CN201215038Y

CN201215038Y - Rotor engine

Info

Publication number: CN201215038Y
Application number: CNU2008200627696U
Authority: CN
Inventors: 刘若丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-02
Filing date: 2008-04-02
Publication date: 2009-04-01
Anticipated expiration: 2018-04-02

Abstract

The utility model relates to a rotary engine which belongs to rotary piston-type engines. The rotary engine is composed of a stator assembly and a rotor assembly. Both axial sides of a gas inlet and a gas outlet on the inner circle wall of a stator are provided with two fixed inner circle gear rings, the stator is respectively provided with the gas inlet and the gas outlet at intervals of 90 DEG C and a spark plug hole which is arranged at the middle point of the gas inlet and the gas outlet; the rotor assembly is composed of a rotor body, rotor main shafts, a crank shaft and crank shaft gears; the interior of the rotor body is axially provided with a cylinder hole in which a piston and a connecting rod are arranged, the crank shaft is mounted on a horizontal crank shaft hole through a bearing, the crank of the crank shaft is connected with the piston connecting rod, the two crank shaft gears on the crank shaft are respectively meshed with the two inner circle gear rings in the inner cavity of the stator, the transmission ratio of the crank shaft gears and the inner circle gear rings is 1:2, the two rotor main shafts are mounted on the right end cover and the left end cover of the stator through bearings, and the two main shafts are fixedly connected with the rotor body; and the cylinder hole is provided with a gas sealing mechanism. The utility model deletes the valve system so as to fundamentally solve the problems of valve timing and valve stroke, thereby having the advantages of simple structure, smaller volume and high compression ratio.

Description

Rotary engine

Technical field

The utility model relates to explosive motor, and particularly rotary engine is that rotary engine is made the field.

Background technique

The conventional reciprocating reciprocating engine has 100 years of development history, develop into present widely used piston type cam air-distribution engines, no matter be tightness, lubricity, the thermal diffusivity from motor, still the reliability on this three property basis, durability have all quite been improved ripe.But in Global Greenhouse Effect crisis and energy-intensive today; the internal-combustion engine that uses as the very huge motor car engine of use amount and other form; it is one of major reason that causes these crises; therefore; synergy and energy-saving and emission-reduction have proposed requirements at the higher level to internal combustion engine, and these requirements have following several respects problem to be resolved to piston type cam air-distribution engines:

1, valve opening problem: valve opening and relevant valve timing thereof and the problem of valve stroke.

Valve opening is meant the maximum open amount of exhaust valve or intake valve, the valve opening of existing conventional piston formula cam air-distribution engines can not surpass 50% of cylinder bore, this has just limited, air displacement can not satisfy the needs of motor under various rotating speed operating modes, therefore, no matter be from energy saving, reduce toxic emission, still power gives full play to, existing conventional piston formula motor all must solve the problem of valve timing and valve stroke as far as possible, in fact now which kind of does not also have start function to resolve the problem of this two aspect fully simultaneously, the valve timing when even if some very advanced motor adopts dynamic deflector cam corner to satisfy different rotating speeds, because cam deflection only may be unidirectional, unidirectionally just meaning, valve is opened in advance, certainly also close in advance, vice versa.Therefore, advanced motor has adopted segmented (dividing the different rotating speeds stage to switch the length cam) to change valve stroke simultaneously, valve duration is prolonged, and this must have three problems: (1), segmentation just can not be continuous, but rotation speed change is continuous; (2), the protruding arm of cam is long more, the relative opening degree of valve is big more, valve stroke is just long more, but protruding arm is long more, and the circle radius of cam is also big more, therefore, effectively the linear velocity of operation point cam head is also fast more, so it is limited that the long-range cam after the switching changes valve duration; (3), change valve timing and valve stroke, certainly lead to exhaust and air inlet stack, though exhaust backhaul resistance was not compared with the air inlet deficiency greatly when the generation stack did not more produce stack, it is still relative favourable with the air inlet stack to produce exhaust, but determining to disadvantageously period of exhaust is exactly that working stroke finishes in advance in advance, and premature termination more seriously burns, because people always wish that working stroke is longer; Period of combustion, long more burning was abundant more, discharged cleaner; The unblocked power of exhaust backhaul; The intake stroke abundance.The reason that produces these problems all is because valve opening is limited, and to leave time of exhaust and air inlet for just short more when engine speed is high more, and air to open degree problem is just obvious more.

2, the problem of stroke power consumption:

Existing conventional piston formula cam air-distribution engines has at least following two aspects to consume stroke power in a large number, but is to be used to keep motor to rerun the power that must consume, and essence is that the part energy consumption is on non-useful horsepower.

(1), the power that distribution device consumed: drive a whole set of cam mechanism and comprise that cam is non-circular body running (resistance), protruding arm will overcome outside the pairing numerous valve return power of valve the torsion of valve opening, also comprises the valve timing mechanism of hydraulic way or alternate manner driving and the power that the valve stroke mechanism consumes.In addition, contact for point between cam and push rod or the rocking arm or line contacts, there is component problem easy to wear in cam mechanism.

(2), the valve stroke power that unfolding mode consumed in cylinder: when the explosion stroke finishes, inner pressure of air cylinder reaches maximum value, be that unit area pressure reaches maximum in the cylinder, desire in cylinder, to push open exhaust valve this moment, must consume the stroke power that equates with the unit area pressure of exhaust valve in cylinder, so (to comprising many valves form cylinder) exhaust valve area summation in cylinder is big more, institute's engine power that is consumed is just many more.But the area summation of exhaust valve in cylinder is big more, and it is favourable more that abundant exhaust is reduced the backhaul resistance, the contradiction of Here it is power and energy consumption.

(3), the problem of compression ratio:

Valve is unfolding mode in cylinder, must take certain space, has limited the extreme value of compression ratio, has not given play to also due combustion value efficient (describing in detail in the text); Usually strengthening compression ratio has dual mode, and the one, increase displacement; The 2nd, increase more fuel mixture amount (as turbosupercharging: be to make turbo-power with the waste gas impulse force, force in cylinder, to be pressed into more air and fuel mixture amount when being rotated in intake stroke by turbine), but this dual mode all can consume more fuel oil;

(4), manufacture cost height, manufacturing process complexity problem:

Make existing conventional piston formula motor, the necessary accurate distribution device of supporting manufacturing, and consume a large amount of high-quality steel and financial resources;

(5), the advantage of existing conventional piston formula motor:

As widely used piston type cam air-distribution engines, owing to solved the basic three property requirements to motor of tightness, lubricity, thermal diffusivity on its mode, on this basis reliability, durability are indubitable.Therefore, under this background technique, more high performance motor be proposed, the basic three property requirements of tightness, lubricity, thermal diffusivity must be structurally solved fully motor.

