CN203756332U - Double-piston internal combustion engine - Google Patents
Double-piston internal combustion engine Download PDFInfo
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- CN203756332U CN203756332U CN201420154728.5U CN201420154728U CN203756332U CN 203756332 U CN203756332 U CN 203756332U CN 201420154728 U CN201420154728 U CN 201420154728U CN 203756332 U CN203756332 U CN 203756332U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
A double-piston internal combustion engine comprises a piston (1), a cylinder (2), a cylinder cover (3), a pressure sensor (11), a pressure strain piston (4), an air bag (5) and a stress piston (6). The cylinder cover (3) is arranged at the upper end of the cylinder (2), the lower end of the piston (1) is connected with a connecting rod, the connecting rod is connected with a crankshaft to form a piston crank connecting rod mechanism, the pressure strain piston (4), the air bag (5) and the stress piston (6) are arranged in the cylinder cover (3), one end of the stress piston (6) is abutted to the lower portion of the air bag (5), the other end of the stress piston (6) is connected with the pressure strain piston (4) through a connecting rod (8), a pressure relief pipe (12) and a pressurizing pipe (13) are respectively connected onto the air bag (5), and normally closed solenoid valves (10) are arranged on the pressure relief pipe (12) and the pressurizing pipe (13) respectively. The combustion state and characteristics of the internal combustion engine can be controlled.
Description
Technical field
The utility model relates to internal-combustion engine, relate in particular a kind of Dual-piston IC engine, belong to combustion in IC engine control technique field, specifically to liking combustion chambers of internal combustion engines, directly combustion motor Combustion Process Control, relates to the control of combustion in IC engine terminal state, burn cycle process control and internal combustion engine operation operating conditions.
Background technique
The development of combustion in IC engine control technique, is mainly subject to energy-conservation and promotion low emission demand.Combustion engine energy-saving technology is to pursue constant volume heating process, improve combustion temperature, realize the high efficiency of fuel utilization, reach energy-conservation object, internal-combustion engine low emission requires to reduce the combustion temperature of fuel, reduces the generation of harmful products of combustion, thus, the contradiction existing between energy-conservation and low emission on improving the engine cycle thermal efficiency, reduce exhaust emission and cost of production has caused very large impact, is the key problem that contemporary combustion in IC engine control technique solves.Existing combustion engine energy-saving and low emission control, that the states such as the compression ratio before mixture combustion, proportions of ingredients, temperature and pressure are taked to multiple technologies control, be selected at the energy-conservation and low emission combustion technology scheme of optimizing of compromising between the two, to seek the again balance of new technologies and methods to both, its system complex, cost is higher, and usefulness is low.
Chinese invention patent application publication number: CN1263205A, open day: on August 16th, 2000, name is called in the application for a patent for invention of " a kind of double-piston internal combustion engine and method thereof that improves output power ", a kind of double-piston internal combustion engine that improves output power is disclosed, mainly comprise a cylinder, two pistons, one transmission device and an eccentric wheel, in the time that first piston is crossed upper initial point and is wanted to move down, eccentric wheel second piston of extruding downwards that utilizes transmission device to drive, make first piston and the second piston synchronous hold down the fixing compression ratio of air chamber in cylinder, then igniting, ignite oil gas, while completing to blast from igniting due to engine, first piston is the state that utilizes acting completely, by engine because of outburst gained energy act on completely on positive work, reach fuel saving and reduce air-polluting effect.But after cam stroke is determined, compression ratio is just determined, therefore can only become Stroke Control compression ratio by cam in patent application of the present invention, meets the needs of the different operating modes of internal-combustion engine, can not control combustion heating state and feature thereof; And after compression ratio determines, combustion chamber volume has also just been determined, therefore under certain operating mode, combustion chamber volume does not change, can not change combustion chamber volume by the second piston, so cannot utilize combustion chamber volume to become effective acting volume, still belong to constant volume heating process; Meanwhile, After Top Center burning in patent application of the present invention, the time decreased of in fact burning, in practice, internal-combustion engine runs up, and fuel is discharged from cylinder and has not still burnt, and delivery temperature improves, and fuel availability is low.
