CN205714421U - Piston-rotating internal combustion engine - Google Patents

Abstract

A kind of piston-rotating internal combustion engine, it is that to form an interior cross section be circular circular cylinder to semicircular circular cylinder by two interior cross sections, two are installed to piston in this cylinder body, two non-circular gears and two pairs of pistons are also had to be assembled into one respectively by drive mechanism, engage, by eccentric gear shaft power with two eccentric gears on same power output shaft；Also have special piston looling system and piston ring lubrication system；Cylinder body in burning expansion acting section part uses the cylinder sleeve that heat proof material makes, this section of cylinder sleeve is isolated with other bodies heat-barrier material, and the cylinder body of such work by combustion section remains at the condition of high temperature, the more conducively burning of gaseous mixture, mixture combustion cleaner, the thermal efficiency is more preferable；Also having the design of several many set cylinder body series, parallel combinations, have the plan of establishment that several non-circular gears and eccentric gear are meshed, in hgher efficiency, output is bigger.

Description

Piston-rotating internal combustion engine

Technical field

The present invention relates to a kind of internal combustion engine, particularly a kind of piston-rotating internal combustion engine.

Background technology

Existing reciprocating two-stroke internal-combustion engine fuel consumption is big, the thermal efficiency is low, pollution is big；Quartastroke engine air inlet and exhaust valve system complex, wasted work are big, piston, piston ring and cylinder body are in side Frotteurism all the time, add friction and increase the loss of power, the crankshaft connecting rod system of they complexity and the reciprocating motion of piston simultaneously not only consumes substantial amounts of power, and owing to the inertia motion of its complexity increases each stressed member dynamic load and the abrasion of bearing, also add the vibrations of electromotor, drastically influence the raising of rotating speed, thus make the performance improving internal combustion engine further be very restricted.The existing patent No.: 200510072363.7 rotary combustion engines, cannot be carried out between cylinder body and piston ring effectively lubricating, the most effective many group combustion engine combination designs, can not realize the application of high-power power machine tool.

Summary of the invention

The invention aims to improve the cylinder piston mechanism of existing reciprocating internal combustion engine, valve actuating mechanism and its crankshaft connecting rod system, improve between the gear box structure of existing rotary combustion engine, cylinder mechanism, solution existing rotary combustion engine piston ring and cylinder cannot effectively lubricating, solving multicomputer can not the problem of efficient combination and the rotary IC engine of a kind of novel piston that provides.

Rotary combustion engine provided by the present invention includes fuel feed system, cylinder system, rotor-support-foundation system, piston system, gear train, startup system, lubricating system, ignition system, injection system, cooling system, drive system；It is characterized in that: it includes the position of circular cylinder (28) and is provided with the oil groove (29) specializing in piston ring lubrication, being provided with the lubrication hole (30) of plum blossom-shaped distribution inside the cylinder body position of this oil groove section, lubrication hole (30) uses porous material filling.The ratio of the long diameter of axle of this structure non-circular gear and short shaft diameter is between 1.3:1 to 2:1；The arc length of this structure piston (14) is equal to or less than the angle of the minimum angle (45) of two non-circular gears.During this structure many groups combustion engine combination, multiple non-circular gears engage with one of them eccentric gear, it is also possible to each non-circular gear engages with an eccentric gear respectively；During many group combustion engine combination, by same power output shaft (11) output, it is also possible to couple output with shaft coupling (46).The cylinder body of the burning expansion section of acting part uses heat proof material additionally arrange cylinder sleeve (47), and this section of cylinder sleeve is isolated with other bodies heat-barrier material (48).

This rotary combustion engine is compared with prior art had the advantage that and is described as follows:

(1) this structure does not has crankshaft connecting rod system, does not has camshaft valve train yet, and simple in construction, part are few, acting performance is good, and moving parts is few, and fault is few, easy to maintenance, and volume is little, lightweight, power per liter is high, weight/power ratio is little.With compared with discharge capacity reciprocating four-stroke four-cylinder, characteristic part reduce more than 50%, weight saving more than 50%, be simple to manufacture, production cost is low.

(2) this structure does not has vibration and the noise that the reciprocating motion of crankshaft connecting rod system, the copsided operation of camshaft valve train and piston causes, dependency structure is all to rotate according to same direction, all inertia are obtained for sufficiently utilization, particularly between two-piston, during minimum clearance igniting, the speed of service of piston is the 75% of piston average running speed, and under any rotating speed, all can accomplish good balance, increasing substantially of smooth running, beneficially rotating speed.

(3) piston of this structure is firmly fixed on rotor, cut and rotate according to same direction all the time, so piston and cylinder body are entirely without friction, more there is no reciprocating engine upper piston, piston ring and cylinder block side friction phenomenon, vast power loss and cylinder body abrasion will not be added because of side friction, more will not cause poor sealing because side friction makes cylinder lose circle.

(4) doing two kinds of merits during each piston movement of this structure: expand and aerofluxus, air inlet and compression are all completed by a piston simultaneously simultaneously, so the friction of piston ring and cylinder body reduces 50%.

(5) this structure does not has valve train, is not limited by position size, can arrange multiple inlet and outlet hole in inlet and outlet position, its perforated area can reach preferable requirement completely, greatly reduce gas exchange loss, improve charge, also make waste gas discharge the most thorough.

(6) this structure can arrange multiple oil spout point and the burning of multiple spark plug, beneficially gaseous mixture, the beneficially application of thin black liquor technology at igniting.

(7) this structure all the time at one section not through the air inlet of cylinder position and the compression of gas combustion, so the fresh air temperature of inspiration is low, density is big, be conducive to strengthening compression ratio and improving efficiency of combustion.

(8) this structure has the special oil circuit for piston ring lubrication to arrange, and can obtain good lubrication between piston ring and cylinder body.

(9) the air inlet compression of this structure and burning work done be not in same cylinder block position, air inlet and air vent be not the most in same cylinder block position, tempering phenomenon will not occur in work, avoid with hydrogen as easily producing the difficult problem of tempering during fuel, so being more suitable for the application of hydrogen fuel.

(10) series, parallel of this structure combines design, compact conformation volume are little, and output is bigger, is particularly suitable for aviation and the application of navigation internal combustion engine.

(11) the cylinder body heat proof material of this structure acting section additionally arranges cylinder sleeve, and this cylinder sleeve is isolated with other bodies heat-barrier material, and the cylinder body of work by combustion section remains at the condition of high temperature, makes the cleaner of mixture combustion, and the thermal efficiency is more preferable, and power is higher.

Accompanying drawing explanation

Fig. 1 is the general assembly outside drawing of internal combustion engine；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the cut-open view of final assembly of Fig. 2 A-A position；

Fig. 4 is the plan view of cylinder block；

Fig. 5 is the top view of Fig. 4；

Fig. 6 is the oil circuit hole site schematic diagram arranged for the plum blossom-shaped of piston ring lubrication on cylinder body；

Fig. 7 is the sectional view at K-K position in Fig. 6；

Fig. 8 is the expanded view in the oil circuit hole that plum blossom-shaped is arranged in Fig. 7；

Fig. 9 is the oil duct position view on cylinder body for piston ring lubrication；

Figure 10 is the sectional view at B-B position in Fig. 9；

Figure 11 is the view that rotor coordinates face with cylinder body, is also the upward view of the non-section view of Figure 12；

Figure 12 is the sectional view at C-C position in Figure 11；

Figure 13 is the view of rotor and rotor engagement face, is also the top view of the non-section view of Figure 12；

Figure 14 is the schematic diagram of the sealing block on rotor；

Figure 15 is the left view of Figure 14；

Figure 16 is piston schematic diagram；

Figure 17 is the top view of Figure 16；

Figure 18 be Figure 16 left view；

Figure 19 is the sectional view at D-D position in Figure 18；

Figure 20 is the schematic diagram that combustor is arranged on piston flat surface middle part；

Figure 21 is Figure 20 The sectional view at E-E position；

Figure 22 is the schematic diagram of piston ring, is also the side view of 35 parts that Figure 24 piston ring processing component is split；

Figure 23 is Figure 22 The broken section enlarged drawing at F-F position；

Figure 24 is the component diagram specializing in the piston ring processing that circular cylinder uses；

When Figure 25 is two non-circular gear minimum angles and the state diagram inside gear housing of two eccentric gears；

Figure 26 be each gear run to as during Figure 25 four pistons in the state diagram of cylinder body；

The state diagram of each gear when Figure 27 is to export moment of torsion maximum in internal combustion engine acting；

Figure 28 be each gear run to as during Figure 27 four pistons in the state diagram of cylinder body；

Figure 29 is state diagram when having run a power cycle on the basis of Figure 26 of each piston；

Figure 30 is that the section of the local of armature spindle, rotor and piston illustrates that coolant flows through the schematic diagram of passage；

Figure 31 is that gear-box is arranged on cylinder body general assembly schematic diagram on one side；

Figure 32 is the sectional view of same view middle part in Figure 31；

Figure 33 is general assembly schematic diagram during two groups of internal combustion engine parallel connections such as Fig. 1；

Figure 34 is the top view of Figure 33；

Figure 35 is Figure 34 The cut-open view of final assembly of L-L position；

Fitting plane schematic diagram when two non-circular gears and an eccentric gear engage when Figure 36 is two groups of internal combustion engine parallel connections；

Cut-open view of final assembly when non-circular gear respectively engages with an eccentric gear when Figure 37 is two groups of internal combustion engine parallel connections；

Fitting plane schematic diagram when non-circular gear respectively engages with an eccentric gear when Figure 38 is two groups of internal combustion engine parallel connections；

Piston assembling schematic diagram inside cylinder body when Figure 39 is two groups of internal combustion engine parallel connections；

Fitting plane schematic diagram when three non-circular gears and an eccentric gear engage when Figure 40 is three groups of internal combustion engine parallel connections；

The distribution of cylinder body and piston assembling schematic diagram inside cylinder body when Figure 41 is three groups of internal combustion engine parallel connections；

The assembling schematic diagram that when Figure 42 is another the mode parallel connection of two groups of internal combustion engines, each gear engages respectively；

The distribution of cylinder body and piston assembling schematic diagram inside cylinder body when Figure 43 is two groups of internal combustion engine another way parallel connections；

Fitting plane schematic diagram when non-circular gear engages respectively with eccentric gear when Figure 44 is four groups of internal combustion engine parallel connections；

The distribution of cylinder body and piston assembling schematic diagram inside cylinder body when Figure 45 is four groups of internal combustion engine parallel connections；

Figure 46 be gear-box be arranged on cylinder body on one side time two internal combustion engines series connection after general assembly schematic appearance；

Figure 47 is gear-box general assembly outside drawing when being separately positioned on cylinder body both sides during two internal combustion engines series connection；

Figure 48 is the general assembly outside drawing that internal combustion engine is connected again in the case of parallel connection；

Figure 49 is the general assembly outside drawing that internal combustion engine is connected by shaft coupling in the case of parallel connection；

Figure 50 is the schematic diagram that combustion in IC engine dilation cylinder body additionally arranges cylinder sleeve；

Figure 51 is the sectional view of Figure 50 H-H position.

Detailed description of the invention

Below in conjunction with the accompanying drawings the specific implementation method of the present invention is described in further details.

Implementation one: this structure includes that by two interior cross sections be the annular cylinder that semicircular circular cylinder 3,4 forms that a set of interior cross section is circle, can also arrange with inlaying cylinder sleeve way, require design according to cooling outside cylinder sleeve in cylinder body；Gear-box is arranged on the both sides of cylinder body, as shown in Fig. 1,2,3,4,5；Air inlet 20 and the steam vent 21 of elongate in shape it is provided with on cylinder body, the strip in inlet and outlet hole is that the direction rotated according to piston is arranged, inlet and outlet hole could be arranged to circular arc of piston-advance direction, other end can be flush, makes what piston ring can smooth to pass through while being beneficial to be rapidly completed intake and exhaust；The place particularly started at air vent, that can be opened by air vent is more roomy, so can reduce the angle of exhaust advance angle as far as possible, is beneficial to allow combustion gas more fully burn, and delivery temperature so can be made lower, and the pollution to air is less；Inlet and outlet hole all need not special valve and opens and closes；According to size and the design requirement of cylinder diameter, a cylinder body can arrange one to five such air inlet and steam vent, the place of the built-in dispensing rotor of cylinder body is provided with closure gasket groove 19, as shown in Figure 5；Equipped with sealing ring in closure gasket groove, sealing ring is provided with spring function (not shown), to ensure sealing effectiveness.On cylinder body, near air inlet, the position of 28 is provided with the oil groove 29 specializing in lubricating oil circulation, at this oil groove, cylinder body inside line is provided with the oilhole 30 according to plum blossom-shaped distribution, oilhole 30 is filled with porous material, so that lubricating oil can be made to ooze out, ensure piston by time piston ring is carried out effectively lubricating, in figure, arrow is the flowing signal of lubricating oil, as shown in Fig. 6,7,8；The oil duct 32 specializing in lubricating oil circulation can also be provided with in the position of 31 near the enterprising QI KOU of cylinder body, oil duct porous material 33 seals, so that lubricating oil can be made to ooze out, ensure piston by time piston ring is carried out effectively lubricating, such as Fig. 9, shown in 10, in figure, arrow is the flowing signal of lubricating oil.Cylinder body is built with two rotors 12,13, as shown in Figure 11,12,13；Closure gasket groove 18 and sealing block groove 17 it is provided with on this rotor, equipped with sealing ring (not shown) inside closure gasket groove, equipped with sealing block 25 inside sealing block groove, such as Figure 14, shown in 15, sealing ring and sealing block are provided with spring performance (not shown), to ensure sealing effectiveness；The passage 15,16 for the circulation of piston coolant it is additionally provided with on rotor, passage 15,16 seals with encapsulant and is provided with the access opening (not shown) connecting the passage that is connected, the access opening 27 that coupled rotor passage 16 and piston channel 22 communicate is had on sealing block 25, to ensure that coolant flow is unimpeded, as shown in Figure 11,12,13,14；If coolant uses lubrication oil like material, sealing block 25 can make of porous material, beneficially the oozing out, with to playing good lubrication between rotor of lubricating oil；The flowing of coolant is completed by coolant pump.Firmly equipped with four identical piston 14(A, B, C, D on the two ends of two rotors), piston is provided with piston ring groove, is fitted with and specializes in the piston ring 35 that circular cylinder uses；The breach 26 of certain distance it is provided with on piston ring, size two rotors of foundation of breach distance thickness altogether and design requirement determine, it is parameter basis that the processing of the piston ring specializing in ring-shape cylinder interal use is based on the interior shape of ring-shape cylinder interal, requirement design circular ring part 36 according to piston ring, then according to requiring to be divided into standard piston ring 35, according to carrying out the processing of piston ring based on the parameter of standard piston ring 35, as shown in Figure 22,23,24；Because piston runs according to same direction all the time, so the corner angle 34 that piston ring direction of advance is on one side are processed as arc, or by direction of advance while arranging and there is a fixed inclination gradient (not shown), it is beneficial to the molding of lubricating oil film and the operation that piston ring is smooth, such as Figure 22, shown in 23, Figure 23 is that in Figure 22, F-F is to the partial enlarged drawing in cross section, and in figure, arrow indication is piston-advance direction.Also having the cooling passage 22 for piston cooling on piston, passage encapsulant seals (not shown),As shown in Figure 16,18,19；Being provided with the passage 38 for the circulation of piston coolant on one of them armature spindle, to the cooling flow path passage of piston as shown in figure 30, it is the flow direction of coolant that arrow points to coolant；If coolant uses lubrication oil like material, the sealing of piston upper channel 22 could be arranged to the form of oil piston ring, and this oil piston ring porous material makes (not shown), is beneficial to oozing out of lubricating oil, it is ensured that cylinder body is carried out effectively lubricating.The Zhou Jing of angle and circular cylinder that the arc length of piston is based on the minimum angle 45 of two non-circular gears 7,8 is that parameter determines, the arc length of piston equals to or less than but more than the angle of minimum angle 45, but must not must not be more than the angle of minimum angle 45；During the perpendicular position of axial line of the axis of two eccentric gears and the axle center of eccentric gear and non-circular gear, the angle of two non-circular gears is minimum angle, as shown in figure 25；In order to be more beneficial for the burning of gaseous mixture, the acting face of each piston is provided with combustor 23, as shown in Figure 16,17,18,19；When gaseous mixture compression ignition mode is lighted, combustor can also be arranged on the position of the plane 24 of piston, such as Figure 20, shown in 21.When piston goes to such as Figure 26, multiple oil spout point and the burning of multiple spark plug, beneficially gaseous mixture, the beneficially application of thin black liquor technology can be set at the ignition location on cylinder body between piston A, B.Small combustion chamber can also be set in the place of assembling spark plug, be beneficial to more preferable ignition.When two non-circular gears 7,8 are in minimum angle 45, when piston aerofluxus terminates on the basis of the intermediate line position of two pistons, the arc length of one piston is i.e. the position that air inlet terminates plus intake lag angle 36, the arc length of one piston is i.e. the position that steam vent starts plus exhaust advance angle 37, position that air inlet starts and the position that air vent terminates are arranged according to the requirement of inlet and outlet angle overlap, as shown in figure 26.Also having two non-circular gears 7,8 to be separately mounted on two roots rotor axles 5,6, wherein a roots rotor axle center is provided with oil leab, and oil leab is drawn from the middle part of two rotors, makes outflow of lubrication oil for lubricating (not shown) between two rotors；Also have two identical eccentric gears 9,10, be arranged in a reverse direction on same power output shaft 11；Wherein non-circular gear 7 is assembled together with rotor 13 by armature spindle 5, and non-circular gear 8 is assembled together with rotor 12 by armature spindle 6；Non-circular gear 7 is meshed with eccentric gear 9, and non-circular gear 8 is meshed with eccentric gear 10, as shown in Fig. 3,25,27；The girth of non-circular gear is off the twice of gear, two eccentric gear prior art Balance Treatment, and the place that each between centers rotates is according to needing to be provided with bearing.

Implementation two: being provided with two interior cross sections is semicircular circular cylinder 42,43, forming a set of interior cross section is circular ring-shape cylinder interal, and gear box cover 41 is combined as a set of internal combustion engine cylinders；It is same on one side that gear is all disposed within cylinder body, and the inside is separately mounted on two rotors equipped with two rotors 12,13, two roots rotor axles 39,40；Wherein armature spindle 39 is hollow, is enclosed within armature spindle 40 to couple non-circular gear 8 and rotor 13 and is assembled into one, and non-circular gear 7 and rotor 12 are coupled through armature spindle 39 and be assembled into one by armature spindle 40, such as Figure 31, shown in 32；Further, armature spindle 40 be provided centrally with oil leab, oil leab is drawn from the middle part of two rotors, for outflow of lubrication oil for lubricating (not shown) between two rotors；In addition, other designs are all identical with implementation one.

Implementation three: on the basis of implementation one, two groups of internal combustion engines are carried out parallel connection, it is provided with two non-circular gears 7 and two non-circular gears 8, one eccentric gear 9 and an eccentric gear 10, two non-circular gears engage with one of them eccentric gear, jointly by a power output shaft output；As shown in Figure 33,34,35,36,8 pistons are respectively assembled at inside two cylinder bodies, and the distribution of cylinder block and piston is as shown in figure 39.

Implementation four: on the basis of implementation one, two groups of internal combustion engines are carried out parallel connection, it is provided with two non-circular gears 7 and two non-circular gears 8, two eccentric gears 9 and two eccentric gears 10, each non-circular gear engages with an eccentric gear on same power output shaft respectively, by same power output shaft output, such as Figure 37, shown in 38；8 pistons are respectively assembled at inside two cylinder bodies, as shown in figure 39.

Implementation five: on the basis of implementation one, three groups of internal combustion engines are carried out parallel connection, it is provided with three non-circular gears 7 and three non-circular gears 8, one eccentric gear 9 and an eccentric gear 10, every three non-circular gears engage with one of them eccentric gear jointly, by a power output shaft output；As shown in figure 40；Can also arrange three eccentric gears 9 and three eccentric gears 10, each non-circular gear engages with an eccentric gear on same power output shaft respectively, by same power output shaft output；12 pistons are respectively assembled at inside three cylinder bodies, as shown in figure 41.

Implementation six: on the basis of implementation one, by another greater compactness of mode, two groups of internal combustion engines are carried out parallel connection, it is provided with two non-circular gears 7 and two non-circular gears 8, two eccentric gears 9 and two eccentric gears 10, each non-circular gear engages with an eccentric gear on same power output shaft respectively, by same power output shaft output, as shown in figure 42,8 pistons are respectively assembled at inside two cylinder bodies, as shown in figure 43.

Implementation seven: on the basis of implementation one, four groups of internal combustion engines are carried out parallel connection, it is provided with four non-circular gears 7 and four non-circular gears 8, two eccentric gears 9 and two eccentric gears 10, each two non-circular gear engages with one of them eccentric gear on same power output shaft, jointly by a power output shaft output；As shown in figure 44.Can also arrange four eccentric gears 9 and four eccentric gears 10, each non-circular gear engages with an eccentric gear on same power output shaft respectively, by same power output shaft output；16 pistons are respectively assembled at inside four cylinder bodies, as shown in figure 45.

Implementation eight: on the basis of implementation one and implementation two, uses the mode of series connection to be combined by internal combustion engine more than two, by same power output shaft output；Such as Figure 46, shown in 47.

Implementation nine: on the basis of implementation three, four, five, six, seven, connects, by same power output shaft output, as shown in figure 48 on the basis of the internal combustion engine parallel connection of many groups again.

Implementation ten: during many group internal combustion engine series connection, or when the internal combustion engine after the parallel connection of many groups is connected again, often group needs the power output shaft between the internal combustion engine of series connection can be coupled by the connecting mode of shaft coupling 46, is so more beneficial for I& M, as shown in figure 49.Many group internal combustion engines in parallel or in series time, two eccentric gears that two eccentric gears of same unit or many group internal combustion engines share must be to be arranged on same power output shaft with contrary angle (180 °)；Be not same unit be not the most that the setting angle of the eccentric gear that many group internal combustion engines share can be installed according to design needs, the mode being respectively adopted multiple angles, but two eccentric gears of often group internal combustion engine reply must be to install with contrary angle.

Implementation 11: use heat proof material that cylinder sleeve 47 is additionally set the cylinder body of the burning expansion section of acting part, this section of cylinder sleeve is isolated with other body heat-barrier materials 48, such as Figure 50, shown in 51, so cylinder body of work by combustion section remains at the condition of high temperature, more conducively the burning of gaseous mixture, mixture combustion the cleanest, the thermal efficiency is more preferable, power is higher, and in addition, other are all identical with implementation one.

The work done principle of this structure is such thatIt is that four piston each two are set to a pair, every pair of piston is assembled into one by drive mechanism and an elliptic gear, the effect of two non-circular gears and two eccentric gear outer corner differences makes the rotating speed of two pairs of pistons produce speed discrepancy, two pairs of pistons are made to do the motion of before and after's tracing type at same annular cylinder, so that the volume of each piston space changes, complete air inlet, compression, burning expansion, the coherent power cycle of aerofluxus one, during acting, four pistons and two elliptic gears rotate the most at same direction；Eccentric gear group and flywheel at the uniform velocity rotate under effect of inertia, by eccentric gear shaft power.Its program is as shown in Fig. 3,25,26,27,28,29, and in figure, non-circular gear 7 is coaxial with piston B, D, and non-circular gear 8 is coaxial with piston A, C；When each piston runs to during such as Figure 26, compress complete between piston A, B and started burning expansion acting, having done work between B, C complete；Steam vent opens aerofluxus the most in advance；Waste gas is drained between C, D the intake and exhaust angle overlap state that is in, has passed through scavenging program while starting air inlet further by waste gas emptying；It is complete air inlet program between D, A and starts compression, but now between D, A, still suffering from negative pressure, so air inlet does not completely closes, making aeration quantity be further increased；As shown in figure 25, now piston B and D continues to rotate by clockwise quickly acceleration the situation of the most each gear, A and C makees underdrive by continuing clockwise；When each piston runs to during such as Figure 28, and as shown in figure 27, now piston A and C is the slowest for the situation of each gear, B and D is the fastest, and the speed discrepancy of two rotors is maximum, and the moment of torsion now produced by non-circular gear 7 is maximum；Now piston A and C starts to accelerate, B and D reduces speed now；Now burn away between piston A, B expansion work, continues aerofluxus between B, C, continues air inlet between C, D, and D, A continue compression；When individual piston operation is to during such as the position of Figure 29, complete an expansion working between piston A, B, between C, B, complete an aerofluxus, between D, C, complete an air inlet, completing first compression between D, A, the most each piston space completes an aerofluxus, air inlet, compression, work by combustion circulation simultaneously；So, when piston often rotates a circle, the most each piston goes to, as during Figure 26 during same position, complete four power cycles altogether again；This needs the circulation that reciprocating four-stroke four-cylinder internal combustion engine crank rotation is made for two weeks.

During acting, when two piston spaces complete compression, gaseous mixture starts burning expansion, although the opposite force that the most adjacent two pistons are subject to is reciprocity, but now four pistons and two non-circular gears are the most atwirl；Eccentric gear group and flywheel at the uniform velocity rotate under effect of inertia, the most now the speed of service of piston is approximately the 75% of piston average running speed, still fast forward through according to former direction under they common effect of inertia, and interacted by two groups of gears, so the reason that will not be expanded because of combustion gas by the piston of opposite force and reversely rotate；Great variety is there is in the moment of torsion that the power that the most adjacent two pistons are subject to acts on power output shaft by gear train in moment, two pairs of gearings are in the difference in torque of power output shaft, it it is i.e. the real output of acting piston, being learnt by experiment measuring and calculating, when the ratio of the long diameter of axle of this structure non-circular gear and short shaft diameter is 2:1, peak torque difference is 50:1；When the ratio of the long diameter of axle and short shaft diameter is 1.9:1, peak torque difference is approximately 35:1；When the ratio of the long diameter of axle and short shaft diameter is 1.8:1, peak torque difference is approximately 24:1；When ratio is 1.7:1, peak torque difference is approximately 17:1；When ratio is 1.6:1, peak torque difference is approximately 12:1；When ratio is 1.5:1, peak torque difference is approximately 8:1；When ratio is 1.4:1, peak torque difference is approximately 6:1；When ratio is 1.3:1, peak torque difference is approximately 4:1；So, the present invention is because the loss that opposite force is subject to is minimum.

In addition to arrangement above, it also includes fuel feed system, startup system, lubricating system, ignition system, injection system, cooling system, drive system ...；These are all identical with existing rotary combustion engine and reciprocating internal combustion engine.

Claims (8)

1. a piston-rotating internal combustion engine, includes fuel feed system, cylinder system, rotor-support-foundation system, piston system, gear train, startup system, lubricating system, ignition system, injection system, cooling system, drive system；It is characterized in that: it includes and is provided with the oil groove (29) specializing in piston ring lubrication at the position of circular cylinder (28), being provided with the lubrication hole (30) of plum blossom-shaped distribution inside the cylinder body position of this oil groove section, lubrication hole (30) uses porous material filling.

2. a piston-rotating internal combustion engine, includes fuel feed system, cylinder system, rotor-support-foundation system, piston system, gear train, startup system, lubricating system, ignition system, injection system, cooling system, drive system；It is characterized in that: the arc length of piston (14) can not be more than the angle of the minimum angle (45) of two non-circular gears.

3. piston-rotating internal combustion engine as claimed in claim 2, it is characterised in that: during many group combustion engine combination, multiple non-circular gears engage with one of them eccentric gear.

4. piston-rotating internal combustion engine as claimed in claim 2, it is characterised in that: during many group combustion engine combination, each non-circular gear engages with one of them eccentric gear respectively.

5. piston-rotating internal combustion engine as claimed in claim 2, it is characterised in that: during many group combustion engine combination, by same power output shaft (11) output.

6. piston-rotating internal combustion engine as claimed in claim 2, it is characterised in that: during many group combustion engine combination, power output shaft shaft coupling (46) couples output.

7. piston-rotating internal combustion engine as claimed in claim 2, it is characterised in that: the long diameter of axle of non-circular gear is 1.3:1 to 2:1 with the ratio of short shaft diameter.

8. piston-rotating internal combustion engine as claimed in claim 2, it is characterised in that: the cylinder body of the burning expansion section of acting part uses heat proof material additionally arrange cylinder sleeve (47), and this section of cylinder sleeve is isolated with other bodies heat-barrier material (48).