employing the utility model, higher output power and Maximum Torque are provided, and because motor of the present utility model has lighter weight, the overall weight of vehicle is reduced.Naturally aspirated engine of the present utility model can have the discharge capacity of 1.3L.
Description
Technical field
The utility model relates to vehicle motor field, and more specifically, relates to a kind of naturally aspirated engine, and it is specially adapted to the economical or entry level intermediate of 1.3L and following discharge capacity.
Background technique
Along with the sustainable growth of national automobile sales volume, increasing automobile to the pressure of energy-saving and emission-reduction and environmental pollution also in continuous increase.Chinese Government has formulated corresponding regulation to limit the fuel-economy performance of automobile, and takes a series of property tax incentive measure to advance vehicle energy saving.The phase III oil consumption limit value that on July 1st, 2012 comes into effect requires that the fuel consume of automobile declines 20% than second stage, and the fourth stage between 2016 to the year two thousand twenty will be 5.0L/100km to the average demands of vehicle oil consumption.In this context, the lasting demand of the small displacement engine of existence exploitation high energy efficiency, low oil consumption.
Some naturally aspirated engines are disclosed in the prior art, the 13VVT motor of such as Shanghai General Motors Corporation Limited exploitation.These motors adopt plastic air intake manifold and the intake and exhaust continuous and variable gas distribution phase techniques of variable air inlet length usually, make them can carry out large moment of torsion in speed end and low speed end to export, thus there is good power performance, and Chinese five-stage emission request can be met.But, because the Power output of these motors is generally not enough, can not meet SUV or transboundary vehicle etc. power performance is required to the application demand of higher vehicle.Therefore, have that development technique is more advanced, the lasting demand of the better naturally aspirated engine of performance.
Model utility content
An object of the present utility model is to provide a kind of naturally aspirated engine, and it can provide stronger power and moment of torsion to export, to solve problem mentioned above and other problems.
The purpose of this utility model is achieved by the following technical solution:
A kind of naturally aspirated engine, it comprises:
Valve timing system, it comprises CMPS Camshaft Position Sensor, hydraulic control valve and camshaft phase adjuster, wherein, CMPS Camshaft Position Sensor is arranged on camshaft cover and covers, and camshaft phase adjuster and hydraulic control valve are arranged on the front end of admission cam shaft, control unit for vehicle determines according to the signal of CMPS Camshaft Position Sensor, air flow sensor and throttle position sensor the control command controlling camshaft phase, hydraulic control valve and then actuating cam axle phase regulator, thus regulate port timing to shift to an earlier date or postpone;
Gas handling system, it is positioned at the top of naturally aspirated engine.
Above-mentioned naturally aspirated engine, also comprise cooling system, it comprises: main thermostat, the cylinder body water jacket be fluidly communicated with main thermostat and cylinder cover water jacket, and secondary thermostat, secondary thermostat is configured to side makes cylinder body water jacket and cylinder cover water jacket converge, and its opposite side is communicated with radiator, and control the flow of the working fluid in cylinder body water jacket in secondary thermostat is set to after naturally aspirated engine starts heating warming-up process, make the working fluid stagnation in cylinder body water jacket.
Above-mentioned naturally aspirated engine, it comprises the camshaft being integrated with low friction performance rolling bearing.
Above-mentioned naturally aspirated engine, it comprises at least one cylinder, and each cylinder has two intake valves and two exhaust valves, and on each intake valve, be provided with an oil sprayer.
Above-mentioned naturally aspirated engine, it also comprises cylinder cap, and cylinder cap comprises integrated gas exhaust manifold and chain-wheel box.
Above-mentioned naturally aspirated engine, it also comprises the oil pump be arranged in the upper oil sump of naturally aspirated engine, and oil pump is electromagnetic-valve control type, and has two-stage variable discharge capacity, and is configured to be driven by crankshaft sprocket.
Above-mentioned naturally aspirated engine, it also comprises valve system, and it comprises roller rocker arms and hydraulic tappet.
Above-mentioned naturally aspirated engine, it also comprises protecgulum, and protecgulum is integrated with Front oil seal and has radiation tendon structure.
