CN103147854B - Two-stroke free piston internal-combustion engine - Google Patents
Two-stroke free piston internal-combustion engine Download PDFInfo
- Publication number
- CN103147854B CN103147854B CN201110402878.4A CN201110402878A CN103147854B CN 103147854 B CN103147854 B CN 103147854B CN 201110402878 A CN201110402878 A CN 201110402878A CN 103147854 B CN103147854 B CN 103147854B
- Authority
- CN
- China
- Prior art keywords
- cylinder
- piston
- combustion engine
- suction port
- stroke free
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The present invention discloses a kind of two-stroke free piston internal-combustion engine, wherein, comprise and be arranged on the first cylinder and the second cylinder on an axle, first cylinder has first piston and the second piston, first piston and the second piston do and oppositely move back and forth in the first cylinder, second cylinder has first piston and the second piston, first piston and the second piston do and oppositely move back and forth in the second cylinder, the first piston of the first cylinder is connected by first connecting rod with the second piston of the second cylinder, second piston of the second cylinder is connected by second connecting rod with the first piston of the second cylinder, kinergety is converted into an energy transfer machine by first connecting rod and second connecting rod, one at least the first cylinder or the second cylinder is connected with fuel supply, at least one of first cylinder and the second cylinder has top dead center and lower dead center.During internal combustion engine, open the first row suction port of the first cylinder, then open the second row suction port of the first cylinder, the fuel that fuel is supplied and air enter.
Description
Technical field
The present invention relates to a kind of technical field of internal-combustion engine, particularly relate to a kind of technical field of internal combustion engines of two-stroke free-piston.
Background technique
Patent 6170443 discloses a kind of driver, it is mentioned in the contraposition engine of two stroke IC engine opposed piston, and be placed on same axis before and after its two cylinders, each cylinder has a pair opposed pistons, move single piston in the same direction, and connected by crank arm and lead.Each piston is in respective cylinder, so when staggered igniting, connect the piston of two pistons to moving in the opposite direction respectively, the energy transferring of motion drives to bent axle with this.When piston is at top dead center position, fuel is injected into firing chamber.
The motor mentioned in patent 6170443, because bent axle promotes piston movement, so all keep identical compression ratio in each case, make the running parameter needed for spontaneous combustion method, as compression, temperature, fuel type, and injection mode, all fix according to actual conditions.In addition, fuel supply must use high-pressure injection device, because when piston arrives top dead center position, fuel must inject respective cylinder.
Summary of the invention
The object of the present invention is to provide a kind of two-stroke free piston internal-combustion engine.
To achieve these goals, the technological scheme that the present invention takes is:
A kind of two-stroke free piston internal-combustion engine, wherein, comprise and be arranged on the first cylinder and the second cylinder on an axle, described first cylinder has first piston and the second piston, described first piston and described second piston do and oppositely move back and forth in described first cylinder, described second cylinder has first piston and the second piston, described first piston and described second piston do and oppositely move back and forth in described second cylinder, the first piston of described first cylinder is connected by first connecting rod with the second piston of described second cylinder, second piston of described second cylinder is connected by second connecting rod with the first piston of described second cylinder, kinergety is converted into an energy transfer machine by described first connecting rod and described second connecting rod, one at least the first cylinder or the second cylinder is connected with fuel supply, at least one of described first cylinder and described second cylinder has top dead center and lower dead center, two row's suction ports are close to the suction port plane of described top dead center, two relief openings are close to described lower dead center, described suction port plane is connected with the air blowing opening outside described first cylinder, and described suction port plane is connected with the air blowing opening outside described second cylinder.
Above-mentioned two-stroke free piston internal-combustion engine, wherein, described fuel supply is an oil nozzle, makes gasoline directly inject the suction port plane of described first cylinder and the suction port plane of described second cylinder.
Above-mentioned two-stroke free piston internal-combustion engine, wherein, described fuel supply is at least connected with a Carburetor.
Above-mentioned two-stroke free piston internal-combustion engine, wherein, described first cylinder and described second cylinder are at least connected with an inflator, are the suction port of described first cylinder and the suction port supply air of described second cylinder.
Above-mentioned two-stroke free piston internal-combustion engine, wherein, described first cylinder and described second cylinder have relief opening respectively, and a catalyst communicates with the relief opening of described first cylinder and described second cylinder.
Above-mentioned two-stroke free piston internal-combustion engine, wherein, described catalyst is NOx catalyst, and described catalyst is connected with a stirring apparatus.
Above-mentioned two-stroke free piston internal-combustion engine, wherein, the waste gas in described first cylinder and described second cylinder mixes in described stirring apparatus, and transfers to an oxidized form catalyst by an exhaust gas turbine.
Above-mentioned two-stroke free piston internal-combustion engine, wherein, described catalyst is triple mode catalytic converter.
Above-mentioned two-stroke free piston internal-combustion engine, wherein, also comprise for detecting described first cylinder first piston and the second piston position, the first sensor of movement and velocity information and the second sensor, and described first sensor is connected with a controller with described second sensor, the information control operation engine that described controller detects based on described first sensor and described second sensor.
A kind of two-stroke free piston internal-combustion engine, wherein, comprise and be arranged on the first cylinder and the second cylinder on an axle, described first cylinder has first piston and the second piston, described first piston and described second piston do and oppositely move back and forth in described first cylinder, described second cylinder has first piston and the second piston, described first piston and described second piston do and oppositely move back and forth in described second cylinder, the first piston of described first cylinder is connected by first connecting rod with the second piston of described second cylinder, second piston of described second cylinder is connected by second connecting rod with the first piston of described second cylinder, kinergety is converted into an energy transfer machine by described first connecting rod and described second connecting rod, one at least the first cylinder or the second cylinder is connected with fuel supply, at least one of described first cylinder and described second cylinder has top dead center and lower dead center, two row's suction ports are close to the suction port plane of described top dead center, two relief openings are close to described lower dead center, described suction port plane is connected with the air blowing opening outside described first cylinder, described suction port plane is connected with the air blowing opening outside described second cylinder, during internal combustion engine, open the first row suction port of described first cylinder, open the second row suction port of the first cylinder again, the fuel that described fuel is supplied and air enter.
A kind of two-stroke free piston internal-combustion engine, wherein, comprise and be arranged on the first cylinder and the second cylinder on an axle, described first cylinder has first piston and the second piston, described first piston and described second piston do and oppositely move back and forth in described first cylinder, described second cylinder has first piston and the second piston, described first piston and described second piston do and oppositely move back and forth in described second cylinder, the first piston of described first cylinder is connected by first connecting rod with the second piston of described second cylinder, second piston of described second cylinder is connected by second connecting rod with the first piston of described second cylinder, kinergety is converted into an energy transfer machine by described first connecting rod and described second connecting rod, one at least the first cylinder or the second cylinder is connected with fuel supply, at least one of described first cylinder and described second cylinder has top dead center and lower dead center, two row's suction ports are close to the suction port plane of described top dead center, two relief openings are close to described lower dead center, described suction port plane is connected with the air blowing opening outside described first cylinder, described suction port plane is connected with the air blowing opening outside described second cylinder, and the gasoline of described fuel supply directly injects the suction port plane of described first cylinder and the suction port plane of described second cylinder.
The present invention is owing to have employed above-mentioned technology, and the good effect making it compared with prior art to have is:
(1) because the two-piston of the first cylinder with the second cylinder is not connected, just undefined compression ratio, therefore, compression ratio is at certain variable range, and the suction port provided and relief opening are all positioned at suitable position.
(2) entering along with air, piston just stops when moving to top dead center position refueling, like this because another would not affect the supply of fuel to the pressure increase caused by piston reverses direction motion, it is made to refuel in several ways, such as fuel can use the oily device of standardized designs to be filled with suction port outside cylinder, or uses the mode of injection.
(3) time of oil injection is effectively postponed, when relief opening is covered by the second piston, just can injected fuel.
(4) related data by using sensor to detect piston movement, and use the operation of corresponding controller controlling combustion engine, different motor related control values can be specified for compression ratio.Meanwhile, also by the control value within the scope of the compression factor of specifying, dissimilar fuel handling internal-combustion engine is used.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of two-stroke free piston internal-combustion engine of the present invention;
Fig. 2 is that first of the first cylinder in two-stroke free piston internal-combustion engine of the present invention runs schematic diagram;
Fig. 3 is that second of the first cylinder in two-stroke free piston internal-combustion engine of the present invention runs schematic diagram;
Fig. 4 is that the 3rd of the first cylinder in two-stroke free piston internal-combustion engine of the present invention runs schematic diagram;
Fig. 5 is that the 4th of the first cylinder in two-stroke free piston internal-combustion engine of the present invention runs schematic diagram;
Fig. 6 is the compression process schematic diagram of cylinder in two-stroke free piston internal-combustion engine of the present invention;
Fig. 7 is the schematic diagram of the piston IC engine in Fig. 1;
Fig. 8 is the schematic diagram of the piston IC engine in Fig. 1.
Embodiment
The embodiment of two-stroke free piston internal-combustion engine of the present invention is provided below in conjunction with accompanying drawing.
Fig. 1 is the schematic diagram of two-stroke free piston internal-combustion engine of the present invention, shown in Figure 1.A kind of two-stroke free piston internal-combustion engine of the present invention, comprises before and after the first cylinder 1 and the second cylinder 2, two cylinder and is arranged on same axle.First cylinder 1 has first piston 1.1 and the second piston 1.2, second cylinder 2 has first piston 2.1 and the second piston 2.2.First piston 1.1 and the second piston 1.2 do and oppositely move back and forth in the first cylinder 1, and first piston 2.1 and the second piston 2.2 do and oppositely move back and forth in the second cylinder 2.The first piston 1.1 of the first cylinder 1 can be connected by first connecting rod 3 with the second piston 2.2 of the second cylinder 2, and the second piston 1.2 of the first cylinder 1 can be connected by second connecting rod 4 with the first piston of the second cylinder 2.As a result, first piston 1.1 and the second piston 2.2 move in the same direction, the second piston 1.2 and first piston 2.1 move in the same direction.
First connecting rod 3 and second connecting rod 4 by the Conversion of Energy of motion to an enegrgy converter 5 li.Transducer 5 can make design of gears, to coordinate downstream engine, or also can be the generator of a system directly can changing that first connecting rod 3 and second connecting rod 4 kinergety are electric energy, such as linear generating.
Please continue shown in Figure 1.At the expansion stroke initial stage of the first cylinder 1, after gas mixture igniting, engine normally runs.Correspondingly, first piston 1.1 and the second piston 1.2 are pushed open by pressure in the first cylinder 1, and the first piston 2.1 simultaneously in the second cylinder 2 and the second piston 2.2 move towards right direction.
In order to refuel change, the first cylinder 1 and each own water intake at least accounting for a line of the second cylinder 2, respectively by circumference, form the suction port plane 1.3 of the first cylinder 1 and the suction port plane 2.3 of the second cylinder 2.The suction port plane 1.3 of the first cylinder 1 is connected with air blowing opening 1.4, and the suction port plane 2.3 of the second cylinder 2 is connected with air blowing opening 2.4.Shown in Fig. 1, suction port plane 1.3 comprises two row's imports 1.31 and 1.32, and suction port plane 2.3 comprises two row's imports 2.31 and 2.32.First piston 1.1 and 2.1 associates the motion of suction port plane 1.3 and 2.3 in operation, covers respectively and opens opening.
Each air blowing opening 1.4 and 2.4, outside respective cylinder, has the ring-like pipeline surrounding suction port plane 1.3 and 2.3 respectively.Ring pipe can be connected to compressor, such as, comprise the turbosupercharger of inflator 6 and exhaust gas turbine 7.
The firing chamber at the first cylinder 1 and the second cylinder 2 place is directly injected in fuel supply by controlled oil nozzle 8 and 9.Oil nozzle 8 and 9 discharge fuel is respectively to the suction port plane 1.3 and 2.3 of each cylinder.As shown in Fig. 1, in the expansion stroke of the first cylinder 1, the outlet of oil nozzle 8 is closed by first piston 1.1, and the simultaneously outlet of oil nozzle 9 is opened in the second cylinder 2 (until second connecting rod 4 promotes the outlet by oil nozzle 9 of first piston 2.1 and the second piston 1.2).Can improve in the first cylinder 1 and the second cylinder 2 by arranging several oil nozzle.
Relief opening 1.5 and 2.5 is distributed in the surrounding of the first cylinder 1 and the second cylinder 2 respectively.Relief opening 1.5 and 2.5 also can be placed in the one end, opposite relative to suction port plane 1.3 and 2.3 in the first cylinder 1 and the second cylinder 2.Relief opening 1.5 and 2.5 can pour the relief opening 1.6 and 2.6 of the turbosupercharger being connected respectively to exhaust gas turbine 7 into.
In the expansion stroke of the first cylinder 1, first piston 2.1 moves right, and the second piston 2.2 is moved to the left.When the second piston 2.2 has enough displacements in the second cylinder 2, the relief opening 2.5 in the second cylinder 2 can be covered, thus the fuel in compression the second cylinder 2.Air mixture is to predetermined compression ratio, and spontaneous ignition can be carried out smoothly, and then piston movement direction correspondingly converts.
Controller 10 provides stable operation, and controls fuel and be supplied to Energy transmission 11 in proportion, is delivered to consumable thing from enegrgy converter 5.Controller 10 connecting sensor 12 and 13.They detect first piston 1.1 and the second piston 1.2 state relative to move distance respectively, and motion sequence is by the time, and the motion sequence having walked distance and/or the speed having walked distance determine.
Triggering oil nozzle 8 and 9 fuel-injected time point can by the determining positions of detection piston.The position of detection piston also can provide the information of compression ratio, can adjust in each case, also can directly obtain from the spacing between two pistons.The energy consumed by transducer except consumable thing and the quantity of supply, the supply increasing or reduce fuel also directly can affect actual compression ratio.
In first cylinder 1, first piston 1.1 is identical with the detection of the second piston 2.2 with first piston 2.1 in the second cylinder 2 with the position sensing of the second piston 1.2.Therefore, if position sensing in operation shows that compression ratio just arrives ignition point, such as, the first cylinder 1 has just been enough to produce spontaneous combustion, then controller 10 can inject fuel directly to the second cylinder 2, and such second cylinder 2 just result in as compression ratio higher in next round first cylinder 1.
Because suction port plane 1.3 and 2.3 is arranged in one end of the first cylinder 1 and the second cylinder 2 respectively, relief opening 1.5 and 2.5 is respectively at the other end, and so-called " clear operation " creates along with the motion of piston, and creates longitudinal air circulation of through cylinder.When first piston 1.1 and 2.1 respectively through air inlet plane 1.3 and 2.3 time, the import 1.31,1.32 and 2.31,2.32 be positioned at down to a position is all opened.As a result, fresh air flows into cylinder, and the waste gas simultaneously got rid of opens relief opening 1.5 and 2.5 by simple displacement mode.
Please continue shown in Figure 1.Each suction port plane 1.3 and 2.3 comprises two respectively and to advance gas port 1.31,1.32 and 2.31,2.32, and when in the backhaul of first piston 1.1 and 2.1 in inflation process, the operation of removing starts.Because the air sucked does not pass on, but under being in the pressure of inflator 6, the fresh air under pressure instead of the region that waste gas enters suction port plane 1.3 and 2.3.Along with first piston 1.1 and 2.1 is to the further motion of bottom dead center, second row (can provide each suction port an additional row) of suction port 1.32 and 2.32 exposes.A large amount of fresh airs enters from opening, depends on default pressure, and when ensureing that suction port 1.31,1.32 and 2.31,2.32 and relief opening 1.5 and 2.5 are again closed in piston movement process, the waste gas of the first cylinder 1 and 2 li, the second cylinder is completely cleaned.
Suction port 1.31,1.32 and 2.31,2.32 due to each air inlet plane 1.3 and 2.3 is the form of port (due to the thickness that cylinder wall is limited) respectively, realizes tangential introduction of air and flows into the first cylinder 1 and the second cylinder 2 is feasible.Such as, the first row of suction port 1.31 and 2.31 may form the air swirl of each cylinder chamber at a right angle.Second row of suction port 1.32 and 2.32 can be arranged to radial, to have fresh air supply in each cylinder guaranteeing core area always, and clears up tail gas continuously along the direction of whole cylinder exhaust port.
As mentioned above, when compression ratio is also in lower state, when first piston 1.1 and 2.1 moves towards top dead center direction, the outlet of oil nozzle is closed by two first pistons.Due to this arrangement, oil sprayer spout can the protected unlifting pressure do not contacted in hot combustion gas and firing chamber.Therefore, low-pressure injection system can be used.In the case, oil spout nozzle 8 and 9 can be placed on the first row be associated away from suction port 1.31 and 2.31, and to increase the distance with first time first piston 1.1 and 2.1, such oil plant better can be injected into piston base towards the direction of suction port plane.Due to the strong whirlpool of the inlet stream under pressure, fuel intensive mixing in firing chamber of injection.This intensive mixing especially can occur in towards in the inflation process of lower dead center, and suction port can tangentially disconnect, such as, can first be opened by first piston, then closes in the compression stroke of first piston, and maintain in " elapsed time " like this has swirling motion always.
Allowing oil nozzle 8 be connected one of relief opening with 9 likely can be more favourable, and such fuel enters firing chamber by the support of air.So fuel supply can be controlled by the air inlet opening mode controlling various inlet mouth plane.
Also can revise further, basic fuel load can by injecting or taking in air blowing opening 1.4 and 2.4 by Carburetor, only have part fuel quantity in order to maintain required stablizing, also only have the oil mass of this part directly can inject firing chamber by " accurate adjustment ".This confirms that the advantage of suction port plane spurted into by fuel equally because produce when it can prevent piston in combustion process from covering oil nozzle overheated, decrease cooling requirement when fuel injects.Result to inject less fuel.
Fig. 2 is that first of the first cylinder in two-stroke free piston internal-combustion engine of the present invention runs schematic diagram, Fig. 3 is that second of the first cylinder in two-stroke free piston internal-combustion engine of the present invention runs schematic diagram, Fig. 4 is that the 3rd of the first cylinder in two-stroke free piston internal-combustion engine of the present invention runs schematic diagram, Fig. 5 is that the 4th of the first cylinder in two-stroke free piston internal-combustion engine of the present invention runs schematic diagram, refers to shown in Fig. 2 to Fig. 5.Fig. 1 and Fig. 2 describe first piston 1.1 and the second piston 1.2 arrive inflation process terminate before motion, tail gas is illustrated by the broken lines.When piston moves to position shown in Fig. 3 from Fig. 2, suction port plane 1.3 is covered by first piston 1.1, and relief opening 1.5 is covered by the second piston 1.2.This makes ozone be pushed into the first cylinder 1(as shown in Fig. 1 by aerator 6).
Fig. 3 shows first piston 1.1 and the second piston 1.2 when lower dead center motion reverses, just when fuel supply starts.Fuel injects first piston 1.1 bottom by oil nozzle 8, thus the fuel of strengthening mixing and fresh air continuously flow in suction port plane 1.3.
The result of clear operation is that enough fresh airs are pushed cylinder chamber before first piston 1.1 and the second piston 1.2 close suction port plane 1.3 and relief opening 1.5, and a small amount of fresh air enters relief opening 1.5 along with waste gas.Once suction port plane 1.3 and relief opening 1.5 are closed, then start the squeeze operation in Fig. 5, wherein fuel-air mixture is compressed, once after reaching burning compression point, is lighted by spontaneous combustion or outside.
There is a small amount of fresh air during clear operation when details being described pump-down process below because the air-flow longitudinal flow in cylinder pushes the advantage of relief opening.Fig. 6 is the compression process schematic diagram of cylinder in two-stroke free piston internal-combustion engine of the present invention, shown in Figure 6.What two relief openings were favourable converges to stirring apparatus 14, and waste gas sequentially passes through line 15 from 14 and is vented to exhaust gas turbine 7.
Please continue shown in Figure 6.Waste gas E is pushed into relief opening at first in scale removal process, with a small amount of fresh air F, mixes with waste gas in border district.The waste gas of two cylinders separately and continuously in batches, along with the operation cycle enters stirring apparatus 14.The pressure of exhaust gas flow can reduce in stirring apparatus 14.
Adjust fuel supply by controller 10, the air ratio of waste gas E is about Lambda=0.9.By correspondingly pressure adjusting, when just may maintain in 10% release waste gas E scale removal process, fresh air F constantly pushes relief opening 1.6 and 2.6.When waste gas E and fresh air F mixes in stirring apparatus 14, such as, probably have consequent air ratio and be about Lambda=1.0, this is that tail gas clean-up is assisted needed for the operation of control triple mode catalytic converter.
Fig. 7 is the schematic diagram of the piston IC engine in Fig. 1, and Fig. 8 is the schematic diagram of the piston IC engine in Fig. 1, refers to shown in Fig. 7 and Fig. 8.According to the waste gas cleaning feature of invention, Fig. 7 and 8 illustrates internal-combustion engine circuit arrangement, and the particular of internal-combustion engine, quotes can obtain further details to Fig. 1.
Fig. 7 shows use 3 yuan of catalytic converters to the circuit design of the way of example of tail gas clean-up process, and waste gas is from exhaust gas turbine 7.Mix waste gas and flow through stirring apparatus 14 air mixture exhaust gas turbine 7 in homogeneous further, make waste gas and air have a ratio to be about Lambda=1.0, fuel supply can be adjusted by this.
The measured value that air ratio in waste gas can be provided by controller 10 and the standard mode that Lambda standard 16 is monitored.
Two stroke IC engine has the free opposed pistons of type mentioned above, and it does not utilize piston to draw, and may need complicated control.Consequently, the position of piston and speed, the air ratio in waste gas, the air ratio exporting 11 is presented on enegrgy converter 5, is also likely monitored by control gear 10.Oil nozzle 8 and 9 supplies the primary variables of fuel, the output 11 on enegrgy converter 5, and its function is the moving equilibrium compression ratio according to adjustment free-piston to a certain extent.
Exhaust gas turbine 7 and inflator 6 can be driven by generator 17 in addition or stop, and also can make generator and use, and corresponding pilot controller 18.Discarded enter triple mode catalytic converter 19 before, this may control for waste gas ratio provide additional or substitute, and such as fuel supply is preset in this case.Enegrgy converter 5 for the exemplary scenario of generator, energy can enegrgy converter 5(generator 17 drive inflator 6) or directly store (when generator 17 stops inflator 6).For the enegrgy converter of other types, generator 17 can obtain electric energy by accessory power supply.
Fig. 8 is the schematic diagram of the piston IC engine in Fig. 1, shown in Figure 8.Fig. 8 internal-combustion engine shown in Fig. 1 has dissimilar exhaust gas catalytic converter.Independent NOx catalyst 20 and 21 is installed in relief opening 1.6 and 2.6(as shown in Fig. 1), NOx catalyst 20 and 21 is disposed to stirring apparatus 14.Waste gas in two cylinders mixes in stirring apparatus 14, sends into downstream oxidation catalyst 22 in succession subsequently by exhaust gas turbine 7.A large amount of hydro carbons and carbon monoxide oxidized in oxidized form catalyst 22.
The fresh air A that Fig. 1 to Fig. 6 shows waste gas E and relatively small amount subsequently may be imported into two NOx catalysts 20 and 21.In relief opening, the air ratio fine setting of about Lambda=1 may there is no need in this case, because NOx catalyst 20 and 21 can react rapidly to reduce any excessive air, evacuating air can be flowed in stirring apparatus 14 and oxidized form catalyst 22 than about Lambda > 1.0 and be oxidized.
Exhaust rate described above and toxic emission and waste-gas cleaning show, except previously described control option, can formulate exhaust emissions strategy and allow to have load variations to react faster.Such internal-combustion engine, has the enegrgy converter being connected to downstream, preferably can always in running state, if load changes like this, controller only needs to change fuel supply and waste gas Lambda air ratio, such as, from full capacity to sub load, or on the contrary.
The good effect of the present invention after using above-described embodiment:
By the related data using sensor to detect piston movement, and use the operation of corresponding controller controlling combustion engine, different motor related control values can be specified for compression ratio.Meanwhile, also by the control value within the scope of the compression factor of specifying, dissimilar fuel handling internal-combustion engine is used.
Such as, if explosive motor is used for driving-energy transducer, motor-generator sets, then enegrgy converter may be used in the single operation period to perform control operation.Such as, use sensor connection control unit, and in detection cylinder, the position of piston and the motion (special exercise of piston depends on the time) of piston are all possible.Such as, as required generator can be used as motor to use, by providing the voltage of clock control, to drive internal-combustion engine (in one-period).Or also just can make generator as required and use, can be effectively piston brake.As a result, engine speed is exceedingly fast and the control operation of sensitivity, have stable operation, be possible simultaneously, even if right two piston movements of each piston are not pulled, and conventional engine bent axle can draw piston.
In sum, use two-stroke free piston internal-combustion engine of the present invention, because the two-piston of the first cylinder with the second cylinder is not connected, with regard to undefined compression ratio, therefore, compression ratio is at certain variable range, and the suction port provided and relief opening are all positioned at suitable position.Along with entering of air, just stop when piston moves to top dead center position refueling, like this because another would not affect the supply of fuel to the pressure increase caused by piston reverses direction motion, make it refuel in several ways.Meanwhile, effectively postpone the time of oil injection, when relief opening is covered by the second piston, just can injected fuel.
The above is preferred embodiment of the present invention, and not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a two-stroke free piston internal-combustion engine, it is characterized in that, comprise and be arranged on the first cylinder and the second cylinder on an axle, described first cylinder has first piston and the second piston, described first piston and described second piston do and oppositely move back and forth in described first cylinder, described second cylinder has first piston and the second piston, described first piston and described second piston do and oppositely move back and forth in described second cylinder, the first piston of described first cylinder is connected by first connecting rod with the second piston of described second cylinder, second piston of described second cylinder is connected by second connecting rod with the first piston of described second cylinder, kinergety is converted into an energy transfer machine by described first connecting rod and described second connecting rod, one at least the first cylinder or the second cylinder is connected with fuel supply, at least one of described first cylinder and described second cylinder has top dead center and lower dead center, two row's suction ports are close to the suction port plane of described top dead center, two relief openings are close to described lower dead center, described suction port plane is connected with the air blowing opening outside described first cylinder, and described suction port plane is connected with the air blowing opening outside described second cylinder, also comprise for detecting described first cylinder first piston and the second piston position, the first sensor of movement and velocity information and the second sensor, and described first sensor is connected with a controller with described second sensor, the information control operation engine that described controller detects based on described first sensor and described second sensor, described first cylinder and described second cylinder have relief opening respectively, and a catalyst communicates with the relief opening of described first cylinder and described second cylinder.
2. two-stroke free piston internal-combustion engine according to claim 1, is characterized in that, described fuel supply is an oil nozzle, makes gasoline directly inject the suction port plane of described first cylinder and the suction port plane of described second cylinder.
3. two-stroke free piston internal-combustion engine according to claim 1, it is characterized in that, described fuel supply is at least connected with a Carburetor.
4. two-stroke free piston internal-combustion engine according to claim 1, it is characterized in that, described first cylinder and described second cylinder are at least connected with an inflator, are the suction port of described first cylinder and the suction port supply air of described second cylinder.
5. two-stroke free piston internal-combustion engine according to claim 1, it is characterized in that, described catalyst is NOx catalyst, and described catalyst is connected with a stirring apparatus.
6. two-stroke free piston internal-combustion engine according to claim 5, is characterized in that, the waste gas in described first cylinder and described second cylinder mixes in described stirring apparatus, and transfers to an oxidized form catalyst by an exhaust gas turbine.
7. two-stroke free piston internal-combustion engine according to claim 1, it is characterized in that, described catalyst is triple mode catalytic converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110402878.4A CN103147854B (en) | 2011-12-07 | 2011-12-07 | Two-stroke free piston internal-combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110402878.4A CN103147854B (en) | 2011-12-07 | 2011-12-07 | Two-stroke free piston internal-combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103147854A CN103147854A (en) | 2013-06-12 |
| CN103147854B true CN103147854B (en) | 2015-09-30 |
Family
ID=48546124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110402878.4A Active CN103147854B (en) | 2011-12-07 | 2011-12-07 | Two-stroke free piston internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103147854B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837457B (en) * | 2017-03-22 | 2019-04-09 | 北京理工大学 | Variable valve timing mechanism for opposed-piston engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380491A (en) * | 2002-03-13 | 2002-11-20 | 于晓林 | Reciprocating piston all hydraulic transmission internal combustion engine |
| CN1888402A (en) * | 2006-07-20 | 2007-01-03 | 上海交通大学 | Free-piston type internal combustion engine power generating system |
| CN1957179A (en) * | 2004-05-25 | 2007-05-02 | 福特全球技术公司 | Opposed piston opposed cylinder free piston engine |
-
2011
- 2011-12-07 CN CN201110402878.4A patent/CN103147854B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380491A (en) * | 2002-03-13 | 2002-11-20 | 于晓林 | Reciprocating piston all hydraulic transmission internal combustion engine |
| CN1957179A (en) * | 2004-05-25 | 2007-05-02 | 福特全球技术公司 | Opposed piston opposed cylinder free piston engine |
| CN1888402A (en) * | 2006-07-20 | 2007-01-03 | 上海交通大学 | Free-piston type internal combustion engine power generating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103147854A (en) | 2013-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101046176B (en) | Dual combustion mode engine | |
| KR101423726B1 (en) | EGR Venturi Diesel Injection | |
| US7047916B2 (en) | Two-stroke internal combustion engine with free opposed pistons | |
| CN100564828C (en) | Internal-combustion engine | |
| CN104220717B (en) | Two-stroke circulation explosive motor and operation method thereof | |
| CN103026024B (en) | For the piston-engined egr of opposed type | |
| CN103221661B (en) | Device for detecting abnormality of air-fuel ratio dispersion among cylinders | |
| RU2700813C2 (en) | Method and system for fuel injector | |
| CN105683541B (en) | The control device of compression ignition engine | |
| JP2008025534A (en) | Premixed compression self-ignition internal combustion engine | |
| CN100404814C (en) | Method of operating directly injecting diesel engine | |
| CN106285985A (en) | Petrol engine excess air coefficient method for controlling combustion and combustion control system | |
| CN105909399A (en) | Internal combustion engine for dual-fuel ship, corresponding method and retrofit kit thereof | |
| CN103573480A (en) | Pure oxygen engine and combustion control method for pure oxygen engine | |
| US9151222B2 (en) | Six-stroke combustion cycle engine and process | |
| CN104763540B (en) | The internal combustion engine for operating the method for internal combustion engine and being operated with this method | |
| CN109891069A (en) | Improve the pressurization of engine braking and mapping | |
| CN102022209B (en) | Injection method and device for controlling an injection process in an internal combustion engine | |
| KR20120135912A (en) | Internal combustion engine with denitrification unit, and ocean vessel provided with same | |
| JP2020070804A (en) | Large 2-stroke uniflow scavenging gas fuel engine and method of reducing preignition or diesel knocking | |
| CN102287282B (en) | Internal combustion engine | |
| CN102287280A (en) | Internal combustion engine | |
| CN103147854B (en) | Two-stroke free piston internal-combustion engine | |
| JP5689830B2 (en) | Internal combustion engine | |
| CN102287278A (en) | Internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210419 Address after: 219-220, Lane 299, Anhong Road, Jiading District, Shanghai, 201804 Patentee after: Design of youhualuosi automobile ( Shanghai ) Ltd. Address before: 201805, Shanghai, Anting Town, Jiading District double Pu Village West Gate Patentee before: YOUHUA ROUSH AUTOMOBILE SYSTEM (SHANGHAI) Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221123 Address after: Room 101, Building 1, No. 299, Anhong Road, Anting Town, Jiading District, Shanghai, 200000 Patentee after: Jiau industrial design (Shanghai) Co.,Ltd. Address before: 219-220, Lane 299, Anhong Road, Jiading District, Shanghai, 201804 Patentee before: Design of youhualuosi automobile ( Shanghai ) Ltd. |