CN103758750B - Six-blade differential pump driven by Fourier noncircular gears - Google Patents
Six-blade differential pump driven by Fourier noncircular gears Download PDFInfo
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- CN103758750B CN103758750B CN201410039549.1A CN201410039549A CN103758750B CN 103758750 B CN103758750 B CN 103758750B CN 201410039549 A CN201410039549 A CN 201410039549A CN 103758750 B CN103758750 B CN 103758750B
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- 239000007788 liquid Substances 0.000 claims abstract description 93
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 230000021615 conjugation Effects 0.000 claims description 52
- 230000006837 decompression Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 4
- 230000010349 pulsation Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005213 imbibition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The invention discloses a six-blade differential pump driven by Fourier noncircular gears. Power of the six-blade differential pump is output by a motor, and is transferred to an input shaft by a coupling; a first Fourier noncircular gear and a second Fourier noncircular gear are both fixed on the input shaft; a first conjugated Fourier noncircular gear is fixed on an output shaft, and is meshed with the first Fourier noncircular gear; a second conjugated Fourier noncircular gear is fixedly connected with a second impeller through a shaft sleeve; the shaft sleeve is movably sleeved upon the output shaft; the second conjugated Fourier noncircular gear is meshed with the second Fourier noncircular gear; a first impeller is fixed on the output shaft; the first impeller and the second impeller are respectively provided with three blades; a one-way pressure relief valve is mounted in each of the blades; the direction of the one-way pressure relief valves is the same with the rotating direction of the blades. The six-blade differential pump driven by the Fourier noncircular gears has the advantages of large displacement, stable flow and easy adjustment of non-constant speed rules, and effectively solves the pressure pulsation and liquid trapping problems in the traditional differential pump.
Description
Technical field
The invention belongs to displacement pump technical field, relate to blade differential pump, be specifically related to six blade differential pumps that a kind of Fourier's noncircular gear drives.
Background technique
The liquid pump that universal machine is conventional has reciprocating pump, plunger pump, diaphragm pump, roller pump and centrifugal pump, wherein: live (post) fills in pump higher outlet pressure, but require that the sealing between piston and cylinder barrel is reliable, and pressure surge is large; Diaphragm pump can produce a more stable liquid stream when multi-cylinder, but complex structure; Roller pump delivery is uniform when stabilization of speed, and along with the raising of pressure, leakage rate increases, the lifting rate of pump and the corresponding reduction of efficiency; Centrifugal pump structure is simple, easily manufactures, but its discharge capacity is large, and pressure is low, for the less demanding occasion of working pressure.There is respective defect in these pumps, can't meet the constant flow rate of part special mechanical requirement, the demand of high pressure well.
Existing differential pump mainly contains following several according to the difference of driving mechanism:
Rotating guide-bar-gear type blade differential pump, its drive system bears alternate load, produces gear tooth noise, and also can cause impact noise when each pair clearance is larger.
Universal-joint gear wheel mechanism drive vane differential pump, the input shaft of its universal joint mechanism and the angle of output shaft are the key parameters affecting pump performance.This angle is larger, and pump delivery is also larger, but along with the increase at this angle, the flow pulsation aggravation of pump and the transmission efficiency of universal joint reduce.
Distortion eccentric circle noncircular gear drive vane differential pump, its eccentric circle non-circular gear pitch curve adjustment parameter mainly eccentricity and deformation coefficient, adjustment amount is limited, Adjustment precision is not high, cause velocity ratio optimization, adjustment inconvenience, design dumb, be unfavorable for further optimal design, be difficult to optimize the problem such as pressure pulsation, tired liquid.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, six blade differential pumps that a kind of Fourier's noncircular gear drives be provided, this blade differential pump displacement is large, pressure is high, stability of flow, compact structure; Fourier's non-circular gear pitch curve has six to adjust parameter, and the variable speed rule of its driving mechanism easily adjusts, convenient function optimization; By installing unidirectional Decompression valves in blade, during pressure limit, getting through contiguous enclosed cavity, effectively solving existing differential pump and being stranded liquid problem.
The present invention includes driver part and differential pump parts.
