CN107327531A - Shock absorber for compressor vibration damping - Google Patents
Shock absorber for compressor vibration damping Download PDFInfo
- Publication number
- CN107327531A CN107327531A CN201710774864.2A CN201710774864A CN107327531A CN 107327531 A CN107327531 A CN 107327531A CN 201710774864 A CN201710774864 A CN 201710774864A CN 107327531 A CN107327531 A CN 107327531A
- Authority
- CN
- China
- Prior art keywords
- rectangular housing
- plate
- receiving space
- shock absorber
- vibration damping
- 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.)
- Pending
Links
- 238000013016 damping Methods 0.000 title claims abstract description 43
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 23
- 230000035939 shock Effects 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 235000012773 waffles Nutrition 0.000 claims description 15
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical group [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000001629 suppression Effects 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229910001051 Magnalium Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/01—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand
- F16F7/015—Vibration-dampers; Shock-absorbers using friction between loose particles, e.g. sand the particles being spherical, cylindrical or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a kind of shock absorber for compressor vibration damping, including rectangular housing and the multiple steel balls being arranged in rectangular housing for being damped by phase mutual friction and collision realization；The demixing plate for rectangular housing inner space to be divided into upper and lower receiving space is also set up in the rectangular housing, upper and lower receiving space is provided with steel ball and respectively the vibration difference damping vibration attenuation to different frequency；The vibration absorber does not change the planform of original compressor, and good endurance, reliability are high, be easy for adverse circumstances.The vibrational energy of absorbable wider frequency rate, and still have good effectiveness in vibration suppression in the case of other damping failures, it can apply on all kinds of model compressors, with higher overall economic efficiency.
Description
Technical field
The present invention relates to vibration damping field, and in particular to a kind of shock absorber for compressor vibration damping.
Background technology
Under conditions of modern naval warfare, the power and destiny of naval vessels lie in its Stealth Fighter, and people naval is from birth
Just using naval vessels as a kind of strategic weapon at the beginning of life, therefore vibration and noise reducing is the emphasis and difficult point that warship design is developed all the time,
Low noise high pressure air compressor machine is as one of Important Auxiliary equipment of naval vessel turbine, and vibration and noise reducing is also imperative；And in the prior art
It is complicated to the vibration-proof structure of High Pressure Air Compressor, and the vibration effectiveness in vibration suppression for wide-band vibration frequency is poor, and then greatly shadow
The suitable environment of compressor is rung.
Accordingly, it would be desirable to which a kind of shock absorber for compressor vibration damping, can shake to low-noise electric High Pressure Air Compressor under-chassis
Dynamic acceleration performance indications are controlled, and to the effective vibration damping of compressor, substantially reduce impact of the compressor to hull, it is ensured that compression
The applicability of machine is wide.
The content of the invention
In view of this, the purpose of the present invention is to overcome defect of the prior art there is provided the vibration damping for compressor vibration damping
Low-noise electric High Pressure Air Compressor under-chassis vibration acceleration performance indications can be controlled by device, to the effective vibration damping of compressor,
Substantially reduce impact of the compressor to hull, it is ensured that the applicability of compressor is wide.
The shock absorber for compressor vibration damping of the present invention, including rectangular housing and be arranged in rectangular housing for passing through
Multiple steel balls of damping are realized in phase mutual friction and collision；Also set up in the rectangular housing for rectangular housing inner space to be divided
The demixing plate of upper and lower receiving space is divided into, upper and lower receiving space is provided with steel ball and respectively the vibration difference to different frequency
Damping vibration attenuation.
Further, it is provided with the upper and lower receiving space for making steel ball be uniformly distributed in upper and lower receiving space
Separate baffle plate.
Further, the cut-off baffle plate is the waffle slab formed by multiple transverse slats and stringer board vertical interlaced.
Further, the horizontal side of the top surface of the rectangular housing extends to form right-angle prismatic post along short transverse, described straight
The bottom right angle side of angle triangular prism section triangle and the width of rectangular housing are square consistent, the height and rectangular housing of the triangle
Short transverse it is consistent, a length of 295-305mm of the rectangular housing, a width of 205-215mm, the minimum altitude of upper receiving space
For 21-25mm, the bottom right angle length of side of the triangle is 155-160mm, a height of 44-48mm of triangle；The waffle slab
For the inner space form-fit of prism in the height and right angle of nine grids plate and waffle slab；Steel ball in the upper receiving space
A diameter of 19-21mm, the quality of steel ball and be 5-6kg in upper receiving space, the rectangular housing, demixing plate and waffle slab are equal
It is 0.8-1.2mm for the top surface cover sheet thickness of magnesium alloy, and rectangular housing, rectangular housing is except the plate thickness of top surface cover plate
2.8-3.2mm, the thickness of demixing plate is 2.8-3.2mm, and the thickness of waffle slab is 1.3-1.7mm.
Further, the height of the lower receiving space is a diameter of of the steel ball in 18-20mm, the upper receiving space
The quality of steel ball and for 4-5kg in 15-17mm, upper receiving space.
Further, the demixing plate be rectangular slab and it is conformal be arranged in the middle of box-packed housing, the two of the rectangular slab
The two ends of transverse sides extend transversely and are bent to form four connection journal stirrups respectively, and the demixing plate passes through this four connection branch
Ear is fixedly connected with box-packed housing circumferential side wall.
Further, in addition to for rectangular housing to be fixed on to the connecting plate of compressor, the connecting plate be two pieces and point
Longitudinal two sides of rectangular housing are not fixed on, and the connecting plate section is the side that " L " shape and its bottom plate are attached at rectangular housing
Wall simultaneously rivets fixation.
Further, two block connecting plates are set in longitudinal single side face of the rectangular housing, and two pieces of connecting plates are to lean against
The mode of the back of the body is fixed on longitudinal single side face of rectangular housing；The connecting plate is magnesium-aluminum alloy plate of the thickness in 1.3-1.6mm.
Further, the demixing plate upper surface is applied with quality point, and lower surface applies lower quality point.
Further, the quality of the upper and lower quality point is respectively M3 and M4, and the M3 is 5.9-6Kg, and M4 is 3.9-4Kg.
The beneficial effects of the invention are as follows：A kind of shock absorber for compressor vibration damping disclosed by the invention, can be to low noise
Sound driven high voltage air compressor machine under-chassis vibration acceleration performance indications are controlled, and to the effective vibration damping of compressor, substantially reduce compression
Impact of the machine to hull, it is ensured that the applicability of compressor is wide；The vibration absorber does not change the planform of original compressor, durable
Good, reliability is high, be easy for adverse circumstances for property.The vibrational energy of absorbable wider frequency rate, and in the feelings of other damping failures
Still there is good effectiveness in vibration suppression under condition, can apply on all kinds of model compressors, with higher overall economic efficiency.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation inside the present invention.
Embodiment
Fig. 1 is the structural representation of the present invention, and Fig. 2 is the structural representation inside the present invention, as illustrated, the present embodiment
In the shock absorber for compressor vibration damping；Be used for including rectangular housing 1 and being arranged in rectangular housing 1 by phase mutual friction and
Multiple steel balls of damping are realized in collision；Also set up in the rectangular housing 1 for the inner space of rectangular housing 1 to be divided into,
The demixing plate 2 of lower receiving space, upper and lower receiving space, which is provided with steel ball and the vibration of different frequency is damped respectively respectively, to be subtracted
Shake；The damping frequency of the steel ball of the upper sheaf space is generally located on basic frequency 25Hz or so, and the steel ball of lower layer space subtracts
Vibration frequency is traditionally arranged to be the intermediate frequency vibration frequency more than 100Hz, plays to play the dominant frequency and intermediate frequency of compressor and plays suction
Bestir oneself use, low-noise electric High Pressure Air Compressor under-chassis vibration acceleration performance indications can be controlled, it is effective to compressor
Vibration damping, substantially reduces impact of the compressor to hull, it is ensured that the applicability of compressor is wide；The vibration absorber does not change original compression
The planform of machine, good endurance, reliability are high, be easy for adverse circumstances.The vibrational energy of absorbable wider frequency rate, and
Still there is good effectiveness in vibration suppression in the case of other damping failures, can apply on all kinds of model compressors, with higher comprehensive
Close economic benefit.
In the present embodiment, it is provided with the upper and lower receiving space empty for making steel ball be uniformly distributed in upper and lower receiving
Between cut-off baffle plate 3；The steel ball is steel ball, by separating the setting of baffle plate 3, is effectively moved beneficial to ensureing that each steel ball has
Simultaneously realize effectively friction and collide in space, it is ensured that damping is good.
In the present embodiment, the cut-off baffle plate 3 is the waffle slab formed by multiple transverse slats and stringer board vertical interlaced；The net
Grid in panel is uniformly distributed and is rectangle, rectangular a length of longitudinal direction along rectangular housing 1, beneficial between steel ball
Generation effective damping.
In the present embodiment, the horizontal side of top surface of the rectangular housing 1 extends to form right-angle prismatic post 1a along short transverse,
The bottom right angle side of the right-angle prismatic post 1a section triangles is square consistent with the width of rectangular housing 1, the height of the triangle
It is consistent with the short transverse of rectangular housing 1, a length of 295-305mm of the rectangular housing 1, preferably 300mm, a width of 205-
215mm, preferably 210mm, the minimum altitude of upper receiving space is 21-25mm, and preferably 23mm, the bottom of the triangle is straight
The arm of angle a length of 155-160mm, preferably 157mm, a height of 44-48mm of triangle, preferably 46mm；The waffle slab is nine palaces
The inner space form-fit of prism in panel and the height and right angle of waffle slab；The diameter of steel ball in the upper receiving space
For 19-21mm, preferably 20mm, the quality of steel ball and be 5-6kg, preferably 5.5kg, the rectangular housing in upper receiving space
1st, demixing plate 2 and waffle slab are magnesium alloy, and the top surface cover sheet thickness of rectangular housing 1 is 0.8-1.2mm, preferably 1mm,
Rectangular housing 1 is 2.8-3.2mm, preferably 3mm except the plate thickness of top surface cover plate, and the thickness of demixing plate 2 is 2.8-3.2mm,
Preferably 3mm, the thickness of waffle slab is 1.3-1.7mm, preferably 1.5mm；The height of the lower receiving space is 18-20mm,
Steel ball in a diameter of 15-17mm of steel ball in preferably 20mm, the upper receiving space, preferably 16mm, upper receiving space
Quality and for 4-5kg, preferably 4.5kg, the demixing plate 2 be rectangular slab and it is conformal be arranged in the middle of box-packed housing, institute
The two ends for stating two transverse sides of rectangular slab extend transversely and are bent to form four connection journal stirrups, the demixing plate 2 respectively
It is fixedly connected by this four connection journal stirrups with box-packed housing circumferential side wall；Four connection journal stirrups lead to box-packed housing circumferential side wall
Cross soket head cap screw to be fixedly connected, the Support Position of four connection journal stirrups of demixing plate 2 is beneficial to control upper and lower receiving space institute shape
Into different frequency vibration-proof structure, it is ensured that the damping absorptivity of 20 hertz to 30 hertz of vibration damping basic frequency is up to more than 70%,
And it is with strong points more than 100 hertz, damping absorptivity is up to more than 80%, and integral shock-absorbing efficiency high, control is accurate, while structure
Simply, it is easy for installation.
In the present embodiment, in addition to for rectangular housing 1 to be fixed on to the connecting plate 4 of compressor, the connecting plate 4 is two
Block and the longitudinal two sides for being individually fixed in rectangular housing 1, the section of connecting plate 4 is " L " shape and its bottom plate is attached at rectangle
The side wall of housing 1 simultaneously rivets fixation；The side plate of the connecting plate 4 is provided with the connecting hole being connected with compressor, passes through the structure
Connecting plate 4, beneficial to ensure vibration absorber can be stably fixed on compressor, it is to avoid the deformation of connecting plate 4 and influence damping frequency.
In the present embodiment, two block connecting plates 4, two pieces of connecting plates 4 are set in longitudinal single side face of the rectangular housing 1
To be fixed on longitudinal single side face of rectangular housing 1 in back-to-back fashion；The connecting plate 4 is magnalium of the thickness in 1.3-1.6mm
Alloy sheets, preferably 1.5mm, further improve the stability that vibration absorber is fixed, it is ensured that damping frequency is difficult change.
In the present embodiment, the upper surface of demixing plate 2 is applied with quality point, and lower surface applies lower quality point；It is described upper and lower
The quality of quality point is respectively M3 and M4, and the M3 is 5.9-6Kg, and preferably 5.95Kg, M4 is 3.9-4Kg, is preferably
3.95Kg；Further to improve damping efficiency, while ensureing compact conformation；Setting quality point is prior art, is no longer gone to live in the household of one's in-laws on getting married herein
State.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (10)
1. a kind of shock absorber for compressor vibration damping, it is characterised in that：Used including rectangular housing and being arranged in rectangular housing
In multiple steel balls that damping is realized by phase mutual friction and collision；Also set up in the rectangular housing for by inside rectangular housing
Space is divided into the demixing plate of upper and lower receiving space, and upper and lower receiving space is provided with steel ball and different frequency is shaken respectively
Dynamic damping vibration attenuation respectively.
2. the shock absorber according to claim 1 for compressor vibration damping, it is characterised in that：The upper and lower receiving space
Inside it is provided with the cut-off baffle plate for making steel ball be uniformly distributed in upper and lower receiving space.
3. the shock absorber according to claim 2 for compressor vibration damping, it is characterised in that：The cut-off baffle plate is by many
The waffle slab of individual transverse slat and stringer board vertical interlaced formation.
4. the shock absorber according to claim 3 for compressor vibration damping, it is characterised in that：The top surface of the rectangular housing
Horizontal side extends to form right-angle prismatic post along short transverse, the bottom right angle side of the right-angle prismatic post section triangle and square
The width of shape housing is square consistent, and the height of the triangle is consistent with the short transverse of rectangular housing, the rectangular housing it is a length of
295-305mm, a width of 205-215mm, the minimum altitude of upper receiving space is 21-25mm, the bottom right angle side of the triangle
A length of 155-160mm, a height of 44-48mm of triangle；The waffle slab is in nine grids plate and the height and right angle of waffle slab
The inner space form-fit of prism；Steel ball in a diameter of 19-21mm of steel ball in the upper receiving space, upper receiving space
Quality and for 5-6kg, the rectangular housing, demixing plate and waffle slab are magnesium alloy, and the top surface cover plate of rectangular housing
Thickness is 0.8-1.2mm, and rectangular housing is 2.8-3.2mm except the plate thickness of top surface cover plate, and the thickness of demixing plate is 2.8-
3.2mm, the thickness of waffle slab is 1.3-1.7mm.
5. the shock absorber according to claim 4 for compressor vibration damping, it is characterised in that：The height of the lower receiving space
Spend for 18-20mm, a diameter of 15-17mm of the steel ball in the upper receiving space, the quality of steel ball and be in upper receiving space
4-5kg。
6. the shock absorber according to claim 5 for compressor vibration damping, it is characterised in that：The demixing plate is rectangle
Plate and it is conformal be arranged in the middle of box-packed housing, the two ends of two transverse sides of the rectangular slab extend transversely and bent respectively
Four connection journal stirrups are formed, the demixing plate is fixedly connected by this four connection journal stirrups with box-packed housing circumferential side wall.
7. the shock absorber according to claim 6 for compressor vibration damping, it is characterised in that：Also include being used for Rectangular shell
Body is fixed on the connecting plate of compressor, and the connecting plate is two pieces and is individually fixed in longitudinal two sides of rectangular housing, described
Connecting plate section is " L " shape and its bottom plate is attached at the side wall of rectangular housing and rivets fixation.
8. the shock absorber according to claim 7 for compressor vibration damping, it is characterised in that：The longitudinal direction of the rectangular housing
Two block connecting plates are set in single side face, and two pieces of connecting plates are unilateral with the longitudinal direction for being fixed on rectangular housing in back-to-back fashion
Face；The connecting plate is magnesium-aluminum alloy plate of the thickness in 1.3-1.6mm.
9. the shock absorber according to claim 1 for compressor vibration damping, it is characterised in that：Apply the demixing plate upper surface
Plus quality point, lower surface applies lower quality point.
10. the shock absorber according to claim 9 for compressor vibration damping, it is characterised in that：The upper and lower quality point
Quality is respectively M3 and M4, and the M3 is 5.9-6Kg, and M4 is 3.9-4Kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710774864.2A CN107327531A (en) | 2017-08-31 | 2017-08-31 | Shock absorber for compressor vibration damping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710774864.2A CN107327531A (en) | 2017-08-31 | 2017-08-31 | Shock absorber for compressor vibration damping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107327531A true CN107327531A (en) | 2017-11-07 |
Family
ID=60204696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710774864.2A Pending CN107327531A (en) | 2017-08-31 | 2017-08-31 | Shock absorber for compressor vibration damping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107327531A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030098389A1 (en) * | 2000-04-12 | 2003-05-29 | Dussac Marc Francis Vincent | Damping structure and applications |
| JP2007040493A (en) * | 2005-08-05 | 2007-02-15 | Kurashiki Kako Co Ltd | Transport vibration control equipment |
| CN101597925A (en) * | 2009-06-19 | 2009-12-09 | 北京工业大学 | Built-in particle type tuning and frictional impact energy-consumption damper |
| US20120024645A1 (en) * | 2009-04-09 | 2012-02-02 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Damping structure |
| CN202493618U (en) * | 2012-03-05 | 2012-10-17 | 北京工业大学 | Partition type lamination particle damper |
| JP2015175431A (en) * | 2014-03-14 | 2015-10-05 | 帝人株式会社 | Resin-made shock absorbing member, and vehicle component |
| CN105332442A (en) * | 2015-11-05 | 2016-02-17 | 同济大学 | Particle damper with nonlinear rigidity |
| CN105804261A (en) * | 2016-03-21 | 2016-07-27 | 同济大学 | Suspended type novel material damper |
| CN205475805U (en) * | 2016-03-21 | 2016-08-17 | 同济大学 | Novel harmonious mass damper of material granule |
| CN106522400A (en) * | 2016-12-22 | 2017-03-22 | 浙江建科减震科技有限公司 | Multi threshold value control model of tuned mass damper |
| CN207161589U (en) * | 2017-08-31 | 2018-03-30 | 重庆远风机械有限公司 | Vibration reduction device for compressor |
-
2017
- 2017-08-31 CN CN201710774864.2A patent/CN107327531A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030098389A1 (en) * | 2000-04-12 | 2003-05-29 | Dussac Marc Francis Vincent | Damping structure and applications |
| JP2007040493A (en) * | 2005-08-05 | 2007-02-15 | Kurashiki Kako Co Ltd | Transport vibration control equipment |
| US20120024645A1 (en) * | 2009-04-09 | 2012-02-02 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Damping structure |
| CN101597925A (en) * | 2009-06-19 | 2009-12-09 | 北京工业大学 | Built-in particle type tuning and frictional impact energy-consumption damper |
| CN202493618U (en) * | 2012-03-05 | 2012-10-17 | 北京工业大学 | Partition type lamination particle damper |
| JP2015175431A (en) * | 2014-03-14 | 2015-10-05 | 帝人株式会社 | Resin-made shock absorbing member, and vehicle component |
| CN105332442A (en) * | 2015-11-05 | 2016-02-17 | 同济大学 | Particle damper with nonlinear rigidity |
| CN105804261A (en) * | 2016-03-21 | 2016-07-27 | 同济大学 | Suspended type novel material damper |
| CN205475805U (en) * | 2016-03-21 | 2016-08-17 | 同济大学 | Novel harmonious mass damper of material granule |
| CN106522400A (en) * | 2016-12-22 | 2017-03-22 | 浙江建科减震科技有限公司 | Multi threshold value control model of tuned mass damper |
| CN207161589U (en) * | 2017-08-31 | 2018-03-30 | 重庆远风机械有限公司 | Vibration reduction device for compressor |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 404000 Chongqing Wanzhou economic and Technological Development Zone, Kowloon Park, No. 486 Jing Kai Road (Wanzhou Jing Kai District) Applicant after: CHINA SHIPBUILDING INDUSTRY GROUP HENGYUAN TECHNOLOGY CO.,LTD. Address before: No. 1111, No. five bridge, Chongqing City, Wanzhou District, Chongqing Applicant before: CHONGQING YUANFENG MACHINERY CO.,LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171107 |