Summary of the invention
The purpose of this utility model is to exist between and low emission energy-conservation for existing combustion in IC engine control technique contradiction or the problem such as Dual-piston IC engine fuel availability is low, and a kind of Dual-piston IC engine is provided.
For achieving the above object, technical solution of the present utility model is: a kind of Dual-piston IC engine, comprise piston, cylinder, cylinder head, described cylinder head is arranged on cylinder upper end, piston lower end is connected with connecting rod, described connecting rod and bent axle are connected to form piston crank linkage mechanism, also include pressure transducer, pressure-strain piston, air bag and stressed piston, described pressure-strain piston, air bag and stressed piston are arranged in cylinder head, described air bag is arranged on pressure-strain piston top, described stressed piston one end is resisted against air bag below, the stressed piston the other end is connected with pressure-strain piston by connecting rod, on described air bag, be connected with respectively relief tube and forcing pipe, on described relief tube and forcing pipe, be respectively arranged with normally closed solenoid valve.
Described stressed piston below is provided with damping spring, and described damping spring upper end is fixed on stressed piston bottom surface, and damping spring lower end is fixed in the dunnage of cylinder cap.
Described pressure transducer is arranged on air bag, or pressure transducer is arranged on forcing pipe and between normally closed solenoid valve and air bag, or pressure transducer is arranged on relief tube and between normally closed solenoid valve and air bag.
Described forcing pipe is connected with the gas cylinder outside cylinder head.
Compared with prior art, the application's beneficial effect is:
1, simple in structure, realize combustion regime and the character control thereof of the different operating modes of combustion motor.In the application, include pressure transducer, pressure-strain piston, air bag and stressed piston, pressure-strain piston, air bag and stressed piston are arranged in cylinder head, air bag is arranged on pressure-strain piston top, stressed piston is arranged in air bag, between pressure-strain piston and stressed piston, be connected by connecting rod, allow intracapsular pressure retrain burning pressure maximum and the maximum temperature thereof in cylinder; On air bag, be connected with respectively relief tube, forcing pipe and pressure transducer, on relief tube and forcing pipe, be respectively arranged with normally closed solenoid valve, change intracapsular pressure and meet the different operating conditions needs of internal-combustion engine; Thereby realize the control to combustion heating process, improved the engine cycle thermal efficiency, directly solved the contradiction of internal-combustion engine between energy-conservation and discharge.
2, its flexible firing chamber, reduces the combustion volume of invalid acting, and the ability of increasing combustion engine acting, improves power of IC engine.Pressure-strain piston, air bag and stressed piston that the application comprises, allow intracapsular pressure retrain the initial position of the burning pressure maximum in cylinder, it is the top dead center position that pressure-strain piston is in crank-connecting rod piston, the state that pressure-strain piston displacement is zero volume by existing combustion chambers of internal combustion engines, and under maximum firing pressure and temperature, pressure-strain piston produces maximum combustion stroke volume, the firing chamber that promotes the second piston movement, formation fixed volume with respect to background technique cam rigidity, has formed flexible firing chamber.When pressure-strain piston is got back to initial position at maximum firing pressure and temperature, the combustion volume of generation becomes acting volume, has increased internal-combustion engine acting ability, has thoroughly solved the Iinvalid volume that combustion chambers of internal combustion engines volume can not do work.
3, its Ratios, realizes the running of internal-combustion engine optimum condition, reduces oil consumption.Pressure-strain piston, air bag and stressed piston that the application comprises, allow burning pressure maximum in intracapsular pressure constraint cylinder and the initial position of maximum temperature thereof, it is the top dead center position that pressure-strain piston is in crank-connecting rod piston, the change of the preload pressure of intracapsular pressure to pressure-strain piston initial position, change the pressure maximum of burning, just change compression ratio, compression ratio has been realized in the full condition range of internal-combustion engine variable, realized fuel-economizing in full operating mode.
