CN102536798B - A kind of compensation gear pump for internal-pressure passage - Google Patents
A kind of compensation gear pump for internal-pressure passage Download PDFInfo
- Publication number
- CN102536798B CN102536798B CN201110462600.6A CN201110462600A CN102536798B CN 102536798 B CN102536798 B CN 102536798B CN 201110462600 A CN201110462600 A CN 201110462600A CN 102536798 B CN102536798 B CN 102536798B
- Authority
- CN
- China
- Prior art keywords
- gear
- outer end
- end cap
- compensation dish
- face
- 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
- 238000005516 engineering process Methods 0.000 claims abstract description 7
- 230000007717 exclusion Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010008469 Chest discomfort Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 206010016766 flatulence Diseases 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Abstract
A kind of compensation gear pump for internal-pressure passage, including driving shaft, driven shaft, master gear, from gear, end face compensation dish, front outer end cap, head bolts, the pump housing, rear outer end cap, described master gear and from there being end face compensation dish between gear and front outer end cap, and on the described pump housing, have an intrinsic pressure path, one end of intrinsic pressure path connects compensation dish backside cavity, and the other end of intrinsic pressure path connects outlet.By means of interior pressure passageway in axial force produced by compensation dish backside cavity, the horizontal frontal plane making end face compensation dish is close to master gear and the side transverse plane from gear, master gear and the opposite side transverse plane from gear is forced to be close to the inner plane of rear outer end cap, constitute axial end wear-compensating clearance control technology, guarantee that gear pump is in high-efficiency operation all the time, novel, simple in construction, convenient manufacture, market application potential is huge.
Description
Technical field
The invention belongs to mechanical engineering field, International Classification of Patents is F04D non-varactor pump, relates to a kind of energy conversion rotary volume pump converting mechanical energy into fluid pressure energy, particularly relates to a kind of compensation gear pump for internal-pressure passage.
Background technology
Rotary volume pump has the advantage that efficiency is high, but after all there is longtime running abrasion, its efficiency substantially reduces, and causes the end face activity that main reason is that between high pressure chest and the low pressure chamber isolation of drawbacks described above could not play effectively sealing.The undersized easy flatulence of heat type of end face fit tolerance is stuck, and firmly end face fit tolerance is oversize, and after could not playing effectively sealing, and longtime running abrasion, sealing effectiveness is worse, it has to the production line that stops changes pumping unit, causes the biggest direct waste and indirect loss.
In all of rotary volume pump, vane pump is widely used in each industry and commerce field because of plurality of advantages such as its compact conformations.Perplexing its problem that always can not get effectively solving is: after long-term high-speed cruising, the necessarily abrasion of its end face can not get effective compensation.China's license notification number: CN1059019C pendulum rotary vane pump；China's license notification number: CN100374725C rotating vane pump；China's license notification number: CN1306162C medium-high pressure gear pump having asymmetric double-circular-arc gear shape；China's license notification number: the internal gear pump of CN1081750C band plastic housing；China's license notification number: CN101120175B and China's license notification number: a CN101403382B gear pump for micro-miniature turbojet engine etc., it is showed no method and the measure of practicable effective compensation, solves the end wear clearance control problem of rotary volume pump.
Summary of the invention
It is an object of the invention to provide a kind of compensation gear pump for internal-pressure passage, while effectively controlling radial clearance, it is also equipped with end wear and compensates isolation technology, to realize being in efficient external series gap controlled state between high pressure chest and low pressure chamber all the time, make up the deficiencies in the prior art, fill up rotary volume pump while effectively controlling radial clearance, be also equipped with end wear and compensate the technological gap of clearance control.
To achieve these goals, the present invention provides techniques below scheme: a kind of compensation gear pump for internal-pressure passage, including driving shaft, driven shaft, master gear, from gear, end face compensation dish, front outer end cap, head bolts, the pump housing, rear outer end cap, the both ends of the surface of the described pump housing are mutually perpendicular to double semicircle orifices, being stamped front outer end cap and rear outer end cap in both ends of the surface respectively, front outer end cap and rear outer end cap are fastened on the both ends of the surface of the described pump housing by head bolts；The protecgulum of described front outer end cap actively axis hole is on same axis with the bonnet actively axis hole of rear outer end cap；The protecgulum driven-shaft hole of described front outer end cap and the bonnet driven-shaft hole of rear outer end cap are on same axis, for being slidably matched between described driving shaft and protecgulum actively axis hole and bonnet actively axis hole；For being slidably matched between described driven shaft and protecgulum driven-shaft hole and bonnet driven-shaft hole, described master gear and driving shaft secure fit and between front outer end cap and rear outer end cap；Described from gear and driven shaft secure fit and between front outer end cap and rear outer end cap, described master gear engages each other with from gear；
External force is inputted by driving shaft keyway, the related master gear of driving shaft rotate, engaged with from gear by master gear, orders about from the rotation of gear opposite direction, master gear cylindrical and being all slidably matched with double semicircle orifices from top circle；
Described master gear and from gear when rotated by adjacent two tooth work spaces, constantly bring liquid working media into adjacent two tooth work spaces from suction inlet, after rotating semicircular week, exclusion to outlet；
One end of described interior pressure passageway connects compensation dish backside cavity, the other end of interior pressure passageway connects outlet, by means of interior pressure passageway in axial force produced by compensation dish backside cavity, the horizontal frontal plane making end face compensation dish is close to master gear and the side transverse plane from gear, force master gear and the opposite side transverse plane from gear to be close to the inner plane of rear outer end cap, constitute axial end wear-compensating clearance control technology；
Described master gear and from there being end face compensation dish between gear and front outer end cap, and on the described pump housing, have an interior pressure passageway, one end of interior pressure passageway connects compensation dish backside cavity, and the other end of interior pressure passageway connects outlet；
As improvement:
Described end face compensation dish has compensation dish actively axis hole to be on same axis with protecgulum actively axis hole and bonnet actively axis hole；Described end face compensation dish has compensation dish driven-shaft hole to be on same axis with protecgulum driven-shaft hole and bonnet driven-shaft hole；The double semicircle outline of the compensation dish of described end face compensation dish is slidably matched with double semicircle orifices；The described end face compensation dish back side also has compensation dish backside cavity；
The horizontal frontal plane of described end face compensation dish is towards described master gear and described from gear, described compensation dish driving shaft borehole jack enters the long exposed junction of described driving shaft, described compensation dish driven-shaft hole is inserted in the long exposed junction of described driven shaft, described master gear and the described side end face from gear against the inner plane of described rear outer end cap, described master gear and the described opposite side end face from gear and against the horizontal frontal plane of described end face compensation dish.
The invention has the beneficial effects as follows: by means of interior pressure passageway in axial force produced by compensation dish backside cavity, the horizontal frontal plane making end face compensation dish is close to master gear and the side transverse plane from gear, master gear and the opposite side transverse plane from gear is forced to be close to the inner plane of rear outer end cap, constitute axial end wear-compensating clearance control technology, guarantee that gear pump is in high-efficiency operation all the time, novel, simple in construction, convenient manufacture, market application potential is huge.
Accompanying drawing explanation
Fig. 1 is the present invention profile entirely through two main shafts；
Fig. 2 is the P-P sectional view in Fig. 1；
Fig. 3 is the rear side axonometric chart of the end face compensation dish 40 in Fig. 1；
Fig. 4 is the sectional view in Q-Q cross section in Fig. 1；
Fig. 5 is R-R step sectional view in Fig. 4.
Detailed description of the invention
In conjunction with the accompanying drawings and embodiments, structure and operation principle to the present invention elaborates further.
A kind of compensation gear pump for internal-pressure passage, including driving shaft 11, driven shaft 12, master gear 51, from gear 52, end face compensation dish 40, front outer end cap 60, head bolts 70, the pump housing 80, rear outer end cap 90, the both ends of the surface of the described pump housing 80 are with double
Semicircle orifice 85 is mutually perpendicular to, and both ends of the surface are stamped front outer end cap 60 and rear outer end cap 90 respectively, and front outer end cap 60 and rear outer end cap 90 are fastened on the both ends of the surface of the described pump housing 80 by head bolts 70；The protecgulum of described front outer end cap 60 actively axis hole 61 is on same axis with the bonnet actively axis hole 91 of rear outer end cap 90；The protecgulum driven-shaft hole 62 of described front outer end cap 60 is on same axis with the bonnet driven-shaft hole 92 of rear outer end cap 90, for being slidably matched between described driving shaft 11 and protecgulum actively axis hole 61 and bonnet actively axis hole 91；For being slidably matched between described driven shaft 12 and protecgulum driven-shaft hole 62 and bonnet driven-shaft hole 92, described master gear 51 and driving shaft 11 secure fit and between front outer end cap 60 and rear outer end cap 90；Described from gear 52 and driven shaft 12 secure fit and between front outer end cap 60 and rear outer end cap 90, described master gear 51 engages each other with from gear 52, as improvement: described master gear 51 and from there being end face compensation dish 40 between gear 52 and front outer end cap 60, and on the described pump housing 80, have an interior pressure passageway 30, one end of interior pressure passageway 30 connects compensation dish backside cavity 43, and the other end of interior pressure passageway 30 connects outlet 84.
As improving further: described end face compensation dish 40 has compensation dish actively axis hole 411 to be on same axis with protecgulum actively axis hole 61 and bonnet actively axis hole 91；Described end face compensation dish 40 has compensation dish driven-shaft hole 412 to be on same axis with protecgulum driven-shaft hole 62 and bonnet driven-shaft hole 92；The double semicircle outline 48 of the compensation dish of described end face compensation dish 40 is slidably matched with double semicircle orifices 85；Described end face compensation dish 40 back side also has compensation dish backside cavity 43.
Embodiment installation steps and work process are as follows.
Installation steps:
In FIG, embodiment selects master gear 51 to be 17 numbers of teeth, is also 17 numbers of teeth from gear 52.Head bolts 70 number of every side of the pump housing 80 is 6.
A side end face of the pump housing 80 places gasket seal, with 6 head bolts 70, rear end enclosing cover 90 is fixed on a side end face of the pump housing 80.
Driving shaft sealing ring 21 is put in the groove of bonnet actively axis hole 91；Driven shaft sealing ring 22 is put in the groove of bonnet driven-shaft hole 92.
By static for master gear 51 appropriate location being fixed on driving shaft 11；By from the static appropriate location being fixed on driven shaft 12 of gear 52.Again the short exposed junction of driving shaft 11 is inserted in bonnet actively axis hole 91；The short exposed junction of driven shaft 12 inserts in bonnet driven-shaft hole 92, and master gear 51 engages each other with from gear 52 so that master gear 51 and the side end face from gear 52 against the inner plane of rear outer end cap 90.
End face is compensated the horizontal frontal plane of dish 40 towards master gear 51 with from gear 52, compensation dish actively axis hole 411 is allowed to be inserted in the long exposed junction of driving shaft 11, compensation dish driven-shaft hole 412 is allowed to be inserted in the long exposed junction of driven shaft 12, making master gear 51 and the opposite side end face from gear 52 against the horizontal frontal plane of end face compensation dish 40, the double semicircle outline 48 of compensation dish is slidably matched with double semicircle orifices 85.
It is respectively put into driving shaft sealing ring 21 and driven shaft sealing ring 22 in the groove of protecgulum actively axis hole 61 and in the groove of protecgulum driven-shaft hole 62.
The opposite side end face of the pump housing 80 places gasket seal, with 6 head bolts 70, front outer end cap 60 is fixed on the opposite side end face of the pump housing 80, the long exposed junction making driving shaft 11 passes over protecgulum actively axis hole 61, and driving shaft keyway 17 is in outside front outer end cap 60；The long exposed junction of driven shaft 12 passes over protecgulum driven-shaft hole 62.Having an interior pressure passageway 30 on the pump housing 80, one end of interior pressure passageway 30 connects compensation dish backside cavity 43, and the other end of interior pressure passageway 30 connects outlet 84.
When work runs:
In fig. 2, external force is inputted by driving shaft keyway 17, the related master gear of driving shaft 11 51 rotate, engaged by master and slave gear, orders about and rotates from gear 52 opposite direction, master gear 51 cylindrical and being all slidably matched with double semicircle orifices from gear 52 cylindrical.
Master gear 51 and from gear 52 when rotated by adjacent two tooth work spaces, constantly bring liquid working media into adjacent two tooth work spaces from suction inlet 86, after rotating semicircular week, exclusion to outlet 84, go round and begin again.
One end of interior pressure passageway 30 connects compensation dish backside cavity 43, the other end of interior pressure passageway 30 connects outlet 84, by means of interior pressure passageway 30 in axial force produced by compensation dish backside cavity 43, the horizontal frontal plane making end face compensation dish 40 is close to master gear 51 and the side transverse plane from gear 52, master gear 51 and the opposite side transverse plane from gear 52 is forced to be close to the inner plane of rear outer end cap 90, constitute axial end wear-compensating clearance control technology, it is ensured that gear pump is in high-efficiency operation all the time.
Claims (1)
1. a compensation gear pump for internal-pressure passage, including driving shaft (11), driven shaft (12), master gear (51), from tooth
Wheel (52), end face compensation dish (40), front outer end cap (60), head bolts (70), the pump housing (80), rear outer end cap (90),
The both ends of the surface of the described pump housing (80) are mutually perpendicular to double semicircle orifices (85), and both ends of the surface are stamped front outer end cap (60) respectively
With rear outer end cap (90), front outer end cap (60) and rear outer end cap (90) are fastened on described pump by head bolts (70)
The both ends of the surface of body (80)；The protecgulum of described front outer end cap (60) actively axis hole (61) and rear outer end cap (90)
Bonnet actively axis hole (91) is on same axis；The protecgulum driven-shaft hole (62) of described front outer end cap (60) with
The bonnet driven-shaft hole (92) of rear outer end cap (90) is on same axis, described driving shaft (11) and protecgulum master
Moving axis hole (61) and
For being slidably matched between bonnet actively axis hole (91)；Described driven shaft (12) and protecgulum driven-shaft hole (62)
And for being slidably matched between bonnet driven-shaft hole (92), described master gear (51) is fixing with driving shaft (11) joins
Close and be positioned between front outer end cap (60) and rear outer end cap (90)；Described from gear (52) and driven shaft (12)
Secure fit and being positioned between front outer end cap (60) and rear outer end cap (90), described master gear (51) with from gear
(52) engage each other；
External force is inputted by driving shaft keyway (17), driving shaft (11) related master gear (51) rotate, by main tooth
Wheel (51) engages with from gear (52), orders about from the rotation of gear (52) opposite direction, master gear (51) cylindrical and from tooth
Wheel (52) cylindrical is all slidably matched with double semicircle orifices；
Described master gear (51) and from gear (52) when rotated by adjacent two tooth work spaces, constantly by liquid
State working media brings adjacent two tooth work spaces into from suction inlet (86), after rotating semicircular week, and exclusion to outlet (84)；
One end of described interior pressure passageway (30) connects compensation dish backside cavity (43), the other end of interior pressure passageway (30)
Connect outlet (84), by means of interior pressure passageway (30) in axial force produced by compensation dish backside cavity (43), make
The horizontal frontal plane obtaining end face compensation dish (40) is close to master gear (51) and the side transverse plane from gear (52), forces master
Gear (51) and the opposite side transverse plane from gear (52) are close to the inner plane of rear outer end cap (90), constitute axial end
Surface wear compensates clearance control technology；
Described master gear (51) and from there being end face compensation dish (40) between gear (52) and front outer end cap (60), and
Having an interior pressure passageway (30) on the described pump housing (80), it is empty that one end of interior pressure passageway (30) connects the compensation dish back side
Chamber (43), the other end of interior pressure passageway (30) connects outlet (84)；
It is characterized in that:
Described end face compensation dish (40) has compensation dish actively axis hole (411) and protecgulum actively axis hole (61) and bonnet
Actively axis hole (91) is on same axis；Described end face compensation dish (40) have compensation dish driven-shaft hole (412) with
Protecgulum driven-shaft hole (62) and bonnet driven-shaft hole (92) are on same axis；Described end face compensation dish (40)
The double semicircle outline (48) of compensation dish be slidably matched with pair semicircle orifices (85)；Described end face compensation dish (40) back of the body
Face also has compensation dish backside cavity (43)；
The horizontal frontal plane of described end face compensation dish (40) towards described master gear (51) and described from gear (52),
Described compensation dish actively axis hole (411) is inserted in the long exposed junction of described driving shaft (11), and described compensation dish is driven
Axis hole (412) is inserted in the long exposed junction of described driven shaft (12), described master gear (51) and described from gear
(52) a side end face againsts the inner plane of described rear outer end cap (90), described master gear (51) and described
The horizontal frontal plane of described end face compensation dish (40) is against from the opposite side end face of gear (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110462600.6A CN102536798B (en) | 2011-12-23 | 2011-12-23 | A kind of compensation gear pump for internal-pressure passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110462600.6A CN102536798B (en) | 2011-12-23 | 2011-12-23 | A kind of compensation gear pump for internal-pressure passage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536798A CN102536798A (en) | 2012-07-04 |
| CN102536798B true CN102536798B (en) | 2016-09-21 |
Family
ID=46344549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110462600.6A Expired - Fee Related CN102536798B (en) | 2011-12-23 | 2011-12-23 | A kind of compensation gear pump for internal-pressure passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102536798B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878073A (en) * | 2012-10-04 | 2013-01-16 | 张意立 | Gear pump |
| CN102926998B (en) * | 2012-10-28 | 2016-04-27 | 张意立 | A kind of internal and external threads Equilibrium gear pump |
| CN111173736B (en) * | 2019-08-30 | 2024-06-14 | 重庆红宇精密工业有限责任公司 | Gear pump with axial clearance compensation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2538979Y (en) * | 2002-03-22 | 2003-03-05 | 朱林森 | Improved gear pump |
| CN1412439A (en) * | 2002-09-28 | 2003-04-23 | 宁波华液机器制造有限公司 | Internal gear pump |
| CN2547912Y (en) * | 2002-06-25 | 2003-04-30 | 程安强 | Hydraulic gear pump with axial sealing compensation device |
| CN2864158Y (en) * | 2005-11-09 | 2007-01-31 | 胡远祥 | Improved gear oil pump |
| CN102182677A (en) * | 2011-06-01 | 2011-09-14 | 张意立 | Novel four-line meshed internal-pressure sealed pump |
| CN202370840U (en) * | 2011-12-23 | 2012-08-08 | 张意立 | Internal pressure channel compensated gear pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3660418B2 (en) * | 1996-02-07 | 2005-06-15 | 株式会社神戸製鋼所 | Gear pump for molten resin |
-
2011
- 2011-12-23 CN CN201110462600.6A patent/CN102536798B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2538979Y (en) * | 2002-03-22 | 2003-03-05 | 朱林森 | Improved gear pump |
| CN2547912Y (en) * | 2002-06-25 | 2003-04-30 | 程安强 | Hydraulic gear pump with axial sealing compensation device |
| CN1412439A (en) * | 2002-09-28 | 2003-04-23 | 宁波华液机器制造有限公司 | Internal gear pump |
| CN2864158Y (en) * | 2005-11-09 | 2007-01-31 | 胡远祥 | Improved gear oil pump |
| CN102182677A (en) * | 2011-06-01 | 2011-09-14 | 张意立 | Novel four-line meshed internal-pressure sealed pump |
| CN202370840U (en) * | 2011-12-23 | 2012-08-08 | 张意立 | Internal pressure channel compensated gear pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102536798A (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102536799B (en) | A kind of cylindrical-spring compensation gear pump | |
| CN202370840U (en) | Internal pressure channel compensated gear pump | |
| CN102536798B (en) | A kind of compensation gear pump for internal-pressure passage | |
| CN102536797B (en) | A kind of compensation gear pump for air pocket rings | |
| CN202370832U (en) | Internal pressure channel compensated inner and outer gear pump | |
| CN102536795A (en) | Cone spring compensation gear pump | |
| CN102536796B (en) | A kind of ring spoke spring compensation gear pump | |
| CN202370833U (en) | Internal and external gear pump compensated by cylindrical spring | |
| CN202391723U (en) | Air sag ring compensation gear pump | |
| CN102518587B (en) | Compensating internal-external gear pump for internal pressure passage | |
| CN202370829U (en) | Ring-shaped air bag compensating internal and external gear pump | |
| CN202391724U (en) | Cylindrical spring compensation gear pump | |
| CN202370839U (en) | Gear pump compensated by conical spring | |
| CN102418696B (en) | A kind of cylindrical spring compensation internal/external gear pump | |
| CN202370841U (en) | Ring spoke spring compensating gear pump | |
| CN102900667B (en) | A kind of two flange cylindrical spring gear pump | |
| CN202370830U (en) | Inner and outer gear pump with excircle spoke spring compensation function | |
| CN202370831U (en) | Pagoda-shaped spring compensated internal-external gear pump | |
| CN102434454B (en) | A kind of cylindrical spoke spring compensation internal-external gear pump | |
| CN102410212B (en) | Tower spring compensation inner and outer gear wheel pump | |
| CN202867205U (en) | Internal and external thread self balancing gear pump | |
| CN202867206U (en) | Dual-external-thread spoke spring gear pump | |
| CN202867201U (en) | Dual-flange cylindrical spring gear pump | |
| CN102562578B (en) | A kind of flat spring cylindrical spoke spring combined compensation double cavity vane pump | |
| CN102926998B (en) | A kind of internal and external threads Equilibrium gear pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Donglan Inventor after: Zhang Yili Inventor before: Zhang Yili |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160810 Address after: 325000 Zhejiang Wenzhou city Longwan District Puzhou Street Bu Cun Pujiang Bei Lu faculty Dormitory Room 202 Applicant after: Wenzhou Zhangheng Technology Service Co., Ltd. Address before: 325000 Zhejiang Province, Lucheng District, South Gate Street, building, room No. 1, building, Room 303 Applicant before: Zhang Yili |
|
| 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: Sun Donglan Inventor before: Zhang Yili |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170330 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 Wenzhou city Longwan District Puzhou Street Bu Cun Pujiang Bei Lu faculty Dormitory Room 202 Patentee before: Wenzhou Zhangheng Technology Service Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20171223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |