CN202628191U - Air distribution controller for pneumatic automobile - Google Patents
Air distribution controller for pneumatic automobile Download PDFInfo
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- CN202628191U CN202628191U CN 201220237200 CN201220237200U CN202628191U CN 202628191 U CN202628191 U CN 202628191U CN 201220237200 CN201220237200 CN 201220237200 CN 201220237200 U CN201220237200 U CN 201220237200U CN 202628191 U CN202628191 U CN 202628191U
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Abstract
The utility model provides an air distribution controller for a pneumatic automobile. The pneumatic automobile comprises an air power engine, a main gas storage tank, a heating adjuster, a flow control valve, an auxiliary loop and a control device, wherein the air distribution controller comprises two air distribution units; and compressed air controlled by the control device passes through the air distribution units, and is respectively introduced into a left row of air cylinders and a right row of air cylinders through air inlet pipes. Furthermore, each air distribution unit comprises an air inlet cam shaft, an air inlet cam shaft shell, three air distribution modules and a high-pressure common rail constant-pressure pipe.
Description
Technical field
The utility model relates to the device that a kind of Pneumatic automobile is used, and more specifically, relates to and a kind ofly distributes compressed-air actuated control for air distribution for the multi-cylinder air-powered motor.
Background technique
Most of surface cars all adopt with fuel oil as the internal-combustion engine of working medium as power source such as automobile, truck, go-anywhere vehicle etc.This employing fuel oil is insufficient because of oil inflame on the one hand as the motor of working medium; Contain a large amount of harmful matters and befouling environment in the feasible gas of discharging; Because of the fuel oil that uses is from oil, to refine to obtain, the in short supply day by day of petroleum resources makes the development of fuel engine and utilization receive increasing restriction on the other hand.Therefore develop new, clean, free of contamination alternative energy source, and become modern vehicle development urgent problem with this alternative energy source as the power source of surface car, air-powered motor is fit to this needs just and progressively enters into common people's outlook.
Typical air-powered motor is Designer Guy Negre disclosed double fuel mode of operation motor in patent FR2731472A1 of French MDI company.On expressway, adopt conventional fuel such as gasoline or diesel oil,, pressurized air (or other any on-contaminated pressurized gass) is injected the firing chamber in low speed particularly urban district and suburbs.Though this motor has partly reduced fuel consumption, owing to still adopted fuel oil mode of operation, emission problem still to fail to solve.
For further pollution abatement; US6311486B1 discloses a kind of pure air-powered motor; Such motor has adopted three independently chambers: air-breathing-pressing chamber, expansion exhaust chamber and constant volume firing chamber; And air-breathing-pressing chamber is connected to the constant volume firing chamber through valve, and the constant volume firing chamber is connected to the expansion exhaust chamber through valve.One of problem of this motor is that time of experiencing from air-breathing-pressing chamber to the expansion exhaust chamber of pressurized gas is longer; The power source gas time that obtains the driven plunger acting is longer; Simultaneously; Fail to obtain to use from the pressurized gas that the expansion exhaust chamber is discharged, this has just limited this type efficiency of engine and single aeration continuous working period.
The application's claimant discloses a kind of air power engine assembly that can be used for transport facility in its patent documentation CN101413403 A (its international application of the same clan is WO2010051668 A1); This motor utilizes compressed air to do work and does not use any fuel; Therefore do not have toxic emission, realized " zero-emission ", and recycling waste gas generates electricity; Save the energy, reduced cost.But this motor is based on traditional four stroke engine, every rotation 720 degree of bent axle, and piston does work once.And can promote the piston acting can be in getting into cylinder the time as the high-pressure air of power source, and discharging then, promptly the stroke of compressed air engine is actual is air inlet-expansion stroke and discharge stroke.Obviously, the disclosed this four-stroke compressed air engine of patent documentation CN101413403 A has been wasted effective expansion stroke greatly, has limited the efficient of motor.And the tail gas of this motor is failed recycle well, needs enough big gas holder to lay in high-pressure air and could work the sufficiently long time.
The model utility content
Based on the problems referred to above, the utility model provides a kind of control for air distribution that is used for Pneumatic automobile, is intended to solve the pressurized air that is used for air-powered motor and regulates and allocation problem.
According to the utility model; A kind of control for air distribution that is used for Pneumatic automobile is provided; Said Pneumatic automobile comprises: air-powered motor; It comprises: about two exhaust casings, piston, connecting rod, air inlet trunnion, exhaust gear, bent axle, flywheel, oil sump, and every exhaust casing has three cylinders; Main gas holder, the decompression gas holder in itself and downstream is connected, so that required high pressure air is provided for air-powered motor; Heating controller, it is connected with the decompression gas holder, so that the pressurized air that gets into is wherein carried out supercharging and intensification; Flow control valve, it is connected with heating controller through Filter dryer, to receive the pressurized air after heating up from heating controller; Secondary circuit, it is connected between heating controller and the decompression gas holder, to send the pressurized air of Overpressure of a safety valve threshold value in the heating controller back to the decompression gas holder; Control gear, it is according to the operating mode control flow rate control valve of air-powered motor.Wherein, said control for air distribution comprises two air distribution unit, through the pressurized air of said control gear control through after the said air distribution unit again through said air inlet trunnion send into respectively said about two exhaust casings.And wherein, said air distribution unit comprises an admission cam shaft, an intake cam shaft housing, three air distribution module and a high-pressure common rail constant voltage pipe.
Preferably, said air distribution module comprises seat in controller loam cake, the controller seat of honour, following of controller, the controller, and said intake cam shaft housing is connected between the said controller loam cake and the said controller seat of honour.
