CN102606493B - It is disposed with the electric compressor unit of torsional flexibility connector in compressor quill shaft - Google Patents
It is disposed with the electric compressor unit of torsional flexibility connector in compressor quill shaft Download PDFInfo
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- CN102606493B CN102606493B CN201110463229.5A CN201110463229A CN102606493B CN 102606493 B CN102606493 B CN 102606493B CN 201110463229 A CN201110463229 A CN 201110463229A CN 102606493 B CN102606493 B CN 102606493B
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- 238000000926 separation method Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 49
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- 230000005611 electricity Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 7
- 238000007906 compression Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 239000011796 hollow space material Substances 0.000 description 3
- 210000003027 Ear, Inner Anatomy 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000001050 lubricating Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000276438 Gadus morhua Species 0.000 description 1
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- 235000019516 cod Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000000717 retained Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
A kind of electric compressor unit (1), including motor (3) and compressor (2), is arranged in the public shell (4) that can seal gas to be compressed.Motor (3) includes the rotor (39) being pivotally connected to the rotor (38) of compressor (2).The rotor (38) of compressor includes main shaft (11) and the connecting shaft (21) coaxial with main shaft, in connecting shaft is at least partially arranged in main shaft (11), in order to main shaft (11) radial separation the join domain (15) including for being connected with main shaft (11).
Description
Technical field
The present invention relates to turbo-compressor or motor compressor, particularly relate to integral electric compressor unit.Reduced overall
Machine unit includes capsul, is wherein disposed with motor and for example has multistage compressor unit, and it includes by by rotor
Multiple compressor impellers that the driven shaft driving supports.
Background technology
Initially proposing and being connected driven shaft and rotor by rigid connector, bearings is in electric compressor unit
The two ends of axis and middle part thereof.
But, need, in this structure of fit on, align well rotor and driven shaft.It is proposed that by flexibly connecting
Rotor and driven shaft are connected by device, to save alignment problem.Additionally, this scheme allows rotor and driven shaft to keep shaking of self
Dynamic model formula, because both keep frame for movement independent.It is referred to document WO2004/083644 at this point, which describe
This arrangement.Carry out maintenance operation to take out compressor in shell, need the radial opening in shell to touch flexibility
Connector.These radial openings, even if they are provided with sealing lid, it is also possible to the gas leakage accommodating in causing shell.
When compressed gas is inflammable gas, owing to mixing with surrounding air, leakage may cause detonation.Therefore this
The reason that the sealing demand of turbo-compressor is the very hard and fast rule limiting the design of this motor compressor.
Additionally, the flexible connector using, it is common that diaphragm type, add the axially projecting amount of electric compressor unit
(rigid connector being commonly angled relative to have flange is the amount of 35 to 40 centimetres), and also become weakness zone here, because it
Be only capable of bearing axially upper limited stretching or compression stress.
In order to allow to act on big axial force on axle, the therefore use of this flexible connector means turning at motor
The axial bearing of at least one on son and another the axial bearing being fixed to driven shaft.
Content of the invention
The purpose of the present invention is to propose to the compact monoblock type turbo compressor unit of a kind of axial arrangement, its axial rigidity foot
Enough use the axial bearing of only one and do not limit applied axial force, this electric compressor unit be configured to reduce gas
Body leaks, and allows for maintenance operation purpose and realize simple-mounting-dismounting.
For the purpose of it, electric compressor unit includes motor and compressor, both are arranged on public can sealing
In the shell of gas to be compressed.Motor includes rotor, and it is pivotally connected to the rotor of compressor.The rotor of compressor includes main
Axle and the connecting shaft coaxial with main shaft, connecting shaft be at least partially arranged in main shaft with main shaft radial separation and include for
The join domain that main shaft connects.
In one embodiment, electric compressor unit is centrifugal electric compressor unit.Centrifugal compressor level is by leading
Axle supports.
According to another feature of the invention, electric compressor unit includes at least two bearing of supports main shaft, connects
Axle passes over a bearing and extends, and i.e. passes through bearing.
Preferably, connecting shaft crosses the bearing extension of supports main shaft, also crosses one or more compression stage, i.e. crosses a row
Or multiple rows of compressor blade.According to preferred embodiment, all compression stages that connecting shaft crosses main shaft extend.
Electric compressor unit preferably includes at least two bearing of supporting motor rotor axle, two bearings compressors
Main shaft, and include single axial bearing, it is arranged on rotor axis of electric or main shaft.
Axial bearing flywheel can be disposed axially in join domain (including around join domain) and main shaft blade it
Between.
According to another embodiment, compressor does not has axial bearing, and axial bearing is connected to the rotor of motor.
Preferably, electric compressor unit includes axially and to be rotatably fixed to connecting shaft at join domain
The dismountable auxiliary parts of the main shaft of compressor.
Preferably, dismountable auxiliary parts are configured to operation and tear open from the source of entering of an axial end portion at shell
Fall.
According to preferred embodiment, axial bearing flywheel is pacified around a part for horizontal main shaft by dismountable auxiliary parts
Dress.
According to advantageous embodiment, electric compressor unit includes axial bearing, and axial bearing includes and a part of main shaft
The axial bearing flywheel of one.
According to preferred embodiment, electric compressor unit include low-pressure gas import and more axial than low pressure inlet on closer to electricity
The gases at high pressure outlet of machine, separately the radial space of main shaft and connecting shaft has gas can be allowed to leave motor towards low pressure inlet
The width of regional nature flowing.
Preferably, main shaft includes connecting the outside one or more radial holes with radial space of main shaft.
Preferably, main shaft includes connecting radial space and at least one first radial hole outside main shaft or one group first group
Radial hole, this or this some holes is formed at the outside of the main shaft of row's blade upstream.
According to preferred embodiment, the first radial hole or first group of radial hole be formed at join domain and the first compression stage it
Between, the first compression stage is at the row's blade from motor maximum distance apart.
In a preferred embodiment, the first radial hole or first group of radial hole can be especially formed at bearing and the first compression stage
Between.
Preferably, main shaft also includes at least one second radial hole being formed between longitudinal balance piston and journal bearing
Or one group of second group of radial hole, journal bearing is closest to the journal bearing of motor supports main shaft.
According to preferred embodiment, the shell of electric compressor unit is not specifically designed to provide the company between various axles
The radial opening connecing.
Especially, the shell of electric compressor unit can have single radial opening, is used only for gas to be compressed
The opening of inlet and outlet, i.e. uncompressed gas feed and compressed gas export, and the recirculation for gas secondary flow
Optional gas branch connect, in order to for example optimize motor cooling.
Electric compressor unit can include the damping unit being arranged between connecting shaft and main shaft.
According to first embodiment, connecting shaft is rigidly connected to main shaft at join domain.According to the second embodiment, damping unit
It is arranged between connecting shaft and main shaft.
Brief description
Other objects, features and advantages of the present invention is by below by reading and being given as just nonrestrictive example
Illustrate and obvious, wherein after reference accompanying drawing:
Fig. 1 shows the synoptic diagram of the electric compressor unit according to the present invention,
Fig. 2 represents another embodiment of the electric compressor unit according to the present invention,
Fig. 3 represents the detail view of the 3rd embodiment of the electric compressor unit according to the present invention.
Detailed description of the invention
As it is shown in figure 1, electric compressor unit is universally represented by reference 1, including the compressor being rotated by motor 3
2.The axis of rotation of motor 3 and compressor 2 is expressed as axle X-X '.Compressor 2 and motor 3 are arranged in public shell 4.Outward
Shell 4 can take the form of for example substantially cylinder 8, and it is respectively by being located close to one end of motor and near one end of compressor
Two lids the 9th, 10 seal at its both ends and to close, and for example be affixed on body 8 keep by spiral shell.
Therefore motor and compressor are arranged in the gas being processed by electric compressor unit.
For the purpose of simplifying the description, figure illustrate only the rotor portion of compressor 2.The rotor 38 of compressor 2 particularly including
Main shaft 11, a row or multi-row impeller (or compressor wheels) being arranged on main shaft 11 the 12nd, the 13rd, 14, and be partially disposed in main shaft
And connect the rotor 39 of motor and the connecting shaft 21 of main shaft 11.
The 13rd, the 12nd, this row's impeller 14 be arranged on the main shaft 11 of compressor 2, and is gradually distance from the main shaft 11 1 of compressor 2
End, it is that one end relative with motor 3 in this case.Certainly, compressor 2 can include arbitrarily arranging the leaf pointing to motor
Piece.Inserting the stator vane of a bank of compressors 2 between two row's impellers of the main shaft 11 of compressor 2, it is not shown in the drawings.Fixed
Blades is fixed to (not shown) on the support of main shaft 11, and is radially directed towards main shaft 11.
Two bearings 16 and 17 of the side by the side with relative motor 3 that lay respectively at motor 3 for the main shaft 11 radially prop up
Support.The rotor 39 of motor 3 is driven by the motor shaft 20 radially being supported by two bearings 18 and 19.Bearing is the 16th, the 17th, the 18th, 19 excellent
Elect the bearing not needing lubricating fluid supply as.For the purpose of it, for example, active magnetic bearings or gas bearing can be used.
The support of compressor and bearing the 16th, 17, is fixed to shell 4 during compressor operation, can during maintenance operation
To take off from shell, in order to axially take out stator support from compressor 2 via the outer casing end corresponding to lid 10, bearing the 16th, 17
Whole assembly with rotor (being driven by axle 11).
The gas access holes 5 of the upstream via first row blade 12 for the gas that compressor 2 must compress inputs.Through even
The 12nd, continuous a few row's blades the 13rd, after 14, discharge compressor via gas discharge hole 6.In order to cool down motor 3, cooling tube 7 is
The downstream export section compressed gas of one row's blade 12, and by this gas band to motor 3, in order to cooling motor.If temperature permits
Permitted, derive and can implement in the downstream in the downstream of another row's blade or tap 6.
Main shaft 11 hollows out at middle body, i.e. near its axle, in openend and main shaft 11 company of being fixed to towards motor 3
Between the join domain 15 of spindle 21.In the embodiment in figure 1, main shaft 11 is being positioned at the end relative with motor 3 and bonding pad
Axial component between territory 15 also hollows out its center.
Join domain 15 is positioned between the bearing 16 and 17 of supports main shaft 11, is at the leaf being driven by main shaft 11 more accurately
Between piece group with the bearing 17 of that be arranged in motor 3 and that this group blade is relative opposite side.
The either side of join domain 15 is centrally located at motor 3 and compressor 2 by the hollow space of main shaft 11
Axisymmetric cylindrical hollow part on pivot center x-x '.
It will be seen that connecting shaft 21 extends at least partially in main shaft 11.Especially, connecting shaft 21 has than main shaft 11
The little cross section of hollow space, and extend to the join domain 15 of main shaft 11.Therefore radial space 37 is arranged in main shaft 11 and connects
Between axle 21.
Additionally, connecting shaft 21 provides the connection between the armature spindle 20 of main shaft 11 and motor.Motor shaft 20 for example passes through
Flange 22 is rigidly mounted to connecting shaft 21.
Connecting shaft 21 is fixed to join domain 15 in the end contrary with motor 3.Connecting shaft 21 is preferably high in the wrong by having
The material taking intensity is constituted.Therefore connecting shaft 21 can bear motor distorting stress with the cross section reducing, and owing to these reduce
Cross section, can by arrange radial space 37 and be arranged in main shaft 11.According to variant embodiment, can use overall diameter less than
The connecting shaft of the half of the overall diameter of motor shaft 20.
The cross section of this reduction also makes connecting shaft 21 be positively retained at bending deformed elastic range between the two ends
In, and the constant angle between main shaft and motor shaft or lateral error need not be considered.This elasticity also makes to may filter that main shaft
And the elastic vibration between motor shaft.Additionally, the cross section that connecting shaft reduces allows at the moment of torsion being transmitted by motor or by compressor
Transmission gradient force when the resistance moment of torsion applying changes suddenly.
