CN104879213A - Lever type offset connecting rod double-crankshaft internal combustion engine - Google Patents
Lever type offset connecting rod double-crankshaft internal combustion engine Download PDFInfo
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- CN104879213A CN104879213A CN201410077385.1A CN201410077385A CN104879213A CN 104879213 A CN104879213 A CN 104879213A CN 201410077385 A CN201410077385 A CN 201410077385A CN 104879213 A CN104879213 A CN 104879213A
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- crankshaft
- connecting rod
- main
- neck
- combustion engine
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Abstract
The invention relates to a lever type offset connecting rod double-crankshaft internal combustion engine. A crank and connecting rod mechanism is a double-crankshaft crank and connecting rod mechanism and comprises a main crank journal (8), an auxiliary crank journal (7) and a lever type pull rod, wherein the an included angle is formed between the axis connecting line of the main crank journal (8) and the auxiliary crank journal (7) and a horizontal plane; the lever type pull rod comprises a main pull rod (10) and an auxiliary pull rod (18), the main pull rod (10) is provided with a long arm and a short arm which roughly form an L shape, one end of the long arm is hinged to a connecting rod, the other end of the long arm is hinged to a main crankshaft connecting rod journal (12), the short arm is hinged to one end of the auxiliary pull rod (18), the other end of the auxiliary pull rod (18) is hinged to an auxiliary crankshaft connecting rod journal (13), and the offset connecting rod is formed. The lever type offset connecting rod double-crankshaft internal combustion engine has the advantages that interaction between a piston and crankshafts is improved, rotation torque is kept in the optimal state during the whole work cycle, mechanical loss is reduced, and internal combustion engine efficiency is increased; the internal combustion engine is stable in operation, compact in structure, applicable to various multi-cylinder diesel and gasoline internal combustion engines, small in modification on traditional structures, easy to machine and cost saving.
Description
Technical field
The present invention relates to a kind of internal-combustion engine, especially relating to the crankshaft & connecting by improving internal-combustion engine, improving the Lever type offset conn rod Double-crankshaft internal combustion engine of internal combustion energy conversion efficiency efficiency.
Background technique
Internal-combustion engine uses cylinder and piston mechanism that the pressure that the burning of fuel produces is converted into machine power, then uses crankshaft & connecting, is outwards exported by the rotating power that the translation of piston is converted into bent axle.Crankshaft & connecting is the indispensable critical piece on the current internal-combustion engine generally used, its working principle be utilize connecting rod one end and cylinder piston hinged, simultaneously the connecting rod the other end and crankshaft crooked neck hinged, make the back and forth movement of cylinder piston be transformed into the rotary motion of bent axle, then done work by crankshaft.But because this internal-combustion engine adopts crankshaft, its shortcoming in use constantly comes out.Its shortcoming is that the angle of interaction force between the connecting rod of piston and bent axle always changes along with the rotation of bent axle, best torque can not be kept, not only waste the loss that mechanical energy also exacerbates machinery, the merit consumed is very large, is also therefore surprising to the waste of fuel oil.Just discharging a large amount of pollution waste gas is the main breeder causing urban air PM25 concentration severe overweight haze weather.The active force of connecting rod to bent axle of four-stroke cylinder piston is subject to the restriction acting on angle, and therefore the rotation of bent axle is stable not.
Existing internal-combustion engine is exported by bent axle tangentially to obtain moment of torsion on crank.Because the change of connecting rod and Vertical direction angle, its tangential force value is change, the gas in the jar swelling pressure reach peak, angle is 0 degree, therefore, also be 0 to crankshaft journal running torque, that is, when piston is in top dead center, mixed gas is at most compressed state down-firing, now, be but zero to the contribution of crankshaft journal running torque, this just makes existing internal-combustion engines crank-connecting rod mechanism energy conversion efficiency not high, the whole efficiency of internal-combustion engine generally can not more than 30%, causing energy waste, and impact bent axle, is that engine noise is large.
In order to overcome the not high problem of existing internal-combustion engines crank-connecting rod mechanism energy conversion efficiency, application number is 201310178318.4, name is called the utility model patent of " double crankshaft connecting rod offset engine ", this double crankshaft connecting rod biasing mechanism as shown in Figure 1, this mechanism comprises double-crankshaft, is respectively main crankshaft 8 and secondary crankshaft 7; And add a diagonal control arm 10, centre and connecting rod 11 lower end of this diagonal control arm 10 are hinged, its two ends respectively with the main crankshaft connecting rod neck 12 of main crankshaft 8 and secondary crankshaft 7 and secondary crankshaft connecting rod neck 13 hinged.At major-minor bent axle 7, on 8, draw main crankshaft gear 14 and secondary crankshaft gear 15, idle gear 16 is set between described crankshaft gear 14 and 15.Said structure improves the interphase interaction of piston and bent axle, in whole work cycle, rotating force is apart from keeping preferable states, especially when piston is in the top dead center of compression stroke, during combustible gas igniting outburst, connecting rod applies a larger running torque to crank journal, improves combustion efficiency and the mechanical efficiency of existing internal-combustion engine.
But this kind of structure also has problems: due to the restriction of connecting rod, and the restriction of main crankshaft gear 14, secondary crankshaft gear 15 and idle gear 16 size, the length of diagonal control arm 10 is restricted, connecting rod 11 is apart from major-minor crank-shaft link neck 12,13 is nearer, make the explosive force that piston 4 is produced by the explosion stroke that diagonal control arm 10 is applied on major-minor crankshaft journal, because connecting rod 11 is apart from major-minor crank-shaft link neck 12,13 is nearer, distance is shorter, make running torque relatively little, the power of limit engine.
Summary of the invention
Technical problem to be solved by this invention is just to provide the high connecting rod of a kind of mechanical efficiency, and the interphase interaction solving existing internal-combustion engine and bent axle and piston causes the waste of mechanical energy and the increasing of mechanical loss, provides a kind of powerful internal-combustion engine.
In order to solve the problems of the technologies described above, the technical solution that internal-combustion engine of the present invention adopts is as follows:
A kind of Lever type offset conn rod Double-crankshaft internal combustion engine, comprises intake and exhaust ignition system, cylinder piston mechanism and connecting rod, it is characterized in that:
Described connecting rod is double-crankshaft connecting rod, and it comprises:
Double-crankshaft, is respectively main crankshaft neck 8 and secondary crankshaft neck 7, described main crankshaft neck 8 and the mounting point of secondary crankshaft neck 7 on crankcase wall be main crankshaft 8 under, secondary crankshaft 7 is upper, and its axial connecting line and horizontal plane shape are in an angle;
Connecting rod 11, the piston 4 of described connecting rod 11 upper end and cylinder piston mechanism is hinged;
Lever type pull bar, comprises main tie 10 and subtie 18, and described main tie 10 has a long-armed and galianconism, is roughly formed as L shape; Described long-armed one end is by stay rod pin 9 and rod hinge connection, and the other end is hinged with main crankshaft connecting rod neck 12, galianconism and hinged with subtie 18 one end; The other end and the secondary crankshaft rod journal 13 of described subtie 18 are hinged; Form offset conn rod.
Between the angle that the axial connecting line of described main crankshaft neck 8 and secondary crankshaft neck 7 and horizontal plane are formed is spent at 15 degree-50.
Described internal-combustion engine is respectively at described major-minor crankshaft journal 7, main crankshaft gear 14 and secondary crankshaft gear 15 is drawn on 8, between described crankshaft gear 14 and 15, idle gear 16 is set, idle gear 16, main crankshaft gear 14 and secondary crankshaft gear 15 and described Lever type pull bar form an approximate parallelogram, and described pull bar operates around the line of idle gear 16, main crankshaft gear 14 and secondary crankshaft gear 15.
The present invention is provided with following advantage:
The Lever type connecting rod 10,18 that this technological scheme uses can produce larger running torque to major-minor crank-shaft link neck 12,13, therefore, in compression process, can light a fire when piston 4 arrives top dead center, and gas fuel burning promotes the descending workmanship of piston 4.Improve the interphase interaction of piston and bent axle thus, in whole work cycle, rotating force is apart from keeping the optimum state, especially when piston is in the top dead center of compression stroke, during combustible gas igniting outburst, connecting rod applies a larger running torque to crank journal, improves combustion efficiency and the mechanical efficiency of existing internal-combustion engine.
Accompanying drawing explanation
Fig. 1 is prior art double crankshaft connecting rod biasing mechanism schematic diagram;
Fig. 2 is Lever type offset conn rod double-crankshaft structural scheme of mechanism of the present invention;
Fig. 3-Fig. 6 shows Lever type offset conn rod double-crankshaft institution staff process;
In figure
| 1 spark plug | 11 connecting rods |
| 2 intake valves | 12 main crankshaft rod journals |
| 3 exhaust valves | 13 secondary crankshaft rod journals |
| 4 pistons | 14 main crankshaft gears |
| 5 wrist pins | 15 secondary crankshaft gears |
| 6 cylinders | 16 idle gears |
| 7 secondary crankshaft necks | 17 idle gear shafts |
| 8 main crankshaft necks | 18 subties |
| 9 stay rod pins | 19 pull bar coupling shafts |
| 10 main ties |
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
Fig. 2 describes structure of the present invention and working principle, and as shown in the figure, this internal-combustion engine is internal-combustion piston engine, and most of structure is identical with traditional Structure of Internal-Combustion Engine, comprising: intake valve 2, exhaust valve 3 and spark plug 1 form intake and exhaust ignition system; Cylinder 6 and piston 4 form cylinder piston mechanism, connecting rod 11 and bent axle form connecting rod, and the present invention adopts double-crankshaft, comprises connecting rod 11 and major-minor crankshaft journal 8,7 drag links formed, complete the power-converting by the straight line motion up and down of piston 4 and the rotary motion of bent axle.Feature of the present invention is to improve connecting rod, and increase Lever type major-minor pull bar 10,18, replace original diagonal control arm, this Lever type main tie 10 has an a long-armed 9-12 and galianconism 12-19, is roughly formed as L shape; Long-armed two ends respectively with main crankshaft axle connecting rod neck 12 and piston rod 11 lower end hinged, a long-armed segment distance is left on galianconism top, hinged with one end of subtie 18, and the other end of subtie 18 and the hinged formation of secondary crankshaft rod journal 13 are biased.At major-minor crankshaft gear 14, arrange idle gear 16 between 15,3 gears engage each other, and its axial connecting line forms straight line.Piston 4 drives the galianconism of main tie 10 by connecting rod 11, and then pulls subtie 18 to left movement.Subtie 18 pairs of drag links provide running torque, outwards provide power by major-minor crankcase.Present invention improves the interphase interaction of piston 4 and bent axle, in whole work cycle, rotating force is apart from keeping the optimum state, especially when piston 4 is in the top dead center of compression stroke, combustible gas igniting outburst moment, the directed force F of the stay rod pin 9 of connecting rod 11 pairs of main ties 10, all apply a running torque by subtie 18 pairs of auxiliary crank axle journals, this moment is FxL
1, due to the offset conn rod that the present invention adopts, make L
1non-vanishing, produce larger running torque, improve combustion efficiency and the mechanical efficiency of existing internal-combustion engine.
Below coordinate accompanying drawing that working principle of the present invention is described:
Fig. 3-Fig. 6 shows Lever type offset conn rod double-crankshaft institution staff process; Fig. 3 shows piston 4 and is in top dead center, and combustible gas burning produces downward power F, by the effect of connecting rod 11, stay rod pin 9, main tie 10 and subtie 18, produces running torque FxL to secondary crankshaft rod journal 13
1, under the effect of intermeshing secondary crankshaft gear, 15 idle gears 16 and main crankshaft gear 14, main crankshaft rod journal 12 and secondary crankshaft rod journal 13 respectively around main crankshaft neck 8 and secondary crankshaft neck 7 synchronous axial system, outside outputting power.
Fig. 4 is presented at workmanship stroke, when piston 4 is in half stroke, now, produces running torque FxL to secondary crankshaft rod journal 13
1, F reduces gradually, but L
1slightly strengthen, the degree that running torque is reduced reduces, and keeps the rotating speed of synchronous axial system to maintain metastable state.
Fig. 5 is presented at workmanship stroke to be terminated, and is about to start exhaust stroke, and piston 4 is in lower dead center, at this moment, producing running torque to secondary crankshaft rod journal 13 is zero, utilizes the inertia of mechanism, it is up that subtie 18 and main tie 10 promote piston 4 by connecting rod 11, enters and put stroke.
Fig. 6 is presented in exhaust stroke process, and piston 4 is in stroke upwards, and at this moment, the inertia of mechanism continues through connecting rod 11, and to promote piston 4 up, completes exhaust stroke.
Prior art connecting rod offset mechanism produces running torque, and to be connecting rod 11 apply running torques by diagonal control arm 10 pairs of double-crankshafts, and the power F producing running torque is produced by explosion stroke, is multiplied by crankshaft journal determines running torque size to the perpendicular distance L of connecting rod 10.And double-crankshaft of the present invention applies running torque and equals F and be multiplied by the perpendicular distance L of crankshaft journal to connecting rod 10
1, due to L
1compare L
2large nearly one times, therefore, the moment of generation is also two times of prior art.
Above-described specific embodiment; further detailed description has been carried out to object of the present invention, technological scheme and beneficial effect; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a Lever type offset conn rod Double-crankshaft internal combustion engine, comprises intake and exhaust ignition system, cylinder piston mechanism and connecting rod, it is characterized in that:
Described connecting rod is double-crankshaft connecting rod, and it comprises:
Double-crankshaft, be respectively main crankshaft neck (8) and secondary crankshaft neck (7), described main crankshaft neck (8) and the mounting point of secondary crankshaft neck (7) on crankcase wall be main crankshaft (8) under, secondary crankshaft (7) is upper, and its axial connecting line and horizontal plane shape are in an angle;
Connecting rod (11), the piston (4) of described connecting rod (11) upper end and cylinder piston mechanism is hinged;
Lever type pull bar, comprises main tie (10) and subtie (18), and described main tie (10) has a long-armed and galianconism, is roughly formed as L shape; Described one end is by stay rod pin (9) and rod hinge connection, and the other end is hinged with main crankshaft connecting rod neck (12), galianconism and hinged with subtie (18) one end; The other end and the secondary crankshaft rod journal (13) of described subtie (18) are hinged; Form offset conn rod.
2. internal-combustion engine according to claim 1, is characterized in that: between the angle that the axial connecting line of described main crankshaft neck (8) and secondary crankshaft neck (7) and horizontal plane are formed is spent at 15 degree-50.
3. the internal-combustion engine according to right 2, it is characterized in that: described internal-combustion engine is respectively at described major-minor crankshaft journal (7,8) upper extraction main crankshaft gear (14) and secondary crankshaft gear (15), idle gear (16) is set between described crankshaft gear (14) and (15), idle gear (16), main crankshaft gear (14) and secondary crankshaft gear (15) and described Lever type pull bar form an approximate parallelogram, and described pull bar operates around the line of idle gear (16), main crankshaft gear (14) and secondary crankshaft gear (15).
4. the internal-combustion engine according to claim 1-3 is characterized in that: long-armed (9-12) galianconism (12-19) pull bar (18) form the constant lever of money state, act on fulcrum main crankshaft connecting rod neck (12), power arm (9-12) line is installed during top dead center and becomes horizontal sextant angle 15 degree-45 degree at fulcrum main crankshaft connecting rod neck (12), thus produce main crankshaft connecting rod neck (12) left rotary cutting to moment (F-12).
5. main crankshaft connecting rod neck is fulcrum according to claim 4, it is characterized in that: described main crankshaft connecting rod neck (12) and (19) form lever short arm and pull bar (18) left end is hinged, main crankshaft connecting rod neck (12) to lever connecting rod pin (9) formed power arm and connecting rod (11) hinged, move downward by cylinder swelling pressure piston and produce thrust (F) effect, through fulcrum main crankshaft connecting rod neck galianconism (12, 19) uranium (19) is connected to Zola's secondary crankshaft connecting rod neck (13) to anticlockwise through pull bar, form reaction force f, if it is F that fulcrum main crankshaft connecting rod neck bears pressure
?large young pathbreaker equals piston thrust F and adds reaction f, (F
?=F ten f), (f=FL1/L2).
6. reaction force f is characterized in that secondary crankshaft connecting rod neck (13) bears guide rod pulling force left and goes to balance and to move downward by cylinder swelling pressure piston that thrust F produces according to claim 5, pulls secondary crankshaft connecting rod neck to anticlockwise, to engage each other interlock promotion main crankshaft through secondary crankshaft gear, lazy shaftgear, main crankshaft gear in the external merit of anticlockwise or falling from the sky or outer space property of storage flywheel and main shaft rotary motion direction and leverage force direction, reaction balance power f direction resultant direction that is identical, that produce are all mutually same extremely during top dead center; (F
?=F ten FL1/L2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077385.1A CN104879213A (en) | 2014-02-28 | 2014-02-28 | Lever type offset connecting rod double-crankshaft internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077385.1A CN104879213A (en) | 2014-02-28 | 2014-02-28 | Lever type offset connecting rod double-crankshaft internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104879213A true CN104879213A (en) | 2015-09-02 |
Family
ID=53946856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410077385.1A Pending CN104879213A (en) | 2014-02-28 | 2014-02-28 | Lever type offset connecting rod double-crankshaft internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104879213A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298638A (en) * | 2014-11-08 | 2016-02-03 | 何家密 | Application to dragging crankshaft to do work via connecting rod and to controlling connecting shaft between connecting rod and piston |
| CN109404046A (en) * | 2018-12-17 | 2019-03-01 | 青岛丰金宏利机械科技有限公司 | A kind of lever balanced engine |
-
2014
- 2014-02-28 CN CN201410077385.1A patent/CN104879213A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298638A (en) * | 2014-11-08 | 2016-02-03 | 何家密 | Application to dragging crankshaft to do work via connecting rod and to controlling connecting shaft between connecting rod and piston |
| CN109404046A (en) * | 2018-12-17 | 2019-03-01 | 青岛丰金宏利机械科技有限公司 | A kind of lever balanced engine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150902 |
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| WD01 | Invention patent application deemed withdrawn after publication |