WO2020104110A1 - Dichtungsvorrichtung, e-maschine und antriebsvorrichtung - Google Patents
Dichtungsvorrichtung, e-maschine und antriebsvorrichtungInfo
- Publication number
- WO2020104110A1 WO2020104110A1 PCT/EP2019/077695 EP2019077695W WO2020104110A1 WO 2020104110 A1 WO2020104110 A1 WO 2020104110A1 EP 2019077695 W EP2019077695 W EP 2019077695W WO 2020104110 A1 WO2020104110 A1 WO 2020104110A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shaft
- sealing device
- seal
- electric machine
- shaft seal
- 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.)
- Ceased
Links
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6685—Details of collecting or draining, e.g. returning the liquid to a sump
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7886—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted outside the gap between the inner and outer races, e.g. sealing rings mounted to an end face or outer surface of a race
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/002—Sealings comprising at least two sealings in succession
- F16J15/004—Sealings comprising at least two sealings in succession forming of recuperation chamber for the leaking fluid
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
Definitions
- the invention relates on the one hand a sealing device for a rotatable shaft, and an electric machine with a sealing device and a Antriebsvorrich device for the electric drive of a motor vehicle, comprising an electric machine.
- Sealing devices for shafts are already known per se, for example Ra dial shaft seals or labyrinth seals. This prevents a gaseous or liquid fluid, such as a lubricant, from escaping in the region of the shaft.
- a sealing system for a shaft is known from DE 10 2016 207 672 A1, in which a shaft earthing ring is provided in addition to the actual shaft seal.
- One embodiment of this sealing system has two shaft seals, between which the shaft grounding ring is arranged.
- the object of the invention is to develop the state of the art.
- a sealing device for a rotatable shaft comprising a shaft seal and shaft grounding and a holder for the shaft seal and shaft grounding
- an e-machine with a rotatable bar-driven rotor shaft and with such a sealing device for sealing the rotor shaft and thus an interior of the e-machine is proposed.
- a drive device for electrically driving a motor vehicle comprising such an electric machine for providing a drive power of the drive device.
- Such an electric machine converts electrical energy into a mechanical rotational movement, or vice versa.
- Such an electric machine can be operated as an electrical generator or motor if necessary.
- the electric machine is in particular a synchronous machine or an asynchronous machine.
- the proposed sealing device is used to seal the rotatable shaft.
- it has the shaft seal. It also has wave grounding.
- it has the holder for holding / carrying the shaft seal and the shaft grounding.
- the holder has at least one opening in the area between the shaft seal and the shaft ground. This opening serves on the one hand to lead particles from the shaft seal, and on the other hand this opening serves to remove particles from the shaft ground.
- the at least one opening is therefore designed to achieve this.
- the opening leads in particular in the radial direction away from the shaft seal and the shaft ground.
- the probability is reduced that particles reach the shaft ground from the shaft seal and have a negative impact on the effect of the shaft grounding. In particular, these can reduce their effectiveness or increase their wear or leakage. Conversely, the probability is also reduced that particles reach the shaft seal from the shaft ground and increase wear on the shaft seal there.
- Such a shaft grounding means in particular a component that creates a rotatable electrical connection between the shaft and an electrical reference potential.
- a reference potential is, for example, an electrical earth potential or an electrical ground.
- the shaft grounding is not used for electrical commutation.
- the shaft grounding electrically connects the shaft to a housing or housing section that rotatably supports the shaft.
- the shaft ground has in particular at least one solid or flexible brush for making sliding contact with the shaft.
- the Wel lenerdung is designed in particular as a shaft earthing ring.
- Such a shaft seal is understood in particular to mean a component which is intended to retain the fluid in the area of the shaft.
- Such shaft seals are already known per se, for example as a radial shaft seal or as a labyrinth seal.
- the at least one opening is preferably arranged such that it is located in the intended installation position of the sealing device below the shaft seal and / or a brush of the shaft grounding. As a result, the particles fall from the shaft seal and / or from the shaft grounding in the intended operation of the sealing device by gravity into the opening and who simply removes it.
- the holder is preferably formed by a housing section of a housing.
- This is, in particular, the housing section that rotatably supports the shaft.
- the housing section can be a separate component or it can be an integral part of the rest of the housing.
- the housing section is formed in particular by a special design of the housing.
- the housing section can have one or more thickenings that hold the shaft grounding and the shaft seal.
- the at least one opening can be formed by a cutout in the thickening.
- the bracket can be structurally simple.
- the housing section is preferably formed by such a local thickening of the housing which gives the shaft an annular shape.
- the housing section then has several of the openings which are divided ver on the circumference of the thickening. For example, three openings can be provided, which are distributed around the order of the thickening.
- One of these openings is preferably in the intended installation position below the shaft seal and / or the brush of the shaft grounding. This also allows the holder to be of simple construction.
- the housing section can have a rib which has at least one opening or - if there are several such openings - all of the openings surrounds radially throughout. A further radial spread of the particles can thus be prevented.
- This rib can form part of a reservoir for the particles discharged via the opening.
- a bearing is preferably also provided on the housing section, such that the shaft rotatably supports the housing. This enables a compact construction to be achieved.
- the opening preferably leads directly to a reservoir for the particles.
- the particles thus discharged thus reach the reservoir without detour. Clogging of a line for the particles to the reservoir, such as a pipe or a channel, is thus excluded.
- the sealing device preferably has a catching device for the contactless removal of a leakage penetrating the shaft seal from the shaft.
- the safety gear is provided in addition to the shaft seal and the shaft grounding with the opening in between. This Fangvor direction works without contact. There is therefore no need for an additional sealing lip, brush or any other component in contact with the shaft and thereby performing frictional work in order to strip off the leakage from the shaft.
- Such safety gear works virtually wear-free and causes only minimal friction losses. An environment away from the sealing device is thus kept free of leakage for the most part.
- a leakage penetrating the shaft seal is understood in this context to mean, in particular, a volume flow of a fluid which is intended to hold back the shaft seal in principle, but which, for various reasons, unintentionally overcomes the shaft seal.
- a leak occurs when a sufficiently large gap between the shaft seal and the shaft opens and the fluid can flow there along the shaft.
- a fluid can in particular be liquid.
- Such a fluid can in particular be a lubricant.
- the sealing device can also be a different fluid, such as a coolant.
- the safety gear works in particular by generating a centrifugal force acting on the leak. This occurs when the shaft rotates. A local increase in the diameter (thickening) of the shaft provided for the catching device has the effect that the leakage is moved radially outward by the shaft rotation. This takes place to such an extent that the leakage detaches itself from the shaft due to the centrifugal force that occurs and is caught and removed by the remaining safety gear. Alternatively or in addition, it is possible to contactlessly suck the leakage from the shaft by generating a negative pressure on the safety gear.
- the catching device itself can form the said reservoir, for collecting the captured and discharged particles or leakage. Or the catching device can lead to the reservoir, or it can at least lead to a line which forwards the leakage to the reservoir.
- the catching device is preferably formed by a shoulder arranged on the shaft and a catching structure radially surrounding this shoulder.
- a shoulder forms on the one hand a local thickening of the shaft and on the other hand forms a tear-off edge for the leakage. This results in a detachment and throwing away of the leakage from the shaft even at a relatively low rotational speed of the shaft.
- the shoulder is seen here for detaching the leak from the shaft, while the catch structure is intended for the actual collection and removal of the leak detached by means of the shoulder.
- the tear-off edge can have a suitable shape so that the leak detaches particularly well from it. In particular, the tear-off edge can be sharp-edged or gritty (that is, with a burr).
- the shoulder arranged on the shaft can either be formed by a shaft shoulder or be formed by a component fastened to the shaft and radially surrounding the shaft.
- a shaft shoulder is formed by the shaft itself, that is to say by a corresponding shaping of the shaft itself, for example se as part of a machining turning process.
- a component which radially surrounds the shaft can be, for example, a separate ring which is pressed onto the shaft or is otherwise fastened thereon. This component then forms the thickening on the shaft with the tear-off edge.
- the catch structure radially surrounding the shoulder is formed by said housing section or by the housing.
- the catch structure can be, for example, a special cast structure in the housing section or housing, which is formed during a cast production. However, it can also be incorporated elsewhere in the housing.
- the catch structure can also be designed for attachment to the housing section or the housing, for example for screwing on. Welding, pressing or gluing.
- the housing section or the housing on the one hand and the catch structure on the other hand consist of different parts.
- the catch structure is preferably formed from sheet metal or plastic. This makes it particularly simple and inexpensive to manufacture.
- the catch structure preferably has a bend in a radially inner region, so that a radial inner end of the catch structure is cup-shaped and is directed toward the shaft shoulder. This prevents leakage that is flung upwards and that flows downward along the catch structure in the direction of the shaft from dripping back onto the shaft. Instead, this portion of the leak is directed along the shaft along the pot shape of the catch structure.
- the shaft seal and the shaft grounding and the Fangvorrich device are arranged axially one behind the other.
- the direction is understood along the axis of rotation of the shaft.
- the Wellener extension can be arranged axially between the shaft seal and the safety gear.
- the catching device can also catch the abrasion of the shaft grounding.
- the catching device can be arranged axially between the shaft seal and the shaft grounding. The wave ground is therefore beyond Shaft seal and the safety gear, and therefore it does not come into contact with the leak or only slightly.
- the position of the opening can be chosen axially at a suitable point between the shaft seal and the shaft ground.
- the shaft ground is arranged on the catch structure.
- the wave structure is then carried by the catch structure.
- the shaft is thus electrically connected to the electrical reference potential in the area of the catch structure.
- the catch structure can thus itself be part of the electrical connection between the shaft and the electrical reference potential.
- the catch structure and the shaft grounding can thus form a unit that can be assembled together.
- the tear-off edge of the shaft shoulder can be arranged axially between the shaft seal and the shaft ground. This prevents leakage of the shaft seal from reaching shaft ground. This can also be used if the shaft earthing is arranged on the catch structure.
- the proposed electric machine has a rotatably drivable rotor shaft.
- the rotor shaft is connected in particular to a rotor of the electric machine, which also includes a one-piece design of the rotor and rotor shaft.
- the rotor and thus also the rotor axis can be rotated in particular by means of a stator of the electric machine which is fixed to the housing.
- the electric machine has a sealing device for sealing the rotor shaft.
- the sealing device of the electric machine is formed by the proposed sealing device. This means that any possible leakage into the interior (interior) of the electric machine can be easily removed from the rotor shaft and caught.
- the electric machine preferably has an interior in which the rotor connected to the rotor shaft is rotatably arranged.
- the rotor shaft points out of the interior on the sealing device.
- the sealing device thus seals the interior of the electric machine against an exterior on the rotor shaft.
- the safety gear (if present) and the shaft grounding as well as the proposed opening of the sealing device are arranged in particular adjacent to the wel seal in the interior of the electric machine. Thus, prevents a fluid from entering the interior of the electric machine from the outside and being distributed there in an uncontrolled manner.
- the shaft is thus electrically connected to the electrical potential.
- the proposed drive device is used to electrically drive a motor vehicle. Accordingly, the drive device has an electric machine for providing drive power for the motor vehicle.
- the drive device can in particular be designed as a drive module and, for example, be designed to be arranged on a driven axle of the motor vehicle.
- the electric machine of the drive device is formed by the proposed electric machine, that is to say it comprises the proposed sealing device.
- FIG. 1 is a partial view of a longitudinal section through an electric machine in the area of a sealing device
- Fig. 2 is a partial view three-dimensional plan view of a holder of a processing device.
- a sealing device 3 is provided for sealing an interior of the electric machine in the area of the shaft 1.
- the sealing device 3 comprises a shaft seal 4, here, for example, a radial shaft sealing ring, and an axially spaced shaft grounding 6, here, for example, a shaft grounding ring.
- the interior of the electric machine is located on the left side of the shaft seal 4 in FIG. 1.
- the shaft seal 4 and the shaft ground 6 are held in position by a holder 9 of the sealing device 3.
- the bracket 9 is formed here as a Ge housing section of the housing 2.
- This holder 9 has at least one opening 10 which is arranged axially with respect to the axis of rotation L between the wel seal 4 and the shaft ground 6.
- This opening 10 leads radially away from the shaft seal 4 and the shaft ground 6 and serves to remove particles from the shaft ground 6 on the one hand and particles from the shaft seal 4 on the other hand. This is indicated in Fig. 1 by a downward arrow at the opening 10.
- the shaft seal 4 is intended to prevent the entry of a fluid, in particular a lubricant, into the interior of the electric machine. In practice, this does not succeed in all operating conditions of the electric machine. It can happen that a leak penetrates the shaft seal 4 and flows axially along the holder 9 in the direction of the shaft ground 6 into the interior. This leakage enters the opening 10, which leads it downward directly into a reservoir 7.
- the opening 10 is therefore arranged such that this intended installation position of the sealing device 3 is below the shaft seal 4.
- the opening 10 is also arranged below a brush of the shaft ground 6, so that abrasion is also discharged from here through the opening 10 directly down into the reservoir 7.
- the sealing device 3 according to FIG. 1 also includes an optional catch device 5. It can also happen that a leakage penetrates the shaft seal 4 and flows along the shaft 1 into the interior of the electric machine. This leakage then does not normally reach the opening 10, but is prevented by the safety device 5 from spreading further in the interior. It can therefore also be referred to as a leakage catching device.
- the Fangvorrich device 5 consists in the embodiment shown of a shaft shoulder 5A on the shaft 1 and a fixed to the housing 2 catch structure 5B.
- the catch structure 5B radially surrounds the shoulder 5A, but is not in contact with it.
- the catch structure 5B thus operates without contact.
- the catch structure 5B shown consists, for example, of sheet metal or plastic.
- the shoulder 5A forms a tear-off edge for the le from, which passes through the shaft seal 4 into the interior of the electric machine.
- the shaft 1 rotates about the axis of rotation L and there is a leakage at the shaft seal 4, this reaches the shoulder 5A. There it is guided along the shoulder 5A radially outward to the tear-off edge of the shoulder 5A. The tear-off edge in connection with the centrifugal force acting on the leak at this point causes the leakage to be detached and flung away from the shoulder 5A. The leakage thrown away is caught by the catch structure 5B and to the reservoir? headed.
- the reservoir 7 is formed by the housing section which also forms the holder 9. Alternatively, the reservoir 7 can be formed by the catch structure 5B itself.
- the catch structure 5B In the radially inner region (ie in the region adjacent to the shaft 1), the catch structure 5B has a bend, so that the radial inner end of the catch structure 5B is cup-shaped and runs parallel to the shaft 1 towards the shoulder 5A. Leakage which is flung upwards and is caught there by the catch structure 5B thus flows down along the catch structure 5B and the pot shape to the reservoir 7 without dripping back onto the shaft 1.
- the catch structure 5B can, as can be seen in FIG. 1, be otherwise plate-shaped.
- the shaft ground 6 is used for the permanent electrical connection of the shaft 1 to the housing 2 as an electrical reference potential. In this way, bearings 8 for supporting the shaft 1 in the housing 2 are protected from damage which can occur on the bearings 8 due to electrical potential differences.
- the shaft ground 6 is arranged axially with respect to an axis of rotation L of the shaft 1 between the safety device 5 and the shaft seal 4. These elements 4, 5, 6 are immediately adjacent to each other. In a move away from this, however, the safety device 5 could be arranged axially between the shaft grounding 6 and the shaft sealing device 4. Here, the opening 10 is always located at a suitable location axially between the shaft seal 4 and the shaft ground 6. Axially adjacent to the shaft seal 4 and outside the interior of the electric machine is the bearing 8 for the rotatable mounting of the shaft 1 on the hous se 2, here exemplarily designed as a deep groove ball bearing. The bearing 8 is also arranged on the holder 9 designed as a housing section.
- the bearing 8 is arranged on a first diameter d1 of the shaft 1.
- the shaft seal 4 and the shaft ground 6 are arranged on another, second diameter d2 of the shaft 1.
- the shoulder 5A forms another, third diameter d3 of the shaft 1.
- d1 ⁇ d2 ⁇ d3 applies.
- FIG. 2 shows, by way of example, the holder 9 from FIG. 1 designed as a housing section for holding the shaft seal 4 and the shaft ground 6 in a three-dimensional view.
- the bracket 9 is formed by an annular local thickening of the housing 2, which carries the shaft seal 4 and the shaft grounding 6 un indirectly. This thickening surrounds the shaft 1 indicated with the axis of rotation L, which penetrates the circular opening visible in FIG. 2 in the interior of the holder 9.
- a plurality of radial openings 10 are arranged distributed over the circumference of the thickening. These each serve to remove the particles from the shaft seal 4 (here in particular in the form of leakage) and to remove the particles from the shaft ground 6 (here in particular in the form of abrasion).
- the bracket 9 also includes a rib 11 (see also Fig. 1), which is arranged around the axis of rotation L. Accordingly, there is no radial opening in it. The rib 11 prevents further radial spreading of the particles discharged through the openings 10. These accumulate at the lower end of the rib 11. The rib 11 thus forms the lower edge of the reservoir 7.
- the rib 7 has fastening points for fastening the catch structure 5B.
- attachment points are exemplary leads out as threaded holes.
- the plate-shaped catch structure 5B formed here from sheet metal or plastic can be screwed onto this.
- Attach catch structure 5B can be welded, riveted or clipped on.
- the shaft earth 6 is arranged on the catch structure 5B and there electrically connects the shaft 1 to the housing 2.
- the electrical connection is made via the shaft ground 6 and the catch structure 5B.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Sealing Devices (AREA)
- Motor Or Generator Frames (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021527237A JP7546562B2 (ja) | 2018-11-19 | 2019-10-14 | シール装置、電気機械、および駆動装置 |
| US17/293,211 US11971103B2 (en) | 2018-11-19 | 2019-10-14 | Seal device, electric machine, and drive device |
| CN201980076289.6A CN113056622B (zh) | 2018-11-19 | 2019-10-14 | 密封装置、电动机器和驱动装置 |
| KR1020217018315A KR102747282B1 (ko) | 2018-11-19 | 2019-10-14 | 밀봉 장치, 전기 기계 및 구동 장치 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018219779.2A DE102018219779A1 (de) | 2018-11-19 | 2018-11-19 | Dichtungsvorrichtung, E-Maschine und Antriebsvorrichtung |
| DE102018219779.2 | 2018-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020104110A1 true WO2020104110A1 (de) | 2020-05-28 |
Family
ID=68281422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2019/077695 Ceased WO2020104110A1 (de) | 2018-11-19 | 2019-10-14 | Dichtungsvorrichtung, e-maschine und antriebsvorrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11971103B2 (de) |
| JP (1) | JP7546562B2 (de) |
| KR (1) | KR102747282B1 (de) |
| CN (1) | CN113056622B (de) |
| DE (1) | DE102018219779A1 (de) |
| WO (1) | WO2020104110A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020212588A1 (de) * | 2020-10-06 | 2022-04-07 | Zf Friedrichshafen Ag | Getriebe für ein Kraftfahrzeug, sowie elektrischer Achsantrieb |
| DE102021203304A1 (de) * | 2021-03-31 | 2022-10-06 | Valeo Siemens Eautomotive Germany Gmbh | Elektrische Maschine mit einem Reservoir für Kühlmittelleckage |
| DE102023002836B3 (de) | 2023-07-12 | 2024-08-08 | Mercedes-Benz Group AG | Elektrische Antriebsvorrichtung für ein Kraftfahrzeug, insbesondere für einen Kraftwagen |
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| GB2219475A (en) * | 1988-05-12 | 1989-12-13 | Nippon Seiko Kk | Seal assembly for water pump bearing |
| EP3023658A1 (de) * | 2014-10-30 | 2016-05-25 | Aktiebolaget SKF | Zweiteilige ringförmige schutzabdeckung mit einer sensoranordnung für eine achsbuchse-lageranordnung eines schienenfahrzeuges und eine achsbuchse-lageranordnung mit der schutzabdeckung |
| DE102016207672A1 (de) | 2016-05-04 | 2017-11-09 | Bayerische Motoren Werke Aktiengesellschaft | Dichtungssystem für eine Welle |
| US20180100545A1 (en) * | 2015-07-22 | 2018-04-12 | Ihi Corporation | Oil seal structure and turbocharger |
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| DE1216634B (de) * | 1963-08-16 | 1966-05-12 | Goetzewerke | Abdichtung fuer Flansche, insbesondere Zylinderkoepfe |
| US3322433A (en) * | 1964-03-10 | 1967-05-30 | Minnesota Rubber Co | Sealing ring and method of making same |
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2019
- 2019-10-14 US US17/293,211 patent/US11971103B2/en active Active
- 2019-10-14 KR KR1020217018315A patent/KR102747282B1/ko active Active
- 2019-10-14 JP JP2021527237A patent/JP7546562B2/ja active Active
- 2019-10-14 CN CN201980076289.6A patent/CN113056622B/zh active Active
- 2019-10-14 WO PCT/EP2019/077695 patent/WO2020104110A1/de not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| US11971103B2 (en) | 2024-04-30 |
| US20220003267A1 (en) | 2022-01-06 |
| CN113056622B (zh) | 2022-12-23 |
| JP2022507751A (ja) | 2022-01-18 |
| DE102018219779A1 (de) | 2020-05-20 |
| CN113056622A (zh) | 2021-06-29 |
| KR102747282B1 (ko) | 2024-12-31 |
| JP7546562B2 (ja) | 2024-09-06 |
| KR20210091780A (ko) | 2021-07-22 |
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