CN107743551B - Pump with loss prevention component - Google Patents
Pump with loss prevention component Download PDFInfo
- Publication number
- CN107743551B CN107743551B CN201680034027.XA CN201680034027A CN107743551B CN 107743551 B CN107743551 B CN 107743551B CN 201680034027 A CN201680034027 A CN 201680034027A CN 107743551 B CN107743551 B CN 107743551B
- Authority
- CN
- China
- Prior art keywords
- connecting elements
- pump
- drive shaft
- loss prevention
- prevention component
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
- F04D29/044—Arrangements for joining or assembling shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/20—Mounting rotors on shafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/84—Redundancy
Abstract
Pump (1) includes drive shaft (3)；Pump impeller (5), including the bushing (31) with hole (5)；The connector of pump impeller (5) and axis (3) includes connecting elements (41), connecting elements (41) includes the second end (45) in hole (39), connector (33) further includes supporting member (47), supporting member (47) is attached to the second end (45) of connecting elements (41), and against the one side of the bushing (31) opposite with drive shaft (3).Pump (1) also includes the loss prevention component (60) for being connected to connecting elements (41), and be inserted between drive shaft (3) and bushing (31), if shape is selected as connecting elements (41), breakage cannot pass through hole (39).
Description
Present invention relates in general to pumps, the in particular to main pump of nuclear reactor.
More particularly it relates to a type of pump, comprising:
Drive shaft, the drive shaft have rotary shaft,
Pump impeller, the pump impeller include the bushing positioned at the drive shaft extension, and the bushing has hole,
The connector of the pump impeller and the axis, the connector include connecting elements, and the connecting elements has first
End and the second end, the first end connects the drive shaft and the second end engaged in the hole with it is described
First end is opposite, and the connector further includes supporting member, and the boss member is connected to described the of the connecting elements
The one side of two ends and the bushing against the relatively described drive shaft.
The connector includes multiple associated joint members, and the pump impeller is fixed on described by each associated joint members
In drive shaft.
File FR 2649,165 describes such a pump.Connecting elements is stud, and supporting member is to be screwed in stud second
Nut on end.If stud is damaged, the second end of nut and stud becomes the mobile main body in major loop.The movement main body can
Destroy the core of other equipment, especially nuclear reactor.
Herein, the present invention is directed to propose a kind of safety-type pump more improved.
For this purpose, the present invention relates to a kind of pumps of aforementioned type, it is characterised in that the pump further includes loss prevention component, described anti-
Damage component is connected to the connecting elements and is inserted between the drive shaft and the bushing, if shape is chosen to connection structure
Part breakage cannot pass through the hole.
If the connecting elements is damaged, due to relevant connecting elements, pump impeller remains attached to the drive shaft.Root
According to its vibration characteristics, pump can be continued to run.The loss prevention component prevents the second end of the supporting member and the connecting elements
Become the mobile main body in major loop.The movement main body can be carried by the liquid flow generated along the pump.
The pump also has one or more following characteristics, individually or according to the possible combination of any technology considers:
The loss prevention component is the ring around the connecting elements；
The connecting elements has external screw thread, and the loss prevention component has the internal screw thread cooperated with the external screw thread；
The external screw thread is distributed in the second end of connecting elements, and the supporting member is the nut being screwed on external screw thread；
The connecting elements has shoulder, and the shoulder defines the loss prevention component axially along the connecting elements
Position backstop；
By generally frustoconical inner surface towards driving axis limit, the loss prevention component has big the bushing
The radial surface of conical butt, the shape conjugation of shape and the inner surface are caused, and is arranged as and the inner surface phase
It is right；
Between having between the inner surface of the bushing and the radial surface of the loss prevention component along the rotary shaft
Every the interval is less than 5mm's, it is preferable that the interval is less than 2mm；
The loss prevention component is not contacted with the bushing；
Pump impeller and the connector of drive shaft include that the loss prevention component is prevented to rotate relative to the connecting elements
Taper fixing screws；
The connecting elements is the stud extended along the rotary shaft of drive shaft；
The hole has the first straight section perpendicular to the rotary shaft, and loss prevention component has perpendicular to rotary shaft
Second straight section, second straight section are at least greater than first straight section in one direction.
According to the second aspect, the present invention relates to a kind of nuclear reactors, comprising:
Container, nuclear fuel assembly accommodate in the above-described container, and the container is at least one main refrigerant fluid entrance and extremely
Few main refrigerant fluid outlet；
Main refrigerant fluid outlet is connected to the main refrigerant fluid entrance, the major loop packet by least one major loop
Include the pump comprising features described above, it is ensured that circulation of the main refrigerant fluid along major loop.
Other features and advantages of the present invention will be showed from detailed description provided below.
- Fig. 1 is the perspective view of main pump according to the present invention, and part, which constructs, to be removed with the internal component of exposure pump；And
- Fig. 2 is the pump impeller of the pump of Fig. 1 and the partial sectional view of pump driveshaft end.
Pump 1 shown in Fig. 1 is the main pump of nuclear reactor.Main pump includes drive shaft 3 and pump impeller 5, and drive shaft 3 is around rotary shaft
X rotation.In the illustrated example, the rotary shaft X is vertical.
The pump further includes engine 7, and engine 7 is for driving the axis to rotate around axis X.
In the illustrated example, the rotation of axis 3 is guided by the upper bearing (metal) 9 for being located at 7 top of engine, and upper bearing (metal) 9 includes holding
The axially directed backstop 11 of row and the guidance bearing 13 for participating in radial directed.
The rotation of axis 3 is also guided by lower bearing 15, and lower bearing also assists in radial directed.Lower bearing 15 is located under engine 7
Side.
In general, the rotation of drive shaft 3 is also guided by hydrodynamic bearing 17, hydrodynamic bearing 17 is inserted into along drive shaft 3
Between lower bearing 15 and pump impeller 5.
In addition, axle envelope 19 ensures to seal between the main fluid and atmosphere of pressurization along drive shaft 3.
Wheel 5 is contained in spiral case 21, and spiral case includes inlet duct 23 and outlet conduit 25.
In the example shown, pump 1 is centrifugal, so that inlet duct 23 is located at 5 lower section of wheel, drive shaft 3 is prolonged
Extending portion point, and outlet conduit 25 is relative to drive shaft and pump impeller radial offset.
Engine 7 is fixed on spiral case 21 via the shell 27 around drive shaft 3.
5 cantilever of pump impeller is mounted on the lower end 29 of drive shaft.
Pump impeller 5 includes the bushing 31 positioned at 3 extension of drive shaft, and pump 1 then includes the connector 33 of pump impeller 5 and axis 3.
As shown in Fig. 2, bushing 31 is connected to the lower end 29 of axis 3 by connector 33.
Wheel 5 includes central inlet 35 and multiple radially outlets 37, and each radially outlet is connected by the channel limited in wheel 5
It is connected to central inlet 35.Entrance 35 is located at the axial continuation of bushing 31, opposite with the inlet duct 23 of spiral case.
As shown in Fig. 2, bushing 31 has hole 39.
It include connecting elements 41 by the connector 33 that pump impeller is connected to axis, connecting elements 41 has first end 43 and second
End 45, first end 43 are connected to drive shaft 3, and the second end 45 is bonded in hole 39.
Hole 39 is placed on rotary shaft X.
Connector 33 further includes supporting member (bearing member) 47, and supporting member 47 is connected to the second end 45,
Its one side for bracing against the bushing 31 opposite with drive shaft 3.
Therefore, supporting member 47 is compressed taking turns 5 towards the lower end of drive shaft 29.
In general, connecting elements 41 is the stud extended along rotary shaft X.First end 43, which is bonded on, to be arranged under drive shaft 3
In screw thread shell 49 in end 29.First end 43 has external screw thread, the screw-internal thread fit with shell 49.
The second end 45 of connecting elements 41 has external screw thread 50.Supporting member 47 is the nut being screwed on external screw thread 50.