Above-mentioned naturally aspirated engine, naturally aspirated engine also comprises the water pump being integrated with interface.
Above-mentioned naturally aspirated engine, the discharge capacity of naturally aspirated engine is 1.3L.
The beneficial effects of the utility model are: motor of the present utility model have rational in infrastructure, design the plurality of advantages such as ingenious, output power is high, oil consumption is low, lightweight, volume is little.Compared with the motor of prior art, motor of the present utility model can when taking less inner space, consuming less fuel, higher output power and Maximum Torque are provided, and because motor of the present utility model has lighter weight, the overall weight of vehicle is minimized.Motor of the present utility model can obtain the maximum power output of 75kw when rotating speed is 6000rpm, and the Maximum Torque that can obtain 128Nm when rotating speed is 4000rpm exports.Rotating speed be 2000rpm, under pressure is the operating mode of 2 bar, the sub load specific fuel consumption of motor of the present utility model is less than 360g/kwh, thus meets the requirement of Chinese every environmental protection and energy saving policy.
Accompanying drawing explanation
Below with reference to accompanying drawing and preferred embodiment, the utility model is explained in further detail, but it should be known that these accompanying drawings only for explaining that the object of preferred embodiment designs, and therefore should as the restriction to the utility model scope.In addition, unless otherwise indicated, accompanying drawing is only be intended to conceptually represent the composition of described object or structure and may have carried out expansiveness display, and accompanying drawing also need not be drawn according to ratio.
Fig. 1 is the stereogram of an embodiment of motor of the present utility model.
Fig. 2 is the stereogram at another visual angle of the embodiment shown in Fig. 1.
Fig. 3 is the stereogram of the cylinder body of the embodiment shown in Fig. 1.
Fig. 4 is the firing chamber of the embodiment shown in Fig. 1 and the stereogram of air flue.
Fig. 5 is the stereogram of the camshaft cover cap of the embodiment shown in Fig. 1.
Fig. 6 is the stereogram of the intake manifold of the embodiment shown in Fig. 1.
Fig. 7 is the stereogram of the cylinder cap of the embodiment shown in Fig. 1.
Fig. 8 is the oil pump of the embodiment shown in Fig. 1 and the stereogram of drain pan for oiling.
Fig. 9 is the stereogram of the water pump of the embodiment shown in Fig. 1.
Figure 10 is the stereogram of the protecgulum of the embodiment shown in Fig. 1.
Figure 11 is the stereogram of the timing system of the embodiment shown in Fig. 1.
Figure 12 is the stereogram of the valve system of the embodiment shown in Fig. 1.
Figure 13 is the stereogram of the water jacket of the embodiment shown in Fig. 1.
Figure 14 is the stereogram of the transmission system of the embodiment shown in Fig. 1.
Figure 15 is the stereogram of the camshaft of the embodiment shown in Fig. 1.
Figure 16 is the stereogram of the duel fuel injector oil rail of the embodiment shown in Fig. 1.
Figure 17 is the external characteristics performance map of the motor of the embodiment shown in Fig. 1.
Embodiment
Preferred embodiment of the present utility model is described in detail below with reference to accompanying drawing.Those of skill in the art will understand, and these describe and are only descriptive, exemplary, and should not be interpreted as defining protection domain of the present utility model.
First, it should be noted that, top mentioned in this article, bottom, upward, be define relative to the direction in each accompanying drawing towards inferior orientation term, they are relative concepts, and therefore, it is possible to diverse location at it and different practical states and change.So, these or other orientation term should be interpreted as restricted term.
In addition, it is also important to note that, for describing in embodiment herein or implicit any single technical characteristics, shown in the drawings or implicit any single technical characteristics, still can proceed combination between these technical characteristicss (or its equivalent), thus obtain other embodiments of the present utility model directly do not mentioned in this article.
It should be noted that in different drawings, identical reference number represents identical parts.
Fig. 1 is the stereogram of an embodiment of motor of the present utility model, and Fig. 2 is the stereogram at another visual angle of the embodiment shown in Fig. 1.Fig. 1 and Fig. 2 shows motor 100 of the present utility model from different angles, such as being arranged on the natural aspiration petrol engine on vehicle, this motor 100 comprises: valve timing system 1, and it is preferably intake and exhaust continuous variable valve timing (S-VVT) system of mid-OCV (Oil Control Valve) valve; Cooling jacket 2, it is preferably cross-flow, and is arranged on cylinder head; Ignition module 3, it is preferably standalone module; Cylinder body 4, it is preferably is cast by aluminum alloy; Deaerator 5, it is preferably freestanding; Throttle body 6, it is preferably electronically controlled; Intake manifold 7, it is preferably up-set type, and can be made of plastics; Camshaft 8, it is preferably integrated with rolling bearing, and has low friction performance; Duel fuel injector oil rail 9; Transmission system 10, it preferably adopts belt to carry out transmission, and is set to for three cylinder gasoline engines; Oil pump 11, it is electromagnetic-valve control type preferably, and has two-stage variable discharge capacity; And two thermostat 12.
It is pointed out that because the utility model have employed the Curve guide impeller of some novelties, therefore can carry out combination in any according to application needs to these constituent elements above-mentioned, thus form many possible technological schemes.
Such as, in one embodiment, motor accessible site has above-mentioned valve timing system 1 and intake manifold 7, to improve intake efficiency and the ride quality of motor.
Fig. 3 to Figure 16 shows the different component of motor of the present utility model.Wherein, Fig. 3 is the stereogram of the cylinder body of the embodiment shown in Fig. 1.Cylinder body 4 is preferably cast by aluminum alloy, thus reduces in weight, and the weight of motor 100 entirety is reduced.Cylinder body 4 is also integrated with chain-wheel box system, and the size of motor 100 is reduced further.
Fig. 4 is the firing chamber of the embodiment shown in Fig. 1 and the stereogram of air flue.Wherein, firing chamber 13 have employed height and rolls stream design, to improve rate of burning and to reduce the tendency that motor 100 entirety produces pinking.
Fig. 5 is the stereogram of the camshaft cover cap of the embodiment shown in Fig. 1.This camshaft cover cap 14 for holding camshaft, and have employed the structural design of high strength, to have higher rigidity, thus reduces it in the issuable distortion of the run duration of motor 100.Effectively can improve the durability of motor 100 by adopting camshaft cover cap 114 of the present utility model and extend its working life.
Fig. 6 is the stereogram of the intake manifold of the embodiment shown in Fig. 1.This intake manifold 7 is preferably compact design, and adopts up-set type framework, and namely when intake manifold 7 installation in position, it is positioned at the top of motor 100.Intake manifold 7 preferably can have the length longer than intake manifold of the prior art, to improve performance when motor 100 runs with middle low performance.This intake manifold 7 preferably can be made of plastics, but those of skill in the art will understand, and any other suitable material that intake manifold 7 also can be expected by those of skill in the art is made.Intake manifold 7 is also integrated with several parts belonging to engine management system EMS (Engine Management System) further, and be configured to that there is the design optimizing air flue resonance, to improve the performance of motor 100, make the oil consumption decline of motor 100 and output torque improves.The latter end of intake manifold 7 has bifurcation structure, to form two intake ducts, is equipped with an oil sprayer, to improve combustion efficiency in each intake duct.
Fig. 7 is the stereogram of the cylinder cap of the embodiment shown in Fig. 1.Cylinder cap 15 is preferably used for settling gas exhaust manifold (not shown), and is preferably also made up of aluminum alloy.Chain-wheel box is integrated in cylinder cap 15.
Fig. 8 is the oil pump of the embodiment shown in Fig. 1 and the stereogram of upper oil sump.Wherein, oil pump 11 is preferably electromagnetic-valve control type, and has an at least two-stage variable discharge capacity.Oil pump 11 by chain wheel drive, and is preferably driven by crankshaft sprocket 110, and can regulate the engine oil pressure of lubrication system as required, system friction merit is reduced, thus improves the fuel economy of motor 100 entirety.Oil pump 11 is preferably arranged in the upper oil sump 16 of motor 100.
