CN201517446U - Reed type flexible rotor engine - Google Patents
Reed type flexible rotor engine Download PDFInfo
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- CN201517446U CN201517446U CN2009202231927U CN200920223192U CN201517446U CN 201517446 U CN201517446 U CN 201517446U CN 2009202231927 U CN2009202231927 U CN 2009202231927U CN 200920223192 U CN200920223192 U CN 200920223192U CN 201517446 U CN201517446 U CN 201517446U
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- reed
- rotor
- cylinder
- engine
- type flexible
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model discloses a reed type flexible rotor engine, comprising an air cylinder, a front end cap, a rear end cap, a reed rotor, a lubricating mechanism, a cooling mechanism, a fuel feeding system and a power output shaft, wherein the cross section of the rotor is formed by surrounding one or more pairs of circular arcs, the semidiameters of opposite circular arcs are the same, two reeds are arranged at each of two ends of the circular arcs with the same semidiameters, one end of the reed is connected with the circular arc of the rotor, the other end thereof is contacted with the inner wall of the air cylinder by means of the elasticity of the reed, the reeds arranged on the rotor, the rotor, the inner wall of the cylinder and the fore and after end caps of the air cylinder form a closed space, namely a burning chamber, in which an air-intaking, compressing, working and exhausting stroke is performed. One or more pairs of burning chambers are formed in the air cylinder according to the amount of the reeds, or a plurality of flexible rotor engine are connected side by side to a power output shaft to improve the power output. The rotor engine has simple structure, convenient production, simple lubricating mechanism and good sealability, and can be used for miniature power source.
Description
Technical field
The utility model belongs to the dynamic power machine field, relates to a kind of rotary engine, particularly a kind of reed-type flexible rotor engine.
Background technique
Existing internal-combustion engine is divided into three kinds of reciprocating internal combustion engine, gas turbine and rotary engine.Reciprocating internal combustion engine is by piston and connecting rod the heat energy of oil inflame to be converted into mechanical energy, its shortcoming is that complex structure, volume are big, the thermal efficiency is low, can not directly realize power output, and will change by connecting rod, piston set can not obtain balance completely because of reciprocal inertia force and the moment of inertia that to-and-fro motion causes, along with this shortcoming of raising of engine speed is more and more obvious.Gas turbine is to impact impeller by combustion gas to realize transformation of energy, directly realize power output, but the energy of its consumption is many, and structure is complicated, is used on the large-scale means of transportation more.
Ripe Wankel RC configuration in the rotary engine, its cylinder is the non-cylinder curved surface of inward turning line, rotor is done complicated planetary motion according to internal gear, itself complex structure, make difficulty, sealing problem is difficult to solve, and in addition, the eccentric uneven rotation of three-apexed rotor can make motor produce very big vibration.Except rotary polygonal piston engine, people are also developed and the isostructural rotary engine of blade, such as, " the rotary sheet type rotary engine; this rotary engine relies on the spring that is located at the blade bottom that blade is pressed on the cylinder inner wall by 4 blades are set in rotor that China Patent No. CN2355105Y proposes.This rotary engine structure complexity, higher to sealing and lubricating requirement, in the process of microminiaturization, will there be very big problem in its processing.
Summary of the invention
The utility model proposes a kind of reed-type flexible rotor engine at the deficiency of existing reciprocating internal combustion engine, gas turbine and Wankel RC configuration.The utility model replaces traditional three-apexed rotor by the reed rotor, has replaced eccentric rotor in the past by the centering rotor, has realized that the centering of rotor is rotated.Have simple in structurely, easily manufactured, be easy to miniaturization and microminiaturization, running steadily, lubricating structure is simple, the characteristics that output power is big.
Reed-type flexible rotor engine of the present utility model comprises cylinder, front cover, rear end cover, reed rotor, fuel supply system, power output shaft etc.The engine cylinder-body cross section is an approximate ellipsoidal, is respectively equipped with gas-entered passageway, exhaust passage and ignition mechanism on cylinder body.Put a reed rotor with cylinder body with barycenter, it is the cylinder that cross section is surrounded by a pair of or a pair of above circular arc, and wherein relative radius of arc is identical, at the two ends of the identical circular arc of radius two reeds is installed respectively.One end of reed is connected by a row screw with the rotor circular arc, and seals with sealer, and the other end relies on elasticity of spring leaf to be connected with the cylinder inner wall extruding.Reed and cylinder inner wall contact jaw have circular arc angle, can reduce the scraping of casing wall and reduce the resistance of rotor rotation.According to reed quantity difference, a pair or more of confined space, just firing chamber can be set in cylinder.The circular arc number of rotor cross-section is identical with the number of firing chamber, and for example: 2 circular arcs produce 2 firing chambers, and 4 circular arcs produce 4 firing chambers.The firing chamber number is many more, and the time lag of igniting is more little, and output power is big more.Two reed symmetries that are installed in the identical circular arc two ends of radius are respectively put, reed and back reed before dividing, forward and backward reed all are when rotating according to the rotor clockwise direction, for the firing chamber, at first the reed by gas-entered passageway is preceding reed, the back be the back reed.Rotor center is provided with the axis hole that matches with power output shaft.Motor front and rear cover center is provided with bearing mounting hole, and power output shaft is connected by bearing with front and rear cover by the axis hole of rotor center.Engine ignition mechanism is arranged between intake stroke and the working stroke combustion chamber volume and reaches hour, on the pairing cylinder wall in this firing chamber.The intake efficiency of cylinder so that more mixed gas enters the firing chamber in the intake stroke, thereby is improved in reed position after when the cylinder intake passage generally should reach maximum near confined space.Reed position before when the exhaust passage is arranged on the working stroke combustion chamber volume and reaches maximum, this is because rotor is rotated further, preceding reed and back reed change with the acting area that the burning indoor gas contacts, the pressure of explosion that burning produces begins rotor is done negative work, and the exhaust passage is set at this, can greatly reduce this rotor resistance so that the firing chamber communicates with atmosphere.
Rotor is packed in the cylinder, and reed is because precompression contacts the formation firing chamber with inboard wall of cylinder block.Rotor is in rotation process, reed moves according to cylinder profile under rotor and self elastic reaction, because the difference of cylinder body radial dimension enters after the compression stroke, the distance between rotor and the cylinder body shortens, reed produces resiliently deformable, when guaranteeing combustion chamber sealing,, make combustion chamber volume reduce with rotor and cylinder acting in conjunction, the indoor inflammable gas of compression and combustion satisfies motor thus and moves needed volume-variation requirement.
When rotor turns clockwise, preceding reed in one group of reed arrives suction port, this moment, inflammable mixture entered the space between two reeds, along with the rotation of rotor, the space between two reeds increases, and the mixed gas that enters increases, when after reed by after the suction port, intake stroke finishes, and the spatial volume maximum between two reeds is the lower dead center of rotor at this moment.Subsequently, cylinder inner wall compresses two reeds, makes two reeds to rotor bow, because the pressure of gas between the elasticity of reed and reed, reed still is close to inboard wall of cylinder block, when rotor forwards top dead center to, two reeds are compressed to limit position, and it is minimum that the space between reed reaches, and compression stroke finishes.Plug ignition makes inflammable mixture burn, and the explosive force actuating spring and the rotor rotation of generation arrive relief opening up to preceding reed, and this is a working stroke.In the working stroke, because the variation of cylinder radial dimension, the area of contact of forward and backward reed and firing chamber gas changes.The pressure of explosion of burning is greater than effective acting area to the back reed to effective acting area of preceding reed, promotes rotor rotation thus.The curvature of the pairing cylinder shaped conductor of working stroke can less than intake stroke the curvature of corresponding molded lines, can impel mixture combustion complete simultaneously so that the thrust that burning produces maximizes the use thus, reduce discharge of harmful gases.
Preceding reed is by behind the relief opening, and waste gas after burning is discharged by relief opening, and back reed is by behind the relief opening, and exhaust stroke finishes.In working stroke, the pressure of explosion that burning produces acts on the reed, and two reed intermediate portions produce resiliently deformable, stored energy laterally before and after making.When the firing chamber with after the exhaust passage is connected, reed to the waste gas after burning acting, releases energy in restorable process, helps combustion gas rapidly and thoroughly.Rotor rotates a circle, and to burn the chamber number identical for the period finished and cylinder combustion.
Reed-type flexible rotor engine both can adopt the ignition way igniting, also can adopt the compression ignite mode to light a fire.When adopting the ignition way igniting, the high ignition energy that utilizes spark plug to produce is lighted mixed gas.When the rotary engine of employing compression ignite mode was in compression stroke, outer bound pair mixed gas acting made mixture temperature raise, because higher compression ratio, temperature can reach the burning-point of mixed gas, makes mixture combustion do work thus.Adopt the compression ignite mode, can reduce engine accessory power rating institute energy requirement, improve the output power of motor.
Reed-type flexible rotor engine only need lubricate the bearing that is positioned on the front and rear cover, and this has determined the simple structural type of reed-type flexible rotor engine lubrication system.Bearing on the front and rear cover can reach lubricated purpose by smear oiling agent on bearing, does not need the lubricating structure of other complexity.
For preventing that this kind rotary engine is cooled off by air-cooled mode because of the overheated parts that damage, be provided with a plurality of radiating fin in the cylinder block outside, thereby increase heat diffusion area, improve cooling effectiveness.
Reed-type flexible rotor engine cooperates with the highi degree of accuracy of cylinder end face by front and rear cover and seals.That is to say by the high-precision processing technology to make front and rear cover end face and cylinder end mask that high precision be arranged, reduce the machining error between end cap and the cylinder end face.This makes reed-type flexible rotor engine not need extra sealing mechanism, simplifies the structure greatly, is suitable for microminiature processing.
In the rotor banding movable contact spring rotating process, be subjected to cylinder wall and act on surface friction drag on the reed.The size of surface friction drag is relevant with two factors: the size of the power that the friction factor of cylinder wall and reed and cylinder wall contact jaw are suffered.Reed-type flexible rotor engine is because the needs of sealing are had relatively high expectations to the friction factor of cylinder wall, and this has reduced the suffered surface friction drag of rotor greatly.In addition, the pressure of explosion that burning produces will be far longer than the suffered surface friction drag of rotor, thereby can guarantee the high speed rotating of rotor.
A kind of reed-type flexible rotor engine, according to the output power demand, can be provided with manyly on its rotor to circular arc, increase the number of firing chamber, also can on a power output shaft, be arranged side by side a series of this kind reed-type flexible rotor engines, thereby strengthen output power.
The beneficial effects of the utility model:
1. the component geometry appearance structure that reed-type flexible rotor engine comprised is simple, be applicable to middle-size and small-size motor, also be applicable to the manufacturing of tiny engine, when reducing cost, can also reach very high machining accuracy, can solve the axial seal problem thus.
2. compare with rotary polygonal piston engine, do not have eccentric structure in this rotary engine, the harmful effect that the imbalance of therefore can avoiding rotating is brought reduces the vibration of each parts, reduces noise.
3. this rotary engine parts that need lubricate are few, and this has just simplified the structure of motor greatly.
4. owing to adopt and to have flexible reed rotor, the elastic reaction of reed can be so that rotor be close to inboard wall of cylinder block, thereby solves the radial seal problem.
5. this rotary engine has higher specific power and moment of torsion output, and rotor can reach very high rotating speed.
6. the inwall of reed-type flexible rotor engine cylinder has lower surface roughness, matches with the fillet on reed top, makes the rotation of rotor have less resistance.
Description of drawings
Fig. 1 is a reed-type flexible rotor engine firing chamber A intake stroke schematic representation;
Fig. 2 is a reed-type flexible rotor engine firing chamber A compression stroke schematic representation;
Fig. 3 is a reed-type flexible rotor engine firing chamber A working stroke schematic representation;
Fig. 4 is a reed-type flexible rotor engine firing chamber A exhaust stroke schematic representation;
Fig. 5 and Fig. 6 are reed-type flexible rotor engine structure assembling schematic representation.
Among the figure, A B-firing chamber, A-firing chamber, reed 6-gas-entered passageway 7-exhaust passage B 8-spark plug 9-bearing 1 10-front cover 11-bearing 2 12-power output shaft 13-driving pin 14-rear end cover 15-radiating fin behind the reed 5-before the 1-spark plug mounting hole 2-rotor 3-cylinder 4-
Embodiment
With the reed-type flexible rotor engine with two firing chambers is example, and this flexible rotor engine rotates in the direction of the clock, adopts the mode of spark ignitor to light a fire.Among the figure, 8 is spark plug, in this position spark plug is installed.Rotor 2 links to each other with engine power output shaft 12 by driving pin 13, and places in the cylinder 3.Simultaneously, power output shaft 12 links to each other with the cylinder front and rear cover by bearing, and front and rear cover is installed to cylinder by bolt.Preceding reed 4 is installed in the identical circular arc two ends of radius with back reed 5 one ends by screw.Owing to there is precompression, the reed the other end is conflicted with cylinder inner wall and is connected.Front and back reed 4 and 5, rotor 2, cylinder 3 and front and rear cover 10 and 14 have surrounded an airtight firing chamber A, and relative airtight firing chamber, space is B therewith.Distance between the cylinder front and rear cover should keep higher quality of fit with rotor height, to reduce axial gas leakage, improves the working efficiency of rotary engine.
Shown in Figure 2, be research object with firing chamber A, when the preceding reed 4 of A arrived gas-entered passageway 6, firing chamber A was communicated with gas-entered passageway, and inflammable mixture enters in the A.Along with the rotation of rotor, preceding reed expands outwardly, and the volume of firing chamber A increases, and the inflammable mixture that enters also increases thereupon, when back reed 5 by after the gas-entered passageway, firing chamber A sealing, intake stroke end.Rotor is rotated further, and the cylinder radial distance reduces, and reed 4 and back reed 5 are close to rotor before compressing, and firing chamber A volume reduces, and the inflammable mixture that compression has entered is up to reaching top dead center position, position promptly shown in Figure 2, compression stroke end.At this moment, the spark plug discharge is lighted mixed gas by the gap that retains between two reeds, explosive force actuating spring and rotor rotation that mixture combustion produces, and working stroke begins, as shown in Figure 3.Among Fig. 4, when reed before the A of firing chamber arrives exhaust passage 7, firing chamber A is communicated with the waste gas of mixture combustion generation and discharges cylinder by the exhaust passage with the exhaust passage, simultaneously the cylinder radial dimension reduce make before reed 4 and back reed 5 close to rotor, the volume of space A reduces, and compressed exhaust gas quickens to discharge cylinder.When after reed by the exhaust passage, exhaust stroke finishes.
Exhaust passage 7 links to each other with exhaust gas circulating device, and the heat that waste gas carries heats the inflammable mixture that intake stroke enters, and improves the efficient of rotary engine with this.Gas-entered passageway is connected with Carburetor, and the inflammable mixture that the rotation of rotor will form in Carburetor sucks cylinder.Be provided with a plurality of radiating fin 15 at cylinder outer wall, cool off parts, reduce parts because of the overheated possibility of damaging in air-cooled mode.
This is a circulation of reed-type flexible rotor engine.Because have two firing chamber A and B on a rotor, rotor whenever rotates a circle, flexible rotor engine is promptly finished two work cycle.
Claims (9)
1. reed-type flexible rotor engine, comprise cylinder, front cover, rear end cover, the reed rotor, lubricating structure, cooling mechanism, fuel supply system, power output shaft, wherein, the engine cylinder-body cross section is an approximate ellipsoidal, on cylinder body, be respectively equipped with gas-entered passageway, exhaust passage and ignition mechanism, it is characterized in that: the reed rotor of putting with barycenter with cylinder body, it is the cylinder that cross section is surrounded by a pair of or a pair of above circular arc, wherein relative radius of arc is identical, at the two ends of the identical circular arc of radius two reeds are installed respectively, one end and the rotor circular arc of reed are affixed, and with sealer sealing, the other end relies on elasticity of spring leaf to push with cylinder inner wall to be connected; According to reed quantity difference, a pair or more of confined space is set in cylinder, firing chamber just, the circular arc number of rotor cross-section is identical with the number of firing chamber; Two reed symmetries that are installed in the identical circular arc two ends of radius are respectively put, reed and back reed before dividing, forward and backward reed all are when rotating according to the rotor clockwise direction, for the firing chamber, at first the reed by gas-entered passageway is preceding reed, the back be the back reed; Rotor center is provided with the axis hole that matches with power output shaft, and motor front and rear cover center is provided with bearing mounting hole, and power output shaft is connected by bearing with front and rear cover by the axis hole of rotor center.
2. according to the described a kind of reed-type flexible rotor engine of claim 1, its feature also is: described engine ignition mechanism is arranged between intake stroke and the working stroke combustion chamber volume and reaches hour, on the pairing cylinder wall in this firing chamber.
3. according to the described a kind of reed-type flexible rotor engine of claim 1, its feature also is: reed position after when described cylinder intake passage generally should reach maximum near confined space.
4. according to the described a kind of reed-type flexible rotor engine of claim 1, its feature also is: reed position before when described cylinder exhaust passage is arranged on the working stroke combustion chamber volume and reaches maximum.
5. according to the described a kind of reed-type flexible rotor engine of claim 1, its feature also is: reed and cylinder inner wall contact jaw have circular arc angle; Described motor both can adopt the ignition way igniting, also can adopt the compression ignite mode to light a fire.
6. according to the described a kind of reed-type flexible rotor engine of claim 1, its feature also is: only need the lubricated bearing that is positioned on the front and rear cover.
7. according to the described a kind of reed-type flexible rotor engine of claim 1, its feature also is: described motor cooperates with the highi degree of accuracy of cylinder end face by front and rear cover and seals; Friction factor to cylinder wall is had relatively high expectations, and the pressure of explosion that burning produces is greater than the suffered surface friction drag of rotor.
8. according to the described a kind of reed-type flexible rotor engine of claim 1, its feature also is: by increasing the quantity of rotor cross-section circular arc, increase the quantity that cylinder combustion is burnt the chamber.
9. according to the described a kind of reed-type flexible rotor engine of claim 1, its feature evil is: according to the demand of output power, two or more reed-type flexible rotor engines are connected on the power output shaft side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202231927U CN201517446U (en) | 2009-10-10 | 2009-10-10 | Reed type flexible rotor engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202231927U CN201517446U (en) | 2009-10-10 | 2009-10-10 | Reed type flexible rotor engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517446U true CN201517446U (en) | 2010-06-30 |
Family
ID=42498168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202231927U Expired - Fee Related CN201517446U (en) | 2009-10-10 | 2009-10-10 | Reed type flexible rotor engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517446U (en) |
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2009
- 2009-10-10 CN CN2009202231927U patent/CN201517446U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20121010 |