CN2443150Y - Double rotator rotary engine - Google Patents

Abstract

The utility model relates to a birotor rotary engine; in the utility model, the power is generated in the method that fuel is directly combusted in air cylinders. The utility model is mainly composed of two axial cylindrical air cylinders which are connected together, two eccentric rotors which are coaxially installed in each air cylinder, partition plates in slide grooves of air cylinder jackets, and an air valve which enables the air cylinders to be communicated with each other or not; the two eccentric angles of the eccentric rotors are mutually angled. When the engine is rotated in a circle, two rotors in the air cylinders can carry out the four processes of air intake, compression, operation, air exhaustion to complete a working cycle together. The novel engine basically solve the problems that the air intake quantity is insufficient, the rate of doing work is low, the combustion is insufficient, the pollution of exhausted gas, etc.; so the utility model has wide purpose in various power units.

Description

The double rotor rotary engine

The utility model relates to a kind of fuel directly produces power at the engine air in-cylinder combustion heat engine---double rotor rotary engine.

In engine art, Reciprocating engine has been most widely used motor in the world today, but because its particular structure form, from its appearance, the insoluble problem of it some also is present in generation thereupon, has become the problem of the long-term tackling key problem of people as the reciprocal inertia of other part, air inlet charge, toxic emission etc.Nineteen sixty, receiving the novel rotary polygonal piston engine that company of Soviet Union (NSU) develops by wankel invention makes public first, this machine has replaced the cylindrical piston of Reciprocating engine with the trigonometric form rotor, replaced the to-and-fro motion of Reciprocating engine to rotatablely move, thereby solved the reciprocal inertia force of the piston that produces the reciprocating engine work and other part from structure, part is few in addition for this machine, in light weight, volume is little, the power per liter height, but its deficiency is this machine rotor and cylinder bore and adopts the scraping blade sealing, thereby wear extent is big, reliability and durability existing problems, its specific fuel consumption is higher than Reciprocating engine in addition, the combustible gas that its part is not fired directly is discharged in the atmosphere, both wasted fuel, again severe contamination environment, though in the world through effort decades, to scheme to change this situation, but effect is little, so this machine does not obtain popularization so far.

The purpose of this utility model is to provide a kind of novel double rotor rotary engine to people, new engine can not only reduce the frictional loss of motor, and can increase the air inlet charge of motor, combustible gas is fully burned, improve the work done of motor and render a service, further reduce exhaust gas discharging and pollute.

For realizing above purpose, principal organ of the present utility model is designed to: the rotary pump that the band eccentric wheel cylindrical rotor that two centres are separated by plate in is arranged, two rotors of pump axially are sleeved in the interior same rotating shaft in two pumping cylinders footpath, two centre of rotor are mutually an angle in the rotating shaft, two demarcation strip is linear reciprocating motion in the cylinder sleeve chute, the import of its fore pump is an engine intake, back level delivery side of pump is an exhaust opening of engine, the prime delivery side of pump is connected with the import of back level pump, in this passage, adorn a valve, the timing of this valve opens and closes by the cam that is contained in the rotating shaft and controls by push rod and rocking arm, during engine revolution, rotor diameter becomes to roll with cylinder bore diameter and contacts, become sliding contact with demarcation strip, this mechanism greatly reduces the frictional loss of motor, when engine operation, fore pump is responsible for air inlet and compression, back level pump is responsible for work done and exhaust, rotating shaft whenever rotates a circle, carry out air inlet respectively in the pump cylinder of front and back, compression, work done, exhaust four processes are finished a work cycle jointly.

