CN102182582B - External combustion engine and transmission mechanism thereof - Google Patents
External combustion engine and transmission mechanism thereof Download PDFInfo
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- CN102182582B CN102182582B CN201110069452.1A CN201110069452A CN102182582B CN 102182582 B CN102182582 B CN 102182582B CN 201110069452 A CN201110069452 A CN 201110069452A CN 102182582 B CN102182582 B CN 102182582B
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Abstract
The invention discloses an external combustion engine and a transmission mechanism thereof. The external combustion engine comprises two groups of hot gas components, a transmission mechanism and a crank shaft, wherein each group of the hot gas components comprises a gas cylinder, a heater, a reheater and a cooler; a power piston replacement piston is arranged in the gas cylinder, and a cold cavity and a hot cavity are formed in the gas cylinder; the transmission mechanism comprises a connecting rod group and a swing rod group; the swing rod group comprises a center swing rod and edge swing rods; piston rods are hinged at two ends of the swing rod group respectively; a plane on which the center swing rod is placed and the planes on which the edge swing rods are placed are parallel to each other and coaxial with each other on a pivot shaft; the connecting rod group is surrounded by four connecting rods which are hinged between the pivot shaft and a crank shaft connecting rod neck; the first connecting rod and the second connecting rod are as long as each other and keep complementary angles from 30 to 60 degrees with the center swing rod and the edge swing rods; the third connecting rod and the fourth connecting rod are as long as each other, and the upper ends of the third connecting rod and the fourth connecting rod are hinged with each other; and a heat source heats the heater so that gas in a gas channel is expanded and contracted due to a reciprocating motion between a cold cavity and a hot cavity, and the crank shaft is driven by the transmission mechanism to do a periodic motion and work. The external combustion engine is easy to start and has low cost.
Description
Technical field
The present invention relates to motor, especially relevant with a kind of external-combustion engine and driving mechanism thereof.
Background technique
External-combustion engine is a kind of closed cycle reciprocating piston type heat engine of external combustion, because it was invented by Scottish Stirling in 1816, thus claim again Stirling engine, also referred to as heat engine.The media material of transferring energy in external-combustion engine (normally pressurized gas) is working medium, is filled with the working medium of a constant volume in the cylinder of, two, four or multiple sealings.Wei Re chamber, cylinder one end, the other end is cold chamber.Working medium is compressed in low temperature cold chamber, then flows to heating rapidly in high warm chamber, the acting of expanding.Heat or external heat source that in the firing chamber of fuel outside cylinder, continuous burning brings are passed to working medium by heater, and therefore working medium is not participated in burning directly, also do not need to change.
Because external-combustion engine has been avoided the quick-fried acting problem of shake of traditional combustion engine, thereby low noise, low pollution and low operating cost have been realized.The external-combustion engine various inflammable gass that can burn, as rock gas, biogas, petroleum gas, hydrogen, coal gas etc., the also liquid fuel such as incendivity diesel oil, liquefied petroleum gas (LPG), can also burn wood, and utilizes solar energy etc.As long as reach certain temperature difference between Yu Leng chamber, hot chamber, the external-combustion engine operation of can doing work, ambient temperature is lower, and the temperature difference more easily becomes greatly, and therefore, when generating electricity, generating efficiency is higher.The advantage of external-combustion engine maximum is that power efficiency is not affected by altitude, is very suitable for high altitude localities and uses.
But there is following defect in the external-combustion engine of prior art.
< < stirling engine model making > > mono-book of being published by publishing house of Shanghai Communications University on June 1st, 2010 is at Section of 2.2 Stirling engine of having introduced a kind of β type.As shown in Figure 1, this Stirling engine (being external-combustion engine) comprises the parts such as crankcase 98, cylinder 93, heater 94, regenerator 95 and cooler 96.In cylinder 93, be provided with two pistons, i.e. the power piston (being called for short PP) 972 of (being called for short DP) 971 of the displacement piston in cylinder 93 and cylinder 93 one end.Displacement piston 971 is divided into epicoele (instant heating chamber) 931 and cavity of resorption (being cold chamber) 932 by the space in cylinder 93, and epicoele 931, heater 94, regenerator 95, cooler 96 and cavity of resorption 932 successively gas circuit are connected to form gas channel.
As shown in Figure 1, the driving mechanism of this external-combustion engine comprises the inside and outside connecting rod being connected with bent axle 981.In crankcase 98, there is bent axle 981, on bent axle 981, by turning 982, be connected with inside connecting rod 983 more, on bent axle 981, be connected with for a pair of outside connecting rod 984,985 inside connecting rod 983 is monosymmetric, inside connecting rod 983 is for linker substitution piston 971, outside connecting rod 984,985 all, for connecting power piston 972, connects flywheel 99 on bent axle 981.
