CN102182678A - Novel three-line meshed internal-pressure sealed pump - Google Patents
Novel three-line meshed internal-pressure sealed pump Download PDFInfo
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- CN102182678A CN102182678A CN2011101567932A CN201110156793A CN102182678A CN 102182678 A CN102182678 A CN 102182678A CN 2011101567932 A CN2011101567932 A CN 2011101567932A CN 201110156793 A CN201110156793 A CN 201110156793A CN 102182678 A CN102182678 A CN 102182678A
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Abstract
The invention discloses a novel three-line meshed internal-pressure sealed pump, comprising a pump body 4, a rotor shaft 1 mounted on a central hole 41 of the pump body 4, and a driven rotor 2 mounted on an eccentric half hole 42 of the pump body 4; the inner working end faces of the two rotors are close to a bottom surface 40 of the eccentric half hole 42, and the outer working end faces of the two rotors are close to the front plane of a compensation disc 6; a positioning pin 7 fixed on an eccentric end cover 5 limits the compensation disc 6 so that the compensation disc 6 only can move axially; the eccentric end cover 5 is hermetically fixed on the outer end face of the working area of the eccentric half hole 42 by using at least three bolts 8; the space between the back side of the compensation disc 6 and the eccentric end cover 5 is communicated with an internal pressure return passage 9; and the rotor shaft 1 and the driven rotor 2 are mutually meshed in rotation to form A, B and C working spaces. The structure is synchronously provided with end face corrosion sealing compensation and radial corrosion sealing compensation and a good dynamic isolated sealing state between the high-pressure chamber and the low-pressure chamber can be realized for a long time.
Description
Technical field
The invention belongs to mechanical engineering field, International Classification of Patents is the F04D non-varactor pump, relate to a kind of with mechanical energy be converted to fluid pressure can the transformation of energy displacement pump, be meant a kind of three-way engagement inner pressuring sealing new pump especially.
Background technique
Known displacement pump main structure form has: plunger pump, screw pump, Roots pump and sliding vane pump.Have the high advantage of efficient as displacement pump, but all exist its efficient of long-time running wearing and tearing back obviously to reduce, cause the main cause of above-mentioned defective to be that the end face dynamic isolation between hyperbaric chamber and the low-pressure cavity fails to play effective sealing.The undersized easy heat expansion of end face fit tolerance is stuck firmly, the end face fit tolerance is oversize then fails to play effective sealing, and long-time running wearing and tearing back sealing effect is poorer, and the production line of having to stop is changed pumping unit, causes very big direct waste and indirect loss.
Plunger pump is fit to high pressure but pulse is big, does not possess self-compensating after the wearing and tearing; Screw pump be fit to high viscosity but on unit volume the manufacture cost height, do not possess self-compensating after the wearing and tearing yet; Roots pump is fit to liquids and gases but radially there is the gap in it, and radially with behind the end wear does not possess self-compensating; Sliding vane pump can be accomplished self-compensating after the gauge wear, but does not still possess self-compensating behind the end wear, and the slide plate stuck phenomenon happens occasionally.So far fail to see a kind of effective displacement pump both at home and abroad, can possess the structure function of end wear sealing compensation and gauge wear sealing compensation simultaneously.(its English full name of " SCI " U.S. " science citation index " is Science Citation Index to the U.S.'s three large-engineerings science and technology magazine, is called for short SCI; " EI " U.S. its English full name of Engineering Index is The Engineering Index, is called for short EI; Its English full name of " ISTP " U.S. " scientific and technical conference record index " is Index to Scientific ﹠amp; Technical Proceedings is called for short ISTP.) take in global engineering science and technology paper, also not seen has a kind of displacement pump that can possess end wear sealing compensation and gauge wear sealing compensation simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of three-way engagement inner pressuring sealing new pump, the technology that possesses end wear sealing compensation and gauge wear sealing compensation simultaneously, to realize being in good dynamic isolation sealing state for a long time between hyperbaric chamber and the low-pressure cavity, remedy the deficiencies in the prior art, fill up the technological gap that displacement pump possesses end wear sealing compensation and gauge wear sealing compensation simultaneously.
To achieve these goals, the invention provides following technological scheme: a kind of three-way engagement inner pressuring sealing new pump, comprise the pump housing 4 and be installed in the rotor shaft 1 on the central through bore 41 of the pump housing 4 and be installed on off-centre half hole 42 of the pump housing 4 from rotor 2, the work inner end of two rotors is pasting the bottom plane 40 in eccentric half hole 42, the horizontal frontal plane of compensating disc 6 is also being pasted in the work exterior edge face of two rotors, and have the locating stud that is fixed on the eccentric end cap 57 restriction compensating discs 6 to do to endwisely slip, the screw 8 airtight exterior edge faces, working area that are fixed on eccentric half hole 42 that eccentric end cap 5 usefulness are at least three, space between the back side of described compensating disc 6 and the eccentric end cap 5 with in push back runner 9 and communicate, in push back runner 9 the other end lead to outlet 49; And rotor shaft 1 and be meshing with each other rotation from rotor 2 produces three axially extended sealing strips synchronously, constitutes A, B and three working spaces of C.In push back the pressure that runner 9 introduces and make that the back side of compensating disc 6 is stressed stressed greater than the front, the work exterior edge face of two rotors can be close in its front, forces the work inner end of two rotors also to be close to bottom plane 40 then, possesses the end wear sealing compensation; And rotor shaft 1 and produce three axially extended sealing strips synchronously from rotor 2, constitute A, B and three working spaces of C, can guarantee that still three axially extended sealing strips form synchronously after the long-term use of the experience uniform wear, three axially extended sealing strips that produce have guaranteed that radially sliding of three working spaces is in effective sealing all the time synchronously.This structure has accomplished to possess simultaneously end wear sealing compensation and gauge wear sealing compensation, realizes being in good dynamic isolation sealing state for a long time between hyperbaric chamber and the low-pressure cavity.
Central through bore on the described pump housing 4 is with " O " type ring recess, the central axis O of central through bore 41 for 41 li
2Central axis O with off-centre half hole 42
1Between eccentric distance t, crescent shape suction inlet 47 UNICOMs on the bottom plane 40 import 46, another crescent shape row mouthful 48 UNICOMs on the bottom plane 40 outlet 49, outlet 49 have a bypass in push back runner 9 and lead to the back side of compensating disc 6 and the space between the eccentric end cap 5.
Described rotor shaft 1 comprises three five equilibrium cambered surface active sections 13 and does not have keyway shaft part 11 and shaft with keyway section 12, the work inner end of three five equilibrium cambered surface active sections 13 is pasting the work exterior edge face of bottom plane 40, three five equilibrium cambered surfaces active section 13 and is being close to by the horizontal frontal plane of compensating disc 6.
Describedly comprise complete section of four five equilibrium cambered surfaces from rotor 2, the width of full section both ends of the surface is equal with the size of the both ends of the surface width of three five equilibrium cambered surface active sections 13 consistent.
The central axis O of band " O " the type ring recess through hole 61 on the described compensating disc 6
2Central axis O with band " O " type ring recess cylindrical 62
1Between eccentric distance t, the eccentric positioning hole 67 of compensating disc 6 is slidingly matched with locating stud 7.Push back the outlet pressure that runner 9 is introduced by means of interior, the front of causing compensating disc 6 is that half leads to outlet, second half leads to import, and being gross area, the back side leads to outlet, make that the back side of compensating disc 6 is stressed stressed greater than the front, the horizontal frontal plane of compensating disc 6 can be close to the work exterior edge face of two rotors all the time, forces the work inner end of two rotors also to be close to bottom plane 40 then, guarantees that the end face slip of three working spaces is in effective sealing all the time.
The central axis O of described rotor shaft 1
2With central axis O from rotor 2
1Between eccentric distance t, three five equilibrium cambered surface active sections 13 of rotor shaft 1 and between four five equilibrium cambered surfaces of rotor 2, rotation, being meshing with each other, produce three point of contact synchronously, cross point of contact and form three axially extended sealing strips, horizontal frontal plane in conjunction with bottom plane 40 and compensating disc 6, constitute A, B and three working spaces of C, can guarantee that still three axially extended sealing strips form synchronously after the long-term use of the experience uniform wear, three axially extended sealing strips that produce guarantee that radially sliding of three working spaces is in effective sealing all the time synchronously.
Possess in the time of end wear sealing compensation and gauge wear sealing compensation, realize being in good dynamic isolation sealing state for a long time between hyperbaric chamber and the low-pressure cavity.
Installation steps and working principle:
The shaft with keyway section 12 of rotor shaft 1 is 40 1 sides from the bottom plane, pass central through bore 41 and are slidingly matched with it, and the work inner end of three five equilibrium cambered surface active sections 13 is pasting bottom plane 40.Be placed in eccentric half hole 42 from rotor 2 and be slidingly matched, also pasting bottom plane 40 from the work inner end of rotor 2.The central axis O of rotor shaft 1
2With central axis O from rotor 2
1Between eccentric distance t, three five equilibrium cambered surface active sections 13 of rotor shaft 1 and between four five equilibrium cambered surfaces of rotor 2, rotation, being meshing with each other, produce three point of contact synchronously, cross point of contact and form three axially extended sealing strips, horizontal frontal plane in conjunction with bottom plane 40 and compensating disc 6, constitute A, B and three working spaces of C, can guarantee that still three axially extended sealing strips form synchronously after the long-term use of the experience uniform wear, guarantee the radially effectively sealing all the time of three working spaces.
The central axis O of the band on the compensating disc 6 " O " type ring recess through hole 61
2Central axis O with band " O " type ring recess cylindrical 62
1Between eccentric distance t, the eccentric positioning hole 67 of compensating disc 6 is slidingly matched with locating stud 7.The horizontal frontal plane of compensating disc 6 inwardly, band " O " type ring recess through hole 61 is inserted in from no keyway shaft part 11 1 ends of rotor shaft 1 and is slidingly matched, band " O " type ring recess cylindrical 62 is slidingly matched with eccentric half hole 42.
Band " O " type ring recess through hole 51 on the eccentric end cap 5 is inserted in from no keyway shaft part 11 1 ends of rotor shaft 1 and is slidingly matched, and locating stud 7 is fastened on the eccentric end cap 5 inboard faces.With eccentric end cap 5 shimmings 54 backs with at least three screw 8 on the exterior edge face, working area in airtight off-centre half hole 42 that is fixed on the pump housing 4 of the outer circular edge of eccentric end cap 5.
The back side of compensating disc 6 has positioning hole 67 and locating stud 7 to be slidingly matched, and locating stud 7 is fixedlyed connected with eccentric end cap 5, thereby compensating disc 6 can only be made axial slip with respect to eccentric end cap 5." O " type circle in all " O " type ring recess plays the motive sealing effect at position of living in.
During work, external force drives rotor shaft 1 rotation by shaft with keyway section 12, then stir from rotor 2 rotations, from both rotating center deviation distances of rotor 2 and rotor shaft 1 is t, three five equilibrium cambered surface active sections 13 of rotor shaft 1 and between four five equilibrium cambered surfaces of rotor 2, rotation, being meshing with each other, produce three axially extended sealing strips synchronously,, constitute A, B and three working spaces of C in conjunction with the horizontal frontal plane of bottom plane 40 and compensating disc 6.During rotation, A, B and three working spaces of C along with rotation will become a big side gradually and be crescent shape suction inlet 47, lead to import 46; One side that will diminish gradually along with rotation of A, B and three working spaces of C is a crescent shape row mouth 48, leads to outlet 49.Rotor shaft 1 rotation continuously orders about A, B and three working spaces of C and goes round and begins again and finish suction, row's work.
The invention has the beneficial effects as follows: rotor shaft 1 and between rotor 2, rotation, being meshing with each other, produce three axially extended sealing strips synchronously, make that by means of the interior runner 9 that pushes back the back side of compensating disc 6 is stressed stressed greater than the front, horizontal frontal plane one side of compensating disc 6 is close to the work exterior edge face of two rotors all the time, then force the work inner end of two rotors also to be close to bottom plane 40, constitute A, three working spaces of B and C have possessed end wear sealing compensation and gauge wear sealing compensation simultaneously, realize being in good dynamic isolation sealing state for a long time between hyperbaric chamber and the low-pressure cavity.
Description of drawings
Fig. 1 is the sectional drawing of integral body of the present invention by axis;
Fig. 2 is the sectional drawing in W-W cross section among Fig. 1;
Fig. 3 is that inner rotor shaft 1 produces the relative position relation of three working spaces synchronously with respect to being in operation from rotor 2;
Fig. 4 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 40 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 30 the degree after relative position relation;
Fig. 5 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 80 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 60 the degree after relative position relation;
Fig. 6 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 120 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 90 the degree after relative position relation;
Fig. 7 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 180 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 135 the degree after relative position relation;
Fig. 8 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 240 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 180 the degree after relative position relation;
Fig. 9 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 360 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 270 the degree after relative position relation;
Figure 10 is with respect to Fig. 3, and rotor shaft 1 is around central axis O
2Be rotated counterclockwise 480 the degree, from rotor 2 around eccentric axis O
1Be rotated counterclockwise 360 the degree after relative position relation.
Figure 11 is the perspective view of rotor shaft 1.
Figure 12 is a rotor shaft 1 and from the camberline construction drawing of rotor 2.
Embodiment
In conjunction with the accompanying drawings and embodiments, further structure of the present invention and working principle are elaborated.
Among Figure 12, illustrate rotor shaft 1 and from the camberline working process of rotor 2 by means of CAD:
Setting-out X of elder generation and vertical with it line Y1 and line Y2, intersection point is respectively O
1, O
2, O
1With O
2Be 6mm at a distance of get eccentric distance t distance here for eccentric distance t.;
With O
1Be the center of circle, R1 is that radius is made basic circle R1.Here getting the R1 radius is 60mm;
An intersection point with basic circle R1 and line X is the center of circle, and R2 is that radius is made arc section R2, again with O
1Be the center of circle, with arc section R2 around O
1Quartering annular display.Here getting the R2 radius is 40mm;
The distance that is extended to R3 with the intersection point of arc section R2 and line X is the center of circle, is that the intersection point that radius is crossed arc section R2 and line X is made arc section R3 with R3, again with O
2Be the center of circle, with arc section R3 around O
2Trisection annular display.Here getting the R3 radius is 120mm;
Choose two arc section R3 and an arc section R2 respectively, the three-way tangent arc section R4 that does gets the R4 radius here and is approximately 4.7mm;
With R5 is that radius is made two adjacent arc section R2 of arc section R5 connection respectively, and the R5 radius is 32mm here.
Article three, three point of contact alternately producing synchronously with four arc section R2 of arc section R4 are crossed point of contact and are formed three axially extended sealing strips, constitute A, B and three working spaces of C.Even after using uniform wear for a long time, three point of contact that produce synchronously form three axially extended sealing strips can guarantee that still three axially extended sealing strips form synchronously, and that guarantees three working spaces radially is in effective sealing all the time.
The both ends of the surface width of three five equilibrium cambered surface active sections 13 of rotor shaft 1 equates consistent with size from the both ends of the surface width of rotor 2, here getting the both ends of the surface width all is 50mm, the both ends of the surface width of three five equilibrium cambered surface active sections 13 of rotor shaft 1 with from rotor 2 the size of both ends of the surface width equate consistent, the work inner end of two rotors is pasting bottom plane 40 respectively, and the horizontal frontal plane of compensating disc 6 is pasting the work exterior edge face of two rotors respectively.Make that by means of the interior runner 9 that pushes back the back side of compensating disc 6 is stressed stressed greater than the front, the horizontal frontal plane of compensating disc 6 is close to the work exterior edge face of two rotors all the time, then force the work inner end of two rotors also to be close to bottom plane 40, guarantee that the end face slip of three working spaces is in effective sealing all the time." O " type circle in all " O " type ring recess plays the motive sealing effect at position of living in.
A kind of three-way engagement inner pressuring sealing new pump, comprise the pump housing 4 and be installed in the rotor shaft 1 on the central through bore 41 of the pump housing 4 and be installed in off-centre half hole 42 of the pump housing 4 from rotor 2, there is eccentric end cap 5 exterior edge face, working area in eccentric half hole 42, described from rotor 2 the work exterior edge face and eccentric end cap 5 between have the horizontal frontal plane of compensating disc 6 pasting work exterior edge face from rotor 2, locating stud 7 slip fixed compensation dishes 6 circumferential positions with respect to eccentric end cap 5.
Central through bore on the pump housing 4 is with " O " type ring recess, the central axis O of central through bore 41 for 41 li
2Central axis O with off-centre half hole 42
1Between eccentric distance t, crescent shape suction inlet 47 UNICOMs on the bottom plane 40 import 46, another crescent shape row mouthful 48 UNICOMs outlet 49, outlet 49 have a bypass in push back runner 9 and lead to the back side of compensating disc 6 and the space between the eccentric end cap 5.
Earlier with the shaft with keyway section 12 of rotor shaft 1 from the bottom plane 40 1 sides, pass central through bore 41 and be slidingly matched with it, the work inner end of three five equilibrium cambered surface active sections 13 is pasting bottom plane 40.To be placed in eccentric half hole 42 from rotor 2 and be slidingly matched, also paste bottom plane 40 from the work inner end of rotor 2.Make the central axis O of rotor shaft 1
2With central axis O from rotor 2
1Between eccentric distance t.From no keyway shaft part 11 1 ends, load onto compensating disc 6 successively again, locating stud 7 is fixed on the back side of eccentric end cap 5, at last with eccentric end cap 5 shimmings 54, with the outer circular edge of four screws 8, on the exterior edge face, working area in airtight off-centre half hole 42 that is fixed on the pump housing 4 along eccentric end cap 5.
During work, external force drives rotor shaft 1 rotation by shaft with keyway section 12, then stir from rotor 2 rotations, from both rotating center deviation distances of rotor 2 and rotor shaft 1 is t, three five equilibrium cambered surface active sections 13 of rotor shaft 1 and from producing three axially extended sealing strips between four five equilibrium cambered surfaces of rotor 2 synchronously, in conjunction with the horizontal frontal plane of bottom plane 40 and compensating disc 6, constitute A, B and three working spaces of C.During rotation, A, B and three working spaces of C along with rotation will become a big side gradually and be crescent shape suction inlet 47, lead to import 46; One side that will diminish gradually along with rotation of A, B and three working spaces of C is a crescent shape row mouth 48, leads to outlet 49.Push back runner 9 on outlet 49 bypass and pressure is sent to the back side of compensating disc 6 and the space between the eccentric end cap 5, make that the back side of compensating disc 6 is stressed stressed greater than the front, the horizontal frontal plane of compensating disc 6 can be close to the exterior edge face of two rotors all the time, then force the inner end of two rotors also to be close to bottom plane 40, guarantee that the end face slip of three working spaces is in effective sealing all the time.Rotor shaft 1 rotation continuously orders about A, B and three working spaces of C and goes round and begins again and finish suction, row's work.
At last, it is also to be noted that what more than enumerate only is a specific embodiment of the present invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be regarded as protection scope of the present invention.
Claims (6)
1. three-way engagement inner pressuring sealing new pump, comprise the pump housing (4) and be installed in the rotor shaft (1) on the central through bore (41) of the pump housing (4) and be installed on off-centre half hole (42) of the pump housing (4) from rotor (2), the work inner end of two rotors is pasting the bottom plane (40) in eccentric half hole (42), the horizontal frontal plane of compensating disc (6) is also being pasted in the work exterior edge face of two rotors, and have locating stud (7) the restriction compensating disc (6) that is fixed on the eccentric end cap (5) to do to endwisely slip, eccentric end cap (5) comes the airtight exterior edge face, working area that is fixed on eccentric half hole (42) with at least three screw (8), it is characterized in that: the space between the back side of described compensating disc (6) and the eccentric end cap (5) with in push back runner (9) and communicate, in push back runner (9) the other end lead to outlet (49); And rotor shaft (1) and be meshing with each other rotation from rotor (2) produces three axially extended sealing strips synchronously, constitutes A, B and three working spaces of C.
2. a kind of three-way engagement inner pressuring sealing new pump according to claim 1 is characterized in that: " O " type ring recess, the central axis O of central through bore (41) are with in central through bore (41) lining on the described pump housing (4)
2Central axis O with off-centre half hole (42)
1Between eccentric distance t, crescent shape suction inlet (47) UNICOM on the bottom plane (40) import (46), another crescent shape row mouthful (48) UNICOM on the bottom plane (40) outlet (49), outlet (49) have a bypass in push back runner (9) and lead to the back side of compensating disc (6) and the space between the eccentric end cap (5).
3. a kind of three-way engagement inner pressuring sealing new pump according to claim 1, it is characterized in that: described rotor shaft (1) comprises three five equilibrium cambered surface active sections (13) and does not have keyway shaft part (11) and shaft with keyway section (12), the work inner end of three five equilibrium cambered surface active sections (13) is pasting bottom plane (40), and the work exterior edge face of three five equilibrium cambered surface active sections (13) is being pasted by the horizontal frontal plane of compensating disc (6).
4. a kind of three-way engagement inner pressuring sealing new pump according to claim 1, it is characterized in that: describedly comprise complete section of four five equilibrium cambered surfaces from rotor (2), the width of full section both ends of the surface is equal with the size of the both ends of the surface width of three five equilibrium cambered surface active sections (13) consistent.
5. a kind of three-way engagement inner pressuring sealing new pump according to claim 1, it is characterized in that: eccentric distance t between the central axis of band " O " the type ring recess through hole (61) on the compensating disc (6) and the central axis of band " O " type ring recess cylindrical (62), the eccentric positioning hole (67) of compensating disc (6) is slidingly matched with locating stud (7).
6. a kind of three-way engagement inner pressuring sealing new pump according to claim 1 is characterized in that: the central axis O of described rotor shaft (1)
2With central axis O from rotor (2)
1Between eccentric distance t, three five equilibrium cambered surface active sections (13) of rotor shaft (1) and between four five equilibrium cambered surfaces of rotor (2), rotation, being meshing with each other, produce three point of contact synchronously, cross point of contact and form three axially extended sealing strips, in conjunction with the horizontal frontal plane of bottom plane (40) and compensating disc (6), constitute A, B and three working spaces of C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156793.2A CN102182678B (en) | 2011-06-01 | 2011-06-01 | A kind of three line engagement inner pressuring sealing pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110156793.2A CN102182678B (en) | 2011-06-01 | 2011-06-01 | A kind of three line engagement inner pressuring sealing pumps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102182678A true CN102182678A (en) | 2011-09-14 |
| CN102182678B CN102182678B (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110156793.2A Expired - Fee Related CN102182678B (en) | 2011-06-01 | 2011-06-01 | A kind of three line engagement inner pressuring sealing pumps |
Country Status (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2494341A1 (en) * | 1980-11-19 | 1982-05-21 | Orgeval Jean Claude | Rotary piston engine or pump - has three lobed rotor and four lobed stator with moving roller valves for gas flow |
| EP0618366A1 (en) * | 1993-04-02 | 1994-10-05 | Alcatel Cit | Volumetric machine with planetary movement |
| CN2821225Y (en) * | 2005-08-17 | 2006-09-27 | 吴永祥 | Rotor pump |
| CN201228632Y (en) * | 2008-06-24 | 2009-04-29 | 上海师范大学 | Inside engaged cycloidal rotor pump |
| CN202194821U (en) * | 2011-06-01 | 2012-04-18 | 张意立 | Novel pump adopting three-line meshing and internal-pressure sealing |
-
2011
- 2011-06-01 CN CN201110156793.2A patent/CN102182678B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2494341A1 (en) * | 1980-11-19 | 1982-05-21 | Orgeval Jean Claude | Rotary piston engine or pump - has three lobed rotor and four lobed stator with moving roller valves for gas flow |
| EP0618366A1 (en) * | 1993-04-02 | 1994-10-05 | Alcatel Cit | Volumetric machine with planetary movement |
| CN2821225Y (en) * | 2005-08-17 | 2006-09-27 | 吴永祥 | Rotor pump |
| CN201228632Y (en) * | 2008-06-24 | 2009-04-29 | 上海师范大学 | Inside engaged cycloidal rotor pump |
| CN202194821U (en) * | 2011-06-01 | 2012-04-18 | 张意立 | Novel pump adopting three-line meshing and internal-pressure sealing |
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| Publication number | Publication date |
|---|---|
| CN102182678B (en) | 2016-04-27 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Shaofang Inventor before: Zhang Yili |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170329 Address after: 414000 Hunan city of Yueyang province tea village Kang District Economic and Technological Development Zone Xiang new flag group Patentee after: HUNAN BALING KILN AND FURNACE ENERGY SAVING CO., LTD. Address before: 325000 Zhejiang Province, Lucheng District, South Gate Street, building, room No. 1, building, Room 303 Patentee before: Zhang Yili |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20170601 |