The utility model is owing to adopted the main machine frame of eccentric wheel cylindrical rotor rotary pump for this motor, it has replaced the scraping blade friction of triangle motor with the rolling friction of rotor diameter and casing wall, though this machine also has the sliding friction of rotor diameter and demarcation strip, but the relative frictional distance of its revolution only is the poor of cylinder bore diameter girth and rotor diameter girth, compare with the triangle motor, the loss of this engine friction is much smaller than the former, simultaneously, the utility model is finished respectively owing to four strokes of motor are transferred to two cylinders, thereby the work corner of its each stroke greatly increases, increase along with the work corner, the corresponding operating time that prolongs each stroke, this is to increasing the air inlet charge of motor, and the thorough discharging of the perfect combustion of combustible gas and waste gas is greatly favourable.From the work phase diagram of Fig. 5 as seen, the work corner of each stroke of this machine in a circulation is all much larger than the triangle motor, also greater than Reciprocating engine.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model example structure sectional view.

Fig. 2 is the front view and the sectional view of the utility model eccentric rotor (5) (9).

Fig. 3 is the front view and the sectional view of the utility model eccentric disc (8) (20).

Fig. 4 is the three-view diagram of the utility model demarcation strip (25).

Fig. 5 is a work phase diagram of the present utility model.

Fig. 6 is a fundamental diagram of the present utility model, and in the figure, diagram (1) is a back level cylinder, and diagram (14) is the prime cylinder.Now be described as follows in conjunction with Fig. 1-6 detail.

As seen from Figure 1, the utility model has former and later two axial cylindrical shape cylinders (1) (14) that is separated by plate (4) in, respectively there is a cylindrical eccentric rotor (5) (19) to be fixed in the same rotating shaft (11) with two cylinders (1) (14) centres in two cylinders, rotating shaft (11) be fixed in the two end plates (2) (7) with the concentric bearing hole of cylinder diameter in, stretch out outside the hole at rotating shaft (11) two, axial direction in rotating shaft, eccentric two different surface beelines to rotor (19) (5) center of two rotors (19) (5) have angle; Axial direction on cylinder liner (2) (7) respectively has a radial groove, and two antarafacial center lines of two chutes also have an angle.Cut open in the cylinder (1) at the A of Fig. 1, one demarcation strip (25) is laid in the chute, (25) one of demarcation strips are pressed on rotor (19) external diameter, the other end connects by cylinder Xiao of spring (24) demarcation strip connecting rod (18) and connecting rod (18) one ends and the borehole jack in eccentric disc (20) flange, and the targeting part of demarcation strip connecting rod is placed in the chute that overlaps with demarcation strip (25) Mobility Center line in the end plate (2), eccentric disc (20) is fixed in the rotating shaft (11).Demarcation strip (not shown) and eccentric disc (8) are identical with cylinder (1) with the connection of rotating shaft (11) in another cylinder (14).Respectively there is a gas port at position near demarcation strip (25) two sides in two cylinder sleeves (3) (6), be the import and the outlet of cylinder, the import of its prime cylinder (14) is the suction port (22) of motor, thereafter the outlet of level cylinder (1) is exhaust opening of engine (26), the outlet of its prime cylinder (14) is interpenetrated by middle plate vent (15) with the import of back level cylinder (1), with vent (15) central vertical direction, one valve opening is arranged, one air valve (17) is sliding joins wherein, and air valve (17) is controlled by cam (12) lifting body in the rotating shaft (11).Air valve (17) is when moving back and forth, cylinder sleeve (6) (3) air vent opens and closes before and after can making, air valve (17) touches with cam (12) contoured surface in rocking arm (16) push rod (13) and the rotating shaft (11) mutually towards the cylinder outer end, one spring is placed on outer middle plate (4) spring seat of air valve (17) valve rod, and its upper end withstands under the contact of valve rod end.The intake duct of grade cylinder (1) cylinder sleeve (3) is near the position of demarcation strip (25) in the back, spark plug or oil nozzle (23) are installed, by adorning magnetogenerator or high pressure oil pump (21), the other end is equipped with flywheel balancing dish (10) and gear (9) at an end of rotating shaft (11).

