CN201635863U - Low-entropy co-firing engine - Google Patents
Low-entropy co-firing engine Download PDFInfo
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- CN201635863U CN201635863U CN2010201243347U CN201020124334U CN201635863U CN 201635863 U CN201635863 U CN 201635863U CN 2010201243347 U CN2010201243347 U CN 2010201243347U CN 201020124334 U CN201020124334 U CN 201020124334U CN 201635863 U CN201635863 U CN 201635863U
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Abstract
The utility model discloses a low-entropy co-firing engine comprising an air cylinder, an air cylinder cover, a piston, a working medium storage box, an exhaust passage and a combustion chamber. The inside or outside of the side wall and/or the cover of the air cylinder is provided with a high pressure fluid passage, the bearing capacity of which is more than 1MPa. The low-entropy co-firing engine also comprises an exhaust heat exchanger and the exhaust passage is communicated with a heating fluid inlet of the exhaust heat exchanger. The outlet of the high pressure fluid passage is communicated with a steam ejector through a jet control valve, the steam ejector is communicated with the combustion chamber and the jet control valve is set as a timed control valve. Or, the outlet of the high pressure fluid passage is communicated with the working medium inlet of a heat engine through a flow control valve and the high-temperature high-pressure fluid working medium generated in the high pressure fluid passage pushes the heat engine to do work. The co-firing engine saves energy and is environment-friendly due to efficient utilization of the excess heat of the engine and improvement of conversion efficiency of heat into power of the engine.
Description
Technical field
The utility model relates to engine art, especially a kind of motor of low-entropy mixed-fuel.
Technical background
As everyone knows, the heat that conventional engines is discharged by cooling system and releasing system accounts for 2/3rds of motor fuel energy, and engine-cooling system and releasing system respectively account for half approximately, that is to say that the heat of engine-cooling system discharging accounts for 1/3rd of fuel energy.For a long time, the utilization to engine exhaust heat is the focus that improves engine efficiency always.But, because the structural feature of conventional engines, in its cooling system especially the bearing capacity of the coolant guiding channel in the parts such as cylinder liner, cylinder head be generally less than 0.3MPa, under this bearing capacity, cooling water in the coolant guiding channel is difficult to be converted into the steam of High Temperature High Pressure, more can't reach critical, overcritical, ultra supercritical state.Engine-cooling system obtainable waste heat all are the quite low heats of grade, be difficult to effectively be utilized, this is restriction engine exhaust heat utilization, just restricts the greatest problem that engine efficiency improves.
International Patent Publication No. W is: the patent of WO 99/37904, though be provided with boiler from cylinder, cooling system and extraction heat generation steam from the waste gas of motor, but it only is a thermal source of the cooling liquid of motor etc. being used as boiler, be the cooling liquid of motor and the water that produces steam with duplexing matter.The employing of duplex matter can produce temperature difference loss, and influence is to the efficient of heat recovery, and complex structure.
My application number of application is the patent of invention of 200710117829.X, though solved the problem of the effective recycling of above-mentioned cooling system waste heat to a certain extent, but because the restriction of available engine structure, outer wall of combustion chamber requires the intensity of cooling big, coolant temperature is low, cause the grade of heat low, what obtain from the cooling system recovery waste heat still is the not high heat of hot quality, and the amount that can be exchanged into high-quality mechanical work also is very limited.
Comprehensive analysis, we can draw two conclusions: the first, if can solve the utilization of engine exhaust heat well, the efficient of motor just can significantly improve; The second, if want to effectively utilize the waste heat of motor, just must solve to produce waste heat how less, how to produce the problem of high-grade waste heat.And from the history of motor, the mankind have done two things so far.Now, in order to understand conveniently, we do a metaphor with boiler, carry out the image explanation.First thing that the mankind do be water vapour in allowing boiler tubing as work done working medium, promote the external work done of corresponding mechanism, external-combustion engine just, a large amount of not works done of products of combustion in this system and throwing away in vain are so efficient is not high; Second thing that the mankind do be water in allowing boiler not as working medium but as cooling medium cooling boiler inner wall to reach the requirement of keeping its intensity and corresponding function (as sealing, lubricated), and allow products of combustion in the burner hearth as work done working medium, promote the external work done of corresponding mechanism, internal-combustion engine just, cooling medium in this system has been taken away a large amount of heats, so efficient is not high yet.Particularly because parts such as internal combustion engine cylinder jacket, piston for sealing and lubricated having relatively high expectations, are equivalent to make the boiler intensity of cooling is required than higher that promptly the temperature of cooling medium is lower, so can only obtain low-grade waste heat.We are not difficult to find out, no matter be external-combustion engine or internal-combustion engine, utilize thermal transition all to have very big defective for the process of merit, that is to say, if we can allow in the work done of boiler burning Indoor Combustion product, also can allow boiler keep original function, promptly the water in the boiler so just will increase substantially the efficient of motor as externally work done efficiently of working medium.
Allowing in the work done of boiler burning Indoor Combustion product, also allow interior cooling medium (the being ducted working medium) work done efficiently of boiler realize in two ways: the firstth, the work done respectively of firing chamber internal combustion product and cooling medium, the secondth, firing chamber internal combustion product and cooling medium are mixed the common work done in back.No matter adopting which kind of mode, all can be described as the combustion process of mixing, just promptly is not that external-combustion engine neither internal-combustion engine, but has merged the mixing combustion engine of the advantage of two kinds of work done machines.Though similar trial is arranged in the past about so-called mixing combustion engine, as international monopoly WO 99/37904, but real significant do not have, the temperature that just is aforesaid outer wall of combustion chamber cooling medium of tracing it to its cause is low, and heat grade is too low, in other words, exactly owing to the structure of existing internal-combustion engine is limit, outer wall of combustion chamber requires the intensity of cooling big, and coolant temperature is low, causes the grade of heat low.
Though being the patent of invention of 200810135005.X, the application number that I apply for improves to some extent; First, be confined to the structure of available engine at that time, think that the temperature of cooling water in the cooling system is significantly less than the temperature of exhaust, therefore the working medium (being the cooling medium of internal-combustion engine) of external-combustion engine is further absorbed heat through flowing into exhaust heat exchanger again after the heat absorption of the working medium pressure-bearing passage on cylinder liner and cylinder head intensification even the vaporization earlier, but this flow direction arrangement of the working medium of external-combustion engine (being the cooling medium of internal-combustion engine) it seems it is poor efficiency and irrational now; Because cylinder, the improvement of position structure and materials such as piston, especially because the use of floated piston, working medium (being the cooling medium of internal-combustion engine) flow at the control external-combustion engine improves under the prerequisite of its hot quality, the working medium of external-combustion engine (being the cooling medium of internal-combustion engine) temperature can near in addition surpass the temperature of exhaust before entering atmosphere of internal-combustion engine, the temperature of the working medium of external-combustion engine itself is very high at this moment, then its heat that absorbs after via exhaust heat exchanger seldom, even do not absorb heat, cause the temperature height of exhaust before entering atmosphere of internal-combustion engine, energy utilization rate is low; If can allow the working medium (being the cooling medium of internal-combustion engine) of external-combustion engine of lower temperature earlier absorb heat of exhaust through exhaust heat exchanger, then can be so that the temperature of I. C. engine exhaust before entering atmosphere greatly reduces, thereby improve the recovery utilization rate of the energy, the working medium pressure-bearing passage that the working medium of the external-combustion engine after heat absorption heats up in exhaust heat exchanger flows on cylinder liner and the cylinder head more further absorbs heat, thereby avoid low-qualityization in the waste heat production process as far as possible, efficient high-quality recovery waste heat, the recovery utilization rate of the raising energy; Second, (between last lower dead center, need slipper seal lubricated owing to be confined to the conventional construction of available engine with cylinder liner as piston, make that the temperature of cylinder liner can not be too high, necessary high strength cooling), in order to reach the requirement of cylinder liner cooling, the working medium of external-combustion engine (being the cooling medium of internal-combustion engine) must big flow but low-quality (low-temp low-pressure), and the heat energy of the working medium of external-combustion engine is converted into mechanical work difficulty very, is difficult to effective recycling; The 3rd, owing to be confined to conventional material and structure in the available engine manufacturing, though the working medium pressure-bearing passage has certain anti-pressure ability not high (only having about three barometric pressure), though allow working medium to gasify therein, but pressure still can not be too high, so also make the working medium low-heat quality (low-temp low-pressure) of external-combustion engine, the heat energy of the working medium of external-combustion engine be converted into mechanical work difficulty very, be difficult to effective recycling.
For this reason, need invention a kind of novel, the bearing capacity of the far super available engine cooling system of working medium pressure-bearing passage bearing capacity (being the bearing capacity about three barometric pressure in the patent of invention of 200810135005.X such as application number), even can reach the available engine cooling system the bearing capacity of bearing capacity more than three times (such as ten barometric pressure, can bear in some cases in it working medium near in addition pressure when surpassing threshold state), working medium flows to and to be more conducive to the hot quality that a large amount of recovery waste heats improve waste heats, and can be with the motor that should the hot quality waste heat of height in addition efficiently utilizes.
The model utility content
In order to address the above problem, the technological scheme that the utility model proposes is as follows:
A kind of low-entropy mixed-fuel engine, comprise cylinder, cylinder head, piston, working medium storage tank, air outlet flue and firing chamber, the inside or the outside of the inside of described cylinder sidewall or outside and/or described cylinder head are provided with high pressure fluid channel, the bearing capacity of described high pressure fluid channel is more than or equal to 1MPa, described low-entropy mixed-fuel engine also comprises exhaust heat exchanger, and described air outlet flue is communicated with the heated fluid import of described exhaust heat exchanger;
The outlet of described working medium storage tank is communicated with the fluid inlet that is heated of described exhaust heat exchanger through high-pressure service pump, and the fluid output that is heated of described exhaust heat exchanger is communicated with the import of described high pressure fluid channel; The outlet of perhaps described working medium storage tank is communicated with the fluid inlet that is heated of described exhaust heat exchanger through high pressure fluid pump, and the fluid output that is heated of described exhaust heat exchanger is communicated with the import of described high pressure fluid channel through high-pressure service pump;
The outlet of described high pressure fluid channel is communicated with vapor steam blaster through injection control valve, and described vapor steam blaster is communicated with described firing chamber, and described injection control valve is made as the timing control valve; Perhaps the outlet of described high pressure fluid channel is communicated with the working medium import of hot machine through flow control valve, and the high-temperature, high pressure fluid working medium that is produced in the described high pressure fluid channel promotes described hot machine work done.
The bearing capacity of described high pressure fluid channel is more than or equal to 2MPa.
The bearing capacity of described high pressure fluid channel is more than or equal to 3MPa
The bearing capacity of described high pressure fluid channel is more than or equal to 10MPa.
The bearing capacity of described high pressure fluid channel is more than or equal to 20MPa.
The import of described high pressure fluid channel is located at the position of described cylinder bottom away from described firing chamber, and the outlet of described high pressure fluid channel is located on the described cylinder head; Perhaps the import of described high pressure fluid channel is located at the position that needs local cooling on the described cylinder head, and the outlet of described high pressure fluid channel is located at the position of the bottom of described cylinder away from described firing chamber.
The cryogenic fluid inlet is established at key cooling position at motor, and described cryogenic fluid inlet is communicated with described high pressure fluid channel; Described cryogenic fluid inlet is communicated with the cryogenic fluid source through booster pump and cool stream control valve.
Established high-pressure working medium storage tank before described injection control valve, and/or establish condensate cooler at the back segment of described air outlet flue, the liquid outlet of described condensate cooler is communicated with described working medium storage tank.
Sender property outlet place at described hot machine establishes closed condensate cooler, and the liquid outlet of described closed condensate cooler is communicated with described working medium storage tank.
Before described flow control valve, establish described high-pressure working medium storage tank.
When described low-entropy mixed-fuel engine proper functioning, the working medium in the described high pressure fluid channel is threshold state or supercritical state or ultra supercritical state.
Described high pressure fluid channel is made as the phase transformation high pressure fluid channel.
Described piston is floated piston, described floated piston is all or part of to be arranged in the described cylinder, top dead center on the described cylinder corresponding with the piston top dead center of described floated piston and with the corresponding described cylinder of the piston lower dead center of described floated piston on lower dead center between whole stroke range in or in the partial journey scope described floated piston and described cylinder non-contact suspend and be provided with or accurate the suspension is provided with, in setting or the accurate zone that suspends beyond being provided with of suspending, described cylinder and described floated piston are provided with the slipper seal contact area.
Total flow control valve is established in outlet at described working medium storage tank.
The key cooling position of the so-called motor of the utility model is meant that oil sprayer, air inlet seat mouth and spark plug etc. need the higher position of intensity of cooling.Steam of the present utility model also comprises the gas that produces after cooling medium (working medium of the hot machine just) phase transformation except referring to former water vapour on meaningful.
The so-called cryogenic fluid of the utility model source is meant the relatively low position of temperature of the working medium (being the cooling medium of internal-combustion engine) of external-combustion engine in whole system, and for example working medium storage tank and exhaust heat exchanger are heated the working medium pipeline before the fluid input.
The utility model is so-called after establishing B before the A and being meant that A, B are provided with, and working medium is flowed through and flowed into A again after the B.After the back segment of so-called air outlet flue is meant that air outlet flue is through exhaust heat exchanger and other devices, the line segments of the air outlet flue before products of combustion enters atmosphere.
So-called hot machine comprises internal-combustion engine and external-combustion engine in the utility model.
So-called floated piston in the utility model is meant neither to come in contact and keep quite little gap between the cylinder and piston, thereby realizes the purpose that not only seals but also do not wear and tear relatively.The so-called accurate setting that suspends is meant and is in contact and non-contacting threshold state between piston and the cylinder, so just can further improve relative sealing, Wear again.Seeing me for details is 200910176960.2 patent of invention to the application number of China national Department of Intellectual Property application on September 25th, 2009.
So-called cooling medium in the utility model is meant that cooling water etc. plays the flowing medium of cooling action.
So-called supercritical state in the utility model is meant that the pressure and temperature of material reaches the state of one of its critical pressure and percentage of critical temperature 130 simultaneously; So-called ultra supercritical state is meant that the pressure and temperature of material surpasses the state of one of its critical pressure and percentage of critical temperature 130 simultaneously.
So-called phase transformation high pressure fluid channel is meant the passage that fluid undergoes phase transition in the utility model in passage, and this passage can sustain owing to the consequence that fluid phase change brought, as the variation of temperature and pressure.
So-called low-entropy mixed-fuel engine in the utility model is that the waste heat of mean engine is of high grade, and promptly motor increment of entropy in running is few, that is to say the low new work engine of degree of low-gradeization of the fuel energy of motor.
The process of high entropy, promptly entropy increases more process, means the process that the randomness increment is bigger, and the utility model utilizes this notion to come the big process of low-gradeization of pictute engine exhaust heat degree; On the contrary, the process of low entropy, promptly the little process of entropy increasing amount means the process that the randomness increment is less, the utility model utilizes this notion to come the little process of low-gradeization of pictute engine exhaust heat degree.
The utility model owing to needn't carry out piston lubrication, can be realized the thermal insulation circulation of motor if adopt floated piston in theory, needn't cool off the cylinder piston system, and this is the effective means of reduction system entropy.But adiabatic circulation must make the temperature of cylinder, piston etc. reach very high degree, and exotic material is more rare on the one hand, and also inevitable on the other hand expensive, this can improve the manufacture cost of motor.In order to address this problem, can carry out suitable cooling to the suspension type active piston engine, make the operating temperature of its cylinder, piston etc. be higher than general internal-combustion engine, but be lower than complete adiabatic circuit internal-combustion engine, thereby between the hot merit transformation efficiency of internal-combustion engine and manufacture cost, average out.Promptly the cooling medium in the cooling system is elevated to hundreds of degree by more than 100 degree of routine, even higher temperature, thus make the cooling medium gasification become high compressed steam, this high compressed steam is done work again.With the result of conventional engine cooling system cooling is that the cooling medium that obtains degree more than 100 is compared, the utility model has obtained the water vapour of High Temperature High Pressure, obviously improve the hot quality of system, reduced entropy, therefore can be referred to as the motor of low entropy in this sense.Medium in the utility model, working medium can be the working medium of water or other type, hang down latent heat working medium etc. as low boiling.
The discharge time of high compressed steam should be during this period of time all or part of time period before finishing to power stroke in the engine compresses stroke procedure.
Because high compressed steam has the pressure height, the temperature height, so general injection apparatus may be difficult to satisfy the requirement of timing inject high pressure steam in cylinder, can adopt the shell deformation injection apparatus (to see the patent of invention of the inventor " directly controlled shell body deformation fluid ejector for engine " by name for details, application number is 200910135873.2), make the valve seal interface not have sliding friction, thereby satisfy the harsh requirement that the high compressed steam timing is sprayed.
, can reclaim after the air outlet flue of motor is discharged to the high compressed steam of cylinder injection, also can not reclaim, both cut both ways.As reclaim, then need to set up the condensation cooling system, the structure relative complex, but can reduce water usage, promptly can reduce vehicle-mounted water retention capacity.As not reclaiming, directly emptying, simple in structure, but water usage is big.Can select suitable scheme according to the purposes and the concrete condition of motor.
For prevent winter the working medium storage tank and whole cooling system in cooling medium freeze, can adopt and shut down emptying or be provided with high-efficiency insulated container, when allowing engine shutdown, the cooling medium in the system enters high-efficiency insulated container and is incubated.Also can in system, add non-volatile electrolyte,, make and contain a certain amount of electrolyte in the liquid phase cools medium, prevent to freeze, and do not contain electrolyte in the steam, so can not influence parts and working condition in the cylinder as salt.
Cooling medium produces high compressed steam absorb heat in high pressure fluid channel after in the utility model, this high compressed steam continues heat absorption and forms the high pressure superheater steam in exhaust heat exchanger, or described cooling medium is earlier in exhaust heat exchanger heat temperature raising even phase transformation, enter again and absorb heat generation high compressed steam in the high pressure fluid channel, so not only can utilize the waste heat of engine exhaust, also can further heighten the hot quality of high compressed steam.
High Temperature High Pressure working medium can spray in the cylinder by injection line and associated components timing according to quantity, also can promote the external work done of hot machine separately, cooling medium for fear of liquid state is sprayed into cylinder, can establish gas-liquid separator, and high compressed steam pipeline and other associated components be incubated, reduce the condensation of high compressed steam.
In the utility model High Temperature High Pressure working medium is passed through the external work done of external heat machine, the advantage of this structure is working medium can be recycled, and reduces the use amount of working medium, and its deficiency is the hot machine of peripheral hardware, complex structure; And the scenario-frame of High Temperature High Pressure working medium direct cylinder injection is simple, its deficiency is that the consumption of working medium is big.Two kinds of schemes cut both ways, and can select suitable scheme according to the purposes and the concrete condition of motor.
For timing quantitatively sprays into high compressed steam in cylinder, the control mechanism in the utility model will have the timing function, and so-called timing function is meant that the parts that can make controlled mechanism controls spray into high compressed steam by motor vapour injection designing requirement in cylinder.For operating mode and burden requirement according to motor, vapour injection time, injection duration and emitted dose are dynamically adjusted, to reach better effect, control gear in the utility model and control mechanism can be made as control gear and the control mechanism with dynamic timing function.
High-pressure working medium storage tank of the present utility model can store a certain amount of High Temperature High Pressure working medium, improve the load responding degree of motor, promptly when big variation takes place in load, can export more working medium moment or store a certain amount of working medium, satisfy the requirement of motor instantaneous power output, be equivalent to the effect of storage battery of electric motor.
As described in background, we do a metaphor with boiler, carry out the image explanation.First thing that the mankind do be water vapour in allowing boiler tubing as work done working medium, promote the external work done of corresponding mechanism, external-combustion engine just, a large amount of not works done of products of combustion in this system and throwing away in vain are so efficient is not high; Second thing that the mankind do be water in allowing boiler not as working medium but as cooling medium cooling boiler inner wall to reach the requirement of keeping its intensity and corresponding function (as sealing, lubricated), and allow products of combustion in the burner hearth as work done working medium, promote the external work done of corresponding mechanism, internal-combustion engine just, cooling medium in this system has been taken away a large amount of heats, so efficient is not high yet.Particularly because parts such as internal combustion engine cylinder jacket, piston for sealing and lubricated requirement, make the intensity of cooling to the boiler cooling medium require than higher, so can only obtain low-grade waste heat.We are not difficult to find out, no matter be external-combustion engine or internal-combustion engine, utilize thermal transition all to have very big defective for the process of merit, that is to say, if we can allow in the work done of boiler burning Indoor Combustion product, also can allow boiler keep original function, promptly the water in the boiler so just will increase substantially the efficient of motor as externally work done efficiently of working medium.Allowing in the work done of boiler burning Indoor Combustion product, also allow interior cooling medium (the being ducted working medium) work done efficiently of boiler realize in two ways: the firstth, the work done respectively of firing chamber internal combustion product and cooling medium, the secondth, firing chamber internal combustion product and cooling medium are mixed the common work done in back.No matter adopting which kind of mode, all can be described as the combustion process of mixing, just promptly is not that external-combustion engine neither internal-combustion engine, but has merged the mixing combustion engine of the advantage of two kinds of work done machines.
