阅读说明：本技术 一种双活塞杠杆高效发动机及其做功控制方法 (A kind of double-piston lever high efficience motor and its control method of doing work ) 是由 杜申记 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种双活塞杠杆高效发动机,包括发动机缸体,所述发动机缸体内设置有曲轴,所述曲轴通过一连杆连接一本活塞,所述发动机缸体的内还设置有一顶活塞,所述顶活塞通过一凸轮轴机构驱动。本发动机在做功冲程开始时,活塞在上止点位置,这时不具备做功条件(燃料不开始燃烧),曲轴在惯性的作用下带动本活塞开始向下止点运行,同时同步凸轮轴机构开始加速推动顶活塞向下推过来。曲轴达到设定的角度时,顶活塞加速推行到近端位置,两个活塞之间形成一个密闭、狭小的压缩空间,同时燃料瞬间燃烧产生最大的压力(推力),推动本活塞向下运行,同步曲轴有一定的角度,就会产生一个杠杆效应,把最大的推力高效的转化成旋转的动能输出。(The invention discloses a kind of double-piston lever high efficience motors, including engine cylinder body, crankshaft is provided in the engine cylinder body, the crankshaft connects a piston by a connecting rod, a top piston is additionally provided in the engine cylinder body, the top piston is driven by a camshaft mechanism.This engine is when expansion stroke starts, piston is in top dead center position, at this moment do not have acting condition (fuel does not start to burn), crankshaft drives this piston to start to run to lower dead center under the action of inertia, while synchronous cam axis mechanism starts to accelerate to push top piston to push down on.When crankshaft reaches the angle of setting, piston is pushed up to accelerate to carry out arriving proximal location, a closed, narrow compression space is formed between two pistons, fuel moment burning simultaneously generates maximum pressure (thrust), this piston is pushed to run down, synchronous crankshaft has certain angle, will generate a leverage, and the kinetic energy that maximum thrust is efficiently converted to rotation is exported.)

1. a kind of double-piston lever high efficience motor, including engine cylinder body (1), the engine cylinder body (1) is interior to be provided with song Axis (2), the crankshaft (2) connect a piston (4) by a connecting rod (3), it is characterised in that: the engine cylinder body (1) It is inside additionally provided with a top piston (5), the top piston (5) is driven by a camshaft mechanism.

2. double-piston lever high efficience motor according to claim 1, it is characterised in that: the camshaft mechanism includes one Camshaft (6), the camshaft (6) are driven by a spiral variable diameter driven gear (7), the spiral variable diameter driven gear (7) by The driving of one spiral variable diameter driving wheel (8), the spiral variable diameter driving wheel (8) are driven by a conversion gear (9), the conversion gear (9) it is driven by a crankshaft toothed wheel (10), the crankshaft toothed wheel (10) is arranged on the crankshaft (2).

3. double-piston lever high efficience motor according to claim 2, it is characterised in that: the crankshaft toothed wheel (10) and institute The rotating ratio for stating conversion gear (9) is 2:1.

4. double-piston lever high efficience motor according to claim 2, it is characterised in that: the camshaft (6) and a rolling It takes turns (501) closely to contradict, the idler wheel (501) is spindle rotationally arranged on a rolling wheel support (11), the rolling wheel support (11) Bottom end be connected top piston rod (502), the top piston rod (502) connect with the top piston (5).

5. double-piston lever high efficience motor according to claim 4, it is characterised in that: the camshaft mechanism further includes One recessed wheel assemblies, the recessed wheel assemblies include a pair of of concave wheel disk (1201) that a pair is fixed on a shaft (1203), In A pair of symmetrical groove (1202), the rolling wheel support (11) are offered on the opposing end surface of a pair of of concave wheel disk (1201) Between a pair of of concave wheel disk (1201), it is recessed that the two stands of the rolling wheel support (11) are respectively erected in described a pair In slot (1202)；The camshaft (6) is fixed on the shaft (1203), positioned at a pair of of concave wheel disk (1201) it Between, the recessed wheel assemblies connect the spiral variable diameter driven gear (7) by the shaft (1203).

6. double-piston lever high efficience motor according to claim 5, it is characterised in that: the flute profile of the groove (1202) Match with the outer profile of the camshaft (6).

7. double-piston lever high efficience motor according to claim 1, it is characterised in that: the engine cylinder body (1) two Side offers an inlet valve (101) and an exhaust valve (102), the inlet valve (101) and the exhaust valve (102) connection respectively To the valve actuating mechanism of the engine, the inlet valve (101) and the exhaust valve (102) are located at described piston (5) Top position when in top dead center position；The top dead center position refers to that described piston (5) can be moved in cylinder body Highest point position.

8. a kind of acting control method of double-piston lever high efficience motor, which comprises the following steps:

Step 1) intake stroke,

In the top dead center position, the crankshaft (2) rotates described piston (4) under the action of external force inertia, drives institute It states this piston (4) to run down, the top piston (5) is maintained at remote location at this time；The inlet valve (101) is opened, sucking Air and fuel are until described piston (4) is moved to bottom dead center position, and the inlet valve (101) is closed, intake stroke knot Beam；

Step 2 compression stroke,

The crankshaft (2) rotates under the action of inertia, pushes described piston (4) to run up, at this time the top piston (5) It is still remained unchanged in remote location, compresses the gas of sucking, until described piston (4) is moved to top dead center position, compression Stroke terminates；

Step 3) expansion stroke,

The crankshaft (2) rotates under the action of inertia, drives described piston (4) to run down, at this time the camshaft machine Structure is synchronous simultaneously to push top piston (5) the proximal position acceleration to push away, when the crankshaft (2) rotates to an angle, The top piston (5) also carry out to proximal location by sync plus white；It is formed when between the top piston (5) and described piston (4) When closed, narrow compression space, while the burning of fuel moment generates high pressure, high-temperature gas, generates to described piston (4) strong Big thrust, until described piston (4) is moved to lower dead center, expansion stroke terminates；

Step 4) exhaust stroke,

The crankshaft (2) rotates under the action of inertia, and the top piston (5) returns to remote location, and the exhaust valve (102) is opened It opens, the crankshaft (2) pushes described piston (4) to run up, and exhaust gas is discharged, until described piston (4) is moved to Stop, the exhaust valve (102) are closed, and exhaust stroke terminates；

The top dead center position refers to the highest point position that described piston (4) can be moved in cylinder body；

The bottom dead center position refers to the lowest point that described piston (4) can be moved in cylinder body；

The remote location refers to the minimum point of the camshaft (6) lift of the camshaft mechanism；

The proximal location refers to the highest point of the camshaft (6) lift of the camshaft mechanism.

Technical field

The invention belongs to engine arts, in particular to a kind of internal combustion engine.

Background technique

It is well known that internal combustion engine is fuel moment in confined space be formed by cylinder barrel, cylinder cap, piston burn, The high pressure of generation, high-temperature gas push piston come can be to the conversion of kinetic energy in realizing, basic structure is shown in Figure 1.In order to Three condition fuel, oxygen and burning point needed for meeting burning, internal combustion send out function machine and pass through four air-breathing, compression, acting, exhaust punchings Journey is a working cycles.One working cycle crasnkshaft takes two turns, and expansion stroke completes primary energy conversion.Remarks: crankshaft and Piston is linked together by connecting rod, and two component operations are synchronous.That is crankshaft is in top dead centre or bottom dead center position, piston The synchronous power that in top dead centre or bottom dead center position, connecting rod two end is received it is equal in magnitude.

It introduces briefly below, the acting process of existing internal combustion engine:

1) intake stroke: crankshaft rotates under the action of external force inertia, runs down from top dead centre band piston, IVO Inlet Valve Open It opens, sucks air and fuel mixture (diesel engine only sucks air) until lower dead center, IC Intake Valve Closes, intake stroke knot Beam.

2) compression stroke: crankshaft rotates under the action of external force inertia, pushes piston to run up from lower dead center, compression is inhaled The gas entered, until top dead centre, compression stroke terminate.

3) expansion stroke: crankshaft rotation, piston is in upper dead center position, and fuel is in closed, narrow compression space, moment Burning generates high pressure, high-temperature gas pushes piston to run down, and piston is converted to downward thrust by connecting rod the rotation of crankshaft Turn power externally to export, until lower dead center, expansion stroke terminate.

4) exhaust stroke: crankshaft rotates under the action of external force inertia, pushes piston to run up from lower dead center, exhaust valve It opens, the exhaust gas that discharge burning generates, until top dead centre, exhaust valve closing, exhaust stroke terminate.

Piston is reciprocating in cylinder in expansion stroke, and crankshaft is using trunnion as the center of circle, with trunnion and pitman shaft The distance of center circle of neck is radius, is rotated.

Dissect expansion stroke:

Piston: when expansion stroke starts, in top dead center position, piston upper end is closed, narrow compression for piston and crankshaft-synchronous Space, at this moment fuel moment burns, and generates high pressure, high-temperature gas, and piston is pushed to run down.Gas is transported downwards in promotion piston While row, piston upper end confined space increases, and gas expansion, pressure reduction persistently reduces the thrust of piston.

Crankshaft: when expansion stroke starts, crankshaft is in top dead center position, the circle of the centre point of main bearing journal, rod journal Heart point and piston pin centre point, 3 points on a vertical line (on the straight line of cylinder barrel centre point and main bearing journal centre point), At this moment closed, the narrow compression space in piston upper end, the burning of fuel moment, the gas pressure highest of generation, to the thrust of piston Also maximum.Instead because of centre point (centre point of main bearing journal), the point of rotation (centre point of rod journal) and thrust point are (living Plug pin centre point) 3 points on a vertical line, crankshaft is that zero (crankshaft cannot be maximum to the transformation efficiency of this maximum thrust Thrust be converted to rotary power output).And as the continuation crankshaft of expansion stroke rotates, centre point, the point of rotation and thrust point, Three-point shape is at a triangle.Crankshaft centre point and the point of rotation form the variation of power size during a lever rotation.I.e. The transformation efficiency that expansion stroke crankshaft pushes piston.

It learns from the above analysis, for the internal combustion engine of the prior art in expansion stroke, gas is by holding greatly to the thrust of piston Continue small reduction change procedure, and crankshaft is ascending to arrive small conversion process again to the conversion process of thrust.This feelings It can be found that maximum thrust cannot get maximum relatively change efficiency under condition.And currently, bigger dynamic in order to obtain in the prior art Power output, has generallyd use the technologies such as pressurization, charge inter cooling, Four valve, in-cylinder direct-jet, variable compression ratio, has only increased and do Ratio of combustion when function stroke obtains bigger combustion pressure (thrust), has ignored crankshaft instead and stops from top dead centre (0 degree) to lower Lever variation between point (180 degree), has missed the use of lever principle in expansion stroke, has reduced crankshaft to piston thrust Transformation efficiency.

Summary of the invention

In order to overcome the shortcomings in the prior art, the purpose of the present invention is to provide a kind of double-piston lever high efficience motor, Engine tool can be efficiently converted into maximum thrust rotatably kinetic energy output there are two piston.

Form closed, narrow space between piston, while fuel combustion generates maximum thrust, thrust make piston to Lower operation, synchronous crankshaft have certain angle, will generate a leverage, maximum thrust is efficiently converted into rotation The output of ground kinetic energy.

To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme:

A kind of double-piston lever high efficience motor, including engine cylinder body are provided with crankshaft, the song in the engine cylinder body Axis connects a piston by a connecting rod, and a top piston is additionally provided in the engine cylinder body, and the top piston passes through one Camshaft mechanism driving.

Further, the camshaft mechanism includes a camshaft, and the camshaft is driven by a spiral variable diameter driven gear Dynamic, the spiral variable diameter driven gear is by a spiral variable diameter active wheel drive, and the spiral variable diameter driving wheel is by a conversion gear Driving, the conversion gear are driven by a crankshaft toothed wheel, and the crankshaft toothed wheel is arranged on the crankshaft.

Further, the rotating ratio of the crankshaft toothed wheel and the conversion gear is 2:1.

Further, the camshaft is closely contradicted with an idler wheel, and the idler wheel is spindle rotationally arranged in a rolling wheel support On, the connected top piston rod in the bottom end of the rolling wheel support, the top piston rod is connect with the top piston.

Further, the camshaft mechanism further includes a recessed wheel assemblies, and the recessed wheel assemblies include a pair of fixed A pair of of concave wheel disk in a shaft offers a pair of symmetrical groove, institute on the opposing end surface of a pair of of concave wheel disk Rolling wheel support is stated between a pair of of concave wheel disk, it is recessed that the two stands of the rolling wheel support are respectively erected in described a pair In slot；The camshaft is fixed in the shaft, and between a pair of of concave wheel disk, the recessed wheel assemblies pass through institute It states shaft and connects the spiral variable diameter driven gear.

