CN202149024U - Inner-engaged gear pump and gap filling component - Google Patents
Inner-engaged gear pump and gap filling component Download PDFInfo
- Publication number
- CN202149024U CN202149024U CN201120192876U CN201120192876U CN202149024U CN 202149024 U CN202149024 U CN 202149024U CN 201120192876 U CN201120192876 U CN 201120192876U CN 201120192876 U CN201120192876 U CN 201120192876U CN 202149024 U CN202149024 U CN 202149024U
- Authority
- CN
- China
- Prior art keywords
- calking
- positive
- bluff bit
- gap filling
- cylinder axis
- 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
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 18
- 238000007789 sealing Methods 0.000 abstract description 17
- 239000007788 liquid Substances 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0007—Radial sealings for working fluid
- F04C15/0019—Radial sealing elements specially adapted for intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/101—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with a crescent-shaped filler element, located between the inner and outer intermeshing members
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model discloses an inner-engaged gear pump which comprises a gear ring used for inner engaging, a pinion engaged with partial teeth part of the gear ring, and a pump body used for installing the gear ring for inner engaging and the pinion, wherein an annular space narrowing gradually is formed between the gear ring and the teeth top round part of the pinion, a gap filling component is arranged in the annular space and is formed by a gap filling main piece and a gap filling auxiliary piece matched with the gap filling main piece, and one end of the gap filling auxiliary piece is movably connected with the gap filling main piece. The inner-engaged gear pump has the following advantages: set pressure requirement is achieved by a group of gap filling components with double axes, the gap filling component has the absolute functions of bidirection and angle guarantee, pressure returned from the outlet end pushes the gap filling main piece and the gap filling auxiliary piece with double axes in the gap filling component to two sides and angles respectively to achieve the optimal pressure maintaining state, and the sealing effect is better when the pressure is higher.
Description
[technical field]
The utility model relates to a kind of crescent gear pump, especially a kind of crescent gear pump and shimming assembly with two dead axle pressurize calking copper groups.
[background technique]
Crescent gear pump has no entrap phenomenon, carries steady, advantages such as efficient is high, noise is little, long service life.Be widely used in Newtonian liquid or non Newtonian liquid in the industries such as transfer oil, chemical industry, coating, dyestuff, food, grease, medicine; Carry the kind of liquid can be by lightweight, volatile liquid, until big media of viscosity such as heavy, thickness even semisolid liquid, its range of viscosities that is suitable for can reach 0.2-1000000cp.
Existing crescent gear pump with movable swing link with the high and low pressure chamber separately; And radially forming pressure compensation; Form several gapless sealings in making between external tooth tooth top and the swing link, axially moving compensating disc then guarantees the excellent sealing of axial clearance, makes the internal leakage of this pump minimize.Though the crescent gear pump of this structure has excellent sealing effect, internal leakage is still inevitable.
In order to improve said structure; Germany BOSCH the application; Getting into China national stage publication number is CN101828037A; Patent name is the Chinese invention patent application of crescent gear pump, and provide that a kind of two side faces in said filler member are provided with one by rubber-like perisporium radially, and said perisporium is because its crooking ability based on self elastic force is close to small gear or gear ring by the tooth top of its covering.Improve the compact sealing effect between the interior external tooth tooth top through resilient perisporium.Though this structure good sealing effect, the rubber-like perisporium is not wear-resistant, and working life is short, thereby influences whole crescent gear pump working life, and this is that the user is never receptible.Therefore, be necessary existing crescent gear pump is improved.
[model utility content]
The purpose of the utility model is to overcome the deficiency that above-described existing technology exists, and a kind of two-way opening and the crescent gear pump of the pressurize of angle open seals, reliable and stable and long service life that have is provided.
Another purpose of the utility model provides a kind of two-way open and angle is opened the shimming assembly of pressure function that have.
For achieving the above object; The technological scheme of the utility model is: crescent gear pump; Comprise a gear ring that meshes in being used for, small gear, the gear ring of a said interior engagement of installation and the pump housing of small gear that meshes with the part tooth portion of said gear ring; Form an annular space that narrows down gradually between the top circle portion of said gear ring and small gear, be provided with shimming assembly in the said annular space, said shimming assembly is made up of calking positive and the calking bluff bit that matches with said calking positive; One end of said calking bluff bit and said calking positive flexibly connect, and are integrally formed structure.
Said calking positive and the calking bluff bit surface of unifying side that matches is provided with a minimum groove, is used for through pressure calking positive and calking bluff bit being opened each other, to play the pressurize effect of positive confinement.
Said shimming assembly be ", " shape in the Chinese symbol, said calking bluff bit is arranged on the protruding curved portions of said calking positive.
Blunt of said calking body is provided with axis hole, and the calking body is fixed in the said pump housing through the stationary axle that inserts in the axis hole.
The joint that said calking bluff bit is connected with the calking positive is a cylinder axis, and said calking positive is provided with and the circular groove of the corresponding circumference of said cylinder axis greater than semicircle, and said cylinder axis inserts in the said circular groove, and the calking bluff bit can rotate around circular groove and open.
Leave the gap between said circular groove and the cylinder axis so that the calking bluff bit can be on the calking positive vertical opening.
Be provided with the support axis hole in the cylinder axis of said calking bluff bit, described support axis hole is inserted with rotating shaft and is connected with the said pump housing, form outside the stationary axle, and another stationary axle, thus form two dead axle structures.
Shimming assembly is made up of calking positive and the calking bluff bit that matches with said calking positive, and an end of said calking bluff bit and said calking positive flexibly connect, and are integrally formed structure; Said calking positive and the calking bluff bit surface of unifying side that matches is provided with a minimum groove, is used for through pressure calking positive and calking bluff bit being opened each other, to play the pressurize effect of positive confinement.
Said shimming assembly be ", " shape in the Chinese symbol, said calking bluff bit is arranged on the protruding curved portions of said calking positive; Blunt of said calking body is provided with axis hole.
The joint that said calking bluff bit is connected with the calking positive is a cylinder axis, and said calking positive is provided with and the circular groove of the corresponding circumference of said cylinder axis greater than semicircle, and said cylinder axis inserts in the said circular groove, and the calking bluff bit can rotate around circular groove and open.
Leave the gap between said circular groove and the cylinder axis so that the calking bluff bit can be on the calking positive vertical opening.
Be provided with the support axis hole in the cylinder axis of said calking bluff bit, described support axis hole is inserted with rotating shaft and is connected with the said pump housing, form outside the stationary axle, and another stationary axle, thus form two dead axle structures.
Compared with prior art, the utility model has following advantage: reach the pressure requirement that configures through the above-described one group shimming assembly with twin shaft heart, shimming assembly is the design of Construction integration; The absolute function that two-way and angle pressurize are arranged; When returning the pressure that comes by outlet end B, can push calking bluff bit that has two dead axle hearts in the shimming assembly and calking positive open reach best packing state to both sides and angle respectively, when pressure is bigger; Sealing effect can be better; And not only have the two-way function of opening, also can have angle and open effect, all keep-up pressure more in theory and the reality.
[description of drawings]
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
Fig. 1 is the stereogram of the utility model crescent gear pump;
Fig. 2 is the utility model crescent gear pump cross-sectional structure schematic representation;
Fig. 3 is the utility model crescent gear pump longitudinal sectional view;
Fig. 4 is the utility model shimming assembly cross section view;
Fig. 5 is the utility model shimming assembly open cross section view that makes progress;
Fig. 6 rotates open cross section view for the utility model shimming assembly;
Fig. 7 is the erection drawing of the utility model crescent gear pump.
[embodiment]
Below in conjunction with accompanying drawing and specific embodiment the utility model is carried out detailed explanation.
Referring to Fig. 1-3, crescent gear pump comprises that is used for the pump housing 14 that 13, one 12, one of small gears with the part tooth portion engagement of said gear ring 13 of the interior gear ring that meshes are installed said interior gear ring that meshes 13 and small gear 12.On the said small gear 12 fixed base wheel shafts, through axle bearing in the said pump housing 14.Said small gear 12 is an arranged off-centre with respect to gear ring 13, interdependent relative tooth portion engagement in small gear 12 and the gear ring 13.Form a sickle-shaped annular space that narrows down gradually--pump chamber between the top circle portion of gear ring 13 and small gear 12, in said pump chamber, be provided with adaptive with a side periphery profile phase of said pump chamber basically shimming assembly 9.Referring to Fig. 2, arrow is a sense of rotation, and then said shimming assembly 9 is located at a clockwise side of said annular space.The effect of said shimming assembly 9 is through in the top circle zone, contacting with tooth top formation face being sealed by the teeth groove of its covering, these teeth groove in axial both sides respectively by the end face of the pump housing 14 and the pressure plate and sealing gasket 7 sealings of two respective shapes that are arranged on the pump case.
Referring to Fig. 4; Said shimming assembly 9 is made up of calking positive 91 and the calking bluff bit 92 that matches with said calking positive 91; The integrative-structure that one end of said calking bluff bit 92 and said calking positive 91 flexibly connect forms one and can open or rotate open integral body each other.Said calking positive 91 and calking bluff bit 92 surface of unify side that matches is provided with a minimum groove 93, is used for through pressure calking positive 91 and calking bluff bit 92 being opened each other, to play the pressurize effect of positive confinement.Said shimming assembly 9 be comma () shape in the Chinese symbol, said calking bluff bit 92 is arranged on the protruding curved portions of said calking positive 91.Blunt of calking positive 91 is provided with axis hole 96, is fixed in the said pump housing 14 through the stationary axle 10 that inserts in the axis hole 96.The joint that said calking bluff bit 92 is connected with calking positive 91 is a cylinder axis; Said calking positive 91 is provided with and the circular groove of the corresponding circumference of said cylinder axis greater than semicircle; Said cylinder axis inserts in the said circular groove, and calking bluff bit 92 can rotate around circular groove and open.Leave the gap between said circular groove and the cylinder axis so that calking bluff bit 92 can be on calking positive 91 vertical opening.Be provided with in the cylinder axis of said calking bluff bit 92 and support axis hole 95, described support axis hole 95 is inserted with rotating shaft 11 and is connected with the said pump housing 14, form outside the stationary axle 10, and another stationary axle, thus form two dead axle structures.Shown in Fig. 5 the calking positive 91 of shimming assembly 9 and the state of calking bluff bit 92 vertical opening behind pressurized are shown, can the amount of playing sealing pressurize effect also, the direction of arrow is that calking positive 91 opens direction with calking bluff bit 92.Said Fig. 6 illustrates, and goes out the calking positive 91 and calking bluff bit 92 open at an angle state behind pressurized of shimming assembly 9, can behind vertical opening, can also open at an angle, plays the pressurize effect of double seal, and wherein arrow is open direction.
The utility model is reached the pressure requirement that configures through the above-described one group shimming assembly 9 with twin shaft heart; Shimming assembly 9 is designs of Construction integration, and the absolute function of two-way and angle pressurize is arranged, when being returned the pressure that comes by outlet end B (entrance point is A); Can push calking bluff bit that has two dead axle hearts in the shimming assembly 9 92 and calking positive 91 open reach best packing state to both sides and angle respectively; When pressure was bigger, sealing effect can be better, and not only have the two-way function of opening; Also can have angle and open effect, all keep-up pressure more in theory and the reality.
Referring to Fig. 7, the described crescent gear pump of the utility model also comprises the front pump cover 5 and protecgulum 1 that is installed in the pump housing 14 front ends, is provided with oil sealing 2, axle bush 4 and seal ring 3 between said protecgulum 1 and the front pump cover 5.The sealing gasket that is provided with pressure plate 8 and two respective shapes 7 sealings between the said pump housing 14 and the front pump cover 5.In addition, also be provided with solid pin 6 between the said pump housing 14 and the front pump cover 5.The rear pump cover 15 and the bonnet 16 of the said pump housing 14 rear ends are provided with axle bush 4 and seal ring 3 between said bonnet 16 and the rear pump cover 15.The sealing gasket that is provided with pressure plate 8 and two respective shapes 7 sealings between the said pump housing 14 and the rear pump cover 15.Also be provided with solid pin 6 between the said pump housing 14 and the rear pump cover 15 outward.The said pump housing 14 is fastening through screw with protecgulum 1, front pump cover 5, rear pump cover 15 and bonnet 16.
A kind of shimming assembly 9; Referring to Fig. 4; Said shimming assembly 9 is made up of calking positive 91 and the calking bluff bit 92 that matches with said calking positive 91, and an end of said calking bluff bit 92 and said calking positive 91 flexibly connect, and form one and can open or rotate open integral body each other.Said calking positive 91 and calking bluff bit 92 surface of unify side that matches is provided with a minimum groove 93, is used for through pressure calking positive 91 and calking bluff bit 92 being opened each other, to play the pressurize effect of positive confinement.Said shimming assembly 9 be comma () shape in the Chinese symbol, said calking bluff bit 92 is arranged on the protruding curved portions of said calking positive 91.Blunt of calking positive 91 is provided with axis hole 96, is fixed in the said pump housing 14 through the stationary axle 10 that inserts in the axis hole 96.The joint that said calking bluff bit 92 is connected with calking positive 91 is a cylinder axis; Said calking positive 91 is provided with and the circular groove of the corresponding circumference of said cylinder axis greater than semicircle; Said cylinder axis inserts in the said circular groove, and calking bluff bit 92 can rotate around circular groove and open.Leave the gap between said circular groove and the cylinder axis so that calking bluff bit 92 can be on calking positive 91 vertical opening.Be provided with in the cylinder axis of said calking bluff bit 92 and support axis hole 95, described support axis hole 95 is inserted with rotating shaft 11 and is connected with the said pump housing 14, form outside the stationary axle 10, and another stationary axle, thus form two dead axle structures.Shown in Fig. 5 the calking positive 91 of shimming assembly 9 and the state of calking bluff bit 92 vertical opening behind pressurized are shown, can the amount of playing sealing pressurize effect also, the direction of arrow is that calking positive 91 opens direction with calking bluff bit 92.Said Fig. 6 illustrates, and goes out the calking positive 91 and calking bluff bit 92 open at an angle state behind pressurized of shimming assembly 9, can behind vertical opening, can also open at an angle, plays the pressurize effect of double seal, and wherein arrow is open direction.The action effect of said shimming assembly 9 and principle are as previously discussed.
Although the utility model is to describe with reference to specific embodiment, this description does not also mean that the restriction of the utility model formation.With reference to the description of the utility model, other of the disclosed embodiments change, and all can expect to those skilled in the art, and this variation should belong in the affiliated claim institute restricted portion.
Claims (9)
1. crescent gear pump; Comprise a gear ring that meshes in being used for, small gear, the gear ring of a said interior engagement of installation and the pump housing of small gear that meshes with the part tooth portion of said gear ring; Form an annular space that narrows down gradually between the top circle portion of said gear ring and small gear; Be provided with shimming assembly in the said annular space; It is characterized in that said shimming assembly is made up of calking positive and the calking bluff bit that matches with said calking positive, an end of said calking bluff bit and said calking positive flexibly connect.
2. according to the described crescent gear pump of claim 1, it is characterized in that said calking positive and the calking bluff bit surface of unifying side that matches is provided with a minimum groove.
3. according to the described crescent gear pump of claim 2, it is characterized in that, said shimming assembly be ", " shape in the Chinese symbol, said calking bluff bit is arranged on the protruding curved portions of said calking positive; Blunt of said calking body is provided with axis hole, and the calking body is fixed in the said pump housing through the stationary axle that inserts in the axis hole.
4. according to claim 2 or 3 described crescent gear pumps; It is characterized in that; The joint that said calking bluff bit is connected with the calking positive is a cylinder axis, and said calking positive is provided with and the circular groove of the corresponding circumference of said cylinder axis greater than semicircle, and said cylinder axis inserts in the said circular groove.
5. according to the described crescent gear pump of claim 4, it is characterized in that, leave the gap between said circular groove and the cylinder axis so that the calking bluff bit can be on the calking positive vertical opening.
6. according to the described crescent gear pump of claim 1, it is characterized in that, be provided with the support axis hole in the cylinder axis of said calking bluff bit, described support axis hole is inserted with rotating shaft and is connected with the said pump housing.
7. shimming assembly is characterized in that, is made up of calking positive and the calking bluff bit that matches with said calking positive, and an end of said calking bluff bit and said calking positive flexibly connect; Said calking positive and the calking bluff bit surface of unifying side that matches is provided with a minimum groove.
8. according to the described shimming assembly of claim 7; It is characterized in that; The joint that said calking bluff bit is connected with the calking positive is a cylinder axis, and said calking positive is provided with and the circular groove of the corresponding circumference of said cylinder axis greater than semicircle, and said cylinder axis inserts in the said circular groove; Leave the gap between said circular groove and the cylinder axis.
9. according to the described shimming assembly of claim 8, it is characterized in that, be provided with the support axis hole in the cylinder axis of said calking bluff bit, described support axis hole is inserted with rotating shaft and is connected with the said pump housing.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120192876U CN202149024U (en) | 2011-06-09 | 2011-06-09 | Inner-engaged gear pump and gap filling component |
| TW100216757U TWM431228U (en) | 2011-06-09 | 2011-09-07 | Internal gear pump |
| PCT/CN2012/000778 WO2012167614A1 (en) | 2011-06-09 | 2012-06-08 | Internal gear pump and shimming assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120192876U CN202149024U (en) | 2011-06-09 | 2011-06-09 | Inner-engaged gear pump and gap filling component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202149024U true CN202149024U (en) | 2012-02-22 |
Family
ID=45590085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120192876U Expired - Fee Related CN202149024U (en) | 2011-06-09 | 2011-06-09 | Inner-engaged gear pump and gap filling component |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN202149024U (en) |
| TW (1) | TWM431228U (en) |
| WO (1) | WO2012167614A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012167614A1 (en) * | 2011-06-09 | 2012-12-13 | Hsiao Hai-Chin | Internal gear pump and shimming assembly |
| CN103827494A (en) * | 2011-09-26 | 2014-05-28 | 罗伯特·博世有限公司 | Internal gear pump |
| CN104454511A (en) * | 2014-11-13 | 2015-03-25 | 福州大学 | Internally-engaged gear pump applicable to high pressure and large flow |
| CN111828307A (en) * | 2020-06-15 | 2020-10-27 | 南京威孚金宁有限公司 | Pump body structure of internal gear pump and assembly process thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10058883A1 (en) * | 1999-12-08 | 2001-07-12 | Luk Lamellen & Kupplungsbau | Geared pump with hollow gear contains sickle-shaped space here filled out by first and second fillers in one or two pieces and on opposite sides of interposed filler pin. |
| CN1412439A (en) * | 2002-09-28 | 2003-04-23 | 宁波华液机器制造有限公司 | Internal gear pump |
| DE10334954A1 (en) * | 2003-07-31 | 2005-02-24 | Voith Turbo Gmbh & Co. Kg | hydraulic pump |
| CN201144799Y (en) * | 2007-10-31 | 2008-11-05 | 宁波华液电液控制工程股份有限公司 | Internal gear pump |
| CN202149024U (en) * | 2011-06-09 | 2012-02-22 | 萧锡钦 | Inner-engaged gear pump and gap filling component |
-
2011
- 2011-06-09 CN CN201120192876U patent/CN202149024U/en not_active Expired - Fee Related
- 2011-09-07 TW TW100216757U patent/TWM431228U/en not_active IP Right Cessation
-
2012
- 2012-06-08 WO PCT/CN2012/000778 patent/WO2012167614A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012167614A1 (en) * | 2011-06-09 | 2012-12-13 | Hsiao Hai-Chin | Internal gear pump and shimming assembly |
| CN103827494A (en) * | 2011-09-26 | 2014-05-28 | 罗伯特·博世有限公司 | Internal gear pump |
| CN103827494B (en) * | 2011-09-26 | 2016-05-25 | 罗伯特·博世有限公司 | Internal gear pump |
| CN104454511A (en) * | 2014-11-13 | 2015-03-25 | 福州大学 | Internally-engaged gear pump applicable to high pressure and large flow |
| CN104454511B (en) * | 2014-11-13 | 2016-09-07 | 福州大学 | A kind of crescent gear pump being applicable to high-pressure high-flow |
| CN111828307A (en) * | 2020-06-15 | 2020-10-27 | 南京威孚金宁有限公司 | Pump body structure of internal gear pump and assembly process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM431228U (en) | 2012-06-11 |
| WO2012167614A1 (en) | 2012-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU WINMOST PRECISION MACHINERY CO., LTD. Free format text: FORMER OWNER: XIAO XIQIN Effective date: 20121010 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20121010 Address after: 511450 Guangdong city of Guangzhou province Panyu District Shi Ji Zhen Xin Ling Lu Cao Gang Street No. 12 Patentee after: Guangzhou Winmost Precision Machinery. Co., Ltd. Address before: 511450 Guangdong city of Guangzhou province Panyu District Shi Ji Zhen Xin Ling Lu Cao Gang Street No. 12 Patentee before: Xiao Xiqin |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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