CN2474724Y - Rotary piston type engine - Google Patents

Abstract

The utility model relates to a rotary piston engine which comprises a stator and a rotor which are connected by bearings arranged on two ends. The rotor is capable of freely rotating in the stator. The utility model is characterized in that the circumference of the rotor is provided with two gain grooves which are respectively considered as a working air chamber and a compressed air chamber of the engine, small baffle plates are arranged in the two gain grooves to work as a working air chamber piston and a compressed air chamber piston, two baffle air wheels are respectively arranged in the two gain grooves of the rotor with one notch arranged on the cylindrical portion of the baffle air wheel, and a pair of scavenging grooves respectively arranged on stator and the rotor are capable of communicating the compressed air chamber and the working air chamber and the frontal portion of the scavenging groove of the rotor is wider than that of the scavenging groove of the stator. The utility model is characterized by stable operation, low noise, high efficiency, large power of unit volume, simple manufacture and process, good economic performance, small content of No x in the exhaust and the like. The utility model is an ideal automobile engine for families in the city.

Description

Rotary engine

Relate to the field

The utility model relates to a kind of rotary piston formula motor.

Background technique

Though the present Reciprocating engine that uses is T﹠B, various indexs have also all reached quite high level, but the basic structure of this Reciprocating engine has the defective of essence, and promptly this motor has many reciprocating quality, as piston, connecting rod, valve mechanism etc.When further improving rotating speed, the inertial force that these reciprocating quality produced sharply increases, and making bearing load with lotus significantly increases, and vibration aggravates, and may destroy the proper functioning of valve mechanism.This has just become current for improving the motor power per unit of volume, reducing the engine capacity quality and make it serious hindrance to high speed development.As being used for the 492QA of Beijing BJ212 type automobile, the 6100Q-1 h type engine h that east wind EQ140 type automobile is used all is above said reciprocating-piston engine.People are through prolonged and repeated practice, finally succeeded in developing rotary engine, KKM512NSU Wang Ke type twin rotor engine as Germany's manufacturing, the advantage of this motor is: power-to-volume ratio is big, the specific power quality is little, owing to reduced the to-and-fro motion part, so engine luggine is slight, the content that its most outstanding advantage is NOx in the exhaust is more much lower than Reciprocating engine, but also there are some problems in it.Manufacturing process as it is complicated, and Economy and durability are relatively poor, and it can't be promoted the use of on low and middle-grade automobiles.And for example, application number is that 85203161 gas port type four-strok plum blossom rotary engine is to have done a little improvement on the basis of Wang Ke type rotary engine, still has the manufacturing process complexity from designing, and combustion gas and residual gas such as can not separate fully at problem.

Summary of the invention

The purpose of this utility model provides a kind of rotary piston engine, and it has overcome the above-mentioned deficiency of Reciprocating engine, possesses the advantage of existing rotary engine, and further raising has been arranged on Economy, durability.

The purpose of model utility is to realize like this, motor is made up of stator and rotor and transmitting gear, be to connect between stator and the rotor by bearings at both ends, rotor can freely rotate in stator, it is characterized in that having on the described rotor circumference two grooves, respectively as the work air chamber and the compression air chamber of motor, one small front apron is respectively arranged in two grooves, as work air chamber piston and compression air chamber's piston, in two grooves of rotor, two retaining turbines are housed respectively, have a breach on the retaining turbine cylindrical, respectively have a pair of ventilation groove that is communicated with compression air chamber and work air chamber on stator and rotor, the forward position part of rotor ventilation groove wants broader than stator ventilation groove.

The also similar reciprocating-piston engine of work cycle of the present utility model, form by air inlet, compression, acting and four processes of exhaust, just finish this four working procedure respectively by compression air chamber and work air chamber: compression air chamber finishes air inlet and two processes of compression, and the work air chamber is finished acting and two working procedure of exhaust.Being provided with of retaining turbine can make compression air chamber's piston and work air chamber piston cross the retaining turbine along the breach of retaining turbine, can guarantee the air-breathing of compression air chamber and compression, the work acting of air chamber and carrying out smoothly of exhaust work immediately with compression air chamber and the sealing of work air chamber again.Concrete working procedure describes in detail with accompanying drawing in the back in conjunction with the embodiments.

The utility model also has following three tangible characteristics except that the advantage with rotary engine:

1. motor has two independently compression air chamber and work air chambers, so not having a bit with residual gas, its combination gas do not mix, compressed gas is lighted the back and is promoted piston motion, it is subjected to force direction is the tangent direction of rotating at rotor always, and the piston working stroke is longer, the energy of combustion gas can fully convert useful work to, and this motor is reciprocating without any parts.Based on above several principles, make that this engine efficiency height, power per unit of volume are big, operation balance, vibration be slight.

2. support rotary work by bearings at both ends between rotor and the stator.Directly do not rub between them, the linear velocity of retaining turbine and rotor groove bottom equates that do not have relative movement, it is less to wear and tear, so the durability that should invent is better.

3. this engine structure simply is beneficial to maintenance.Can form multicylinder engine easily, its better economy is easy to promote the use of.

Below in conjunction with drawings and Examples the utility model is described in further details.

Description of drawings

Fig. 1 is a work air chamber air inlet view

Fig. 2 is a work air chamber fired state schematic representation

Fig. 3 is a work air chamber exhaust condition schematic representation

Fig. 4 is the view of the ventilation groove of stator and rotor when beginning conducting

Fig. 5 is the view of the ventilation groove conducting of stator and rotor when finishing

Fig. 6 is the view in ventilation groove when acting of stator and rotor

Fig. 7 is the view of compression air chamber when beginning air inlet

Fig. 8 is the view of compression air chamber's air inlet when finishing

Fig. 9 is the view of compression air chamber when beginning to compress

Figure 10 structural representation of the present utility model

The right elevation of Figure 11 Figure 10

The left view of Figure 12 Figure 10

The A--A view of Figure 13 Figure 10

The C--C view of Figure 14 Figure 10

The B--B view of Figure 15 Figure 10

Figure 16 stator structure schematic representation

The E--E view of Figure 17 Figure 16

The F--F view of Figure 18 Figure 16

The G--G view of Figure 19 Figure 16

The D--D view of Figure 20 Figure 19

The H of Figure 21 Figure 20 is to view

Figure 22 rotor structure schematic representation

The R--R view of Figure 23 Figure 22

The T--T view of Figure 24 Figure 22

The plan view of Figure 25 Figure 22

The N--N view of Figure 26 Figure 22

Figure 27 end cover structure schematic representation

The left view of Figure 28 Figure 27

Figure 29 starts the flywheel structure schematic representation

The left view of Figure 30 Figure 29

Figure 31 keeps off turbine axle construction schematic representation

The I--I view of Figure 32 Figure 31

The J--J view of Figure 33 Figure 31

The K--K view of Figure 34 Figure 31

Figure 35 keeps off the turbine structural representation

The left view of Figure 36 Figure 35

Among the figure, 1, rotor axle 2, starting flywheel 3, end cap 4, retaining turbine bearing 5, retaining turbine axle 6, work air chamber retaining turbine 7, seal ring 8, rotor ventilation groove 9, compression air chamber's retaining turbine 10, stator 11, retaining turbine bearing 12, small gear 13, gearwheel 14, rotor bearing 15, compression air chamber 16, work air chamber 17, rotor 18, spark plug 19, work air chamber piston 20, outlet pipe 21, stator ventilation groove 22, inlet hole 23, compression air chamber's piston 24, the wealthy portion of rotor ventilation groove width

Embodiment

Referring to Figure 10～15, motor is divided into stator 10 (referring to Figure 16～21) and rotor 17 (referring to Figure 22～23) two-part, has two grooves 15,16 on the rotor, and being honored as a queen with the stator cover has formed two airtight air chambers: compression air chamber and work air chamber.After rotor was inserted in stator, each covered two ends with an end cap 3 (referring to Figure 24～25), end cap one disconnected platform and stator inner hole drive fit, and fastening with screw end cap and stator.A bearing 14 respectively is equipped with at the two end cap center, rotor axis 1 and two end cap bearing hole closely cooperate, supporting rotor, it can freely be rotated in stator, the two end cap top and the bottom respectively have a hole, bearing support 4 and bearing 11 are housed are used for installing retaining turbine axle 5, a plate washer 19,23 respectively is housed as work air chamber piston and compression air chamber's piston in two grooves of rotor, the line of two-piston and rotor center has certain included angle.Rotor circumference middle part has the ventilation groove 8 of two symmetries, and the ventilation groove wants wideer along the front end of rotor rotation than stator ventilation groove, and groove width is wealthy can be communicated with compression air chamber and work air chamber when overlapping when stator ventilation groove and rotor ventilation.Also have three little square grooves on the rotor and be used for laying seal ring 7.

The shape of stator resembles a drum (referring to Figure 16～21), be milled with two groups of four symmetrical holes with the arc milling cutter on its circumference, two retaining turbines 6,9 can be installed in the groove of rotor by these four holes, the cylindrical of retaining turbine 6,9 is close to channel bottom, retaining turbine and groove bi-side matching gap are as far as possible little, but the retaining turbine can freely be rotated in groove.Have the hole of two groups of symmetries on the stator cylindrical upper edge work air chamber center line, an assembling spark plug 18, another assembles outlet pipe 20; Have the hole of two symmetries along compression air chamber's center line, be equipped with suction tude 22, have the ventilation groove 21 of two symmetries on the work air chamber of stator and the middle partition between the compression air chamber.

Two retaining turbines 6 and 9 are fixed on the retaining turbine axle 5 jointly, and the breach of two retaining turbines has a suitable angle mutually, and when rotor rotated, the gearwheel 13 on the rotor axis drove the small gear 12 on retaining turbine axles one end.The gear ratio of gearwheel and small gear is 2: 1, and rotor is circled, and the retaining turbine just changeed for two weeks.

Below in conjunction with accompanying drawing 1～9, the working principle and the working procedure of this motor is described.

Fig. 1, Fig. 2, Fig. 3 are work air chamber three view when air inlet, igniting, exhaust, Fig. 7, Fig. 8, Fig. 9 are that compression air chamber begins that air inlet, air inlet finish, three view when beginning to compress, and Fig. 4, Fig. 5, Fig. 6 are that stator and rotor ventilation groove begin that conducting, conducting finish, three kinds of view when doing work.The combination gas of compression air chamber's right half part is compressed between piston and the retaining turbine when compression air chamber's piston 23 runs to diagram point position in Fig. 7, constantly the wide expansion portion 24 of the ventilation groove 21 on stator and epitrochanterian ventilation groove 8 is overlapping for this, (see figure 4), combination gas after the compression begins to enter the piston of work air chamber and keep off (see figure 1) between the turbine to stator ventilation groove through rotor ventilation groove, when compression air chamber's piston runs to Fig. 8 state, broad 24 of rotor ventilation groove separates with the stator groove 21 of taking a breath, ventilation stops, (see figure 5), the air chamber piston 19 of this moment working has been crossed spark plug 18, spark plug begins igniting, (see figure 2).Fig. 9 is that compression air chamber's piston is crossed the retaining turbine and crossed left half air chamber inlet hole along retaining turbine breach, begin to compress left half air chamber combustion gas, this moment stator ventilation groove and rotor ventilation groove separate always, be that compression air chamber and work air chamber are the (see figure 6) of sealing mutually, the air chamber of working this moment also does work and finishes, work air chamber piston has been crossed exhaust port, the beginning exhaust.The working procedure and right half air chamber of a left side half air chamber are identical.The technological points that can carry out above-mentioned work cycle is: shape, the position of two groups of retaining turbines are symmetrical fully, its diameter is 1/2 of a rotor groove bottom circle diameter, the linear velocity of retaining turbine cylindrical equates that with the linear velocity of rotor groove bottom circumference its angular velocity is 2 times of rotor velocity.So just can make compression air chamber's piston and work air chamber piston cross the retaining turbine along the breach of retaining turbine, the retaining turbine again can be immediately with groove (being compression air chamber and work air chamber) sealing, to guarantee the air-breathing of compression air chamber and compression, the work acting of air chamber and carrying out smoothly of exhaust work.

Key problem in technology of the present utility model is the processing and the assembling of retaining turbine, rotor groove.The technical requirements of rotor groove is: the degree of finish of channel bottom and bi-side should be more than 1.6, circular runout should be greater than 0.02mm, the concentricity of rotor groove bottom surface circumference and rotor cylindrical is not more than 0.01, trench bottom corners should have the chamfering of R1, its chamfering precision R must not surpass ± and the bi-side and the bi-side matching gap of retaining turbine of 0.1mm groove must not be greater than 0.02mm, and its roughness should reach 1.6.To keep off the turbine axle during assembling earlier and penetrate the work air chamber, in retaining turbine and the compression air chamber's retaining turbine, two retaining turbines are put into separately rotor groove respectively, and turn rotor, make epitrochanterian compression air chamber piston 23 and work air chamber piston 19, put into the breach of each self catcher turbine respectively, to keep off the turbine axle with screw again is fixed together, to keep off the turbine axial compression again goes in bearing 11 endoporus at two ends, adjust three screws of bearing support, make two retaining turbines be close to the rotor groove bottom, and can rotate freely.

Claims (1)

1. rotary engine, form by stator and rotor and transmitting gear, be to connect between stator and the rotor by bearings at both ends, rotor can freely rotate in stator, it is characterized in that having on the described rotor circumference two grooves, respectively as the work air chamber and the compression air chamber of motor, one small front apron is respectively arranged in two grooves, as work air chamber piston and compression air chamber's piston, in two grooves of rotor, two retaining turbines are housed respectively, have a breach on the retaining turbine cylindrical, respectively have a pair of ventilation groove that is communicated with compression air chamber and work air chamber on stator and rotor, the forward position part of rotor ventilation groove wants broader than stator ventilation groove.

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