CN204961076U - Rotary engine - Google Patents

Abstract

The utility model provides a rotary engine, includes the shell, firstly sways the piston, the second sways piston, engine rotor and combustion chamber rotor. The inside main cavity room that forms of this shell, first piston groove and second piston groove have been seted up on the lateral wall of this main cavity room, first sway the piston include with the first normal running fit's of pin joint portion first rotation portion, and close and sliding fit's first sliding part with first slip cambered surface is airtight, the second sway the piston include with the second pin joint normal running fit's of portion second rotation portion, and close and sliding fit's second sliding part with second slip cambered surface is airtight, this engine rotor is rotationally installed in the main cavity room, and the centre bit of this main cavity room is in the pivot of engine rotor, this combustion chamber rotor is rotationally installed in the combustion chamber, and the centre bit of this combustion chamber is in the pivot of combustion chamber rotor. The utility model discloses a rotary engine's structural reliability is better, work efficiency is higher.

Description

A kind of rotary engine

Technical field

The utility model relates to a kind of rotary engine.

Background technique

Traditional motor is conventional engine, and its compression stroke, combustion stroke and expansion stroke are all carry out in single cylinder, and therefore, just cause it to there is the too much defect of kinetic energy rejection, thus be difficult to realize High Rotation Speed, output power is relatively low.In addition, traditional reciprocating-piston engine in the course of the work, larger interaction force is produced between piston and bent axle, this just requires that piston and bent axle have higher intensity, therefore, need the size increasing piston, bent axle and cylinder body to make up the defect of its strength deficiency, this just causes the volume of whole motor relatively large.

General rotary engine can overcome the above-mentioned defect of reciprocating-piston engine, but, it is poor all to there is structural reliability in current rotary engine, the defects such as working efficiency is lower, if publication number is New rotor engine disclosed in the patent documentation of CN103899413A, its reset of waving piston is realized by elastic element, because the rotating speed of rotary engine is very fast, wave piston when swinging fast, elastic element easily produces and damages or lost efficacy, and, in this New rotor engine, the combustion gas recoil produced when lighting a fire for preventing firing chamber is in the gas-entered passageway of firing chamber, at the gas-entered passageway of firing chamber, one-way valve is set, because the resistance of one-way valve is larger, the working efficiency of rotary engine can be reduced, and, one-way valve is easily damaging after break-make fast and repeatedly.

Model utility content

For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of rotary engine, and its structural reliability is better, working efficiency is higher.

For achieving the above object, the utility model provides the first technological scheme:

A kind of rotary engine, comprising:

Shell, this enclosure forms a main chamber, the sidewall of this main chamber offers first piston groove and the second piston groove, first piston groove and the second piston groove distribute along the Central Symmetry of this main chamber, the two ends of first piston groove are respectively equipped with the first pin-joint part and the first slip cambered surface, the side of first piston groove is provided with the first opening be communicated with this main chamber, the two ends of the second piston groove are respectively equipped with the second pin-joint part and the second slip cambered surface, and the side of the second piston groove is provided with the second opening be communicated with this main chamber; The sidewall of this main chamber is also provided with firing chamber, and this firing chamber is communicated in main chamber by combustion gas hole of charging, and this combustion chamber is also provided with ignition mechanism; The sidewall of main chamber also offers and the suction port of ft connection and air outlet, suction port and air outlet lay respectively at the relative both sides of the second piston groove; At least one end of this main chamber is provided with flared channels, and the narrower one end of this flared channels is formed and forms the first attachment hole with the pressurized gas tap hole of combustion chamber, wider one end;

Be arranged in first piston groove first waves piston, first waves piston envelope to be located on the first opening and to surround the first secondary cavity with the inwall of first piston groove, first waves piston comprises the first rotation section of being rotatably assorted with the first pin-joint part and closes and the first slide part be slidably matched with the first slip cambered surface is airtight, and the first slide part forms the first laminating end near one end of main chamber; First waves piston is provided with at least one and flared channels vent slot one to one, one end of this vent slot forms the pressurized air access aperture being communicated in main chamber, this pressurized air access aperture is positioned at first and waves on the sidewall of piston away from first piston groove, the other end of this vent slot forms the second attachment hole, this second attachment hole is positioned at first and waves the side of piston near main chamber end, and the second attachment hole is used for being communicated with the first attachment hole when first waves piston oscillation and waves when piston is positioned at inner dead point and the first attachment hole disconnects first; This combustion gas hole of charging is positioned at the outside that this first piston groove is close to the side of the first slip cambered surface;

Be arranged in the second piston groove second waves piston, second waves piston envelope to be located on the second opening and to surround the second secondary cavity with the inwall of the second piston groove, second waves piston comprises the second rotation section of being rotatably assorted with the second pin-joint part and closes and the second slide part be slidably matched with the second slip cambered surface is airtight, and the second slide part forms the second laminating end near one end of main chamber;

Engine rotor, be arranged in this main chamber and this main chamber's airtight partition is become two the first sub-chamber, this engine rotor is installed in rotation in main chamber, and this main chamber is centrally located in the rotating shaft of engine rotor, the outer periphery of this engine rotor form fitting surface, and fitting surface to be used for when engine rotor rotates and first to fit and hold and second fit to hold and slide and gas close fit;

Chamber assembly rotor, be arranged in firing chamber and this firing chamber airtight partition is become two the second sub-chamber, this chamber assembly rotor is installed in rotation in firing chamber, and being centrally located in the rotating shaft of chamber assembly rotor of this firing chamber.

Shell comprises cylinder body and is installed on two end caps of these cylinder body both sides respectively, this cylinder body offers a through hole, two end caps are respectively used to cover to be established the both sides of this through hole and surrounds described main chamber with this cylinder body, described first piston groove and the second piston groove are offered on the sidewall of this through hole, and described flared channels is opened on this end cap.

Cylindrically, this engine rotor is ellipticity in this main chamber, the diameter of this main chamber and the equal diameters of engine rotor major axis.

The two ends of this engine rotor are respectively equipped with two the first sealed ends, and this first sealed end is used for sliding and gas close fit with the inwall of main chamber.

This firing chamber is positioned at the outside that this first piston groove is close to the side of the first slip cambered surface.

This firing chamber cylindrically, this chamber assembly rotor ovalize, the diameter of this firing chamber and the equal diameters of chamber assembly rotor major axis.

Engine rotor rotates along clockwise direction relative to main chamber, and suction port and relief opening arrange along the counter clockwise direction at main chamber center successively.

First slide part forms the bizet of projection near one end of first piston groove, bizet and the first slip cambered surface are fitted, first piston groove and the relative of bizet and sidewall that is that establish is provided with the first receiving groove, the first receiving groove is used for waving when piston is positioned at inner dead point first holding bizet; Bizet is provided with airtight portion near one end of the first receiving groove, and the first slide part and the first slip cambered surface are by airtight portion air-tight fit.

For achieving the above object, the utility model provides the second technological scheme:

A kind of rotary engine, comprising:

Shell, this enclosure forms a main chamber, the sidewall of this main chamber offers first piston groove and the second piston groove, first piston groove and the second piston groove distribute along the Central Symmetry of this main chamber, the two ends of first piston groove are respectively equipped with the first pin-joint part and the first slip cambered surface, the side of first piston groove is provided with the first opening be communicated with this main chamber, the two ends of the second piston groove are respectively equipped with the second pin-joint part and the second slip cambered surface, and the side of the second piston groove is provided with the second opening be communicated with this main chamber; The sidewall of this main chamber is also provided with firing chamber, and this firing chamber is communicated in main chamber by combustion gas hole of charging, and this combustion chamber is also provided with ignition mechanism; The sidewall of main chamber also offers and the suction port of ft connection and air outlet, suction port and air outlet lay respectively at the relative both sides of the second piston groove; At least one end of this main chamber is provided with air flue, and one end of this air flue forms the pressurized air access aperture, the other end that are communicated in main chamber and forms the pressurized air tap hole being communicated in firing chamber;

Be arranged in first piston groove first waves piston, first waves piston envelope to be located on the first opening and to surround the first secondary cavity with the inwall of first piston groove, first waves piston comprises the first rotation section of being rotatably assorted with the first pin-joint part and closes and the first slide part be slidably matched with the first slip cambered surface is airtight, and the first slide part forms the first laminating end near one end of main chamber; This combustion gas hole of charging is positioned at the outside that this first piston groove is close to the side of the first slip cambered surface;

Be arranged in the second piston groove second waves piston, second waves piston envelope to be located on the second opening and to surround the second secondary cavity with the inwall of the second piston groove, second waves piston comprises the second rotation section of being rotatably assorted with the second pin-joint part and closes and the second slide part be slidably matched with the second slip cambered surface is airtight, and the second slide part forms the second laminating end near one end of main chamber;

Engine rotor, be arranged in this main chamber and this main chamber's airtight partition is become two the first sub-chamber, this engine rotor is installed in rotation in main chamber, and this main chamber is centrally located in the rotating shaft of engine rotor, the outer periphery of this engine rotor form fitting surface, and fitting surface to be used for when engine rotor rotates and first to fit and hold and second fit to hold and slide and gas close fit; When fitting surface and first fit hold fit time, pressurized air access aperture is positioned at first and waves the side of piston away from the first slide part;

Chamber assembly rotor, be arranged in firing chamber and this firing chamber airtight partition is become two the second sub-chamber, this chamber assembly rotor is installed in rotation in firing chamber, and being centrally located in the rotating shaft of chamber assembly rotor of this firing chamber.

The beneficial effects of the utility model are:

Compared to prior art, the technique effect of rotary engine of the present utility model is as follows:

1, flared channels on the vent slot of piston and main chamber end and combustion chamber wave by first in main chamber, the pressurized air of such main chamber is without the need to being sent in firing chamber through first piston groove, therefore, first waves piston surrounds the first closed secondary cavity away from the side of main chamber and the sidewall of first piston groove, second waves piston surrounds the second closed secondary cavity away from the side of main chamber and the sidewall of the second piston groove, the closed air of the first secondary cavity and the second secondary cavity is respectively first and waves piston and second and wave piston and outwards reset and provide power, wave piston and second without using elastic element and wave piston reposition force is provided for first, the inefficacy causing elastic element after repeatedly compressing can be avoided like this, thus cause this rotary engine normally to work,

2, owing to being provided with chamber assembly rotor in firing chamber, when this ignition device, chamber assembly rotor by pressurized gas tap hole from ignition mechanism every being located in the second different sub-chamber, like this, without the need to arranging one-way valve in the gas-entered passageway of firing chamber, one-way valve can be avoided frequently to be caused damage by larger compression shock, and after eliminating one-way valve, effectively can reduce the air resistance of one-way valve generation, and fully stir combustion gas, be beneficial to again the burning of combustion gas, the working efficiency of rotary engine can be improved.

Like this, the structural reliability of this rotary engine is better, working efficiency is higher.

Accompanying drawing explanation

Fig. 1 is the first working state structure schematic diagram of the present utility model;

Fig. 2 is the partial enlarged drawing at L place in Fig. 1;

Fig. 3 is the second working state structure schematic diagram of the present utility model;

Fig. 4 is the partial enlarged drawing at M place in Fig. 3;

Fig. 5 is the 3rd working state structure schematic diagram of the present utility model;

Fig. 6 is the partial enlarged drawing at N place in Fig. 5;

Fig. 7 is the structural representation of the second embodiment of the present utility model;

Fig. 8 is the partial enlarged drawing at P place in Fig. 7;

Wherein: 10, shell; 101, cylinder body; 1011, through hole; 11, main chamber; 111, suction port; 112, air outlet; 12, first piston groove; 121, the first pin-joint part; 122, the first slip cambered surface; 124, the first secondary cavity; 125, the first receiving groove; 13, the second piston groove; 131, the second pin-joint part; 132, the second slip cambered surface; 134, the second secondary cavity; 14, firing chamber; 141, combustion gas is charged hole; 15, ignition mechanism; 151, spark plug; 152, oil nozzle; 16, flared channels; 161, pressurized gas tap hole; 162, the first attachment hole; 17, air flue; 171, pressurized air access aperture; 172, pressurized air tap hole; 20, first piston is waved; 21, the first rotation section; 22, the first slide part; 221, the first laminating end; 222, bizet; 2221, airtight portion; 23, vent slot; 231, pressurized air access aperture; 232, the second attachment hole; 30, second piston is waved; 31, the second rotation section; 32, the second slide part; 321, the second laminating end; 40, engine rotor; 41, fitting surface; 42, the first sealed end; 50, chamber assembly rotor.

Embodiment

Below, by reference to the accompanying drawings and embodiment, the utility model is described further:

As shown in Figures 1 to 7, rotary engine of the present utility model, comprises shell 10, first and waves piston 20, second and wave piston 30, engine rotor 40 and chamber assembly rotor 50.This shell 10 inside forms a main chamber 11, the sidewall of this main chamber 11 offers first piston groove 12 and the second piston groove 13, first piston groove 12 and the second piston groove 13 distribute along the Central Symmetry of this main chamber 11, the two ends of first piston groove 12 are respectively equipped with the first pin-joint part 121 and the first slip cambered surface 122, the side of first piston groove 12 is provided with the first opening be communicated with this main chamber 11, the two ends of the second piston groove 13 are respectively equipped with the second pin-joint part 131 and the second slip cambered surface 132, the side of the second piston groove 13 is provided with the second opening be communicated with this main chamber 11, the sidewall of this main chamber 11 is also provided with firing chamber 14, and this firing chamber 14 is communicated in main chamber 11 by combustion gas hole 141 of charging, and this inside, firing chamber 14 is also provided with ignition mechanism 15, the sidewall of main chamber 11 also offers and the suction port 111 of ft connection and air outlet 112, suction port 111 and air outlet 112 lay respectively at the relative both sides of the second piston groove 13, at least one end of this main chamber 11 is provided with flared channels 16, and the narrower one end of this flared channels 16 forms the pressurized gas tap hole 161 be communicated with firing chamber 14, wider one end forms the first attachment hole 162, and this flared channels 16 is mutually isolated with first piston groove 12.First waves piston 20 is arranged in first piston groove 12, first waves piston 20 envelope to be located on the first opening and to surround the first secondary cavity 124 with the inwall of first piston groove 12, first secondary cavity 124 makes first to wave the pressure of piston 20 away from first piston groove 12 for producing when being waved piston 20 air pressure contracting by first, first waves piston 20 comprises the first rotation section 21 be rotatably assorted with the first pin-joint part 121, and close and the first slide part 22 be slidably matched with the first slip cambered surface 122 is airtight, first slide part 22 forms the first laminating end 221 near one end of main chamber 11, first waves piston 20 is provided with at least one and flared channels 16 vent slot 23 one to one, one end of this vent slot 23 forms the pressurized air access aperture 231 being communicated in main chamber 11, this pressurized air access aperture 231 is positioned at first and waves on the sidewall of piston 20 away from first piston groove 12, the other end of this vent slot 23 forms the second attachment hole 232, this second attachment hole 232 is positioned at first and waves the side of piston 20 near main chamber 11 end, second attachment hole 232 to be communicated with the first attachment hole 162 when piston 20 swings for waving first and to wave first when piston 20 is positioned at inner dead point and the first attachment hole 162 disconnects (particularly, first waves piston 20 is positioned at inner dead point and refers to that first waves piston 20 and be rocked to limit position toward the inner side of first piston groove 12), this combustion gas hole 141 of charging is positioned at the outside that this first piston groove 12 is close to the side of the first slip cambered surface 122.Second waves piston 30 is arranged in the second piston groove 13, second waves piston 30 envelope to be located on the second opening and to surround the second secondary cavity 134 with the inwall of the second piston groove 13, second secondary cavity 134 makes second to wave the pressure of piston 30 away from the second piston groove 13 for producing when being waved piston 30 air pressure contracting by second, second waves piston 30 comprises the second rotation section 31 be rotatably assorted with the second pin-joint part 131, and close and the second slide part 32 be slidably matched with the second slip cambered surface 132 is airtight, second slide part 32 forms the second laminating end 321 near one end of main chamber 11.Engine rotor 40 is arranged in this main chamber 11 and this main chamber 11 airtight partition is become two the first sub-chamber, this engine rotor 40 is installed in rotation in main chamber 11, and in the rotating shaft being centrally located at engine rotor 40 of this main chamber 11, the outer periphery of this engine rotor 40 form fitting surface 41, fitting surface 41 for when engine rotor 40 rotates and the first end 221 and second end 321 of fitting of fitting slide and gas close fit.Chamber assembly rotor 50 is arranged in firing chamber 14 and this firing chamber 14 airtight partition is become two the second sub-chamber, and this chamber assembly rotor 50 is installed in rotation in firing chamber 14, and in the rotating shaft being centrally located at chamber assembly rotor 50 of this firing chamber 14.

The working principle of above-mentioned motor is as follows, as depicted in figs. 1 and 2, engine rotor 40 rotates along clockwise direction, after suction port 111 is crossed in the end of engine rotor 40, two the first sub-chamber that main chamber 11 is separated into by engine rotor 40, first waves the first laminating end 221 of piston 20 and the airtight laminating of fitting surface 41 of engine rotor 40, each first sub-chamber is waved piston 20 by first again and is separated into two closed chambers, therefore, now, main chamber 11 is separated into chamber A, chamber B, cavity C, these four chambers of chamber D, its middle chamber A is compression chamber, chamber B is acting chamber, cavity C is exhaust chamber, chamber D is air-breathing chamber, as shown in Figure 3 and Figure 4, along with being rotated further of engine rotor 40, the space of cavity C reduces gradually, gas discharges outside from air outlet 112, and the space of chamber D increases gradually, and extraneous gas enters chamber D from suction port 111, the gas of chamber A is compressed, thus enter pressurized air access aperture 231, after vent slot 23, second attachment hole 232, first attachment hole 162, flared channels 16, be discharged to firing chamber 14 from pressurized gas tap hole 161, as shown in Figure 5 and Figure 6, engine rotor 40 is rotated further, until the two ends of engine rotor 40 turn to first respectively wave piston 20 and second when waving piston 30 place, the gas of chamber A is all compressed in firing chamber 14, at this moment, pressurized gas tap hole 161 will be crossed in the end of chamber assembly rotor 50 namely, after pressurized gas tap hole 161 is crossed in the end of room to be combusted rotor 50, ignition mechanism 15 start igniting, chamber assembly rotor 50 by pressurized gas tap hole 161 with light a fire position every being located in the second different sub-chamber.Then, engine rotor 40 is rotated further again, this rotary engine gets back to again the working state shown in Fig. 1 and Fig. 2, after ignition, chamber assembly rotor 50 is rotated further, and hole 141 of sub-chamber and the combustion gas after igniting being charged is communicated with, like this, combustion gas hole 141 combustion gas out of charging just is thrown in chamber B, thus promotes engine rotor 40 and rotate clockwise.

Particularly, the ignition mechanism 15 of chamber assembly rotor 50 in firing chamber 14 is when lighting a fire, chamber assembly rotor 50 by pressurized gas tap hole 161 from igniting position every being located in the second different sub-chamber, like this, the combustion gas produced during igniting can be made can not to enter in chamber A, reaction force is produced to the rotation of engine rotor 40.And, when the two ends of engine rotor 40 turn to respectively first wave piston 20 and second wave piston 30 place time, second waves piston 30 presses by the top of engine rotor 40, first waves piston 20 and second waves piston 30 and moves to limit position (i.e. inner dead point) respectively to the direction inside first piston groove 12 and the second piston groove 13, and the gas of the first secondary cavity 124 and the second secondary cavity 134 inside is all made air pressure increase by compression; When the two ends of engine rotor 40 cross first wave piston 20 and second wave piston 30 place time, first secondary cavity 124 and the second secondary cavity 134 wave piston 20 and second to first respectively and wave piston 30 and produce outside thrust, make first to wave piston 20 and second to wave piston 30 and outwards move, thus make the first laminating end 221 and the second laminating end 321 again with the airtight laminating of fitting surface 41 of engine rotor 40.

The technique effect of rotary engine of the present utility model is as follows:

1, main chamber 11 is communicated with firing chamber 14 with the flared channels 16 on main chamber 11 end by the first vent slot 23 waving piston 20, the pressurized air of such main chamber 11 is without the need to being sent in firing chamber 14 through first piston groove 12, therefore, first waves piston 20 surrounds the first closed secondary cavity 124 away from the side of main chamber 11 and the sidewall of first piston groove 12, second waves piston 30 surrounds the second closed secondary cavity 134 away from the side of main chamber 11 and the sidewall of the second piston groove 13, the closed air of the first secondary cavity 124 and the second secondary cavity 134 is respectively first and waves piston 20 and second and wave piston 30 and outwards reset and provide power, wave piston 20 and second without using elastic element and wave piston 30 reposition force is provided for first, the inefficacy causing elastic element after repeatedly compressing can be avoided like this, thus cause this rotary engine normally to work,

2, owing to being provided with chamber assembly rotor 50 in firing chamber 14, when this ignition mechanism 15 is lighted a fire, chamber assembly rotor 50 by pressurized gas tap hole 161 from igniting position every being located in the second different sub-chamber, like this, without the need to arranging one-way valve in the gas-entered passageway of firing chamber 14, one-way valve can be avoided frequently to be caused damage by larger compression shock, and after eliminating one-way valve, effectively can reduce the air resistance of one-way valve generation, the working efficiency of rotary engine can be improved.

Like this, the structural reliability of this rotary engine is better, working efficiency is higher.

Further, shell 10 comprises cylinder body 101 and is installed on two end caps of these cylinder body 101 both sides respectively, this cylinder body 101 offers a through hole 1011, two end caps are respectively used to cover to be established the both sides of this through hole 1011 and surrounds described main chamber 11 with this cylinder body 101, described first piston groove 12 and the second piston groove 13 are offered on the sidewall of this through hole 1011, and described flared channels 16 is opened on this end cap.Certainly, shell 10 also can be the structure of one or other forms of structure.

Further, this main chamber 11 cylindrically, this engine rotor 40 is in ellipticity, the diameter of this main chamber 11 and the equal diameters of engine rotor 40 major axis.

Further, the two ends of this engine rotor 40 are respectively equipped with two the first sealed ends 42, and this first sealed end 42 is for sliding and gas close fit with the inwall of main chamber 11.

Preferably, this firing chamber 14 is positioned at the outside that this first piston groove 12 is close to the side of the first slip cambered surface 122.

Preferably, this chamber assembly rotor 50 and this engine rotor 40 synchronous axial system, its mode of execution can be linked by tooth belt mechanism or the interlock of other driving mechanisms.Certain chamber assembly rotor 50 also can be driven by external impetus, as long as ensure operationally, the end of engine rotor 40 is when waving piston 20 top and establishing to inner dead point by first, pressurized gas tap hole 161 will be crossed in the end of chamber assembly rotor 50 namely, and when ignition mechanism 15 is lighted a fire, chamber assembly rotor 50 by pressurized gas tap hole 161 from igniting position every being located in the second different sub-chamber, after ignition, chamber assembly rotor 50 is rotated further, and hole 141 of sub-chamber and the combustion gas after igniting being charged is communicated with.

Again preferably, this firing chamber 14 cylindrically, this chamber assembly rotor 50 ovalize, the diameter of this firing chamber 14 and the equal diameters of chamber assembly rotor 50 major axis.

Further, when being applied to petrol engine, this ignition mechanism 15 comprises spark plug 151 and oil nozzle 152, this chamber assembly rotor 50 for when this ignition device by pressurized gas tap hole 161 from spark plug 151 every being located in the second different sub-chamber, preferably, because petrol engine needs oil spout in advance, therefore oil nozzle 152 is located at the side near pressurized gas tap hole 161, like this, can oil spout before ignition, when spark plug 151 is lighted a fire, oil nozzle 152 and spark plug 151 are arranged in the second different sub-chamber.

When being applied to diesel engine, because diesel oil mixes meeting spontaneous combustion with pressurized air, therefore this ignition mechanism 15 only includes oil nozzle 152, during oil nozzle 152 oil spout, diesel oil mixes meeting spontaneous combustion with pressurized air, now, this chamber assembly rotor 50 by pressurized gas tap hole 161 from oil nozzle 152 every being located in the second different sub-chamber.

Further, when engine rotor 40 rotates along clockwise direction relative to main chamber 11, suction port 111 and relief opening arrange along the counter clockwise direction at main chamber 11 center.

Preferably, first slide part 22 forms the bizet 222 of projection near one end of first piston groove 12, bizet 222 and the first slip cambered surface 122 are fitted, first piston groove 12 is with the relative of bizet 222 and sidewall that is that establish is provided with the first receiving groove 125, the first receiving groove 125 for waving when piston 20 is positioned at inner dead point first holds bizet 222; Bizet 222 is provided with airtight portion 2221, first slide part 22 and the first slip cambered surface 122 by airtight portion 2221 air-tight fit near one end of the first receiving groove 125.Because first waves piston 20 when being rocked to outside first piston groove 12, combustion gas charges 141 pairs, hole engine rotor 40 when producing thrust, also oblique upper left thrust can be produced to the first slide part 22, piston 20 can be waved like this push away in first piston groove 12 establish first, the first the first laminating end 221 waving piston 20 be departed from the fitting surface 41 of engine rotor 40 and causes airtight inefficacy.And the utility model forms the bizet 222 of projection near one end of first piston groove 12 at the first slide part 22, airtight portion 2221 is provided with near one end of the first receiving groove 125 at bizet 222, like this, the sealing station of the first slide part 22 and the first slip cambered surface 122 is just positioned at bizet 222 one end near the first receiving groove 125, such combustion gas hole 141 gas out of charging can enter between bizet 222 and the first slip cambered surface 122, first slide part 22 is produced to the thrust of oblique left bottom, first can be made like this to wave piston 20 and can not be charged by combustion gas that to return first piston groove 12 inner for hole 141 gas pushing tow out.

As shown in Figure 7 and Figure 8, for the second embodiment of the present utility model, be with the difference of above-described embodiment, firing chamber 14 is not communicated with main chamber 11 with vent slot 23 by the flared channels 16 of segmentation, but by offering the air flue 17 being directly communicated with main chamber 11 and firing chamber 14 on the end of main chamber 11.Particularly, at least one end of main chamber 11 is provided with air flue 17, one end of this air flue 17 forms the pressurized air access aperture 171, the other end that are communicated in main chamber 11 and forms the pressurized air tap hole 172 being communicated in firing chamber 14; When fitting surface 41 and first fit end 221 fit time, pressurized air access aperture 171 is positioned at first and waves the side of piston 20 away from the first slide part 22.Remaining structure and same as the previously described embodiments, working principle is also identical, does not repeat them here.

To one skilled in the art, according to technological scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the utility model claim.

Claims (9)

1. a rotary engine, is characterized in that, comprising:

Shell, this enclosure forms a main chamber, the sidewall of this main chamber offers first piston groove and the second piston groove, first piston groove and the second piston groove distribute along the Central Symmetry of this main chamber, the two ends of first piston groove are respectively equipped with the first pin-joint part and the first slip cambered surface, the side of first piston groove is provided with the first opening be communicated with this main chamber, the two ends of the second piston groove are respectively equipped with the second pin-joint part and the second slip cambered surface, and the side of the second piston groove is provided with the second opening be communicated with this main chamber; The sidewall of this main chamber is also provided with firing chamber, and this firing chamber is communicated in main chamber by combustion gas hole of charging, and this combustion chamber is also provided with ignition mechanism; The sidewall of main chamber also offers and the suction port of ft connection and air outlet, suction port and air outlet lay respectively at the relative both sides of the second piston groove; At least one end of this main chamber is provided with flared channels, and the narrower one end of this flared channels is formed and forms the first attachment hole with the pressurized gas tap hole of combustion chamber, wider one end;

Be arranged in first piston groove first waves piston, first waves piston envelope to be located on the first opening and to surround the first secondary cavity with the inwall of first piston groove, first waves piston comprises the first rotation section of being rotatably assorted with the first pin-joint part and closes and the first slide part be slidably matched with the first slip cambered surface is airtight, and the first slide part forms the first laminating end near one end of main chamber; First waves piston is provided with at least one and flared channels vent slot one to one, one end of this vent slot forms the pressurized air access aperture being communicated in main chamber, this pressurized air access aperture is positioned at first and waves on the sidewall of piston away from first piston groove, the other end of this vent slot forms the second attachment hole, this second attachment hole is positioned at first and waves the side of piston near main chamber end, and the second attachment hole is used for being communicated with the first attachment hole when first waves piston oscillation and waves when piston is positioned at inner dead point and the first attachment hole disconnects first; This combustion gas hole of charging is positioned at the outside that this first piston groove is close to the side of the first slip cambered surface;

Be arranged in the second piston groove second waves piston, second waves piston envelope to be located on the second opening and to surround the second secondary cavity with the inwall of the second piston groove, second waves piston comprises the second rotation section of being rotatably assorted with the second pin-joint part and closes and the second slide part be slidably matched with the second slip cambered surface is airtight, and the second slide part forms the second laminating end near one end of main chamber;

Engine rotor, be arranged in this main chamber and this main chamber's airtight partition is become two the first sub-chamber, this engine rotor is installed in rotation in main chamber, and this main chamber is centrally located in the rotating shaft of engine rotor, the outer periphery of this engine rotor form fitting surface, and fitting surface to be used for when engine rotor rotates and first to fit and hold and second fit to hold and slide and gas close fit;

Chamber assembly rotor, be arranged in firing chamber and this firing chamber airtight partition is become two the second sub-chamber, this chamber assembly rotor is installed in rotation in firing chamber, and being centrally located in the rotating shaft of chamber assembly rotor of this firing chamber.

2. rotary engine as claimed in claim 1, it is characterized in that, shell comprises cylinder body and is installed on two end caps of these cylinder body both sides respectively, this cylinder body offers a through hole, two end caps are respectively used to cover to be established the both sides of this through hole and surrounds described main chamber with this cylinder body, described first piston groove and the second piston groove are offered on the sidewall of this through hole, and described flared channels is opened on this end cap.

3. rotary engine as claimed in claim 1, it is characterized in that, cylindrically, this engine rotor is ellipticity in this main chamber, the diameter of this main chamber and the equal diameters of engine rotor major axis.

4. rotary engine as claimed in claim 1, it is characterized in that, the two ends of this engine rotor are respectively equipped with two the first sealed ends, and this first sealed end is used for sliding and gas close fit with the inwall of main chamber.

5. rotary engine as claimed in claim 1, it is characterized in that, this firing chamber is positioned at the outside that this first piston groove is close to the side of the first slip cambered surface.

6. rotary engine as claimed in claim 1, is characterized in that, this firing chamber cylindrically, this chamber assembly rotor ovalize, the diameter of this firing chamber and the equal diameters of chamber assembly rotor major axis.

7. rotary engine as claimed in claim 1, it is characterized in that, engine rotor rotates along clockwise direction relative to main chamber, and suction port and relief opening arrange along the counter clockwise direction at main chamber center successively.

8. rotary engine as claimed in claim 1, it is characterized in that, first slide part forms the bizet of projection near one end of first piston groove, bizet and the first slip cambered surface are fitted, first piston groove and the relative of bizet and sidewall that is that establish is provided with the first receiving groove, the first receiving groove is used for waving when piston is positioned at inner dead point first holding bizet; Bizet is provided with airtight portion near one end of the first receiving groove, and the first slide part and the first slip cambered surface are by airtight portion air-tight fit.

9. a rotary engine, is characterized in that, comprising:

Shell, this enclosure forms a main chamber, the sidewall of this main chamber offers first piston groove and the second piston groove, first piston groove and the second piston groove distribute along the Central Symmetry of this main chamber, the two ends of first piston groove are respectively equipped with the first pin-joint part and the first slip cambered surface, the side of first piston groove is provided with the first opening be communicated with this main chamber, the two ends of the second piston groove are respectively equipped with the second pin-joint part and the second slip cambered surface, and the side of the second piston groove is provided with the second opening be communicated with this main chamber; The sidewall of this main chamber is also provided with firing chamber, and this firing chamber is communicated in main chamber by combustion gas hole of charging, and this combustion chamber is also provided with ignition mechanism; The sidewall of main chamber also offers and the suction port of ft connection and air outlet, suction port and air outlet lay respectively at the relative both sides of the second piston groove; At least one end of this main chamber is provided with air flue, and one end of this air flue forms the pressurized air access aperture, the other end that are communicated in main chamber and forms the pressurized air tap hole being communicated in firing chamber;

Be arranged in first piston groove first waves piston, first waves piston envelope to be located on the first opening and to surround the first secondary cavity with the inwall of first piston groove, first waves piston comprises the first rotation section of being rotatably assorted with the first pin-joint part and closes and the first slide part be slidably matched with the first slip cambered surface is airtight, and the first slide part forms the first laminating end near one end of main chamber; This combustion gas hole of charging is positioned at the outside that this first piston groove is close to the side of the first slip cambered surface;

Be arranged in the second piston groove second waves piston, second waves piston envelope to be located on the second opening and to surround the second secondary cavity with the inwall of the second piston groove, second waves piston comprises the second rotation section of being rotatably assorted with the second pin-joint part and closes and the second slide part be slidably matched with the second slip cambered surface is airtight, and the second slide part forms the second laminating end near one end of main chamber;

Engine rotor, be arranged in this main chamber and this main chamber's airtight partition is become two the first sub-chamber, this engine rotor is installed in rotation in main chamber, and this main chamber is centrally located in the rotating shaft of engine rotor, the outer periphery of this engine rotor form fitting surface, and fitting surface to be used for when engine rotor rotates and first to fit and hold and second fit to hold and slide and gas close fit; When fitting surface and first fit hold fit time, pressurized air access aperture is positioned at first and waves the side of piston away from the first slide part;

Chamber assembly rotor, be arranged in firing chamber and this firing chamber airtight partition is become two the second sub-chamber, this chamber assembly rotor is installed in rotation in firing chamber, and being centrally located in the rotating shaft of chamber assembly rotor of this firing chamber.