External-combustion engine shown in Fig. 1 is when work, for example, by external heat source (burning of solar energy or fuel) heater 94 is heated, so that the to-and-fro motion dilation band dynamic crankshaft 981 periodic motions actings with displacement piston 971 and power piston 972 at the cavity of resorption 932 as cold junction and between as the epicoele 931 in hot junction of the gas (working medium) in described gas channel, thereby the flywheel 99 connecting on the axle center with dynamic crankshaft 981 rotates with outside conveying capacity.
Above-mentioned external-combustion engine, has two defects, and the one, the lubrication system that need to involve great expense, the 2nd, external-combustion engine difficulty in starting after crankcase carries out high pressure sealing.
As shown in Figure 1, between inside connecting rod 983 and bent axle 981, outside connecting rod 984,985 and bent axle 981, be and turn structure more, be difficult to realize and connecting with bearing.Its bent axle 981 need be connected or be supported by bearing shell, therefore need, in the bottom of crankcase 98, the storage pool of machine oil pond 980 or other oiling agent be set, with to turning 982 more, bent axle 981 and bearing shell thereof be lubricated, and therefore increased the cost of transmission system.
In addition, when practical application, cylinder 93 need to be sealed.And, as motor, also need being sealed in a housing each parts entirety of above-mentioned gas channel and driving mechanism.If carry out atmospheric pressure sealed, the power of external-combustion engine does not reach the requirement of application level.In order to increase the power of external-combustion engine, need to carry out high pressure sealing to external-combustion engine, in housing, be filled with pressurized gas, for example tens or even tens atmospheric gases, the gas being filled with is for example hydrogen, air, helium, carbon dioxide or nitrogen etc.Be filled with after pressurized gas, above-mentioned external-combustion engine can run into the difficulty in startup.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of cost low, be easy to the external-combustion engine that starts, with solve the cost of external-combustion engine of prior art high, be difficult for the cost that starts low, be easy to the defect that starts.
Another object of the present invention is to provide the driving mechanism that a kind of cost for external-combustion engine is low, be easy to startup.
To achieve these goals, technological scheme of the present invention is as follows:
A kind of external-combustion engine, comprises hot gas assembly, driving mechanism and bent axle; Described hot gas assembly is two groups, and every group of hot gas assembly comprises cylinder, heater, regenerator and cooler, has power piston and displacement piston one on the other described in each in cylinder; Between described power piston and described displacement piston, be formed with cold chamber, between described displacement piston and described cylinder, be formed with hot chamber; The home position of described displacement piston is connected with the first end of first piston bar; Described first piston bar is through the center of circle of described power piston; Monosymmetric two second piston rods that are provided with of described first piston bar, described the second piston rod first end connects described power piston; Described driving mechanism comprises connection rod set and fork group: described fork group comprises two limit forks that center fork and described center fork bilateral symmetry arrange, the second end of the hinged described first piston bar in two ends of described center fork, the second end of hinged described second piston rod in two ends of described limit fork; The plane parallel at the plane at fork place, described center and each described limit fork difference place and described center fork and described limit fork are coaxial in a pivot; Described connection rod set surrounds quadrilateral by four connecting rods; Four connecting rods are: first connecting rod equal in length and second connecting rod,, be fixedly connected with limit fork with described center fork respectively and keep the mutually remaining angle between 30-60 degree to downward-extension from described pivot; Third connecting rod equal in length and the 4th connecting rod, their upper end is articulated with respectively first connecting rod and second connecting rod, and their lower end is articulated with the connecting rod neck of described bent axle; Between described hot chamber, heater, regenerator, cooler and cold chamber, gas circuit is connected to form gas channel successively, by external heat source heat described heater so that the gas in described gas channel between described cold chamber and described hot chamber to-and-fro motion dilation to drive described piston by bent axle periodic motion that described driving mechanism was connected acting.
External-combustion engine of the present invention, preferred, the angle of described center fork and described first connecting rod is 45 degree, the angle of described limit fork and described second connecting rod is 45 degree.
External-combustion engine of the present invention, preferred, the identical length of described four connecting rods etc.
External-combustion engine of the present invention, preferred, fork two ends, described center are outward extending arc upwards.
External-combustion engine of the present invention, preferred, described center fork and described first connecting rod are one-body molded, and described limit fork and described second connecting rod are one-body molded.
