CN201802481U - Rotor engine and piston thereof - Google Patents
Rotor engine and piston thereof Download PDFInfo
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- CN201802481U CN201802481U CN2010205536741U CN201020553674U CN201802481U CN 201802481 U CN201802481 U CN 201802481U CN 2010205536741 U CN2010205536741 U CN 2010205536741U CN 201020553674 U CN201020553674 U CN 201020553674U CN 201802481 U CN201802481 U CN 201802481U
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- rotary engine
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Abstract
The utility model discloses a rotor engine and a piston thereof. The piston comprises a piston body and a connecting rod, wherein the piston body is matched with a cylinder barrel of the rotor engine; a first end of the connecting rod is connected with a crank pin of a crankshaft arranged in a shell of the rotor engine; and a second end of the connecting rod is fixedly connected with the piston body. In the utility model, a hinge pin and a hinge seat are not needed between the connecting rod and the piston body, so that the piston body is prevented from being deformed when the hinge pin and the hinge seat are stressed, and can be further made into the structure with a circular cross section which is vertical to the direction of the reciprocating motion of the piston body. Therefore, the piston provided by the utility model not only can be convenient in processing the piston body and guarantees the processing accuracy of the piston body, but also can ensure the matching relationship between the piston body and the cylinder barrel.
Description
Technical field
The utility model relates to a kind of motor, and in particular, particularly a kind of piston of rotary engine also relates to a kind of rotary engine that comprises this piston.
Background technique
The motor of polytype and structure is disclosed at present.Wherein, the technology of reciprocating engine is the most ripe, is most widely used; Though rotary polygonal piston engine is used in market, the scope of using is also very limited.Swiss Patent document CH71501 discloses a kind of rotary engine, please refer to Fig. 1, and this figure is the structure principle chart of the disclosed rotary engine of Swiss Patent document CH71501.This rotary engine comprises stationary part (not shown) and rotor portion, and rotor portion comprises housing 10, bent axle 20 and two pistons, and housing 10 is rotatably installed on the stationary part, and the spin axis of housing 10 is O1.Form cylinder barrel 11 in the housing 10, be provided with exhaust valve in housing 10 outer ends; Corresponding with exhaust valve, distribution driving mechanisms such as corresponding tappet, rocking arm also are set.Bent axle 20 comprises main journal and crank pin, and described main journal is rotatably installed on the stationary part; External gear also is set on the main journal, and housing 10 is provided with the gear ring that is meshed with this external gear; The axes O 2 and the above-mentioned spin axis O1 keeping parallelism of main journal, and have intended distance between the two, housing 10 is rotated around different axis with bent axle 20.Piston comprises piston body 31 and connecting rod 32, and connecting rod 32 1 ends link to each other with piston body 31, and the other end links to each other with the crank pin of bent axle 20.
The working principle of above-mentioned rotary engine is: in aspirating stroke, with respect to housing 10, when piston body 31 is mobile from the top down (is reference with Fig. 1), intake valve is opened, and fresh air enters in the cylinder barrel 11 by intake valve; In the compression stroke, piston body 31 moves from bottom to top, and intake valve and exhaust valve closing are with air compression; In power stroke, the fuel combustion work done, driven plunger body 31 moves down, and piston body 31 drives axes O 2 rotations of bent axle 20 around its main journal by connecting rod 32 again; In exhaust stroke, piston body 31 moves from bottom to top, and exhaust valve is opened, and waste gas after burning is discharged by exhaust valve.When bent axle 20 rotates under connecting rod 32 drives, rotate around spin axis O1 with predetermined speed by the external gear and the gear ring drive shell 10 of end; The rotational speed of housing 10 is lower than the rotational speed of bent axle 20, and makes between the rotational speed of bent axle 20 rotational speeies and housing 10 and have predetermined ratio.Because working procedure middle shell 10 keeps rotation, this motor is called rotary engine.
In the prior art, the two ends of connecting rod are hinged with piston body and bent axle respectively, and connecting rod plays important effect in the motor movement process.But connecting rod is to be connected with hinged seat by the swivel pin that is fixed on the piston body with piston body, because swivel pin and hinged seat are to be made of metal, so when internal engine temperature raises, self can expand swivel pin and hinged seat, and extrusion piston, so that piston body distortion, thereby influence cooperating of piston body and cylinder, so can work normally in order to make piston body and cylinder, piston body need be processed into ellipse, so that become the shape that matches with cylinder after the piston body distortion.Can solve the problem of distortion to a certain extent though be processed into ellipse in advance, but in actual applications, the shape of piston body after being subjected to the extruding of swivel pin and hinged seat, can be not fully and the shape of cylinder suitable, so the fiting effect of existing piston body and cylinder is relatively poor.
The model utility content
In view of this, first purpose of the present utility model is, a kind of piston is provided, to improve the matching relationship of piston and cylinder.
Providing on the basis of above-mentioned piston, second purpose of the present utility model is, a kind of rotary engine with above-mentioned piston is provided.
In order to realize above-mentioned first purpose, the piston that the utility model provides comprises piston body and connecting rod, and described piston body matches with the cylinder barrel of described rotary engine; Described connecting rod is fixedlyed connected with described piston body.
Optionally, in the piston of above-mentioned rotary engine, the lateral cross section of described piston body is a round structure, and described lateral cross section is and the vertical cross section of the reciprocating direction of described piston body.
Optionally, in the piston of above-mentioned rotary engine, described piston body has the skirt section of extending to described connecting rod first end towards the surface of described connecting rod first end.
Optionally, in the piston of above-mentioned rotary engine, described piston body outer circumferential face has twice piston ring groove at least.
Optionally, in the piston of above-mentioned rotary engine, described piston body end face is the plane.
Optionally, in the piston of above-mentioned rotary engine, described connecting rod first end section is greater than its second end section.
Optionally, in the piston of above-mentioned rotary engine, be provided with first oilhole in the described connecting rod, be provided with second oilhole in the described piston body, described first oilhole, one end opening is positioned at and connects on first end and the face that crankpin cooperates, the other end communicates with second oilhole, and described second oilhole has opening on the piston side face.
Optionally, in the piston of above-mentioned rotary engine, described connecting rod is fixed by welding and described piston body.
Optionally, in the piston of above-mentioned rotary engine, described connecting rod and described piston body are one-body molded.
In order to realize above-mentioned second purpose, the rotary engine that the utility model provides comprises stationary part and rotor portion, and described rotor portion comprises housing, crankshaft and piston, described housing comprises cylinder and the crankcase that links to each other with cylinder, forms cylinder barrel in the described cylinder; Described bent axle comprises main journal and crank pin; Described main journal and housing also are respectively arranged with external gear and gear ring, and described external gear is meshed with gear ring; The inlet air pathway and the exhaust passageway of the cylinder barrel that is communicated with housing are set on the described housing; Described housing is rotatably installed on the stationary part, and the main journal of described bent axle is rotatably installed on the stationary part, and described housing is with respect to the parallel axes of the main journal of the spin axis of stationary part and described bent axle.
Compared with prior art, the technological scheme that provides of the utility model embodiment has the following advantages and characteristics:
In the utility model, because that piston body and connecting rod do not need to be undertaken by hinging shaft and hinged seat is hinged, thus can avoid swivel pin and hinged seat to expand and the piston body problem on deformation of generation, thus the matching relationship between piston body and the cylinder barrel improved.
Description of drawings
Fig. 1 is the structure principle chart of the disclosed rotary engine of Swiss Patent document CH71501;
Fig. 2 is the structural representation of the rotary engine that provides of the utility model embodiment;
Fig. 3 is an A-A sectional view among Fig. 2;
Fig. 4 is in the rotary engine that provides of embodiment, the structural representation of rotor portion
Fig. 5 is a B-B sectional view among Fig. 4;
Fig. 6 is among Fig. 5, the shaft side figure of cylinder;
Fig. 7 is among Fig. 5, the sectional structure schematic representation of bent axle;
Fig. 8 is among Fig. 5, the shaft side figure of Piston and rod assembly;
Fig. 9 is that the utility model embodiment provides in the rotary engine, the explosive view of rotor portion;
Figure 10 is that the utility model embodiment provides in the rotary engine, the plan view of gas distribution plate.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.
For the convenience of describing, below when the overall structure to rotary engine is described, the piston of its rotor portion and rotary engine is described, the piston to its rotor portion and rotary engine is described no longer separately.
Please refer to Fig. 2 and Fig. 3, Fig. 2 is the structural representation of the rotary engine that provides of the utility model embodiment, and Fig. 3 is an A-A sectional view among Fig. 2.The rotary engine that embodiment provides comprises stationary part 100 and rotor portion 200, stationary part 100 and predetermined basic fixed, and rotor portion 200 can be with respect to stationary part 100 rotations.Below the structure of rotor portion 200 is described in detail.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is that the structural representation of rotor portion, Fig. 5 are B-B sectional views among Fig. 4 in the rotary engine that provides of the utility model embodiment.Rotor portion 200 comprises two cylinders 210, crankcase 220, bent axle 230 and two pistons 240.
In conjunction with Fig. 5, and with reference to figure 6, Fig. 6 is the shaft side figure of cylinder among Fig. 5.Form predetermined cylinder barrel in the cylinder 210.The sidewall of cylinder 210 is provided with exhaust passageway 211.As shown in Figure 5, have predetermined distance h between the top of the inner opening of this exhaust passageway 211 and cylinder barrel, the size of distance h can be according to suction pressure, and factors such as declared working condition and rated power are determined; In the optimized technical scheme, exhaust passageway 211 is a straight hole, the parallel axes of the main journal of its bearing of trend and aftermentioned bent axle 230.Also be provided with inlet hole 212 on cylinder 210 sidewalls, an opening 212a of inlet hole 212 is positioned on the inner wall of cylinder face, and another opening 212b is positioned on the end face of cylinder 210.
In conjunction with Fig. 5, and with reference to figure 7, Fig. 7 is the sectional structure schematic representation of bent axle among Fig. 5.In this example, bent axle 230 is an assembled crankshaft, comprise two main journals 231 and a crank pin 232, crank pin 232 two ends are installed in respectively on two cranks 233 of main journal 231, the parallel axes of the axis of main journal 231 and crank pin 232, and have corresponding distance between the two axial lines, promptly crank pin 232 has certain throw of eccentric.In the optimized technical scheme,, also be provided with equilibrium block in crank 233 symmetrical sides for guaranteeing the dynamic balancing of bent axle 230.In addition, on a main journal 231, also be provided with external gear 234.
Refer again to Fig. 8, Fig. 8 is the shaft side figure of Piston and rod assembly among Fig. 5.Two pistons 240 include piston body 241 and connecting rod 242; In this example, piston body 241 is fixedly linked with second end of connecting rod 242; And first end of two connecting rods 242 of two pistons 240 also is fixed together, and like this, two pistons 240 just form the Piston and rod assembly of rotary engine.The end that connecting rod 242 first ends of two pistons 240 are fixedly linked fastens mutually, forms a mounting hole that matches with crank pin 232.
In conjunction with Fig. 3 and Fig. 5, and with reference to figure 9, Fig. 9 is that the utility model embodiment provides in the rotary engine, the explosive view of rotor portion.
Crankcase 220 two ends link to each other with two cylinders 210, form the housing of rotor portion.By swivel assembly and 100 rotatable linking to each other of stationary part, its spin axis is O1 respectively in crankcase 220 both sides.In this example, crankcase 220 comprises crankcase body 221 and Flywheel disc 222, and crankcase body 221 and Flywheel disc 222 are fixedly linked by demountable structure.Gear ring 224 is set in Flywheel disc 222.
The piston body 241 of two pistons 240 matches with the cylinder barrel of two cylinders 210 respectively, forms the firing chamber between inner wall of cylinder and piston body 241 end faces; The mounting hole that Piston and rod assembly forms links to each other with the crank pin 232 of bent axle 230, and crank pin 232 can be rotated with respect to connecting rod 242 and Piston and rod assembly.Two main journals 231 of bent axle 230 respectively with 100 rotatable linking to each other of stationary part, the axis of main journal 231 is O2.Above-mentioned spin axis O1 and this axes O 2 are parallel and have a predetermined distance.
Corresponding with the inlet hole 212 on cylinder 210 sidewalls, crankcase 220 is provided with air inlet duct 223, and this air inlet duct 223 is corresponding with the opening 212b that is positioned on cylinder 210 end faces of inlet hole 212, and the two forms inlet air pathway; This inlet air pathway is communicated with space and the cylinder barrel in the crankcase 220.
The rotary engine that the utility model embodiment provides is identical with the driving principle of existing rotary engine, promptly by the fuel combustion work done, driven plunger 240 drives bent axle 230 rotations, makes between housing and the bent axle 230 with predetermined rotating ratio rotation by external gear between bent axle 230 and the housing 234 and gear ring 224.With the working principle of existing rotary engine inequality be: the rotary engine that the utility model embodiment provides is the motor of two stroke operation.During first stroke, finish air inlet and compression process, during second stroke, finish work done and exhaust process; This process can be identical with the working procedure of existing two stroke engine, gives unnecessary details in this difference.By relation and the port timing between exhaust passageway 211 inner openings and the inlet air pathway inner opening suitably is set, also can rotary engine be set to four stroke engine, to adapt to actual demand.
In this example, in entire work process, inlet air pathway communicates with space maintenance in the crankcase 220, and the break-make between inlet air pathway and the firing chamber, piston body 241 top side is determined according to the position of piston body 241.As shown in Figure 5, when upper piston body 241 moves on the opening 212a of the inlet hole relative with it 212, keep to isolate between inlet air pathway and the firing chamber, when upper piston body 241 moves under the opening 212a the topmost part of inlet hole 212, keep communicating between inlet air pathway and the firing chamber.Certainly, also can make the opening of inlet air pathway be positioned at cylinder 210 float chambers 220 outer surface correct positions; Inlet air pathway is not limited to be formed by inlet hole and air inlet duct, also can be other concrete structures, such as: the hole that is connected with space in the crankcase 220 can only be set in the sidewall of cylinder 210, or the like; Can also utilize the gas distribution controlling mechanism of existing common engine to control air inlet phase and period of intake.
In order to bring into play the high rotating speed advantage of rotary engine better, simplify the structure of distribution driving mechanism, control the exhaust phase place of rotary engine exactly, the utility model embodiment adopts another kind of gas distribution controlling mechanism.
Please refer to Figure 10, Figure 10 is that the utility model embodiment provides in the rotary engine, the plan view of gas distribution plate 110.Gas distribution plate 110 is a loop configuration, and card is provided with air distribution hole 111 predetermined angle, arc.As shown in Figure 3, gas distribution plate 110 is installed on the stationary part 100, and gas distribution plate 110 center lines overlap with the spin axis O1 of rotor portion 200.The outer opening of exhaust passageway 211 is corresponding with air distribution hole 111, promptly rotor portion 200 with respect to stationary part 100 rotary courses in, the outer opening of the exhaust passageway 211 on the cylinder 210 can communicate with the air distribution hole 111 of arc on the gas distribution plate 110 in predetermined angle, and exhaust passageway 211 is communicated with the outlet pipe of rotary engine.In the course of the work, can exhaust passageway 211 be communicated with in the given time with outlet pipe, adjust the exhaust phase place of this rotary engine by the air distribution hole 111 and stationary part 100 relative positions of adjusting gas distribution plate 110.Certainly, since between the firing chamber of the inner opening of exhaust passageway 211 and piston body 241 top sides break-make also be subjected to the influence of piston body 241 positions; Therefore, the exhaust phase place of adjusting rotary engine wants the position of comprehensive gas distribution plate 110 air distribution holes 111 and the position of piston 241 to determine.
In addition, control and adjustment rotary engine exhaust phase place can also utilize other modes such as existing electronic control, mechanism controls to control and adjust or/and air inlet phase is not limited to said structure.Certainly, the bearing of trend of exhaust passageway 211 is not limited to the parallel axes with described main journal, also can with the axis normal of described main journal, can also be according to the actual conditions setting, make it to extending, can also be set to the path of specified structure according to the actual conditions needs at other predetermined directions.
In this example, second end of connecting rod 242 is fixedlyed connected with piston body 241, does not need to be undertaken by hinging shaft and hinged seat hinged between piston body 241 and the connecting rod 242, and piston body 241 just can not be out of shape owing to swivel pin and hinged seat; And then do not need again the lateral cross section of piston body 240 is processed into ellipse, and can be processed into round structure; Herein, lateral cross section is and the vertical cross section of piston body 241 reciprocating directions; With respect to oval-shaped piston body, piston body 240 processing of round structure are simpler, the easier assurance of precision.In addition, get up to be more prone to, reduce manufacture cost, the piston body end face can be designed to the plane, and suitable formation firing chamber, space is set on cylinder 210 in order to make piston body 240 processing.
In the present embodiment, piston body 241 has the skirt section of extending to connecting rod 242 first ends towards the surface of connecting rod 242 first ends, can increase the area that cooperates between piston 240 and the cylinder barrel like this.Piston body 241 outer circumferential faces have twice piston ring groove at least; This piston ring groove can match with the piston ring that is fit to.In order to improve the degree of adaptability of piston body 241 and cylinder barrel, the spy is designed to connecting rod 242 first end sections greater than its second end section, and first oilhole is set in connecting rod 242, second oilhole is set in the piston body 241, first oilhole, one end opening is positioned at and connects on first end and the face that crankpin 232 cooperates, the other end communicates with second oilhole, and second oilhole has opening on piston 240 side faces.Owing to be provided with oil duct in the crankpin 232, lubricant oil enters first oilhole by this oil duct, arrive second oilhole by the passage between first oilhole and second oilhole again, arrive on the surface of contact of piston 240 and cylinder barrel, lubricated to guarantee between piston 240 and cylinder barrel, piston ring and the piston body 241.In the present embodiment, connecting rod 242 is fixing with piston body 241 by welding, also connecting rod 242 and piston body 241 can be designed to integrated structure; In addition, connecting rod 242 also can be fixing with piston body 241 by riveted joint, perhaps adopts screw thread and piston body 241 fixing.
In this example, make the connecting rod 242 first end relative fixed of two pistons 240.The benefit of this structure is, can further simplify the structure of rotary engine, improves the functional reliability of piston 240, the vibration that reduces to produce in the working procedure, and can make things convenient for the installation and debugging of rotary engine.
In order to bring into play the high-revolving advantage of rotary engine better, can also change the output speed of bent axle 230 by adjusting the velocity ratio between housing and the bent axle 230.In this example, the velocity ratio between housing and the bent axle 230 is 1: 2 o'clock, and promptly housing revolves and turns around, bent axle 230 rotation 2 circles, and simultaneously, the throw of eccentric that makes crank pin 232 is 1/4 to 1/2 of the stroke of piston 240 in cylinder barrel that link to each other with this crank pin; Distance between described stroke top dead center that is piston 240 in predetermined cylinder barrel and the lower dead center.Can also be according to actual conditions, make between housing and the bent axle 230 with velocity ratio between the gear ring 224 and have suitable rotating ratio by changing external gear 234, and make the throw of eccentric of crank pin 232 and the piston 240 that links to each other with crank pin 232 concerns with respect to having proper proportion between cylinder 210 strokes; By limited number of time experiment or analog computation, can obtain suitable velocity ratio and throw of eccentric; Wherein, the velocity ratio between housing and the bent axle 240 is big more, and throw of eccentric is big more, the throw of eccentric of preferred crank pin be corresponding piston 240 in cylinder barrel stroke 1/4 to 1/2.
Among the utility model embodiment, minimum range between the top of the inner opening of exhaust passageway 211 and cylinder barrel is less than the minimum range between the top of the inner opening of inlet air pathway and cylinder barrel, promptly with respect to the inner opening of inlet air pathway, the position of the inner opening of exhaust passageway 211 more is close to the top dead center of piston body 241.Move down at piston 240, when exhaust phase began, the firing chamber at first communicated with exhaust passageway 211, and High Temperature High Pressure gas is discharged by exhaust passageway 211; Continue to move down at piston 240, when the firing chamber communicated with inlet air pathway, high temperature and high pressure gas pressure reduced.Can avoid so not only that high temperature and high pressure gas enters in the gas-entered passageway by inlet air pathway in the firing chamber, and then can avoid lighting the inflammable gas in the gas-entered passageway, can also facilitate for inflammable gas enters the firing chamber.
Simultaneously, because the gas distribution plate 110 that adopts, can be by the state of gas distribution plate 110 control exhaust passageways 211.Like this, after work done was finished, piston body 241 moved to lower dead center from top dead center, and (is reference with Fig. 5 middle and upper part piston) in the moment that the moment that exhaust is begun begins early than air inlet, carries out exhaust when promptly moving down with respect to cylinder 210.Adhere to piston body 241 and continue to move down, inlet air pathway and exhaust passageway all communicate with the firing chamber of piston body 241 top sides, and can realize gas exchange process this moment; In the gas exchange process, piston body 241 reversing motions.After gas exchange process continues the scheduled time, can disconnect exhaust passageway 211 by gas distribution plate 110 and be communicated with outlet pipe, exhaust passageway 211 is disconnected, air inlet is proceeded, and ventilation finishes.Piston body 241 is to the top dead center motion, and after piston body 241 was with inlet air pathway and combustion chamber isolated, air inlet finished.Like this, guaranteeing to drain under the prerequisite of burning indoor exhaust air, in an operation cycle, just can make the finish time of the finish time of gas outflow in the cylinder barrel early than the gas inflow, even the exhaust concluding time of this cylinder 210, reduces the amount that fresh air flows out early than the air inlet concluding time, increase the fresh air amount of charging into, improve the effective admission amount of rotary engine, provide prerequisite for improving rotating speed and power.
In addition,, also be provided with supercharging device in the rotary engine that the utility model provides, to increase the suction pressure of inlet air pathway for air inflow and the power that further improves rotary engine; This supercharging device is arranged in the gas-entered passageway of rotary engine, and gas-entered passageway communicates with space in the crankcase 220.Can improve the air inflow of rotary engine like this, improve the power of this motor.Gas-entered passageway can be arranged in the stationary part 100, and can between stationary part 100 and crankcase 220 rotating sealing device be set, and communicates with the smooth and easy of space in the crankcase 220 to guarantee gas-entered passageway.
Through the combination of above-mentioned technological means, the output speed of the rotary engine that the utility model embodiment provides can significantly improve, and its bent axle 230 rotating speeds can reach 15000 rev/mins.In addition, in order to make full use of rotatablely moving of rotary engine rotor portion 200, among the utility model embodiment, be provided with outward extending radiating fin in described housing outer wall; Like this, when the housing of rotor portion 200 rotates with respect to stationary part 100, will make air mobile,, improve the radiating effect of housing for the heat exchange between air and the housing facilitates with respect to air movement with respect to radiating fin.Air-cooledly compare with existing with water-cooling pattern, the rotary engine that the utility model embodiment provides only is provided with corresponding radiating fin just can realize the purpose of dispelling the heat, not only can simplify the structure of rotary engine greatly, can also reduce the operating cost of rotary engine, improve operational reliability.Further, in order to increase the area of contact between housing and the air, increase the rigidity of cylinder, improve the load capacity of cylinder interior minute surface, can also make described radiating fin is platy structure, makes the axis normal of the main journal of its extended planar and described bent axle, promptly when rotary engine turns round, make air better by the space between the radiating fin, reduce the rotational resistance of rotor portion.
The above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications; such as, can make rotary engine comprise more a plurality of (to) cylinder 210 and a plurality of (to) piston 240, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. the piston of a rotary engine comprises piston body and connecting rod, and described piston body matches with the cylinder barrel of described rotary engine; Described connecting rod is fixedlyed connected with described piston body.
2. according to the piston of the described rotary engine of claim 1, it is characterized in that the lateral cross section of described piston body is a round structure, described lateral cross section is and the vertical cross section of the reciprocating direction of described piston body.
3. according to the piston of the described rotary engine of claim 2, it is characterized in that described piston body has the skirt section of extending to described connecting rod first end towards the surface of described connecting rod first end.
4. according to the piston of the described rotary engine of claim 3, it is characterized in that described piston body outer circumferential face has twice piston ring groove at least.
5. according to the piston of the described rotary engine of claim 4, it is characterized in that described piston body end face is the plane.
6. according to the piston of each described rotary engine of claim 1-5, it is characterized in that described connecting rod first end section is greater than its second end section.
7. according to the piston of the described rotary engine of claim 6, it is characterized in that, be provided with first oilhole in the described connecting rod, be provided with second oilhole in the described piston body, described first oilhole, one end opening is positioned at and connects on first end and the face that crankpin cooperates, the other end communicates with second oilhole, and described second oilhole has opening on the piston side face.
8. according to the piston of the described rotary engine of claim 1, it is characterized in that described connecting rod is fixed by welding and described piston body.
9. according to the piston of the described rotary engine of claim 1, it is characterized in that described connecting rod and described piston body are one-body molded.
10. a rotary engine comprises stationary part and rotor portion, and described rotor portion comprises housing, crankshaft and piston, and described housing comprises cylinder and the crankcase that links to each other with cylinder, forms cylinder barrel in the described cylinder; Described bent axle comprises main journal and crank pin; Described main journal and housing also are respectively arranged with external gear and gear ring, and described external gear is meshed with gear ring; The inlet air pathway and the exhaust passageway of the cylinder barrel that is communicated with housing are set on the described housing; Described housing is rotatably installed on the stationary part, and the main journal of described bent axle is rotatably installed on the stationary part, and described housing is with respect to the parallel axes of the main journal of the spin axis of stationary part and described bent axle; It is characterized in that described piston is the piston of each described rotary engine of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205536741U CN201802481U (en) | 2010-10-09 | 2010-10-09 | Rotor engine and piston thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205536741U CN201802481U (en) | 2010-10-09 | 2010-10-09 | Rotor engine and piston thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802481U true CN201802481U (en) | 2011-04-20 |
Family
ID=43871983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205536741U Expired - Fee Related CN201802481U (en) | 2010-10-09 | 2010-10-09 | Rotor engine and piston thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802481U (en) |
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2010
- 2010-10-09 CN CN2010205536741U patent/CN201802481U/en not_active Expired - Fee Related
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 441004 Nissan Industrial Park, hi tech Industrial Development Zone, Hubei, Xiangfan Patentee after: The new torch Science and Technology Ltd. in Hubei Address before: 441004 Nissan Industrial Park, hi tech Industrial Development Zone, Hubei, Xiangfan Patentee before: Hubei New Torch Science & Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20161009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |