DE19725240A1 - Pressure medium storage for hydraulic sets of vehicle electronic braking systems - Google Patents
Pressure medium storage for hydraulic sets of vehicle electronic braking systemsInfo
- Publication number
- DE19725240A1 DE19725240A1 DE1997125240 DE19725240A DE19725240A1 DE 19725240 A1 DE19725240 A1 DE 19725240A1 DE 1997125240 DE1997125240 DE 1997125240 DE 19725240 A DE19725240 A DE 19725240A DE 19725240 A1 DE19725240 A1 DE 19725240A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- pressure medium
- accumulator
- pressure
- medium accumulator
- 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- Withdrawn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
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- B60T8/42—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 having expanding chambers for controlling pressure, i.e. closed systems
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/06—Applications or arrangements of reservoirs
-
- 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
- B60T8/36—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 including a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
- B60T8/368—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units combined with other mechanical components, e.g. pump units, master cylinders
-
- 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
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/24—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with rigid separating means, e.g. pistons
-
- 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
- F15B2201/00—Accumulators
- F15B2201/20—Accumulator cushioning means
- F15B2201/21—Accumulator cushioning means using springs
-
- 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
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
- F15B2201/312—Sealings therefor, e.g. piston rings
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
Die Erfindung betrifft einen Druckmittelspeicher, insbesondere zum Einsatz in Hydraulikaggregaten von elektronischen Bremsen systemen für Kraftfahrzeuge. Aus der DE 42 02 905 A1 ist ein Druckmittelspeicher für hydraulische Bremsanlagen bekannt, dessen Kolben in einer Zylinderbohrung axial beweglich einge baut und mit einer Feder gegen eine Verschlußkappe mit der die Zylinderbohrung verschlossen ist, abgestützt wird. Die Ver schlußkappe ist mittels eines Sprengrings in der Zylinderboh rung befestigt und durch eine Abdeckkappe verdeckt. Der Kolben ist als topfförmiges Bauteil ausgeführt, bei dem die dem Topf boden abgewandten äußeren Topfwände als Kolbenführung am Um fang der Zylinderbohrung anliegen. Die Feder ist in den Topf eingelegt und wird durch seine Innenwände geführt. Die Abdich tung des Kolbens gegenüber der Gehäusewand geschieht mittels eines Dichtrings.The invention relates to a pressure medium reservoir, in particular for use in hydraulic units of electronic brakes systems for motor vehicles. From DE 42 02 905 A1 is a Pressure fluid accumulator known for hydraulic brake systems, whose piston is axially movable in a cylinder bore builds and with a spring against a cap with the Cylinder bore is closed, is supported. The Ver end cap is by means of a snap ring in the cylinder bore fixed and covered by a cover cap. The piston is designed as a pot-shaped component in which the pot outer pot walls facing away from the floor as a piston guide on the um beginning of the cylinder bore. The feather is in the pot inserted and is guided through its inner walls. The Abdich tion of the piston against the housing wall is done by means of a sealing ring.
Durch die Topfform des Kolbens wird in radialer Richtung in der Dicke der Topfwände Bauraum benötigt, der bei Integration des Druckmittelspeichers in ein Hydraulikaggregat dieses ver größert und damit erschwert. Die aus Stahl gefertigten Ein zelteile des Druckmittelspeichers erhöhen zusätzlich sein Ge wicht.The pot shape of the piston is in the radial direction The thickness of the pot walls requires installation space, that for integration of the pressure fluid reservoir in a hydraulic unit this ver enlarged and thus difficult. The made of steel parts of the pressure fluid reservoir also increase its ge important.
Aufgabe der Erfindung ist es daher, einen leichten und auf kleinstem Raum in ein Hydraulikaggregat integrierbaren Druck mittelspeicher anzubieten. The object of the invention is therefore a light and The smallest space that can be integrated into a hydraulic unit to offer medium storage.
Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Hauptanspruchs und der Unteransprüche gelöst.This object is achieved by the characterizing Features of the main claim and the subclaims solved.
Die Druckkraft aufnehmenden und weiter leitenden Bauteile sind im Bauraum der für die Druckaufnahme notwendigen Feder ange ordnet. Der Kolben wird durch einen im Zentrum der Verschie beachse angeordneten Führungszapfen geführt. Die den Führungs zapfen aufnehmende Führungsbuchse ist in die Schraubenfeder hineingestülpt. Der für die Führungselemente benötigte Bauraum ist somit in den in der Feder vorhandenen freien Raum verlegt und benötigt keinen zusätzlichen Raum. Um weiteres Gewicht zu sparen, ist der Kolben aus Kunststoff und der topfförmige mit integrierter Führungsbuchse einteilig ausgestattete Verschluß deckel als tiefgezogenes Blechteil ausgeführt.The pressure-absorbing and further conductive components are in the installation space of the spring necessary for pressure absorption arranges. The piston is moved through one in the center Note the guide pin arranged. The leadership Pin-receiving guide bush is in the coil spring put in. The installation space required for the guide elements is thus moved to the free space in the spring and doesn't need any additional space. To add weight save, the piston is made of plastic and the cup-shaped one Integrated guide bushing, one-piece closure Cover designed as a deep-drawn sheet metal part.
Weitere Vortei le, Merkmale und Einzelheiten der Erfindung werden anhand von Zeichnungen und der folgenden Ausführungsbeispiele erläutert.Another advantage le, features and details of the invention are based on Drawings and the following embodiments explained.
Fig. 1 Längsschnitt durch eine Ausführungsform des Druckmit telspeichers, Fig. 1 a longitudinal section through an embodiment of pressure with telspeichers,
Fig. 2 Längsschnitt durch eine Ausführungsform des Druckmit telspeichers, Fig. 2 a longitudinal section through an embodiment of pressure with telspeichers,
Fig. 3 Längsschnitt durch eine Ausführungsform des Druckmit telspeichers. Fig. 3 longitudinal section through an embodiment of the Druckmit telspeichers.
Fig. 1 zeigt einen Längsschnitt durch eine Ausführungsform des Duckmittelspeichers 1. Die dargestellte Ausführungsform be steht aus einem in eine Zylinderbohrung 2 eingeführten Kolben 5, der mittels einer Schraubenfeder 4 gegen einen Verschluß deckel 3 abgestützt wird. An dem aus Kunststoff ausgeführten Kolben ist ein Führungsdorn 11 angegossen, an dessen freiem Ende eine Nut zur Aufnahme eines Dichtelementes 8, hier eines geteilten Kunststoffringes, eingelassen ist. Am Rand der Kol bendruckfläche 9 ist ebenfalls eine Nut zur Aufnahme eines Dichtelementes 7 eingegossen. Als weitere vorteilhafte Alter native kann das Dichtelement 7 direkt am Kolben einvulkani siert werden. Fig. 1 shows a longitudinal section through an embodiment of the Duck accumulator 1. The illustrated embodiment be consists of an inserted into a cylinder bore 2 piston 5 , which is supported by a coil spring 4 against a closure cover 3 . On the piston made of plastic, a guide pin 11 is cast, at the free end of which a groove for receiving a sealing element 8 , here a split plastic ring, is embedded. At the edge of the pressure surface 9 Kol also a groove for receiving a sealing element 7 is cast. As a further advantageous alternative, the sealing element 7 can be vulcanized directly onto the piston.
Um Spritzgrade an Kontaktflächen zu vermeiden, ist die Spritz gußform für den Kolben oberhalb der Kontaktfläche 12 radial geteilt.In order to avoid degrees of injection at contact surfaces, the injection mold for the piston above the contact surface 12 is divided radially.
Der Verschlußdeckel 3 ist mit der Führungsbuchse 6 einteilig aus einer Blechronde tiefgezogen. Am oberen Rand der Zylinder bohrung ist ein Absatz 13 eingearbeitet, in die der Verschluß deckel 3 eingesetzt und dann verstemmt wird. An der der Ver schlußseite des Deckels abgewandten Öffnung der Führungsbuchse 6 ist eine Anlagefläche 14 angeformt, die den Endanschlag des Kolbens 5 bei maximalem Hub markiert.The closure cover 3 is deep-drawn in one piece with the guide bush 6 from a sheet metal blank. At the top of the cylinder bore a paragraph 13 is incorporated, in which the closure cover 3 is inserted and then caulked. At the United closing side of the lid opening of the guide bush 6 , a contact surface 14 is formed, which marks the end stop of the piston 5 at maximum stroke.
Fig. 2 zeigt ebenfalls einen Längsschnitt durch eine weitere vorteilhafte Ausführungsform des Druckmittelspeichers 1. Der Aufbau des Speichers ist bis auf das Dichtelement 8 am Füh rungsdorn 11 identisch. Das Dichtelement 8 ist in dieser Aus führung an das Ende des Führungsdorns 11 angegossen. FIG. 2 also shows a longitudinal section through a further advantageous embodiment of the pressure medium store 1 . The structure of the memory is identical except for the sealing element 8 on the guide pin 11 . The sealing element 8 is cast in this implementation from the end of the guide pin 11 .
Fig. 3 stellt eine weitere Variante der Abdichtung am Füh rungsdorn 11 dar. Fig. 3 shows another variant of the seal on the Füh approximately mandrel 11 .