External-combustion engine of the present invention, preferred, described driving mechanism and described crankshaft seal, in crankcase, are sealed with pressurized gas in described crankcase.
External-combustion engine of the present invention, preferred, between described two cylinders, be supported with transverse slat, on described transverse slat, be provided with the column vertical with described transverse slat, described bent axle is rotating is connected in described column bottom, and described pivot is fixedly connected on the top of described column.
A kind of driving mechanism, for the transmission between bent axle and the cylinder piston rod of external-combustion engine; Described driving mechanism comprises connection rod set and fork group: described fork group comprises two limit forks that center fork and described center fork bilateral symmetry arrange, the two ends of described center fork are in order to the piston rod of hinged displacement piston, and the two ends of described limit fork are in order to the piston rod of hinged power piston; The plane parallel at the plane at fork place, described center and each described limit fork difference place and described center fork and described limit fork are coaxial in a pivot; Described connection rod set surrounds quadrilateral by four connecting rods; Four connecting rods are respectively: first connecting rod equal in length and second connecting rod,, be fixedly connected with limit fork with described center fork respectively and keep the mutually remaining angle between 30-60 degree to downward-extension from described pivot; Third connecting rod equal in length and the 4th connecting rod, upper end is articulated with respectively first connecting rod and second connecting rod, and lower end is articulated with the connecting rod neck of described external-combustion engine bent axle.
Driving mechanism of the present invention, preferred, described angle is 45 degree, the identical length of described four connecting rods etc.
Driving mechanism of the present invention, preferred, described center fork and described first connecting rod are one-body molded, and described limit fork and described second connecting rod are one-body molded, and fork two ends, described center are outward extending arc upwards.
Beneficial effect of the present invention is:
Driving mechanism of the present invention and external-combustion engine of the present invention, adopt fork single axle construction, by connection rod set and fork group, carry out the transmission between bent axle and cylinder piston rod, by fork group, realize poor 90 degree that approach all the time of motion phase between the two-piston of each cylinder, because a set of fork group drives the power piston of two groups of cylinders and replaces piston simultaneously, guarantee poor 180 degree that approach all the time of motion phase of the similar piston between two cylinders, thereby the moving direction of two power piston is just in time contrary, therefore in the process of power piston motion, the volume of the high-pressure air in crankcase remains unchanged relatively, thereby reduced the resistance that the pressurized gas volume compression because sealing in crankcase produces power piston, therefore external-combustion engine is started to the resistance forming very little, external-combustion engine is easily started.
And, the connections of all articulated elementss such as connection rod set, fork group and piston rod and the rotational support of rotating component are all realized by bearing, low to lubricating requirement, the non-maintaining cycle is long, needn't use the structure that turns of prior art more, do not need connect or support with bearing shell, saved cost and the shared space of oiling agent storage pool of oiling agent, therefore reduced the cost of transmission system.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of external-combustion engine of prior art.
Fig. 2 is the schematic perspective view of the external-combustion engine of the preferred embodiment of the present invention.
Fig. 3 is that the master of the external-combustion engine of the preferred embodiment of the present invention looks schematic diagram.
Fig. 4 is the schematic perspective view of the fork group of the external-combustion engine of the preferred embodiment of the present invention.
Embodiment
In order to make technical problem to be solved by this invention, technological scheme and beneficial effect clearer, below in conjunction with specific embodiment, the present invention is further elaborated.It should be pointed out that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The driving mechanism of the embodiment of the present invention, for external-combustion engine of the present invention; The external-combustion engine of the embodiment of the present invention, has the driving mechanism of the embodiment of the present invention.But driving mechanism of the present invention, is not limited to for external-combustion engine of the present invention, also goes for other external-combustion engine, to reduce costs and to be convenient to, start.
First introduce the driving mechanism of the embodiment of the present invention, then introduce the external-combustion engine of the embodiment of the present invention.
As shown in Figures 2 and 3, the external-combustion engine of the preferred embodiment of the present invention, can be divided into hot gas assembly, bent axle 7 and three constituent elements of driving mechanism, and transmission device wherein comprises fork group and connection rod set two-part.
One, hot gas assembly
As shown in Figures 2 and 3, described hot gas assembly is two groups, and every group of hot gas assembly comprises cylinder 1, heater 31, regenerator 32 and cooler 33, has power piston 21,23 and displacement piston 22,24 one on the other in each cylinder 1; Between power piston 21,23 and displacement piston 22,24, be formed with cold chamber 12, between displacement piston 22,24 and cylinder (bottom), be formed with hot chamber 11; Between hot chamber 11 and heater 31, between cold chamber 12 and cooler 33 respectively by connecting tube 34,35 mutual gas circuit be communicated with.