It is basic that connecting shaft 21 has cross section between fitting flange 22 and the end of the join domain 15 being fixed to main shaft 11
Constant middle body 27.In the end being fixed to join domain 15, dismountable auxiliary parts provide connecting shaft 21 and main shaft
Connection between 11.
In the particular embodiment shown, connecting shaft 21 has splined area 23.Be arranged in the spline of its exterior circumferential with
The hollow spline coupling being arranged on the join domain 15 of main shaft 11.
Except splined section 23, connecting shaft 21 is continued by threaded portion 24, and its cross section is less than the cross section of splined section 23.Should
Threaded portion passes through the hole 25 of the respective diameters in join domain 15.Nut 26 is at the body with connecting shaft 21 of join domain 15
27 relative sides are screwed on threaded portion 24.
Therefore connecting shaft 21 rotationally and is axially fixed to main shaft 11 at join domain 15.
During maintenance operation, in order to take out compressor 2 from shell 4, only need to remove end cap 10, nut of outwarding winding
26, the 16th, stator support and bearing 17 separated from shell, and axially takes out compressor 2 via the opening of lid 10.In the enclosure not
Radial hole is needed to come separately motor 3 and compressor 2.Gas feed hole the 5th, gas discharge hole 6 and the hole corresponding to cooling tube 7 are cloth
Put the only radial hole in the shell 4 of electric compressor unit.Which has limited leak near compressor and occur quick-fried
The danger of combustion.But limited radial opening can be arranged, in order at flange 22s, separate motor shaft 20 and connecting shaft 37.
The connection obtaining by way of connecting shaft 21 between motor shaft 20 and main shaft 11 is rigid in the axial direction.
Single axial bearing 28, it interacts with cod 40, and provide axis axially retains power.Axial bearing 28
Also preferably do not need the type of lubricating fluid supply, the such as bearing of active magnetic type.
In the embodiment in figure 1, bearing 28 includes shrink-fit the axle being connected to main shaft 11 around join domain 15
To bearing flywheel 29.Join domain 15, although the threaded portion 24 of connected axle 21 is horizontally through, but be still in this case
The radially rigid region of main shaft 11, because axle 21 has been hollowed out than the cross section bigger in the hole 25 of join domain 15 both sides.
Fig. 2 shows the second embodiment of the present invention.Fig. 2 shows the element identical with Fig. 1, and identical element is by identical
Reference represent.The arrangement of motor the 3rd, compressor 2, giving vent to anger of the low-pressure admission mouth 5 of gas to be compressed and compressed gas
Mouth 6 is all identical with Fig. 1.
In the embodiment of fig. 2, what single axial bearing 30 was also used for providing motor 3 and compressor 2 axially retains power, should
Axial bearing 30 is now disposed between the bearing 18 and 19 of the rotor supporting motor 3.In the embodiment of fig. 2, compressor 2
Therefore not there is bearing.Another not shown but favourable technical scheme can include the end at rotor 39 after bearing 18
Portion arranges bearing.
Fig. 3 is the partial cross section of the simplification of the compressor of electric compressor unit according to the third embodiment of the invention
Figure.Fig. 3 shows the reference general with Fig. 1 and 2 phase, and identical element is then indicated by the same numbers.Especially,
Fig. 3 shows splined section the 23rd, its threaded portion 24 and the locking nut 26 of the body of connecting shaft the 21st, connecting shaft 27, connecting shaft.
Also show longitudinal balance piston 31 in figure 3, it includes rotating part 32, and in the face of being fixed to stator support
The piston standing part 33 of (not shown).Rotating part 32 and standing part 33 are by the narrow slit 34 points as labyrinth packing
Opening, (upstream portion can be understood as the upstream portion relative to the gas flow direction in compressor 2 to be contained in piston upstream portion
Point) gases at high pressure leakage current via its flow.
In the fig. 3 embodiment, gas access holes 5 is given vent to anger further from motor 3, compressed gas than compressed gas venthole 6
Boring ratio piston 31 is away from motor 3 one point.The radial space 37 separating connecting shaft 21 with main shaft 11 is from the motor side of axle 11
Openend extends, and crosses bearing 16, one group of blade of piston 31 and main shaft 11.