Described driver part comprises driving gearbox, input shaft, output shaft, first Fourier's noncircular gear, second Fourier's noncircular gear, the first conjugation Fourier noncircular gear, the second conjugation Fourier noncircular gear and axle sleeve.Motor drives input shaft to rotate, and input shaft passes through two bearings in the two side of driving gearbox; First described Fourier's noncircular gear and second Fourier's noncircular gear are all fixedly mounted on input shaft; The two ends of output shaft are respectively by bearings on the tank wall of driving gearbox and pump case, and the first conjugation Fourier noncircular gear is fixedly mounted on output shaft, and engages with first Fourier's noncircular gear; Second conjugation Fourier noncircular gear and the second impeller are all cemented on axle sleeve, and axle sleeve kink is on output shaft; Second conjugation Fourier noncircular gear engages with second Fourier's noncircular gear;
Described differential pump parts comprise pump case, the first impeller, the second impeller and unidirectional Decompression valves; Described pump case along the circumferential direction offers the first liquid port, the first liquid sucting port, the second liquid port, the second liquid sucting port, the 3rd liquid port and the 3rd liquid sucting port successively; First liquid port, the second liquid port and the 3rd liquid port are uniformly distributed along the circumference, and the first liquid sucting port, the second liquid sucting port and the 3rd liquid sucting port are uniformly distributed along the circumference; First impeller is fixed on output shaft; The first described impeller and the second impeller are all uniformly distributed along the circumference and are provided with three blades; Along the circumferential direction, the blade of the first impeller and the alternate setting of blade of the second impeller; All blade interior all install a unidirectional Decompression valves, and unidirectional Decompression valves direction is consistent with blade rotation direction.
The structure of described first Fourier's noncircular gear and second Fourier's noncircular gear is completely the same, the structure of the first conjugation Fourier noncircular gear and the second conjugation Fourier noncircular gear is completely the same, and first Fourier's noncircular gear, second Fourier's noncircular gear, the first conjugation Fourier noncircular gear and the second conjugation Fourier noncircular gear are three rank noncircular gears; The initial installation phase difference of the initial installation phase difference of first Fourier's noncircular gear and second Fourier's noncircular gear, the first conjugation Fourier noncircular gear and the second conjugation Fourier noncircular gear is 60 °.
The pitch curve representation of first Fourier's noncircular gear is:
Wherein, a
1, a
2, b
1and b
2for the parameter of fourier function, a
1span is 1 ~ 6, a
2span is 1 ~ 3, b
1span is 0 ~ 2.3, b
2the exponent number of span to be 0 ~ 2.3, n be first Fourier's noncircular gear, value is 3;
be the corner of first Fourier's noncircular gear,
it is the corresponding corner of first Fourier's noncircular gear
radius vector.
Computer center is iterative apart from a's:
Get centre distance initial value a
0the search of advance and retreat method is adopted to calculate the exact value of centre distance a.
The velocity ratio of first Fourier's noncircular gear and the first conjugation Fourier noncircular gear is:
The velocity ratio of second Fourier's noncircular gear and the second conjugation Fourier noncircular gear is:
Wherein, θ is the phase difference of first Fourier's noncircular gear and second Fourier's noncircular gear, and value is 60 °.
Make the velocity ratio i of first Fourier's noncircular gear and the first conjugation Fourier noncircular gear
21equal the velocity ratio i of second Fourier's noncircular gear and the second conjugation Fourier noncircular gear
43, four different corners can be tried to achieve
corner
get minimum value
time, the angular displacement of first Fourier's noncircular gear is
the angular displacement of second Fourier's noncircular gear is
the corner of the first impeller and the second impeller is respectively:
The blade angle θ of the first impeller and the second impeller
leafvalue be 25 ~ 35 °; The equal and opposite in direction of the first liquid port, the first liquid sucting port, the second liquid port, the second liquid sucting port, the 3rd liquid port and the 3rd liquid sucting port, and than the blade angle θ of blade
leaflittle 2 ~ 5 °.First liquid port centre bit angle setting of pump case
first liquid sucting port centre bit angle setting
second liquid port centre bit angle setting
second liquid sucting port centre bit angle setting
3rd liquid port centre bit angle setting
3rd liquid sucting port centre bit angle setting
The beneficial effect that the present invention has is:
The present invention adopts Fourier's non-circular gear mechanism, Fourier's non-circular gear pitch curve has six to adjust parameter, compare existing distortion eccentric circle noncircular gear adjustable parameter many, therefore Fourier's noncircular gear variable speed transmission rule easily adjusts, and easily realizes the optimization of the performances such as differential pump delivery, pressure, flow.By installing unidirectional Decompression valves in blade, during pressure limit, getting through contiguous enclosed cavity, effectively solving existing differential pump and being stranded liquid problem.The differential pump liquid sucting port driven due to Fourier's non-circular gear mechanism and liquid port are uniformly distributed along the circumference, and radial equilibrium is good, and non-constant speed drive is rotary motion, and reliable, the radial work loads that therefore operates steadily balance, pulsation controllability are good; Blade is many, discharge capacity is large, and simply, volumetric efficiency is high for the internal surface of pump case and blade shape.
Core institution of the present invention is two install Fourier's noncircular gear of phase place to difference, and parts are few, compact structure.
Accompanying drawing explanation
Fig. 1 is kinematic sketch of mechanism of the present invention;
Fig. 2 is the overall structure sectional view of differential pump parts in the present invention;
Fig. 3 is the meshing relation schematic diagram of Fourier's non-circular gear pitch curve when initial makeup location in the present invention;
Fig. 4 is blade limit position schematic diagram of the present invention.
In figure: 1, driving gearbox, 2, input shaft, 3, output shaft, 4, first Fourier's noncircular gear, 5, second Fourier's noncircular gear, 6, the first conjugation Fourier noncircular gear, the 7, second conjugation Fourier noncircular gear, 8, axle sleeve, 9, coupling, 10, motor, 11, pump case, 11-1, the first liquid port, 11-2, the first liquid sucting port, 11-3, the second liquid port, 11-4, the second liquid sucting port, 11-5, the 3rd liquid port, 11-6, the 3rd liquid sucting port, 12, the first impeller, the 13, second impeller, 14, unidirectional Decompression valves.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As illustrated in fig. 1 and 2, six blade differential pumps that a kind of Fourier's noncircular gear drives comprise driver part and differential pump parts.
Driver part comprises driving gearbox 1, input shaft 2, output shaft 3, first Fourier's noncircular gear 4, second Fourier's noncircular gear 5, first conjugation Fourier noncircular gear 6, second conjugation Fourier noncircular gear 7 and axle sleeve 8.Power is passed to input shaft 2 through coupling 9 by motor 10, and input shaft 2 passes through two bearings in the two side of driving gearbox 1; First Fourier's noncircular gear 4 and second Fourier's noncircular gear 5 are all fixedly mounted on input shaft 2; The two ends of output shaft 3 are respectively by bearings on the tank wall of driving gearbox 1 and pump case 11, and the first conjugation Fourier noncircular gear 6 is fixedly mounted on output shaft, and engages with first Fourier's noncircular gear 4; Second conjugation Fourier noncircular gear 7 and the second impeller 13 are all cemented on axle sleeve 8, and axle sleeve 8 kink is on output shaft 3; Second conjugation Fourier noncircular gear 7 engages with second Fourier's noncircular gear 5;
Differential pump parts comprise pump case 11, first impeller 12, second impeller 13 and unidirectional Decompression valves 14; Pump case along the circumferential direction offers the first liquid port 11-1, the first liquid sucting port 11-2, the second liquid port 11-3, the second liquid sucting port 11-4, the 3rd liquid port 11-5 and the 3rd liquid sucting port 11-6 successively; First liquid port 11-1, the second liquid port 11-3 and the 3rd liquid port 11-5 are uniformly distributed along the circumference, and the first liquid sucting port 11-2, the second liquid sucting port 11-4 and the 3rd liquid sucting port 11-6 are uniformly distributed along the circumference; First impeller 12 is fixed on output shaft 3; First impeller 12 and the second impeller 13 are all uniformly distributed along the circumference and are provided with three blades; Along the circumferential direction, the blade of the first impeller 12 and the alternate setting of blade of the second impeller 13; All blade interior all install a unidirectional Decompression valves 14, and unidirectional Decompression valves 14 direction is consistent with blade rotation direction.
As shown in Figure 3, the structure of first Fourier's noncircular gear 4 and second Fourier's noncircular gear 5 is completely the same, the structure of the first conjugation Fourier noncircular gear 6 and the second conjugation Fourier noncircular gear 7 is completely the same, and first Fourier's noncircular gear 4, second Fourier's noncircular gear 5, first conjugation Fourier noncircular gear 6 and the second conjugation Fourier noncircular gear 7 are three rank noncircular gears; The initial installation phase angle of first Fourier's noncircular gear 4 is θ
1, the initial installation phase angle of second Fourier's noncircular gear 5 is θ
2; The initial installation phase difference of first Fourier's noncircular gear 4 and second Fourier's noncircular gear 5, first conjugation Fourier noncircular gear 6 and the second conjugation Fourier noncircular gear 7 is θ
1-θ
2its value is 60 °, the differential realizing the first impeller 12 and the second impeller 13 rotates, make the volume cyclically-varying of differential pump enclosed cavity, produce discharge opeing at the first liquid port 11-1, the second liquid port 11-3, the 3rd liquid port 11-5, produce imbibition at the first liquid sucting port 11-2, the second liquid sucting port 11-4, the 3rd liquid sucting port 11-6.Because the non-at the uniform velocity transmission of Fourier's noncircular gear is continuous print, enclosed cavity be in complete airtight time, blade still has differential to rotate, and this will make enclosed cavity pressure exceed limit value, and vicinity enclosed cavity is got through pressure release by unidirectional Decompression valves 14, prevents tired liquid.
The working principle of six blade differential pumps that this Fourier's noncircular gear drives:
Power is passed to the first Fourier's noncircular gear 4 and second Fourier's noncircular gear 5 by coupling 9 and input shaft 2 by motor 10.First Fourier's noncircular gear 4 engages with the first conjugation Fourier noncircular gear 6, second Fourier's noncircular gear 5 engages with the second conjugation Fourier noncircular gear 7, power is passed to the first impeller 12 by output shaft 3 by the first conjugation Fourier noncircular gear 6, power is passed to the second impeller 13 by axle sleeve 8 by the second conjugation Fourier noncircular gear 7, and axle sleeve 8 and the second conjugation Fourier noncircular gear 7 kink are on output shaft 3.The installation phase place of two pairs of Fourier's noncircular gear pairs is different, and the differential realizing the first impeller 12 and the second impeller 13 rotates, thus realizes imbibition and discharge opeing.
The pitch curve representation of first Fourier's noncircular gear 4 is:
Wherein, a
1, a
2, b
1and b
2for the parameter of fourier function, get a
1=2.025, a
2=2.5, b
1=0.013 and b
2=0.013; N is the exponent number of first Fourier's noncircular gear 4, and value is 3;
be the corner of first Fourier's noncircular gear 4,
it is the corresponding corner of first Fourier's noncircular gear 4
radius vector.
Computer center is iterative apart from a's:
Get centre distance initial value a
0the exact value that=25mm adopts the search of advance and retreat method to calculate centre distance a is 50.4mm.
The velocity ratio of first Fourier's noncircular gear 4 and the first conjugation Fourier noncircular gear 6 is:
The velocity ratio of second Fourier's noncircular gear 5 and the second conjugation Fourier noncircular gear 7 is:
Wherein, θ is the initial installation phase difference of first Fourier's noncircular gear 4 and second Fourier's noncircular gear 5, and value is 90 °.
Make the velocity ratio i of first Fourier's noncircular gear 4 and the first conjugation Fourier noncircular gear 6
21equal the velocity ratio i of second Fourier's noncircular gear 5 and the second conjugation Fourier noncircular gear 7
43, four different corners can be tried to achieve
corner
get minimum value
time, the angular displacement of first Fourier's noncircular gear 4 is
the angular displacement of second Fourier's noncircular gear 5 is
the corner of the first impeller 12 and the second impeller 13 is respectively:
As shown in Figure 4, the blade angle θ of the first impeller 12 and the second impeller 13
leafvalue be 30 °; The size of the first liquid port, the first liquid sucting port, the second liquid port, the second liquid sucting port, the 3rd liquid port and the 3rd liquid sucting port is all than the blade angle θ of blade
leaflittle 2 °.First liquid port centre bit angle setting of pump case
first liquid sucting port centre bit angle setting
second liquid port centre bit angle setting ψ
row 2=ψ
row 1+ 120 °=170 °, the second liquid sucting port centre bit angle setting ψ
inhale 2=ψ
inhale 1+ 120 °=220 °, the 3rd liquid port centre bit angle setting ψ
row 3=ψ
row 2+ 120 °=290 °, the 3rd liquid sucting port centre bit angle setting ψ
inhale 3=ψ
inhale 2+ 120 °=340 °.
Claims (1)
1. six blade differential pumps of Fourier's noncircular gear driving, comprise driver part and differential pump parts, it is characterized in that:
Described driver part comprises driving gearbox, input shaft, output shaft, first Fourier's noncircular gear, second Fourier's noncircular gear, the first conjugation Fourier noncircular gear, the second conjugation Fourier noncircular gear and axle sleeve; Power is passed to input shaft through coupling by motor, and input shaft passes through two bearings in the two side of driving gearbox; First described Fourier's noncircular gear and second Fourier's noncircular gear are all fixedly mounted on input shaft; The two ends of output shaft are respectively by bearings on the tank wall of driving gearbox and pump case, and the first conjugation Fourier noncircular gear is fixedly mounted on output shaft, and engages with first Fourier's noncircular gear; Second impeller of the second conjugation Fourier noncircular gear and differential pump parts is all cemented on axle sleeve, and axle sleeve kink is on output shaft; Second conjugation Fourier noncircular gear engages with second Fourier's noncircular gear;
Described differential pump parts comprise pump case, the first impeller, the second impeller and unidirectional Decompression valves; Described pump case along the circumferential direction offers the first liquid port, the first liquid sucting port, the second liquid port, the second liquid sucting port, the 3rd liquid port and the 3rd liquid sucting port successively; First liquid port, the second liquid port and the 3rd liquid port are uniformly distributed along the circumference, and the first liquid sucting port, the second liquid sucting port and the 3rd liquid sucting port are uniformly distributed along the circumference; First impeller is fixed on output shaft; The first described impeller and the second impeller are all uniformly distributed along the circumference and are provided with three blades; Along the circumferential direction, the blade of the first impeller and the alternate setting of blade of the second impeller; All blade interior all install a unidirectional Decompression valves, and unidirectional Decompression valves direction is consistent with blade rotation direction;
The structure of described first Fourier's noncircular gear and second Fourier's noncircular gear is completely the same, the structure of the first conjugation Fourier noncircular gear and the second conjugation Fourier noncircular gear is completely the same, and first Fourier's noncircular gear, second Fourier's noncircular gear, the first conjugation Fourier noncircular gear and the second conjugation Fourier noncircular gear are three rank noncircular gears; The initial installation phase difference of the initial installation phase difference of first Fourier's noncircular gear and second Fourier's noncircular gear, the first conjugation Fourier noncircular gear and the second conjugation Fourier noncircular gear is 60 °;
The pitch curve representation of first Fourier's noncircular gear is:
Wherein, a
1, a
2, b
1and b
2for the parameter of fourier function, a
1span is 1 ~ 6, a
2span is 1 ~ 3, b
1span is 0 ~ 2.3, b
2the exponent number of span to be 0 ~ 2.3, n be first Fourier's noncircular gear, value is 3;
be the corner of first Fourier's noncircular gear,
it is the corresponding corner of first Fourier's noncircular gear
radius vector;
Computer center is iterative apart from a's:
Get centre distance initial value a
0the search of advance and retreat method is adopted to calculate the exact value of centre distance a;
The velocity ratio of first Fourier's noncircular gear and the first conjugation Fourier noncircular gear is:
The velocity ratio of second Fourier's noncircular gear and the second conjugation Fourier noncircular gear is:
Wherein, θ is the phase difference of first Fourier's noncircular gear and second Fourier's noncircular gear, and value is 60 °;
Make the velocity ratio i of first Fourier's noncircular gear and the first conjugation Fourier noncircular gear
21equal the velocity ratio i of second Fourier's noncircular gear and the second conjugation Fourier noncircular gear
43, four different corners can be tried to achieve
corner
get minimum value
time, the angular displacement of first Fourier's noncircular gear is
the angular displacement of second Fourier's noncircular gear is
the corner of the first impeller and the second impeller is respectively:
The blade angle θ of the first impeller and the second impeller
leafvalue be 25 ~ 35 °; The equal and opposite in direction of the first liquid port, the first liquid sucting port, the second liquid port, the second liquid sucting port, the 3rd liquid port and the 3rd liquid sucting port, and than the blade angle θ of blade
leaflittle 2 ~ 5 °; First liquid port centre bit angle setting of pump case
first liquid sucting port centre bit angle setting
second liquid port centre bit angle setting
second liquid sucting port centre bit angle setting
3rd liquid port centre bit angle setting
3rd liquid sucting port centre bit angle setting
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039549.1A CN103758750B (en) | 2014-01-27 | 2014-01-27 | Six-blade differential pump driven by Fourier noncircular gears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039549.1A CN103758750B (en) | 2014-01-27 | 2014-01-27 | Six-blade differential pump driven by Fourier noncircular gears |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103758750A CN103758750A (en) | 2014-04-30 |
| CN103758750B true CN103758750B (en) | 2015-07-22 |
Family
ID=50526044
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410039549.1A Expired - Fee Related CN103758750B (en) | 2014-01-27 | 2014-01-27 | Six-blade differential pump driven by Fourier noncircular gears |
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|---|---|---|---|---|
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| JPS6332101A (en) * | 1986-07-26 | 1988-02-10 | Mitsubishi Electric Corp | Rotary absorption and discharge device |
| US4844708A (en) * | 1987-04-02 | 1989-07-04 | Astrl Corporation | Elliptical-drive oscillating compressor and pump |
| JPH0494423A (en) * | 1990-08-11 | 1992-03-26 | Mikio Kurisu | Rotary engine |
| CA2324674A1 (en) * | 2000-10-31 | 2002-04-30 | Sorin-Vasile Cora | Scissors pump |
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| CN1439797A (en) * | 2003-03-29 | 2003-09-03 | 孟良吉 | Interactive speed variable double rotor engine |
| CN101196124A (en) * | 2007-08-08 | 2008-06-11 | 邵文英 | Vane type cavity capability changing device, vane type gas engine and vane compressor |
| WO2009040733A2 (en) * | 2007-09-27 | 2009-04-02 | Dall Asta Daniele | Device for converting energy |
| CN103291607A (en) * | 2013-06-17 | 2013-09-11 | 浙江理工大学 | Incomplete gear mechanism-driven blade differential pump |
| CN203730296U (en) * | 2014-01-27 | 2014-07-23 | 浙江理工大学 | Fourier non-circular gear-driven six-blade differential pump |
-
2014
- 2014-01-27 CN CN201410039549.1A patent/CN103758750B/en not_active Expired - Fee Related
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB362085A (en) * | 1929-10-12 | 1931-12-03 | Pierre Zens | |
| FR944904A (en) * | 1947-03-29 | 1949-04-20 | Rotary positive displacement pump | |
| DE2421532A1 (en) * | 1973-06-21 | 1975-07-03 | Miyaoku | Rotary vane arrangement for rotary piston pump or engine - has two vane assemblies with vanes ending near housing inner peripheral surface |
| JPS6332101A (en) * | 1986-07-26 | 1988-02-10 | Mitsubishi Electric Corp | Rotary absorption and discharge device |
| US4844708A (en) * | 1987-04-02 | 1989-07-04 | Astrl Corporation | Elliptical-drive oscillating compressor and pump |
| JPH0494423A (en) * | 1990-08-11 | 1992-03-26 | Mikio Kurisu | Rotary engine |
| CA2324674A1 (en) * | 2000-10-31 | 2002-04-30 | Sorin-Vasile Cora | Scissors pump |
| CN2555426Y (en) * | 2002-06-16 | 2003-06-11 | 哈尔滨工业大学 | Six-blade differential pump |
| CN1439797A (en) * | 2003-03-29 | 2003-09-03 | 孟良吉 | Interactive speed variable double rotor engine |
| CN101196124A (en) * | 2007-08-08 | 2008-06-11 | 邵文英 | Vane type cavity capability changing device, vane type gas engine and vane compressor |
| WO2009040733A2 (en) * | 2007-09-27 | 2009-04-02 | Dall Asta Daniele | Device for converting energy |
| CN103291607A (en) * | 2013-06-17 | 2013-09-11 | 浙江理工大学 | Incomplete gear mechanism-driven blade differential pump |
| CN203730296U (en) * | 2014-01-27 | 2014-07-23 | 浙江理工大学 | Fourier non-circular gear-driven six-blade differential pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103758750A (en) | 2014-04-30 |
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