Fig. 9 is the stereogram of the water pump of the embodiment shown in Fig. 1.Wherein, water pump 17 comprises integrated interface, and this water pump 17 has compact size, to be conducive to the processability improving cylinder body 4.
Figure 10 is the stereogram of the protecgulum of the embodiment shown in Fig. 1.As shown in the figure, protecgulum 18 is integrated with Front oil seal, and has radiation tendon structure.Uneven by what this arrangement creates on surface, and improve the noise in this region, vibration and travelling comfort, also, improve NVH (Noise, Vibration, Harshness) performance.
Figure 11 is the stereogram of the timing system of the embodiment shown in Fig. 1.Show valve timing system 1, it is preferably intake and exhaust continuous variable valve timing (S-VVT) system of mid-OCV valve.By adopting this valve timing system 1, contributing to air inlet VVT and responding fast, and the open and close moment of intake valve can be regulated, optimize intake and exhaust efficiency for different engine operating conditions, reach the object improving power, reduce oil consumption
Specifically, valve timing system 1 of the present utility model comprises CMPS Camshaft Position Sensor (not shown), hydraulic control valve (not shown) and camshaft phase adjuster (not shown).Wherein, CMPS Camshaft Position Sensor is arranged on camshaft cover cap 14, and camshaft phase adjuster and hydraulic control valve are arranged on the front end of admission cam shaft.Control unit of engine (ECU) is set to the control command that can determine controlling according to the signal of CMPS Camshaft Position Sensor, air flow sensor and throttle position sensor camshaft phase, hydraulic control valve and then promote phase regulator according to this control command, thus regulate port timing to shift to an earlier date or postpone, thus reach the object improving charging efficiency, reduce pumping loss, improve engine power performance and fuel economy.
Hydraulic control valve mentioned above is preferably solenoid valve.
Figure 12 is the stereogram of the valve system of the embodiment shown in Fig. 1.Valve system 10 is preferably the valve mechanism comprising roller rocker arms and hydraulic tappet.By adopting this type of mechanism, motor 100 of the present utility model can valve gap adjustment automatically, and greatly reduces required maintenance.Preferably, all do not need to safeguard during the whole operating life of motor.Adopt roller rocker arms can effectively reduce and cam contact and the frictional work that produces, thus reduce the fuel consumption of motor.
Figure 13 is the stereogram of the water jacket of the embodiment shown in Fig. 1.Wherein, cooling jacket 2 is preferably cross-flow type cylinder head cooling jacket, this makes cylinder head inside have good coolant flow paths and flowing velocity, reduces the pressure loss simultaneously, thus the cooling effectively on the ridge area of lift cylinder lid exhaust side and exhaust flange face.It should be noted that cooling jacket 2 is parts of cylinder block and head separated type cooling system of the present utility model, its detailed construction vide infra.
Figure 14 is the stereogram of the transmission system of the embodiment shown in Fig. 1.Wherein, transmission system 10 preferably adopts belt to carry out transmission, and is set to for three-port type petrol engine.By reducing the design tension force of accessory belt, transmission system 10 of the present utility model achieves the minimizing of belt transmission skidding and the reduction of noise.
Figure 15 is the stereogram of the camshaft of the embodiment shown in Fig. 1.Wherein, camshaft 8 is preferably integrated with the rolling bearing with low friction performance, to reduce the frictional loss of engine valve actuating mechanism, thus reduces the fuel consume of motor 100.The molded line of camshaft 8 is also optimized, to strengthen its ride quality.
Bent axle that the utility model additionally uses, it preferably adopts spheroidal graphite cast iron to manufacture.
Figure 16 is the stereogram of the duel fuel injector oil rail of the embodiment shown in Fig. 1.Wherein, duel fuel injector oil rail 9 plays and accelerates rate of burning and the effect improving combustion efficiency.
It should be noted that by adopting above-mentioned duel fuel injector oil rail 9, making motor 100 of the present utility model have the structure of single cylinder duel fuel injector.Specifically, motor 100 is configured to have at least one cylinder, and each cylinder has two intake valves and two exhaust valves, and on each intake valve, be equipped with an oil sprayer, this makes each cylinder have two oil sprayers, fuel sprays and enters one of two corresponding intake ducts by these two oil sprayers respectively, thus provides fuel oil to firing chamber.The beneficial effect of above-mentioned structure is adopted to be: the fuel injection quantity reducing each oil sprayer when not changing the fuel delivery of single cylinder; Under identical oily rail pressure, effectively reduce the average Suo Te diameter (SMD) of spraying mist of oil, fuel oil is atomized better; When taking into account cooling effect in cylinder, accelerating rate of burning and improving combustion efficiency.In addition, by an oil sprayer to an intake port injection, the spray angle of oil beam jetted is more accurate, thus can reduce the wet wall phenomenon in injection, makes the fuel oil of injection fully for burning.Stability when this can improve idling, improve fuel economy, hydrocarbon emission when reducing fuel consume and reduce cold start-up.
On the other hand, the cooling system of motor 100 of the present utility model have employed the design of cylinder block and head separated type cooling.Specifically, cooling liquid, after the main thermostat be arranged on cylinder body 4 enters cylinder body 4, enters cylinder body water jacket and cylinder cover water jacket respectively, and converges from secondary thermostat (not shown) subsequently and enter radiator (not shown).Secondary thermostat is set to the flow that can control cylinder body cooling liquid, and make in the heating warming-up process after motor 100 starts, cylinder body cooling liquid flows hardly, and is in stagnation or close under the state of stagnation.This is conducive to cylinder body 4 and is rapidly heated, and contributes to realizing accelerating warming-up, and reduces the friction between piston and cylinder barrel, thus contributes to improving fuel economy.In the process, the major part in cooling liquid is independently flowed into the cooling jacket 2 of cylinder cap, and this contributes to the temperature reducing the combustion chamber wall, thus under high load working condition, reduce the tendency to detonate of motor 100.
Motor 100 of the present utility model additionally uses singly balanced axis mechanism, this singly balanced axis mechanism can balance the first order reciprocating inertia force square produced in three cylinder engine running effectively, the vibration produced during being reduced in engine operation, reduce due to the uneven additional torque loss produced that operates, thus be conducive to reducing fuel consume and improving NVH performance.
Figure 17 is the external characteristics performance map of the motor of the embodiment shown in Fig. 1.Wherein, left side coordinate axes represents Engine torque, and right side coordinate axes represents engine power rating, and bottom coordinate axes represents engine speed.Illustrate in Figure 17 that the output torque of an embodiment of motor 100 of the present utility model and rated power change and the curve of change along with engine speed.Specifically, what line A showed is the situation of change of engine power rating with engine speed, and line B display is the situation of change of engine output torque with engine speed.
Table 1 lists main composition and the performance parameter of an embodiment of motor 100 of the present utility model:
Sum up it, motor 100 of the present utility model have employed multiple new design and structure.These new design and structures comprise: cool and the cooling system of the integrated gas exhaust manifold of cylinder cap by adopting cylinder body and cylinder cap separated type, to realize rapid warming-up; Adopt electromagnetic-valve control type two-stage variable oil pump, roller bearing camshaft, be back and forth light-weight design etc., to reduce frictional force; The chamber structure, independently ignition module and the Electronic Throttle Control that adopt air inlet Variable Valve Time to control, optimize, optimize control strategy and combustion efficiency.Above new design and structure significantly reduces fuel consume.By adopting gas handling system of the present utility model, combustion system and cooling system, also improve the power performance of motor 100 effectively.
The beneficial effect of many improvement of the present utility model is: motor 100 of the present utility model can obtain the maximum power output of 75kw under rotating speed is the operating mode of 6000rpm, and the Maximum Torque that can obtain 128Nm under rotating speed is the operating mode of 4000rpm exports.Rotating speed be 2000rpm, under pressure is the operating mode of 2bar, the sub load specific fuel consumption of motor 100 of the present utility model is less than 360g/kwh, thus meets the requirement of Chinese every environmental protection and energy saving policy.
By adopting aluminum alloy to come manufacture component and other loss of weight measures, the weight of motor 100 of the present utility model significantly reduces, thus reduces complete vehicle weight, and vehicle performance and fuel consume performance also improve thereupon.
The high-performance of motor 100 of the present utility model makes it be applicable to multiple vehicle, thus reduces engine development cost of production.
This specification with reference to the open the utility model of accompanying drawing, and enables those of skill in the art implement the utility model, comprises and manufactures and use any device or system, select suitable material and use the method for any combination.Scope of the present utility model limits by asking the technological scheme protected, and comprises other examples that those of skill in the art expect.As long as these type of other examples comprise the structural element of the technological scheme literal language being not different from request protection; or these type of other examples comprise and the equivalent structural elements of asking the literal language of the technological scheme protected not have essential distinction, then these type of other examples are intended to be in the determined protection domain of the technological scheme protected by the utility model request.
Claims (10)
1. a naturally aspirated engine, is characterized in that, described naturally aspirated engine comprises:
Valve timing system, it comprises CMPS Camshaft Position Sensor, hydraulic control valve and camshaft phase adjuster, wherein, described CMPS Camshaft Position Sensor is arranged on camshaft cover and covers, and described camshaft phase adjuster and described hydraulic control valve are arranged on the front end of admission cam shaft, control unit for vehicle is according to described CMPS Camshaft Position Sensor, the signal of air flow sensor and throttle position sensor determines the control command controlling camshaft phase, described hydraulic control valve and then promote described camshaft phase adjuster, thus regulate port timing to shift to an earlier date or postpone,
Gas handling system, it is positioned at the top of described naturally aspirated engine.
2. naturally aspirated engine according to claim 1, it is characterized in that, also comprise cooling system, it comprises: main thermostat, the cylinder body water jacket be fluidly communicated with described main thermostat and cylinder cover water jacket, and secondary thermostat, described secondary thermostat is configured to side makes described cylinder body water jacket and described cylinder cover water jacket converge, and its opposite side is communicated with radiator, and described secondary thermostat is set to the flow controlling the working fluid in described cylinder body water jacket in the heating warming-up process after described naturally aspirated engine starts, make the working fluid stagnation in described cylinder body water jacket.
3. naturally aspirated engine according to claim 2, is characterized in that, described naturally aspirated engine comprises the camshaft being integrated with rolling bearing.
4. naturally aspirated engine according to claim 2, is characterized in that, described naturally aspirated engine comprises at least one cylinder, and each cylinder has two intake valves and two exhaust valves, and on each intake valve, be provided with an oil sprayer.
5. the naturally aspirated engine according to any one in Claims 1-4, is characterized in that, described naturally aspirated engine also comprises cylinder cap, and described cylinder cap comprises integrated gas exhaust manifold and chain-wheel box.
6. the naturally aspirated engine according to any one in Claims 1-4, it is characterized in that, described naturally aspirated engine also comprises the oil pump be arranged in the upper oil sump of described naturally aspirated engine, described oil pump is electromagnetic-valve control type, and there is two-stage variable discharge capacity, and be configured to be driven by crankshaft sprocket.
7. the naturally aspirated engine according to any one in Claims 1-4, is characterized in that, described naturally aspirated engine also comprises valve system, and it comprises roller rocker arms and hydraulic tappet.
8. the naturally aspirated engine according to any one in Claims 1-4, is characterized in that, described naturally aspirated engine also comprises protecgulum, and described protecgulum is integrated with Front oil seal and has radiation tendon structure.
9. the naturally aspirated engine according to any one in Claims 1-4, is characterized in that, described naturally aspirated engine also comprises the water pump being integrated with interface.
10. the naturally aspirated engine according to any one in Claims 1-4, is characterized in that, the discharge capacity of described naturally aspirated engine is 1.3L.
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CN201420722494.XU CN204344186U (en) | 2014-11-27 | 2014-11-27 | Naturally aspirated engine |
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CN201420722494.XU CN204344186U (en) | 2014-11-27 | 2014-11-27 | Naturally aspirated engine |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105697080A (en) * | 2014-11-27 | 2016-06-22 | 上海通用汽车有限公司 | Natural aspiration engine |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105697080A (en) * | 2014-11-27 | 2016-06-22 | 上海通用汽车有限公司 | Natural aspiration engine |
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