CN107201946A - Engine and its control method - Google Patents

Abstract

The invention discloses a kind of engine and its control method, the engine includes cylinder, the first piston being arranged in the cylinder and second piston, and the inner chamber of the cylinder is divided into the first side inner chamber, middle inner chamber and the second side inner chamber by the first piston and the second piston successively.It is arranged such, the engine that the present invention is provided, its power output is relatively stable, and power output is higher.

Description

Engine and its control method

Technical field

The present invention relates to combustion engine mechanical field, more specifically to a kind of engine and its controlling party Method.

Background technology

At present, the reciprocating Thermal Motor of single cylinder has four-stroke engine and two-stroke engine, but they Externally acting is only occurred in during one of them heating power, that is, expands workmanship process, and other processes are as inhaled Gas, exhaust, compression process, the power of piston are maintained all by flying wheel.Although what multi-cylinder was combined starts Machine can make engine shaft tend to continuous output work, but for single-cylinder engine, he is discontinuous , there is larger fluctuation, and engine power also receives the limitation of number of stroke in theory.With starting Machine demand is increasingly minimized with high-power, it is necessary to which the drawbacks of available engine is present does further thin Change and improve.

The content of the invention

In view of this, it is an object of the invention to provide a kind of engine, its power output is relatively stable, And power output is higher.The present invention also aims to provide the control method of above-mentioned engine, this method The power output of engine can be made relatively stable, and power output is higher.

A kind of engine that the present invention is provided, including cylinder, the first piston that is arranged in the cylinder and The inner chamber of the cylinder is divided into first by second piston, the first piston and the second piston successively Side inner chamber, middle inner chamber and the second side inner chamber.

Preferably, the cylinder is provided with first row gas port and second exhaust port；When first side inner chamber and When second side inner chamber is expanded to maximum simultaneously, the first row gas port and the second exhaust port are one by one It is corresponding to communicate and separated with the middle inner chamber with first side inner chamber and second side inner chamber； When the middle inner chamber is expanded to maximum, the first row gas port and the second exhaust port with it is described in Between inner chamber communicate and separated with first side inner chamber and second side inner chamber.

Preferably, along the direction of first side inner chamber to second side inner chamber, the first row gas port And the second exhaust port is arranged between 1/4~3/4 position of cavity length.

Preferably, the first row gas port is arranged between 1/4~1/3 position of cavity length, and described Two exhaust outlets are arranged between 2/3~3/4 position of cavity length.

Preferably, corresponded in the cavity wall of first side inner chamber, middle inner chamber and second side inner chamber It is provided with atomizer, air nozzle and spark plug.

Preferably, the injection direction of the atomizer and the air nozzle is along the inner periphery of the cylinder Tangential direction.

Preferably, the atomizer and the air nozzle spray to the center position of the cylinder.

Preferably, the spark plug is arranged on the position that oil gas is mixed at first.

Preferably, the atomizer that is correspondingly arranged with first side inner chamber and second side inner chamber, jet Mouth and spark plug, be provided entirely on the side wall of the cylinder, be provided entirely on the end cap of the cylinder, Or at least one is arranged on other on the side wall of the cylinder be arranged on the end cap of the cylinder；With institute Atomizer, air nozzle and spark plug that middle inner chamber is correspondingly arranged is stated to be all disposed within the side wall of the cylinder.

Preferably, the volume sum of first side inner chamber and second side inner chamber is equal in the centre Chamber it is easy, and the distributive value of the middle inner chamber is first side inner chamber and second side inner chamber 1.5-2.5 times of distributive value sum

Present invention also offers a kind of control method of engine, based on the engine described in as above any one, Including step：

The fuel of intracavitary burns simultaneously in first side inner chamber and second side produces expansive force, to push away Move the first piston and the second piston compresses the middle inner chamber simultaneously；

The fuel combustion of intracavitary produces expansive force in the centre, to promote the first piston and described the Two pistons are moved to both sides direction simultaneously.

In the technical scheme that the present invention is provided, first piston and second piston are provided with a cylinder, The inner chamber of cylinder is divided into the first side inner chamber, middle inner chamber and second by first piston and second piston successively Side inner chamber.Wherein, first piston can be promoted to do work during the fuel combustion of intracavitary in the first side, second In side during the fuel combustion of intracavitary, second piston can be promoted to do work, during the fuel combustion of middle inner chamber, First piston and second piston can be promoted to do work simultaneously.The engine that the present invention is provided, can control its The fuel of intracavitary burns simultaneously in side inner chamber and the second side produces expansive force, to promote first piston and the Two pistons compress middle inner chamber simultaneously；The expansive force produced in the middle of then controlling during the fuel combustion of intracavitary, To promote first piston and second piston while being moved to both sides direction.It is arranged such, first piston and During two reciprocating motions of the pistons, each motion of two pistons is all to be done work to promote by thermal expansion, is output as Continuous output, fluctuation is smaller, and the power per cylinder of the engine of the type is higher.