4, expand combustion in IC engine scope, realized high compression ratio, pluralities of fuel and minimizing harmful products of combustion.Pressure-strain piston, air bag and stressed piston that the application comprises, allow intracapsular pressure retrain burning pressure maximum and the maximum temperature thereof in cylinder, reduce the receptance of the combustion characteristic of existing internal-combustion engine to fuel, reduce the irregular combustion pressure surge scope of existing internal-combustion engine, expand the limit of detonation, increase gasoline air mixture ratio using scope, can improve compression ratio; Allow burning pressure maximum in intracapsular pressure constraint cylinder and the initial position of maximum temperature thereof, it is the top dead center position that pressure-strain piston is in crank-connecting rod piston, now, in budc, combustion in IC engine takes fire, and has increased the combustion oxidation reaction time than existing internal-combustion engine; In the time that pressure-strain piston is got back to initial position at maximum firing pressure and temperature, keep the combustion chemistry reduction reaction of high temperature, increase the combustion chemistry reduction reaction time than existing internal-combustion engine, useful to reducing harmful products of combustion.
Brief description of the drawings
fig. 1 is pressure-strain piston initial position schematic diagram in the utility model.
Fig. 2 be in the utility model piston in top dead center view.
Fig. 3 be in the utility model piston at downstream state schematic diagram.
Fig. 4 is related to schematic diagram with classics heating Ideal Cycle in the utility model.
In figure: piston 1, cylinder 2, cylinder head 3, pressure-strain piston 4, air bag 5, stressed piston 6, gas cylinder 7, connecting rod 8, damping spring 9, normally closed solenoid valve 10, pressure transducer 11, relief tube 12, forcing pipe 13, dunnage 14.
Embodiment
Below in conjunction with brief description of the drawings and embodiment, the utility model is described in further detail.
Referring to Fig. 1, a kind of Dual-piston IC engine, comprise piston 1, cylinder 2, cylinder head 3, pressure transducer 11, pressure-strain piston 4, air bag 5 and stressed piston 6, described cylinder head 3 is arranged on cylinder 2 upper ends, piston 1 lower end is connected with connecting rod, and described connecting rod and bent axle are connected to form piston crank linkage mechanism.Described pressure-strain piston 4, air bag 5 and stressed piston 6 are arranged in cylinder head 3, described air bag 5 is arranged on pressure-strain piston 4 tops, described stressed piston 6 one end are resisted against air bag 5 belows, stressed piston 6 the other ends are connected with pressure-strain piston 4 by connecting rod 8, ensure the to-and-fro motion space of stressed piston 6.Pressure-strain piston 4 is cylindrical, and pressure-strain piston 4 forms combustion in IC engine Heating Cyclic space with to-and-fro motion space and piston 1 that the friction pair of its sealing forms with the to-and-fro motion space that the friction pair of its sealing forms; Stressed piston 6 is cylindrical, and its lifting surface area equates with pressure-strain piston 4 lifting surface areas.Pressure and the swelling pressure that pressure-strain piston 4 effect is the pressure that produces of induction piston 1 compressed mixed gas, combustion process produces also pass to air bag 5 by pressure, air bag 5 is contractile elastic sealed bodies that rubber is made, it has elasticity, rigidity is low, working as air bag 5 internal pressures has less variation, air bag 5 volumes will produce larger distortion, thereby realizes approximate level pressure acting process; When work, by setting different pressure in air bag 5, realize combustion regime, the cycle specificity of combustion motor combustion process and control.On described air bag 5, be connected with respectively relief tube 12 and forcing pipe 13, on described relief tube 12 and forcing pipe 13, be respectively arranged with normally closed solenoid valve 10; Described forcing pipe 13 is connected with the gas cylinder 7 outside cylinder head 3, is inert gas in gas cylinder 7.Described pressure transducer 11 can be arranged on air bag 5, relief tube 12 or forcing pipe 13, but in actual use in order to reduce the sealing surface of air bag 5 as far as possible, pressure transducer 11 is arranged on relief tube 12 or forcing pipe 13 conventionally; In the time that pressure transducer 11 is arranged on relief tube 12 or forcing pipe 13, between should normally closed solenoid valve 10 and air bag 5 on relief tube 12 or forcing pipe 13, described stressed piston 6 belows are provided with damping spring 9, described damping spring 9 upper ends are fixed on stressed piston 6 bottom surfaces, and damping spring 9 lower ends are fixed in the dunnage 14 of cylinder cap 3; Damping spring 9 has been alleviated the impact force of stressed piston 6 and pressure-strain piston 4 countercylinder lids 3.
