CN1102198C

CN1102198C - Three-chamber dual rotors I. C. engine

Info

Publication number: CN1102198C
Application number: CN97109809A
Authority: CN
Inventors: 李宏舟; 王增善
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-18
Filing date: 1997-04-18
Publication date: 2003-02-26
Anticipated expiration: 2017-04-18
Also published as: CN1197158A

Abstract

The present invention discloses a new design scheme for a rotary internal combustion engine. The key point of the present invention is that the new design scheme is composed of three working cavities, a double-gear rotor and a separate explosion and combustion chamber. The three cavities and the chamber are communicated with a medium-pressure air valve and a high-pressure air valve by means of air passages. Operation of air suction and compression stroke are completed in a compression working cavity, and operation of eruption and exhaust stroke are completed in a rotor cavity. Explosion and combustion are independently completed in a sealing way. During each cycle period, compression and eruption are simultaneously carried out. The operation of compression and air suction in the working cavity are realized by a spinning rotor which is eccentrically arranged. Air compression is completed by means of a freely telescopic tongue plate. A pair of gear rotors are symmetrically arranged in the rotor cavity. The eruption and the exhaust stroke are completed by means of the sealing of a pinion and the work application of a big gear, and power can be outwards output.

Description

Three chambeies are two changes in internal-combustion engine

The invention belongs to a kind of new design of explosive motor, the say so a kind of new design of rotor internal-combustion engine of new direct generation moment of torsion of tool this locality.

The brace and connecting rod framework of stroke piston combustion engine has determined the natural deficiency of its mechanical efficiency.Almost just when internal-combustion engine replaces steam engine and becomes major impetus in the communications and transportation, the inventor just begins to seek the new solution of a rotary engine, makes every effort to cast aside brace and connecting rod framework, to pursue the high efficiency of internal combustion engine.Up to now, brace and connecting rod framework still has unshakable status on the motor industry.Although the scheme of rotary engine has proposed hundreds of, although made the exquisite sample that makes us acclaiming as the acme of perfection in the laboratory, that have even did the trial production of small lot, but making rotary engine still can't promote the use of common means of transportation so far, the technology difficulty, Costco Wholesale and the special material demand that are directed at owing to technological scheme get on.

The object of the invention is to provide a kind of new rotary engine structure scheme, makes every effort to accomplish compact structure, the technology manufacturing is simple, volume is little, output power is big but cost price is moderate, is beneficial to promote the use of on the various forms of transport.

Proposed by the invention is the temporary new structure scheme of a three-chamber dual rotors.Inhale and press quick-fried row's process all to comprise, but suction is pressed and quick-fried row finishes in the different operating chamber respectively, and finish simultaneously, the cycle frequency that this has just greatly improved working stroke is high-power the having laid a good foundation of small volume output.Below we further describe concrete technological scheme of the present invention.

As pot type piston formula internal-combustion engine, comprise cylinder body in the agent structure of the present invention, supporting cylinder cap and be arranged on air-breathing in the cylinder body in order to finish, compression, fire, the workpiece of exhaust and energy output torque, and is furnished with the oil supply system that is complementary with these workpieces, air supply system, ignition system, lubrication system, cooling system and the lazy-tongs (mainly being oil gas door and ignition switch etc.) of controlling work schedule between each system, key of the present invention are that the workpiece mechanism design is different from the technological scheme that has piston type or rotary internal combustion engine now fully in the cylinder body:

1, on overall structure, cylinder body has three active chambers, and the cross section in each chamber is rounded, coaxially is distributed in the cylinder body in a triangle.One of them is the air compression chamber, and cross section is complete circle.Wherein two are symmetrically distributed under the air compression chamber and are rotor chamber, and its cross section is two crossing rings, so be referred to as disjunctor shape rotor chamber again.In cylinder body, establish one between three chambeies and fire the chamber.Three active chambers and firing between the chamber communicate by middle pressure valve between gas circuit and the gas circuit and high pressure valve, and the air compression chamber is connected with fuel feeding, the air supply system of peripheral hardware.Rotor chamber is connected with the outer outlet pipe of machine.Certainly, if adopt diesel fuel, then oil supply system directly fires the chamber.Clearly, air-breathing compression stroke will be finished in the air compression chamber, and blast is finished in the chamber of firing, and outburst is impacted and in fact exhaust is finished in rotor chamber, thereby by the rotor shaft output torque.