Further, the flute profile of the groove and the outer profile of the camshaft match.

Further, the engine cylinder body two sides offer an inlet valve and an exhaust valve respectively, the inlet valve and The exhaust valve is connected to the valve actuating mechanism of the engine, and the inlet valve and the exhaust valve are located at described piston Top position when in top dead center position；The top dead center position refers to that described piston can be moved to most in cylinder body High point position.

Another goal of the invention of the invention is to provide a kind of acting control method of double-piston lever high efficience motor, The following steps are included:

Step 1) intake stroke,

In the top dead center position, the crankshaft rotates described piston under the action of external force inertia, drives described work Plug is run down, and the top piston is maintained at remote location at this time；The IO Intake Valve Opens suck air and fuel until institute It states this piston and is moved to bottom dead center position, the IC Intake Valve Closes, intake stroke terminates；

Step 2 compression stroke,

The crankshaft rotates under the action of inertia, pushes described piston to run up, the top piston is still remote at this time End position remains unchanged, and compresses the gas of sucking, and until described piston is moved to top dead center position, compression stroke terminates；

Step 3) expansion stroke,

The crankshaft rotates under the action of inertia, and described piston is driven to run down, and the camshaft mechanism is simultaneously at this time It is synchronous that the top piston proximal position acceleration is pushed to push away, when the crankshaft rotates to an angle, the top piston Sync plus white is carried out to proximal location；When forming closed, narrow compression space between top piston and the described piston, Fuel moment burning simultaneously generates high pressure, high-temperature gas, generates powerful thrust to described piston, until described piston moves It moves to lower dead center, expansion stroke terminates；When the crankshaft described in expansion stroke goes to 150 °, described piston when lower dead center, The top piston starts to return to remote location；

Step 4) exhaust stroke,

The crankshaft rotates under the action of inertia, and the top piston returns to remote location, the exhauxt valve opens, the crankshaft It pushes described piston to run up, exhaust gas is discharged, until described piston is moved to top dead centre, the exhaust valve closing, Exhaust stroke terminates；

The top dead center position refers to the highest point position that described piston can be moved in cylinder body；

The bottom dead center position refers to the lowest point that described piston can be moved in cylinder body；

The remote location refers to the minimum point of the camshaft lift of the camshaft mechanism；

The proximal location refers to the highest point of the camshaft lift of the camshaft mechanism.

Compared with prior art, beneficial effects of the present invention are as follows:

Invention removes the cylinder caps of existing internal combustion engine, and former cylinder barrel is lengthened, and install one again in the cylinder barrel of lengthening Piston is driven by a camshaft mechanism, and Design of Valve is on the piston top dead center of cylinder barrel two sides.Engine of the invention When expansion stroke starts, at this moment piston does not have acting condition (fuel does not start to burn) in top dead center position, and crankshaft is used Property under the action of drive this piston to start to run to lower dead center, while synchronous cam axis mechanism starts to accelerate to push top piston to close End position accelerates to carry out, and when crankshaft rotates to the angle of setting, top piston accelerates to carry out arriving proximal location, shape between two pistons At closed, narrow compression space, while the burning of fuel moment generates maximum thrust, this piston is pushed to run down, synchronous Crankshaft has certain angle, will generate a leverage, and the kinetic energy that maximum thrust is efficiently converted to rotation is exported.

The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And can be implemented in accordance with the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention and the accompanying drawings. A specific embodiment of the invention is shown in detail by following embodiment and its attached drawing.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:

Fig. 1 is existing internal combustion engine structural schematic diagram.

Fig. 2 be double-piston lever high efficience motor of the invention structural schematic diagram (expansion stroke, this piston is in top dead centre Position).

Fig. 3 is structural schematic diagram (this work of expansion stroke of the cylinder part of double-piston lever high efficience motor of the invention Plug is when angled, fuel combustion, interior energy Efficient Conversion kinetic energy).

Fig. 4 is the structural schematic diagram of the recessed wheel assemblies of double-piston lever high efficience motor of the invention.

Specific embodiment

It is below with reference to the accompanying drawings and in conjunction with the embodiments, next that the present invention will be described in detail.