Summary of the invention
The object of this invention is to provide a kind of take the novel rotary type motor that natural air or helium be working medium, i.e. a kind of rotary volume-variable expansion compression engine.
Rotary volume-variable expansion compression engine of the present invention, comprise: housing 1, two ends size cylinder type cam and spacer, rotor shaft 7, slide plate 5 and high temperature resistant bearing 6, slide plate 5 is housed on the discal rotor of described rotor shaft, rotor shaft is connected with big or small cylinder type cam and the spacer at axle two ends by ceramic bearing or gas dynamic pressure spiral flute type radial bearing, in the big or small cylinder type cam at rotor shaft and slide plate and two ends and spacer being packaged in housing 1 again, formed rotary volume-variable expansion compression engine.
Described housing 1 forms (on annulus, establishing the inlet hole C that calms the anger) by cylindrical tube 1.1 and the annulus exhaust cavity 1.2 (establishing expansion exhaust port B above annulus) and the air-inlet cavity 1.3 that are enclosed within pipe two ends band inside groove.
Big or small cylinder type cam and the spacer at described two ends, divide into inflating end and air end of booster.Inflating end size cylinder type cam and spacer, by roundlet column type cam 2 wherein, be placed on (wherein roundlet column type cam 2 is provided with expansion inlet hole A) in great circle column type cam 4, size cylinder type cam peak is mutually 180 degree, in the middle of size cylinder type cam, with spacer 3, separate, form two two cavitys that differ in size.Wherein on inflating end spacer, have the circular hole communicating, realize two cavitys and communicate, formed expansion space, the two poles of the earth.Air end of booster size cylinder type cam and spacer, be equipped with and identical two the big or small cylinder type cams 2 ', 4 ' of housing inflating end, and wherein roundlet column type cam 2 ' is placed in great circle column type cam 4 ', and is mutually 180 degree.These two the big or small cylinder type cam of big or small cylinder type cam and left side installation directions are also mutually 180 degree, and two curved surfaces having realized the right and left cylinder type cam are equidistant, so that isometric slide plate can slide on two curved surfaces of cylinder type cam.In the middle of air end of booster size cylinder type cam, with spacer 3 ', separate, form two two cavitys that differ in size.The circular hole that wherein on spacer, nothing communicates, has formed the two poles of the earth compression volume.
Described rotor shaft 7 and slide plate 5, on the dish-type rotor of rotor shaft 7, open inside and outside two ring through hole, every circle is 4 rhombic holes, linear rolling track is housed in hole, in guide rail, adopt ceramic ball to make rolling element (so that high temperature resistant), the slip that rhombus slide plate 5 in load hole is reduced friction, slide plate 5 in load hole, its two has the groove of dress straight line shell fragment, in groove, put into resistant to elevated temperatures shell fragment, afterwards wear-resisting scraping blade is packed in groove, make scraping blade can fluting in energy free-extension, to realize scraping blade, can play good seal action.Refractory ceramics bearing or gas dynamic pressure screw type radial bearing 6 are installed between the axle two ends of rotor shaft and roundlet column type cam, simultaneously between cylinder type cam and axle, between spacer and rotor and two ends of rotor adopt maze type sealing.To reduce gas leakage loss.
Rotary volume-variable expansion compression engine of the present invention is to realize like this
Rotary expansion compressor is mainly by casing 1, great circle column type cam 4,4 ', and roundlet column type cam 2,2 ', rotor shaft 7, slide plate 5 and spacer 3,3 ' form.On the inflating end roundlet column type cam 2 of rotary expansion compressor, have inlet hole A, on casing 1, inflating end has expansion exhaust port B, has compressor inlet hole C in casing 1 compression end, has compression exhaust hole D on roundlet column type cam 2 '.The upper intermediate exhaust hole E in addition of compression end great circle column type cam 4 ', the upper cooling air inlet hole F in addition of compression end roundlet column type cam 2 ', rotor shaft 7 rotor expansion end faces and casing 1 internal surface, spacer 3 inner and outer surface between large and small cylinder type cam 2,4 curved surfaces and cylinder type cam have formed two expansion cavitys that differ in size.And slide plate is housed in these two expansion cavitys, each cavity has been divided into four little expansion element volumes.
Rotor shaft 7 rotor compression end faces and casing 1 internal surface, the spacer 3 ' inner and outer surface between large and small cylinder type cam 2 ', 4 ' curved surface and cylinder type cam has formed two compaction cavums that differ in size.And slide plate is housed in these two compaction cavums, each cavity has been divided into four little compression element volumes.
High temperature compressed gas working medium is entered by inflating end roundlet column type cam 2 inlet hole A, through too small expansion element volume, change and expand after acting, with certain pressure, enter large expansion element volume and change further acting, finishing the gas of merit discharges cooling through exhaust port B, the casing the other end is compression end, the gas working medium of low-temp low-pressure is sucked by suction port C, through excessive compression chamber, enter compression element volume, through convergent element volume, realize compression, compressed gas is discharged cooling by exhaust port E, cooled compression Working medium gas is entered the compression element volume of little compression chamber by suction port F, by compression element volume, dwindle again further compression, gas working medium after compression is discharged through relief opening D with certain pressure, to realize changeable compression, save compression work.Gas after compression enters heating equipment again, enters inflating end after heating again, carries out adiabatic expansion circular work next time.It is the open cycle of working medium that this rotary volume-variable expansion compression engine can adopt air, also can adopt helium to do the closed cycle of working medium.
Below in conjunction with example, rotary positive-displacement expansion compression engine of the present invention is described in detail
Fig. 1 is the sectional drawing of rotary expansion compressor
Fig. 2 is the sectional drawing casing figure of rotary expansion compressor
Fig. 3 is cylinder type cam in rotary expansion compressor map 1
Fig. 4 is rotary expansion compressor map 1 rotor axle figure
Fig. 5 is slide plate figure in rotary expansion compressor map 1
Fig. 6 is spacer figure in rotary expansion compressor
Fig. 7 is that rotary expansion compressor inner ring vane motion first quartile is to the schematic diagram of fourth quadrant
Fig. 8 is that rotary expansion compressor inner ring vane motion first quartile is to the schematic diagram of fourth quadrant
As shown in Figure 1, limit, left and right respectively has two pairs of cylinder type cams 2, 4 and 2 ' and 4 ', wherein inflating end roundlet column type cam 2 packs in great circle column type cam 4, and be mutually 180 degree, centre packs spacer 3 into, when with center rotor 7 expansion end faces, during casing 1 inner surfaces enclose, inflating end forms respectively two volumes that differ in size, two volumes that differ in size are connected by the aperture of spacer, formed respectively double expansion volume, and right-hand member roundlet column type cam 2 ' packs in great circle column type cam 4 ', and be mutually 180 degree, centre packs spacer 3 ' into, when with center rotor axle 7 rotor compression end faces, during casing 1 inner surfaces enclose, compression end forms respectively two two stage compression volumes that differ in size, wherein big column cam is provided with chill vent E, roundlet column type cam is provided with cooling air suction port F, be mutually between two 180 jiaos of two ends that pack center rotor axle into inflating end cylinder type cam respectively again, by refractory ceramics bearing 6 or gas dynamic pressure spiral flute type radial bearing, be connected with center rotor axle 7, make left and right large, little two cylinder type cams curved surface facing each other forms equidistant, in center rotor axle, on dish-type rotor, have 8 rhombic holes, linear rolling guide (rolling of guiding pairs is to realize by being arranged on the ceramic ball of guiding pairs the inside) is housed in hole in advance, wherein 8 slide plates of Internal and external cycle 5 insert and are arranged in center rotor hole, again by outer end casing 1 use bolt and two ends great circle column type cam 4, 4 ' is connected, the center rotor axle 7 of expansion compressor capable and the cylinder type cam 2 at two ends, 4 and 2 ', spacer sleeve 3 in 4 ', 3 ' is just encapsulated in casing, by slide plate equal in length, formed whole rotary expansion compressor.
Housing shown in Fig. 21 forms (on annulus, establishing the inlet hole C that calms the anger) by cylindrical tube 1.1 and the annulus exhaust cavity 1.2 (establishing expansion exhaust port B above annulus) and the air-inlet cavity 1.3 that are enclosed within pipe two ends band inside groove.
Figure 3 shows that cylinder type cam, wherein this part curved surface adopts silicon nitride ceramics (SI3N4) to make lining, and silicon nitride ceramics has good resistance to wear resistance and self lubricity, high hardness, corrosion-resistant, high temperature resistant, thermal shock resistance and heat-resistant anti-fatigue performance are all good, and adiabaticity is also fine.
Figure 4 shows that rotary compression swelling compressor rotor shaft 7, on rotor shaft 7 rotors, have slide plate piece hole, divide inner ring and outer ring, rolling linear guide (rolling guide is to make ball by ceramic ball to have resistance to high temperature) is equipped with in slide plate piece hole, and silicon nitride ceramics slide plate can be slided in hole in very little friction.Dish-type two ends of rotor face adopts high temperature resistant silicon nitride ceramics to be connected with alloy dish-type rotor.
Figure 5 shows that rotary expansion compressor sliding blade 5, material is silicon nitride ceramics, and slide plate two ends have sulculus, packs high-temperature resistant direct wire spring sheet 5.1 in groove into, resistant to elevated temperatures silicon nitride wear resistant pottery is housed and does anti-abrading block 5.2.
Figure 6 shows that the inflating end spacer 3 of rotary expansion compressor, spacer 3 adopts silicon nitride ceramic material, spacer packs between big or small cylinder type cam two cams is separated from two spaces that differ in size, centre communicates with aperture, make gas can become little space to flow into large space, can better expand.Right spacer is middle without aperture
Embodiment
As shown in Figure 7, the gas working medium of compression enters a minute two-way by A hole, one tunnel promotes the direction rotation that blade expands to volume to blade 5.2 bottoms through roundlet column type cam negative camber, blade promotes by this gas pressure and rotor shaft slide plate in rotation process is subject to the thrust of the other end curved surface and the effect of straight line shell fragment and guarantee that slide plate can be against on the curved inner wall of roundlet column type cam more closely, play good seal action, and another road of pressurized gas dwindles direction rotation to another blade 5.1 bottoms promotion blades to volume through roundlet column type cam negative camber, pressurized gas acts on and on slide plate 5.1 and 5.2, respectively produces contrary torque, but slide plate 5.2 stretches out long (comparing with slide plate 5.1), active area is large, the torque producing is greater than the torque that slide plate 5.1 produces, therefore under the torque differences effect that rotor produces on corresponding slide plate, move in the direction of the clock, gas after turning to maximum element volume work done enters compound expansion cavity by the discharge of spacer hole and further expands, as shown in Figure 8, enter the gas in compound expansion space to slide plate acting principle as mentioned above, certain gas acts on and on slide plate 5.3 and 5.4, respectively produces contrary torque, but slide plate 5.4 stretches out long (comparing with slide plate 5.3), active area is large, the torque producing is greater than the torque that slide plate 5.3 produces, therefore under the torque differences effect that rotor produces on corresponding slide plate, move in the direction of the clock, finally by the gas of crossing after compound expansion, reach very low-pressure, less to till rotor acting.Then by the exhaust port on casing, discharge expansion chamber.
The casing the other end is compression end, be equipped with two of inflating ends large, the little cylinder type cam 2 ' that equates completely, 4 ', wherein roundlet column type cam 2 ' is placed in great circle column type cam 4 ', size cylinder type cam peak is mutually 180 degree, in the middle of size cylinder type cam, with spacer 3 ', separate, now two big or small cylinder type cams and inflating end size cylinder type cam is also mutually 180 degree, two curved surfaces having realized the right and left cylinder type cam are equidistant (so that slide plate can move flexibly in expansion chamber and compression chamber), rotor shaft end face and casing inner surface, greatly, spacer between roundlet column type cam negative camber and cylinder type cam has formed two compaction cavums that differ in size, and roundlet column type cam curved surface and rotor shaft end face, slide plate and spacer internal surface have formed several little secondary seal compression element volumes, and great circle column type cam curved surface and rotor shaft end face, slide plate and spacer outer surface, casing inner surface has formed several large primary seal compression element volumes.
As shown in Figure 8, under the effect of the swelling pressure, driven rotor shaft rotation, during rotor, under the thrust of curved surface and the effect of slide plate inner shrapnel at compression or inflating end great circle column type cam, the curved inner wall of the great circle column type cam of slide plate and compression end is close to, so curved inner wall of outer ring slide plate and great circle column type cam, rotor shaft rotor end-face, outer casing inner wall face and spacer 3 ' outer surface have formed four variable element volumes, rotation due to rotor, cause element volume by minimum value, to become gradually large rotating volume within a week, by maximum, diminished gradually again, until minimum, rotation along with rotor, element volume increases gradually, while communicating with suction port C, start air-breathing, air-breathing end when element volume reaches maximum, rotor continues rotation, element volume starts to dwindle, gas is compressed, when being connected with big column cam upper air-vent E, start exhaust, the gas of discharging sucks element volume with the inlet hole F of two-stage compression chamber and communicates, as shown in Figure 7, the gas of being discharged by big column cam upper air-vent E is after cooling, by roundlet column type cam F hole, sucked again, the now maximum beginning of two-stage compression chamber element volume is air-breathing, rotor continues clockwise direction and rotates, two-stage compression element volume starts to dwindle gradually, when two pole compression slide plates rotations 180 are spent, it is minimum that secondary primitive reaches, now communicate with exhaust port D, when reaching a hour exhaust, finishes element volume, when rotor continues rotation, enter pressure of inspiration(Pi) compression process next time.The gas of discharging enters external heating device, and to pressurized gas heating, the gas after heating enters inflating end again, carries out adiabatic expansion circular work next time.It is the open cycle of working medium that this rotary expansion compression engine can adopt air, also can adopt helium to do the closed cycle of working medium.
The advantage of rotary volume-variable expansion compression engine of the present invention is: this device can adopt high temperature compressed gas-powered, adopted pottery to do thermal-protective material, make well to realize adiabatic expansion, in this motor inflate compression space in whole device than great, make overall volume little, component are few, and processing is simple, adopted pottery to do material, greasy property is good, and heat energy is utilized efficiently, be used in middle temperature drive of high-pressure gas simultaneously, outlet temperature is low, can realize refrigeration, and compressor end pressurized gas is emitted heat can also provide hot water.And can adopt fuel cheap and easy to get, can utilize solar energy and biological energy source as fuel.Its exhaust pollution is few, and noise is low, and this,, for alleviating the demand of the world to high-grade energy, reduces pollution and be undoubtedly favourable.