In a mode of execution of the present utility model, from working medium (being the cooling medium of the internal-combustion engine) pipeline that is heated the external-combustion engine before the fluid inlet of exhaust heat exchanger, draw one the road and need the position of local cooling to cylinder head, its objective is in order to allow the working medium (being the cooling medium of internal-combustion engine) of external-combustion engine of low temperature need on the cooling air cylinder cap directly go to the position of local cooling without the heat temperature raising of exhaust heat exchanger, to improve its cooling effect.
The beneficial effects of the utility model are as follows:
1, because the utility model has effectively utilized the waste heat of motor, improved the hot merit conversion efficiency of motor,
So it is energy-conservation.
2, because steam sprays into cylinder, can reduce the firing chamber maximum temperature, but can form higher gas phase pressure, thereby can under the prerequisite of keeping the motor greater efficiency, reduce the discharge amount of harmful gas Nox etc. significantly, so environmental protection.
3, the utility model is that the utility model patent of 200810135005.X is compared with the application number of my application, its advantage shows: first, the working medium of external-combustion engine (being the cooling medium of internal-combustion engine) is before the working medium pressure-bearing passage on process cylinder liner and the cylinder head, absorb heat of exhaust through exhaust heat exchanger earlier, can be so that the temperature of I. C. engine exhaust greatly reduce, thus the recovery utilization rate of the energy improved; Second, owing to broken through the conventional construction (introducing of especially floated piston) of available engine, make the high temperature resistant degree of parts such as cylinder liner greatly improve, can carry out the high strength cooling again, thereby make that the working medium (being the cooling medium of internal-combustion engine) of external-combustion engine can small flow but high hot quality (High Temperature High Pressure), it is easier that the heat energy of the working medium of external-combustion engine is converted into mechanical work, can increase substantially the hot merit conversion efficiency; The 3rd, owing to used high-strength materials such as cast steel, the bearing capacity of working medium pressure-bearing passage has been done further qualification, make the working medium of external-combustion engine can reach high temperature and pressure, improved its hot quality, it is easier that feasible heat energy wherein is converted into mechanical work, can increase substantially the hot merit conversion efficiency.
Description of drawings
Shown in Figure 1 is the utility model embodiment 1 structural representation;
Shown in Figure 2 is the utility model embodiment 2 structural representation;
Shown in Figure 3 is the utility model embodiment 3 structural representation;
Shown in Figure 4 is the utility model embodiment 4 structural representation;
Shown in Figure 5 is the utility model embodiment 5 structural representation;
Shown in Figure 6 is the utility model embodiment 6 structural representation;
Shown in Figure 7 is the utility model embodiment 7 structural representation;
Shown in Figure 8 is the utility model embodiment 8 structural representation;
Embodiment
Low-entropy mixed-fuel engine as shown in Figure 1, comprise cylinder 1, cylinder head 2, piston 3, working medium storage tank 4, air outlet flue 5 and firing chamber 6, the inside of cylinder 1 sidewall and the inside of cylinder head 2 are provided with high pressure fluid channel 8, the bearing capacity of high pressure fluid channel 8 is more than or equal to 1MPa, low-entropy mixed-fuel engine also comprises exhaust heat exchanger 10, and air outlet flue 5 is communicated with the heated fluid import of exhaust heat exchanger 10; The outlet of working medium storage tank 4 is communicated with the fluid inlet that is heated of exhaust heat exchanger 10 through high-pressure service pump 7, and the fluid output that is heated of exhaust heat exchanger 10 is communicated with the import of high pressure fluid channel 8; The outlet of high pressure fluid channel 8 is communicated with vapor steam blaster 20 through injection control valve 19, vapor steam blaster 20 is communicated with firing chamber 6, injection control valve 19 is made as the timing control valve, establishes total flow control valve 13 in the outlet of described high-pressure service pump 7, is used to control the total discharge of required working medium.The import of high pressure fluid channel 8 is located at the position of cylinder 1 bottom away from firing chamber 6, and the outlet of high pressure fluid channel 8 is located on the cylinder head 2.When the low-entropy mixed-fuel engine proper functioning, the cooling medium in the high pressure fluid channel 8 is a threshold state.
By the cooling medium in the high-pressure service pump 7 pressurization high pressure fluid channel 8, and regulate the flow of cooling medium in the high pressure fluid channel 8, can so that cold high pressure but in high pressure fluid channel 8, absorb heat back gasification of medium generate the high high compressed steam of hot quality, after the outlet of this high compressed steam via high pressure fluid channel 8, fed in the firing chamber 6 by vapor steam blaster 20 by 19 controls of timing injection control valve and do work to promote piston.In the prior art, cooling water absorbs the rising of heat temperature and has obtained hot water after needing the position of cooling through cylinder liner, cylinder head etc., and this hot water is difficult to effective utilization because hot quality is low, especially is difficult to be used for producing mechanical work.Present embodiment compared with prior art, cooling medium has become the higher high compressed steam of hot quality after absorbing heats through high pressure fluid channel 8, and this high compressed steam can easier be converted into mechanical work.For example feed cylinder in the present embodiment and promote the piston acting.Simultaneously,, in cylinder, spray into high compressed steam, not only utilize high compressed steam to promote piston and externally do work, improve the efficient of motor, can also improve burning situation, reduce the formation of pollutant because high compressed steam has strong turbulence effect.
Low-entropy mixed-fuel engine as shown in Figure 2, itself and embodiment's 1 difference is, the outlet of working medium storage tank 4 is communicated with the fluid inlet that is heated of exhaust heat exchanger 10 through high pressure fluid pump 77, and the fluid output that is heated of exhaust heat exchanger 10 is communicated with the import of high pressure fluid channel 8 through high-pressure service pump 7.The bearing capacity of high pressure fluid channel 8 is more than or equal to 2MPa, establish total flow control valve 13 in the outlet of described high pressure fluid pump 77, be used to control the total discharge of required working medium, when the low-entropy mixed-fuel engine proper functioning, the cooling medium in the high pressure fluid channel 8 is a supercritical state.
The purpose that high pressure fluid pump 77 is set is the circulating pressure for the cooling medium after guaranteeing to gasify, the stable more normal work of assurance system.During proper functioning, exhaust heat exchanger 10 is heated pressure in the fluid passage less than the pressure in the high pressure fluid channel 8.
Low-entropy mixed-fuel engine as shown in Figure 3, itself and embodiment's 1 difference is, the outlet of high pressure fluid channel 8 is communicated with the working medium import 14 of hot machine 12 through flow control valve 59, and the high-temperature, high pressure fluid working medium that is produced in the high pressure fluid channel 8 promotes hot machine 12 works done.Before flow control valve 59, establish high-pressure working medium storage tank 26, can satisfy the requirement of motor peak power and the pressure of equilibrium vapor system, when motor needs big peak power, but intensifying cylinder vapour injection amount, to improve the output power of motor.Establish closed condensate cooler 128 at the sender property outlet place of hot machine 12, the liquid outlet of closed condensate cooler 128 is communicated with working medium storage tank 4, can reduce the consumption of cooling medium like this, thereby reduces vehicle-mounted cooling medium amount.The bearing capacity of high pressure fluid channel 8 is more than or equal to 10MPa.The steam that discharge expansion acting back in the hot machine 12 is recovered, and realizes self-circulation, reduces the volume of working medium storage tank 4, and not so the volume of working medium storage tank 4 will be too huge, and lose actual use value.
Same, by the cooling medium in the high-pressure service pump 7 pressurization high pressure fluid channel 8, and regulate the flow of cooling medium in the high pressure fluid channel 8, can so that cold high pressure but in high pressure fluid channel 8, absorb heat back gasification of medium generate the high supercritical state of hot quality, after the outlet of this high compressed steam via high pressure fluid channel 8, be communicated with the working medium import 14 of hot machine 12, to promote hot machine 12 works done.
In the prior art, cooling water absorbs the rising of heat temperature and has obtained hot water after needing the position of cooling through cylinder liner, cylinder head etc., and this hot water is difficult to effective utilization because hot quality is low, especially is difficult to be used for producing mechanical work.Present embodiment compared with prior art, cooling medium has become the higher supercritical state of hot quality after absorbing heats through high pressure fluid channel 8, the high compressed steam of generation can easier be converted into mechanical work.
Low-entropy mixed-fuel engine as shown in Figure 4, itself and embodiment's 3 difference is, the outlet of working medium storage tank 4 is communicated with the fluid inlet that is heated of exhaust heat exchanger 10 through high pressure fluid pump 77, and the fluid output that is heated of exhaust heat exchanger 10 is communicated with the import of high pressure fluid channel 8 through high-pressure service pump 7.The bearing capacity of high pressure fluid channel 8 is more than or equal to 20MPa, establish total flow control valve 13 in the outlet of described high pressure fluid pump 77, be used to control the total discharge of required working medium, when the low-entropy mixed-fuel engine proper functioning, the cooling medium in the high pressure fluid channel 8 is the ultra supercritical state.
The purpose that high pressure fluid pump 77 is set is the circulating pressure for the cooling medium after guaranteeing to gasify, the stable more normal work of assurance system.During proper functioning, exhaust heat exchanger 10 is heated pressure in the fluid passage less than the pressure in the high pressure fluid channel 8.
Low-entropy mixed-fuel engine as shown in Figure 5, itself and embodiment's 1 difference is, the import of high pressure fluid channel 8 is located at the position that needs local cooling on the cylinder head 2, the outlet of high pressure fluid channel 8 is located at the position of the bottom of cylinder 1 away from firing chamber 6, and the bearing capacity of high pressure fluid channel 8 is more than or equal to 3MPa.The purpose of She Zhiing is for the position of the local cooling of needs being cooled off the stable more normal work of assurance system like this.
Low-entropy mixed-fuel engine as shown in Figure 6, itself and embodiment's 1 difference is, the fluid inlet that is heated of exhaust heat exchanger 10 needs the cryogenic fluid inlet 15 of part high pressure fluid channel 8 at the position of local cooling to be communicated with on cool stream control valve 11 and cylinder head 2.The purpose of She Zhiing is for the position of the local cooling of needs being cooled off the stable more normal work of assurance system equally like this.
Low-entropy mixed-fuel engine as shown in Figure 7, itself and embodiment's 2 difference is, the fluid inlet that is heated of exhaust heat exchanger 10 needs the cryogenic fluid inlet 15 of part high pressure fluid channel 8 at the position of local cooling to be communicated with on cool stream control valve 11 and booster pump 777 and cylinder head 2.The purpose of She Zhiing is for the position of the local cooling of needs being cooled off the stable more normal work of assurance system equally like this.
Low-entropy mixed-fuel engine as shown in Figure 8, itself and embodiment's 1 difference is, before injection control valve 19, establish high-pressure working medium storage tank 26, establish condensate cooler 28 at the back segment of air outlet flue 5, the liquid outlet of condensate cooler 28 is communicated with working medium storage tank 4, can reduce the consumption of cooling medium like this, thereby reduce vehicle-mounted cooling medium amount.High pressure fluid channel 8 is made as the phase transformation high pressure fluid channel equally.Piston 3 is floated piston 303, floated piston 303 all or part of being arranged in the cylinder 1, and the piston top dead center corresponding cylinder 1 of floated piston 303 on top dead center (121) and and the piston lower dead center corresponding cylinder 1 of floated piston 303 on lower dead center (122) between whole stroke range in or partial journey scope inner suspension formula piston 303 and cylinder 1 non-contact suspend and be provided with or accurate the suspension is provided with, in setting or the accurate zone that suspends beyond being provided with of suspending, cylinder 1 and floated piston 303 are provided with the slipper seal contact area.
Claims (14)
1. low-entropy mixed-fuel engine, comprise cylinder (1), cylinder head (2), piston (3), working medium storage tank (4), air outlet flue (5) and firing chamber (6), it is characterized in that: the inside or the outside of the inside of described cylinder (1) sidewall or outside and/or described cylinder head (2) are provided with high pressure fluid channel (8), the bearing capacity of described high pressure fluid channel (8) is more than or equal to 1MPa, described low-entropy mixed-fuel engine also comprises exhaust heat exchanger (10), and described air outlet flue (5) is communicated with the heated fluid import of described exhaust heat exchanger (10);
The outlet of described working medium storage tank (4) is communicated with the fluid inlet that is heated of described exhaust heat exchanger (10) through high-pressure service pump (7), and the fluid output that is heated of described exhaust heat exchanger (10) is communicated with the import of described high pressure fluid channel (8); The outlet of perhaps described working medium storage tank (4) is communicated with the fluid inlet that is heated of described exhaust heat exchanger (10) through high pressure fluid pump (77), and the fluid output that is heated of described exhaust heat exchanger (10) is communicated with the import of described high pressure fluid channel (8) through high-pressure service pump (7);
The outlet of described high pressure fluid channel (8) is communicated with vapor steam blaster (20) through injection control valve (19), and described vapor steam blaster (20) is communicated with described firing chamber (6), and described injection control valve (19) is made as the timing control valve; The outlet of perhaps described high pressure fluid channel (8) is communicated with the working medium import (14) of hot machine (12) through flow control valve (59), and the high-temperature, high pressure fluid working medium that is produced in the described high pressure fluid channel (8) promotes described hot machine (12) work done.
2. low-entropy mixed-fuel engine according to claim 1 is characterized in that: the bearing capacity of described high pressure fluid channel (8) is more than or equal to 2MPa.
3. low-entropy mixed-fuel engine according to claim 1 is characterized in that: the bearing capacity of described high pressure fluid channel (8) is more than or equal to 3MPa.
4. low-entropy mixed-fuel engine according to claim 1 is characterized in that: the bearing capacity of described high pressure fluid channel (8) is more than or equal to 10MPa.
5. low-entropy mixed-fuel engine according to claim 1 is characterized in that: the bearing capacity of described high pressure fluid channel (8) is more than or equal to 20MPa.
6. low-entropy mixed-fuel engine according to claim 1, it is characterized in that: the import of described high pressure fluid channel (8) is located at the position of described cylinder (1) bottom away from described firing chamber (6), and the outlet of described high pressure fluid channel (8) is located on the described cylinder head (2); The import of perhaps described high pressure fluid channel (8) is located at the position that needs local cooling on the described cylinder head (2), and the outlet of described high pressure fluid channel (8) is located at the position of the bottom of described cylinder (1) away from described firing chamber (6).
7. low-entropy mixed-fuel engine according to claim 6 is characterized in that: cryogenic fluid inlet (15) is established at the key cooling position at motor, and the inboard of described cryogenic fluid inlet (15) is communicated with described high pressure fluid channel (8); The outside of described cryogenic fluid inlet (15) is communicated with the outlet of cool stream control valve (11), and the import of described cool stream control valve (11) is communicated with the outlet of booster pump (777), and the import of described booster pump (777) is communicated with the cryogenic fluid source.
8. low-entropy mixed-fuel engine according to claim 1, it is characterized in that: establish high-pressure working medium storage tank (26) before at described injection control valve (19), and/or establish condensate cooler (28) at the back segment of described air outlet flue (5), the liquid outlet of described condensate cooler (28) is communicated with described working medium storage tank (4).
9. low-entropy mixed-fuel engine according to claim 1, it is characterized in that: establish closed condensate cooler (128) at the sender property outlet place of described hot machine (12), the liquid outlet of described closed condensate cooler (128) is communicated with described working medium storage tank (4).
10. low-entropy mixed-fuel engine according to claim 8 is characterized in that: establish described high-pressure working medium storage tank (26) before at described flow control valve (59).
11. according to one of any described low-entropy mixed-fuel engine of claim 1 to 10, it is characterized in that: when described low-entropy mixed-fuel engine proper functioning, the working medium in the described high pressure fluid channel (8) is threshold state or supercritical state or ultra supercritical state.
12. according to one of any described low-entropy mixed-fuel engine of claim 1 to 10, it is characterized in that: described high pressure fluid channel (8) is made as the phase transformation high pressure fluid channel.
13. according to one of any described low-entropy mixed-fuel engine of claim 1 to 10, it is characterized in that: described piston (3) is a floated piston (303), described floated piston (303) is all or part of to be arranged in the described cylinder (1), top dead center (121) on the described cylinder (1) corresponding with the piston top dead center of described floated piston (303) and with the corresponding described cylinder (1) of the piston lower dead center of described floated piston (303) on lower dead center (122) between whole stroke range in or in the partial journey scope described floated piston (303) and described cylinder (1) non-contact suspend and be provided with or accurate the suspension is provided with, in setting or the accurate zone that suspends beyond being provided with of suspending, described cylinder (1) and described floated piston (303) are provided with the slipper seal contact area.
14. according to one of any described low-entropy mixed-fuel engine of claim 1 to 10, it is characterized in that: total flow control valve (13) is established in the outlet in described high-pressure service pump (7) and/or described high pressure fluid pump (77).
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| CN2010201243347U CN201635863U (en) | 2009-05-14 | 2010-03-05 | Low-entropy co-firing engine |
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| CN200920154212.X | 2009-05-14 | ||
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| CN200920299111 | 2009-12-23 | ||
| CN2010201243347U CN201635863U (en) | 2009-05-14 | 2010-03-05 | Low-entropy co-firing engine |
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| CN101832199A (en) * | 2009-05-14 | 2010-09-15 | 靳北彪 | Low-entropy mixed-fuel engine |
| CN102121434A (en) * | 2010-01-22 | 2011-07-13 | 靳北彪 | Low-entropy hybrid combustion circulating thermal power system |
| CN102297021A (en) * | 2011-06-20 | 2011-12-28 | 靳北彪 | High-pressure working medium source gas compressor |
| CN102748134A (en) * | 2011-06-20 | 2012-10-24 | 摩尔动力(北京)技术股份有限公司 | Low-entropy double-working medium thermal power system |
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| CN102996237A (en) * | 2011-12-01 | 2013-03-27 | 摩尔动力(北京)技术股份有限公司 | High-pressure working medium heat engine |
| CN103075269A (en) * | 2012-01-13 | 2013-05-01 | 摩尔动力(北京)技术股份有限公司 | Thermal cylinder for heat engine |
| CN104265505A (en) * | 2013-09-13 | 2015-01-07 | 摩尔动力(北京)技术股份有限公司 | Revolution channel engine |
| CN106640406A (en) * | 2015-11-03 | 2017-05-10 | 熵零股份有限公司 | Heat power system |
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| CN101832199A (en) * | 2009-05-14 | 2010-09-15 | 靳北彪 | Low-entropy mixed-fuel engine |
| CN102121434A (en) * | 2010-01-22 | 2011-07-13 | 靳北彪 | Low-entropy hybrid combustion circulating thermal power system |
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| CN102748134A (en) * | 2011-06-20 | 2012-10-24 | 摩尔动力(北京)技术股份有限公司 | Low-entropy double-working medium thermal power system |
| CN102748159A (en) * | 2011-06-20 | 2012-10-24 | 摩尔动力(北京)技术股份有限公司 | Scavenging double-working-medium continuous combustion chamber piston thermal power system |
| CN102297021B (en) * | 2011-06-20 | 2015-05-20 | 靳北彪 | High-pressure working medium source gas compressor |
| CN102996237A (en) * | 2011-12-01 | 2013-03-27 | 摩尔动力(北京)技术股份有限公司 | High-pressure working medium heat engine |
| CN103075269A (en) * | 2012-01-13 | 2013-05-01 | 摩尔动力(北京)技术股份有限公司 | Thermal cylinder for heat engine |
| CN104265505A (en) * | 2013-09-13 | 2015-01-07 | 摩尔动力(北京)技术股份有限公司 | Revolution channel engine |
| CN106640406A (en) * | 2015-11-03 | 2017-05-10 | 熵零股份有限公司 | Heat power system |
| CN108049994A (en) * | 2017-09-08 | 2018-05-18 | 同济大学 | A kind of fuel supply system for internal combustion engine of Waste Heat Recovery high temperature grease mixing jetting |
| CN111102100A (en) * | 2018-10-29 | 2020-05-05 | 马涅蒂-马瑞利公司 | Internal combustion engine provided with a system for supplying a water-based operating liquid |
| CN111102100B (en) * | 2018-10-29 | 2023-03-14 | 马涅蒂-马瑞利公司 | Internal combustion engine provided with a system for supplying a water-based operating liquid |
| CN111237037A (en) * | 2020-01-14 | 2020-06-05 | 高长生 | High-efficient recycle engine block of heat energy |
| CN111237037B (en) * | 2020-01-14 | 2021-06-29 | 高长生 | High-efficient recycle engine block of heat energy |
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