Wherein, the lower bound of power piston 21,23 motion is no more than the lower edge of connecting tube 35, and the upper bound of displacement piston 22,24 motions is no more than the upper edge of connecting tube 35, take the volume that guarantees cold chamber 12 can be within a period of time as 0 (can moment as 0).Conventionally, connecting tube 34 is arranged at the bottom of cylinder 1, replaces the lower bound of piston 22,24 close to the bottom of cylinder 1, but leaves certain space; Between displacement piston 22,24 and the sidewall of cylinder 1, also retain certain gap, to reduce the resistance to motion of displacement piston 22,24, increase the service life.
Between hot chamber 11, heater 31, regenerator 32, cooler 33 and cold chamber 12, gas circuit is connected to form gas channel successively, by external heat source, adds hot heater 31 so that the to-and-fro motion dilation between 12He Re chamber 11, cold chamber of the gas in gas channel does work by bent axle 7 periodic motions that driving mechanism was connected with drive power piston 21,23 and displacement piston 22,24.
As an example of power piston 21 and displacement piston 22 example, introduce the piston rod of this two-piston below, as shown in Figures 2 and 3, the lower end of the piston rod 25 of displacement piston 22 is connected to the home position of displacement piston 22, piston rod 25 is divided into two sections by hinging shaft 81, and the lower semisection of piston rod 25 is articulated with hinging shaft 81 through after the home position of power piston 21 with the upper semisection of piston rod 25; And power piston 21 has two piston rods 26,27, the symmetrical both sides that are arranged at piston rod 25,82,83 of the hinging shafts of piston rod 26,27 directly and power piston 22 hinged.Power piston 23 and the displacement piston rod 25,26,27 of piston 24 and the position of hinging shaft 82,83 are identical with displacement piston 22 with annexation and power piston 21, repeat no more!
Heat energy in hot gas assembly drives after piston movement, is converted into mechanical energy.
Two, bent axle
Bent axle 7 is mechanical energy output terminals of external-combustion engine, and bent axle 7 and driving mechanism are sealed in crankcase, and bent axle 7 has axle center 71 and connecting rod neck 72, can equipment output mechanical energy to the use being connected with external-combustion engine by bent axle 7.And between bent axle 7 and hot gas assembly, need the mechanical energy of piston movement be passed to bent axle 7 by driving mechanism.On axle center 71, be connected with flywheel.
Three, driving mechanism (being also the driving mechanism of the embodiment of the present invention)
Driving mechanism comprises connection rod set and fork group.
As shown in Figures 2 to 4, fork group comprises the limit fork 52,53 that fork 51 bilateral symmetry in fork 51He center, center arrange; The rotational plane of the rotational plane of center fork 51 and limit fork 52,53 is parallel to each other, and all pivotable pivots 50 that is arranged at of mid point of center fork 51 and limit fork 52,53, and the rotation step of limit fork 52 and limit fork 53 is consistent all the time; The two ends, left and right of center fork 51 are respectively by the upper end of hinging shaft 84 Hinged piston bars 25, and the two ends of limit fork 52,53 are respectively by the upper end of hinging shaft 85,86 Hinged piston bars 26,27.
Due to the both sides that are connected in same fork of the piston rod symmetry of same type piston, therefore can guarantee that the motion phase of the piston of same type differs 180 degree.
Connection rod set surrounds quadrilateral by four connecting rods; In this preferred embodiment, the length of four connecting rods is identical, and in the process of therefore rotating at bent axle 7, four connecting rods surround a rhombus all the time.And axle center 71 is length of connecting rod with the distance of pivot 50
doubly.Four connecting rods are respectively:
First connecting rod 61: as shown in Figure 4, first connecting rod 61Yu center fork 51 is one-body molded, and integrated advantage is to be convenient to component processing, is also convenient to keep the angle between first connecting rod 61Yu center fork 51, reduces maintenance cost.Therefore, first connecting rod 61 is also equivalent to be articulated with pivot 50 downward, to the direction of connecting rod neck 72, extends.Take first connecting rod 61 and the first fork 51 angles as the first angle, the first angle is 45 degree.
Second connecting rod 621,622: as shown in Figure 4, this connecting rod is a pair of, second connecting rod 621 is one-body molded with limit fork 52, and second connecting rod 622 is one-body molded with limit fork 53, and integrated advantage is the same.Therefore, second connecting rod 621,622 is also equivalent to be articulated with pivot 50 downward, to the direction of connecting rod neck 72, extends.Take second connecting rod 621,622 and limit fork 52,53 angulations as the second angle, the angle of the second angle is also 45 degree, therefore the second angle and above-mentioned the first angle complementary angle (two jiaos of sums be 90 claim complementary angle each other while spending) each other, to guarantee that displacement piston in same cylinder 1 and the motion phase of power piston differ 90 degree.
Third connecting rod 63: the upper end of third connecting rod 63 is articulated with first connecting rod 61 by hinging shaft 87, the lower end of third connecting rod 63 is articulated with the connecting rod neck 72 of bent axle 7.
The upper end of the 4th connecting rod 64: the four connecting rods 64 is articulated with second connecting rod 621,622 by hinging shaft 88, and hinging shaft 88 is a through-shaft, successively through second connecting rod 621, the 4th connecting rod 64 and second connecting rod 622; The lower end of the 4th connecting rod 64 is also articulated with the connecting rod neck 72 of bent axle 7.
For preventing movement interference between piston rod 25 and hinging shaft 88, the two ends of center fork 51 can be treated to upwards outward extending arc, to strengthen the distance between hinging shaft 84 and pivot 50, avoid piston rod 25 to encounter hinging shaft 88.
In other embodiments of driving mechanism of the present invention and external-combustion engine of the present invention, center fork 51 also can have a hinging shaft separately with limit fork 52,53, and as long as these three hinging shafts are conllinear; In addition, the first angle and the second angle also can be not equal to 45 degree, and the first angle and the second angle can also be got respectively the different mutual remaining angle such as (30,60), (36,54), (54,36) and (60,30); Further, can be that the length of third connecting rod 63 is greater than the length of first connecting rod 61, as long as guarantee that first connecting rod 61 and second connecting rod 621,622 are isometric, third connecting rod 63 and the 4th connecting rod 64 are isometric.
More than introduce each constituent element of the external-combustion engine of the preferred embodiment of the present invention, introduced again the working principle of external-combustion engine of the present invention below.
External-combustion engine of the present invention, driving mechanism does not need liquid lubrication, only need on bearing, add lubricating grease.When concrete use, the miscellaneous part except heater and cooler all can be sealed in a housing.Wherein, bent axle 7 and driving mechanism (comprising fork group and connection rod set) are sealed in crankcase, in crankcase, can be filled with pressurized gas.Flywheel and other power take-off are sealing separately in addition.
Between two cylinders 1, can be supported with transverse slat 41, on transverse slat 41, be provided with the column vertical with transverse slat 41 42, the axle center 71 of bent axle 7 is connected in column 42 bottoms rotationally, pivot 50 is fixedly connected on the top of column 42, the setting of transverse slat 41 and column 42, had both strengthened the support strength between two cylinders 1, prevented the displacement of two cylinders 1, also strengthen the intensity of external-combustion engine entirety, be also convenient to arrange bent axle 7 and pivot 50.Certainly, also can tripod be set on transverse slat 42 and carry out supporting pivot 50.
For each group in hot gas assembly, its working principle is identical with the same type external-combustion engine of prior art.As shown in Figure 2, take the cylinder 1 on the left side as example, as long as according to the assembling mode of prior art external-combustion engine, displacement piston 22 is adjusted to the poor position that differs 90 degree of motion phase with the initial position of power piston 21 and can start easily external-combustion engine.For example replace piston 22 while laying respectively at neutral position D upwards of top dead center A, movement tendency downward neutral position B, lower dead center C, movement tendency, power piston 21 lays respectively at D, A, B, C.And for the displacement piston of the same type of difference cylinder 1, relative poor motion phase adjusting to differed to 180 degree,, when displacement piston 22 lays respectively at above-mentioned A, B, C, D position, displacement piston 24 lays respectively at C, D, A, B position.Certainly, the amplitude that moves up and down of displacement piston 22 and power piston 21 can be identical can be not identical yet.
Still, take the cylinder 1 on the left side as example, the working procedure of external-combustion engine hot gas assembly is mainly divided into following four:
1, when displacement piston 22 arrives its top dead center A, while being also stroke cold junction, a large amount of gas, at hot chamber 11 expanded by heating, enters the cold chamber 12 of cylinder 1 by regenerator 32, promotes power piston 21 acting that moves up.
2, when displacement piston 22 is moved down into the downward neutral position B of movement tendency, cool and heat ends gas flow is suitable, and convergent-divergent is cancelled out each other, and power piston 21 arrives top dead center and do not do work, and by the inertia of flywheel, drives power piston 21 to move downward.
3, displacement piston 22 arrives lower dead center C, is also its stroke hot junction, and a large amount of gas shrinks at cold junction, pulls power piston 21 to move downward acting.
4, displacement piston 22 is moved upwards up to movement tendency neutral position D upwards, cool and heat ends gas flow is suitable, convergent-divergent is cancelled each other, power piston 21 arrives lower dead center and does not do work, lean on the inertia of flywheel and drive power piston 21 to move upward, the thermal cycle in the gas channel of hot gas assembly restarts.
Because the motion of piston drives the rotation of the fork being connected with piston, and then the rotation of the connecting rod that is fixedly connected with fork of drive, finally make the rotation in the axle center 71 being connected with connecting rod by connecting rod neck 72.The stroke that crankshaft journal 72 rotates is as follows, wherein supposes that the phase angle of crankshaft journal 72 when peak is 0 degree, and phase place during minimum point is 180 degree, is 90 degree when horizontal right side, and level is 270 degree during left side:
1, when displacement piston 22 arrives its top dead center A, displacement piston 24 arrives its lower dead center C, so center fork 51 is in that left end reaches top dead center, right-hand member reaches lower dead center, be that center fork 51 is in the minimum position of the highest right-hand member of left end, power piston 21 is positioned at neutral position B, and power piston 23 is positioned at neutral position D, therefore limit fork 52, 53 are in level, therefore second connecting rod 621, 622 become miter angle with level, and the acute angle that first connecting rod 61 becomes with level is less than 45 degree, both angles are larger, therefore crankshaft journal 72 is in fourth quadrant (between 270-360 degree), because the rotation trend of center fork 51 left ends is downward, limit fork 52, the rotation trend of 53 left ends upwards, therefore can drive crankshaft journal 72 to rotate to third quadrant (between 180-270 degree).
2, when displacement piston 22 arrives the downward neutral position B of movement tendency, displacement piston 24 arrives movement tendency neutral position D upwards, so center fork 51 is in level, now power piston 21 is positioned at top dead center A, and power piston 23 is positioned at lower dead center C, therefore limit fork 52, 53 left ends reach top dead center and right-hand member reaches lower dead center, it is limit fork 52, 53 are in the minimum position of the highest right-hand member of left end, therefore second connecting rod 621, 622 acute angles that become with level are greater than 45 degree, and first connecting rod 61 is 45 degree with horizontal angulation, both angles are less, therefore crankshaft journal 72 is in third quadrant (between 180-270 degree), because the rotation trend of center fork 51 left ends is downward, limit fork 52, the rotation trend of 53 left ends is downward, therefore can drive crankshaft journal 72 to rotate to the second quadrant (between 90-180 degree).
3, when displacement piston 22 arrives its lower dead center C, displacement piston 24 arrives its top dead center A, so center fork 51 is in that right-hand member reaches top dead center, left end reaches lower dead center, be that center fork 51 is in the highest position of the minimum right-hand member of left end, power piston 21 is positioned at neutral position D, and power piston 23 is positioned at neutral position B, therefore limit fork 52, 53 are in level, therefore second connecting rod 621, 622 become miter angle with level, and the acute angle that first connecting rod becomes with level is greater than 45 degree, both angles are less, therefore crankshaft journal 72 is in the second quadrant (between 90-180 degree), due to the rotation trend of center fork 51 left ends upwards, limit fork 52, the rotation trend of 53 left ends is downward, therefore can drive crankshaft journal to rotate to first quartile (between 0-90 degree).
4, when displacement piston 22 arrives neutral position D upwards of movement tendency, displacement piston 24 arrives the downward neutral position B of movement tendency, so center fork 51 is in level, now power piston 21 is positioned at lower dead center C, and power piston 23 is positioned at top dead center A, therefore limit fork 52, 53 left ends reach lower dead center and right-hand member reaches top dead center, it is limit fork 52, 53 are in the highest position of the minimum right-hand member of left end, therefore second connecting rod 621, 622 acute angles that become with level are less than 45 degree, and first connecting rod 61 is 45 degree with horizontal angulation, both angles are larger, therefore crankshaft journal 72 is in first quartile (between 0-90 degree), due to the rotation trend of center fork 51 left ends upwards, limit fork 52, the rotation trend of 53 left ends upwards, therefore can drive crankshaft journal 72 to fourth quadrant (between 270-360 degree), to rotate and repeat the process of 1-4.
In above-mentioned process, when third connecting rod 63 is through the moment in axle center 71, and the elongation line of third connecting rod 63 is through the moment in axle center, and at this moment connecting rod 63 is 0 in the power of the tangent direction of crankshaft journal 72, and bent axle is rotated further by the inertia of flywheel.
In the present invention, center fork 51 is definite with the visual actual conditions of amplitude of fluctuation of limit fork 52,53, and both amplitude of fluctuation can be identical, also can be not identical.
As implied above, the driving mechanism of the preferred embodiment of the present invention and the external-combustion engine of the preferred embodiment of the present invention, adopt fork group and single axle construction, by connection rod set and fork group, carry out the transmission between bent axle 7 and cylinder piston rod 25-27, by fork group, realize poor 90 degree that approach all the time of motion phase between the two-piston of each cylinder 1, because a set of fork group drives the power piston 21 of two groups of cylinders 1 simultaneously, 23 with displacement piston 22, 24, guarantee poor 180 degree that approach all the time of motion phase of the similar piston between two cylinders 1, thereby two power piston 21, 23 moving direction is just in time contrary, therefore in power piston 21, the volume of the high-pressure air in the process of 23 motions in crankcase remains unchanged relatively, thereby reduced the resistance that the pressurized gas volume compression because sealing in crankcase produces power piston, therefore external-combustion engine is started to the resistance forming very little, external-combustion engine is easily started.
And, the connections of all articulated elementss (hinging shaft 81-88) such as connection rod set, fork group and piston rod and the rotational support of rotating component are all realized by bearing, low to lubricating requirement, the non-maintaining cycle is long, needn't use the structure that turns of prior art more, do not need connect or support with bearing shell, saved cost and the shared space of oiling agent storage pool of oiling agent, therefore reduced the cost of transmission system.
So far to be construed as be explanation of the invention to mode of execution as herein described, but not limitation of the present invention.Scope of the present invention is not to be illustrated by above specification, but is limited by the claim of patent, this invention is intended to comprise all corrections that are equal to meaning and the scope of this patent claim.
Claims (10)
1. an external-combustion engine, is characterized in that, described external-combustion engine comprises hot gas assembly, driving mechanism and bent axle;
Described hot gas assembly is two groups, and every group of hot gas assembly comprises cylinder, heater, regenerator and cooler, has power piston and displacement piston one on the other described in each in cylinder; Between described power piston and described displacement piston, be formed with cold chamber, between described displacement piston and described cylinder, be formed with hot chamber;
The home position of described displacement piston is connected with the first end of first piston bar; Described first piston bar is through the center of circle of described power piston; Monosymmetric two second piston rods that are provided with of described first piston bar, described the second piston rod first end connects described power piston;
Described driving mechanism comprises connection rod set and fork group:
Described fork group comprises two limit forks that center fork and described center fork bilateral symmetry arrange, the second end of the hinged described first piston bar in two ends of described center fork, the second end of hinged described second piston rod in two ends of described limit fork; The plane parallel at the plane at fork place, described center and each described limit fork difference place and described center fork and described limit fork are coaxial in a pivot;
Described connection rod set surrounds quadrilateral by five connecting rods; Five connecting rods are:
First connecting rod equal in length and a pair of second connecting rod,, be fixedly connected with limit fork with described center fork respectively and keep the mutually remaining angle between 30-60 degree to downward-extension from described pivot;
Third connecting rod equal in length and the 4th connecting rod, the upper end of described third connecting rod is articulated with first connecting rod, the upper end of described the 4th connecting rod is articulated with described a pair of second connecting rod by hinging shaft, described hinging shaft is through-shaft, through described second connecting rod, the 4th connecting rod and second connecting rod, the lower end of described third connecting rod and the 4th connecting rod is articulated with the connecting rod neck of described bent axle successively;
Between described hot chamber, heater, regenerator, cooler and cold chamber, gas circuit is connected to form gas channel successively, by external heat source heat described heater so that the gas in described gas channel between described cold chamber and described hot chamber to-and-fro motion dilation to drive described piston by bent axle periodic motion that described driving mechanism was connected acting.
2. external-combustion engine as claimed in claim 1, is characterized in that, the angle of described center fork and described first connecting rod is 45 degree, and the angle of described limit fork and described second connecting rod is 45 degree.
3. external-combustion engine as claimed in claim 2, is characterized in that, the identical length of described five connecting rods etc.
4. the external-combustion engine as described in claim 1 or 2 or 3, is characterized in that, fork two ends, described center are outward extending arc upwards.
5. external-combustion engine as claimed in claim 3, is characterized in that, described center fork and described first connecting rod are one-body molded, and described limit fork and described second connecting rod are one-body molded.
6. external-combustion engine as claimed in claim 5, is characterized in that, described driving mechanism and described crankshaft seal, in crankcase, are sealed with pressurized gas in described crankcase.
7. the external-combustion engine as described in claim 5 or 6, it is characterized in that, between described two cylinders, be supported with transverse slat, on described transverse slat, be provided with the column vertical with described transverse slat, described bent axle is connected in described column bottom rotationally, and described pivot is fixedly connected on the top of column.
8. a driving mechanism, for the transmission between bent axle and the cylinder piston rod of external-combustion engine; Described driving mechanism comprises connection rod set and fork group:
Described fork group comprises two limit forks that center fork and described center fork bilateral symmetry arrange, the piston rod through the described power piston center of circle of the displacement piston that the two ends of described center fork arrange in order to the power piston below being hinged in cylinder, two piston rods of the described power piston that the two ends of described two limit forks arrange in order to the piston rod bilateral symmetry of hinged described displacement piston; The plane parallel at the plane at fork place, described center and described limit fork difference place and described center fork and described limit fork are coaxial in a pivot;
Described connection rod set surrounds quadrilateral by five connecting rods; Five connecting rods are respectively: first connecting rod equal in length and a pair of second connecting rod,, be fixedly connected with limit fork with described center fork respectively and keep the mutually remaining angle between 30-60 degree to downward-extension from described pivot; Third connecting rod equal in length and the 4th connecting rod, the upper end of described third connecting rod is articulated with first connecting rod, the upper end of described the 4th connecting rod is articulated with described a pair of second connecting rod by hinging shaft, described hinging shaft is through-shaft, through described second connecting rod, the 4th connecting rod and second connecting rod, the lower end of described third connecting rod and the 4th connecting rod is articulated with the connecting rod neck of described bent axle successively.
9. driving mechanism as claimed in claim 8, is characterized in that, described angle is 45 degree, the identical length of described five connecting rods etc.
10. driving mechanism as claimed in claim 8 or 9, is characterized in that, described center fork and described first connecting rod are one-body molded, and described limit fork and described second connecting rod are one-body molded, and fork two ends, described center are outward extending arc upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110069452.1A CN102182582B (en) | 2011-03-22 | 2011-03-22 | External combustion engine and transmission mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110069452.1A CN102182582B (en) | 2011-03-22 | 2011-03-22 | External combustion engine and transmission mechanism thereof |
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| Publication Number | Publication Date |
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| CN102182582A CN102182582A (en) | 2011-09-14 |
| CN102182582B true CN102182582B (en) | 2014-05-07 |
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| CN201110069452.1A Expired - Fee Related CN102182582B (en) | 2011-03-22 | 2011-03-22 | External combustion engine and transmission mechanism thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102787942B (en) * | 2012-08-31 | 2015-04-22 | 杨永顺 | External combustion engine and transmission mechanism thereof |
| CN103925111B (en) * | 2014-04-30 | 2015-11-18 | 郭远军 | A kind of parallel motion high low pressure power machine and application thereof |
| FR3041040B1 (en) * | 2015-09-14 | 2017-11-03 | Vianney Rabhi | DOUBLE EFFECT RETRACTOR CYLINDER WITH ADAPTIVE SUPPORT |
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|---|---|---|---|---|
| US5146749A (en) * | 1991-04-15 | 1992-09-15 | Wood James G | Balancing technique for Ross-type stirling and other machines |
| JP3134115B2 (en) * | 1997-05-15 | 2001-02-13 | 株式会社サクション瓦斯機関製作所 | Stirling Institution |
| CN101688500A (en) * | 2007-04-23 | 2010-03-31 | 新动力概念有限公司 | Stirling cycle machine |
| CN101846014A (en) * | 2010-05-21 | 2010-09-29 | 杨永顺 | Thermomotor |
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2011
- 2011-03-22 CN CN201110069452.1A patent/CN102182582B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5146749A (en) * | 1991-04-15 | 1992-09-15 | Wood James G | Balancing technique for Ross-type stirling and other machines |
| JP3134115B2 (en) * | 1997-05-15 | 2001-02-13 | 株式会社サクション瓦斯機関製作所 | Stirling Institution |
| CN101688500A (en) * | 2007-04-23 | 2010-03-31 | 新动力概念有限公司 | Stirling cycle machine |
| CN101846014A (en) * | 2010-05-21 | 2010-09-29 | 杨永顺 | Thermomotor |
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