Preferably, seat has valve spring hole, valve oil sealing of hole and air inlet trunnion communicated cavity from top to bottom in the said controller.
Preferably; Establish controller valve, controller valve spring, valve column sleeve, valve oil seal, controller valve cover for seat, controller cotter seat in the seat in the said controller, the said controller valve controller valve cover for seat through separately respectively is supported on the valve seat trepanning.
Preferably, between said valve oil seal and said controller valve cover for seat, have said air inlet trunnion communicated cavity, the side of this communicated cavity is provided with inlet hole, to communicate with said air inlet trunnion.
In the exemplary embodiment, said Pneumatic automobile further comprises additional air inlet loop.
Preferably, said Pneumatic automobile further comprises tail gas recycle and boost-up circuit.
Preferably; Said secondary circuit comprises auxiliary piping, safety valve, knock out drum and air supplying pump; When the pressure Overpressure of a safety valve threshold value that pressure transducer detected in the heating controller, safety valve is opened, and unnecessary high-pressure air gets in the knock out drum from heating controller and temporarily preserves.
Preferably, said tail gas recycle and boost-up circuit comprise silencing apparatus, device for recovering tail gas, filter, tail gas booster compressor, one-way valve, main gas holder branch road and heating controller branch road.
Preferably, said additional air inlet loop comprise battery unit, gate-controlled switch, direct current generator, replenish inlet air compressor and be connected in main gas holder and additional inlet air compressor between pipeline.
Preferably, said control gear comprises that data receive processing unit, operating mode determination module, air flow control module, power amplification circuit and MAP data storage.
Preferably, said heating controller comprises cooling water tank, circulating water pump, heating tank, water spout.
Preferably; The aperture of said valve spring hole, valve oil sealing of hole, air inlet trunnion communicated cavity has nothing in common with each other; The diameter in valve spring hole is greater than the diameter of valve oil sealing of hole, and less than the diameter of air inlet trunnion communicated cavity, the diameter of air inlet trunnion communicated cavity is less than the diameter of valve seat trepanning; Said controller valve cover for seat is installed in the controller valve seat trepanning, and is supported on the air inlet trunnion communicated cavity; Said valve oil seal is installed in the valve oil sealing of hole, and is supported on the controller valve spring, passes through the valve stem of controller valve in it.
Preferably; The two ends of said high-pressure common rail constant voltage pipe fixedly are equipped with the air inlet rear end cover; Has outward extending flange at its air inlet rear end cover that is connected with flow control valve; This flange extend in the pipeline between flow control valve and the high-pressure common rail constant voltage pipe, and removably is fixedly connected with pressure duct through being threaded.
Preferably, the inside at the said controller seat of honour is provided with a plurality of tappet mounting holes that are used to install tappet, and tappet is jack-up controller valve with the rotation of admission cam shaft, and high pressure air gets into the expansion exhaust chamber from high-pressure common rail constant voltage pipe.
Through the control for air distribution of the utility model, can effectively the high pressure air from the high pressure gas holder group be assigned to each cylinder of motor, thereby realize motor continuously, operation reliably.
Description of drawings
To describe now according to the preferred of the utility model but non-restrictive example, these of the utility model will become when describing in detail as follows with reference to advantages obviously with other characteristics, aspect and advantage, wherein:
Fig. 1 is the general structure schematic representation of Pneumatic vehicle that adopts the multi-cylinder air-powered motor of the utility model;
Fig. 2 is the structured flowchart of the control gear among Fig. 1;
Fig. 3 is the structural drawing of the heating controller among Fig. 1;
Fig. 4 is the three-dimensional oblique view after air-powered motor and the control for air distribution assembling among Fig. 1;
Fig. 5 laterally cuts open the sectional view of getting after multi-cylinder air-powered motor and the control for air distribution assembling of Fig. 4;
The three-dimensional oblique view of the control for air distribution among Fig. 6 Fig. 1;
Fig. 7 is the longitudinal cross-section view of the control for air distribution of Fig. 6;
Fig. 8 is the side cross-sectional view of the control for air distribution of Fig. 6.
Embodiment
Below illustrative in nature on only be exemplary and be not in order to limit the disclosure, application or purposes.Should be understood that in whole accompanying drawings, corresponding reference character is represented identical or corresponding components and characteristic.
With reference now to accompanying drawing,, Fig. 1 is the general structure schematic representation of Pneumatic vehicle that adopts the multi-cylinder air-powered motor of the utility model.As shown in Figure 1, Pneumatic vehicle comprises the vehicle frame (not shown), is supported on the chassis (not shown) on the vehicle frame and is connected a plurality of wheels 51 on the axletree.Air-powered motor 31 is supported on the chassis, and it is connected to the gearbox 40 that conventional truck adopts, and is connected to the transmission system 45 that orthodox car adopts through gearbox 40, is delivered to wheel 51 with the power with air-powered motor 31 through axletree.Axletree further is connected with brake unit 50, being that vehicle provides braking when the car brakeing.
Further with reference to figure 1, main gas holder 46 storage pressure are the high pressure air between 20MPa ~ 45MPa, are preferably 30MPa.Main gas holder 46 is connected with outside aerating equipment through aerating pipeline (unmarked), to obtain required pressurized air from pressurized air gas station or external high pressure gas tank.Main gas holder 46 is provided with the pressure gauge and the flowmeter of monitoring jar compressed air pressure and capacity, and the pressure transducer 49 that detects main gas holder internal pressure in real time, and the main gas holder pressure signal 2 that pressure transducer 49 is detected is sent to control gear 35.Main gas holder 46 and decompression are provided with vacuum pump 13 between the gas holder 5, the high pressure air main gas holder 46 in is sent in the gas holder 5 that reduces pressure when engine start or the stable operation.Decompression gas holder 5 is connected to heating controller 17 through the gas holder pipeline 14 that is provided with control valve 12.Decompression gas holder 5 is provided with the pressure transducer 49 of detected pressures, is sent to control gear 35 with the pressure signal 41 in the gas holder 5 that will reduce pressure.Heat in heating controller 17 through post-decompression high pressure air, to improve compressed-air actuated pressure and temperature.
Pressurized air through after heating controller 17 heat regulation 22 is connected to Filter dryer 23 by the road, 24 sends into flow control valve 25 by the road through filtering exsiccator 23 dried pressurized air.In alternative, also can omit Filter dryer 23, heating controller 17 can directly be connected to flow control valve 25 through pipeline.Controlled devices 35 controls of flow control valve 25, confirming the aperture and the opening time of flow control valve 25 according to the operating mode of air-powered motor 31 and driver's operation, thus the air supply of adjusting entering air-powered motor 31.Pressurized air through flow control valve 25 is regulated is sent into control for air distribution 28 through pipeline 27.Air-powered motor 31 is connected with the rotating shaft of generator 47 rotationally, to drive generator 47 generatings.The electricity that generator 47 sends changes direct current into through converter plant 48 and is stored in the battery unit 3, for other power units uses of vehicle.
The tail gas of discharging from air-powered motor 31 still has certain pressure, its can through pipeline reclaim and supercharging after reuse, thereby farthest utilize compressed-air actuated pressure energy.This tail gas recycle and boost-up circuit comprise silencing apparatus pipeline 32, silencing apparatus 30, device for recovering tail gas 29, tail gas recycle pipeline 19, filter 15, tail gas booster compressor 10, one-way valve 9, main gas holder branch road and heating controller branch road.Tail gas is admitted to silencing apparatus 30 through silencing apparatus pipeline 32, and the tail gas after the noise elimination is admitted to device for recovering tail gas 29.Device for recovering tail gas 29 can be simple gather qi together jar, also can be the container of the additional unit of bleeding., filter 15 is sent to tail gas booster compressor 10 from tail gas recycle jar 29 tail gas discharged after filtering.Tail gas booster compressor 10 is through for example being link 21 drives of belt drive unit, with the tail gas supercharging to reclaiming.Its pressure of tail gas through after 10 compressions of tail gas booster compressor is increased significantly, can reach more than 5 MPa usually.Downstream part at tail gas booster compressor 10 is provided with one-way valve 9, and the tail gas after the supercharging is sent into main gas holder 46 and heating controller 17 through one-way valve 9 respectively through main gas holder branch road and heating controller branch road.It for example is the pressure-limit valve 7 of 10MPa that main gas holder branch road is provided with that cracking pressure is set at, and is sent to main gas holder 46 with the pressurized air with higher pressure.Can be alternative be, on main gas holder branch road, be set with condenser 8, be stored in the main gas holder 46 with pressurized air cryogenic high pressure.On the pipeline of heating controller 17, be provided with sequence valve 9; When the tail gas pressure after 10 superchargings of tail gas booster compressor during less than 10MPa; It for example is that the sequence valve (this sequence valve is opened during less than 10MPa at suction pressure, closes automatically during greater than 10MPa at suction pressure) of 10MPa is sent in the heating controller 17 that supercharging tail gas is set at through pressure limiting pressure.In alternative, can set the cracking pressure of pressure-limit valve and the closing pressure of sequence valve according to actual needs.For example can be any pressure between the 7Ma to 20MPa.Preferably, be among 10MPa, 12MPa, the 15MPa any one.Thus; The high pressure air that is used for drive air power engine 31 after acting its quite a few be recovered to main gas holder 46 after through tail gas recycle and boost-up circuit supercharging purification; Or pass through heating controller branch road entering recirculation, thereby realized the utilization again of tail gas.In other words; For the main gas holder 46 of giving constant volume; The existence of tail gas recycle and boost-up circuit has increased the continuous working period of air-powered motor 31 greatly, has increased the continuous working period of Pneumatic vehicle greatly, thereby puies forward the performance of Pneumatic vehicle significantly.
Between decompression gas holder 5 and heating controller 17, also be provided with the secondary circuit of assistant heating regulator 17 heating safety.This secondary circuit comprises auxiliary piping 26, safety valve 43, knock out drum 44, air supplying pump 42.Heating controller 17 is provided with the pressure transducer 49 of detected pressures and the temperature transducer 18 of detected temperatures.The heating tank internal pressure signal 39 that temperature signal 34 that temperature transducer 18 is detected and pressure transducer 29 detect is sent into control gear 35.Control gear 35 is according to the electric heater in the temperature signal 34 control heating controllers 17; But the temperature in the heating controller 17 surpass when for example being 400 ℃ temperature threshold; Control gear 35 breaks off the power supply that battery unit 3 is given heating controller 17, thereby the temperature of restriction heating controller 17 compressed airs further improves.When the pressure that detects when pressure transducer 49 surpasses the pressure threshold when for example being 15MPa; Safety valve 43 is opened; Unnecessary high-pressure air gets into temporary transient preservation the in the knock out drum 44; But during the underpressure in the decompression gas holder 5, the pressurized air in the knock out drum 44 gets into the decompression gas holder through air supplying pump 42.
