CN103939203A - Rotating piston type internal combustion engine - Google Patents
Rotating piston type internal combustion engine Download PDFInfo
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- CN103939203A CN103939203A CN201310024235.XA CN201310024235A CN103939203A CN 103939203 A CN103939203 A CN 103939203A CN 201310024235 A CN201310024235 A CN 201310024235A CN 103939203 A CN103939203 A CN 103939203A
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- combustion engine
- internal combustion
- type internal
- piston
- piston type
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Abstract
The invention discloses a rotating piston type internal combustion engine which comprises a rotating type piston arranged in a cylinder of the engine. A gas guiding channel is arranged in the piston. A sealing mechanism is arranged on the cylinder body, or the sealing mechanism is arranged in the piston. An air guiding channel is arranged on the cylinder body. The air guiding channel is provided with at least one pair of supporting face structures for supporting the sealing mechanism. The rotating piston type internal combustion engine has the advantages that the air guiding device is of a bending structure, cracks generated due to the temperature difference gradient are avoided, the supporting face structures and the air guiding channel are connected in a smooth-transition mode, and accordingly air flowing is smooth.
Description
Technical field
The present invention relates to internal-combustion engine, be specifically related to a kind of rotary piston type internal combustion engine.
Background technique
The piston profile of circular rotating reciprocating engine is epitrochoid shape.It has the peach point structure of even number projection, and bias is assemblied in engine cylinder-body.Cylinder body has odd number projection peach point structure.The envelope surface that its outer surface is formed by piston rotation determines.The in the situation that of in air flue is arranged in piston, overlapping angle can be very large.Therefore, this motor can design gas port narrow as far as possible conventionally.But in order to reach enough large gas port sectional area, gas port conventionally can be with respect to the sense of rotation lateral arrangement of piston.Certainly, layout may have a risk like this, that is: when the gas port on piston rotates, and while slipping over the diaphragm seal being arranged on cylinder body, diaphragm seal meeting bending deflection, diaphragm seal is therefore fracture likely.
In two stroke engine, piston ring can complete inswept relief opening.Relief opening temperature is often higher, and piston ring can produce larger temperature gradient, therefore has the risk cracking.
Chinese patent CN2934596Y discloses a kind of rotary piston engine, comprise the circle tube cylinder of the closed at both ends that is provided with suction port, relief opening and spark plug, the center of cylinder body is provided with rotating shaft, in rotating shaft, be installed with main piston, have by hinge and be movably arranged on the sub-piston on main shaft at the rear side of main piston, between main piston and sub-piston, be connected with spring, in cylinder body inner side, detent mechanism be installed.Sealing configuration for rotary-piston does not improve, and diaphragm seal is flexible distortion also.
Chinese patent CN101230788A discloses a kind of gas-tight sealing system of rotaty of rotary piston engine, comprise that the two ends that are arranged on cylinder body put in the apex seal in end cap groove, on end cap, there is groove, be arranged on the link block in the groove on end cap, groove plug, in the groove of end cap, is with reeded slide block, although obtained good sealing effect, but in piston rotary course, diaphragm seal or easy bending deflection are even ruptured.
Summary of the invention
The problems referred to above that exist for existing rotary piston type internal combustion engine, the invention provides a kind of rotary piston type internal combustion engine that can effectively prevent diaphragm seal fracture.
The technological scheme that the present invention adopted is for achieving the above object:
A kind of rotary piston type internal combustion engine, comprises the revolving piston in the cylinder body of being located at motor; In described piston, arrange air guide channel, on described cylinder body, arrange sealing mechanism; Or in described piston, arrange described sealing mechanism, on described cylinder body, arrange described air guide channel; Described air guide channel is at least provided with a pair of owing to supporting the supporting surface structure of described sealing mechanism.
Above-mentioned rotary piston type internal combustion engine, wherein, described air guide channel is the horizontal extended type structure with respect to described piston movement direction.
Above-mentioned rotary piston type internal combustion engine, wherein, described air guide channel at least comprises a pair of with the identical longitudinal border of described piston movement direction, each described border is at least to longitudinally drawing a described supporting surface structure.
Above-mentioned rotary piston type internal combustion engine, wherein, the elongated portion of every pair of described supporting surface structure is laterally forming certain overlap region.
Above-mentioned rotary piston type internal combustion engine, wherein, is provided with the transition region that realizes gas rounding off between described supporting surface structure and gas channel.
Above-mentioned rotary piston type internal combustion engine, wherein, described supporting surface structure is parallel to each other, and the direction of being extended by described border is identical.
Above-mentioned rotary piston type internal combustion engine, wherein, the curved shape structure that described transition region is described air guide channel.
Owing to having adopted above-mentioned technology, the good effect that technique scheme compared with prior art has is:
Air guide channel adopts bending structure, has avoided being cracked by temperature gradient; Supporting surface structure is connected by round and smooth transition with air guide, makes air current flow more smooth and easy.
Brief description of the drawings
Fig. 1 is air guide channel first embodiment's of a kind of rotary piston type internal combustion engine of the present invention partial sectional view;
Fig. 2 is air guide channel second embodiment's of a kind of rotary piston type internal combustion engine of the present invention partial sectional view;
Fig. 3 is the first embodiment's of a kind of rotary piston type internal combustion engine of the present invention cross sectional view;
Fig. 4 is the sectional view of IV-IV part in Fig. 3;
Fig. 5 is the second embodiment's of a kind of rotary piston type internal combustion engine of the present invention cross sectional view;
Fig. 6 is the sectional view of VI-VI part in Fig. 5;
Fig. 7 is the sectional view of VII-VII part in Fig. 6.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
The air guide channel 3 of a kind of rotary piston type internal combustion engine of the present invention as illustrated in fig. 1 and 2, air guide channel 3 is arranged in piston 12 or on cylinder body 11, on cylinder body 11, be furnished with sealing mechanism 17, air guide channel 3 is at least provided with a pair of owing to supporting the supporting surface structure 4 of sealing mechanism 17, air guide channel 3 is the horizontal extended type structure with respect to piston 12 moving direction (as shown in arrow 1), the elongated portion of every pair of supporting surface structure 4 is laterally forming certain overlap region 6, thereby allow sealing mechanism 17 have all the time supporting surface to support, between supporting surface structure 4 and gas channel, be provided with the transition region that realizes gas rounding off, transition region is the curved shape structure of air guide channel 3.
First embodiment (rotary engine) of a kind of rotary piston type internal combustion engine of the present invention as shown in Figures 3 and 4, the interior bias of cylinder body 11 is equipped with a leg-of-mutton revolving piston 12, in the relative movement process of piston 12 and cylinder body 11, peach point structure and cylinder body 11 slip joint of piston 12.Except this structure, also have the form of other rotary piston engine, for example Ka formula motor, in Ka formula motor, diaphragm seal is assemblied on cylinder body 11, and these are different from the form that rotary engine realizes sealing by piston seal film.
Further, cylinder body 11 connects gas-entered passageway 13 and exhaust passage 14, is provided with nozzle 15 and spark plug 16 in cylinder body, and three angles of piston 12 are all provided with sealing mechanism 17, and spring mechanism 19 is housed in sealing mechanism 17.In the time that piston 12 moves, sealing mechanism 17 just, under the effect of spring force, is close to cylinder body 11 to realize sealing.
Further, the length of sealing mechanism 17 covers the length range of whole piston 12.When sealing mechanism 17 slips over the import of gas-entered passageway 13 and the outlet of exhaust passage 14, designed by the extended type of air guide channel 3, sealing mechanism 17 only just contacts with cylinder body 11 in region, non-pneumatic passway, and most of length range is discontiguous.
As described in Fig. 5-7, invent a kind of the second embodiment of rotary piston type internal combustion engine, comprise the second cylinder body 20 and second piston 21 of rotary piston type internal combustion engine, the second piston 21 rotatablely move form envelope surface be epitrochoid shape, in this embodiment, the second piston 21 comprises four projective structures 25, and the second cylinder body 20 inwalls of correspondence have five sunk structures 22 with it, the envelope curver outer surface forming with the second piston 21 motions is identical.When the second piston 21 is in the time that running shaft 30 does eccentric rotary, the second piston 21 and the second cylinder body 20 have just formed five working spaces 22.Each working space 22 is corresponding with combustion space 23 separately, and there is second spark plug 24 each combustion space simultaneously.
Further, in order to allow the separate sealing of each working space 22, in the second cylinder body, install the second sealing mechanism 26, the second sealing mechanisms 26 and contact sealing with the second piston 21 all the time under the effect of the second spring mechanism 37 at the horn structure place of 20 inwalls conventionally.
Further, when the supply of inflammable mixture and discharge, complete by suction port 27 and relief opening 32, suction port 27 and relief opening 32 are arranged on the second piston 21 outer fringe surfaces.Suction port 27 and relief opening 32 are connected with the second gas-entered passageway 28 and the second exhaust passage 33 respectively.The second gas-entered passageway 28 is communicated with annular space 29, air inlet is provided to working space 22, and annular space 29 is arranged in the inside of the second piston 21.This annular space 29 communicates with air feeding in center cylinder 31 simultaneously.Four projective structures 25 of the second piston 21, wherein, two have air inlet fluting 27, and from the sense of rotation (as shown in arrow 40) of the second piston 21, air inlet fluting 27 is the side above in projective structure 25 all the time.Meanwhile, 34 sides below at this projective structure 25 of another exhaust fluting.The second cylinder body 20 comprises curb girder 35, and curb girder 35 can be bolted on the second cylinder body 20.
Further, the second gas-entered passageway 28 and the second exhaust passage 33 are all designed with the second supporting surface structure 5, in the time that the second sealing mechanism 26 slips over suction port 27 and relief opening 32, have at least a pair of supporting surface to support the second sealing mechanism 26, the second sealing mechanisms 26 and just can not rupture because of bending deflection.
The foregoing is only preferred embodiment of the present invention, not thereby limit claim of the present invention, so the equivalent structure that all utilizations specification of the present invention and diagramatic content are made changes, be all included in protection scope of the present invention.
Claims (7)
1. a rotary piston type internal combustion engine, is characterized in that, comprises the revolving piston in the cylinder body of being located at motor; In described piston, arrange air guide channel, on described cylinder body, arrange sealing mechanism; Or in described piston, arrange described sealing mechanism, on described cylinder body, arrange described air guide channel; Described air guide channel is at least provided with a pair of owing to supporting the supporting surface structure of described sealing mechanism.
2. rotary piston type internal combustion engine as claimed in claim 1, is characterized in that, described air guide channel is the horizontal extended type structure with respect to described piston movement direction.
3. rotary piston type internal combustion engine as claimed in claim 1, is characterized in that, described air guide channel at least comprises a pair of with the identical longitudinal border of described piston movement direction, and each described border is at least to longitudinally drawing a described supporting surface structure.
4. rotary piston type internal combustion engine as claimed in claim 1, is characterized in that, the elongated portion of every pair of described supporting surface structure is laterally forming certain overlap region.
5. rotary piston type internal combustion engine as claimed in claim 1, is characterized in that, between described supporting surface structure and gas channel, is provided with the transition region that realizes gas rounding off.
6. rotary piston type internal combustion engine as claimed in claim 3, is characterized in that, described supporting surface structure is parallel to each other, and the direction of being extended by described border is identical.
7. rotary piston type internal combustion engine as claimed in claim 5, is characterized in that the curved shape structure that described transition region is described air guide channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310024235.XA CN103939203A (en) | 2013-01-22 | 2013-01-22 | Rotating piston type internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310024235.XA CN103939203A (en) | 2013-01-22 | 2013-01-22 | Rotating piston type internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103939203A true CN103939203A (en) | 2014-07-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310024235.XA Pending CN103939203A (en) | 2013-01-22 | 2013-01-22 | Rotating piston type internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103939203A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901338A (en) * | 2021-03-12 | 2021-06-04 | 北京工业大学 | Radial sealing piece with gradually-expanded diffusion tubular cut |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3299862A (en) * | 1963-08-09 | 1967-01-24 | Renault | Lobed rotors of rotary engines |
| GB1102027A (en) * | 1964-04-04 | 1968-02-07 | Renault | Improvements in pistons for rotary-piston internal combustion engines |
| US3872838A (en) * | 1970-11-30 | 1975-03-25 | Volkswagenwerk Ag | Combustion engine having a rotary type piston arrangement |
-
2013
- 2013-01-22 CN CN201310024235.XA patent/CN103939203A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3299862A (en) * | 1963-08-09 | 1967-01-24 | Renault | Lobed rotors of rotary engines |
| GB1102027A (en) * | 1964-04-04 | 1968-02-07 | Renault | Improvements in pistons for rotary-piston internal combustion engines |
| US3872838A (en) * | 1970-11-30 | 1975-03-25 | Volkswagenwerk Ag | Combustion engine having a rotary type piston arrangement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901338A (en) * | 2021-03-12 | 2021-06-04 | 北京工业大学 | Radial sealing piece with gradually-expanded diffusion tubular cut |
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Application publication date: 20140723 |