Chinese patent file disclosed " a kind of rotary engine " (CN1828028A) and other rotary engine such as CN1478991A, CN1490495A etc.Above-mentioned rotary engine is structurally had nothing in common with each other, and in general, they are still lacking perfect supporting design aspect the applicabilities such as lubricity, tightness and thermal diffusivity of motor.

The model utility content

The purpose of this utility model provides a kind of rotary engine, fundamentally solve the problem that existing piston type cam air-distribution engines exists valve timing and valve stroke, make valve opening reach 100% of cylinder diameter, make stroke power be used for the power output of engine rotor fully, thereby significantly save fuel oil, and under the cylinder total volume certain condition, improve engine compression ratio, having given play to piston engine should have power and burn gas efficient, improves exhaust emission quality; Make engine structure more simple compact, volume is littler.

The purpose of this utility model is achieved in that a kind of rotary engine, mainly form by stator assembly and the rotor assembly that is arranged in the stator, stator assembly mainly is made up of stator and left and right end cap, be installed with two internal-round gear torus on the forward and backward position of the round cavity of stator, the above and below of the round cavity center line circle upper edge radial level direction of stator, 90 degree have inlet hole and exhaust port and are positioned at inlet hole and the spark-plug hole of exhaust port mid point opposing side at interval; Rotor assembly mainly is made up of rotor body, rotor main shaft, bent axle; Radially be provided with cylinder-bore on the rotor body, piston and connecting rod are packed into wherein, the horizontal central line below is provided with crankshaft hole vertically, bent axle through Bearing Installation on crankshaft hole, the crank throw of bent axle is connected with piston rod, two crankshaft gears are installed on the bent axle, two crankshaft gears respectively be fixed on stator on two internal-round gear torus be meshed, the velocity ratio of the two is 1:2, respectively on the left and right end cap of Bearing Installation at stator, and two main shaft the inners connect firmly respectively on the left and right end face of rotor body as two rotor main shafts of pto; Also be provided with gas seal mechanism on the cylinder-bore outer end opening position of rotor body.

The beneficial effects of the utility model are:

1, as motor of new generation, solved the problem of valve opening fully, and the problem of valve timing and valve stroke, that is: the inlet and outlet door reaches desirable aperture, make valve opening reach 100% of cylinder diameter, thereby do not need to solve again the problem of valve timing and valve stroke.

2, deallocation mechanism of qi structure is used for the running of engine rotor power output fully with stroke power, thereby significantly saves fuel oil; Deallocation mechanism of qi structure also makes engine running quieter, more smooth and easy.

3, do not increasing combustion chamber volume and do not increasing under the condition of combustion gas, the compression ratio of designed engines makes motor give play to due bigger efficient (comparing with conventional engines) as required.In addition, when high compression ratio can satisfy the slow-speed of revolution or idling, the fuel oil and the abundant mixed problem of air of low flow velocity, and the rapid problem that heats up of low temperature combustion gas.

4, the manufacturing engine structure is more simple, and manufacture cost significantly reduces, and volume is littler; With unit assembly mode assembled engines, the replacing and the maintenance of engine components become simpler and more direct.

5, outside the lubricating system of inheriting piston and crankshaft link rod motion, to the tightness of rotor combustion chamber high request, and the rotor body lubricity, thermal diffusivity has proposed brand-new, reliable solution.

6, the center of gravity of whole motor is lower than the center of gravity of existing conventional engine, balance more in running up.

The advantage of the utility model a new generation motor will be later in conjunction with setting forth the narration of engine operating cycle process is further concrete.

Description of drawings

Fig. 1-1, Fig. 1-2, Fig. 1-3, Fig. 1-4, Fig. 1-5 are respectively stator (along shaft axis mid point vertical profile) plan view, (along the waterway vertical profile) plan view, plan view and (dissecing along inlet hole and spark-plug hole) bottom view and stereogram;

Fig. 2-1, Fig. 2-2, Fig. 2-3 are respectively plan view, left view and the plan views of rotor assembly;

Fig. 3-1, Fig. 3-2, Fig. 3-3, Fig. 3-4 are respectively plan view, left view, plan view and the stereogram of rotor body;

Fig. 4 is the overall erection drawing of the utility model (axially analysing and observe from the suction port of stator shown in Fig. 1-2 center line);

Fig. 5 is the overall erection drawing of the utility model (vertically analysing and observe from stator shaft orientation shown in Fig. 1-2);

Fig. 6 is the overall erection drawing of the utility model (analysing and observe to the midline along the stator footpath);

Fig. 7-1, Fig. 7-2, Fig. 7-3 are respectively plan view, left view and the plan views of tension-type compression ring watt;

Fig. 7-the 4th, compression ring shown in Fig. 7-1 is watt from freely opening shape to the schematic representation that compresses shape;

Fig. 8-1, Fig. 8-2, Fig. 8-3, Fig. 8-4 are respectively plan view, left view, plan view and the stereogram of tension-type cylinder port compression ring;

Fig. 8-the 5th, the free open configuration figure of the compression ring of tension-type cylinder port shown in Fig. 8-3;

Fig. 9-the 1st, the plan view of rotor body;

Fig. 9-the 2nd is embedded the structural drawing behind compression ring watt and the cylinder implication ring on the rotor body shown in Fig. 9-1;

Fig. 9-the 3rd, compression ring watt hoop sectional view;

Figure 10-1, Figure 10-2, Figure 10-3 are respectively plan view, left view and the plan views of rotor main shaft;

Figure 11 is the stereogram after rotor body shown in Fig. 3-4 is installed bent axle support and bent axle;

Figure 12-1, Figure 12-2 is respectively the plan view and the stereogram of bent axle support;

Figure 13-1, Figure 13-2, Figure 13-3 are respectively watt plan view, left view and the plan views that cooperate with the described compression ring of Fig. 8-1 of compression ring shown in Fig. 7-1;

Figure 14-1, Figure 14-2, Figure 14-3 are respectively that compression ring shown in Figure 13-1 watt, compression ring are installed in the plan view on the rotor body, left view and plan view shown in Fig. 3-1;

Figure 15 Figure 16 is respectively two kinds of schematic representation that the utility model rotary engine can be brought into play compression ratio extreme value effect;

Figure 17-1, Figure 17-2, Figure 17-3 are respectively plan view, right elevation and the plan views (assembling compressive state) of sweeping oil ring;

Figure 18-1, Figure 18-2, Figure 18-3, Figure 18-4 are respectively plan view, left view, plan view and the stereograms that power push-rod is set on the rotor body;

Figure 19-1, Figure 19-2 be respectively inlet hole on the stator and exhaust port during for oval abnormity plane outspread drawing and the plan view of inlet and outlet hole and cylinder port compression ring;

Figure 19-3, Figure 19-4 is respectively that stator is enterprising, sectional drawing and stereogram when exhaust port is the ellipse abnormity;

Figure 19-the 5th, stator is enterprising, the stereogram when exhaust port is oval;

Figure 20～27 are respectively rotor assemblies when rotating along clockwise direction in rotor, the working procedure schematic representation of the different time points of cylinder piston;

Figure 28 is the structural drawing of series connection in-line four cylinder rotary engine.

Embodiment

The stator of rotary engine and rotor structure and effect, and sealing, lubricated, radiating mode:

1, the stator structure of motor: stator assembly is made up of stator and left and right end cap, and left and right end cap is through being bolted on the stator.(Fig. 1 is meant that Fig. 1-1, Fig. 1-2, Fig. 1-3, Fig. 1-4 etc. are numbered all figure of 1 beginning referring to Fig. 1.Down together).

(1), stator profile and working zone: as side view among Fig. 1, the horizontal and vertical lines of stator circle, just in time motor stator is divided into 4 zones, we are starting point 0 degree with clock zero point, and when motor is when rotating in the direction of the clock: 0 spends to 90 degree and is compression stroke, 90 spend to 180 degree for the explosion working stroke, and 180 spend to 270 degree and are exhaust stroke, and 270 spend to 360 degree and are intake stroke.

(2), advance hole 1 and exhaust port 2:

90 degree of being separated by on the center line of the round cavity of the stator circle have inlet hole and exhaust port and are positioned at inlet hole and the exhaust port point midway has spark-plug hole.Specifically, row, inlet hole are that exhaust stroke center line and 315 degree directions are the perforate of intake stroke center line direction in 225 degree directions respectively, and row, the inlet hole shape is identical, and its hole shape such as horn-like is outer big in little; Stator is justified the circular oval-shaped or oval abnormity of being shaped as of interior large opening, and when circular, its bore equals cylinder bore; When oval, major diameter length equals: cylinder port be still in the 180 preceding inlet sides of cylinder port when spending and cylinder port be still between 270 rear ends of cylinder port when spending square from, the major diameter opening direction is on the rotor rotation direction, and the purpose of major diameter is to make the inlet and outlet stroke more abundant; Oval minor axis equals cylinder bore, and the purpose of minor axis is to prevent when cylinder port seal gas ring in office on sense of rotation when inswept exhaust, suction port, and the edge that the front end bead of cylinder port seal gas ring lifts with exhaust, suction port bumps; Oval special-shaped perforate is by above-mentioned ellipse and two wing compositions, and the diameter of two wing preceding circular arc bead 2b is identical with the cylinder port diameter, and two wing middle parts are provided with a bridge of the nose 2c.As Figure 19, oval irregularly-shaped hole is identical with the long and short footpath of above-mentioned oval perforate, and the circular arc bead between the both wings raceway groove of oval the place ahead (cylinder port come to) is the projected size of cylinder bore, is called: preceding circular arc bead 2b (with exhaust port 2 is example, and inlet hole is identical).Oval special-shaped raceway groove both sides arc bead is called: middle circular arc bead 2d, and oval rear (cylinder port whereabouts) elliptic arc bead is called: back circular arc bead 2e; Bridge of the nose 2c effect in the middle of the raceway groove of oval special-shaped both sides is to make the cylinder port compression ring can stride across oval special-shaped raceway groove smoothly.

The shape function of oval special-shaped relief opening has two aspect effects: 1, when the end of explosion (acting) stroke, exhaust stroke begins, the cylinder port center line is during over against 180 °, bead is not opened before the moving direction of cylinder port, when before the inswept relief opening of cylinder port during circular arc bead 2b, make cylinder port at the beginning the time, bigger open amount (crescent shape) just be arranged, make the exhaust backhaul initial stage in the shortest time, discharge piston backhaul pressure in exhaust stroke; 2, " the back circular arc bead 2e " of relief opening and " middle circular arc bead 2d ", when watt inswept at any time these two circular arc lines of cylinder port compression ring and annular compression ring, the edge mouth of circular arc line can play the effect that scrapes rotor cylindrical carbon deposit, and carbon deposit can be taken away with blast air.Simultaneously, because watt on-stream and stator inner round wall friction of cylinder port compression ring and annular compression ring also can be taken to relief opening with the carbon deposit of stator inner round wall, also remove by two circular arc line beads.

Little perforate size is provided with size arbitrarily according to the engine exhaust amount.

Be intake interface 1a, exhaust port 2a on the stator outer round surface inlet and outlet mouth.

(3), spark plug 17 is arranged on into, on the horizontal central line that compression stroke that exhaust port is relative and explosion working stroke have a common boundary, this just in time is the starting point of compression stroke terminal point and explosion stroke.

(4), internal-round gear torus 3a, 3b on the stator: as Fig. 1 (being arranged on the forward and backward position of round cavity of stator):

Inner round wall is enterprising in the stator circle, vent openings radially both sides is respectively equipped with two internal-round gear torus 3a, 3b, and be fixed on the stator inner round wall, active force track as the rotor rotation, its size is: the cylindrical of internal tooth torus equates with circle in the stator, circle is 2 times of sizes (crankshaft gear 15 among Fig. 2) of crankshaft gear cylindrical in the gear ring, that is: on the rotor on the pitch circle of crankshaft gear and the stator in the pitch circle of round tooth torus be the relation of 1:2, since on the rotor on crankshaft gear and the stator internal-round gear torus be supporting use (being meshed), so, these two gears are that modulus is identical, and gear ratio is the relation of 1:2.

(5), draining hole 4 (4a, 4b) on the stator: as Fig. 1, Fig. 5,

In stator on the round bottom portion axial centerline, two internal-round gear torus 3a, 3b both sides in stator (under stride across both sides) under, respectively have one vertically downward and long-round-shape draining hole 4a, the 4b of break-through stator wall.

(6), water-cooled hole:

Outside stator whole, on the circle circumference, all have water-cooled hole 5, can be by external pipe into and out of liquid circulation.

(7), the oil sump interface 6: as stator bottom view among Fig. 1:

The whole bottom of stator is an oil sump interface 6, oil sump (external oil sump is not in this article) under the flow of lubricant oil-feed kerve interface 6 that gushes from stator internal drainage hole 4 (4a, 4b) is also taken heat out of, is pumped back in the motor by the cold true cooling of oil sump again and circulates.