As shown in Figure 1, the Pneumatic vehicle of the utility model also comprises additional air inlet loop.Should replenish the air inlet loop comprises battery unit 3, gate-controlled switch 4, direct current generator 6, replenishes inlet air compressor 52 and be connected in the pipeline between main gas holder 46 and the additional inlet air compressor 52.When the pressure signal 2 of main gas holder 46 is lower than predetermined threshold or according to driver's selection operation; Control gear 35 sends instruction connects gate-controlled switch 4; Direct current generator 6 startings; Drive inlet air compressor 52 work that replenish, ambient air is sent into main gas holder 46 after replenishing inlet air compressor 52 compression superchargings, thereby can for vehicle high pressure air be provided on one's own initiative.
The control of air-powered motor is carried out according to the operating mode of Pneumatic vehicle and driver's operation by control gear 35.As depicted in figs. 1 and 2; Control gear has a plurality of inputs, for example accelerator pedal position signal 38, engine rotational speed signal 36, key operation signal 37, vehicle speed signal, main gas holder pressure signal 2, heating tank internal pressure signal 39, a decompression jar internal pressure signal 41, temperature signal 34, the brake signal measured by the temperature transducer 18 that is installed on the heating controller 17 and for example be other inputs of atmospheric temperature, suction pressure.A plurality of input signal input control devices 35 are after control gear 35 sends the control command 33 of control flow rate control valve 25 after handling, thus the switching of control flow rate control valve 25.
The concrete structure of control gear 35 is as shown in Figure 2.Control gear 35 comprise data receive processing unit 35-7, operating mode determination module 35-1, main control unit 35-4, from control unit 35-2, power amplification circuit 35-6 and MAP data storage 35-8.Main control unit 35-4 and constitute air flow control module 35-0 from control unit 35-2.Control gear also comprises the heating control module 35-3 of control heating controller 17 operations, replenishes the compressor control module 35-5 of inlet air compressor 52 through gate-controlled switch 4 controls.Preferably, control gear 35 also comprises abnormal handling module 35-9, starts the action of overspeed protection module 35-10 or shutdown module 35-11 with the operating mode according to vehicle.To describe the working procedure of control gear 35 below in detail.
Data receive processing unit 35-7 and receive accelerator pedal position signal 38, engine rotational speed signal 36, key operation signal 37, vehicle speed signal, gas tank air pressure signal (2; 39; 41), temperature signal 34 and other input signals; These signals are sent to operating mode determination module 35-1 after data receive processing unit 35-7 analysis and handle.Operating mode determination module 35-1 receives the operating mode of the input judgement vehicle of processing unit 35-7 according to data.In the exemplary embodiment of the utility model, with the operating mode of the air-powered motor 31 of control gear 35 control be divided into state of starting operating, idling operation, steady state operating condition, acceleration operating conditions, operating mode runs slowly.Control gear 35 is taked different air inlet strategies according to different working conditions.
State of starting operating, when key operation signal 37 is launched, engine rotational speed signal 36 thinks that promptly air-powered motor 31 is in state of starting operating during less than the idling speed threshold signal.The pressurized air of vacuum pump 13 unlatchings at this moment,, certain pressure gets into decompression gas holder 5 from main gas holder 46.For the ease of the starting of air-powered motor 31, adopt to look into and get having little significance of MAP figure, at this moment; Adopt fixing jet correct time and jet amount (to begin air inlet during top dead center; And adopt maximum jet amount, so that starting), the rotating speed of motor is adjusted to idling; Maintain on the idling with jet correct time of idling and jet amount rotating speed then, to wait for next step operation air-powered motor 31.Can set the different idling threshold value of adjustment according to different air-powered motor 31.Because air-powered motor is generally wool(l)y-type engine, the idling threshold value can be set at 300 rev/mins or 500 rev/mins.
Idling operation when throttle position is 0%, when engine speed is higher than the idling threshold value, is defined as idling operation.The size of idling speed is decided according to looking into the practical operation situation of getting the MAP data under this operating mode.
Steady state operating condition, promptly motor operates in accelerator pedal position and immobilizes or change under the less condition with load, and it is constant that the rotating speed of motor can keep.In order to simplify the control of motor, can accelerator pedal position be changed being no more than 10% situation and being defined as steady state operating condition.Externally store the MAP figure of steady-state operation among the MAP data storage 35-8,, directly search and call corresponding jet amount and jet correct time according to engine speed and accelerator pedal position.
Quicken operating conditions; Accelerator pedal position amplification surpasses 10% and regards as the acceleration operating conditions; In order to keep traveling comfort; The method that adopts is between last accelerator pedal position that once collects and current throttle pedal position, to get an intermediate value and present engine rotating speed to constitute one together jointly and quicken operating conditions, in stable operation MAP figure, searches pairing jet correct time and jet amount then.
Operating mode runs slowly; The accelerator pedal position amount of decrease surpasses 10% and regards as the acceleration operating conditions; In order to keep traveling comfort; The method that adopts is between last accelerator pedal position that once collects and current throttle pedal position, to get an intermediate value and the present engine rotating speed constitutes the operating mode that runs slowly together jointly, in stable operation MAP figure, searches pairing jet correct time and jet amount then.Surpass 40% abrupt deceleration situation for the accelerator pedal position amount of decrease, when perhaps brake petal was operated brake signal and is activated, the strategy of taking was to stop air inlet, quickens operating conditions until breaking away from, and goes to handle according to corresponding operating mode again.
Main control unit 35-4 and constitute the air flow control module from control unit 35-2.Main control unit 35-4 reads MAP data through serial ports from outside MAP data storage 35-8 according to the operating mode judgement that operating mode determination module 35-1 provides, and from the MAP data, draws needed jet correct time and jet amount.Main control unit 35-4 will send to from control unit 35-2 through serial port from jet correct time and the jet amount that MAP data storage 35-8 obtains; From control unit 35-2 utilization for example be the input parameter of engine speed and camshaft location through the conversion output drive signal, drive signal zooms into the electrical signal of driving flow control valve 25 unlatchings through power amplification circuit.In the exemplary embodiment, the electrical signal of driving flow control valve 25 is endurance electrical signal that valve is opened.
Compressor control module 35-5 is used for controlling additional air inlet loop according to the pressurized air state in the main gas holder 46.When the hypotony of main gas holder 46; The gas storage pressure signal 2 that promptly reflects main gas holder 46 compressed air capacity is crossed when hanging down (when for example pressure is lower than 5MPa); When compressor control module 35-5 receives this signal from data reception processing unit 35-7, can connect gate-controlled switch 4, battery unit 3 is to direct current generator 6 power supplies; Direct current generator 6 drives and replenishes inlet air compressor 52 work, realizes the active air feed to main gas holder 46.
With reference now to Fig. 3,, Fig. 3 has described the internal structure according to the heating controller 17 of the utility model.Heating controller 17 comprises cooling water tank 1709, circulating water pump 1701, first heating tank (left side heating tank as shown in the figure is first heating tank), second heating tank, connect breather line 5 between first heating tank and second heating tank, to first water spout 1704 of first heating tank water spray, to second water spout 1704 of second heating tank water spray, and be connected the one-way valve 1702 between water spout 1704 and the circulating water pump 1701.First heating tank has identical structure with second heating tank, and heating tank is a duplex shell structure, and most external is a cooling chamber shell 1720, and the centre is a cooling chamber inner casing 1722, and the inside is a heating core outer wall 1724.Annular space between cooling chamber shell 1720 and the cooling chamber inner casing 1722 is a cooling chamber 1710; Water in the cooling water tank 1709 gets into cooling chamber 1710 after circulating water pump 1701 pumpings; So that heating tank is cooled off, too high and pipeline or the electric equipment around the influence of the outside wall temperature that prevents heating tank.Water heat exchange in the cooling chamber 1710 is after cooler bin water pipe 1728 is back to cooling water tank 1709.
Be furnished with spiral heating pipe 1711 between heating core 1726 and the cooling chamber inner casing 1722.Why set heating pipe for multi-circle spiral flow shape, be convenient to carry out sufficient heat exchange with heating core 1726, to reach the compressed-air actuated purpose of rapid raising through the pressurized air of heating pipe 1711.Heating pipe 1711 on first heating tank is connected with gas holder pipeline 14 through admission line 1703, to receive post-decompression pressurized air from decompression gas holder 5.The inside of heating core 1726 has hollow heating chamber 1712, and pressurized air gets into heating chamber 1712 and further heats behind heating pipe 1711.In the utility model, heating core 1726 is a kind of electric heater.The heated air of coming out from the heating chamber 1712 of first heating tank gets into the heating pipe 1711 of second heating tank through breather line 5, gets into the heating chamber 1712 of second heating tank thereafter again.Be sent to flow control valve 25 through the pressurized air after twice heating tank heating through filtering exsiccator 23, further to be sent to air-powered motor 31.The top of the heating core 1726 of second heating tank also is provided with pressure-limit valve 1708; After the pressurized air in the heating core 1726 surpasses the authorized pressure of pressure-limit valve; Pressure-limit valve 1708 is opened, and a part of pressurized air gets in the knock out drum 44 and preserves, and is connected to air supplying pump 42 through outlet pipe 1706.
First heating tank is provided with the first temperature transducer K1 and the first pressure transducer P1; Second heating tank is provided with the second temperature transducer K2 and the second pressure transducer P2; Temperature transducer K1, K2 and pressure transducer P1, P2 send the compressed-air actuated temperature and pressure in the detected heating tank to control gear 35; The heating control module 35-3 of control gear 35 is (as shown in Figure 2 according to temperature signal that receives or pressure signal control gate-controlled switch 1707; With mark 38 expressions, representing with mark 49 in Fig. 1 by first, second pressure transducer here in Fig. 1 for first, second temperature transducer here).The temperature signal value that is detected as the first temperature transducer K1 is during greater than the temperature threshold (for example being 400 ℃) set; Heating control module 35-3 sends the instruction of disconnection simultaneously to first gate-controlled switch 1713 and second gate-controlled switch 1714; Battery unit 3 no longer gives heating controller 17 power supplies, stops the heating to heating tank.The temperature signal value that is detected as the first temperature transducer K1 is during less than the temperature threshold (for example being 400 ℃) set; First gate-controlled switch 1713 is connected; Second gate-controlled switch 1714 is connected, from first heating tank, the heating of second heating tank through heating controller 17 of the pressurized air of decompression gas holder 5.The temperature signal value that is detected as the second temperature transducer K2 is during greater than the temperature threshold (for example being 400 ℃) set; Heating control module 35-3 sends the instruction of disconnection to second gate-controlled switch 1714; Battery unit 3 is no longer given second heating tank power supply of heating controller 17, the compressed-air actuated temperature in second heating tank less than temperature threshold till.
In alternative, also can control the heating of heating controller 17 according to the pressure signal of pressure transducer P1, P2.Such as; Pressure threshold is set at 15MPa; The pressure signal value that is detected as the first pressure transducer P1 is during greater than the pressure threshold (for example being 15MPa) set; Heating control module 35-3 sends the instruction of disconnection simultaneously to first gate-controlled switch 1713 and second gate-controlled switch 1714, and battery unit 3 no longer gives heating controller 17 power supplies, stops the heating to heating tank.The pressure signal value that is detected as the first pressure transducer P1 is during less than the pressure threshold set; First gate-controlled switch 1713 is connected; Second gate-controlled switch 1714 is connected, from first heating tank, the heating of second heating tank through heating controller 17 of the pressurized air of decompression gas holder 5.The pressure signal value that is detected as the second pressure transducer P2 is during greater than the pressure threshold set; Heating control module 35-3 sends the instruction of disconnection to second gate-controlled switch 1714; Battery unit 3 is no longer given second heating tank power supply of heating controller 17, the compressed-air actuated pressure in second heating tank less than pressure threshold till.
Consult Fig. 4 and Fig. 5 now, Fig. 4 is the three-dimensional oblique view after air-powered motor and the control for air distribution assembling among Fig. 1; Fig. 5 laterally cuts open the sectional view of getting after multi-cylinder air-powered motor and the control for air distribution assembling of Fig. 4.As shown in Figure 4, control for air distribution 28 by about two air distribution unit 2800 constitute the top of two exhaust casings about each air distribution unit 2800 is installed in respectively.About two exhaust casings become V-type each other, v-angle can be 60 °, 90 °, 120 ° or other angles according to concrete application change.In configuration shown in Figure 4, about the angle of two exhaust casings be 90 °.Every exhaust casing has 3 cylinders.Each cylinder comprises cylinder body 3107, cylinder cap 3108, cylinder head cover 3102, and air distribution unit 2800 tilts to be installed on the cylinder head cover loam cake 3122 of cylinder head cover, and it keeps sealing reliably with cylinder head cover loam cake 3122.Air distribution unit 2800 is through admission cam shaft 2801, chain 3106 and chain connection gear 3105 mechanical connections, through chain connection gear 3105, chain 3106 rotation of bent axle 3135 is delivered to the air inlet that admission cam shaft is realized each cylinder.The bent axle 3135 of air-powered motor 31 is equipped with flywheel 3110, and oil sump 3108 is used for storing the lubricant oil of motor 31 lubricated usefulness.
Further with reference to figure 5, piston 3132 is connected with connecting rod 3133 through wrist pin 3138, and is connected on the bent axle 3135 through connecting rod 3133.The rotation of bent axle 3135 drives piston 3132 and in the cylinder sleeve 3131 of cylinder body 3107, moves reciprocatingly.About two exhaust casings be respectively equipped with separately exhaust cam shaft 3116 be used for control air dispensing controller 28 and regulate the admission cam shaft 2801 of pressurized air air inlets.Through the air expansion chamber (not shown) of pressurized air between air inlet trunnion 3101 entering pistons 3132 and cylinder cap 3103 of control for air distribution 28, the pressurized gas after the acting is discharged through outlet pipe 3114.
The exhaust gear of air-powered motor is described now in further detail.The exhaust gear of the utility model V-type 6 cylinder air-powered motors comprises exhaust cam shaft 3116, exhaust tappet 3119, rocking arm 3121, pitman arm shaft 3123, shoulder pole iron 3124, exhaust valve spring 3127, exhaust valve 3128.One end of exhaust tappet 3119 is with the contact of the exhaust cam on the exhaust cam shaft 3116, and the other end is connected on the rocking arm 3121 through rocking arm bolt 3120.Rocking arm can rotate around pitman arm shaft 3123, and rocking arm 3121 contacts with shoulder pole iron 3124 through its protruding (not shown) of rocking arm with rocking arm bolt 3120 opposition one end place.Two ends of shoulder pole iron 3124 contact with two exhaust valves 3129 respectively, and under the effect of exhaust valve spring 3127, drive the unlatching of exhaust valve 3128.Between exhaust valve 3128 and cylinder cap 3103, also be provided with the exhaust valve lining 3129 of directing exhaust gas door 3128 motions.Exhaust valve spring 3127 is resisted against on the exhaust valve spring seat 3126, and when exhaust valve 3128 cut out, it was resisted against on the exhaust valve cover for seat 3131.
With reference now to Fig. 6-Fig. 8,, wherein, Fig. 6 is the three-dimensional oblique view of the control for air distribution among Fig. 1; Fig. 7 is the longitudinal cross-section view of the control for air distribution of Fig. 6; Fig. 8 is the side cross-sectional view of the control for air distribution of Fig. 6.As shown in the figure; Two air distribution unit 2800 that become to fall " V " shape about control dispensing controller 28 comprises; Each air distribution unit comprises that 2800 comprise an admission cam shaft 2801, intake cam shaft housing 2802, three 2830, one high-pressure common rail constant voltages of air distribution module pipes 2826.Air distribution module 2830 comprises seat 2816 in controller loam cake 2803, the controller seat of honour 2804, following 2825 of controller, the controller.In each controller the seat 2816 from top to bottom (orientation as shown in Figure 7) have valve spring hole 2832, valve oil sealing of hole 2833, air inlet trunnion communicated cavity 2834.Establish controller valve 2809, controller valve spring 2808, valve column sleeve 2810, valve oil seal 2811, controller valve cover for seat 2817, controller cotter seat 2806 in the seat 2816 in the controller.The controller valve 2809 controller valve cover for seat 2817 through separately respectively is supported on the valve seat trepanning (unmarked).Between valve oil seal 2811 and controller valve cover for seat 2817, there is air inlet trunnion communicated cavity 2834; The side of this communicated cavity 2834 is provided with inlet hole; To communicate with air inlet trunnion 3101; With when controller valve 2809 is opened, will send into the expansion exhaust chamber from the pressurized air of high-pressure common rail constant voltage pipe 2826, thereby drive engine operation.
In the exemplary embodiment; The aperture of valve spring hole 2832, valve oil sealing of hole 2833, air inlet trunnion communicated cavity 2834 has nothing in common with each other; The diameter in valve spring hole 28321 is greater than the diameter of valve oil sealing of hole 2833; And less than the diameter of air inlet trunnion communicated cavity 2834, the diameter of air inlet trunnion communicated cavity 2834 is less than the diameter of valve seat trepanning.Controller valve cover for seat 2817 is installed in the controller valve seat trepanning, and is supported on the air inlet trunnion communicated cavity 2834.Valve oil seal 2811 is installed in the valve oil sealing of hole 2833, and is supported on the controller valve spring 2808, passes through the valve stem of controller valve 2809 in it.This valve oil seal 2811 also play the guiding role to valve stem except controller valve 2809 is sealed.Controller valve spring 2808 is installed in the valve spring hole 2832, and its upper end is supported with controller cotter seat 2806, and is fastened on the controller valve spring cover for seat 2806 through controller valve collet sheet 2807.When motor is not worked, the pretensioning that 2808 preloads of controller valve spring are certain, it is resisted against controller valve 2809 on the controller valve cover for seat 2817, and controller valve 2809 is closed, and then the entering of control gaseous.
High-pressure common rail constant voltage pipe 2826 has cylindrical outer shape, and it also can be profiles such as rectangle, triangle.High-pressure common rail constant voltage pipe 2826 is inner for for example being columniform cavity; To accept high pressure admission from flow control valve 25; And keep the compressed air pressure in the cavity balanced substantially; So that make the interior high-pressure air of expansion exhaust chamber of initial each cylinder of entering have identical pressure, thereby make engine mildness.The two ends of high-pressure common rail constant voltage pipe 2826 fixedly are equipped with air inlet rear end cover 2824; Has outward extending flange at its air inlet rear end cover 2824 that is connected with flow control valve 25; This flange extend in the pipeline 2821 between flow control valve 25 and the high-pressure common rail constant voltage pipe 2826, and through for example being that the Placement of screw thread removably is fixedly connected with pressure duct.The air inlet rear end cover 2824 of high-pressure common rail constant voltage pipe 2826 is connected with high-pressure common rail constant voltage pipe 2826 through end cap connecting bolt 2823.High-pressure common rail constant voltage pipe 2826 is provided with the following attachment hole (unmarked) corresponding to single number of cylinders, is provided with valve motion chamber 2835 in following 2825 of the controller, and it is through following attachment hole fixing seal ground connection high-pressure common rail constant voltage pipe 2826.Following 2825 of controller through following with middle seat connecting bolt 2818 or other fastening pieces and controller in 2816 formation seal, detachably be fixedly connected.Seat 2140 forms detachable be fixedly connected that seal with seat of honour connecting bolt 2815 or other fastening pieces with the controller seat of honour 2804 through middle seat in the controller.
Further consult Fig. 7, intake cam shaft housing 2802 is fixedly mounted between the controller seat of honour 2804 and the controller loam cake 2803, and its inside is provided with admission cam shaft 2801.The inside at the controller seat of honour 2804 is provided with a plurality of tappet mounting holes 2831 that are used to install tappet 2805, and tappet 2805 pumps with the rotation of admission cam shaft 2801.When needs provide high pressure air to cylinder; The downward jack-up tappet 2805 of the cam of admission cam shaft 2801; Tappet 2805 jack-up controller valve 2809 controller valves 2809 then overcomes the pulling force of controller valve spring 2808, leave controller valve cover for seat 2817, thereby controller valve 2809 is opened; High pressure air is able to get into the expansion exhaust chamber from high-pressure common rail constant voltage pipe 2826, to satisfy the air feed demand of motor.After admission cam shaft 2801 turned over several angle with bent axle 3135, controller valve 2809 had been seated on the controller valve cover for seat 2817 under the restoring force effect of controller valve spring 2808 again, and controller valve 2809 is closed, and air feed finishes.Because the compressed air engine of the utility model is a two stroke engine; Bent axle 3135 revolutions move a week; Each opens and closes controller valve 2809 and outlet valve once; Therefore, be easy to be provided with cam phase and they of admission cam shaft 2801 and exhaust cam shaft 3116 and the annexation of bent axle 3135.
Although at length disclose the utility model with reference to accompanying drawing, it should be understood that these descriptions only are exemplary, be not the application that is used for limiting the utility model.The protection domain of the utility model is limited accessory claim, and can be included in various modification, remodeling and the equivalents of doing to the utility model under the situation that does not break away from the utility model protection domain and spirit.
Claims (15)
1. control for air distribution that is used for Pneumatic automobile, said Pneumatic automobile comprises:
Air-powered motor, it comprises: about two exhaust casings, piston, connecting rod, air inlet trunnion, exhaust gear, bent axle, flywheel, oil sump, and every exhaust casing has three cylinders;
Main gas holder, the decompression gas holder in itself and downstream is connected, so that required high pressure air is provided for air-powered motor;
Heating controller, it is connected with the decompression gas holder, so that the pressurized air that gets into is wherein carried out supercharging and intensification;
Flow control valve, it is connected with heating controller through Filter dryer, to receive the pressurized air after heating up from heating controller;
Secondary circuit, it is connected between heating controller and the decompression gas holder, to send the pressurized air of Overpressure of a safety valve threshold value in the heating controller back to the decompression gas holder;
Control gear, it is according to the operating mode control flow rate control valve of air-powered motor;
Said control for air distribution comprises two air distribution unit, through the pressurized air of said control gear control through after the said air distribution unit again through said air inlet trunnion send into respectively said about two exhaust casings; It is characterized in that:
Said air distribution unit comprises an admission cam shaft, an intake cam shaft housing, three air distribution module and a high-pressure common rail constant voltage pipe.
2. control for air distribution according to claim 1; It is characterized in that; Said air distribution module comprises seat in controller loam cake, the controller seat of honour, following of controller, the controller, and said intake cam shaft housing is connected between the said controller loam cake and the said controller seat of honour.
3. control for air distribution according to claim 2 is characterized in that, seat has valve spring hole, valve oil sealing of hole and air inlet trunnion communicated cavity from top to bottom in the said controller.
4. according to claim 2 or 3 described control for air distributions; It is characterized in that; Establish controller valve, controller valve spring, valve column sleeve, valve oil seal, controller valve cover for seat, controller cotter seat in the seat in the said controller, the said controller valve controller valve cover for seat through separately respectively is supported on the valve seat trepanning.
5. control for air distribution according to claim 4 is characterized in that, between said valve oil seal and said controller valve cover for seat, has said air inlet trunnion communicated cavity, and the side of this communicated cavity is provided with inlet hole, to communicate with said air inlet trunnion.
6. control for air distribution according to claim 1 is characterized in that, said Pneumatic automobile further comprises additional air inlet loop.
7. control for air distribution according to claim 1 is characterized in that said Pneumatic automobile further comprises tail gas recycle and boost-up circuit.
8. according to each described control for air distribution among claim 1-3, the 5-7; It is characterized in that; Said secondary circuit comprises auxiliary piping, safety valve, knock out drum and air supplying pump; When the pressure Overpressure of a safety valve threshold value that pressure transducer detected in the heating controller, safety valve is opened, and unnecessary high-pressure air gets in the knock out drum from heating controller and temporarily preserves.
9. control for air distribution according to claim 7 is characterized in that, said tail gas recycle and boost-up circuit comprise silencing apparatus, device for recovering tail gas, filter, tail gas booster compressor, one-way valve, main gas holder branch road and heating controller branch road.
10. control for air distribution according to claim 6; It is characterized in that, said additional air inlet loop comprise battery unit, gate-controlled switch, direct current generator, replenish inlet air compressor and be connected in main gas holder and additional inlet air compressor between pipeline.
11. according to each described control for air distribution among claim 1-3, the 5-7; It is characterized in that said control gear comprises that data receive processing unit, operating mode determination module, air flow control module, power amplification circuit and MAP data storage.
12., it is characterized in that said heating controller comprises cooling water tank, circulating water pump, heating tank, water spout according to each described control for air distribution among claim 1-3, the 5-7.
13. control for air distribution according to claim 4; It is characterized in that; The aperture of said valve spring hole, valve oil sealing of hole, air inlet trunnion communicated cavity has nothing in common with each other; The diameter in valve spring hole is greater than the diameter of valve oil sealing of hole, and less than the diameter of air inlet trunnion communicated cavity, the diameter of air inlet trunnion communicated cavity is less than the diameter of valve seat trepanning; Said controller valve cover for seat is installed in the controller valve seat trepanning, and is supported on the air inlet trunnion communicated cavity; Said valve oil seal is installed in the valve oil sealing of hole, and is supported on the controller valve spring, passes through the valve stem of controller valve in it.
14. control for air distribution according to claim 13; It is characterized in that; The two ends of said high-pressure common rail constant voltage pipe fixedly are equipped with the air inlet rear end cover; Have outward extending flange at its air inlet rear end cover that is connected with flow control valve, this flange extend in the pipeline between flow control valve and the high-pressure common rail constant voltage pipe, and removably is fixedly connected with pressure duct through being threaded.
15. according to claim 13 or 14 described control for air distributions; It is characterized in that; The inside at the said controller seat of honour is provided with a plurality of tappet mounting holes that are used to install tappet; Tappet is jack-up controller valve with the rotation of admission cam shaft, and high pressure air gets into the expansion exhaust chamber from high-pressure common rail constant voltage pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237200 CN202628191U (en) | 2012-05-25 | 2012-05-25 | Air distribution controller for pneumatic automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220237200 CN202628191U (en) | 2012-05-25 | 2012-05-25 | Air distribution controller for pneumatic automobile |
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| Publication Number | Publication Date |
|---|---|
| CN202628191U true CN202628191U (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220237200 Expired - Lifetime CN202628191U (en) | 2012-05-25 | 2012-05-25 | Air distribution controller for pneumatic automobile |
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| CN (1) | CN202628191U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206254A (en) * | 2013-01-25 | 2013-07-17 | 祥天控股（集团）有限公司 | Static sheets for variable multi-cylinder aerodynamic engine |
| CN103422892A (en) * | 2012-05-25 | 2013-12-04 | 周登荣 | Air distribution controller used for pneumatic automobile |
| CN104074549A (en) * | 2013-03-25 | 2014-10-01 | 袁锋 | Electric piston type engine |
| CN109555893A (en) * | 2018-12-18 | 2019-04-02 | 苏州科迪流体控制设备有限公司 | A kind of adjustable Discrete control pneumatic stopping valve |
-
2012
- 2012-05-25 CN CN 201220237200 patent/CN202628191U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422892A (en) * | 2012-05-25 | 2013-12-04 | 周登荣 | Air distribution controller used for pneumatic automobile |
| CN103422892B (en) * | 2012-05-25 | 2016-03-30 | 周登荣 | For the control for air distribution of Pneumatic automobile |
| CN103206254A (en) * | 2013-01-25 | 2013-07-17 | 祥天控股（集团）有限公司 | Static sheets for variable multi-cylinder aerodynamic engine |
| CN104074549A (en) * | 2013-03-25 | 2014-10-01 | 袁锋 | Electric piston type engine |
| CN109555893A (en) * | 2018-12-18 | 2019-04-02 | 苏州科迪流体控制设备有限公司 | A kind of adjustable Discrete control pneumatic stopping valve |
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