CN107327344A - A kind of energy-conservation can increase the I. C. engine crankshaft mechanism of torque - Google Patents

A kind of energy-conservation can increase the I. C. engine crankshaft mechanism of torque Download PDF

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Publication number
CN107327344A
CN107327344A CN201710695172.9A CN201710695172A CN107327344A CN 107327344 A CN107327344 A CN 107327344A CN 201710695172 A CN201710695172 A CN 201710695172A CN 107327344 A CN107327344 A CN 107327344A
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China
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crankshaft
pull bar
axis
crank
eccentric body
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CN201710695172.9A
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CN107327344B (en
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刘洪保
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/22—Cranks; Eccentrics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
    • F16C7/02—Constructions of connecting-rods with constant length
    • F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
    • F16H21/18—Crank gearings; Eccentric gearings
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Transmission Devices (AREA)

Abstract

This technology, which provides a kind of energy-conservation, can increase the I. C. engine crankshaft mechanism of torque, it includes bent axle, eccentric body, pull bar and pull bar small crankshaft, connecting rod, piston, there is the endoporus that the crank with bent axle coordinates, the cylindrical axis of eccentric body and the axis of the endoporus are in eccentric state on eccentric body；The upper installing connecting rods of the external circle of eccentric bushing, the connecting rod other end is connected with piston；One end of pull bar and the eccentric body arm of eccentric body are hinged, and the crank of the other end and pull bar small crankshaft is hinged；Bent axle and pull bar small crankshaft constant angular velocity are rotated, and eccentric body is using the interior axially bored line as axis oscillating；When crankshaft crank rotates to top dead centre, due to the effect of eccentric body, piston does not reach top dead center position；On the basis of position of the crankshaft crank in top dead centre, when crankshaft crank turns over 38 ° of angle [alpha]=12 °, piston reaches top dead center position.When internal combustion engine is near piston top dead center, the existing larger arm of force also has larger gaseous-pressure, can export high torque.

Description

A kind of energy-conservation can increase the I. C. engine crankshaft mechanism of torque
Technical field
This technology is related to field of internal combustion engine, specifically, is a kind of I. C. engine crankshaft that can be saved oil consumption, increase torque Mechanism.
Background technology
Traditional combustion engine pressure produced when being cylinder outburst, by piston, connecting rod and the external output torque of bent axle Work done, and cylinder pressure is one and become larger by zero from top dead centre to lower dead center to the arm of force of crankshaft torque, then gradually return To zero process, that is when a crank of bent axle reaches top dead centre, the axis for the connecting rod being connected on the crankshaft crank By the center of bent axle, piston on the connecting rod is connected to also in top dead center position, now the fuel gas buring pressure in cylinder It is very big, the arm of force but very little, so the moment of torsion that at this moment internal combustion engine is sent also very little, when the arm of force becomes larger with the rotation of bent axle （As benchmark when being located at top dead center position from crankshaft crank, the arm of force reaches maximum during 90 ° of crank rotation）When, fuel gas buring is produced Pressure but rapidly diminish, so torque is still little, this just greatly have impact on the power output of engine torque, cause energy The huge waste in source.
The content of the invention
The purpose of this technology, which is to provide a kind of energy-conservation, can increase the I. C. engine crankshaft mechanism of torque, the crank mechanism, when from Crankshaft crank from top dead center position when be rotated further by a low-angle when arm of force reach maximum so that internal combustion engine on piston only When near point, the existing larger arm of force also has larger gaseous-pressure, exports high torque.
Energy-conservation described in this technology can increase the I. C. engine crankshaft mechanism of torque, including bent axle 1, eccentric body 4, pull bar 5 With pull bar small crankshaft 3, connecting rod 2, piston 7, the endoporus 41 that there is on eccentric body 4 crank 11 with bent axle 1 to coordinate, eccentric body 4 cylindrical 42 axis and the axis of the endoporus 41 are in eccentric state；Installing connecting rods 2 on eccentric body 4 cylindrical 42, connecting rod 2 is another One end is connected with piston 7；One end of pull bar 5 and the eccentric body arm of eccentric body 4 are hinged, the other end and pull bar small crankshaft 3 Crank 31 is hinged；Bent axle 1 and the constant angular velocity of pull bar small crankshaft 3 are rotated, and eccentric body 4 is put by axis of the axis of endoporus 41 It is dynamic；When the crank 11 of bent axle 1 rotates to top dead centre, due to the effect of eccentric body 4, piston does not reach top dead center position； On the basis of position of the crankshaft crank 11 in top dead centre, when crankshaft crank 11 turns over -38 ° of angle [alpha]=12 °, due to eccentric body 4 effect, piston reaches top dead center position.
The beneficial effect of this technology：Because connecting rod is connected by eccentric body with crankshaft crank, this technology is by conventional reciprocating The work done in top dead centre of the crank of formula I. C. engine crankshaft changes turns over -38 ° of certain angle α=12 ° to crankshaft crank from top dead centre, Work done is broken out when having produced the larger arm of force, maximum energy work done, improves fuel when effectively being broken out using fuel gas buring Energy conversion rate.That is, in this technology, crankshaft crank is from upper when piston reaches top dead centre, fuel gas buring outburst work done Stop turns over certain angle, now there is a larger arm of force.But traditional internal combustion engine fires in piston to top dead centre, combustion gas Decrepitate break out work(when do not produce the arm of force, a very big idle work has been made in the generation without the arm of force.This technology is then in work Existing ideal arm of force L is present when plug reaches top dead centre outburst work done, therefore, it is possible to produce high torque.
As the further improvement to above-mentioned I. C. engine crankshaft mechanism, there is pin-and-hole on eccentric body arm, pull bar is by wearing The bearing pin and eccentric body arm for crossing the pin-and-hole are hinged.One end that pull bar is connected with the crank of pull bar small crankshaft 3 is around the axle of pull bar small crankshaft 3 Line makees circular-rotation, and pull bar drives eccentric body flexing axle crank axis or the axle of endoporus 41 with one end that eccentric body arm is connected String pendulum is moved.
As the further improvement to above-mentioned I. C. engine crankshaft mechanism, crankshaft crank 11 is from the reference position in top dead centre During turning to piston arrival top dead center position, the rotation direction of bent axle 1 is with eccentric body 4 around the axis oscillating of endoporus 41 In the opposite direction.
As the further improvement to above-mentioned I. C. engine crankshaft mechanism, the axis of bent axle 1 and the axis of pull bar small crankshaft 3 are flat OK, the axis of piston 7 is vertical with the axis of bent axle 1；Plane 100 and the axle of piston 7 where the axis of bent axle 1 and the axis of pull bar small crankshaft 3 Plane 200 where line and the axis of bent axle 1 is perpendicular；Bent axle 1 is opposite with the rotation direction of pull bar small crankshaft 3；Pull bar small crankshaft is bent Handle 31 is at 100 top of plane, and the rotation direction of bent axle 1 is with eccentric body 4 around the in opposite direction of the axis oscillating of endoporus 41；Pull bar When small crankshaft crank 31 is below plane 100, the rotation direction of bent axle 1 is with eccentric body 4 around the direction of the axis oscillating of endoporus 41 It is identical.
As the further improvement to above-mentioned I. C. engine crankshaft mechanism, the axis of pull bar small crankshaft crank 31 and pull bar Chinese yeast When plane 300 where the axis of axle 3 is in 15 ° of -25 ° of angles with plane 100, crankshaft crank 11 is located at top dead centre or lower dead center.
As the further improvement to above-mentioned I. C. engine crankshaft mechanism, a pair of meshing for driving pull bar small crankshaft 3 to rotate Gear be separately positioned on bent axle 1 and pull bar small crankshaft 3.
As the further improvement to above-mentioned I. C. engine crankshaft mechanism, pull bar 5 is arc, to away from the axis of bent axle 1 Direction is raised.Pull bar can be so avoided to interfere close to the recess of the axis of bent axle 1 with bent axle.
As the further improvement to above-mentioned I. C. engine crankshaft mechanism, eccentric body 4 is to pass through the flat of the axis of endoporus 41 Face is divided into two parts.So facilitate setting-up eccentricity body 4.
As the further improvement to above-mentioned I. C. engine crankshaft mechanism, the wall of endoporus 41 of eccentric body 4 is antifriction alloy. The abrasion to eccentric body and crankshaft crank can so be reduced.