2, the connection between each active chamber is in proper order: air compression chamber → middle pressure valve → fire chamber → high pressure valve → rotor chamber.Inject in the moment that middle pressure valve is opened through the air of pneumatics chamber compression (or air, gasoline mixture) and to fire the chamber, middle pressure valve is closed then.Igniting (or oil spout) when the chamber of firing reaches explosion condition, the high pressure valve closed condition was exploded and was carried out under the air-tight state fully this moment, produced high pressure-temperature gas.Blast finishes the back high pressure valve opens, and pressurized gas promote rotor acting from a rotor chamber spray row mouthful ejection, and the rotor acting is interval for rotation is not less than 270 °, and the waste gas of formation is in next one circulation outside the natural discharge machine.

3, for realizing that above purpose of design is provided with an eccentric air spinning rotor in the air compression chamber, straight-through air-strainer of suction port and carburetion apparatus are set on the sidewall in pneumatics chamber, other is provided with the compression exhaust mouth, and this relief opening is connected by middle pressure valve and is fired the chamber.Eccentric spinning rotor and the tangent formation seal interface of cavity wall place, and as the boundary pneumatics chamber is divided into compression chamber that communicates with relief opening and the air aspiration cavity that communicates with intakeport.Designed a sealing hyoplastron on the air spinning rotor, can be radially flexible with the rotation freedom of rotor, its tip of the tongue and pneumatics chamber sidewall offset and form dynamic seal (packing) place, and determine the dynamic border line of a certain moment compression chamber and air aspiration cavity with this.When the tip of the tongue and spinning rotor inner wall incision superius coincided, whole cavity became the maximum inhale chamber and whole air (or mixed gas) is compressed into by relief opening preceding moment when the tip of the tongue and to be fired the chamber.The volume that fires the chamber in fact is substantially equal to the minimum volume of compression chamber.According to experimental calculation repeatedly, according to different fuel oil states, the air aspiration cavity volume in the pneumatics chamber also claims effective air cavity volume, and fires the chamber volume ratio and can be controlled at 7: 1-23: between 1, decide according to dissimilar internal-combustion engines.

4, the chamber of firing is arranged between pneumatics chamber and the rotor chamber, is a high pressure resistant confined space of loading with thump.It communicates by the middle pressure valve and the grave in the pneumatics chamber gas port of indenting, and the spray row by high pressure valve and rotor chamber mouthful communicates, at indoor spark plug (when using Fuel Petroleum) or the nozzle tip (when using diesel fuel) of being provided with.Fire airtight carrying out when high pressure valve is closed, can produce very big impact load, in order further to improve its ability to bear and to improve conversion efficiency, the indoor eggshell shape inner bag of making by the high-quality material of setting up will fired among the design, filling padded coaming between inner bag and reservation seal space, in the straight-through courage of gas circuit, spark plug (or nozzle tip) is located among the inner bag when adopting inner bag.Above structure can further improve efficiency of heat engine, and has greatly reduced vibrations and noise.

5, rotor chamber is a symmetry outburst dimerous and exhaust work chamber.It is crossing circular that its cross section is, and two gear rotors is set in the chamber is accurate meshing relation.Form the fixing seal interface in the engagement place and rotor chamber is divided into the exhaust cavity that outlet pipe communicates outside the spray row chamber that links to each other with high pressure valve and the machine, the tooth top of nibbling platform leaves certain interval apart from the sidewall of rotor chamber, is the rotor chamber effective working space of reservation.1-3 big modulus wing tooth also is set on the gear rotor.The tooth top of wing tooth and rotor chamber sidewall form good accurate slipper seal and cooperate, and become that the chamber is arranged in spray and discharge chamber is analysed the dynamic border face.The side surface of wing tooth equal in fact the to withstand shocks working surface of pressure also should form good matching relationship between the wing tooth in addition, plays corresponding seal action.Gear rotor directly is connected and output torque with the power output shaft of this machine.Can adopt between the 1-3 according to the needs of different capacity specific to the fine module gear in the gear rotor, the modulus of gearwheel is selected can be with reference to following ratio 1 according to power and output torque and rotating speed qualification: 8-1: 24 select.The volume in rotor chamber and pneumatics chamber should be with reference to 8: 1-4: 1 ratio is set.The optional 1-2-3 of wing tooth, the angle of distribution β of wing tooth should be less than 90 °.

Further specify below in conjunction with accompanying drawing and the objective of the invention is how to realize:

Fig. 1 has provided structural representation of the present invention.

Wherein 1 represent the air compression chamber, 2A, 2B represent rotor chamber, and 3 representatives fire the chamber, 4 represent middle pressure valve, and 5 represent high pressure valve, and 6 represent gas circuit in the cylinder body, the outer exhaust port of 7 machine representations, 8 represent the intakeport in the pneumatics chamber, and 9 represent the compression exhaust mouth, and 10 represent the spinning rotor, 10A represents hyoplastron, 10B represents stage clip, and 10C is the tangent place of sealing of spinning rotor and pneumatics cavity wall, and 10D is contact seal place of hyoplastron and inwall.The r angle is the subtended angle at center, the compression exhaust mouth chamber of relative pneumatics with intakeport.11 represent spark plug (or nozzle tip), and the 12nd, the spray row mouth in the rotor chamber, the little tooth of 13 representatives engagement place, the big modulus wing tooth of 14 representatives, 15 is wing tooth and contact seal place of rotor chamber inwall, 16 representative spray row chambeies, 17 represent discharge chamber, 18 represent compression chamber, and 19 represent air aspiration cavity, and 20 represent cylinder body, 21 represent the gear rotor axle, 22 represent gear rotor, the relief opening that 23 representatives communicate with the outer outlet pipe of machine, and β is a wing tooth angle of distribution.

Can go out three chambeies (compression chamber 1, rotor chamber 2A, 2B), two rotors (gear rotor 2A, the 2B) structure that is designed to of the present invention from the accompanying drawing that provides, it is independent, middle by gas circuit 6 to fire chamber 3, and middle and high pressure valve 4,5 is communicated with.Spinning rotor 1 gear rotor 22 and middle and high pressure valve 4,5 and igniting trigger (or injection valve) all joins with lazy-tongs, presses the synchronous sequence execution.Each chamber is connected in a usual manner with the pipeline of the servo-system in the upper bound.When the hyoplastron 10A of spinning rotor 10 begins the air compression stroke by intakeport 8 time.Along with move the position of the tip of the tongue, compression chamber 18 volumes diminish air compression gradually than strengthening, when the tip of the tongue during near relief opening 9, middle pressure valve 4 is opened, and air moment before the tip of the tongue is by relief opening 9 will all be pressed into and fire the chamber and middle pressure valve 4 (advance angle 3-5 °) before the tip of the tongue arrives at relief opening 9 is closed.This time high pressure valve 5 is in closed condition, and the gas after the compression is sealed in and fires among the chamber 3.Whole compression work chamber 1 communicated with intakeport and finishes the overall process of suction stroke when this moment, the spinning rotor continued rotation by relief opening.Then after intakeport 8 positions were crossed on the hyoplastron 10A top in the rotor 10, a new compression stroke began.

When a new compression stroke lags 15-20 ° approximately after 1 beginning of compression work chamber, fire spark plug (or nozzle tip) 11 work in the chamber 3, in firing chamber 3, produce high pressure-temperature gas, this moment, middle pressure valve 4 all was in the situation of closing with high pressure valve 5.Fire and lag about 5-10 °, high pressure valve 5 is opened, and high pressure-temperature gas produces working pressure and acts on big modulus wing tooth 14 sides of gear rotor 22 from the spray row mouthful ejection of rotor chamber (2A and 2B), and form the rotation of thrust promotion gear rotor, by gear rotor axle 21 outside output powers.The operation interval of wing tooth 14 is not less than 270 °, spinning rotor 10 had been finished the compression work to next working gas already at the same time, high pressure valve is closed after wing tooth 14 will spray the gas of arranging to bring to relief opening 23,5 ° of-10 ° of middle pressure valves that lag behind are opened and are received next circuit working gas and pour and fire the chamber, outburst this moment, exhaust stroke are finished, and prepare to enter the quick-fried row of next circulation.

Thereby finish suction according to the above entire internal combustion engine in the time simultaneously at per unit and press the process different outputting power continuously with quick-fried row.More than narration is to circle whenever with spinning rotor 10 that promptly to rotate 360 ° be a circulation, and gear rotor also is that rotation is located by angle of swing for 360 °.The operation cycle of gear rotor is 270 °, 5 opening times of high pressure valve also be 270 ° corresponding with it.78 ° of the opening times of middle pressure valve 4, any moment can not hold together by the mesohigh valve.All the other angles that lag have illustrated no longer numerous chatting.

According to the rotary combustion engine that above design is designed to, simple in structure, compact, it is little to have a volume, defeated It is big to go out power, the rotating speed height, and the distinguishing feature that moment of torsion is big, particularly its process matched therewith is simple, to raw-material Require generally, consumable accessory is changed convenient, low price, and this will further be applied to general for rotary engine Logical transport service has been started a practicable road. Particularly the design has adopted the knot of Double-gear rotor Structure greatly improves effective expansion ratio, thereby just may greatly improve efficient and the equal power output of hot machine Rate of economizing gasoline in the situation, the test by existing model machine can prove, comparablely expands with the internal combustion engine under the power Than improving 3-3.4 doubly, the rate of economizing gasoline under the same power stage reaches 40.9%, so the present invention produces technically The effect of giving birth to will promote the development of dynamically working greatly.

Claims

1, a kind of internal-combustion engine, by cylinder body (20), supporting cylinder cap and be arranged on air-breathing in order to finish in the cylinder body (20), compress, fire, the workpiece of exhaust and output torque forms, and be furnished with and each system of oil supply system, air supply system, ignition system, lubrication system, cooling system and control that these workpieces are complementary between the lazy-tongs of work schedule, it is characterized in that:

A, cylinder body have three coaxial circular active chambers: air compression chamber (1) and two are disjunctor shape rotor chamber (2A, 2B), there is one to fire chamber (3), three active chambers and firing between the chamber (3) by gas circuit (6) and the middle pressure valve (4) and the high pressure valve (5) that are arranged between the gas circuit are communicated with, air compression chamber (1) is connected with fuel feeding, the air supply system of peripheral hardware, rotor chamber (2A, 2B) is connected with the outer outlet pipe of machine, the oil supply system pipeline directly fires chamber (3) when adopting diesel fuel

The connection order of b, each active chamber, chamber is: air compression chamber (1) → middle pressure valve (4) → fire chamber (3) → high pressure valve (5) → rotor chamber (2A, 2B),

C, an eccentric air spinning rotor (10) is set in the air compression chamber (1), sidewall is provided with intakeport (8) and is communicated with air-strainer and Carburetor, sidewall is provided with relief opening (9), it is connected by middle pressure valve (4) and fires chamber (3), eccentric air spinning rotor (10) that is provided with and the tangent formation sealing of cavity wall (10C), and will compress cavity space as the boundary and be divided into compression chamber (18) that communicates with relief opening and the air aspiration cavity (19) that communicates with suction port, air spinning rotor (10) is provided with sealing hyoplastron (10A), it also can radially freely stretch with rotor (10) rotation, the tip of the tongue and compression chamber inwall offset and form motive sealing place (10D), and determine the dynamic border line of compression chamber (18) and air aspiration cavity (19) with this

D, fire chamber (3) and be arranged between pneumatics chamber (1) and the rotor chamber (2A, 2B), it is a confined space, communicate with compression chamber relief opening (9) by middle pressure valve (4), communicate with rotor chamber spray row mouthful (12) by high pressure valve (5), indoor set-point firearm (petrol engine) or nozzle tip (diesel engine) (11)

E, rotor chamber (2A, 2B) disjunctor, it is crossing circular that its cross section is, two gear rotors (22) are set in the chamber are accurate meshing relation, shape fixing seal interface, engagement place is divided into the spray row chamber (16) that links to each other with high pressure valve (5) and discharge chamber (17) two-part that communicate with relief opening (23) with each rotor chamber (2A or 2B), 1-3 big modulus wing tooth (14) is set on the exteranl gear (22), its tooth top and rotor chamber inwall form excellent sealing (15), and become the dynamic border line of spray row chamber and discharge chamber, wing tooth (14) part also can form accurate meshing relation, tooth walk around son (22) and this acc power output shaft direct connection

The trigger mechanism of f, spinning rotor (10), gear rotor (22), middle and high pressure valve (4,5), igniting or oil spout all joins with lazy-tongs, by the synchronous sequence execution or arrive to specified position.

2, according to the said internal-combustion engine of claim 1, it is characterized in that spinning rotor (10) and the tangent sealing part of compression work chamber (11) inwall (10C) between relief opening (9) and intakeport (8), the subtended angle r at relief opening (9) and center, intakeport (8) relative pneumatics chamber (1) is less than 15 °.

3, according to the said internal-combustion engine of claim 1, it is characterized in that spinning rotor (10) goes up hyoplastron (10A) position and be located at and pass rotor center in the radial direction, in establish stage clip (10B), the tip of the tongue of hyoplastron (10A) stretches out conflict on cavity wall from the edge of rotor (10).

4,, it is characterized in that compression work chamber (1) actual volume and the ratio that fires the chamber volume are 1: 7-1: 23 according to claim 2 or 3 said internal-combustion engines.

5, according to the said internal-combustion engine of claim 1, it is characterized in that firing chamber (3) is the seal space that is reserved in the cylinder body, be provided with egg money shape inner bag, be filled with padded coaming between inner bag and headspace, gas circuit (6) leads directly to inner bag, spark plug (or nozzle tip) (11) is located among the inner bag.

6, according to the said internal-combustion engine of claim 1, it is characterized in that the air compression chamber (18) and the volume ratio in rotor spray row chamber (16) are 1: 4-1: 8, sealing tooth module on the gear rotor (22) is between 1-3, the ratio of sealing tooth and wing tooth (14) modulus is 1: 8-1: 24, and wing tooth angle of distribution β should be less than 90 °.