(8), the end cap at stator two ends should be included as the motor stator class: as Fig. 4

End cap 7a, the 7b at stator two ends and the bearing 8 in the end cap, effect is set up whole rotor and is seen Fig. 2: among rotor-assembly figure-and the rotor plan view) in end cap bearing 8, rotate in the rolling friction mode, restrict rotor swings simultaneously.

2, the structure of rotor

(1), engine rotor: referring to Fig. 2.

Rotor body shape and structure: referring to Fig. 3 rotor body three-view diagram and stereogram.

The rotor body vertical diameter is a cylinder-bore 9 to circular hole, and piston and connecting rod are packed into wherein; Axially horizontal central line below round tube hole is a crankshaft hole 10, is used for placing (through Bearing Installation) bent axle, and the crank throw of bent axle links to each other with piston rod in the cylinder-bore; Crankshaft hole 10 two ends, it is the other breach 11 of circular hole, be used for placing bent axle support 12 (seeing Figure 12, Figure 11) bent axle 13 and pass externally from the bearing 14 of bent axle support 12, refill (two) crankshaft gear 15 (see figure 2)s on the external bent axle 13, as the piston power output gear.Must keep certain distance between the crankshaft hole 10 of crankshaft gear 15 and rotor, guarantee that lubricant oil can flow to, flow out crankshaft hole.

Bent axle support 12 is bow-tie shape (seeing Figure 12), bent axle support 12 is put into the other breach 11 in (see figure 3) crankshaft hole outer end, and (the crankshaft hole 10 opening two ends of rotor body are provided with breach 11, bearing 14 is installed on the bent axle support 12, the bent axle support 12 of bow-tie shape is on the breach 11 of screw at rotor body, bent axle 13 is installed on the crankshaft hole 10 through bearing 14, and the bent axle support put into crankshaft hole form upper and lower each one be used for the flat through hole 16 that lubricant oil flows to and flows out), just form each flat through hole 16 (seeing Figure 11) up and down.Its objective is that being convenient to lubricant oil flows to and flow out flat through hole 16 (this through hole can be other shape, as long as can make lubricant oil flow to, flow out), lubricated bent axle and piston. certainly, the shape of bent axle support can be various, as long as can support bent axle and bearing, and lubricant oil is flowed get final product.

(2), the shape and the effect thereof of tension-type ring packing compression ring watt and tension-type cylinder port seal gas ring

1., the shape of tension-type ring packing compression ring watts 18: hereinafter to be referred as " seal gas ring watt ", as Fig. 7 seal gas ring watt-three-view diagram:

Seal gas ring watt circular hole 19 is for laying the tension-type cylinder port seal gas ring 20 after the compression, and seal gas ring watts 18 shapes its breach of back for opening shape, and (see figure 7) is opened and compression figure;

Among Fig. 7: the long-round-shape pin of the outer both sides of circle keeps selling 21 for the location on the seal gas ring watts 18.

2., the shape of tension-type cylinder port seal gas ring 20: hereinafter to be referred as " cylinder port seal gas ring ", (as Fig. 8) cylinder port seal gas ring-three-view diagram and stereogram:

Though cylinder port seal gas ring 20 shapes are as " saddle " shape, see Fig. 8 stereogram, but its interior circle and cylindrical are orbicular: shape its breach of back for opening shape, see original phase diagram among Fig. 8, putting into earlier after the compression also is the circular hole 19 of band circular groove 24 on seal gas ring watt 18 interfaces after being compressed, referring to Figure 13, to put in the lump again and see that Fig. 9 cylinder port circular trough 22 opens it naturally, its interior circular diameter is not less than cylinder bore when opening naturally.

1., the effect of cylinder port seal gas ring 20:

Cylinder-bore top cylinder port circular groove 22, as Fig. 9, these ring groove 22 diameters are greater than the cylinder-bore diameter, its degree of depth is that cylinder port seal gas ring 20 lower ends are stretched in the groove, for seal gas ring Active Interface moving up and down, when seal gas ring is pushed up, remain its lower end and in groove, be advisable.Be used to lay cylinder port seal gas ring 20.As cooperate Fig. 9: cylinder port seal gas ring 20 lower ends are stretched in the cylinder port circular groove 22, because the tension force of self makes it can be close to the cylinder port cell wall: cylinder port compression ring 20 upper end cylindrical beads "

" shape shoulder 23 is referring to Fig. 8 stereogram, be placed in the seal gas ring between it and the rotor cylindrical watts 18 "

" in the shape on the circular bead groove 24, Fig. 9, referring to Figure 13, the tension force of cylinder port seal gas ring 20 sealed compression rings watts 18 outside jack-up in the cylinder makes cylinder port seal gas ring 20 protect tight the contact all the time with the stator inner round wall, reaches the purpose to cylinder seal.

2., the effect of seal gas ring watts 18 and wherein " location keeps pin 21 ", as Fig. 7

The both sides pin groove 25 on rotor body outer round surface channel grooves 26 next doors is seen Fig. 3 stereogram, be used to place seal gas ring watts 18 and see Figure 14, referring to Fig. 7, Fig. 9, seal gas ring watts 18 is enclosed in the rotor body outer round surface channel grooves 26, respectively there is pair of pin pilot trench 25 both sides on rotor body outer round surface channel grooves 26 diameter lines, correspondence is put into respectively has a pair of outstanding long-round-shape pin (long-round-shape is for increasing its intensity) location to keep pin 21 (during assembling, the location on the compression ring watt keeps pin to snap in the pin grooves on the rotor body) on the seal gas ring watt 18 cylindrical both sides diameter lines;

The tension force effect of seal gas ring watts 18 has 2 points: the one, and to the outer jack-up cylinder port seal gas ring 20 of rotor circle, make rotor upper cylinder mouth closely contact the sealing of assurance cylinder port with the maintenance of stator inner round wall; The 2nd, make whole rotor cylindrical keep elasticity to contact: to guarantee the thermal expansion and the compensation of the gap between the stator inner round wall of working rotor rotor cylindrical on the one hand with circle in the stator; Guarantee on the other hand to make in the rotor running that stator is enterprising, exhaust port keeps isolating.

The location keeps pin 21, its work has 2 points: the one, make tension-type ring packing compression ring watt to around evenly open and make elastic force and stator inner wall maintenance even contact, because: the location keeps in the pin grooves 25 of pin 21 on respective rotor, limited outside the circle of seal gas ring watts 18 in the rotor body outer round surface channel grooves 26 and be offset, its tension force can only direction open outside epitrochanterian pin grooves 25 openings, when seal gas ring watts 18 when the pin notch outwards opens, it is big (when diameter of a circle becomes big that the whole cylindrical of seal gas ring watts 18 evenly becomes simultaneously, it is big that circumference becomes), so can make itself and stator inner wall keep even contact.The 2nd, seal gas ring watts 18 and rotor are rotated synchronously.

(3), sweep oil ring groove 27 and sweep oil ring 28 as Figure 17 as Fig. 3, Fig. 5 and tension-type curved shape (saddle):

On rotor body outer round surface channel grooves 26 both sides cylindricals, what respectively be provided with a bending (horse-saddle) sweeps oil ring groove 27, is used to place tension-type curved shape (saddle) and sweeps oil ring 28.Because rotor can only rotate and can not move horizontally, there is overlubricate oil to enter in order to shield to close between rotor cylindrical and seal gas ring watt and stator, the tension-type of curved shape (horse-saddle) is swept oil ring 28, in the time of can be with rotor rotation, be close to the stator inner wall level and swing back and forth, play similar piston and sweep oil ring.

Referring to Figure 18, the effect of afterburning push rod 26a on the rotor body: in rotor body outer round surface channel grooves, the substantially horizontal identical with the locating stud pilot trench respectively is provided with two afterburning push-rod holes, and the afterburning push rod and the spring of cylindrical shape are put into wherein in the lump.Its effect has 2 points: 1, when the engine rotor excircle dimension that designs is big, self tension force of tension-type in rotor cylindrical annular compression ring watt, owing to will be used for jack-up cylinder port compression ring and self open is close to the stator inner round wall and produces the tension force deficiency, by afterburning push rod power-assisted, strengthen the tension force of compression ring watt outside circle; 2, because after the tension-type compression ring watt outwards opens in the rotor body recess channel, naturally can produce the gap with the rotor body circular surfaces, this gap is unfavorable for the transmission that the rotor intimate heat is outside, owing to be subjected to the afterburning push rod of acting force of the spring to the outer compression ring watt of withstanding of circle, therefore can play with the outwards effect of transmission of rotor intimate heat.

(4), rotor supports post 29, as Figure 10 and Figure 11 (the round internal tooth on the spindle end is a power output connection mouth):

Axial at rotor body, and pass two cylinders of rotor body, be called: rotor supports post 29 (this supporting post also can adopt be threaded or welding manner and the left and right end face of rotor body connect firmly), two post width stride across the cylinder-bore diameter apart shown in (figure two) side view; The bent axle 13 that these two cylinders are outer with stretching out rotor forms three posts, setting triangular in shape: see Figure 11, with three pin borehole jacks (being equivalent to three sleeves) cover of main shaft 30 thereon, connect firmly with it, the formation axis of rotor rotation is referring to Fig. 2.Space between the main shaft tripod is used for lubricant oil and flows, when rotor rotates, by the next lubricant oil of spray, flow into by space between the main shaft tripod, and because rotary centrifugal force makes lubricant oil enter (Figure 11) in the rotor body along rotor body radial side surface flow to the other flat through hole 16 of bent axle support, lubricated crankshaft and piston.

3, the sealing of rotary engine, lubricated, radiating mode:

From the stator structure of top motor and the structure and the work thereof of rotor, the sealing means of rotary engine, lubricating system and diffusing mode as can be seen:

Sealing means, lubricating system and radiating mode are interrelated, interactional, summary is got up: the cylinder port seal gas ring of cylinder upper end, by outside tension force (power-assisted that the comprises afterburning push rod) jack-up that is enclosed in the seal gas ring watt in the outer raceway groove groove of rotor circle, simultaneously, the cylinder port seal gas ring also is subjected to certain (cylinder port seal gas ring compression ring lower end and cylinder interface gaps place in cylinder, that is: compression ring lower circle port cross section and cylinder inner joint face, in pressure and the cylinder everywhere pressure equate, greater than the cylinder pressure outside, when inner pressure of air cylinder increases, round mouth cross section pressure also can increase) active force, make the cylinder port seal gas ring that outside active force also be arranged: also to comprise cylinder port seal gas ring institute self centrifugal force when rotor rotates, this three aspects active force makes the cylinder port seal gas ring can be close to the stator inner round wall all the time in the rotor rotation, reaches the reliable sealing to cylinder.

Rotary engine is in operation process, by (establishing two external oil pipes in addition to the motor stator chamber, spray simultaneously in the axial both sides of rotor body.External pipe is not in this article) the next lubricant oil of spray, in the axial both side surface of rotor body, because centrifugal force spreads lubricant oil everywhere, part is along the axial both side surface of rotor body, by the space between the main shaft triangle outside crankshaft hole, flat through hole 16 (Figure 11).Flow to and flow out flat through hole 16, in the crankshaft hole because bent axle centrifugal force, lubricated bent axle and piston; The lubricated crankshaft gear 15 (Fig. 2) of part, (two rotor main shafts 30 are installed in the left side of stator respectively through bearing 8 for bent axle bracket bearing 14 and main shaft end cap bearing 8, right end cap 7a, on the 7b): part Fei ?to the stator inner round wall, at this moment, sweeping oil ring on the rotor (sweeps oil ring 28 and sees Figure 17, in (Fig. 5), sweep oil ring groove 27 the place of laying for sweeping oil ring 28) play the effect of isolation lubricating oil inflow rotor outer round surface, because the curved shape of sweeping oil ring 28 (horse-saddle) of belt tension, in the time of can be with rotor rotation, being close to the stator inner wall level swings back and forth, play similar piston and sweep oil ring, parts of lubricating oil still can be diffused into the rotor outer round surface, play and lubricate the seal gas ring watt gentle seal with annular groove compression ring of in rotation, being close to stator inner wall, make rotor maintainability in stator, durability reaches the realistic scale of high request.

After the lubricant oil that spray comes spreads, take away heat on the rotor body everywhere, finally flow back into draining hole 4 (4a, 4b): as Fig. 1, Fig. 5, and flow to oil sump under the oil sump interface 6 (Fig. 1), cool to be pumped back in the motor again by oil sump and circulate; Lubricant oil is as the cooling medium, with the cooling liquid in the waterway on the stator, by the stator inner round wall heat indirect pass to the cooling liquid cooled engine; Simultaneously, be enclosed in the seal gas ring watt of rotor circle and sweep oil ring,, also conduct the part heat to cooling liquid owing to keep contact all the time with the stator inner round wall.

The working principle of rotary engine and advantage thereof

1, the working principle of rotary engine:

As (Fig. 4 Fig. 5) rotary engine-assembly-plan view, (Fig. 6) rotary engine-assembly-side view: the main shaft at engine rotor body two ends (also being power output main shaft) 30 is to be erected at (main shaft 1 is on three pin borehole jacks on its inner (three sleeves) connect firmly two rotor supports posts 29 and bent axle 13 at rotor body) of rotating in the end cap bearing 8 at motor stator two ends.Cylinder and piston in the rotor body is axially vertical with rotor main shaft, the bent axle 13 of rotor body inner carrier lower end is parallel with major axes orientation, and bent axle 13 is from departing from rotor body shaft centre line lower end, by being erected in the needle bearing in the bent axle end cap on the two ends, rotor side, respectively outside rotor body is stretched out at two ends, Knucle-gear (is called crankshaft gear 15 outside the crankshaft two end that stretches out respectively is provided with a piston power output, see Fig. 2), this gear be fixed on the stator inner round wall on two internal-round gear torus of relevant position be meshed, form like this, when bent axle rotates, epitrochanterian crankshaft gear be fixed on engagement rolling on the internal-round gear torus in the stator, rotate the torsional force urges rotor by crankshaft gear and rotate to the crankshaft gear rotating direction.

The magnitude relationship of outer Knucle-gear on the bent axle and the wheel of the internal-round gear in the stator is: crankshaft gear is 1:2 with the Pitch radius ratio of internal gear, and two modules are identical, so gear ratio also is 1:2.

That is: crankshaft gear (also being bent axle) rotated for two weeks, just rolled across a week on fixing stator internal-round gear wheel;

Bent axle is promoted by piston, and the every half way around of bent axle is finished a stroke, and four stroke bent axles finished for two weeks, and crankshaft gear is two weeks of rotation on the internal-round gear wheel of stator, promote one week of rotor rotation.Epitrochanterian cylinder port is also inswept one week of stator inner round wall, has so just formed cylinder port nature switching process, and therefore, the rotor revolution is crossed 90 degree, and piston is finished a stroke.Be that rotor rotation was finished respectively in one week: air inlet, compression, explosion (acting), four strokes of exhaust.

In a word, from the moving integral body of changeing of rotary engine, rotor rotation is to promote piston lower end crankshaft rotating by piston in the rotor body, and do mutually by stretching to internal-round gear torus fixing on outer crankshaft gear self rotation of rotor body and the stator, reaction force by the crankshaft gear rotation, promoting rotor rotates to crankshaft gear moving direction, simultaneously, because internal-round gear torus fixing on crankshaft gear and the stator is the relation of 1:2, stroke of piston motion, be that bent axle rotates 180 °, rotor just in time rotates 90 °, cylinder port on the rotor cylindrical is also rotated 90 °, so in rotor rotation in one week, the different direction of the inswept on time stator inner round wall of the cylinder port on the rotor cylindrical, the row of formation naturally, the switching of gas-entered passageway, each stroke of rotor rotation direction and piston motion is synchronous, finishes respectively: air inlet, compression, explosion (acting), four strokes of exhaust.

Need explanation a bit: because the crankshaft gear radius is the effective radius of piston acting power output, crankshaft gear cylindrical active force be with the twice stator internal-round gear wheel contact points than its Pitch radius on; With regard to rotor, the active force radius that promotes rotor rotation is also on the contact points of internal-round gear wheel pitch circle on crankshaft gear and the stator, because, the rotor center of circle equals the crankshaft gear pitch diameter to two pitch circle contact points radiuses, so, crankshaft gear effective force arm lengths is the crankshaft gear radius of gyration, twisted than the twice rotor arm of force of self arm of force radius radius, therefore, the power of output during the piston acting, when exporting to rotor rotary main shaft power by crankshaft gear, its rotor torsion is a times of bent axle torsion, but rotor speed is speed of crankshaft half, and this has just laid in the power of bent axle output for rotor dynamic output.Its power can than in be released at subordinate's throw-over.

2., rotary engine process service cycle and advantage thereof:

We rotate to clockwise direction with rotor, and are zero point starting point 0 degree with clock, and (no matter the on-stream any direction of cylinder port in the rotor, we claim that the outer direction cylinder port of circle is on the cylinder.We claim that also the crank throw of bent axle is a lower dead center away from cylinder end simultaneously, are top dead center near cylinder end)

(1), compression stroke: as Figure 20, Figure 21, Figure 22

Rotor upper cylinder mouth center line forwards 90 degree to from 0 degree and is compression stroke:

As Figure 20, at this moment piston is in the lower dead center of cylinder in the rotor, along with rotor moves in the direction of the clock.Crankshaft gear 15 rotates under interacting with stator internal-round gear wheel thereupon, and piston end motion on cylinder turns over half cycle up to bent axle, piston arrives cylinder upper end, and rotor turns over 90 degree, finishes compression stroke.

As can be seen from the figure, spark plug is arranged on the point of interface of compression stroke and explosion stroke (as Figure 22, at this moment cylinder piston is in the top dead center of cylinder in the rotor), therefore in this process, the part of rotor upper cylinder mouth has entered the spark plug position in advance, and the rotary engine ignition timing is according to different rotating speeds, by speed probe, by electronic control plug ignition advancement amount.(can also in less than 90 degree directions, with near 90 degree positions, repeat to be provided with a spark plug more during fabrication for the high speed rotor motor, strengthen the electronic spark advance weight range.

As Fig. 4 as can be seen rotary engine do not have special distribution device, in cylinder, do not have inwardly to open occupied space as the valve of conventional engines, rotary engine can make the more close compression limit of piston top dead center when manufacturing and designing, certainly compression limit is not unlimited, and we claim that this limiting value is the compression ratio extreme value.

As Figure 15, (compression ratio extreme value effect diagrammatic sketch 1) from diagrammatic sketch relatively as can be seen, the cylinder of 9 per unit volume capacity is compressed to 2.5 per unit volumes, its compression ratio 9:2.5=3.6 doubly; Gas is under same density conditions, as long as compression point is close to extreme value, among the figure: the cylinder of 8 per unit volume capacity is compressed to 1.5 per unit volumes, and its compression ratio 8:1.5=5.33 doubly; Compression point is further close to extreme value, and the gas compression of 7 per unit volumes is 0.5 per unit volume, and its compression ratio 7:0.5=14 doubly.Compression point is close to extreme value, and under the situation that reduces gas quantity, compression ratio increases on the contrary.

As Figure 16, (compression ratio extreme value effect diagrammatic sketch 2), under the same volume situation,

Increase its comparativity.Among the figure, all be 9 unit volume amounts:

The right is one group among the figure, and other situations are constant, and its compression ratio 9:2.5=3.6 doubly;

Middle one group, bent axle increases by 0.5 unit length radius, and allowance below nominal size increases a unit length stroke on the piston, and promptly near a unit, its compression ratio 9:1.5=6 times, moment of torsion has increased by 0.5 unit radius to piston top dead center simultaneously to extreme value;

One group on the left side, bent axle increases a unit length radius, and allowance below nominal size increases by two unit length strokes on the piston, and promptly near two units, its compression ratio 9:0.5=18 times, moment of torsion has increased by 1 unit radius to piston top dead center simultaneously to extreme value.

The precondition that produces this situation is to want the close environment space of oriented extreme value, and conventional engines has taken the space of further raising compression ratio because the working method that valve is opened in cylinder, can't make fuel oil give play to due benefit.

This explanation rotary engine can be brought into play the extreme value effect of compression ratio, has given play to the due benefit of reciprocating engine; Also explanation can be designed the rotary engine of high compression ratio as required; Also explanation simultaneously, rotary engine can be used for similar working method as the diesel oil compression ignite.

Must be pointed out simultaneously, the thermal efficiency of motor not exclusively depends on the compression ratio before the burning, and depend primarily on expansion ratio after the burning, at compression ratio one regularly, depend on mixed gas concentration, cross rare causing easily and catch fire, overrich causes detonation (detonation makes the burning increment be obstructed on the contrary) easily, and rare excessively, overrich can cause that all engine operation is not normal.

Whether further improve compression ratio, produce phenomenon as unfavorable engine operation such as detonations? the answer is in the negative.Just just can prove with actual turbosupercharging in should having: when displacement, combustion chamber volume one regularly, additionally in cylinder, force to be pressed into more air fuel mixture body, be equivalent to displacement and increase (holding more gas quantity), also be equivalent to combustion chamber volume and reduce (compression ratio increase) relatively because the swept volume capacity increases, actual conditions are that engine power significantly improves.Illustrate that further increase compression ratio detonation can not take place makes the combustion efficiency increment reduce phenomenon.Rotary engine does not increase extra air-fuel mixture amount conversely speaking,, only reduces combustion chamber volume, and actual is to have increased swept volume, wouldn't be further to bring into play the due usefulness of original combination gas.

Not increasing working room's volume and not increasing under gas quantity (as the turbosupercharging) condition, increase compression ratio with absolute mode, be actually the input-output ratio that has improved combustion gas and reduced toxic emission.

The top dead center of piston to the compression ratio extreme value near effectively significantly improving engine compression ratio, improve the pressed density of inflammable gas, make the explosion gas intermolecular distance that to expand tightr on the one hand, make explosion time gas expansion multiple bigger, more fierce in the implode of gas concentration scope, further give full play to inflammable gas potential, promote engine power; Inflammable gas fires temperature before can improving blast on the other hand again, makes its combustion explosion rapider more abundant, improves exhaust emission quality.

(2), explosion expansion space stroke: as Figure 22, Figure 23, Figure 24

Rotor upper cylinder mouth center line forwards 180 degree to from 90 degree and is the explosion expansion space stroke:

Along with rotor is rotated further by 90 degree directions, piston is by the end motion under cylinder of cylinder top dead center, and bent the commentaries on classics turns over half cycle again, and bent axle external gear and stator internal-round gear wheel interact, and promotes rotor and forwards 180 degree to from 90 degree, finishes the explosion expansion space stroke.In blasting process, the suffered combustion gas swelling pressure of piston tip equate the stator inner wall pressure with cylinder wall and cylinder port, along with the cylinder port forward direction moves, the relative cylinder port of stator inner wall is to move round about, enter the stator inner wall of cylinder port and its active force area equal and opposite in direction of stator inner wall of disappearance, do not form any pressure difference, promptly can not cause any resistance rotor rotation.

3, as Figure 24, Figure 25, Figure 26, the cylinder port center line of rotor forwards 270 degree to from 180 degree and is exhaust stroke; Arrive the cylinder lower end when piston motion, bent axle turns over lower dead center, the beginning exhaust stroke.

Cross 180 degree from the cylinder port center line of rotor, turn over 45 degree, bent axle turns over 90 degree, reach 225 when spending to the cylinder port center line, cylinder port is over against the relief opening center line, inswept cylinder port has been in full open position, be that 100% of cylinder bore is in open mode, (the conventional cam of comparing formula air valve engine, also be that bent axle turns over 90 degree for the valve maximum opening again from lower dead center, comprise that the cammingly valve has certain cam deflection to open the valve advancement amount, just bent axle turns over 90 degree, cam turns in the 45 degree time ranges, and the maximum open amount of cam air gate type four stroke engine exhaust valve can not surpass 50% of cylinder bore.Hence one can see that, rotary engine is from beginning exhaust (need not advancement amount) on schedule, bent axle turns in the 90 degree time ranges, air displacement from zero to maximum value, because the exhaust mode of itself, rotary engine air displacement raising speed (cylinder port is opened fully from closed condition to 100%, the air displacement rate of climb) is far longer than cammingly valve exhaust mode.Therefore, rotary engine no longer needs to solve as the cammingly air-distribution engines, because the valve opening amount is limited, need be according to different rotating speeds by dynamically adjusting the cam angle of yaw, adjust the advancement amount that mates valve timing, reducing the problem of cylinder backhaul resistance, and relevant valve stroke (prolongation valve duration) prolongs the drain time problem.Rotary engine is because the exhaust raising speed is fast, and valve opening is complete, can satisfy under any rotating speed operating mode of motor backward stroke of the piston non-resistance emission request.Do not need advancement amount before exhaust stroke begins, make the explosion working stroke cmpletely, prolonged cylinder combustion and burnt the time, it is also more abundant to burn, and power is more sufficient, discharges cleaner.And, because rotary engine does not have the burden of a whole set of distribution device of conventional engines, the stroke power that exhaust stroke is inherited, the effective power that can be converted into rotor is fully exported.

4, intake stroke: as Figure 26, Figure 27, Figure 20, rotor upper cylinder mouth center line forwards 360 degree to from 270 degree and is intake stroke.

As the exhaust stroke situation, just piston is by the operation downwards of cylinder upper end, also because the raising speed that intake valve is opened is fast and cylinder implication door is opened fully.So nearly gas stroke does not need by the rotating speed requirement when beginning yet and opens valve in advance.Promptly can satisfy the rotary engine rotor when running up to the sufficient requirement of air inflow.But when low speed and idling, also require the well-mixed problem of fuel oil and air.It is fast that rotary engine valve when low speed and idle running is opened raising speed, the valve opening amount is very big, cause the mixed gas flow velocity slow excessively outwardly easily, but, rotary engine valve form is at the inswept static suction port of rotation process rotor upper cylinder mouth, the inlet stream direction changes along with the change of the cylinder port sense of rotation of rotor, form rightabout streaming twice: early stage in air inlet, inlet stream flows towards the cylinder port direction that arrives earlier, and along with the change of cylinder port sense of rotation, inlet stream is also changing direction, when cylinder port is opened fully, air-flow enters in a large number with descent of piston, and rotor is rotated further, and inlet stream changes direction fully, and along with the inswept suction port of cylinder port diminishes gradually, inlet stream is also quickened gradually, forms air inlet later stage opposite direction and streams fast, has quickened fuel oil and Air mixing.So, when low speed and idle running, also can satisfy the well-mixed requirement of fuel oil and air.Add the compression stroke that follows closely, under rotary engine high compression ratio state, the mixed gas of relative low temperature is further mixed and intensification rapidly.Therefore, rotary engine can provide good working environment under various rotating speed operating modes.

The above is the principle and the structure of single-cylinder four-stroke rotary engine of the present invention, (as existing piston reciprocating type multicylinder engine) can be made as multi-rotor engine with it fully in Automobile Design, as four cylinders, six cylinders, eight cylinders, twelve-cylinder, make the work of motor more steady.Figure 28 is series connection four-cylinder rotary engine example in upright arrangement, and its every cylinder differs 90 ° of phase places, keeps free of discontinuities acting in each week.Rotary engine can in upright arrangement be connected, also can the biserial parallel connection.

Claims

1, a kind of rotary engine, it is characterized in that: mainly form by stator assembly and the rotor assembly that is arranged in the stator, stator assembly mainly is made up of stator and left and right end cap (7a, 7b), be installed with two internal-round gear torus (3a, 3b) on the forward and backward position of the round cavity of stator, the above and below of the round cavity center line circle upper edge radial level direction of stator, 90 degree have inlet hole (1) and exhaust port (2) and are positioned at inlet hole and the spark-plug hole of exhaust port mid point opposing side at interval; Rotor assembly mainly is made up of rotor body, rotor main shaft (30), bent axle (13); Radially be provided with cylinder-bore (9) on the rotor body, piston and connecting rod are packed into wherein, the horizontal central line below is provided with crankshaft hole (10) vertically, bent axle (13) through Bearing Installation on crankshaft hole (10), the crank throw of bent axle is connected with piston rod, two crankshaft gears (15) are installed on the bent axle, two crankshaft gears respectively with two internal-round gear torus (3a that are fixed on the stator, 3b) be meshed, the velocity ratio of the two is 1:2, be installed in the left side of stator respectively through bearing (8) as two rotor main shafts (30) of pto, right end cap (7a, 7b), and two main shaft the inners connect firmly respectively on a rotor body left side, on the right side; The cylinder-bore of rotor body (9) also is provided with gas seal mechanism on the outer end opening position.

2, according to the described rotary engine of claim 1, it is characterized in that: have channel grooves (26) and pin grooves (25) on the described rotor body, the cylinder-bore of rotor body (9) top has circular groove (22); Described gas seal mechanism is made up of tension-type seal gas ring watt (18) and tension-type cylinder port seal gas ring (20), this compression ring watt is enclosed on the channel grooves (26) of rotor body external peripheral surface, and oblong location keeps pin (21) to snap in the pin grooves (25) on the rotor body on it, this compression ring lower end stretches in the circular groove (22) of rotor body, be close to the cylinder port cell wall, compression ring upper end cylindrical bead "

" the shape shoulder be placed on compression ring watt "

" in the shape on the circle bead.

3, according to the described rotary engine of claim 2, it is characterized in that: be fixed with two rotor supports posts (29) on the left and right end face of described rotor body respectively with bent axle (13) setting triangular in shape; Two rotor main shafts (30) are on three pin borehole jacks on its inner connect firmly two rotor supports posts (29) and bent axle (13) at rotor body.

4, according to the described rotary engine of claim 3, it is characterized in that: the crankshaft hole of described rotor body (10) opening two ends are provided with breach (11), bearing (14) is installed on the bent axle support (12), the bent axle support (12) of bow-tie shape is on the breach (11) of screw at rotor body, bent axle (13) is installed on the crankshaft hole (10) through bearing (14), and the bent axle support put into crankshaft hole form upper and lower each one be used for the flat through hole (16) that lubricant oil flows to and flows out.

5, according to the described rotary engine of claim 4, it is characterized in that: (1, the 2) shape of the inlet and outlet hole in the described stator such as horn-like, outer little interior big, this large opening be shaped as the oval or oval abnormity of circle, when be circle, its diameter equals rotor body cylinder-bore (9) diameter; When being oval, when major diameter equals cylinder port and is still in two positions of 90 degree of being separated by, the distance between back one position cylinder mouth front end and the last position cylinder mouth rear end, oval minor axis equals the cylinder port diameter; When being oval abnormity, by above-mentioned ellipse and two wing compositions, the diameter of two wing preceding circular arc beads (2b) is identical with the internal diameter of cylinder port, and two wing middle parts are provided with a bridge of the nose (2c).

6, according to the described rotary engine of claim 5, it is characterized in that: be respectively arranged with intake interface (1a) and exhaust port (2a) on inlet hole of described stator (1) and the exhaust port (2); Described rotor body outer round surface channel grooves is provided with afterburning push rod (26a).

7, according to the described rotary engine of the arbitrary claim of claim 1～6, it is characterized in that: what surface channel groove (26) both sides of described rotor body cylindrical respectively were provided with a saddle bending sweeps oil ring groove (27), also has as being placed on the tension-type curved shape of sweeping in the oil ring groove (27) and sweeps oil ring (28).

8, according to the described rotary engine of claim 7, it is characterized in that: the whole outer circle circumference of described stator is provided with water-cooled hole (5); In the stator from stride across down two internal-round gear torus (3a, 3b) respectively have one vertically downward and the long-round-shape draining hole (4a, 4b) of break-through stator wall and stator bottom be provided with oil sump interface (6).

9, described according to Claim 8 rolling motor is characterized in that: described spark-plug hole is provided with spark plug (17).

10, according to the described rotary engine of claim 9, it is characterized in that: also be provided with a spark plug on the close position before spark plug on the described stator (17) the rotor assembly stroke.