KR101964505B1 - Diaphragm valve and method for assembling same - Google Patents

Diaphragm valve and method for assembling same Download PDF

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Publication number
KR101964505B1
KR101964505B1 KR1020167026342A KR20167026342A KR101964505B1 KR 101964505 B1 KR101964505 B1 KR 101964505B1 KR 1020167026342 A KR1020167026342 A KR 1020167026342A KR 20167026342 A KR20167026342 A KR 20167026342A KR 101964505 B1 KR101964505 B1 KR 101964505B1
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KR
South Korea
Prior art keywords
stem
diaphragm
nut
handle
diaphragm valve
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KR1020167026342A
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Korean (ko)
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KR20160119244A (en
Inventor
다카유키 히구치
히사토시 아카모토
게이고 고바야시
마사히코 소가오
Original Assignee
가부시키가이샤 후지킨
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    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/12—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm
    • F16K7/14—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat
    • F16K7/16—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with flat, dished, or bowl-shaped diaphragm arranged to be deformed against a flat seat the diaphragm being mechanically actuated, e.g. by screw-spindle or cam
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0236—Diaphragm cut-off apparatus
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • F16K35/04—Means to prevent accidental or unauthorised actuation yieldingly resisting the actuation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

A diaphragm valve prevents overload from being applied to the diaphragm by excessive tightening, and a method of assembling such a diaphragm valve. The female screw member 18 is screwed to the upper end of the male screw portion 11 provided on the stem 3. [ The female screw member 18 contacts the top end of the bonnet 5 to prevent the stem 3 from moving further downward when the stem 3 reaches a suitable closed position.

Description

[0001] DESCRIPTION [0002] DIAPHRAGM VALVE AND METHOD FOR ASSEMBLING SAME [0003]

The present invention relates to a diaphragm valve and a method for assembling the same.

BACKGROUND ART [0002] A diaphragm valve is known as a valve used in processes such as bio, semiconductor and the like (Patent Document 1). An example of such a diaphragm valve is shown in Fig.

The diaphragm valve 31 includes a main body 32 having fluid passages 32a and 32b, a stem 33 movable up and down with respect to the main body 32, A diaphragm 34 which opens and closes the fluid passages 32a and 32 of the stem 32 and a bonnet 35 provided above the main body 32 to guide the stem 33 up and down, A diaphragm urging portion 36 attached to press the diaphragm 34 downward and a handle 37 rotated to move the stem 33 up and down to the open position and the closed position.

4, the stem 33 is located at a lower position, and the diaphragm 34 is positioned between the fluid inflow passage 32a and the fluid outflow passage 32b, whereby the fluid passage closed state is obtained.

Patent Document 1: Japanese Patent Laid-Open Publication No. 2013-117241

It is possible to further tighten the handle 37 by rotating the diaphragm 34 in the fluid passage closed state of the diaphragm 34 as shown in Fig. 4. As a result, an excessive load is applied to the diaphragm 34 by excessive tightening, ) May be damaged.

An object of the present invention is to provide a diaphragm valve that prevents an excessive load from being applied to a diaphragm by excessive tightening, and a method of assembling such a diaphragm valve.

A diaphragm valve according to the present invention includes a body having a fluid passage, a stem capable of moving up and down with respect to the body, a diaphragm for opening and closing the fluid passage of the body in accordance with the upward and downward movement of the stem, A diaphragm valve comprising: a guide bonnet; a diaphragm pressing part attached to a lower end of the stem to urge the diaphragm downward; and a handle rotated to move the stem up and down to an open position and a closed position, And the female screw member is brought into contact with the upper end of the bonnet to prevent the stem from moving further downward when the stem reaches the proper closing position.

The stem has an upper portion protruding upward from the bonnet, and a female screw member is screwed to the protruding portion. The female screw member screwed to the upper end of the male screw portion provided on the stem moves downward integrally with the stem when the stem moves downward. Then, when the stem moves downward by a predetermined amount, the lower surface of the female screw member contacts the upper surface of the bonnet. By matching this contact position with the position at which the stem has reached the appropriate closed position, the stem is prevented from moving beyond the design position and downward. As a result, the diaphragm is not subjected to a load more than the design, and the diaphragm is prevented from being excessively loaded by excessive tightening, thereby greatly improving the durability of the diaphragm.

A diaphragm which opens and closes the fluid passage of the main body in accordance with the upward and downward movement of the stem; a bonnet which is provided on the upper side of the main body and guides the stem so as to be movable up and down; A diaphragm pressing portion attached to press the diaphragm downward, and a handle rotated to move the stem up and down to the closed position are known.

In the diaphragm valve of the present invention, when the known diaphragm valve is used as a reference, the length of the stem becomes longer, thereby extending the male screw portion, and the female screw member is screwed to the extended portion of the male screw portion. That is, it is possible to change the diaphragm valve having the over-tightening prevention function to the diaphragm valve having the over-tightening prevention function by merely adding the female screw member and changing the stem.

The diaphragm is made of, for example, a diaphragm made of a fluororesin (for example, PTFE) having a quadrangular shape in plan view and a diaphragm made of rubber (for example, butyl rubber) circular in plan view provided in close contact with the upper surface of the fluororesin diaphragm. But is not limited thereto.

The female screw member is, for example, a commercially available nut (one or two), but is not limited thereto.

The female screw member is screwed to the male screw portion of the stem so that the lower surface of the female screw member comes into contact with the upper surface of the bonnet at a position where the stem has reached the proper closing position. Then, the handle is fixed to the upper end of the stem. In the state after the handle is attached, the female screw member is covered with the handle so that the position of the female screw member does not change due to contact of objects or hands during use.

The female screw member preferably comprises a first nut tightened with a relatively small torque and a second nut superimposed on the first nut and tightened with a relatively large torque.

The lower nut is used to define the lower position of the stem, and the upper nut prevents the lower nut from being loosened. By using two nuts as the female screw member, it is possible to reliably prevent the female screw member from being loosened.

An annular convex portion having a tapered inner peripheral surface having a larger diameter toward the tip side is provided on the overlapping surface of either one of the nuts and an annular concave portion fitted to the convex portion is provided on the overlapping surface of the other nut .

Two nuts are used, and the convex portion and the concave portion are fitted between the nuts, thereby preventing the female screw member from loosening more reliably. As the female screw member, for example, a loosening nut called Hard Lockn (registered trademark) can be used. By using such loosening preventing nut, the loosening preventing function can be enhanced.

A method of assembling a diaphragm valve according to the present invention is a method of assembling a diaphragm valve (using two nuts as a female screw member) by removing a handle from a stem in a state where the stem is positioned at a predetermined position, Loosening the first nut and the second nut and then rotating the stem to the closed position and then rotating the first nut until it contacts the bonnet and then tightening the second nut, And is attached to the upper end of the stem.

By doing so, the diaphragm valve can be obtained which can set the handle to an intermediate opening degree (an arbitrary opening degree) and prevent the excessive steering of the handle.

According to the diaphragm valve of the present invention, it is prevented that the stem moves downward beyond the design position, and thus, the diaphragm is prevented from being excessively loaded, thereby greatly improving the durability of the diaphragm.

Fig. 1 is a longitudinal sectional view showing an embodiment of a diaphragm valve according to the present invention, showing a passage closed state. Fig.
Fig. 2 is a longitudinal sectional view showing the passage open state of the diaphragm valve of Fig. 1; Fig.
3 is an enlarged vertical cross-sectional view of a main portion showing a state in which the diaphragm valve according to the present invention is assembled.
Fig. 4 is a longitudinal sectional view showing a conventional diaphragm valve, showing a passage closed state.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the following description, the upper and lower and left and right are referred to as the upper and lower and left and right of the drawing. Upper and lower and right and left are convenient ones. The diaphragm valve may be attached upside down or upside down from this standard.

1 and 2 show an embodiment of a diaphragm valve according to the present invention. Fig. 1 shows the passage closed state, and Fig. 2 shows the passage opened state.

The diaphragm valve 1 includes a main body 2 having a fluid inflow passage 2a and a fluid outflow passage 2b, a stem 3 which is movable up and down with respect to the main body 2, A diaphragm 4 that opens and closes between the fluid inflow passage 2a and the fluid outflow passage 2b in accordance with the shape of the fluid inflow passage 2a and the fluid outflow passage 2b, A diaphragm urging part 6 attached to the lower end of the stem 3 and a handle 7 rotated to move the stem 3 up and down to the open position and the closed position.

The main body 2 is formed into a cylindrical shape extending in the right and left direction and has a circular through hole 2c facing upward in the central portion. The fluid inflow passage 2a into which the fluid flows from the left side and the fluid outflow passage 2b through which the fluid flows out from the right side are both straight and their inner ends open in the circular through hole 2c.

The stem 3 has a male screw portion 11 and a stepped shaft portion 12 leading to the lower end of the male screw portion 11. And an attaching portion 13 connected to the upper end of the male screw portion 11 and fixed to the handle 7 is provided.

The diaphragm 4 is composed of a diaphragm 14 made of PTFE which is rectangular when seen in plan view and a diaphragm 15 made of butyl rubber having a circular shape when viewed from a plane provided in close contact with the upper surface of the diaphragm made of PTFE. The central portion of the diaphragm 4 protrudes downward and contacts the bottom surface of the main body 2 in the passage closed state shown in Fig. 1 so that the fluid flowing from the fluid inflow passage 2a to the fluid outflow passage 2b are closed. Thereby, the main body 2 does not have protrusions (wear parts) for supporting the diaphragm 4, and the passage in the main body 2 is straight.

The bonnet 5 has a small diameter cylindrical portion 16 on the upper side and a large diameter cylindrical portion 16 integrally formed on the lower end of the small diameter cylindrical portion 16 and having an inner diameter and an outer diameter both larger than the small diameter cylindrical portion 16, (17).

A flange portion 17a is provided at the lower end portion of the large diameter cylindrical portion 17. A peripheral edge of the diaphragm 4 is sandwiched between the flange portion 17a and the edge of the circular through hole 2c of the main body 2 The flange portion 17a and the main body 2 are coupled by a male screw member (not shown).

A female screw portion 16a is provided on the inner periphery of the small diameter cylindrical portion 16 and a male screw portion 11 of the stem 3 is screwed to the female screw portion 16a. The male threaded portion 11 of the stem 3 has a portion 11a protruding upward from the upper end of the bonnet 5 and a female thread member 18 (not shown) is provided near the upper end of the upwardly projecting portion 11a. ) Are screwed together.

The female screw member 18 is composed of a lower first nut 19 and a second upper nut 20 which are overlapped with each other.

An annular convex portion 21 having a tapered inner peripheral surface 21a having a larger diameter toward the lower side (tip end side) is provided on the lower surface (overlapping surface) of the second nut 20. [ The outer circumferential surface of the convex portion 21 has the same shape as the outer circumferential surface of the other portion of the second nut 20. The convex portion 21 may be provided with one or a plurality of slits.

An annular recessed portion 22b having a tapered inner peripheral surface 22a whose diameter gradually decreases toward the upper side and fitted to the annular convex portion 21 of the second nut 20 is formed on the upper surface (superposed surface) of the first nut 19 22 are provided.

The diaphragm pressing portion 6 is cylindrical, and an internally threaded portion 6a is formed on the inner peripheral surface of the upper portion. A cylindrical male thread 23 having a flange is fitted to the large diameter portion of the lower side of the stepped shaft portion 12 of the stem 3. This female threaded portion 23 is engaged with the female threaded portion 6a of the diaphragm pressing portion 6, Respectively. Accordingly, the diaphragm urging portion 6 is fixed to the stem 3 with the central portion of the diaphragm 4 pressed downward.

An upper portion of the suspending bracket 24 is supported at a lower portion of the diaphragm urging portion 6 and a lower end portion of the suspending bracket 24 is embedded in a central portion of the diaphragm 4. [ Accordingly, the central portion of the diaphragm 4 moves up and down integrally as the diaphragm pressing portion 6 moves up and down.

The diaphragm pressing portion 6 has an outer peripheral edge 6b for urging the middle portion (a portion between the center portion and the outer peripheral edge) of the diaphragm 4 downwardly in the passage closed state shown in Fig. The outer peripheral edge 6b moves upward in the passage open state shown in Fig. 2, and does not have a function of urging the middle portion of the diaphragm 4 downward.

The handle 7 has a cylindrical cover portion 7a covering the upper portion of the bonnet 5. The upper portion of the bonnet 5 and the male screw portion 11 and the female screw member 18 of the stem 3 are covered by the cover portion 7a of the handle 7 and are not exposed to the outside.

A cylindrical opening and closing display member 25 is provided on the top of the bonnet 5 so as to be positioned between the cover 7a of the handle 7 and the opening / The lower end position of the opening and closing display member 25 and the lower end position of the cover portion 7a of the handle 7 are at the same position in the passage closed state shown in Fig.

1, the diaphragm pressing portion 6 presses the diaphragm 4 downward, so that the diaphragm 4 is deformed in a shape conforming to the lower surface of the diaphragm pressing portion 6 do. The central portion of the diaphragm pressing portion 6 is integrated with the diaphragm 4 by the suspending metal fittings 24 while the middle portion of the diaphragm 4 is deformable when the diaphragm pressing portion 6 moves upward .

1, when the handle 7 is rotated in the opening direction, the stem 3 is moved upward and the diaphragm 4, which has been in contact with the bottom surface of the main body 2, And the flow path of the fluid from the fluid inflow passage 2a to the fluid outflow passage 2b, that is, the flow path without the ash, is formed in the main body 2. The diaphragm pressing portion 6 is moved upward so that the diaphragm 4 is elastically deformed to deform the intermediate portion of the diaphragm 4 such that the flange portion 17a of the bonnet 5 and the circular portion The annular portion between the outer peripheral edge sandwiched between the edges of the through hole 2c and the central portion where the movement is blocked by the suspender metal 24) is deformed so as to return to the upward convex shape when it is in the free state.

2, the opening / closing display member 25 is exposed from the lower end position of the cover portion 7a of the handle 7 by the upward movement of the handle 7, so that the opening / .

When the diaphragm valve 1 is assembled, the stem 3 to which the diaphragm 4 and the diaphragm pressing portion 6 are attached is screwed to the bonnet 5 and the bonnet 5 is engaged with the main body 2 do. The female screw member 18 is screwed to the portion 11a protruding upward from the upper end of the bonnet 5 of the male screw portion 11 of the stem 3 before the handle 7 is attached. Thereafter, the assembling is completed by fitting the opening / closing display member 25 to the upper portion of the bonnet 5 and fixing the handle 7 to the attaching portion 13 of the stem 3.

In order to appropriately position the female screw member 18 (the first nut 19 and the second nut 20) and fix the handle 7 in a proper position, the assembly of the diaphragm valve 1 .

1. Turn the handle 7 to place the stem 3 at a predetermined position and set the intermediate opening degree (the state shown in Fig. 2).

2. Remove handle (7).

3. Loosen the first nut (19) and the second nut (20).

4. Rotate the stem (3) to the closed position. This state is shown in Fig. 3 (a). In order to do this, 4-1. The attachment portion 13 of the stem 3 may be turned by a torque wrench, and 4-2. The handle 7 may be attached to rotate the handle 7 to rotate the stem 3. In the latter case, after rotating the stem 3, the handle 7 is removed again.

5. Rotate the first nut (19) until it contacts the bonnet (5). This state is shown in Fig. 3 (b). This rotation is done by hand (hand tightening).

6. Tighten the second nut (20). This state is shown in Fig. 3 (c). This tightening is performed more strongly than tightening of the first nut 19 using a torque wrench. That is, the first nut 19 is tightened with a relatively small torque, and the second nut 20 is tightened with a relatively large torque. The relative rotation between the first nut 19 and the second nut 20 is suppressed and the first nut 19 and the second nut 20 are always moved integrally with the stem 3 up and down.

7. Attach handle (7).

Thus, the assembling operation is completed, and then the handle 7 is turned to perform any operation. At this time, when the diaphragm valve 1 shown in Fig. 1 is closed, excessive tightening is prevented because the female screw member 18 functions as a stopper even if the handle 7 is strongly tightened. The handle 7 can be set to the intermediate opening degree (arbitrary opening degree) by performing the above setting (tightening of the first nut 19 and the second nut 20) at the intermediate opening of the diaphragm valve 1, In addition, the diaphragm valve 1 which can prevent the excessive tightening of the handle 7 can be obtained.

As the female screw member 18, a loosening nut called hard lock nut (registered trademark) can be used. By using such a loosening preventing nut, the loosening preventing function by the engagement of the tapered surfaces 21a and 22a is exerted. The tapered surface 21a of the convex portion 21 is slightly eccentric to the screw hole of the nut 19 and the tapered surface 22a of the concave portion 22 is tapered So that the release preventing function is further enhanced. The female screw member 18 is not limited to a hard lock nut (registered trademark).

The configuration of preventing excessive tightening using the female screw member 18 can be adapted to various diaphragm valves. The configuration of the main body, the stem, the diaphragm, the bonnet, the diaphragm pressing portion, and the handle may be variously changed.

According to the present invention, since the durability of the diaphragm of the diaphragm valve is greatly improved, the performance of the diaphragm valve can be improved.

(1): diaphragm valve, (2): main body, (3): stem, (4): diaphragm, (5): bonnet, (6) (21): convex portion, (21a): inner circumferential surface, (22): concave portion, (21)

Claims (4)

A diaphragm which opens and closes the fluid passage of the main body in accordance with the upward and downward movement of the stem, a bonnet which is provided on the upper side of the main body and guides the stem so as to be movable up and down, A diaphragm valve comprising: a diaphragm pressing portion attached to press a diaphragm downward; and a handle rotated to move the stem up and down to an open position and a closed position,
The handle has a cylindrical cover portion covering the upper portion of the bonnet. The female screw member is screwed to the upper end of the male screw portion provided on the stem without interfering with the cylindrical cover portion of the handle,
The female screw member is composed of a lower nut tightened with a relatively small torque and an upper nut superimposed on the lower nut and tightened with a relatively large torque,
The stem moves upward and downward integrally with the rotation of the handle so that the female screw member moves up and down integrally with the stem so that when the stem reaches the proper closing position, the lower surface of the lower nut comes into contact with the upper end of the bonnet, To prevent the diaphragm valve from being opened. delete 2. The nut according to claim 1, characterized in that an annular convex portion having a tapered inner peripheral surface whose diameter increases toward the tip side is provided on the overlapping surface of either one of the nuts, and an annular concave portion Wherein the diaphragm valve is provided with a diaphragm valve. A method of assembling the diaphragm valve according to any one of claims 1 to 3,
The handle is removed from the stem with the stem in a predetermined position and then the lower nut and upper nut are released and then the stem is rotated to the closed position and then until the lower nut is in contact with the bonnet And then the upper nut is tightened, and in this state, the handle is attached to the upper end of the stem.
KR1020167026342A 2014-05-29 2015-05-19 Diaphragm valve and method for assembling same KR101964505B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JPJP-P-2014-111388 2014-05-29
JP2014111388A JP6410479B2 (en) 2014-05-29 2014-05-29 Diaphragm valve and assembling method thereof
PCT/JP2015/064260 WO2015182430A1 (en) 2014-05-29 2015-05-19 Diaphragm valve and method for assembling same

Publications (2)

Publication Number Publication Date
KR20160119244A KR20160119244A (en) 2016-10-12
KR101964505B1 true KR101964505B1 (en) 2019-04-01

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KR1020167026342A KR101964505B1 (en) 2014-05-29 2015-05-19 Diaphragm valve and method for assembling same

Country Status (6)

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JP (1) JP6410479B2 (en)
KR (1) KR101964505B1 (en)
CN (1) CN106415099B (en)
SG (1) SG11201608803WA (en)
TW (1) TWI665403B (en)
WO (1) WO2015182430A1 (en)

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WO2019026815A1 (en) * 2017-07-31 2019-02-07 株式会社フジキン Device for preventing excessive tightening of valve, and valve including same
US11073215B2 (en) * 2017-07-31 2021-07-27 Fujikin Incorporated Gas supply system
KR101957935B1 (en) 2017-10-16 2019-03-13 동아대학교 산학협력단 Diaphragm Valve Having Dual Disk
US11781659B2 (en) 2018-03-26 2023-10-10 Cytiva Sweden Ab Methods and systems for dual force valve actuation
CN113646562A (en) * 2019-03-29 2021-11-12 株式会社富士金 Diaphragm and diaphragm valve
CN110220027A (en) * 2019-05-29 2019-09-10 高邮市特种紧固件厂 A kind of valve gland nut of the valve with anti-loosening function

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Publication number Publication date
JP6410479B2 (en) 2018-10-24
TWI665403B (en) 2019-07-11
CN106415099A (en) 2017-02-15
TW201604461A (en) 2016-02-01
JP2015224765A (en) 2015-12-14
SG11201608803WA (en) 2016-11-29
KR20160119244A (en) 2016-10-12
CN106415099B (en) 2018-11-23
WO2015182430A1 (en) 2015-12-03

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