Main shaft 11 is made up of some in this case, i.e. include join domain 15 the first axial component 11a and
It is just connected the horizontal break-through of hollow space of axle 11 and with the vaned Part II 11b of institute.Two parts pass through flange
System 34a and 34b connect, flange 34a and axial bearing flywheel 29 one, the one of the axial bearing of formation electric compressor unit
Part.
Produce main shaft 11 with some and make the optional manufacturing technology being more suitable for each element.Additionally, it is this
Separating type makes can integrally manufacture part 11a and axial bearing flywheel 29, if single-piece manufactures connecting shaft 21, substantially more
Add complexity.
It is also conceivable that different embodiments, wherein axial bearing flywheel 29 is made between two parts 11a and 11b
Single dish flange forms.
Fig. 3 show part 11b being arranged in main shaft in radial hole.First hole or first group of hole 35 are disposed in one
In the area of low pressure of the upstream portion (relative to the flowing of gas in compressor 2) of row's blade 12, axial in gas access holes 5
Near.
Second hole or second group of hole 36 are arranged in main shaft 11, between piston 31 and magnetic bearing 16.This or these with
The related hole 36 of radial space 37 makes can be by the gas leaking via labyrinth 34 and by from the main shaft being positioned at motor 3 side
The end of 11 is directed in main shaft 11 by the air-flow of magnetic bearing 16.Selecting hole the 35th, 36 size and the radial width in space 37,
To allow from the gas of motor or the gas neous flow collected by hole 36.
It is arranged in the hole 35 of area of low pressure to make to be used for the hot gas that cools down in the air-flow of motor 3 and received by hole 36
The gas from the air-flow that piston 31 returns of collection is brought this area of low pressure into from the openend of main shaft 11 and is possibly realized.By motor 3
The gas of heating then mixes with the gas entering turbo-compressor via hole 5, therefore " dilutes " in the flowing of gas to be compressed
The heat extracted out from motor 3.
Main shaft 11 becomes the essential part of the cooling circuit of electric compressor unit by this way.
The purpose of the present invention is not restricted to described example, and has multiple modification.For example, it is envisioned that by axial bearing cloth
Put between bearing 16 and 19, on motor shaft 20 or in connecting shaft 21, or between the flange 22 connecting two axles.Also
It is contemplated that the outside of outside and the bearing of compressor that axial bearing is all disposed within motor bearings, i.e. a left side for Fig. 1 middle (center) bearing 18
Side or the right side of bearing 17.It is contemplated that the several axial bearing of use.Bearing 16 is magnetic bearing or gas bearing, by hole 36
Guiding, the air-flow from bearing 16 is captured.
It is contemplated that and join domain 15 is arranged in the end of main shaft 11 and/or it is arranged to prop up away from end bearing 17
Support main shaft 11.It is contemplated that the main shaft 11 in join domain than a part of blade closer to motor.It is contemplated that connecting shaft
21 quill shafts 11 being not inserted into compressor, but insert the quill shaft 20 of the rotor of motor 3.
Although present invention is preferably applicable to centrifugal compressor, it may be equally applicable to axial compressor.
Make to realize flexibly connecting between motor and compressor according to the electric compressor unit of the present invention, improve
Its rigidity and axially compact.Electric compressor unit according to the present invention also makes significantly to simplify in cooling pipe and loop
The structure of electric compressor unit.The whole sealing of compressor is improved and is maintained easily.
Reference numerals list: 1 electric compressor unit；2 compressors；3 motors；4 shells；5 gas access holes；6 gas rows
Portal；7 cooling tubes；8 cylinders；9 end caps；10 end caps；11 main shafts；12,13,14 1 row's blades；15 join domains；16,17 pressures
Contracting machine bearing；18,19 rotor bearings；20 motor shafts；21 connecting shafts；22 flanges；23 splined section；24 threaded portions；25
Hole；26 nuts；27 connecting shaft bodies；28 axial bearings；29 axial bearing flywheels；30 axial bearings；31 longitudinal balance pistons；32
Piston rotation part；33 piston standing parts；34a flange；34b flange；35 motor cooling gas return apertures；36 piston leakages are returned
Hui Kong；Radial space between 37 main shafts 11 and connecting shaft 21；38 compressor drums；39 rotors；40 axial supporting bearings；
The common rotating shaft line of x-x ' compressor and motor.
Claims (14)
1. electric compressor unit (1), including motor (3) and compressor (2), is arranged on and public can seal gas to be compressed
Shell (4) in, motor (3) includes the rotor (39) being pivotally connected to the rotor (38) of compressor (2), and its feature exists
In the rotor (38) of compressor includes main shaft (11) and the connecting shaft (21) coaxial with main shaft, at least part of cloth of described connecting shaft
Put in main shaft (11) with main shaft (11) radial separation the join domain (15) including for being connected with main shaft (11).
2. electric compressor unit according to claim 1, including a motor and the either side being disposed axially in motor
Two compressors, both are arranged in the public shell that can seal gas to be compressed, and motor includes being rotationally coupled to pressure
The rotor of each rotor of contracting machine, each compressor drum includes main shaft and the connecting shaft coaxial with main shaft, and described connecting shaft is extremely
Small part be arranged in main shaft in case with main shaft radial separation the join domain including for being connected with main shaft.
3. electric compressor unit according to claim 1, wherein also includes at least two bearing of supports main shaft (11)
(16,17), connecting shaft extends across one of them bearing (16).
4. the electric compressor unit according to any one in aforementioned claim 1-3, wherein also includes at least supporting electricity
The bearing (18,19) of the rotor (39) of machine (3), support the main shaft (11) of compressor (2) at least two bearing (16,17) and
Single axial bearing (28,30), described axial bearing is arranged on the axle (20) of the rotor (39) of motor or on main shaft (11).
5. the electric compressor unit according to any one in aforementioned claim 1-3, is wherein additionally included in join domain
(15) by connecting shaft (21) axially and the detachable optional feature that is rotatably fixed on the main shaft (11) of compressor (2)
(23,24,25,26)。
6. electric compressor unit according to claim 5, wherein dismountable auxiliary parts (23,24,25,26) construction
For being laid down from the source of entering of the axial end portion (10) being positioned at shell (4) by operation.
7. electric compressor unit according to claim 5, wherein also include around main shaft by dismountable auxiliary portion
The axial bearing flywheel (29) that the transversal join domain (15) of part (24,25) is installed.
8. electric compressor unit according to claim 4, wherein also includes axial bearing, and this axial bearing includes and master
The axial bearing flywheel (29) of a part (11a) one of axle (11).
9. according to aforementioned claim 1-3, the electric compressor unit described in any one in 6-8, wherein also include low pressure gas
Body import (5) and ratio gases at high pressure outlet (6) closer to motor (3) in low-pressure gas import (5) axially, wherein by main shaft
(11) have gas can be allowed to leave motor (3) towards low-pressure gas import with the radial space (37) that separates of connecting shaft (21)
(5) width of natural flow.
10. electric compressor unit according to claim 9, wherein main shaft includes connecting main shaft (11) outside and radial direction is empty
Between one or more radial holes (35,36) of (37).
11. electric compressor unit according to claim 10, wherein main shaft (11) include connect radial space (37) and
Main shaft is outside and at least one radial hole (35) of upstream of row's blade (12,13 or 14) of being formed at compressor (2).
12. electric compressor unit according to claim 10 or 11, wherein main shaft (11) includes being formed at longitudinal balance
At least one second radial hole (36) between piston (31) and journal bearing (16), described journal bearing is closest to motor
And the journal bearing of supports main shaft (11) (3).
13. according to aforementioned claim 1-3,6-8, and the electric compressor unit described in any one in 10,11, wherein at shell
(4) not there is in the radial opening of the connection being designed to provide between various axle.
14. according to aforementioned claim 1-3,6-8, and the electric compressor unit described in any one in 10,11, including be arranged in
Damping unit between connecting shaft (21) and main shaft (11).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1061068A FR2969722B1 (en) | 2010-12-22 | 2010-12-22 | TORSIBLE COUPLING MOTORCOMPRESSOR UNIT LOCATED IN A HOLLOW COMPRESSOR SHAFT |
| FR1061068 | 2010-12-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102606493A CN102606493A (en) | 2012-07-25 |
| CN102606493B true CN102606493B (en) | 2016-12-14 |
Family
ID=
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|---|---|---|---|---|
| US2434979A (en) * | 1945-05-21 | 1948-01-27 | Jacosen Mfg Company | Motor drive for centrifugal pumps |
| US2766695A (en) * | 1953-09-25 | 1956-10-16 | Charmilles Sa Ateliers | Motor-pump unit |
| US2958292A (en) * | 1956-10-22 | 1960-11-01 | Allis Chalmers Mfg Co | Canned motor |
| US3031973A (en) * | 1959-11-30 | 1962-05-01 | Kramer Herman | Centrifugal pump with canned motor |
| US3195466A (en) * | 1959-05-25 | 1965-07-20 | Porter Co Inc H K | Electric motor construction |
| US3267868A (en) * | 1963-11-13 | 1966-08-23 | Barnes Mfg Co | Electric motor with plural cooling paths through the shaft |
| US3294027A (en) * | 1963-03-29 | 1966-12-27 | Neu Sa | Centrifugal pump impeller |
| US3873242A (en) * | 1972-09-23 | 1975-03-25 | Weir Pumps Ltd | Fluid machines |
| US3918852A (en) * | 1974-06-24 | 1975-11-11 | James Coolidge Carter | Pump |
| USRE34276E (en) * | 1986-12-19 | 1993-06-08 | Allied-Signal Inc. | Turbocharger bearing and lubrication system |
| EP1273757A1 (en) * | 2000-05-10 | 2003-01-08 | General Motors Corporation | Conically jointed turbocharger rotor |
| CN1650092A (en) * | 2002-04-12 | 2005-08-03 | Abb涡轮系统有限公司 | Turbo charger with means on the shaft for axially securing of said shaft if the compressor wheel bursts |
| GB2469217A (en) * | 2007-10-30 | 2010-10-06 | Richard Julius Gozdawa | Vertical multi-stage gas compressor |
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2434979A (en) * | 1945-05-21 | 1948-01-27 | Jacosen Mfg Company | Motor drive for centrifugal pumps |
| US2766695A (en) * | 1953-09-25 | 1956-10-16 | Charmilles Sa Ateliers | Motor-pump unit |
| US2958292A (en) * | 1956-10-22 | 1960-11-01 | Allis Chalmers Mfg Co | Canned motor |
| US3195466A (en) * | 1959-05-25 | 1965-07-20 | Porter Co Inc H K | Electric motor construction |
| US3031973A (en) * | 1959-11-30 | 1962-05-01 | Kramer Herman | Centrifugal pump with canned motor |
| US3294027A (en) * | 1963-03-29 | 1966-12-27 | Neu Sa | Centrifugal pump impeller |
| US3267868A (en) * | 1963-11-13 | 1966-08-23 | Barnes Mfg Co | Electric motor with plural cooling paths through the shaft |
| US3873242A (en) * | 1972-09-23 | 1975-03-25 | Weir Pumps Ltd | Fluid machines |
| US3918852A (en) * | 1974-06-24 | 1975-11-11 | James Coolidge Carter | Pump |
| USRE34276E (en) * | 1986-12-19 | 1993-06-08 | Allied-Signal Inc. | Turbocharger bearing and lubrication system |
| EP1273757A1 (en) * | 2000-05-10 | 2003-01-08 | General Motors Corporation | Conically jointed turbocharger rotor |
| CN1650092A (en) * | 2002-04-12 | 2005-08-03 | Abb涡轮系统有限公司 | Turbo charger with means on the shaft for axially securing of said shaft if the compressor wheel bursts |
| GB2469217A (en) * | 2007-10-30 | 2010-10-06 | Richard Julius Gozdawa | Vertical multi-stage gas compressor |
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