Brief description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to reality The accompanying drawing used required for applying in example or description of the prior art is briefly described, it should be apparent that, below Accompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art, On the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is that atomizer in the specific embodiment of the invention and air nozzle are all disposed within showing when on cylinder wall It is intended to；

Fig. 2 is that atomizer in the specific embodiment of the invention and air nozzle are all disposed within showing when in cylinder head It is intended to；

Fig. 3 is the first side inner chamber in the specific embodiment of the invention and the air nozzle in the second side inner chamber, oil spout Mouth and spark plug are all arranged on the structural representation in cylinder head；

Fig. 4 is the first side inner chamber in the specific embodiment of the invention and the air nozzle in the second side inner chamber, oil spout The structural representation of mouth and spark plug all on the side wall of cylinder；

Fig. 5 is the first side inner chamber in the specific embodiment of the invention and the air nozzle in the second side inner chamber, oil spout Mouth is arranged on the structural representation that the side wall of cylinder, spark plug are arranged in cylinder head；

Fig. 6 is respectively mounted for air nozzle, atomizer and spark plug in middle inner chamber in the specific embodiment of the invention Structural representation on the side wall of middle inner chamber；

In Fig. 1-Fig. 6：

First piston -- 11, second piston -- 12, cylinder -13, the first side inner chamber -14, middle inner chamber -- 15, Second side inner chamber -16, the first drive link -17, the second drive link -18, the first crank connecting link -- 19, Two crank connecting link -20, cylinder head -21, first row gas port -22, second exhaust port -23.

Embodiment

The core of present embodiment is to provide a kind of engine, and its power output is relatively stable, and Power output is higher.

Hereinafter, embodiment is illustrated referring to the drawings.In addition, embodiments illustrated below is not to right It is required that the described content of the invention plays any restriction effect.In addition, composition represented by example below Full content is not limited to necessary to the solution as the invention described in claim.

Refer to Fig. 1-Fig. 2, the engine that present embodiment is provided, it can continuously expand workmanship, The engine loads first piston 11 and second piston 12, first piston 11 and second in a cylinder 13 Piston 12 by the inner chamber of cylinder 13 be separated into three separate small cylinder inner cavities, i.e. the first side inner chamber 14, The middle side inner chamber 16 of inner chamber 15 and second.

It should be noted that cylinder 13 can be linear pattern in present embodiment, arc is alternatively certainly The structures such as shape, V-type, only need to ensure that first piston 11 and second piston 12 in the suitable of the inner chamber of cylinder 13 Profit is slided.Engine can be exported by transmission mechanism and done work, such as, first piston 11 and second Piston 12 can be connected respectively the first drive link 17 and the second drive link 18, the first drive link 17 and The other end of two drive links 18 has been connected respectively the first crank connecting link 19 and the second crank connecting link 20, its In the first drive link 17 and the second drive link 18 need to realize that sealing is slided between the cylinder head 21 of cylinder 13 Coordinate.

During fuel combustion in middle inner chamber 15, middle inner chamber 15 expands, and can promote the He of first piston 11 Second piston 12 is moved to both sides direction, to compress the first side inner chamber 14 and the second side inner chamber 16.Work as both sides The first side inner chamber 14 and the second side inner chamber 16 in fuel combustion when, in the first side inner chamber 14 and the second side Chamber 16 expands simultaneously, and then promotes first piston 11 and second piston 12 to be moved to middle direction, to compress Middle inner chamber 15, during work, first piston and second piston are in minute surface symmetric motion.So constitute work The reciprocation cycle motion of plug, the power output during this is all by thermal expansion forces, reality Existing engine shaft is steadily exported under relatively high power, while reducing impact and fluctuating, reduces the chi of flying wheel It is very little, reduce the quality and volume of engine；Also so that single engine is provided simultaneously with two axles, and two The rotating speed and shaft power of axle are equal.

Certainly, the engine that present embodiment is provided, also can as follows be controlled, can be controlled first Fuel combustion in first side inner chamber 14 produces expansive force, to promote first piston and second piston to compression The direction motion of second side inner chamber, after extreme position is moved to, the fuel combustion production of intracavitary in the second side Raw expansive force, to promote second piston or the first piston cavity direction into the first side to compress, such circulating It is dynamic.Certainly, the control of the engine can be also realized otherwise, such as, according to actual conditions control Single piston movement is made, or two pistons of control are moved simultaneously.