As the further improvement to above-mentioned I. C. engine crankshaft mechanism, internal combustion engine is single cylinder or multi-cylinder engine, pull bar The quantity of the crank 31 of small crankshaft 3 is identical with the number of cylinders of internal combustion engine；Each crank 11 of bent axle 1 by an eccentric body 4, One pull bar 5 is connected with a crank 31 of pull bar small crankshaft 3.So, the piston in each cylinder reaches top dead centre combustion gas Crankshaft crank turns over certain angle from top dead centre during burning outburst work done, generates a larger arm of force, effectively utilizes combustion Maximum energy work done, improves the energy conversion rate of fuel during gas burning outburst.The crank 11 of bent axle 1 is designed as even number, Cloth is conducive to the dynamic balancing of bent axle 1 on the circumference centered on crankshaft center line, so, and inertia can be also produced in operation, is had Beneficial to the operating of internal combustion engine.Accordingly, the crank 31 of pull bar small crankshaft 3 is designed as even number, is distributed on pull bar small crankshaft axis Centered on circumference on, be so conducive to the dynamic balancing of pull bar small crankshaft 3.
When the crank of bent axle 1 rotates to top dead centre, due to the effect of eccentric body 4, the connecting rod bearing shell axis of piston is not Top dead center position is reached, when the crank of bent axle 1 is to when continuing to revolve through a low-angle after top dead center position, due to eccentric body 4 Effect, the piston that now piston rod watt axis is just reached in top dead center position, cylinder of internal-combustion engine also reaches top dead center position, At this moment cylinder air is compressed to extreme value, now the oil spout of internal combustion engine fuel injection nozzle or plug ignition, and combustion gas is fired in cylinder of internal-combustion engine Decrepitate is sent out, and promotes connecting rod and bent axle 1 to rotate work done by piston, that is piston compresses air reaches the outburst work done of cylinder top dead centre When, bent axle 1 just has the larger arm of force to produce, and fuel gas buring energy maximum when breaking out is utilized work done, improves fuel Energy conversion rate.
Brief description of the drawings
Fig. 1 is crankshaft crank in top dead center position（α=0 °, plane 300 is with plane 100 in 20 ° of angles）When crank mechanism Schematic diagram.
Fig. 2 is α=15 °（Plane 300 is with plane 100 in 35 ° of angles）When crank mechanism schematic diagram.
Fig. 3 is α=33 °（Plane 300 is with plane 100 in 53 ° of angles）When crank mechanism schematic diagram.
Fig. 4 is α=90 °（Plane 300 is with plane 100 in 110 ° of angles）When crank mechanism schematic diagram.
Fig. 5 is crank mechanism schematic diagram when plane 300 is in 155 ° of angles with plane 100.
Fig. 6 is plane 300 and plane 100 in 160 ° of angles（Crankshaft crank is in bottom dead center position）When crank mechanism illustrate Figure.
Fig. 7 is crank mechanism schematic diagram when plane 300 is in 115 ° of angles with plane 100.
Fig. 8 is crank mechanism schematic diagram when plane 300 is in 70 ° of angles with plane 100.
Fig. 9 is crank mechanism schematic diagram when plane 300 is in 25 ° of angles with plane 100.
Figure 10 be crankshaft crank from top dead center position turn over an angle [alpha] when crank mechanism schematic diagram.
Figure 11 is crank mechanism schematic diagram of the crankshaft crank in top dead center position.
Figure 12 is the top views such as bent axle, pull bar small crankshaft in Figure 11.
Figure 13 is the schematic diagram of eccentric body.
Figure 14 is Figure 13 right view.
In figure, bent axle 1, crankshaft center line 10, crankshaft crank 11, crankshaft crank 110, connecting rod 2, pull bar small crankshaft 3, pull bar are small Crankshaft center line 30, pull bar small crankshaft crank 31, pull bar small crankshaft crank axis 310, eccentric body 4, endoporus 41, cylindrical 42, partially Where heart body arm 43, pin-and-hole 44, pull bar 5, gear 6, piston 7, bearing pin 8, crankshaft center line 10 and pull bar small crankshaft axis 30 Plane 200, pull bar small crankshaft crank axis 310 and pull bar small crankshaft axis where plane 100, piston axis and crankshaft center line 30 place planes 300, crankshaft crank axis 110 and the place plane 400 of crankshaft center line 10, crankshaft crank centrode are round x, drawing Bar small crankshaft crank center track is round y, cylindrical 42 axis around the axis oscillating track of endoporus 41（Circular arc）In z, the upper end of connecting rod 2 Heart u, the lower end center v of connecting rod 2.
Embodiment
Below using bent axle 1 it is eccentric be 50mm, eccentric body 4 it is eccentric be 25mm, pull bar small crankshaft 3 bias as 65mm, the pitch-row of pull bar 5 are that the centre-to-centre spacing of 226.68mm, bent axle 1 and pull bar small crankshaft 3 is to illustrate exemplified by 210mm.
Energy-conservation shown in Figure 1 can increase the I. C. engine crankshaft mechanism of torque, including bent axle 1, eccentric body 4, pull bar 5 With pull bar small crankshaft 3, connecting rod 2, piston 7.
The equal meshed gears 6 of two numbers of teeth is connected to same one end of bent axle 1 and pull bar small crankshaft 3 by key respectively. In order to prevent the diameter of gear 6 excessive, the tooth that even number is meshed can be set between bent axle 1 and pull bar small crankshaft 3 Wheel 6 is driven so that bent axle 1 is identical, in opposite direction with the rotational angular velocity of pull bar small crankshaft 3.
There is a diameter of 70mm coordinated with the crank 11 of bent axle 1 endoporus 41 on eccentric body 4, eccentric body 4 it is interior The wall of hole 41 is antifriction alloy.
Cylindrical 42 a diameter of 130mm of eccentric body 4, the axis of cylindrical 42 axis and the endoporus 41 is in eccentric state, Eccentric throw is 25mm；Eccentric body 4 is divided into two parts with the plane by the axis of endoporus 41.
The lower end of installing connecting rods 2 on eccentric body 4 cylindrical 42, the upper end of connecting rod 2 is connected with piston 7.What connecting rod 2 was connected with piston Upper end center（That is the connecting rod bearing shell axis of piston）The lower end center v that u is connected to connecting rod 2 with cylindrical 42（I.e. cylindrical 42 axis）Away from From being 250mm.
Eccentric body 4, which has on the eccentric body arm 43 extended to sidepiece, eccentric body arm 43, pin-and-hole 44.The axle of pin-and-hole 44 Line and the diameter parallel of endoporus 41, between the two away from being 130mm, the plane where the axis of pin-and-hole 44 and the axis of endoporus 41 and cylindrical 42 axle The angle of plane where line and the axis of endoporus 41 is 50 °.
One end of pull bar 5 is hinged by the bearing pin 8 through pin-and-hole 44 with eccentric body arm, and the other end of pull bar 5 and pull bar are small The crank 31 of bent axle 3 is hinged；The axis of pin-and-hole 44 is parallel with pull bar small crankshaft crank axis, between the two away from 226.68mm.Pull bar 5 is Arc, it is raised to the direction away from the axis of bent axle 1.
During crank rotation, drive pull bar small crankshaft 3 to rotate by gear drive and rotated around its axis 3, due to two gears 6 Identical, bent axle 1 and the constant angular velocity of pull bar small crankshaft 3 are rotated, and one end that pull bar is connected with crank 31 moves in a circle, pull bar it is another One end drives eccentric body 4 to be swung using the axis of endoporus 41 as axis by eccentric body arm 43.
The axis 10 of bent axle 1 is parallel with the axis 30 of pull bar small crankshaft 3, spacing 210mm.The axis of piston 7 hangs down with the axis of bent axle 1 Directly；Plane 100 where the axis of bent axle 1 and the axis of pull bar small crankshaft 3 and the plane 200 where the axis of piston 7 and the axis of bent axle 1 It is perpendicular；Bent axle 1 is opposite with the rotation direction of pull bar small crankshaft 3.
The eccentric throw of bent axle 1 is 50mm, that is to say, that the track at crankshaft crank center is a diameter 100mm circles x.Draw The eccentric throw of bar small crankshaft is 65mm, that is to say, that the track of pull bar small crankshaft crank center is a diameter 130mm circles y.
Referring to Fig. 1, when the crank 11 of bent axle 1 rotates to top dead centre, the axis of pull bar small crankshaft crank 31 and pull bar Chinese yeast Plane 300 where the axis of axle 3 and the plane 100 where the axis of bent axle 1 and the axis of pull bar small crankshaft 3 are in 20 ° of angles, and pull bar is small Crankshaft crank 31 is in the top of plane 100.Now, the distance of upper end center u to crankshaft center line 10 that connecting rod 2 is connected with piston is 298.75mm, now piston do not reach top dead center position.
With rotating clockwise for bent axle, pull bar small crankshaft is rotated counterclockwise, and eccentric body 4 is around the axis inverse time of endoporus 41 Pin is swung.
Referring to Fig. 2, on the basis of position of the crankshaft crank 11 in top dead centre, crankshaft crank 11 turns over angle [alpha]=15 °, put down When face 300 is in 35 ° of angles with plane 100, the distance of small end center u to crankshaft center line 10 is 300.67mm, now piston Top dead center position is reached, the distance of crankshaft crank axis to crankshaft center line in the horizontal direction is 12.94mm, that is to say, that produced The one 12.94mm arm of force.If now fuel gas buring breaks out, larger pressure can be produced to piston, it is larger along with having The arm of force exist, so bent axle can produce larger moment of torsion.
With being rotated further for bent axle, referring to Fig. 3, when crankshaft crank 11 turns over angle [alpha]=33 °, plane 300 and plane 100 During in 53 ° of angles, the distance of upper end center u to the crankshaft center line 10 of connecting rod is 298.76mm, crankshaft crank axis to Crankshaft The distance of line in the horizontal direction reaches maximum, is 27.23mm, that is to say, that generate the arm of force for being 27.23mm to the maximum. Now, the distance of small end center u to crankshaft center line 10 is 298.76mm, and top dead centre is reached with α=15 ° noted earlier, piston Small end center u being compared apart from 300.67mm to crankshaft center line 10, is sufficiently close to during position；But now arm of force 27.23mm It is 2.1 times of arm of force 12.94mm noted earlier.Therefore, if now fuel gas buring break out, relative to it is noted earlier α= Fuel gas buring breaks out at 15 °, can produce more high pulling torque.
Referring to Fig. 4, when crankshaft crank turns to crankshaft crank axis, crankshaft center line, pull bar small crankshaft axis co-planar, plane 300 be in 110 ° of angles with plane 100, and the distance of small end center u to crankshaft center line 10 is 244.95mm.
Referring to Fig. 5, plane 300 is with plane 100 in 155 ° of angles, and the distance of small end center u to crankshaft center line 10 is 237.35mm。
Referring to Fig. 6, when the crank 11 of bent axle 1 rotates to lower dead center, the axis of pull bar small crankshaft crank 31 and pull bar Chinese yeast Plane 300 where the axis of axle 3 and the plane 100 where the axis of bent axle 1 and the axis of pull bar small crankshaft 3 are in 160 ° of angles, and pull bar Small crankshaft crank 31 is below plane 100.Now, the distance of small end center u to crankshaft center line 10 is 222.99mm.
Referring to Fig. 7, plane 300 is in 115 ° of angles with plane 100, and the axis of pull bar small crankshaft crank 31 is under plane 100 Side, the distance of small end center u to crankshaft center line 10 is 221.79mm.
Referring to Fig. 8, plane 300 is in 70 ° of angles with plane 100, and the axis of pull bar small crankshaft crank 31 is under plane 100 Side, the distance of small end center u to crankshaft center line 10 is 243.06mm.
Referring to Fig. 9, plane 300 is in 25 ° of angles with plane 100, and the axis of pull bar small crankshaft crank 31 is under plane 100 Side, the distance of small end center u to crankshaft center line 10 is 275.6mm.
Show crankshaft crank 11 from reference position rotational angle α referring to Figure 10（Crankshaft crank axis and crankshaft center line institute The angle of plane 200 where plane 400 and crankshaft center line and piston axis）Afterwards, crankshaft crank axis to crankshaft center line in water Square to distance be arm of force L.
The eccentric eccentric position of body 4 is arranged on power stroke one side during bent axle rotates a circle, the so crank when bent axle 1 When rotating to after top dead center and being rotated further by a low-angle, the cylindrical axis of eccentric body 4, because the effect of pull bar 5 is moved up, this When installed in eccentric body 4 it is cylindrical on connecting rod 2 internal combustion engine is pushed to top dead centre in cylinder, air is compressed to pole Value breaks out work done, and now bent axle 1 also generates the larger arm of force.

Claims (10)

1. a kind of energy-conservation can increase the I. C. engine crankshaft mechanism of torque, including bent axle（1）, eccentric body（4）, pull bar（5）And drawing Bar small crankshaft（3）, connecting rod（2）, piston（7）, it is characterized in that：Eccentric body（4）On have and bent axle（1）Crank（11）Coordinate Endoporus（41）, eccentric body（4）It is cylindrical（42）Axis and the endoporus（41）Axis be in eccentric state；Eccentric body （4）It is cylindrical（42）Upper installing connecting rods（2）, connecting rod（2）The other end and piston（7）It is connected；Pull bar（5）One end and eccentric body （4）Eccentric body arm be hinged, the other end and pull bar small crankshaft（3）Crank（31）It is hinged；Bent axle（1）With pull bar small crankshaft （3）Constant angular velocity is rotated, eccentric body（4）With the endoporus（41）Axis is axis oscillating；Work as bent axle（1）Crank（11）Rotation When going to top dead centre, due to eccentric body（4）Effect, piston do not reach top dead center position；With crankshaft crank（11）Upper On the basis of position during stop, crankshaft crank（11）When turning over -38 ° of angle [alpha]=12 °, due to eccentric body（4）Effect, piston Reach top dead center position.
2. I. C. engine crankshaft mechanism as claimed in claim 1, it is characterized in that：There is pin-and-hole on eccentric body arm, pull bar is by wearing The bearing pin and eccentric body arm for crossing the pin-and-hole are hinged.
3. I. C. engine crankshaft mechanism according to claim 1, it is characterized in that：Crankshaft crank（11）From the benchmark in top dead centre During position turns to piston arrival top dead center position, bent axle（1）Rotation direction and eccentric body（4）Around endoporus（41） Axis oscillating it is in opposite direction.
4. I. C. engine crankshaft mechanism according to claim 3, it is characterized in that：Bent axle（1）Axis and pull bar small crankshaft（3）Axle Line is parallel, piston（7）Axis and bent axle（1）Axis is vertical；Bent axle（1）Axis and pull bar small crankshaft（3）Plane where axis （100）With piston（7）Axis and bent axle（1）Plane where axis（200）It is perpendicular；Bent axle（1）With pull bar small crankshaft（3）Turn It is dynamic in opposite direction；Pull bar small crankshaft crank（31）Axis is in plane（100）During top, bent axle（1）Rotation direction and eccentric bushing Body（4）Around endoporus（41）Axis oscillating it is in opposite direction；Pull bar small crankshaft crank（31）Axis is in plane（100）It is bent during lower section Axle（1）Rotation direction and eccentric body（4）Around endoporus（41）The direction of axis oscillating is identical.
5. I. C. engine crankshaft mechanism according to claim 4, it is characterized in that：Pull bar small crankshaft crank（31）Axis and pull bar Small crankshaft（3）Plane where axis（300）With plane（100）During in 15 ° of -25 ° of angles, crankshaft crank（11）Positioned at top dead centre or Lower dead center.
6. I. C. engine crankshaft mechanism according to claim 4, it is characterized in that：Drive pull bar small crankshaft（3）A pair rotated Meshed gears is separately positioned on bent axle（1）With pull bar small crankshaft（3）On.
7. I. C. engine crankshaft mechanism according to claim 4, it is characterized in that：Pull bar（5）For arc, to away from bent axle（1） The direction of axis is raised.
8. I. C. engine crankshaft mechanism according to claim 1, it is characterized in that：Eccentric body（4）To pass through endoporus（41）Axle The plane of line is divided into two parts.
9. I. C. engine crankshaft mechanism according to claim 8, it is characterized in that：Eccentric body（4）Endoporus（41）Wall is resistance to Break-in gold.
10. I. C. engine crankshaft mechanism according to claim 1, it is characterized in that：Internal combustion engine is single cylinder or multi-cylinder engine, is drawn Bar small crankshaft（3）Crank（31）Quantity it is identical with the number of cylinders of internal combustion engine；Bent axle（1）Each crank（11）Pass through one Eccentric body（4）, a pull bar（5）With pull bar small crankshaft（3）A crank（31）It is connected.
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