Bushing 31 usually has the shape of generally frustum of a cone, and hole 39 is located at the top of centrum.The section of bushing 31 from
Pedestal 51 near the lower end of drive shaft 3 29 gradually becomes smaller to hole 39.
Bushing 31 limits inner space 52, opens wide at pedestal 51 to drive shaft 3.
Bushing 31 has the inner surface 53 for limiting inner space 52 and defines the appearance of main fluid circulation canal in wheel 10
Face 54.
Supporting member 47 includes cylindrical portion 55, and cylindrical portion 55 is axially extending by head 56.Cylindrical portion 55 has and connect structure
The internal screw thread of the external screw thread cooperation of part the second end 45.It is engaged in hole 39.Head 56 limits shoulder 57, and shoulder 57 is around circle
Column portion 55 projects radially outwardly.Shoulder 57 is supported on the hole side opposite with drive shaft 3 around hole 39.Therefore, the head of nut
Portion 56 is not contained in the inner space 52 of bushing.
Head 56 has suitable shape to cooperate the extension of bushing 31, and constitutes bushing vertex.The cooperation of its outer surface
The extension of sleeve outer surface 54.
Connector 33 further includes the central screw 58 across the head of supporting member 47 56, and is screwed into the of connecting elements
In two ends 45.Supporting member 47 is securely fixed on centre bolt 58 by such as taper positioning screw or solder joint.Setting
Centre bolt 58 is to prevent supporting member 47 relative to the rotation of connecting elements 41, to prevent the separation of the supporting member.
As shown in Fig. 2, further including multiple associated joint members 59 by the connector 33 that wheel 5 is connected to axis 3.Each associated
Bushing 31 is fixed to drive shaft 3 by connection member 59.
Associated joint members 59 are usually the periphery column 59 circumferentially distributed along rotary shaft X, and by the pedestal of bushing 31 51
It is fixed with the lower end 29 of drive shaft 3.
According to the present invention, pump 1 includes the loss prevention structure for being connected to connecting elements 41 and being inserted between drive shaft 3 and bushing 31
Part 60.The shape of loss prevention component 60, which is selected as, cannot pass through hole 39 when connecting elements 41 is broken.
For this purpose, when hole 39 has the first straight section (straight section) perpendicular to rotary shaft X, loss prevention component
60 are selected as with the second straight section perpendicular to rotary shaft X, and it is flat that the second straight section is at least greater than first in one direction
Straightforward face.
Therefore, when hole 39 have first diameter circular section, such as loss prevention component 60 have second diameter circular cross-section,
Second diameter is greater than first diameter.
Loss prevention component 60 is located in the inner space 52 of bushing.
In the exemplary embodiment of Fig. 2, loss prevention component 60 is the ring around connecting elements 41.The ring has ring
Shape shape.
Loss prevention component 60 has the internal screw thread 61 cooperated with the external screw thread of connecting elements 41.
In general, internal screw thread 61 cooperates with the external screw thread 50 for being arranged in connecting elements the second end 45.
Alternatively, the internal screw thread 61 of loss prevention component be arranged in connecting elements 41 dedicated external screw thread cooperate, and with for prop up
The external screw thread 50 that component 47 is arranged is supportted to separate.
Connecting elements 41 also has shoulder 63, and shoulder 63 defines loss prevention component 60 to be stopped along the axial position of connecting elements 41
Gear.Shoulder 63 goes out relative to 50 radially outwardly projecting of screw thread.It is disposed axially at 50 a small distance of screw thread.
As shown in Fig. 2, loss prevention component 60 is defined as by big annular surface 65 towards supporting member 47, and by another
A big annular surface 67 is defined as towards drive shaft 3.Big annular surface 67 has the bizet 69 being arranged in around shoulder 63.Bizet 69
It is substantially cylindrical and coaxial with rotary shaft X.
Bizet 69 has the shoulder 71 in inner radial surface, and shoulder 71 is axially supported against shoulder 63.
In addition, including that loss prevention component 60 is hindered to rotate relative to connecting elements 41 by the connector 33 that pump impeller 5 is connected to axis 3
Taper fixing screws 73.Taper fixing screws pass through bizet 69 radially extend, and be bonded on be arranged in it is blind in shoulder 63
Kong Zhong.
Loss prevention component 60 is located at at a certain distance from 3 axially spaced-apart of drive shaft, is not in contact with it.
Also it is mounted to not contact with bushing 31, so that super electrostatic connection will not be generated between bushing 31 and drive shaft 3.
In fact, the pedestal 51 of bushing (is not shown by gear assembly also other than connecting with associated joint members 59
It is connect out) with drive shaft 3, so that rotation torque is transmitted to bushing from axis.Gear assembly is conventionally positioned at close to correlation
59 diameter of connecting elements is diametrically.Power between loss prevention component and bushing, which contacts, will hinder the gear between bushing and axis
Connection.
Loss prevention component 60 is axially located between shoulder 63 and supporting member 47.
According to another aspect of the present invention, the inner surface 53 of bushing 31 towards drive shaft 3 is about conical butt.
Loss prevention component 60 has the radial surface 77 of generally frustum of a cone again, and the shape of radial surface 77 and the shape of inner surface 53 are total
Yoke, and be arranged to opposite with inner surface 53.
The edge of the corresponding loss prevention component of radial surface 77, large surface 65 and 67 is connected to each other.It extends simultaneously around axis X always
And it is coaxial with axis X.
Have between the inner surface 53 of bushing and the radial surface 77 of loss prevention component along the interval of rotary shaft X, is spaced small
In 2mm, preferably less than 1mm.Therefore, if connecting elements 41 is damaged, radial surface 77 braces against inner surface 53, only axis
Upward small movements.As a result, if connecting elements 41 is damaged, the head of supporting member 47 hardly prominent or root in wheel 5
This is not protruded.The high-speed motion due to the main fluid in wheel 5, the relevant significant movement of the stress that nut 47 is subjected to will not occur.
The interval is determined to have function:
The operating analysis pumped in the case where 41 breakage of connecting elements；
The relative motion of calculating unit during heat transition, the contact force between radial surface 77 and inner surface 53 must
It must be avoided by；
The feasibility of production.
Installation of the pump impeller 5 in drive shaft 3 carries out as follows.
Loss prevention component 60 is mounted on connecting elements 41 first.In the exemplary embodiment, it is screwed onto connecting elements
On the external screw thread of the second end 45, until the adjacent shoulder 63 of shoulder 71.Next taper fixing screws 73 are placed, to stop loss prevention
Rotation of the component 60 relative to connecting elements 41.
Then, connecting elements 41 is installed in drive shaft 3.More specifically, in the exemplary embodiment, connecting elements
In 43 threaded through bores 49 of first end.
Next pump impeller is installed in drive shaft 3.Wheel 5 is axially adjacent to the drive shaft 3, so that engaging connection in hole 39
The second end 45 of component 41.Then, supporting member 47 is screwed in the second end 45 of connecting structure.Cylindrical portion 55 therefore through hole
Inside 39, head 56 braces against the edge in hole 39 via shoulder 57.Supporting member 47 is selected along the final position of connecting elements 41
It is selected as maintaining scheduled axial separation between the inner surface 53 of bushing and the radial surface 77 of loss prevention component 60.
Finally, installation associated joint members 59, the pedestal of bushing 31 is tightly secured in drive shaft 3.
The present invention has the advantages that multiple.
If transmission shaft 3 and loss prevention component 60 are damaged, loss prevention component 60 prevents the second end 45 and branch of connecting elements 41
Support component 47 becomes mobile main body.In fact, the weight of supporting member 47 and the second end 45 is tended to draw loss prevention component 60
To hole 39, but due to its shape, the latter cannot pass through hole 39.Therefore supporting member 47 and the second end 45 maintain and bushing 31
Connection and cannot from its disengaging.
Loss prevention component 60 is set to make to facilitate manufacture and the installation on connecting elements 41 with circular structure.Its rotation can be given
The symmetry turned, will not generate unbalance during pump operation.
Loss prevention component 60, which is screwed in, to be allowed quickly easily to place on connecting elements 41.
It is particularly advantageous for loss prevention component 60 to be screwed on the external screw thread for being configured to receive supporting member 47.Therefore,
Only need to generate a screw thread.
Similar, the presence that the shoulder 63 of the positioning backstop of loss prevention component 60 is defined on connecting elements 41 makes it possible to quickly
And easily position loss prevention component 60.
The main pump for nuclear reactor is described above in the present invention.However, it to can be applied to other any kind of
Pump, in another circuit of nuclear reactor, or even in the industrial equipment other than nuclear reactor.
Pump can be any type, it is not necessary to be so centrifugal pump.
Wheel can be installed in any suitable form on the drive wheel, it is not necessary to so vertical by being centered around the center of periphery column
The mode of column.
Similar, connecting elements has been described as stud but it is also possible to be screw, pull rod or other any connection components
Suitable type.
Loss prevention component is described as ring.In another embodiment, loss prevention component can be made of a series of lug, attachment
Around connecting elements, or it can be made of the collar being arranged in the material of connecting elements.
Loss prevention component not only can also can be fastened on company by welding, key or other any suitable modes by screw thread
On connection member.
Claims (11)
1. a kind of pump, is used for nuclear reactor, the pump (1) includes:
Drive shaft (3), the drive shaft (3) have rotary shaft (X)；
Pump impeller (5), the pump impeller (5) include the bushing (31) for being placed in the drive shaft (3) extension, the bushing
(31) there are hole (39)；
The connector (33) of pump impeller (5) and drive shaft (3), the connector (33) include connecting elements (41), connecting elements
(41) there is first end (43) and the second end (45), the first end (43) is connected to drive shaft (3) and described the
Two ends (45) engagement in hole (39) is opposite with first end, and connector (33) further comprises supporting member (47), support
Component (47) is connected to the second end (45) of connecting elements (41) and braces against and drive shaft (3) opposite bushing (31)
One side；
Connector (33) includes multiple relevant connection attachmentes (59), and each relevant connection attachment (59) connects pump impeller (5)
To on drive shaft (3)；
It is characterized in that, pump (1) further includes the loss prevention component (60) for being connected to connecting elements (41), and the loss prevention component
(60) it is inserted between drive shaft (3) and bushing (31), if shape is selected as connecting elements (41), breakage cannot pass through hole
(39)。
2. pump according to claim 1, which is characterized in that the loss prevention component (60) is to be centered around connecting elements (41)
Ring.
3. pump according to claim 2, which is characterized in that the connecting elements (41) has external screw thread (50), described
Loss prevention component (60) there is the internal screw thread (61) that cooperates with external screw thread (50).
4. pump according to claim 3, which is characterized in that the external screw thread (50) is arranged in the of connecting elements (41)
On two ends (45), supporting member (47) is the nut being screwed on external screw thread (50).
5. according to any pump of claim 2 to 4, which is characterized in that the connecting elements (41) has shoulder (63),
The shoulder (63) defines loss prevention component (60) axially along the positioning backstop of connecting elements (41).
6. according to any pump of claim 2 to 4, which is characterized in that the bushing (31) passes through substantially frustum of a cone
Shape inner surface (53) is defined towards drive shaft (3), and loss prevention component (60) has generally frustoconical radial surface (77),
Its shape and the shape of the inner surface (53) are conjugated, and are arranged as opposite with the inner surface (53).
7. pump according to claim 6, which is characterized in that in the inner surface (53) and loss prevention component of the bushing (31)
(60) there is the interval less than 5mm along rotary shaft between radial surface (77).
8. pump according to any one of claims 1 to 4, which is characterized in that the loss prevention component (60) not with bushing (31)
Contact.
9. pump according to any one of claims 1 to 4, which is characterized in that the connection of the pump impeller (5) and drive shaft (3)
Part (33) includes taper fixing screws (73), and taper fixing screws (73) prevent loss prevention component (60) relative to connecting elements (41)
Rotation.
10. pump according to any one of claims 1 to 4, which is characterized in that the connecting elements (41) is along drive shaft
(3) stud that rotary shaft (X) extends.
11. pump according to any one of claims 1 to 4, which is characterized in that the hole (39) has perpendicular to rotary shaft
(X) the first straight section, the loss prevention component (60) have perpendicular to rotary shaft (X) the second straight section, described second
Straight section is at least greater than first straight section in one direction.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1555370A FR3037365B1 (en) | 2015-06-12 | 2015-06-12 | PUMP WITH IMPERDABILITY BODY |
| FR1555370 | 2015-06-12 | ||
| PCT/EP2016/063340 WO2016198629A1 (en) | 2015-06-12 | 2016-06-10 | Pump having an anti-loss member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107743551A CN107743551A (en) | 2018-02-27 |
| CN107743551B true CN107743551B (en) | 2019-07-16 |
Family
ID=54291419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680034027.XA Active CN107743551B (en) | 2015-06-12 | 2016-06-10 | Pump with loss prevention component |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3308029B1 (en) |
| CN (1) | CN107743551B (en) |
| FR (1) | FR3037365B1 (en) |
| WO (1) | WO2016198629A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2117011A (en) * | 1935-02-27 | 1938-05-10 | Ward E Pratt | Centrifugal pump |
| FR2484035A1 (en) * | 1980-06-06 | 1981-12-11 | Klein Schanzlin & Becker Ag | MEANS FOR COUPLING TREES |
| FR2649165A1 (en) * | 1989-06-29 | 1991-01-04 | Jeumont Schneider | Wheel-shaft connection, particularly for a cooling pump of a nuclear reactor |
| CN202867244U (en) * | 2012-10-19 | 2013-04-10 | 福建省尤溪长波水力机械有限公司 | Water turbine pump for pumping water and generating electricity |
| WO2013165840A1 (en) * | 2012-05-02 | 2013-11-07 | Borgwarner Inc. | A low stress turbocharger turbine wheel having a threaded through bore mount |
| CN203384088U (en) * | 2013-07-03 | 2014-01-08 | 中国核电工程有限公司 | Connecting structure for pump shaft and impeller of concrete volute pump of nuclear power plant |
-
2015
- 2015-06-12 FR FR1555370A patent/FR3037365B1/en not_active Expired - Fee Related
-
2016
- 2016-06-10 EP EP16730775.0A patent/EP3308029B1/en active Active
- 2016-06-10 CN CN201680034027.XA patent/CN107743551B/en active Active
- 2016-06-10 WO PCT/EP2016/063340 patent/WO2016198629A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2117011A (en) * | 1935-02-27 | 1938-05-10 | Ward E Pratt | Centrifugal pump |
| FR2484035A1 (en) * | 1980-06-06 | 1981-12-11 | Klein Schanzlin & Becker Ag | MEANS FOR COUPLING TREES |
| US4407631A (en) * | 1980-06-06 | 1983-10-04 | Klein, Schanzlin & Becker Aktiengesellschaft | Motor-pump aggregate |
| FR2649165A1 (en) * | 1989-06-29 | 1991-01-04 | Jeumont Schneider | Wheel-shaft connection, particularly for a cooling pump of a nuclear reactor |
| WO2013165840A1 (en) * | 2012-05-02 | 2013-11-07 | Borgwarner Inc. | A low stress turbocharger turbine wheel having a threaded through bore mount |
| CN202867244U (en) * | 2012-10-19 | 2013-04-10 | 福建省尤溪长波水力机械有限公司 | Water turbine pump for pumping water and generating electricity |
| CN203384088U (en) * | 2013-07-03 | 2014-01-08 | 中国核电工程有限公司 | Connecting structure for pump shaft and impeller of concrete volute pump of nuclear power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3037365B1 (en) | 2019-10-25 |
| WO2016198629A1 (en) | 2016-12-15 |
| EP3308029A1 (en) | 2018-04-18 |
| EP3308029B1 (en) | 2019-07-10 |
| CN107743551A (en) | 2018-02-27 |
| FR3037365A1 (en) | 2016-12-16 |
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| GR01 | Patent grant |