In present embodiment, the side wall of cylinder 13 is provided with first row gas port 22 and second exhaust port 23； When the first side inner chamber 14 and the second side inner chamber 16 are expanded to maximum simultaneously, first row gas port 22 and second row Gas port 23 communicated correspondingly with the first side inner chamber 14 and the second side inner chamber 16 and with middle inner chamber 15 every Open, the waste gas after being burnt in the first side inner chamber 14 and the second side inner chamber 16 is discharged, and ensures in centre Fuel to be combusted in chamber 15 is compressed；When middle inner chamber 15 is expanded to maximum, the He of first row gas port 22 Second exhaust port 23 is communicated with middle inner chamber 15 and separated with the first side inner chamber 14 and the second side inner chamber 16, So that the waste gas in middle inner chamber 15 to be discharged, and ensure treating in the first side inner chamber 14 and the second side inner chamber 16 Burning fuel can be compressed.

Preferably, along the bearing of trend of the inner chamber of cylinder 13, first row gas port 22 and second exhaust port 23 are set Put between the 1/4~3/4 of cavity length position.

Further, first row gas port 22 is arranged between 1/4~1/3 position of cavity length, second row Gas port 23 is arranged between 2/3~3/4 position of cavity length.In this way, farthest avoiding centre Inner chamber 15 expands not exclusively and causes the waste of fuel.

In addition, it is necessary to explanation, the engine that present embodiment is provided can be fuel engines, Certainly or gas engine, or, can be compression ignition engine, or spark ignitor formula Engine.Content, starts by taking spark ignitor formula as an example to present embodiment offer herein below Machine describes in detail.

First side inner chamber 14, middle inner chamber 15 and second each all are equipped with atomizer and jet in side inner chamber 16 Mouth and spark plug.

Atomizer, air nozzle and the spark plug being correspondingly arranged with the first side inner chamber 14 and the second side inner chamber 16, It can be provided entirely on the side wall of cylinder or be provided entirely on the end cap of the cylinder or extremely Few one is arranged on other on the side wall of cylinder be arranged on the end cap of cylinder；It is corresponding with middle inner chamber 15 to set Atomizer, air nozzle and the spark plug put are all disposed within the side wall of cylinder 13.

Fig. 3-Fig. 6 is refer to, present embodiment is for two sides inner chamber and the different positions of middle inner chamber 15 Put and devise atomizer, air nozzle and the possible installation site of spark plug, and by A-B-C preference rankings from upper To lower arrangement, wherein, in Fig. 3-Fig. 6, most preferably grade is the mounting means shown in A grades.

In figure, atomizer, air nozzle and spark plug use x, y, z to represent respectively；Oil spout and jet direction are such as Shown in arrow.Wherein, the atomizer of middle inner chamber 15, air nozzle, spark plug are mounted in cylinder 13 On wall；In its preference ranking scheme, otherwise A grades represent oil spout and the tangential spray of all oblique circumference of jet Penetrate mixing；All mixed towards central-injection；Spark plug is disposed at mist of oil and air mixing at first；More Specifically, when oil spout and jet are all sprayed for oblique circumference same direction (shown in the figure of the A grades left side) It is required that the direction of oil spout is closer to inner side, and jet direction close to outside, i.e. jet direction as far as possible along Madial wall；To ensure mist of oil after-flame as far as possible in the range of the parcel of air.B grades represent atomizer and jet Mouth is arranged on the opposite position of cylinder 13；Or such a method is also sideling to be sprayed towards the tangential of circumference, Sprayed at towards medial axis；Wherein, the situation as shown in the left side, spark plug is arranged on the two and sprayed Penetrate the centre position in direction；And the right figure is then arbitrarily installed.C grades are a kind of B grades of situation, and it represents spray Oil and jet all along the wall of cylinder 13, and all by same clockwise spray, this kind of method be it is feasible, Simply mixing velocity is not so good as the first two grade soon, influences burning velocity；Spark plug is arranged on atomizer and sky The segment distance of gas jets front end one, but it is few and not exclusively fire that oily many gas are likely to result in before the oil spout Burn.

It is more flexible that atomizer, air nozzle and the spark plug of two sides inner chamber are installed, and can all install In side wall, the wall of cylinder 13 and cylinder can also can also be separately mounted to all in cylinder head 21 On lid 21.

It is as shown in Figure 4 for situation all on the wall of cylinder 13, such case and middle cylinders 13 Installation is the same, is repeated no more here.

It is as shown in Figure 3 for all installed in cylinder cover when situation, this mode is also routinely to start at present The mounting means of machine.Wherein A grades represents that atomizer, air nozzle and spark plug are arranged on what is be all closer to each other Position, left figure represents that oil spout and jet directly spray to the situation of cylinder 13, and spark plug is arranged on and mixed at first At conjunction；Right figure represents that oil spout and jet are sprayed towards unidirectional side wall, and spark plug is arranged at first At mixing.

