CN201047306Y - Rotor internal-combustion engines - Google Patents
Rotor internal-combustion engines Download PDFInfo
- Publication number
- CN201047306Y CN201047306Y CNU2007200702230U CN200720070223U CN201047306Y CN 201047306 Y CN201047306 Y CN 201047306Y CN U2007200702230 U CNU2007200702230 U CN U2007200702230U CN 200720070223 U CN200720070223 U CN 200720070223U CN 201047306 Y CN201047306 Y CN 201047306Y
- Authority
- CN
- China
- Prior art keywords
- cylinder
- rotor
- outside cylinder
- inlet
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a rotor internal combustion engine, comprising an outer cylinder, a cylinder end cover, a main shaft, a crank, a connecting rod, a piston, an ignition device, a rotor arranged in the outer cylinder, a fixed gear fixed on a cylinder body, a center gear fixed on the main shaft and a planet gear which is respectively engaged with the fixed gear and the center gear and is connected with a planet gear shaft fixed on the end surface of the rotor. The gear ratio of the three gears is 3:1:1, and when the rotor rotates a round, the cylinder finishes one working cycle. The utility model has the advantages of simple structure, convenient repairing, improving the power efficiency and the gas combustion efficiency, thereby bringing good economic benefit, saving energy and being beneficial to environmental protection.
Description
Technical field
The utility model relates to a kind of internal-combustion engine, relates in particular to a kind of internal-combustion engine of rotator type.
Background technique
In the world today, the used motor of various power equipments is internal-combustion piston engine mostly, is to promote the cylinder piston to-and-fro motion by the fuel combustion in the cylinder, and the bent axle of this to-and-fro motion by linkage mechanism becomes and rotatablely move, thus outputting power.Because the suction stroke and the expansion space stroke of this structure piston are symmetry equivalent, compression ratio equals expansion ratio, exists when gaseous-pressure is still big, promptly enter the shortcoming of exhaust stroke, make that the combustion gas expansion space stroke is too short, period of combustion is insufficient, so power loss is very big.And the distribution device of conventional engines comprises valve group and valve transmission group, and the valve group comprises parts such as valve, valve guide bushing, valve seat, spring seat, valve spring, locking plate again; The valve transmission group comprises rocking arm, pitman arm shaft, push rod, tappet, camshaft and timing gear again.Whole air distribution structure complexity is in the high-speed friction state for a long time, and operating accuracy requires high, and rate of fault is also high.In this case, the output capability of motor and distribution device bear the high speed operation load carrying capacity has confidential relation with its life-span.
Twentieth century 60, the seventies, the rotary engine of succeeding in developing is the gear rotation though thoroughly changed crankshaft rotating, has improved moment of torsion and power; But triangle piston also rotates, and route complexity between each surface of contact of cylinder block, so the hermetic seal technical requirements height of triangle piston, manufacture difficulty is big.So far it is unhappy to promote development decades, still based on reciprocal crank-axle engine.
Patent 01134215.3 discloses a kind of two rotors of placing of reporting to the leadship after accomplishing a task mutually and made rotor internal-combustion engine (as shown in Figure 1) with the concentric rotation of rotating shaft in an outer container.The rotating speed of each rotor is by the cam/roller mechanism control of a uniqueness.The profile line form of cam has been determined the characteristics of motion of rotor.Each rotor has four blades, thereby forms eight cylinders.Two suction ports that are provided with on the outer container, two air outlets and the setting of two igniter plugs (for spark ignition engines) radial symmetric, the moving circle of rotating shaft revolution, each cylinder will be finished two complete engine cycles, thereby motor is finished 16 circulations altogether.Intake process, compression process, burning/inflation process and exhaust process are to carry out simultaneously in two radially opposite cylinders, thus motor in the course of the work except effective output torque that the combustion gas countershaft produces other power and moment all constitute approximate self balancing.In addition, propose a cover technological scheme and solved sealing, lubricated and cooling problem, also adopted miller cycle and changeable compression ratio technique to improve the thermal efficiency.There is complex structure in this rotary engine, and requirement on machining accuracy is very high, ineffective shortcoming.
Summary of the invention
The purpose of this utility model provides a kind of rotor internal-combustion engine, adopted brand-new project organization, the part of its part and available engine still has very high versatility, rotation by rotor realizes automatic air inlet of cylinder and exhaust, simplify it and advanced air distribution structure, the reliability of work and the verticity of internal-combustion engine have been improved, also simplified cooling system structure simultaneously, and introduced the structure of different capacitance, increase power done time, reached the purpose of fuel-efficient, noise reduction and low emission.
Design concept of the present utility model is as follows:
This rotor internal-combustion engine comprises a cylindrical shape outside cylinder and rotate freely and keep the cylindrical rotor in minimum gap in outside cylinder.On peritrochanteric, be distributed with cylinder and piston, can hold bent axle and connecting rod at the hollow circle of rotor, and crankshaft bearing bush and bearing liner.Cylinder side is provided with guiding distribution internal gear outside, rotor planetary pinion in order to distribution can be installed on rotor one end, fixed main shaft gas wiring gear initiatively then on main shaft, it is central gear, the outside cylinder wall is provided with spark plug (oil nozzle), inlet hole, exhaust port, finishes the distribution of cylinder by the rotation of rotor.
The purpose of this utility model is achieved in that
A kind of rotor internal-combustion engine, comprise outside cylinder, cylinder end piece, main shaft, bent axle, the one connecting rod, piston, ignition mechanism, also comprise outside cylinder, be cylindrical tube, have on it inlet hole with inlet hole become at least 90 the degree phase differences exhaust port, described inlet and outlet hole also is extended with the inlet and outlet groove along the inwall of outside cylinder;
One rotor, be positioned at outside cylinder, almost being the zero clearance with the outside cylinder inwall relatively rotates, it is cylindrical body, the centre has a through hole, and an end of main shaft, crankshaft-and-connecting-rod is arranged in this through hole, radially has at least one inside cylinder on the wall of rotor, the other end of piston and connecting rod is located in the inside cylinder, and the quantity of described bent axle, connecting rod, piston, ignition mechanism is corresponding with the quantity of inside cylinder;
One fixed gear is fixed on the cylinder block;
One central gear is fixed on the main shaft;
One planet gear respectively with the engagement of fixed gear and central gear, and is connected with planet pin on being fixed on rotor end-face, and the velocity ratio of three gears is 3: 1: 1;
Rotor rotates a circle, and each cylinder is finished a work cycle.
Preferably, have two cylinders on the described rotor, become 180 degree phase differences to arrange, described inlet and outlet hole be the bar hole on axial along the outside cylinder wall, and the axial distribution length of length and cylinder is suitable.
Preferably, have four cylinders on the described rotor, become 90 degree phase differences to arrange, described inlet and outlet hole be the bar hole on axial along the outside cylinder wall, and the axial distribution length of length and cylinder is suitable.
Preferably, also comprise a gas holder, gas holder is communicated with the compression stroke casing wall and the intake stroke casing wall of outside cylinder respectively.
Preferably, be provided with a cooling wheel in described outside cylinder one end cap, be fixed on rotor or the main shaft, the nearly main spindle's of cylinder end piece has cooling medium inlet, has the cooling medium outlet on the outside cylinder.
Preferably, respectively have one watt of shape macropore in the position of inlet and outlet hole and inlet and outlet groove on the outside cylinder circumferential surface, respectively be covered with a watt shape cover that has an aperture on it, the aperture periphery is provided with in order to suction tude, the screw hole that outlet pipe is fastenedly connected.
Running major character of the present utility model is: piston promotes connecting rod and drives the bent axle rotation, bent axle initiatively gas wiring gear rotates thereupon, gear transmission drives the rotor planetary pinion, planetary pinion and the interlock of outside cylinder guiding internal tooth, external gear is fixed on the cylindrical cylinder motionless, rotates so planetary pinion drives rotor cylinder itself when rotating.Because gear ratio is 1: 1: 3, bent axle rotates 1 week of rotor rotation then in 3 weeks, when piston to-and-fro motion in cylinder promotes bent axle and rotates like this, self also rotation (3: 1) simultaneously finish the distribution stroke.
The utility model makes it compared with prior art owing to adopted above-mentioned technological scheme, has following advantage and good effect:
1. avoided the defective that distribution device exists in the prior art.Owing to do not have complicated distribution device and intake and exhaust valve, the substitute is three gas wiring gears, reduced the friction and the inertial resistance of distribution device in the prior art, intake and exhaust resistance is diminished, make gasoline combustion efficient higher, its high speed performance has also improved.
2. simple in structure, easy to maintenance.The body of motor only is the rotor of a cylindrical cylinder and drum shape, and the inlet and outlet valve only is two apertures, and is simple in structure, keeps in repair also convenient.
3. has very high versatility with the conventional engines component.Cylinder sleeve of the present utility model, piston, crank-connecting rod etc. are all identical with conventional engines.
4. simplified cooling system.
5. introduce difference and hold structure, improved work doing efficiency, thereby brought good economic benefits, and energy saving, reduced noise pollution, help environmental protection.
Description of drawings
Fig. 1 is embodiment's schematic representation of prior art;
Fig. 2 is an overall structure sectional drawing of the present utility model;
Fig. 3 is the right elevation of Fig. 2;
Fig. 4 is main shaft of the present utility model, bent axle, connecting rod and piston assembling schematic representation;
Fig. 5 has the schematic representation that difference is held an embodiment of structure for the utility model;
Fig. 6 is an intake stroke of the present utility model initial position schematic representation;
Fig. 7 is a compression stroke of the present utility model initial position schematic representation;
Fig. 8 is an expansion space stroke of the present utility model initial position schematic representation;
Fig. 9 is an exhaust stroke of the present utility model initial position schematic representation;
Figure 10 is an outside cylinder intake and exhaust escutcheon schematic representation of the present utility model.
Embodiment
As Fig. 2,3, shown in 4, one outside cylinder 1, cylindrical, have on it inlet hole 9 with inlet hole become at least 90 the degree phase differences an exhaust port 8, the phase difference that present embodiment is selected for use is 90 degree, inlet hole 9 and exhaust port 8 are that the axial distribution length of length and cylinder is suitable along the bar hole of outside cylinder wall on axially, and port 8 and 9 length must cover the width of the axially-aligned of all cylinders fully.Simultaneously referring to Fig. 5 and Fig. 6, inlet hole 9 initial position along the circumferential direction is positioned at the distance that departs from cylinder radius 6 o'clock clockwise, to be cylinder begin rotation from 6 o ' clock positions then begins air inlet, exhaust port 8 initial position along the circumferential direction is positioned at the distance that departs from cylinder radius 3 o'clock clockwise, and promptly cylinder begins rotation from 3 o ' clock positions and then begins exhaust.Inlet hole 9 and exhaust port 8 also are extended with an air inlet groove 9 ' and an exhaust groove 8 ' respectively along the inwall circumferencial direction of outside cylinder, be used for cylinder and can also continue air inlet in the process of rotation, air inlet groove 9 ' end position along the circumferential direction is positioned at the distance that departs from cylinder radius 9 o'clock counterclockwise, be that cylinder rotates to the then air inlet end of 9 o ' clock positions, exhaust groove 8 ' end position along the circumferential direction is positioned at the distance that departs from cylinder radius 6 o'clock counterclockwise, and promptly cylinder rotates to the then exhaust end of 6 o ' clock positions.
Among another embodiment of the present utility model, as shown in figure 11, also one watt of shape macropore can be left in the position at inlet hole 9, air inlet groove 9 ' place on outside cylinder 1, be covered with a watt shape cover 112 that has aperture 111 thereon, the aperture periphery is provided with in order to suction tude, the screw hole 114 that outlet pipe is fastenedly connected solves the problem of processing gas inlet groove with this, equally also can realize air inlet.Exhaust port 8 and exhaust groove 8 ' also can be by such structural designs, and watt shape cover 112 can be fixing with outside cylinder 1 by four screws 113, and cylinder is air-breathing or exhaust from aperture 111.
As shown in Figure 2, on outside cylinder 1, also be provided with an igniting device and a fuel injection apparatus 7, be positioned at the position at 12 o'clock, the actual design position of this device can adjust in the diameter range of inside cylinder, as electronic spark advance or lag, its quantity is corresponding with the quantity and the position of cylinder with axial position.In internal-combustion engine, ignition mechanism and fuel injection apparatus 7 designs are on a bus.
Be respectively equipped with end cap 2 in the both sides of outside cylinder 1, rounded, its diameter is identical with the diameter of outside cylinder 1 outer wall.Have through hole 21 at the center of end cap 2, its diameter is corresponding with main shaft 3, and main shaft 3 can stretch into through hole 21, and the centre is lined with bearing.End cap 2 adopts bolted mode and 1 liang of wall of outside cylinder to fix.Be provided with a cooling wheel 22 in the outside cylinder end cap 2, be fixed on rotor 10 or the main shaft 3, in the present embodiment, cooling wheel 22 is fixed on the rotor 10, with the rotation of rotor 10, thereby produce centrifugal force cooling medium is flowed, and plays cooling action.Cylinder end piece 2 nearly main shafts 3 positions have cooling medium inlet 23, have cooling medium outlet 24 on the outside cylinder 1.Cooling medium can water, oil or air.The wall of outside cylinder 1 close right side end cap 2 is provided with a lubricant oil oil hole 25 and is 180 with lubricant oil oil hole 25 spends a lubricant oil draining hole 26 of phase differences.
As Fig. 2, shown in 3, rotor 10 is cylindrical body, is positioned in the outside cylinder 1, and the diameter of rotor 10 outer walls and the inner diameter of outside cylinder 1 almost are zero clearance (minimum gap) with the inwall of outside cylinder 1 and relatively rotate much at one.The centre of rotor 10 has a through hole, and an end of main shaft 3, bent axle 4 and connecting rod 5 is contained in this through hole, and in the present embodiment, the right side inwall of outside cylinder 1 is fixed with a fixed gear 14, and there is not relative displacement in both.Have a through hole 121 in the right side of rotor 10, the gear shaft of planetary pinion 12 vertically stretches into wherein, and is fixing with rotor 10.Also can adopt other means of fixation.Planetary pinion 12 and fixed gear 14 and a central gear 13 engagements, the velocity ratio of three gears is 1: 3: 1, when rotor 10 rotates, also the center round self moves in a circle.Radially have at least one inside cylinder 11 on the wall of rotor 10, the other end of piston 6 and connecting rod 5 is located in the inside cylinder 11, and the quantity of inside cylinder 11 is corresponding with the quantity and the position of bent axle 4, connecting rod 5, piston 6, ignition mechanism 7 with the position.In the present embodiment, the wall of rotor 10 is provided with four inside cylinders, is cross distribution, and promptly 90 degree phase differences are arranged, if quantity more than four inside cylinders, the inside cylinder that then has more can repeat any one in above four phase places.Also can open two inside cylinders on the rotor 10, become 180 degree phase differences to arrange.Rotor 10 rotates a circle, and each cylinder is finished a work cycle.The left end face of rotor 10 is provided with a bearing support 27, is provided with a bearing 28 between main shaft 3 and the bearing support 27, is used for supporting rotor 10.Right side inner chamber between rotor 10 and the main shaft 3 also is provided with a bearing support 29, is provided with a bearing 31 between main shaft 3 and the bearing support 29, is used for supporting rotor 10 equally, has an aperture in this bearing support 29, and lubricant oil is flowed into.
Working procedure of the present utility model is as follows:
As shown in Figure 6, cylinder and piston 6 are positioned at intake stroke and begin the place, i.e. 6 o ' clock positions, volume of cylinder minimum at this moment.Intake stroke begins, and main shaft 3 rotates, and bent axle 4 drives piston 6 by connecting rod 5 and moves to axis direction, and volume of cylinder increases, and the gas of suction increases, and rotor turns clockwise simultaneously.
As shown in Figure 7, rotor revolves and turn 90 degrees, and when cylinder and piston 6 arrived 9 o ' clock positions, this moment, the volume of cylinder maximum and was just left air inlet groove 9 ', no longer sucked gas.Rotor continues along turning clockwise, and piston 6 begins compression strokes, and volume of cylinder diminishes gradually.
As shown in Figure 8, rotor continues to revolve and turn 90 degrees, and cylinder and piston 6 rotated to for 12 o'clock during over against ignition mechanism and fueling injection equipment 7, the volume of cylinder minimum, and compression stroke finishes.At this moment, ignition mechanism and fueling injection equipment 7 igniting or injection, the work done of high pressure mixing gas firing.
As shown in Figure 9, rotor continues rotation, and cylinder enters expansion space stroke, and it is big that volume of cylinder becomes, and promote piston 6 and move downward, when cylinder and piston 6 rotate to 3 o ' clock positions, the volume of cylinder maximum, expansion space stroke finishes.Rotor continues rotation, the beginning exhaust stroke, and gas of combustion is discharged from exhaust port 8, and the volume of cylinder diminishes gradually, and cylinder and piston 6 come back to the position of Fig. 6, and a work cycle finishes.
Provide a kind of embodiment of different capacitance structure below:
As shown in Figure 5, gas holder 30 is communicated with the compression stroke casing wall and the intake stroke casing wall of outside cylinder respectively.The gas storage hole 31 of gas holder 30 is positioned at the position of 9 o'clock along the circumferential direction departing from cylinder radius clockwise, and extend a segment distance X, be to be communicated with the inlet hole 31 of gas holder after cylinder intake finishes to enter compression stroke, discharge a part of gas, the return-air hole 32 of gas holder 30 is positioned at the position of 6 o'clock along the circumferential direction departing from cylinder radius clockwise, be the initial position of former inlet hole 9, former inlet hole 9 along the circumferential direction departs from a segment distance X clockwise, and this segment length manservant of an official capacity is directly proportional.It is air-breathing, air-breathing from inlet hole 9 again to be that cylinder enters behind the intake stroke earlier in the gas holder.Make intake stroke shorten like this, and in compression stroke, make effective compression stroke diminish, and expansion space stroke remains unchanged, to making expansion ratio, to reach the effect of fuel-efficient, noise reduction and low emission greater than compression ratio.
Claims (6)
1. a rotor internal-combustion engine comprises outside cylinder, cylinder end piece, and main shaft, bent axle, connecting rod, piston, ignition mechanism is characterized in that also comprising:
Outside cylinder is cylindrical tube, have on it inlet hole with inlet hole become at least 90 the degree phase differences exhaust port, described inlet and outlet hole also is extended with the inlet and outlet groove along the inwall of outside cylinder;
One rotor, be positioned at outside cylinder, almost being the zero clearance with the outside cylinder inwall relatively rotates, it is cylindrical body, the centre has a through hole, and an end of main shaft, crankshaft-and-connecting-rod is arranged in this through hole, radially has at least one inside cylinder on the wall of rotor, the other end of piston and connecting rod is located in the inside cylinder, and the quantity of described bent axle, connecting rod, piston, ignition mechanism is corresponding with the quantity of inside cylinder;
One fixed gear is fixed on the outside cylinder;
One central gear is fixed on the main shaft;
One planet gear, with fixed gear and central gear engagement, planet pin is fixedlyed connected with rotor respectively, and the velocity ratio of three gears is 3: 1: 1;
Rotor rotates a circle, and cylinder is finished a work cycle.
2. rotor internal-combustion engine as claimed in claim 1 is characterized in that: have two cylinders on the described rotor, become 180 degree phase differences to arrange, described inlet and outlet hole be the bar hole on axial along the outside cylinder wall, and the axial distribution length of length and cylinder is suitable.
3. rotor internal-combustion engine as claimed in claim 1 is characterized in that: have four cylinders on the described rotor, become 90 degree phase differences to arrange, described inlet and outlet hole be the bar hole on axial along the outside cylinder wall, and the axial distribution length of length and cylinder is suitable.
4. as claim 2 or 3 described rotor internal-combustion engines, it is characterized in that: also comprise a gas holder, gas holder is communicated with the compression stroke casing wall and the intake stroke casing wall of outside cylinder respectively.
5. rotor internal-combustion engine as claimed in claim 4 is characterized in that: be provided with a cooling wheel in described outside cylinder one end cap, be fixed on rotor or the main shaft, the nearly main spindle's of cylinder end piece has cooling medium inlet, has the cooling medium outlet on the outside cylinder.
6. as claim 1 or 5 described rotor internal-combustion engines, it is characterized in that: on the outside cylinder circumferential surface, respectively have one watt of shape macropore, respectively be covered with a watt shape cover that has an aperture on it in the position of inlet and outlet hole and inlet and outlet groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200702230U CN201047306Y (en) | 2007-05-24 | 2007-05-24 | Rotor internal-combustion engines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200702230U CN201047306Y (en) | 2007-05-24 | 2007-05-24 | Rotor internal-combustion engines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201047306Y true CN201047306Y (en) | 2008-04-16 |
Family
ID=39299887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200702230U Expired - Fee Related CN201047306Y (en) | 2007-05-24 | 2007-05-24 | Rotor internal-combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201047306Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322339A (en) * | 2011-07-29 | 2012-01-18 | 周济亮 | Piston-type rotor motor |
| CN103104335A (en) * | 2013-02-04 | 2013-05-15 | 于魁江 | Novel internal-combustion engine |
| CN103216318A (en) * | 2013-01-27 | 2013-07-24 | 于魁江 | Novel internal combustion engine |
| CN104314673A (en) * | 2014-10-24 | 2015-01-28 | 徐州工程学院 | Master and slave dual-rotor four-stroke rotary engine |
| CN105781727A (en) * | 2016-03-21 | 2016-07-20 | 贺坤山 | Rotating piston engine |
| CN110067645A (en) * | 2019-04-26 | 2019-07-30 | 浙江大学 | A kind of New Ring-like Type engine |
-
2007
- 2007-05-24 CN CNU2007200702230U patent/CN201047306Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322339A (en) * | 2011-07-29 | 2012-01-18 | 周济亮 | Piston-type rotor motor |
| CN103216318A (en) * | 2013-01-27 | 2013-07-24 | 于魁江 | Novel internal combustion engine |
| CN103216318B (en) * | 2013-01-27 | 2015-04-01 | 于魁江 | Novel internal combustion engine |
| CN103104335A (en) * | 2013-02-04 | 2013-05-15 | 于魁江 | Novel internal-combustion engine |
| CN104314673A (en) * | 2014-10-24 | 2015-01-28 | 徐州工程学院 | Master and slave dual-rotor four-stroke rotary engine |
| CN105781727A (en) * | 2016-03-21 | 2016-07-20 | 贺坤山 | Rotating piston engine |
| CN105781727B (en) * | 2016-03-21 | 2018-06-05 | 贺坤山 | Rotary piston engine |
| CN110067645A (en) * | 2019-04-26 | 2019-07-30 | 浙江大学 | A kind of New Ring-like Type engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201047306Y (en) | Rotor internal-combustion engines | |
| CN101696653A (en) | Rotary-wing piston engine | |
| CN102562283B (en) | Internal combustion engine with double rotor pistons | |
| CN201068818Y (en) | Blade wheel internal combustion engine | |
| CN102003277A (en) | Internal combustion engine | |
| CN108571381B (en) | Three-stroke internal-cooling rotor engine | |
| CN1873197B (en) | Revolving internal-combustion engine | |
| CN102536447A (en) | Rotary-cylinder rotor engine | |
| CN107304710A (en) | Reciprocating-piston rotary engine | |
| US20070062469A1 (en) | Rotary radial internal combustion piston engine | |
| CN101929383B (en) | Piston gas supply rotor engine | |
| CN202468018U (en) | Revolving cylinder rotor engine | |
| CN101787926B (en) | Cam mechanism inside internal combustion engine with piston doing circular motion | |
| CN202148951U (en) | Double-rotor piston internal combustion engine | |
| CN201347795Y (en) | Circular motion piston type internal combustion engine | |
| CN201943805U (en) | Double row piston rotary engine | |
| CN205714421U (en) | Piston-rotating internal combustion engine | |
| CN205559061U (en) | Planet wheel rotor motor of many flat actuating cylinder combined drives | |
| CN105351087A (en) | Annular air cylinder rotor engine | |
| CN102011643A (en) | Combustion engine | |
| CN104595022A (en) | Internal combustion rotor engine | |
| CN102220902A (en) | Straight-shaft eccentric multi-cylinder double-circulation internal combustion engine | |
| CN201347796Y (en) | Cam mechanism in circular motion piston type internal combustion engine | |
| CN113027601B (en) | Double-rotor internal combustion engine | |
| CN201202527Y (en) | Non-air valve three-working chamber four-stroke multi-cylinder combining co-rotary type fuel gas engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080416 |