CN103334834A - Double-crankshaft connecting rod bias internal combustion engine - Google Patents
Double-crankshaft connecting rod bias internal combustion engine Download PDFInfo
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- CN103334834A CN103334834A CN 201310178318 CN201310178318A CN103334834A CN 103334834 A CN103334834 A CN 103334834A CN 201310178318 CN201310178318 CN 201310178318 CN 201310178318 A CN201310178318 A CN 201310178318A CN 103334834 A CN103334834 A CN 103334834A
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- crankshaft
- connecting rod
- combustion engine
- control arm
- diagonal control
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Abstract
The invention discloses a double-crankshaft connecting rod bias internal combustion engine. A crank connecting rod mechanism includes double crankshafts, and comprises a connecting rod (11) and an inclined connecting rod (10), wherein the upper end of the connecting rod (11) is articulated with a piston (4) of an air cylinder piston mechanism; the lower end of the connecting rod (11) is articulated with the middle of the inclined connecting rod (10) by an inclined connecting rod pin (9); the double crankshafts include a main crankshaft (8) and an auxiliary crankshaft (7); a connecting line of axes of the main crankshaft (8) and the auxiliary crankshaft (7) forms an included angle with a horizontal plane; and a main crankshaft journal (12) and an auxiliary crankshaft journal (13) of the main crankshaft (8) and the auxiliary crankshaft (7) are articulated with the two ends of the inclined connecting rod (10) respectively. The internal combustion engine improves interaction between the piston and the crankshafts; rotary torque is kept in an optimal state during a whole working cycle; the mechanical loss is reduced; the efficiency of the internal combustion engine is improved; the internal combustion engine is stable in operation, compact in structure, and easy to process, is applicable to various multi-cylinder diesel internal combustion engines and gasoline internal combustion engines; the service life is prolonged greatly; the traditional structure is changed slightly; and the cost is saved.
Description
Technical field
The present invention relates to a kind of internal-combustion engine, especially relate to by improving the crankshaft ﹠ connecting of internal-combustion engine, improve the double crankshaft connecting rod offset engine of internal-combustion engine energy conversion efficiency efficient.
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, and the rotating power that the translation of piston is converted into bent axle is outwards exported.Crankshaft ﹠ connecting is the indispensable critical piece on the internal-combustion engine that generally uses at present, its working principle is to utilize connecting rod one end and cylinder piston hinged, the bent neck of the connecting rod the other end and bent axle is hinged simultaneously, make the back and forth movement of cylinder piston be transformed into rotatablely moving of bent axle, done work by crankshaft again.
This internal combustion engine use is extremely wide, is the traditional power of the modern means of communication such as automobile, steamer, but because this internal-combustion engine adopts crankshaft, its shortcoming in use constantly comes out.
Piston is continuous with corresponding crankshaft journal by a connecting rod.Piston is done round straight line motion in cylinder, link to each other with bent axle by connecting rod, and both interact, and the straight line motion of piston is changed into the circular movement of external acting.Its shortcoming is that the connecting rod of piston and the angle of the interaction force between the bent axle always change along with the rotation of bent axle, can not keep best torque, not only wasted mechanical energy and also aggravated mechanical loss, the merit that consumes is very big, and therefore the waste to fuel oil also is surprising.。
The connecting rod of four-stroke cylinder piston is subjected to acting on the restriction of angle to the active force of bent axle, so the rotation of bent axle is inadequately stably.
Existing internal-combustion engine transformation of energy is to pass to crank by connecting rod with joint efforts by the effect of the gas in the jar swelling pressure and the addition of piston group reciprocal inertia force, is exported by bent axle with tangential acquisition moment of torsion on crank.Because the change of connecting rod and Vertical direction angle, its tangential force value changes, and the gas in the jar swelling pressure reach peak, angle is 0 degree, therefore, also is 0 to the crankshaft journal running torque, that is to say, when piston is in top dead center, mixed gas is at the most compressed state down-firing, at this moment, contribution to the crankshaft journal running torque but is zero, this just makes that existing internal-combustion engines crank-connecting rod mechanism energy conversion efficiency is not high, and the whole efficiency of internal-combustion engine generally can not surpass 30%, causes energy waste.
Summary of the invention
Technical problem to be solved by this invention just provides a kind of mechanical efficiency height, solves the novel connecting rod of the problem that causes mechanical energy waste and mechanical loss of interacting between existing internal-combustion engine and bent axle and the piston.
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 double crankshaft connecting rod offset engine comprises intake and exhaust ignition system, cylinder piston mechanism and connecting rod, and described connecting rod is the hyperbolic axle, and it comprises:
Connecting rod 11 and diagonal control arm 10, the piston 4 of described connecting rod 11 upper ends and cylinder piston mechanism is hinged, and the lower end is hinged by a diagonal control arm pin 9 and diagonal control arm 10 middle parts;
Described hyperbolic axle is respectively main crankshaft 8 and secondary crankshaft 7, described main crankshaft 8 and the mounting point of secondary crankshaft 7 on crankcase wall be main crankshaft 8 last, secondary crankshaft 7 is down, its axial connecting line and horizontal plane shape are in an angle; The main crankshaft axle journal 12 of described main crankshaft 8 and secondary crankshaft 7 and secondary crankshaft axle journal 13 are hinged with the two ends of diagonal control arm 10 respectively;
The angle that described main crankshaft 8 and secondary crankshaft 7 axial connecting lines and horizontal plane form is between 15 degree-50 degree.
The articulated manner of the two ends of described connecting rod 11 and diagonal control arm 10, diagonal control arm 10 and main crankshaft axle journal 12 and secondary crankshaft axle journal 13 adopts uses bearing shell as liner in hinging hole.
Described connecting rod 11 bottoms are the curve shape of indent near described diagonal control arm pin 9 places.
When described piston 4 was in top dead center, the angle of described diagonal control arm 10 and substantially horizontal was respectively 30 degree and 15 degree.
Described internal-combustion engine is at described major-minor bent axle 7, draw main crankshaft gear 14 and secondary crankshaft gear 15 on 8, between described crankshaft gear 14 and 15, idle gear 17 is set, idle gear 17, main crankshaft gear 14 and secondary crankshaft gear 15 form a parallelogram with described diagonal control arm 10, and described diagonal control arm 10 is around idle gear 17, main crankshaft gear 14 and the running of secondary crankshaft gear 15 lines.
Described internal-combustion engine adopts the horizontal cylinder spread pattern, improves the lubricating condition of hyperbolic axle.
The present invention has had following advantage:
Improve between piston and the bent axle and interact, in whole work cycle, rotating force is apart from keeping the optimum state, especially be in the top dead center of compression stroke when piston, during combustible gas igniting outburst, connecting rod applies a bigger running torque to crank journal, has improved the combustion efficiency of existing internal-combustion engine and mechanical efficiency more than 20%;
Machine operation stability is high, operates steadily, and has reduced mechanical loss, has prolonged working life greatly;
Compact structure is applicable to various multiple cylinder diesels and gasoline engine, also is applicable to air compressor.
Little to traditional structural modification, easy processing is saved cost.
Description of drawings
Fig. 1-Fig. 2 shows the working stroke of this double crankshaft connecting rod offset engine;
Fig. 3 and Fig. 4 show exhaust stroke;
Fig. 5 and Fig. 6 show diagonal control arm and the embodiment's of the different angles of horizontal line schematic representation;
Fig. 7 is the stabilizing mechanism schematic representation of double crankshaft connecting rod of the present invention;
Fig. 8 shows that the present invention adopts the embodiment's of horizontal cylinder schematic representation.
Among the figure
1 spark plug, 10 diagonal control arms
2 intake valves, 11 connecting rods
3 exhaust valves, 12 main crankshaft axle journals
4 pistons, 13 secondary crankshaft axle journals
5 wrist pins, 14 main crankshaft gears
6 cylinders, 15 secondary crankshaft gears
7 secondary crankshafts, 16 idle gears
8 main crankshafts, 17 idle gear axles
9 diagonal control arm pins
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
Fig. 1-Fig. 3 has illustrated 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 are formed the intake and exhaust ignition system; Cylinder 6 and piston 4 are formed cylinder piston mechanism, and connecting rod 11 and bent axle (comprising major-minor bent axle 8,7) constitute connecting rod, finish the power-converting that rotatablely moves with straight line motion up and down and the bent axle of piston 4.Characteristics of the present invention are to have improved connecting rod, increase a bent axle and diagonal control arm 10, make connecting rod 11 and diagonal control arm 10 hinged, form biasing, drive the hyperbolic axle simultaneously.This double crankshaft connecting rod biasing mechanism is replaced original plain connecting rod, improved between piston 4 and the bent axle and interacted, in whole work cycle, rotating force is apart from keeping the optimum state, especially be in the top dead center of compression stroke when piston 4, the combustible gas igniting breaks out moment, and 10 pairs of major-minor crank journals of connecting rod 11 and diagonal control arm all apply a bigger running torque, have improved combustion efficiency and the mechanical efficiency of existing internal-combustion engine.
Double crankshaft connecting rod biasing mechanism of the present invention comprises a connecting rod 11 and diagonal control arm 10, and connecting rod 11 upper ends and piston 4 are hinged, and the lower end is hinged by diagonal control arm pin 9 and diagonal control arm 10 middle parts; Two bent axles according to its stressing conditions, are respectively main crankshaft 8 and secondary crankshaft 7, main crankshaft 8 and the mounting point of secondary crankshaft 7 on crankcase wall are that main crankshaft 8 is last, secondary crankshaft 7 is down, its axial connecting line and horizontal plane shape in an angle, this angle is generally between 15 degree-50 are spent; Main crankshaft axle journal 12 and secondary crankshaft axle journal 13 are hinged with the two ends of diagonal control arm 10 respectively.When piston 4 moves up and down, drive link 11 motions, diagonal control arm 10 is under the acting in conjunction of connecting rod 11 and major-minor crank mechanism, and the diagonal control arm pin 9 of its lower end rotates; The two ends of diagonal control arm 10 drive main crankshaft axle journal 12 and secondary crankshaft axle journal 13 rotates synchronously around main crankshaft 8 and secondary crankshaft 7 respectively, drive main crankshaft 8 and secondary crankshaft 7 rotations, outputting power.
Above-mentioned articulated manner all is to adopt traditional connecting rod and the Placement of crankshaft journal, adopts bearing shell as liner in hinging hole.
Connecting rod 11 lower ends are when rotating, when main crankshaft axle journal 12 is in the distal-most end of major-minor axial connecting line direction, connecting rod 11 can interfere with main crankshaft 8, for fear of the generation of this situation, connecting rod 11 bottoms is designed to the curve shape of indent near diagonal control arm pin 9 places.
Following conjunction with figs. illustrates working principle of the present invention:
Fig. 1-Fig. 2 shows the working stroke of this double crankshaft connecting rod offset engine; Fig. 1 shows that compression stroke finishes, at this moment, piston 4 is in top dead center, intake valve 2 and exhaust valve 3 all are in closed condition, be in 4 igniting of most compressed state spark plug of following time at combustible gas, it is descending that gas fuel burning promotes piston 5, at this moment, because it is descending that the diagonal control arm pin 9 of the lower end of connecting rod 11 promotes diagonal control arm 10, the two ends of diagonal control arm 10 drive main crankshaft axle journal 12 and secondary crankshaft axle journal 13 respectively, because major- minor crankshaft journal 12 and 13 and the direction of the active force of the direction of major- minor bent axle 8 and 7 axial connecting lines and 10 pairs of crankshaft journals of diagonal control arm not on a line, depart from an angle, the active force of 10 pairs of major- minor crankshaft journals 12,13 of diagonal control arm produces horizontal component, this horizontal component drives 12,13 rotations of major-minor crankshaft journal.
Fig. 2 shows workmanship's stroke, and piston 5 is in the stressed downstream state in the middle of the cylinder.At this moment, inflammable gas promotes piston 5 and continues descending, under the affecting of diagonal control arm 10, major- minor crankshaft journal 12,13 continue rotation, diagonal control arm 10 and major- minor crankshaft journal 12 and 13 and the direction of major- minor bent axle 8 and 7 axial connecting lines between angle for strengthening gradually, reach 90 degree, make running torque reach maximum value; Afterwards, reduce gradually.
Fig. 3 and Fig. 4 show exhaust stroke; Under the drive of major-minor crankshaft rotating inertia, promote diagonal control arm pin 9 and be rotated further, connecting rod 11 is up, and under the up effect of connecting rod 11, it is up to promote piston 5 then, and at this moment, this moment, piston 5 was crossed lower dead center, was in uplink state; The piston 5 up exhaust strokes of finishing.In exhaust process, exhaust valve 3 is in the state of opening all the time.
Afterwards, under the effect of major-minor bent axle rotator inertia, major- minor crankshaft journal 12,13 continues rotation, promotes piston 5 and moves up and down, and finishes air inlet and compression stroke, finishes whole work cycle then.
According to traditional connecting rod, when gas was compressed to maximum, piston was in top dead center, and connecting rod is in Vertical direction, igniting this moment, and descent of piston thrust is zero to the horizontal component of crankshaft journal.That is to say, in the time of gas fuel burning explosive force maximum, be zero to the turning effort power of crankshaft journal.Therefore, will postpone a time usually, at this moment, gas has not been to be in most compressed state, must reduce combustion efficiency firing time.
In the technical program, in the whole process of piston 5 from the top dead center to the lower dead center, diagonal control arm 10 has one 15 degree to 60 angles of spending with substantially horizontal all the time, with major- minor crankshaft journal 12 and 13 and the direction of major- minor bent axle 8 and 7 axial connecting lines and the variation of substantially horizontal angle, diagonal control arm 10 and major- minor crankshaft journal 12 and 13 and the direction of major- minor bent axle 8 and 7 axial connecting lines between angle between 0 degree and 90 degree, change.Be in top dead center at piston 5, diagonal control arm 10 still can be to major- minor crankshaft journal 12,13 produce bigger running torque, therefore, in compression process, when arriving top dead center, piston 5 can light a fire, it is descending that gas fuel burning promotes piston 5, as above analyze, this linkage mechanism can produce big running torque to major-minor crankshaft journal 12,13.The technical program has taken full advantage of the pressure that gas fuel burning forms at whole workmanship's stroke, and it fully is converted into the power that promotes the crankshaft journal rotation, and combustion efficiency is improved greatly, and the motor operation is more steady.
Fig. 5 and Fig. 6 show diagonal control arm and the embodiment's of the different angles of horizontal line schematic representation.When piston 4 was in top dead center, the angle of diagonal control arm 10 and substantially horizontal was respectively 30 degree and 15 degree (being respectively 60 degree and 75 degree with the angle of Vertical direction), the directed force F of 10 pairs of crankshaft journals of diagonal control arm
X, produce two component F
XAnd F
Y, with the variation of above-mentioned angle, crankshaft journal is formed the component F of running torque
XSize variation.
Fig. 7 is the stabilizing mechanism schematic representation of double crankshaft connecting rod of the present invention; When main crankshaft 8 rotates to position shown in Figure 7, the angle of diagonal control arm 10 is 45 degree, major-minor crankshaft journal line overlaps with diagonal control arm 10 when being a line, and is different with the force bearing point between crankshaft journal because of diagonal control arm 10, asynchronous different direction rotation can take place and stuck phenomenon.The present invention is respectively at major-minor bent axle 7, draw main crankshaft gear 14 and secondary crankshaft gear 15 on 8, between above-mentioned crankshaft gear 14 and 15, idle gear 17 is set, idle gear 17, main crankshaft gear 14 and secondary crankshaft gear 15 form a parallelogram with diagonal control arm 10, diagonal control arm 10 is around idle gear 17, main crankshaft gear 14 and the running of secondary crankshaft gear 15 lines, address the above problem, the active force of connecting rod 11 is steadily exported.
Fig. 8 shows that the present invention adopts the embodiment's of horizontal cylinder schematic representation; Owing to adopt the hyperbolic axle system, be in the crankshaft lubrication condition variation of higher position; The present invention adopts the form of horizontal cylinder, and the lubricating condition of two bent axles in the bent axle is in pairs all improved.
Above-described specific embodiment; purpose of the present invention, technological scheme and beneficial effect have been carried out further detailed description; institute is understood that; the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a double crankshaft connecting rod offset engine comprises intake and exhaust ignition system, cylinder piston mechanism and connecting rod, it is characterized in that:
Described connecting rod is the hyperbolic axle, and it comprises:
Connecting rod (11) and diagonal control arm (10), described connecting rod (11) upper end is hinged with the piston (4) of cylinder piston mechanism, and the lower end is hinged with diagonal control arm (10) middle part by a diagonal control arm pin (9);
Described hyperbolic axle is respectively main crankshaft (8) and secondary crankshaft (7), described main crankshaft (8) and the mounting point of secondary crankshaft (7) on crankcase wall be main crankshaft (8) last, secondary crankshaft (7) is down, its axial connecting line and horizontal plane shape are in an angle; The main crankshaft axle journal (12) of described main crankshaft (8) and secondary crankshaft (7) and secondary crankshaft axle journal (13) are hinged with the two ends of diagonal control arm (10) respectively.
2. internal-combustion engine according to claim 1 is characterized in that: the angle that described main crankshaft (8) and secondary crankshaft (7) axial connecting line and horizontal plane form is between 15 degree-50 degree.
3. internal-combustion engine according to claim 2 is characterized in that: the articulated manner of the two ends of described connecting rod (11) and diagonal control arm (10), diagonal control arm (10) and main crankshaft axle journal (12) and secondary crankshaft axle journal (13) adopts uses bearing shell as liner in hinging hole.
4. internal-combustion engine according to claim 3 is characterized in that: curve shape into indent is located near described diagonal control arm pin (9) in described connecting rod (11) bottom.
5. internal-combustion engine according to claim 4 is characterized in that, described piston (4) is when being in top dead center, and the angle of described diagonal control arm (10) and substantially horizontal is respectively 30 degree and 15 degree.
6. internal-combustion engine according to claim 5, it is characterized in that, described internal-combustion engine is at described major-minor bent axle (7), (8) draw main crankshaft gear (14) and secondary crankshaft gear (1) 5 on), idle gear (17) is set between described crankshaft gear (14) and (15), idle gear (17), main crankshaft gear (14) and secondary crankshaft gear (15) form a parallelogram with described diagonal control arm (10), and described diagonal control arm (10) is around idle gear (17), main crankshaft gear (14) and the running of secondary crankshaft gear (15) line.
7. internal-combustion engine according to claim 1 is characterized in that, described internal-combustion engine adopts the horizontal cylinder spread pattern, improves the lubricating condition of hyperbolic axle.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201310178318 CN103334834A (en) | 2013-05-15 | 2013-05-15 | Double-crankshaft connecting rod bias internal combustion engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201310178318 CN103334834A (en) | 2013-05-15 | 2013-05-15 | Double-crankshaft connecting rod bias internal combustion engine |
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Cited By (4)
| 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 |
| CN106089427A (en) * | 2015-04-30 | 2016-11-09 | 陈作应 | Variable lever offset conn rod internal combustion engine |
| CN106353213A (en) * | 2016-09-29 | 2017-01-25 | 华南理工大学 | Friction abrasion testing machine |
| CN113294260A (en) * | 2021-06-30 | 2021-08-24 | 王尚礼 | Method for improving work doing efficiency of internal combustion engine |
-
2013
- 2013-05-15 CN CN 201310178318 patent/CN103334834A/en active Pending
Cited By (5)
| 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 |
| CN106089427A (en) * | 2015-04-30 | 2016-11-09 | 陈作应 | Variable lever offset conn rod internal combustion engine |
| CN106353213A (en) * | 2016-09-29 | 2017-01-25 | 华南理工大学 | Friction abrasion testing machine |
| CN106353213B (en) * | 2016-09-29 | 2023-03-21 | 华南理工大学 | Friction wear testing machine |
| CN113294260A (en) * | 2021-06-30 | 2021-08-24 | 王尚礼 | Method for improving work doing efficiency of internal combustion engine |
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Application publication date: 20131002 |