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997125240 DE19725240A1 (en) | 1997-06-14 | 1997-06-14 | Pressure medium storage for hydraulic sets of vehicle electronic braking systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997125240 DE19725240A1 (en) | 1997-06-14 | 1997-06-14 | Pressure medium storage for hydraulic sets of vehicle electronic braking systems |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19725240A1 true DE19725240A1 (en) | 1998-12-17 |
Family
ID=7832513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1997125240 Withdrawn DE19725240A1 (en) | 1997-06-14 | 1997-06-14 | Pressure medium storage for hydraulic sets of vehicle electronic braking systems |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19725240A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19961682A1 (en) * | 1999-12-21 | 2001-06-28 | Continental Teves Ag & Co Ohg | Hydraulic fluid store for a hydraulic unit, made as a pre-assembled component unit |
DE10016895A1 (en) * | 2000-04-05 | 2001-10-18 | Continental Teves Ag & Co Ohg | Hydraulic block has piston movable in relation to wall of bore hydraulic block, and cover closing off accumulator is inseparably connected to hydraulic block, preferably by caulking or clinching |
EP1270357A3 (en) * | 2001-06-25 | 2004-01-02 | KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH | Spring accumulator piston |
DE102006037819A1 (en) * | 2006-08-12 | 2008-02-14 | Bayerische Motoren Werke Ag | Pressure storage e.g. for hydraulic system, has cylinder having arranged pistons which are under influence of motor storage memory element |
WO2011045369A1 (en) * | 2009-10-15 | 2011-04-21 | Schaeffler Technologies Gmbh & Co. Kg | Volume accumulator |
WO2018121913A1 (en) * | 2016-12-29 | 2018-07-05 | Robert Bosch Gmbh | Hydraulic block for a hydraulic assembly of a brake control system of a hydraulic vehicle brake system |
WO2018134244A1 (en) * | 2017-01-17 | 2018-07-26 | Liebherr-Components Kirchdorf GmbH | Cylinder-piston device having a cylinder produced from a fibre-composite material |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4202905A1 (en) * | 1992-02-01 | 1993-08-05 | Bosch Gmbh Robert | CYLINDERS, ESPECIALLY PRESSURE MEDIA FOR HYDRAULIC BRAKE SYSTEMS |
-
1997
- 1997-06-14 DE DE1997125240 patent/DE19725240A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4202905A1 (en) * | 1992-02-01 | 1993-08-05 | Bosch Gmbh Robert | CYLINDERS, ESPECIALLY PRESSURE MEDIA FOR HYDRAULIC BRAKE SYSTEMS |
Non-Patent Citations (1)
Title |
---|
JP 2-197455 A.,In: Patents Abstracts of Japan, M-1038,Oct. 23,1990,Vol.14,No.486 * |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19961682A1 (en) * | 1999-12-21 | 2001-06-28 | Continental Teves Ag & Co Ohg | Hydraulic fluid store for a hydraulic unit, made as a pre-assembled component unit |
DE10016895A1 (en) * | 2000-04-05 | 2001-10-18 | Continental Teves Ag & Co Ohg | Hydraulic block has piston movable in relation to wall of bore hydraulic block, and cover closing off accumulator is inseparably connected to hydraulic block, preferably by caulking or clinching |
DE10016895B4 (en) * | 2000-04-05 | 2008-05-08 | Continental Teves Ag & Co. Ohg | Hydraulic block with at least one pump |
EP1270357A3 (en) * | 2001-06-25 | 2004-01-02 | KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH | Spring accumulator piston |
DE102006037819A1 (en) * | 2006-08-12 | 2008-02-14 | Bayerische Motoren Werke Ag | Pressure storage e.g. for hydraulic system, has cylinder having arranged pistons which are under influence of motor storage memory element |
US8707998B2 (en) | 2009-10-15 | 2014-04-29 | Schaeffler Technologies Gmbh & Co. Kg | Volume accumulator |
WO2011045369A1 (en) * | 2009-10-15 | 2011-04-21 | Schaeffler Technologies Gmbh & Co. Kg | Volume accumulator |
WO2018121913A1 (en) * | 2016-12-29 | 2018-07-05 | Robert Bosch Gmbh | Hydraulic block for a hydraulic assembly of a brake control system of a hydraulic vehicle brake system |
CN110114252A (en) * | 2016-12-29 | 2019-08-09 | 罗伯特·博世有限公司 | The hydraulic block of the hydraulic assembly of brake regulation system for hydraulic vehicle brake apparatus |
GB2571886A (en) * | 2016-12-29 | 2019-09-11 | Bosch Gmbh Robert | Hydraulic block for a hydraulic assembly of a brake control system of a hydraulic vehicle brake system |
US10814848B2 (en) | 2016-12-29 | 2020-10-27 | Robert Bosch Gmbh | Hydraulic block for a hydraulic assembly of a brake control system of a hydraulic vehicle brake system |
CN110114252B (en) * | 2016-12-29 | 2022-04-15 | 罗伯特·博世有限公司 | Hydraulic block for a hydraulic unit of a brake actuating device of a hydraulic vehicle brake system |
WO2018134244A1 (en) * | 2017-01-17 | 2018-07-26 | Liebherr-Components Kirchdorf GmbH | Cylinder-piston device having a cylinder produced from a fibre-composite material |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: CONTINENTAL TEVES AG & CO. OHG, 60488 FRANKFURT, D |
|
8110 | Request for examination paragraph 44 | ||
8130 | Withdrawal |