Referring to Fig. 1-Fig. 4, when work, the maximum combustion pressure value according to internal combustion engine operation in different operating modes
p 3 , this pressure determines in engine conditions control system, sets air bag 5 internal pressure values to be
p 3 , maximum combustion pressure value herein
p 3 for the force value of 3 in Fig. 4; It is to realize pressure setting and the adjusting of air bag 5 by the normally closed solenoid valve 10 on pressure transducer 11 and forcing pipe 13 or relief tube 12 that air bag 5 internal pressures are set, thereby realizes the maximum combustion pressure control under the different operating modes of internal-combustion engine.Concrete operating conditions process is as follows: one, after the needed maximum combustion pressure of internal combustion engine operation operating mode is determined, electronic control unit is opened the normally closed solenoid valve 10 on forcing pipe 13, the inert gas that gas cylinder is 7 li enters air bag 5, pressure in air bag 5 is raise, when sensing air bag 5 internal pressures, pressure transducer 11 is elevated to after scheduled pressure value, electronic control unit is closed the normally closed solenoid valve 10 on forcing pipe 13, and air bag 5 by stressed piston 6, connecting rod 8 to 4 precompressed of pressure-strain piston, thereby control maximum combustion pressure in cylinder.Two, when the operating mode of internal-combustion engine change, need to improve maximum combustion pressure time, electronic control unit is opened the normally closed solenoid valve 10 on forcing pipe 13, high-pressure inert gas in gas cylinder 7 injects air bag 5 through forcing pipe 13, thereby has improved the pressure in air bag 5; In the time that pressure transducer 11 senses that air bag 5 internal pressures reach setting value, electronic control unit is closed the normally closed solenoid valve 10 on forcing pipe 13.Three, when the operating mode of internal-combustion engine change, need to reduce maximum combustion pressure time, electronic control unit is opened the normally closed solenoid valve 10 on relief tube 12, makes to allow the inert gas in air bag 5 release through relief tube 12, thereby has reduced the gas pressure in air bag 5; In the time that pressure transducer 11 senses that air bag 5 internal pressures reach setting value, electronic control unit is closed the normally closed solenoid valve 10 on relief tube 12.
In the time that internal-combustion engine is worked under a definite operating mode, in each Heating Cyclic process, the interior maximum combustion pressure value of air bag 5
p 3 just definite, change little and volume-variation feature greatly according to pressure in air bag 5 change procedures, when air bag 5 internal pressure change of state are less, can be considered as when relatively constant, make pressure-strain piston 4 produce larger stroke, meet the essential characteristic of level pressure Heats up the combustion control, the maximum combustion pressure of controlling in cylinder keeps relatively constant, thus controlling combustion engine combustion heating recurrent state and cycle specificity thereof.Concrete burning control procedure is as follows:
One, referring to Fig. 1, Fig. 4, the Heating Cyclic process that 1-2-3-4-5-1 is traditional combustion engine in Fig. 4,1 corresponding lower dead center that represents that piston 1 moves in Fig. 4,2 corresponding top dead centers that represent, the volume at C place is the volume of piston 1 at top dead center, also for the combustion chamber volume of traditional combustion engine is
v c .In Fig. 1, piston 1 initial position starts mixed pressure compression process in bottom dead center position and by lower dead center, and pressure-strain piston 4 initial positions are in the top dead center position of piston 1, and now in corresponding diagram 4, pressure-strain piston 4 positions are by pressure
p-volume
vsystem of coordinates moves to C point from 0, and 0 overlaps with C point, the combustion chamber volume of traditional combustion engine in Fig. 4 is changed into
v c =0.Before piston 1 compressed homogenous mixed gas is to 2 in Fig. 4, because the pressure of piston 1 compressed homogenous mixed gas is less than air bag 5 interior settings
p 3 , herein
p 3 be 3 pressure of locating in Fig. 4, now the pressure-strain piston 4 in Fig. 1 is in top dead center position and remains unchanged.In the time that piston 1 compressed homogenous mixed gas approaches top dead center, in corresponding diagram 4, compression approaches before 2, the combustion chamber volume that the space that now piston 1 of Fig. 1 forms to top dead center is budc, in the time that the pressure and temp of now compressed mixed gas generation reaches spontaneous combustion, homogeneous charge starts initiation combustion, and piston 1 continues compression simultaneously, has increased combustion temperature, promote rapid combustion, improved fuel availability; The pressure that now combustor inner cylinder produces does not reach the pressure of air bag 5 interior settings
p 3 , pressure-strain piston 4 is still in top dead center position and remains unchanged, the swept volume of pressure-strain piston 4 be in zero, Fig. 4 pressure-strain piston 4 positions still by pressure
p-volume
v0 of system of coordinates remains on C point place, and piston 1 approaches top dead center C place, the volume forming at C point place with pressure-strain piston 4 is combustion chamber volume, because of combustion chamber volume very little, velocity of combustion is fast, and the time is short, is approximately 2 burnings of locating, combustion process in cylinder can be the constant volume combustion process of (2-3) at 2 o'clock to 3 o'clock in Fig. 4, is the burning of piston 1 in budc.
Two, referring to Fig. 2, Fig. 4, in Fig. 2, piston 1 is in the top dead center place of stroke, and air bag 5 is compressed, and pressure-strain piston 4 leaves the top dead center position of piston 1 fast, produces variable combustion chamber volume, is that piston 1 is in C point place in Fig. 4.The now firing pressure in cylinder, in Fig. 4, because of the rigidity feature of air bag 5, pressure-strain piston 4 is controlled at 3 and locates
p 3 state remains unchanged, and along with the rapid rising of combustion temperature produces swept volume, burning control procedure is 3 constant-pressure heating process to Z point (3-Z point), be pressure-strain piston 4 swept volume by zero to
v c increase process, air bag 5 produces the endergonic process of distortion.In this process, when combustor inner cylinder pressure is higher than the pressure of air bag 5 interior settings
p 3 time, or be greater than in Fig. 4 the combustion temperature of 3, and now the pressure-strain piston 4 in Fig. 2 moves up, and air bag 5 has little pressure difference because its elastic stiffness is little, is out of shape large approximate level pressure
p 3 deformation process feature, pressure-strain piston 4 produces larger swept volume, and combustor inner cylinder heat is produced and expand, be mechanical energy by thermal power transfer, keep pressure
p 3 constant, suppress temperature and raise; The volume that pressure-strain piston 4 produces, in Fig. 4, original 0 overlaps with C point, make 0 leave C point, the volume that C is ordered is increased.Because level pressure heating flame process is low with respect to constant volume heating flame process combustion temperature, control maximum combustion temperature, reduce the generation of high temperature unwanted combustion thing, reduce exhaust pollution.In this process corresponding diagram 4, show pressure
p-volume
vthe process that coordinate origin 0 is moved to the left by C point, starts to occur the area of C-3-Z-0-C, is also the process of C-3-Z-0-C area change.
Three, referring to Fig. 3, Fig. 4, when piston 1, to cross atdc descending, and burning is proceeded, now the pre-expansion combustion process of 3 o'clock to 4 o'clock (3-4 process) in corresponding diagram 4.In this process, combustion temperature continues to raise, and promotes in the middle of the process of Fig. 3 pressure-strain piston 4 3-Z in Fig. 4, and close to Z point, pressure-strain piston 4 keeps inner cylinder pressure
p 3 constant, continue to move up, stroke increases, and volume increases, and air bag 5 continues to add large deformation; And the downward volume of piston 1 also increase, now in Fig. 4, piston 1 is in the middle of the process of 3-4, the volume of burning expansion by 3 o'clock to increase in 4 o'clock; Firing pressure in cylinder and temperature, because being subject to, the descending volume of piston 1 atdc increases externally acting and pressure-strain piston 4 is subject to air bag 5 elastic stiffness controls, keeps pressure
p 3 constant, pressure-strain piston 4 swept volumes are increasing, and continue to absorb heat energy, make the area change of C-3-Z-0-C, and 0 of promotion pressure p-volume V coordinate origin continues to leave C point and is moved to the left.
In the time that piston 1 runs to 4 in Fig. 4, burning completes substantially, and combustion temperature is the highest, and in Fig. 3, maximum combustion temperature expands and promotes the volume that pressure-strain piston 4 produces
v c maximum, combustor inner cylinder pressure is still subject to air bag 5 rigidity effects, is controlled at
p 3 state under, now pressure in Fig. 4
p-volume
vit is maximum that 0 of coordinate origin leaves C point distance, continues to be moved to the left to stop, and locates the pressure in the air bag 5 in Fig. 3 at 4
p 3 equate with the pressure that the burning in cylinder produces by stressed piston 6, connecting rod 8 and pressure-strain piston 4, balance, be also
p 3 .
After piston 1 runs to 4 in Fig. 4 time, in Fig. 3, pressure-strain piston 4 is along with piston 1 moves downward, and pressure-strain piston 4 reduces the volume that early stage, burning produced
v c , make up the volume of piston 1 descending increase, keep piston 1 volume of 4 in Fig. 4
v 4 constant.Because of in Fig. 4, pressure-strain piston 4 burnt in control procedure in early stage, compressing gasbag 5, and the acting ability of the C-3-Z-0-C obtaining is to keep pressure
p 3 constant, the volume of generation
v c , when piston 1 is in Fig. 4 after 4, the volume in cylinder increases, pressure lower than
p 3 time, the pressure in air bag 5
p 3 the balance of setting up by stressed piston 6, connecting rod 8 and pressure-strain piston 4 and the pressure in cylinder is broken, air bag 5 internal pressures
p 3 the pressure that will maintain in cylinder reaches balance, promotes pressure-strain piston 4 descending, maintains piston 1 in Fig. 4 the cylinder volume of 4
v 4 , the cylinder pressure and air bag 5 pressure that remain at 4 equate, inner cylinder pressure is reached
p 3 , because there is no thermal loss, kept in Fig. 4 the temperature of 4 to remain unchanged.Now pressure in Fig. 4
p-volume
vsystem of coordinates, with the volume reducing of pressure-strain piston 4,0 beginning of coordinate origin is close to C point.
When pressure-strain piston 4 volume reducing are to zero time, get back to the initial position of pressure-strain piston 4, now pressure in Fig. 4
p-volume
vcoordinate origin 0 overlaps with C point, stops mobile.Combustion regime and combustion characteristic control thereof in the circulation of the utility model combustion motor heating flame finish.Piston 1 has started the inflation process that the 4-5 in Fig. 4 is ordered, and exhaust and air inlet 5-1 process, until before compression 1-2 crosses and burn, the utility model does not produce any effect.
In the utility model under a definite operating mode, to set maximum combustion pressure
p 3 control, piston 1 budc and after carry out, be the swept volume that produces by pressure-strain piston 4 by 0 to
v c , then by
v c to 0 independent variation, combine with the connecting rod operation of piston 1, realize the control to combustion heating circulation, solve the contradiction of internal-combustion engine between energy-conservation and discharge, produce multiple effect, specifically comprise as follows: one, make the invalid acting volume in traditional combustion engine firing chamber change acting volume into, on the basis of traditional combustion engine Heating Cyclic, obtained the useful work of C-3-Z-0-C in Fig. 4, improve the thermal efficiency of internal-combustion engine Heating Cyclic, improved internal-combustion engine acting ability; Two, realize the state of pressure and temp and the pressure maximum control of pressure and temp change procedure feature to Heating Cyclic burning, solve the control problem of discharge burning maximum temperature, reduce the receptance to fuel combustion characteristics, improved knock limit, increased compression ratio; Three, budc the finish maintenance of temperature of atdc of burning that takes fire, has increased the combustion chemistry reaction recovery time, has reduced burning harmful substance; Four, realizing the process that in Fig. 4, pressure p-volume V system of coordinates moves around, is the combustion process phase place process that changes, thereby has increased the degrees of freedom that burning is controlled.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the engineers and technicians of technical field under the utility model, without departing from the concept of the premise utility, can also make some simple deduction or replace, said structure all should be considered as belonging to protection domain of the present utility model.
Claims (4)
1. a Dual-piston IC engine, comprise piston (1), cylinder (2), cylinder head (3), described cylinder head (3) is arranged on cylinder (2) upper end, piston (1) lower end is connected with connecting rod, described connecting rod and bent axle are connected to form piston crank linkage mechanism, it is characterized in that: also include pressure transducer (11), pressure-strain piston (4), air bag (5) and stressed piston (6), described pressure-strain piston (4), air bag (5) and stressed piston (6) are arranged in cylinder head (3), described air bag (5) is arranged on pressure-strain piston (4) top, described stressed piston (6) one end is resisted against air bag (5) below, stressed piston (6) the other end is connected with pressure-strain piston (4) by connecting rod (8), on described air bag (5), be connected with respectively relief tube (12) and forcing pipe (13), on described relief tube (12) and forcing pipe (13), be respectively arranged with normally closed solenoid valve (10).
2. a kind of Dual-piston IC engine according to claim 1, it is characterized in that: described stressed piston (6) below is provided with damping spring (9), described damping spring (9) upper end is fixed on stressed piston (6) bottom surface, and damping spring (9) lower end is fixed in the dunnage (14) of cylinder cap (3).
3. a kind of Dual-piston IC engine according to claim 1, it is characterized in that: described pressure transducer (11) is arranged on air bag (5), or pressure transducer (11) is arranged on forcing pipe (13) and goes up and be positioned between normally closed solenoid valve (10) and air bag (5), or pressure transducer (11) is arranged on relief tube (12) and goes up and be positioned between normally closed solenoid valve (10) and air bag (5).
4. a kind of Dual-piston IC engine according to claim 1, is characterized in that: described forcing pipe (13) gas cylinder (7) outer with cylinder head (3) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420154728.5U CN203756332U (en) | 2014-04-02 | 2014-04-02 | Double-piston internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420154728.5U CN203756332U (en) | 2014-04-02 | 2014-04-02 | Double-piston internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756332U true CN203756332U (en) | 2014-08-06 |
Family
ID=51251617
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| CN201420154728.5U Withdrawn - After Issue CN203756332U (en) | 2014-04-02 | 2014-04-02 | Double-piston internal combustion engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953437A (en) * | 2014-04-02 | 2014-07-30 | 孙大林 | Double-piston internal combustion engine |
-
2014
- 2014-04-02 CN CN201420154728.5U patent/CN203756332U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953437A (en) * | 2014-04-02 | 2014-07-30 | 孙大林 | Double-piston internal combustion engine |
| CN103953437B (en) * | 2014-04-02 | 2016-09-21 | 孙大林 | A kind of Dual-piston IC engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20160921 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |