CN100572772C - Circular arc tooth cycloid rotor engine - Google Patents
Circular arc tooth cycloid rotor engine Download PDFInfo
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- CN100572772C CN100572772C CNB2007100481552A CN200710048155A CN100572772C CN 100572772 C CN100572772 C CN 100572772C CN B2007100481552 A CNB2007100481552 A CN B2007100481552A CN 200710048155 A CN200710048155 A CN 200710048155A CN 100572772 C CN100572772 C CN 100572772C
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- circular arc
- gear ring
- pin
- circular
- arc gear
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The present invention is a kind of structure of circular arc tooth cycloid rotor formula motor.Circular arc tooth cycloid rotor engine stretches into the output shaft (1) of housing (6), coaxial fixedly connected internal rotor (2); Internal rotor (2) places in the cavity of circular arc gear ring (3) for contour curve is the gear of curtate epicycloid; Circular arc gear ring (3) central authorities are cavity, and internal chamber wall is provided with several circle-arc teeth, offers some circular holes on circular arc gear ring (3), inserts pin (4) in circular hole, and pin (4) external diameter is less than Circularhole diameter; One end of pin (4) is fixed on front cover (5) or the rear end cover (7); On end cap, the position between adjacent two circle-arc teeth of circular arc gear ring (3) is provided with spark plug (8); Filler opening (9) is offered at front cover (5) or rear end cover (7) in position between adjacent two circle-arc teeth of circular arc gear ring (3), offers relief opening (10) on rear end cover (7) or front cover (5).The present invention has simplified rotor and output shaft structure, has improved rotor and output shaft is stressed, and engine running is more steady.
Description
(1) technical field
The present invention is an explosive motor, particularly relates to a kind of structure of circular arc tooth cycloid rotor formula motor.
(2) background technique
Being illustrated in figure 1 as the rotary polygonal piston engine (Wankel engine) of prior art, is the rotor motor of unique a kind of practicality.It is mainly by gear, ring gear, three-apexed rotor, cylinder body, compositions such as spark plug.Three-apexed rotor is the triangle that three sections circular arcs are formed, and the inboard wall of cylinder block profile is the geometric locus on three-apexed rotor Atria summit when doing planetary motion.Gear is fixed on the cylinder end caps, and ring gear is fixedly mounted on the central position of three-apexed rotor, and these two gears are meshing with each other, and the gear ratio of gear and ring gear is 2: 3.Three-apexed rotor is bearing on the output eccentric shaft by bearing, and the output eccentric shaft is fixed on the cylinder end caps, the axis of fixed gear and the dead in line of exporting eccentric shaft.Spark plug is fixedly mounted on the cylinder body.Have the filler opening relief opening on the cylinder body.Three pinnacles of three-apexed rotor and inboard wall of cylinder block Continuous Contact are divided into three independently working rooms with inner chamber of cylinder block, as the firing chamber.
During work, the space between rotor and the shell body wall is as internal combustion chamber, and the pressure-driven rotor that expands by gas rotates.Because the shape relation of rotor, cylinder interior space always are divided into three working rooms, these working rooms were also in motion when triangular rotor rotated.Diverse location in the gerotor type cylinder body is finished air inlet, compression, work done (burning) and four processes of exhaust successively.
Rotary polygonal piston engine has advantages such as volume is little, in light weight, compact structure, moment of torsion is even, noise is little.
But the output shaft of this motor is an eccentric shaft, is crankshaft structure, makes complexity, and inertial force is arranged during rotor motion, and rotor and output shaft are stressed bad.For coordinating the rotation relation of rotor and output, rotor and cylinder end caps are provided with meshed gears in a pair.Manufacturing and installation difficulty that these have all increased rotary polygonal piston engine have improved cost.
(3) summary of the invention
The objective of the invention is, avoid adopting meshed gears structure in eccentric shaft and a pair, simplify the structure of rotor and output shaft, improved rotor and output shaft is stressed, engine running is more steady.
The purpose of invention is achieved through the following technical solutions:
Circular arc tooth cycloid rotor engine comprises front cover 5, housing 6 and rear end cover 7, it is characterized in that, stretches into the output shaft 1 of housing 6, coaxial fixedly connected internal rotor 2;
Circular arc gear ring 3 central authorities are cavity, and internal chamber wall is provided with several circle-arc teeth, offers some circular holes on circular arc gear ring 3, insert pin 4 in circular hole, and pin 4 external diameters are less than Circularhole diameter;
One end of pin 4 is fixed on front cover 5 or the rear end cover 7;
On end cap, the position between circular arc gear ring 3 adjacent two circle-arc teeth is provided with spark plug 8;
Circle-arc tooth number on described circular arc gear ring 3 internal chamber walls is 2 to 4.
Described pin 4 external diameters equal 0.2-0.9 circular hole internal diameter.
The outside of described circular arc gear ring 3 is in translation and the minimum range that forms between housing 6 inboards poor more than or equal to circular hole internal diameter and pin 4 external diameters.
Some circular holes distributing position on cross section of offering on described pin 4 and the circular arc gear ring 3 is identical, the axis coinciding in each corresponding pin and hole;
Circle-arc tooth on the flank of tooth of described round internal rotor 2 and circular arc gear ring 3 internal chamber walls is meshing with each other, and pin 4 tangent contact in the circular hole of circular arc gear ring 3;
The present invention mainly is made up of output shaft 1, internal rotor 2, circular arc gear ring 3, pin 4, front cover 5, housing 6, rear end cover 7, spark plug 8 etc.Output shaft 1 and internal rotor 2 coaxial fixedlying connected.The internal rotor contour curve is a curtate epicycloid.Pin 4 passes circular hole fixedly front cover 5 or the rear end cover 7 on the circular arc gear ring, so both guaranteed the fixed position of pin 4 on front cover 5 or rear end cover 7, be convenient to processing and assembling again, if pin 4 is fixed on front cover 5 and the rear end cover 7 simultaneously, with the difficulty that has increased greatly in boring processing and the assembling.Circular arc gear ring central authorities are cavity, and internal chamber wall is provided with some circle-arc teeth, and 2 to 4 of circle-arc teeth are advisable, and are not suitable for manufacturing too much, are less than 2 teeth and then can't carry out work.Circular hole internal diameter on the circular arc gear ring that pin 4 diameters pass less than it, in the pin external diameter equaled the scope of 0.2-0.9 circular hole internal diameter, the circular arc gear ring can be obtained translation scope preferably.The position of circular hole distribution is corresponding identical on the position that pin 4 distributes and the circular arc gear ring, can guarantee like this circular hole on the circular arc gear ring and pin 4 be in operation guarantee all the time tangent.Spark plug is provided with on circular arc gear ring or the front and rear cover.(engagement) touched with the circular-arc tooth surface continuous phase cut-grafting on the circular arc gear ring 3 in internal rotor 2 surfaces, and internal rotor 2, circular arc gear ring 3 and front and rear cover form a plurality of sealed hollow as internal combustion chamber (working room).Each firing chamber is provided with fuel oil filler opening and exhaust vent respectively, also is provided with spark plug (ignition mechanism) simultaneously.
Circle-arc tooth on the flank of tooth of internal rotor 2 and circular arc gear ring 3 internal chamber walls is meshing with each other, pin 4 is tangent contact in the circular hole of circular arc gear ring 3, distance between circular arc gear ring 3 and the housing 6 is poor more than or equal to circular hole internal diameter and pin (4) external diameter, and so structure can guarantee that component are in operation and reaches purpose of the present invention.
Working principle: internal rotor 2, circular arc gear ring 3 and front and rear cover form a plurality of sealed hollow as internal combustion chamber, the pressure-driven internal rotor that expands by gas rotates, drive the motion of circular arc gear ring simultaneously, because the circle-arc tooth of circular arc gear ring and internal rotor engagement, and the restriction that touched by the pin-and-hole continuous phase cut-grafting on pin and the circular arc gear ring, the circular arc gear ring is made the circle translational motion.The situation of a working room as shown in Figure 3, when internal rotor circles, diverse location in relative circle-arc tooth circle body is finished air inlet, compression, work done (burning) and four processes of exhaust successively, once the igniting, the expansion working stroke, and the corresponding in theory main shaft of each stroke turns over 90 ° of angles, rotate a circle and just can finish a work done process, be different from 180 ° of the corresponding crank angles of each process of wankel, promptly rotated for two weeks and just finish a work done process.In the meantime, other working rooms that face have mutually also successively alternately finished same four-journey work cycle.
Beneficial effect of the present invention and advantage:
Saved the output eccentric shaft, simplified the structure of output shaft, eliminated the dynamic unbalance of output shaft, improved rotor and output shaft is stressed, engine running is more steady, and noise is littler.
Save meshed gears in a pair, simplified rotor structure.
Simplified the structure of motor, improved process for machining and manufacturing, reduced cost.
Fuel oil expands and to act directly on rotor and the circular arc gear ring, and the expansion working stroke of each working room always hockets continuously, so the rotor output torque is steady, engine running is steady, and noise is littler.
Circle-arc tooth gear ring inner wall shape can be optimized according to the needs of burning, to improve combustion efficiency.
(4) description of drawings
Fig. 1 is the prior art cycloid rotor pump, along the pump housing and pump cover junction plane sectional plan view;
Fig. 2 is that circular arc tooth cycloid rotor engine of the present invention is along the pump housing and pump cover junction plane sectional plan view;
Fig. 3 is the side view cutaway drawing of Fig. 2;
Fig. 4 for another embodiment of circular arc tooth cycloid rotor engine of the present invention along the pump housing and pump cover junction plane sectional plan view;
Fig. 5 is the side view cutaway drawing of Fig. 4;
When Fig. 6 circled for internal rotor, the diverse location in the circle-arc tooth circle body was finished the stroke schematic representation of air inlet, compression, work done (burning) and four processes of exhaust successively.
Among the figure, 1-output shaft 2-internal rotor 3-circular arc gear ring 4-pin 5-front cover 6-cylinder body 7-rear end cover 8-spark plug 9-filler opening 10-relief opening
(5) embodiment
Below in conjunction with drawings and Examples, the present invention is elaborated.
Embodiment 1:
A kind of hole-pin rotary engine, its structure as shown in Figure 2.Compositions such as the main output shaft 1 of this motor, internal rotor 2, circular arc gear ring 3, pin 4, front cover 5, housing 6, rear end cover 7, spark plug 8.Output shaft 1 and internal rotor 2 coaxial fixedlying connected.The internal rotor contour curve is a curtate epicycloid.Pin 4 passes circular hole on the circular arc gear ring fixedly on front cover 5 or the rear end cover 7.Circular arc gear ring central authorities are cavity, and internal chamber wall is provided with three circle-arc teeth.Circular hole internal diameter on the circular arc gear ring that pin 4 diameters pass less than it.The position of circular hole distribution is corresponding identical on the position that pin 4 distributes and the circular arc gear ring.Spark plug is provided with on circular arc gear ring or the front and rear cover.(engagement) touched with the circular-arc tooth surface continuous phase cut-grafting on the circular arc gear ring 3 in internal rotor 2 surfaces, and internal rotor 2, circular arc gear ring 3 and front and rear cover form a plurality of sealed hollow as internal combustion chamber (working room).Each firing chamber is provided with the turnover fuel port respectively, also is provided with spark plug (ignition mechanism) simultaneously.
Working principle: internal rotor 2, circular arc gear ring 3 and front and rear cover form a plurality of sealed hollow as internal combustion chamber, the pressure-driven internal rotor that expands by gas rotates, drive the motion of circular arc gear ring simultaneously, because the circle-arc tooth of circular arc gear ring and internal rotor engagement, and the restriction that touched by the pin-and-hole continuous phase cut-grafting on pin and the circular arc gear ring, the circular arc gear ring is made the circle translational motion.The situation of a working room as shown in Figure 3, when internal rotor circles, diverse location in the circle-arc tooth circle body is finished air inlet, compression, work done (burning) and four processes of exhaust successively, once the igniting, the expansion working stroke, and the corresponding in theory main shaft of each stroke turns over 90 ° of angles, is different from 180 ° of the corresponding crank angles of each process of wankel.In the meantime, other working rooms that face have mutually also successively alternately finished same four-journey work cycle.
Embodiment 2:
A kind of hole-pin rotary engine, its structure as shown in Figure 4.Compositions such as the main output shaft 1 of this motor, internal rotor 2, circular arc gear ring 3, pin 4, front cover 5, housing 6, rear end cover 7, spark plug 8.Output shaft 1 and internal rotor 2 coaxial fixedlying connected.Internal rotor has three gear teeth, and tooth curve is a curtate epicycloid.Pin 4 passes circular hole on the circular arc gear ring fixedly on front cover 5 or the rear end cover 7.Circular arc gear ring central authorities are cavity, and internal chamber wall is provided with four circle-arc teeth.Circular hole internal diameter on the circular arc gear ring that pin 4 diameters pass less than it.The position of circular hole distribution is corresponding identical on the position that pin 4 distributes and the circular arc gear ring.Spark plug is provided with on circular arc gear ring or the front and rear cover.(engagement) touched with the circular-arc tooth surface continuous phase cut-grafting on the circular arc gear ring 3 in internal rotor 2 surfaces, and internal rotor 2, circular arc gear ring 3 and front and rear cover form a plurality of sealed hollow as internal combustion chamber (working room).Each firing chamber is provided with the turnover fuel port respectively, also is provided with spark plug (ignition mechanism) simultaneously.
Claims (6)
1. circular arc tooth cycloid rotor engine comprises front cover (5), housing (6) and rear end cover (7), it is characterized in that, stretches into the output shaft (1) of housing (6), coaxial fixedly connected internal rotor (2);
Internal rotor (2) places in the cavity of circular arc gear ring (3) for contour curve is the gear of curtate epicycloid;
Circular arc gear ring (3) central authorities are cavity, and internal chamber wall is provided with several circle-arc teeth, offers some circular holes on circular arc gear ring (3), inserts pin (4) in circular hole, and pin (4) external diameter is less than Circularhole diameter;
One end of pin (4) is fixed on front cover (5) or the rear end cover (7);
On end cap, the position between adjacent two circle-arc teeth of circular arc gear ring (3) is provided with spark plug (8);
Filler opening (9) is offered at front cover (5) or rear end cover (7) in position between adjacent two circle-arc teeth of circular arc gear ring (3), offers relief opening (10) on rear end cover (7) or front cover (5).
2. circular arc tooth cycloid rotor engine according to claim 1 is characterized in that the circle-arc tooth number on described circular arc gear ring (3) internal chamber wall is 2 to 4.
3. circular arc tooth cycloid rotor engine according to claim 1 is characterized in that pin (4) external diameter equals 0.2-0.9 circular hole internal diameter.
4. circular arc tooth cycloid rotor engine according to claim 1, the outside that it is characterized in that circular arc gear ring (3) are in translation and the minimum range that forms between housing (6) inboard poor more than or equal to circular hole internal diameter and pin (4) external diameter.
5. circular arc tooth cycloid rotor engine according to claim 1 is characterized in that some circular holes distributing position on cross section of offering on pin (4) and the circular arc gear ring (3) is identical, the axis coinciding in each corresponding pin and hole.
6. circular arc tooth cycloid rotor engine according to claim 1 is characterized in that the flank of tooth of circle internal rotor (2) and the circle-arc tooth on circular arc gear ring (3) internal chamber wall are meshing with each other, and pin (4) tangent contact in the circular hole of circular arc gear ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100481552A CN100572772C (en) | 2007-11-13 | 2007-11-13 | Circular arc tooth cycloid rotor engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100481552A CN100572772C (en) | 2007-11-13 | 2007-11-13 | Circular arc tooth cycloid rotor engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101158313A CN101158313A (en) | 2008-04-09 |
| CN100572772C true CN100572772C (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100481552A Expired - Fee Related CN100572772C (en) | 2007-11-13 | 2007-11-13 | Circular arc tooth cycloid rotor engine |
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| Country | Link |
|---|---|
| CN (1) | CN100572772C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114352404B (en) * | 2022-01-07 | 2022-12-09 | 西安交通大学 | Calculation method for parameter design of reverse-triangular rotor engine |
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2007
- 2007-11-13 CN CNB2007100481552A patent/CN100572772C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101158313A (en) | 2008-04-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20091223 Termination date: 20131113 |