DE4118950A1 - Motor pump set with motion converting mechanism - transforming rotary to translatory movement process with eccentric device comprising drive shaft movable in housing - Google Patents
Motor pump set with motion converting mechanism - transforming rotary to translatory movement process with eccentric device comprising drive shaft movable in housingInfo
- Publication number
- DE4118950A1 DE4118950A1 DE19914118950 DE4118950A DE4118950A1 DE 4118950 A1 DE4118950 A1 DE 4118950A1 DE 19914118950 DE19914118950 DE 19914118950 DE 4118950 A DE4118950 A DE 4118950A DE 4118950 A1 DE4118950 A1 DE 4118950A1
- Authority
- DE
- Germany
- Prior art keywords
- drive shaft
- bearing
- housing
- eccentric
- drive unit
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims 2
- 230000001131 transforming effect Effects 0.000 title claims 2
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 244000145841 kine Species 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4018—Pump units characterised by their drive mechanisms
- B60T8/4022—Pump units driven by an individual electric motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Reciprocating Pumps (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Die Erfindung betrifft ein Antriebsaggregat, insbesondere ein Motorpumpenaggregat, nach dem Oberbegriff des Anspruchs 1.The invention relates to a drive unit, in particular a Motor pump unit, according to the preamble of claim 1.
Antriebsaggregate mit einer Vorrichtung zur Umwandlung von ro tatorischen in transiatorischen, beispielsweise oszillierenden Bewegungsabläufen, finden im allgemeinen Maschinenbau ein vielfältiges Anwendungsspektrum. Im besonderen kommt der Ver wendung derartiger Antriebsaggregate in der Industriehydrau lik, der Fahrzeughydraulik und der Verfahrenstechnik eine be sondere Stellung zu, wobei selbst bei recht unterschiedlichen Einsatzbedingungen die Kinematik der Aggregate mit hoher Prä zision dauerhaft zu steuern ist.Drive units with a device for converting ro tatorial in transitional, for example oscillating Movement sequences are found in general mechanical engineering diverse range of applications. In particular, the Ver Use of such drive units in industrial hydraulics lik, the vehicle hydraulics and the process engineering a be special position, even with quite different Operating conditions the kinematics of the units with high pre is to be controlled permanently.
Beispielsweise bedarf es zur Applikation für den Fahrzeugbe reich erhebliche technisch-wirtschaftliche Überlegungen, um den teilweise recht unterschiedlichen Spezifikationen bzgl. Leistungsdichte, Zuverlässigkeit, Preiswürdigkeit, Service freundlichkeit und Umweltverträglichkeit im Sinne einer Ge räuscharmut gerecht zu werden.For example, it requires application for the vehicle rich technical-economic considerations the sometimes quite different specifications regarding Power density, reliability, value for money, service friendliness and environmental compatibility in the sense of a Ge to meet low noise levels.
Hierzu sei beispielsweise auf die deutsche Patentanmeldung mit dem amtl. Az. P 40 27 848.4 verwiesen, wonach ein von einem elektrischen Antriebsaggregat betätigtes Pumpenaggregat Druck mittel einer schlupfgeregelten Bremsanlage zuführt. Die An triebswelle des Elektromotors verfügt am Wellenende über einen Exzenterzapfen, an dem sich über ein Nadellager zwei Pumpkol ben einer Radialkolbenpumpen abstützen. Bei Drehung der in Wälzlagern geführten Antriebswelle beschreibt sodann der außermittig am Wellenstumpf angebrachte Zapfen einer Exzenter bahnkurve, die zur oszillierenden Bewegung der Pumpenkolben führt.For this purpose, for example, the German patent application to the official Az. P 40 27 848.4, according to which one of one electric drive unit operated pump unit pressure by means of a slip-controlled brake system. The An the drive shaft of the electric motor has a Eccentric pin on which two pump pistons are attached via a needle bearing Support a radial piston pump. When the in Rolling bearings guided drive shaft then describes the Pins of an eccentric attached to the stub shaft orbit curve, which leads to the oscillating movement of the pump pistons leads.
Die gegenwärtige Konstruktion ist in Hinsicht auf die Ober flächenbehandlung der zunächst schroffen, spannungsfördernden Übergänge zwischen dem Antriebswellenrohling und dem eigent lichen Exzenterzapfen und dem aus der Beanspruchung der Kine matik resultierenden nicht unerheblichen baulichen Maßnahmen als optimierungsbedürftig anzusehen.The current construction is regarding the upper surface treatment of the initially rugged, tension-promoting Transitions between the drive shaft blank and the actual eccentric pin and from the strain on the kine resulting in not insignificant structural measures to be seen as in need of optimization.
Daher ist es die Aufgabe der Erfindung, ein Antriebsaggregat der im Oberbegriff genannten Gattung dahingehend zu verbes sern, daß unter Einhaltung geringster Herstellkosten ein un eingeschränkt betriebssicheres, kleinbauendes und geräusch armes Antriebsaggregat verwirklicht werden kann.It is therefore the object of the invention to provide a drive unit of the genus mentioned in the preamble Ensure that an un limited reliable, small-sized and noise poor drive unit can be realized.
Diese Aufgabe wird erfindungsgemäß durch die den Patentan spruch 1 kennzeichnenden Merkmale gelöst, wonach die Antriebs welle über ihre gesamte Länge exzentrisch in der Lagerung des Gehäuses geführt wird. Die Erfindung basiert somit auf dem Ge danken, eine glatte Antriebswelle mit konstantem Querschnitt in einer exzentrische Lagerung zu führen. Damit unterbleiben unzulässige mechanische Spannungen, die infolge Kerbwirkungen üblicherweise in den schroffen Übergängen zwischen der Welle und dem Exzenterzapfen auftreten sowie die hierfür bis heute gebräuchliche kostenintensive Oberflächenbehandlungsmaßnahme. Ferner verlagert sich die Eigenresonanz der Antriebswelle zur tieferen Frequenzlage, da die Antriebswelle infolge der redu zierten Spannungen im Durchmesser kleiner und damit leichter konstruiert werden kann. Dies führt außerdem zu einer vorteil haften Geräuschreduzierung des Antriebsaggregats.This object is achieved by the patent Proof 1 characteristic resolved, after which the drive shaft over its entire length eccentrically in the bearing of the Housing is guided. The invention is thus based on the Ge thank you, a smooth drive shaft with a constant cross-section to lead in an eccentric storage. Do not do so impermissible mechanical stresses resulting from notch effects usually in the jagged transitions between the shaft and the eccentric pin occur, as well as those for this to this day common cost-intensive surface treatment measure. Furthermore, the natural resonance of the drive shaft shifts to lower frequency range, since the drive shaft due to the redu graced tensions smaller in diameter and thus lighter can be constructed. This also leads to an advantage adhere to noise reduction of the drive unit.
Um eine möglichst präzise, reibungsminimierte und wartungs freie Führung der Antriebswelle im Gehäuse sicherzustellen, sind gemäß dem Merkmal des Anspruchs 2 und 3 zur Aufnahme der Antriebswelle zwei exzentrisch geformte Lagerringe vorgesehen, die vorzugsweise über mehrere Wälzkörper zweier Wälzlager von äußeren, im Gehäuse befestigten Lagerringen geführt sind.To be as precise, friction-minimized and maintenance as possible ensure free guidance of the drive shaft in the housing, are according to the feature of claims 2 and 3 for receiving the Drive shaft provided two eccentrically shaped bearing rings, which preferably over several rolling elements of two rolling bearings from outer, mounted in the housing bearing rings.
Um einen Drehwinkelversatz der beiden exzentrischen Lagerringe während des Betriebs auszuschließen, ist gemäß Anspruch 4 auf eine ausreichende Preßpassung der Lagerringe auf der Welle zu achten.By an angular displacement of the two eccentric bearing rings Exclude during operation, according to claim 4 a sufficient interference fit of the bearing rings on the shaft respect, think highly of.
Eine besonders billige Ausführungsform zur Führung der An triebswelle erhält man gemäß Anspruch 5, wonach die exzentri schen Lagerringe als Gleitlager ausgeführt sind und mit der Drehfrequenz der Welle unmittelbar im Gehäuse rotieren. Als Gleitmittel zwischen den Lagerringen und dem Gehäuse kann hierzu ein Dauerschmiermittel, eine spezielle Gleitlagerbe schichtung oder ggf. auch Tropf- oder auch Druckölschmierung vorgesehen werden.A particularly cheap embodiment for guiding the An drive shaft is obtained according to claim 5, according to which the eccentric the bearing rings are designed as plain bearings and with the Rotate the shaft's rotational frequency directly in the housing. As Lubricant between the bearing rings and the housing can a permanent lubricant, a special plain bearing stratification or if necessary also drip or pressure oil lubrication be provided.
Eine weitere funktionsrelevante Überlegung der Erfindung geht aus den Merkmalen der Ansprüche 6 und 7 hervor, wonach auf exakte Einhaltung einer gleichen Exzentrizität der im Wellen endbereich angeordneten Lagerringe zu achten ist. Zu beachten bleibt, daß nur bei extremen Winkelfehlern und damit beim Auf treten eines Versatzes der exzentrischen Lagerungen nach Lage und Richtung zueinander, zusätzlich eine Biegebeanspruchung der Welle hervorgerufen wird. Another functionally relevant consideration of the invention goes from the features of claims 6 and 7, according to exact adherence to an equal eccentricity in the waves bearing rings must be observed. To be noted remains that only with extreme angular errors and thus when opening an offset of the eccentric bearings occurs by location and direction to each other, additionally a bending stress the wave is caused.
Die zweckmäßige Ausgestaltung des Erfindungsgedankens gemäß Anspruch 8 sieht vor, alle zwischen den beiden exzentrischen Lagerringen befindlichen Komponenten der Antriebswelle um das gleiche Exzentrizitätsmaß und um den gleichen Richtungswinkel gemäß der Exzentrizität der Welle zu verlagern. Damit ist u. a. ein konstanter Luftspalt zwischen Rotor- und Statorwicklung, bzw. zwischen Anker- und Polschuh, jederzeit bei Rotation ge währleistet.The appropriate design of the inventive concept according to Claim 8 provides all between the two eccentric Components of the drive shaft located around the bearing rings same eccentricity measure and around the same direction angle shift according to the eccentricity of the shaft. So u. a. a constant air gap between the rotor and stator windings, or between anchor and pole shoe, at any time during rotation ensures.
Durch die in den Unteransprüchen aufgeführten Maßnahmen sind sinnvolle Ausbildungen der Erfindung angegeben. Weitere Merk male und Vorteile der Erfindung werden nachfolgend anhand ei ner Zeichnung näher dargestellt und erläutert.By the measures listed in the subclaims sensible embodiments of the invention specified. Further remarks Male and advantages of the invention are based on egg ner drawing shown and explained.
Die Fig. 1 zeigt einen Längsschnitt durch das erfindungsge mäße Antriebsaggregat, das angeflanscht an eine Radialkolben pumpe 8 als Motorpumpenaggregat, beispielsweise für schlupfge regelte Bremsanlagen, Verwendung findet. Das Antriebsaggregat 9 weist ein topfförmiges Gehäuse 2′ auf, das als Dünn blech-Tiefziehteil hergestellt ist. In dem Gehäuseboden befin det sich ein erstes, aus einem exzentrischen Lagerring 31, aus Lagerkugeln und äußerem Lagerring 5′ gebildetes Wälzlager. In den exzentrischen Lagerring 3′ eingepreßt ist der Wellenstumpf der Antriebswelle 1 enthalten. Der hierzu abgewandte weitere Wellenstumpf nimmt ebenfalls ein mit einem exzentrischen La gerring 3 versehenes Wälzlager auf, das in ein massives Gußge häuse 2 eingepreßt ist. Dieses Gehäuse 2 bildet zusammen mit dem topfförmigen Gehäuse 2′ eine geschlossene Einheit eines Gleichstrommotors. Als weiteres Unterscheidungsmerkmal dieses Elektromotors gegenüber herkömmlichen Konstruktionen weisen die stromführenden Komponenten der Antriebswelle 1, z. B. des sen Anker 6 und Kollektor 7, gegenüber der Welle ein gleiches Exzentrizitätsmaß sowohl nach Betrag und Richtung auf, ebenso wie die inneren Lagerringe 3, 3′ der Wälzlager, so daß ein konstanter Luftspalt zwischen dem Anker 6 und den im topfför migen Gehäuse 2′ befestigten Polschuhen 9 eingehalten ist. Folglich vollzieht bei Stromerregung des Elektromotors die An triebswelle 1 mit ihren Komponenten eine Exzenterbewegung, die über den in das Pumpengehäuse hineinragenden Wellenstumpf auf die radial zur Antriebswelle 1 angeordneten Pumpkolben 10 übertragen wird. Fig. 1 shows a longitudinal section through the erfindungsge Permitted drive assembly, the pump is flanged to a radial piston 8 as a motor pump assembly, for example for braking systems schlupfge regulated, is used. The drive unit 9 has a cup-shaped housing 2 ', which is made as a thin sheet metal deep-drawn part. In the housing bottom is a first det, from an eccentric bearing ring 31 , bearing balls and outer bearing ring 5 'formed roller bearing. In the eccentric bearing ring 3 'pressed in the stub shaft of the drive shaft 1 is included. The further shaft stub facing away from this also receives a roller bearing provided with an eccentric La gerring 3 , which housing is pressed into a solid casting 2 . This housing 2 forms together with the cup-shaped housing 2 'a closed unit of a DC motor. As a further distinguishing feature of this electric motor compared to conventional designs, the current-carrying components of the drive shaft 1 , for. B. the sen armature 6 and collector 7 , opposite the shaft an equal measure of eccentricity both in terms of amount and direction, as well as the inner bearing rings 3 , 3 'of the rolling bearing, so that a constant air gap between the armature 6 and in the pot-shaped housing 2 'attached pole pieces 9 is observed. Consequently, with current excitation of the electric motor, the drive shaft 1 with its components performs an eccentric movement which is transmitted to the pump piston 10 arranged radially to the drive shaft 1 via the shaft stub projecting into the pump housing.
Durch die Erfindung ist sichergestellt, daß bei minimalem Fer tigungsaufwand, bei reduziertem Werkstoffbedarf infolge gerin gerer Werkstoffbeanspruchung und damit verkleinerbarem Wellen durchmesser, eine größtmögliche Funktionssicherheit des Aggre gats erreicht werden kann, die sich überdies durch einen äußerst geräuscharmen Motorlauf auszeichnet. Damit ist die Voraussetzung für ein besonders billig und kompaktbauendes An triebsaggregat geschaffen, ohne grundlegende Veränderungen ge genüber der bekannten Konstruktion vornehmen zu müssen.The invention ensures that with minimal Fer effort, with reduced material requirements as a result lower material stress and thus shrinkable waves diameter, the greatest possible functional reliability of the unit gats can be achieved, which is also characterized by a extremely quiet running. So that's it Prerequisite for a particularly cheap and compact building drive unit created without any fundamental changes to have to make compared to the known construction.
BezugszeichenlisteReference list
1 Antriebswelle
2, 2′ Gehäuse
3, 3′ exzentrische Lagerung
4, 4′ Wälzlager
5, 5′ äußerer Lagerring
6 Anker
7 Kollektor
8 Radialkolbenpumpe
9 Antriebsaggregat
10 Pumpkolben
E Exzentrizität 1 drive shaft
2, 2 ' housing
3, 3 ′ eccentric bearing
4, 4 ′ rolling bearings
5, 5 ' outer bearing ring
6 anchors
7 collector
8 radial piston pump
9 drive unit
10 pump pistons
E eccentricity
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19914118950 DE4118950A1 (en) | 1991-06-08 | 1991-06-08 | Motor pump set with motion converting mechanism - transforming rotary to translatory movement process with eccentric device comprising drive shaft movable in housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19914118950 DE4118950A1 (en) | 1991-06-08 | 1991-06-08 | Motor pump set with motion converting mechanism - transforming rotary to translatory movement process with eccentric device comprising drive shaft movable in housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4118950A1 true DE4118950A1 (en) | 1993-02-11 |
Family
ID=6433542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19914118950 Withdrawn DE4118950A1 (en) | 1991-06-08 | 1991-06-08 | Motor pump set with motion converting mechanism - transforming rotary to translatory movement process with eccentric device comprising drive shaft movable in housing |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4118950A1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994027045A1 (en) * | 1993-05-12 | 1994-11-24 | Itt Automotive Europe Gmbh | Electromotor-pump assembly |
| DE4331626A1 (en) * | 1993-06-17 | 1995-03-23 | Teves Gmbh Alfred | Electrical machine for converting electrical and mechanical energy, in particular an electrical motor to which radial force is applied in order to drive the pumps |
| DE4331625A1 (en) * | 1993-09-17 | 1995-03-23 | Teves Gmbh Alfred | Electrical machine for converting electrical and mechanical energy, in particular an electrical motor to which radial force is applied in order to drive pumps |
| DE4444646A1 (en) * | 1994-12-15 | 1996-06-20 | Teves Gmbh Alfred | Piston pump |
| DE19650275A1 (en) * | 1996-12-04 | 1998-06-10 | Teves Gmbh Alfred | Piston pump driven by electric motor especially for radial piston pumps |
| DE19728801A1 (en) * | 1997-07-05 | 1999-01-07 | Itt Mfg Enterprises Inc | Motor-driven unit |
| US5895207A (en) * | 1993-06-17 | 1999-04-20 | Itt Automotive Europe, Gmbh | Electric motor-pump assembly |
| DE19802043A1 (en) * | 1997-11-21 | 1999-05-27 | Itt Mfg Enterprises Inc | Piston pump with at least two pump cylinders located in pump housing |
| WO1999049215A1 (en) * | 1998-03-26 | 1999-09-30 | Robert Bosch Gmbh | Pump unit |
| DE4315826B4 (en) * | 1993-05-12 | 2006-11-09 | Continental Teves Ag & Co. Ohg | Motor-pump assembly |
| DE102019133966A1 (en) * | 2019-12-11 | 2021-06-17 | Schaeffler Technologies AG & Co. KG | Hydraulic pump actuator driven by an electric motor |
| WO2022228606A1 (en) * | 2021-04-28 | 2022-11-03 | Schaeffler Technologies AG & Co. KG | Electric-motor-driven hydraulic pump actuator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1064052A (en) * | 1965-03-31 | 1967-04-05 | V E B Schwermaschb Ernst Thalm | Adjustable eccentric |
| AT325074B (en) * | 1971-01-16 | 1975-10-10 | Indel Spa | COMPRESSOR UNIT FOR COOLING SYSTEMS |
| US4900237A (en) * | 1988-11-02 | 1990-02-13 | Carrier Corporation | Rolling rotor motor balancing means |
-
1991
- 1991-06-08 DE DE19914118950 patent/DE4118950A1/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1064052A (en) * | 1965-03-31 | 1967-04-05 | V E B Schwermaschb Ernst Thalm | Adjustable eccentric |
| AT325074B (en) * | 1971-01-16 | 1975-10-10 | Indel Spa | COMPRESSOR UNIT FOR COOLING SYSTEMS |
| US4900237A (en) * | 1988-11-02 | 1990-02-13 | Carrier Corporation | Rolling rotor motor balancing means |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994027045A1 (en) * | 1993-05-12 | 1994-11-24 | Itt Automotive Europe Gmbh | Electromotor-pump assembly |
| DE4315826C5 (en) * | 1993-05-12 | 2012-04-05 | Continental Teves Ag & Co. Ohg | Motor-pump assembly |
| DE4315826B4 (en) * | 1993-05-12 | 2006-11-09 | Continental Teves Ag & Co. Ohg | Motor-pump assembly |
| DE4331626B4 (en) * | 1993-06-17 | 2006-02-02 | Continental Teves Ag & Co. Ohg | Electrohydraulic unit for the conversion of electrical energy into mechanical energy |
| DE4331626A1 (en) * | 1993-06-17 | 1995-03-23 | Teves Gmbh Alfred | Electrical machine for converting electrical and mechanical energy, in particular an electrical motor to which radial force is applied in order to drive the pumps |
| US5895207A (en) * | 1993-06-17 | 1999-04-20 | Itt Automotive Europe, Gmbh | Electric motor-pump assembly |
| DE4331625A1 (en) * | 1993-09-17 | 1995-03-23 | Teves Gmbh Alfred | Electrical machine for converting electrical and mechanical energy, in particular an electrical motor to which radial force is applied in order to drive pumps |
| DE4444646A1 (en) * | 1994-12-15 | 1996-06-20 | Teves Gmbh Alfred | Piston pump |
| US5865090A (en) * | 1994-12-15 | 1999-02-02 | Itt Manufacturing Enterprises, Inc. | Piston pump |
| DE19650275A1 (en) * | 1996-12-04 | 1998-06-10 | Teves Gmbh Alfred | Piston pump driven by electric motor especially for radial piston pumps |
| DE19728801A1 (en) * | 1997-07-05 | 1999-01-07 | Itt Mfg Enterprises Inc | Motor-driven unit |
| DE19802043A1 (en) * | 1997-11-21 | 1999-05-27 | Itt Mfg Enterprises Inc | Piston pump with at least two pump cylinders located in pump housing |
| WO1999049215A1 (en) * | 1998-03-26 | 1999-09-30 | Robert Bosch Gmbh | Pump unit |
| DE102019133966A1 (en) * | 2019-12-11 | 2021-06-17 | Schaeffler Technologies AG & Co. KG | Hydraulic pump actuator driven by an electric motor |
| WO2021115524A1 (en) * | 2019-12-11 | 2021-06-17 | Schaeffler Technologies AG & Co. KG | Electric-motor-driven hydraulic pump actuator |
| WO2022228606A1 (en) * | 2021-04-28 | 2022-11-03 | Schaeffler Technologies AG & Co. KG | Electric-motor-driven hydraulic pump actuator |
| US12055140B2 (en) | 2021-04-28 | 2024-08-06 | Schaeffler Technologies AG & Co. KG | Electric-motor-driven hydraulic pump actuator |
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| OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: ITT AUTOMOTIVE EUROPE GMBH, 60488 FRANKFURT, DE |
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| 8141 | Disposal/no request for examination |