More than said eccentric rotor (19) (5) as shown in Figure 2, it is by a cylindrical eccentric wheel and be placed in one of the outer roll sleeve of wheel and wheel and inner room and enclose needle roller and form, eccentric pivot hole is arranged in the eccentric wheel, the roll sleeve aperture surface has the inner headed face raceway of laying needle roller, the roll sleeve both ends of the surface have several circular grooves, O-ring seal is arranged in the groove, the axial elasticity circle is arranged under the seal ring.Demarcation strip on the cylinder diameter in the radial groove (25) as shown in Figure 4.This plate is a rectangular or square plate, its two plane is smooth smooth, the one head has the axial cylindrical bore of a radial opening, its opening angle is less than 180 °, and a rotatable cylindrical body is arranged in this cylindrical hole, and cylindrical body part the hole outside is-and the R value equals the inner arc surface of rotor (19) (5) radius, the other end of demarcation strip (25) has several to lead to the hole of intralamellar part, there are several horizontal and straight grooves the bi-side of plate, and Stamping Steel Ribbon is arranged in the groove, under the Stamping Steel Ribbon flexible.Eccentric disc (20) (8) in the rotating shaft (11) as shown in Figure 3, it is made up of the eccentric disk of a disc and the flanged pin rolling ring that is enclosed within on this plate external diameter, one axial Xiao hole is arranged on the rolling ring flange, there are a raceway, a circle ball to lay in the raceway on the outer diametric plane of the internal diameter of rolling ring and eccentric disk, when eccentric disk is fixed in the rotating shaft (11), its center overlaps with homonymy rotor (19) (5) center, and its center to flange Xiao hole centre distance equals rotor (5) (19) radius.

When engine rotation, the eccentric rotor roll sleeve becomes to roll with casing wall all the time and contacts, become sliding contact with demarcation strip, this the time rotating shaft (11) go out end utilizes its rolling ring flange mesopore and demarcation strip connecting rod (18) one ends near the other eccentric disc (20) (8) of end plate (2) (7) the cooperating of cylinder Xiao, drive demarcation strip connecting rod (18) and in the end plate guide chute, move up and down, impacting force balancedly is pressed on the demarcation strip (25) all the time by spring (24).Guaranteed that demarcation strip (25) contacts with the good of rotor diameter in the motion, and then guaranteed the effective sealing in the cylinder.Rotation cam (12) raises push rod (13) promotion rocking arm (16) on time and makes air valve (17) lifting on time, thereby cylinder air flue before and after regularly opening and closing, the high pressure oil pump or the magnetogenerator (21) of (11) one ends of rotating shaft simultaneously provide fuel oil or priming supply and signal to oil nozzle or spark plug (23) on time in rotation, impel fuel gas buring in the cylinder, carry out work.The flywheel balancing dish (10) of the other end is to establish for the centrifugal force of balancing rotor and the rotary inertia of motor, and the moment of torsion of motor is exported by gear (9).

The utility model working principle as shown in Figure 6.Now be described as follows:

For convenience of explanation, at first Fig. 6 has been drawn as two in fact axial arranged cylinders and has been arranged in parallel, and (26) among the figure are relief opening, (25) be demarcation strip, (23) are spark plug, and (17) are air valve, (22) be suction port, (1) is back level cylinder, and (14) are the prime cylinder.Because when rotor rotates in cylinder, its most of the time is being undertaken two work, for this motor, its prime cylinder (14) is being undertaken air inlet and compression two work, back level cylinder (1) is being undertaken burning work done and exhaust two work, for ease of explanation, we call baseline to the separatrix of undertaking these two work on the rotor.From Fig. 6 as seen, this baseline is a straight line by through rotor diameter of cylinder centerline process rotor center and cylinder diameter point of contact, now the point of contact of this baseline rotor external diameter and cylinder bore is called basic point, be called the leading edge face of this rotor from one section rotor surface of basic point towards the rotor sense of rotation to demarcation strip, from basic point dorsad the rotor sense of rotation be called the rear surface of rotor to one section rotor diameter face of demarcation strip.(for convenience of description, abbreviate the leading edge face and the rear surface of cylinder (1) or cylinder (14) in the back explanation as) when on the unidirectional same radial line of demarcation strip longitudinal center line in cylinder of two cylinders, the angle in the rotating shaft between two rotor baselines is exactly the compression angle of this motor.Compression angle is less than 180 °, and compression angle is more little, and pressure is high more in the cylinder.Its mutual alignment is: before being with the rotor sense of rotation, and when being object of reference with the demarcation strip, angle of prime cylinder (14) rotor baseline hysteresis demarcation strip, angle of the back level leading demarcation strip of cylinder (1) rotor baseline.When two cylinder cylinder diameters, volume is identical, and when the lead angle of back level cylinder (1) rotor baseline equaled the retardation angle of prime cylinder (14) rotor baseline, the setting pressure in the cylinder was the highest, and this angle equals the compression top center of Reciprocating engine, and its value is 1/2nd compression angles.Now the double rotor rotary engine is described as follows in each working condition constantly:

During a position, air valve (17) is closed among Fig. 6, and cylinder (14) leading edge face begins to compress one and changes the combustible gas that sucks, and rear surface begins air-breathing.Cylinder (1) leading edge face is got rid of waste gas in the cylinder, and rear surface just is being subjected in the cylinder promotion of last one combustion gas when transferring to merit, forces rotor (19) to turn clockwise.

During the b position, air valve (17) is still closed, and cylinder (14) leading edge face continues combustible gas in the compression cylinder, because air valve (17) is closed, leading edge face upper cylinder volume dwindles in the compression, increased pressure, and temperature rises, and the rear surface continuation is air-breathing.This time cylinder (1) leading edge face exhaust finish, it is maximum that the rear surface volume of cylinder reaches, burning closes to an end.

During the c position, air valve mouth (17) begins to open, and cylinder (14) leading edge face continues combustible gas in the compression cylinder, and its rear surface continues air-breathing; Along with air valve (17) is opened, the fast flow speed and direction cylinder of combustible gas (1) of certain pressure and temperature in the cylinder (14), this the time, cylinder (1) leading edge face and relief opening (26) are connected, waste gas sprays to relief opening (26) in the cylinder, cylinder (1) exhaust begins, and rear surface between suction port and demarcation strip, is accepted cylinder (14) and compressed into next combustible gas in cylinder.

During the d position, air valve (17) continues to open, and cylinder (14) leading edge face continues combustible gas in force feed and the compression cylinder, and its rear surface continues air-breathing.This time cylinder (1) leading edge face get rid of waste gas in the cylinder, rear surface continues to draw cylinder (14) and compresses into next combustible gas.This time cylinder (1) rotor (19) baseline and demarcation strip center angle equal the angle at cylinder (14) rotor (5) baseline and demarcation strip center, this position has been equivalent to the compression top center of Reciprocating engine, at this moment, in the cylinder (1) on the rear surface and setting pressure and temperature on cylinder (14) the leading edge face the highest, spark plug (23) is lighted a fire in the cylinder (1).

During the e position, air valve (17) is still opened, and cylinder (14) leading edge face continues the force feed combustible gas to cylinder (1) rear surface, and cylinder (14) rear surface continues air-breathing.This time cylinder (1) leading edge face exhaust, combustible gas acutely burns on its rear surface, the high temperature and high pressure gas that burning produces is given pressure of cylinder (1) rear surface, because air valve (17) is opened, two cylinders communicate, therefore pressure of cylinder (14) leading edge face is also given in combustion gas simultaneously, and this pressure is opposite with the rotor sense of rotation.But since this time cylinder (1) rotor (19) baseline to the lead angle of demarcation strip greater than the retardation angle of cylinder (14) rotor (5) baseline to demarcation strip, so cylinder (1) rotor (19) is gone up the leading edge face of rear surface greater than cylinder (14) rotor (5), so should the time pressure that obtains on cylinder (1) rear surface greater than the pressure on cylinder (14) the leading edge face, add the inertial force of flywheel (10), so cylinder (1) rear surface upward pressure overcomes the back pressure on cylinder (14) the leading edge face, promote rotor (19) and rotate towards former clockwise direction.

During the f position, air valve (17) is closed, cylinder (14) leading edge face in cylinder the air outlet to the demarcation strip position, this time leading edge face compression outlet in residual gas, rear surface place volume of cylinder maximum, air-breathing end; Cylinder (1) leading edge face continues exhaust, and combustible gas burns away in the rear surface upper cylinder.Air valve (17) is closed during owing to this, so, the pressure that cylinder (1) rear surface combustion gas produces does not work to cylinder (14), thus this time pressure that produces with combustion gas on rear cylinder (1) rear surface only rotor (19) is made positive work, promotion rotor (19) rotates toward the clockwise direction.

Arrive a position again, air valve (17) is closed, and cylinder (14) leading edge face begins to compress the combustible gas that sucks in the last commentaries on classics cylinder, and its rear surface begins the air-breathing of a new commentaries on classics again.This time, the leading edge face is got rid of waste gas in the cylinder in the cylinder (1), combustible gas burns away in its rear surface cylinder, gas expands, and promotes cylinder (1) rotor (19) and rotates toward the clockwise direction.When the b position, it is maximum that cylinder (1) rear surface volume reaches, and burning finishes, and expansion stops.

When arriving a position, rotor has rotated a week in cylinder, finished a work cycle, and in this week, that two cylinder rotors have carried out is air-breathing, the work of compress inlet air, ignition, four processes of exhaust.In one week, the engine ignition work done once, it specifically works relative position as shown in Figure 5.In this work phase diagram, the garden that four openings are arranged from inside to outside, the starting point in garden is the initial point of work, the arrow points work final position in garden, and wherein aspirating stroke is represented in the W garden, X represents compression stroke in the garden, Y garden representative burning power stroke, Z represents exhaust stroke in the garden, and its whole full garden is that rotor rotates a circle 360 °, a, b, c, d, e, f radial line and each stroke garden crosspoint in the garden are for being somebody's turn to do each stroke phase place constantly in the working drawing 6.Demarcation strip on vertical center line (25), its center line are the vertical center line of cylinder.The R angle is a compression angle among the figure, and B is the lead angle of cylinder (1) rotor (19) baseline, and A is the retardation angle of cylinder (14) rotor (5).In schematic diagram 6, we see that rocket ignition time is on 1/2nd compression angles, be in the phase diagram on the F angle, but in fact, combustible gas needs the time from the violent burning of lighting a fire in cylinder, for making effective power done time comparatively reasonable, the actual ignition time should be in the H angle, and the angle between F and H is the ignition advance angle r of this motor.

Embodiment's levelling: in Fig. 6 and explanation, in order to understand working principle, two demarcation strips are hit exactly by putting in the cylinder in the cylinder, but in reality is implemented, because front and back cylinder air vent is arranged, the installations such as rocking arm (16) push rod (13) of air valve and one control air valve (17) need in the middle plate, and demarcation strip is installed in the center will make enforcement cause difficulty.For this reason, the utility model in force demarcation strip by the both sides deflection of middle mind-set an angle, when turning clockwise, cylinder (14) demarcation strip is by angle of the leading original position in center, cylinder (1) demarcation strip is by identical angle of center hysteresis original position, between two angles, promptly produced an air vent that connects two cylinders, the space of vertical installation air valve (17) has promptly been arranged, as shown in Figure 1 in this air flue.

Because the displacement of demarcation strip angle in order not change compression angle, should be carried out corresponding levelling with the last two rotor baseline angles of cut of rotating shaft (11), the baseline angle after the levelling equals former compression angle and deducts two demarcation strip deviation angle sums.That is to say that when two demarcation strips were at an angle to each other in cylinder, the engine compresses angle equaled the last two rotor baseline angles of rotating shaft (11) and adds two demarcation strip angles.

Lubricated and the cooling of motor, this engine rotor inner-diameter portion whose is by being pressed into the lubricated and cooled rotor of mode that the flow of lubricant oil outlet that eccentric wheel therefrom bores in the plate (4) in rotor flows back to fuel tank by the inboard oil inlet hole that feeds of two end plates (2) (7) bearing hole.Cylinder sleeve is cooled off: because motor prime cylinder is undertaken air-breathing and compression, a level cylinder in back is undertaken burning and exhaust, therefore before the cylinder temperature be lower than the back cylinder, cylinder can adopt radiating fin to add fan cooled before the institute.Back level cylinder adopts in the cylinder sleeve casts water jacket, cools off to flow into and to flow out the cooling water mode, also can all use the water jacket mode to cool off by two cylinders.

Claims (5)

1, a kind of double rotor rotary engine, this motor has former and later two axial cylindrical shape cylinders (1) (14) that is separated by plate (4) in, respectively there is an eccentric rotor (19) (5) to be fixed in the same rotating shaft (11) with the cylinder diameter centres in the cylinder, rotating shaft (11) be fixed in the two end plates (2) (7) with the concentric two bearings hole of cylinder diameter in, stretch out outside the hole at rotating shaft (11) two, on cylinder liner (3) (6), respectively have a radial groove, in the one demarcation strip mounting groove, (25) one of demarcation strips are pressed on rotor (19) external diameter, the other end links to each other with demarcation strip connecting rod (18) and eccentric disc (20) by spring (24), eccentric disc (20) is fixed in the rotating shaft (11), it is characterized in that the vent (15) that is communicated with two cylinders (1) (14) is arranged in the plate (4), have in the vent (15) one with the valve opening of hole central vertical, one removable air valve (17) is arranged in the valve opening, eccentric two different surface beelines to rotor center of axial direction two rotors (19) (5) in rotating shaft (11) have angle, axial direction on cylinder liner (2) (7), two antarafacial center lines of two radial grooves have an angle.

2, according to the described double rotor rotary engine of claim (1), it is characterized in that cylinder (1) (14) is a kind of cylindrical cavity volume cylinder, there are an import and outlet in position near demarcation strip (25) two sides in cylinder sleeve (3) (6), the import of its prime cylinder (14) is the suction port (22) of motor, the outlet of back level cylinder (1) is exhaust opening of engine (26), the outlet of prime cylinder (14) is interpenetrated by middle plate vent (15) with the import of back level cylinder (1), there is a valve opening at position in vent (15) center and hole Vertical direction, one air valve (17) is sliding joins wherein, and this air valve (17) is controlled by cam (12) lifting body in the rotating shaft (11).

3, according to the described double rotor rotary engine of claim (1), it is characterized in that eccentric rotor (19) (5) is a circle needle roller composition of the outer roll sleeve of a cylindrical eccentric wheel and wheel and wheel and inner room, eccentric pivot hole is arranged in the eccentric wheel, the interior garden face raceway of laying needle roller is arranged in the roll sleeve, the roll sleeve both ends of the surface have several circular grooves, annular sealing strip is arranged in the groove, the axial elasticity circle is arranged under the Stamping Steel Ribbon, rotor (19) (5) external diameter becomes to roll with cylinder (1) (14) internal diameter and contacts.

4, according to the described double rotor rotary engine of claim (1), it is characterized in that demarcation strip (25) is a rectangular or square plate, its two plane is smooth smooth, the one head has the axial cylindrical bore of radial opening, this opening angle is less than 180 °, have one in the hole, to turn cylindrical body in the cylindrical hole, cylindrical body part outside the hole equals the inner arc surface of rotor (19) (5) radius for-R value, its other end has several to lead to the hole of intralamellar part, several horizontal and straight grooves are arranged on the bi-side of plate, Stamping Steel Ribbon is arranged, under the Stamping Steel Ribbon flexible in the groove.

5, according to the described double rotor rotary engine of claim (1), it is characterized in that eccentric disc (20) (8) is made up of a garden sheet eccentric disk and flanged rolling ring, one axial Xiao hole is arranged on the rolling ring flange, on the outer diametric plane of the aperture surface of rolling ring and eccentric disk raceway is arranged, there is a circle ball to lay wherein in the raceway, when eccentric disc (20) (8) was fixed in the rotating shaft (11), its center overlapped with homonymy rotor (19) (5) center.

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