EP3371451B1 - Hydrogerät - Google Patents

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Info

Publication number: EP3371451B1
Authority: EP; European Patent Office
Prior art keywords: hydraulic; pump; motor; tank; circuit board
Prior art date: 2015-11-06
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

Application number

EP16791390.4A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP3371451A1 (de

Inventor

Marcus CLEV

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH

Original Assignee

Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH

Priority date (The priority date 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 date listed.)

2015-11-06

Filing date

2016-11-04

Publication date

2020-05-20

2016-11-04 Application filed by Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH

2016-11-04 Priority to PL16791390T priority Critical patent/PL3371451T3/pl

2018-09-12 Publication of EP3371451A1 publication Critical patent/EP3371451A1/de

2020-05-20 Application granted granted Critical

2020-05-20 Publication of EP3371451B1 publication Critical patent/EP3371451B1/de

Status Active legal-status Critical Current

2036-11-04 Anticipated expiration legal-status Critical

Images

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
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
- F04B23/025—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir
- F04B23/028—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir the pump being mounted on top of the reservoir
- 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
- 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
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
- 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
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
- F04B23/025—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
- F15B13/0803—Modular units
- F15B13/0807—Manifolds
- F15B13/0814—Monoblock manifolds
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
- F04B53/1095—Valves linked to another valve of another pumping chamber
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
- F04C11/008—Enclosed motor pump units

Definitions

the present invention relates to a hydraulic device for a rail vehicle and in particular to an optimized arrangement of a motor-pump unit in hydraulic devices for rail vehicles.
a hydraulic device is a hydraulic control and supply unit that provides a controlled or regulated hydraulic flow for various components of the corresponding rail vehicle.
controllable valves can be formed in the hydraulic devices, which selectively activate or deactivate certain hydraulic lines in order to produce a volume flow there, wherein the hydraulic devices can be controlled via a vehicle control unit.
Hydraulic devices generally consist of three main components: a control area with a control cover, an interconnection board (control plate) and a tank area with a tank for a hydraulic fluid.
a motor and a pump usually couple to the control plate in order to pump the hydraulic fluid into the control plate.
Hydro devices are in the prior art, for example in DE 196 12 582 A1 described.
the document describes a drive unit for a vehicle in which a hydraulic pump and an electric motor are housed within a hydraulic tank. Among other things, this is advantageous for sound absorption and for simultaneously achieving improved explosion protection.
the publication GB 1399071 describes the advantageous arrangement of the motor and pump in an injection molding system, through which a reduction in the noise level during operation can be achieved.
Fig. 6 shows a first conventional hydraulic device for rail vehicles. It consists of a control area 440, a hydraulic circuit board 430 and a tank area 410. A pump 124 is arranged in the tank area 410 and a motor 122 is arranged in the control area 440. The motor 122 is connected to the pump 124 on the opposite side of the hydraulic circuit board 430 via a bushing 460 through the hydraulic circuit board 430.
the motor 122 and the pump 124 can have a common shaft that is passed directly through the bushing 460.
the pump 124 draws a liquid from the tank area 410 and pumps the hydraulic liquid through connecting channels (not in the Fig. 6 shown) in the hydraulic circuit board 430.
Various electrical or hydraulic components can also be formed on the hydraulic circuit board 430, which are electrically controlled or electrically supplied via the control region 440 (or via the tank region).
FIG. 4 shows a further conventional hydraulic device 500 with a tank area 510, a control unit 540 with integrated hydraulic circuit board 530 and an external motor-pump combination 122, 124, which is connected to the hydraulic circuit board 530 and to the tank area 510 via at least one fluid channel 520 Pump hydraulic fluid from the tank area 510 into the hydraulic circuit board 530.
a motor flange 525 is also provided to hold the motor-pump combination 122, 124.
the hydraulic devices shown have the following disadvantages.
the motor-pump combination 122, 124 takes up a lot of space on the control plate 430.
fewer components can be arranged on the control plate 430.
the passage 460 of the motor and pump shaft requires a breakthrough through the control plate 430. This breakthrough considerably reduces the control plate cross-section that can be used for the interconnection of the components and leads to complex designs for the connecting bores between the control plate 430 and the attached components (in FIGS Fig. 6 and 7 Not shown).
the special hydro device like it Fig.
control plate 530 shows, although there is a separation between the control plate 530 and the attachment of the motor-pump combination 122, 124, they require their own motor flange 525 and connecting elements 520 for transferring the volume flow from the motor flange 525 to the control plate 540, 530.
the present invention solves the above-mentioned technical problem by means of a hydraulic device according to claim 1.
the dependent claims relate to further advantageous developments.
the present invention relates to a hydraulic device for a rail vehicle, the hydraulic device comprising a tank area for a hydraulic fluid, a motor with a pump for pumping the hydraulic fluid, a hydraulic circuit board for providing hydraulic fluid paths and for receiving hydraulic components, and a control area for actuation the hydraulic components.
the tank area and the control area are arranged on opposite sides of the hydraulic circuit board, and the motor is arranged together with the pump on one side of the hydraulic circuit board.
the hydraulic device is characterized in that it further comprises a holding structure for holding the motor and the pump and the holding structure is held in the tank area and is coupled to the hydraulic circuit board, the motor and the pump not coupling directly to the hydraulic circuit board, but through the holding structure can be held independently of the hydraulic circuit board.
a liquid path is to be understood to mean all cavities through which a hydraulic liquid can be passed.
the hydraulic fluid paths mentioned comprise, on the one hand, hydraulic lines which are led to the outside, but also fluid connections which are formed within the hydraulic circuit board and, for example, provide a connection from the pump to an exemplary valve.
the hydraulic circuit board can, for example, be arranged in the housing in such a way that it separates the housing into two separate areas (the tank area and the control area).
a hydraulic control and supply unit (hydraulic device) which has an identical functionality compared to the conventional hydraulic devices, but the necessary installation space when implemented reduced or allowed in their implementation more functions that can be implemented in the installation space.
the hydraulic components comprise at least one valve and / or at least one sensor, which are electrically controllable.
the control area can be designed as a cover and have a connection unit.
the control area can also include an electrical circuit that interconnects the electrically controllable hydraulic components with the connection unit, so that the hydraulic components can be controlled from outside the housing.
the pump is arranged between the motor and the hydraulic circuit board.
the motor can also be arranged between the pump and the hydraulic circuit board.
An advantage of the first version is that the hydraulic fluid can be pumped directly from the pump into the hydraulic circuit board without the need for additional fluid lines.
An advantage of the second version is that the motor is securely held by the hydraulic circuit board, so that a mechanically more stable construction can be achieved, in particular if the motor is larger than the pump.
the pump and the motor comprise a common or two coupled rotary shaft (s), the rotary shaft (s) being / are spaced apart from the hydraulic circuit board.
the rotary shaft of the pump and / or the rotary shaft of the motor do not couple to the hydraulic circuit board and thus cannot directly transmit vibrations to the hydraulic circuit board.
an intermediate space is formed between the rotary shaft (s) that suppresses the exemplary negative influences of vibrations on sensors or similar components.
the pump is arranged together with the motor in the tank area.
An advantage of this embodiment is that the motor can be cooled together with the pump by the liquid in the tank.
a very efficient volume utilization is achieved as a result, since the tank volume only has to be increased to the extent that the volume of the combination of pump and motor comprises together.
the tank area comprises a tank for storing the hydraulic fluid and the pump is accommodated in the tank together with the motor.
the hydraulic device comprises a holding structure for holding the motor and / or the pump.
the holding structure is held in the control area or in the tank area and couples to the hydraulic circuit board.
the holding structure is part of the tank area or part of the control area.
the holding structure couples to the hydraulic circuit board or the pump is connected to the hydraulic circuit board via a line.
the tank area comprises a tank housing and the control area comprises a cover, wherein the holding structure can be attached to the tank housing or the cover.
the pump is arranged in the tank area and the motor is fastened to an outer wall of the tank area.
the motor and the pump are optionally arranged on the hydraulic circuit board next to the tank area.
Another embodiment which is not the subject of the present invention, also relates to a hydraulic device for a rail vehicle with a tank area for a hydraulic fluid, a hydraulic circuit board for providing hydraulic fluid paths and for receiving hydraulic components and a control area for controlling the hydraulic Components, wherein the tank area and the control area are arranged on opposite sides of the hydraulic circuit board.
this hydraulic device comprises a pump for pumping the hydraulic fluid, which is arranged in the tank area.
An attachment option is optionally provided on the tank area in order to attach a motor for operating the pump to an outer surface of the tank area.
the present invention also relates to a rail vehicle with one of the hydraulic devices described above.
Fig. 1 shows a hydraulic device for a rail vehicle, the hydraulic device comprising the following components: a tank area 110 for a hydraulic fluid (not shown), a motor 122 with a pump 124 for pumping the hydraulic fluid, a hydraulic circuit board 130 for providing hydraulic fluid paths 132 , 133 and to accommodate hydraulic Components 134, a control area 140 for controlling the hydraulic components 134 and a housing 150.
the tank area 110, the hydraulic circuit board 130 and the control area 140 are accommodated in the housing 150, the tank area 110 and the control area 140 on opposite sides and the motor 122 is arranged together with the pump 124 on one side of the hydraulic circuit board 130.
the motor 122 On the left side of the Fig. 1 the motor 122 is arranged together with the pump 124 in the tank area 110, while on the right side the motor 122 with the pump 124 is arranged in the control area 140.
the hydraulic components 134 can comprise, for example, valves and / or sensors that open or close the hydraulic flow paths 132, 133 or take measurements on the hydraulic fluid (for example pressure measurements).
the hydraulic flow paths 132, 133 can be internal flow paths 132 between the components on the hydraulic circuit board 130 or else further hydraulic flow paths 133 that couple to an external hydraulic line (outside the housing).
the valves can be, for example, electromagnetically controlled valves which are connected to a connection unit 144 via an electrical line 142, the connection unit 144 establishing a connection between the inner region of the housing 150 and the outer region.
the hydraulic device can be electrically controlled by a control unit of the rail vehicle via the connection unit 144, for example to read sensor data from the sensors or to control the valves via corresponding signals.
the hydraulic circuit board 130 divides the interior of the housing 150 into two sections, for example.
the tank area 110 which in particular comprises the tank itself, is accommodated in one section, while the control area 140 is formed in the other area.
the motor 122 together with the pump 124 can, for example, be arranged directly in the tank (see left side of FIG Fig. 1 ) so that the hydraulic fluid can flow around it. This offers the advantage that the hydraulic fluid is also used for cooling provides the motor 122 as well as for the pump 124.
the accommodation of the motor 122 and the pump 124 in the tank area 110 also offers the advantage that more space is available in the control area 140 for additional or further hydraulic or non-hydraulic components.
the control area 140 can, however, also be selected to be correspondingly smaller.
the additional space required in the tank area 110 which must also be available due to the introduction of the motor 122 and the pump 124, is only limited to the volume of the motor 122 and the volume of the pump 124 itself, so that an additional additional space is required a minimum is limited.
Moving the engine to the tank area can also reduce the height of the control cover.
the tank cap can be enlarged by this amount. This means that the overall height of the device does not change and the available oil volume in the tank can be kept almost constant.
Fig. 2 shows exemplary embodiments in which the motor 122 and the pump 124 are accommodated in the tank area 110.
the pump 124 is arranged between the motor 122 and the hydraulic circuit board 130 (see left side on the Fig. 2 ) or the motor 122 is arranged between the pump 124 and the hydraulic circuit board 130 (see right side of FIG Fig. 2 ).
the shaft that passes through motor 122 and pump 124 is not inserted into hydraulic circuit board 130.
Fig. 3 shows further exemplary embodiments in which the motor 122 and the pump 124 do not couple directly to the hydraulic circuit board 130, but are held by a holding structure 115, 145.
the holding structure 115, 145 can be, for example, a holding structure 115 of the tank area 110 or a holding structure 145 of the control area 140.
the holding structure 115 is part of the tank area 110, so that the holding structure 110 holds the motor 122 and the pump 124 in the tank area 110.
the support structure 115 may also provide a connection 116 to the hydraulic circuit board 130 to direct the hydraulic fluid from the pump 124 to the hydraulic circuit board 130.
another solution outside of the holding structure for hydraulic connections can also be used (for example a pipe or hose connection as in the Figure 4C is shown).
the holding structure 145 is part of the control area 140 and is held, for example, by a control cover.
an additional hydraulic flow path 146 from the pump 124 to the hydraulic circuit board 130 is formed.
additional pipe or hose connections can also be formed in order to establish the hydraulic flow path.
a connection to the tank is formed, which in the Fig. 3 is not shown.
Fig. 4 shows further exemplary embodiments in which the motor 122 and the pump 124 are arranged at different positions in the tank area 110.
the tank area 110 has a housing 150 in which the exemplary tank is accommodated (not shown in the figure).
the motor 122 is attached to the housing 150 and the pump 124 can be held by the motor 122 accordingly.
a line is formed between the pump 124 and the hydraulic circuit board 130, which is in the Figure 4A cannot be seen.
the Figure 4B shows a further possibility of fastening the motor 122 and the pump 124 on a side wall of the housing 150 and not on a wall of the housing 150 opposite the hydraulic circuit board 130 (as in FIG Figure 4A ).
FIG. 12 shows an embodiment in which the holder structure 115 of the tank area 110 does not provide a hydraulic channel or flow path in order to pump the hydraulic fluid pumped by the pump 124 to the hydraulic circuit board 130.
a liquid line 118 is formed as a connection between the pump 124 and the hydraulic circuit board 130.
Hydraulic line 118 can also be used in the same manner in FIGS 4A and 4B be trained, even if it is not visible there.
the motor 122 and / or the pump 124 can be arranged in the tank or next to it.
the tank region 110 may have a cavity between the housing 150 and the liquid tank that can accommodate the motor 122 and the pump 124.
the Fig. 5 shows further exemplary embodiments in which at least the motor 122 is arranged outside the housing 150 of the tank area 110.
the motor 122 is attached to an outer surface of the housing 150.
a corresponding fastening option can be formed on the housing 150 of the tank area 110.
Motor 122 again couples to pump 124, which in this exemplary embodiment is inside housing 150 is formed and can be located, for example, in the tank itself or in a corresponding cavity in the tank area 110.
the Figure 5B shows an embodiment in which the motor 122 together with the pump 124 is arranged next to the tank area 110, ie outside the housing 150 on the hydraulic circuit board 130.
a space 119 may be formed between the motor 122 and the housing 150.
the Figure 5C shows an embodiment in which the housing 150 of the tank area 110 has a recess which can accommodate the motor 122.
the motor 122 again couples directly or via a coupling to the pump 124, which in this exemplary embodiment is fastened within the housing 150, that is to say to a bottom of the recess.
the cutout can be chosen to be large enough to accommodate the motor 122 completely or at least partially, so that it does not mount laterally or at the bottom when it is installed in the rail vehicle (as is the case in FIG Figure 5A can be seen) protrudes.
the motor may also be attached to the housing 150 on a side wall of the housing (i.e., not opposite the hydraulic circuit board 130).
Exemplary embodiments of the present invention likewise relate to a hydraulic device which does not have a motor 122, but merely provides a fastening possibility in order to fasten the motor 122 to an outer housing of the tank area 110, for example.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Details Of Reciprocating Pumps (AREA)

EP16791390.4A 2015-11-06 2016-11-04 Hydrogerät Active EP3371451B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
PL16791390T PL3371451T3 (pl)	2015-11-06	2016-11-04	Agregat hydrauliczny

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE102015119055.9A DE102015119055B4 (de)	2015-11-06	2015-11-06	Hydrogerät
PCT/EP2016/076706 WO2017077060A1 (de)	2015-11-06	2016-11-04	Hydrogerät

Publications (2)

Publication Number	Publication Date
EP3371451A1 EP3371451A1 (de)	2018-09-12
EP3371451B1 true EP3371451B1 (de)	2020-05-20

Family

ID=57241088

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP16791390.4A Active EP3371451B1 (de)	2015-11-06	2016-11-04	Hydrogerät

Country Status (6)

Country	Link
US (1)	US11085428B2 (pl)
EP (1)	EP3371451B1 (pl)
CN (1)	CN108431412B (pl)
DE (1)	DE102015119055B4 (pl)
PL (1)	PL3371451T3 (pl)
WO (1)	WO2017077060A1 (pl)

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* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102018126114A1 (de) *	2018-10-19	2020-04-23	Robert Bosch Gmbh	Hydraulikaggregat
DE102019112677A1 (de)	2019-05-15	2020-11-19	Knorr-Bremse Systeme für Schienenfahrzeuge GmbH	Hydraulikversorgungssystem für ein Fahrzeug
EP4065851A4 (en) *	2019-12-14	2022-12-21	KTI Hydraulics Inc.	HYDRAULIC POWER UNITS WITH SUBMERGED MOTORS
GB2604609A (en) *	2021-03-08	2022-09-14	Bamford Excavators Ltd	Hydraulic pump system

Citations (1)

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EP1413757A2 (de) *	2002-10-24	2004-04-28	Voith Turbo GmbH & Co. KG	Motorpumpenaggregat

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2015
- 2015-11-06 DE DE102015119055.9A patent/DE102015119055B4/de not_active Expired - Fee Related
2016
- 2016-11-04 US US15/773,906 patent/US11085428B2/en active Active
- 2016-11-04 PL PL16791390T patent/PL3371451T3/pl unknown
- 2016-11-04 CN CN201680077979.XA patent/CN108431412B/zh active Active
- 2016-11-04 WO PCT/EP2016/076706 patent/WO2017077060A1/de active Application Filing
- 2016-11-04 EP EP16791390.4A patent/EP3371451B1/de active Active

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EP1413757A2 (de) *	2002-10-24	2004-04-28	Voith Turbo GmbH & Co. KG	Motorpumpenaggregat

Also Published As

Publication number	Publication date
CN108431412A (zh)	2018-08-21
US11085428B2 (en)	2021-08-10
DE102015119055B4 (de)	2019-05-09
EP3371451A1 (de)	2018-09-12
CN108431412B (zh)	2021-01-01
US20180320674A1 (en)	2018-11-08
DE102015119055A1 (de)	2017-05-11
PL3371451T3 (pl)	2020-11-16
WO2017077060A1 (de)	2017-05-11

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