As shown in figure 5, the peace of the mounting means only spark plug on such a mounting means and above-mentioned middle inner chamber 15 Holding position has been changed into cylinder head 21, and other main points are the same, are repeated no more here.

Present embodiment additionally provides a kind of control method of engine, based on as above specific embodiment party Engine described in formula, including step：

The fuel of intracavitary burns simultaneously in first side inner chamber and second side produces expansive force, to push away Move the first piston and the second piston compresses the middle inner chamber simultaneously；

The fuel combustion of intracavitary produces expansive force in the centre, to promote the first piston and described the Two pistons are moved to both sides direction simultaneously.

In this way, the control method for the engine that present embodiment is provided, can make the output of engine Power is relatively stable, and power output is higher.

In addition, requiring that fluid and air are in high pressure conditions in this programme, pressure is more than cylinder when spraying into Pressure, to facilitate penetrating cylinder, cylinder pressure now is greater than atmospheric pressure, so needing air first Being compressed into high pressure conditions could spray into；

And first the volume sum of side inner chamber 14 and the second side inner chamber 16 be equal to the appearance of the middle inner chamber 15 Product so that the fuel straying quatity of two ends cylinder is identical, but the distributive value of middle inner chamber 15 is theoretically the 1.5-2.5 times of the distributive value sum of the side inner chamber 16 of side inner chamber 14 and second.

The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use The present invention.A variety of modifications to these embodiments will be aobvious and easy for those skilled in the art See, generic principles defined herein can without departing from the spirit or scope of the present invention, Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, And it is to fit to the most wide scope consistent with features of novelty with principles disclosed herein.

Claims (11)

1. a kind of engine, it is characterised in that including cylinder (13), be arranged at the cylinder (13) Interior first piston (11) and second piston (12), the first piston (11) and described second are lived The inner chamber of the cylinder (13) is divided into the first side inner chamber (14), middle inner chamber by plug (12) successively And the second side inner chamber (16) (15).

2. engine as claimed in claim 1, it is characterised in that the cylinder (13) is provided with first Exhaust outlet (22) and second exhaust port (23)；When first side inner chamber (14) and second side Inner chamber (16) is while when being expanded to maximum, the first row gas port (22) and the second exhaust port (23) Communicate correspondingly with first side inner chamber (14) and second side inner chamber (16) and with institute Middle inner chamber (15) is stated to separate；When the middle inner chamber (15) is expanded to maximum, the first row Gas port (22) and the second exhaust port (23) communicated with the middle inner chamber (15) and with it is described First side inner chamber (14) and second side inner chamber (16) are separated.

3. engine as claimed in claim 2, it is characterised in that along first side inner chamber to described The direction of second side inner chamber, the first row gas port (22) and the second exhaust port (23) are arranged on Between 1/4~3/4 position of cavity length.

4. engine as claimed in claim 3, it is characterised in that the first row gas port (22) sets Put between the 1/4~1/3 of cavity length position, the second exhaust port (23) is arranged on cavity length 2/3~3/4 position between.

5. the engine as described in claim any one of 1-4, it is characterised in that first side inner chamber (14), it is correspondingly arranged on spray in the cavity wall of middle inner chamber (15) and second side inner chamber (16) Oil nozzle, air nozzle and spark plug.

6. engine as claimed in claim 5, it is characterised in that the atomizer and the air nozzle Injection direction along the cylinder (13) inner periphery tangential direction.

7. engine as claimed in claim 5, it is characterised in that the atomizer and the air nozzle Sprayed to the center position of the cylinder (13).

8. engine as claimed in claim 5, it is characterised in that the spark plug is arranged on oil gas most The position first mixed.

9. engine as claimed in claim 5, it is characterised in that with first side inner chamber (14) Atomizer, air nozzle and the spark plug being correspondingly arranged with second side inner chamber (16), are provided entirely in On the side wall of the cylinder or be provided entirely on the end cap of the cylinder or at least one setting It is other on the side wall of the cylinder to be arranged on the end cap of the cylinder；With the middle inner chamber (15) Atomizer, air nozzle and the spark plug being correspondingly arranged are all disposed within the side wall of the cylinder (13).

10. engine as claimed in claim 1, it is characterised in that first side inner chamber (14) and The volume sum of second side inner chamber (16) is equal to the volume of the middle inner chamber (15), and described The distributive value of middle inner chamber (15) is first side inner chamber (14) and second side inner chamber (16) 1.5-2.5 times of distributive value sum.

11. a kind of control method of engine, it is characterised in that based on such as any one of claim 1-8 institutes The engine stated, including step：

The fuel of intracavitary burns simultaneously in first side inner chamber and second side produces expansive force, to push away Move the first piston and the second piston compresses the middle inner chamber simultaneously；

The fuel combustion of intracavitary produces expansive force in the centre, to promote the first piston and described the Two pistons are moved to both sides direction simultaneously.