DE102014220060A1 - piston accumulators - Google Patents
piston accumulators Download PDFInfo
- Publication number
- DE102014220060A1 DE102014220060A1 DE102014220060.1A DE102014220060A DE102014220060A1 DE 102014220060 A1 DE102014220060 A1 DE 102014220060A1 DE 102014220060 A DE102014220060 A DE 102014220060A DE 102014220060 A1 DE102014220060 A1 DE 102014220060A1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- housing
- annular groove
- chamber
- exposed
- 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.)
- Pending
Links
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000005242 forging Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- B60T8/36—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
- F15B2201/30—Accumulator separating means
- F15B2201/31—Accumulator separating means having rigid separating means, e.g. pistons
- F15B2201/312—Sealings therefor, e.g. piston rings
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Die Erfindung betrifft einen Kolbenspeicher mit einem einen Druckmittelanschluss aufweisenden Gehäuse (2), einem im Gehäuse (2) gleitend angeordneten Kolben (1), mit wenigstens einer zwischen dem Kolben (1) und dem Gehäuse (2) angeordneten Ringdichtung (6) zur leckagefreien Trennung von beiderseits des Kolbens (1) angeordneten Kammern (8, 9), wovon die erste Kammer (8) dem Atmosphärendruck und die zweite Kammer (9) einem Hydraulikdruck ausgesetzt ist, sowie mit einer Ringnut (6) am Kolbenmantel zur Aufnahme der Ringdichtung (7). Zur Führung des Kolbens (1) im Gehäuse (2) weist der Kolbenmantel an seinen beiden Enden einen ersten sowie einen zweiten Bund (3, 4) auf, wobei in einem Axialabstand (X1, X2) zwischen dem ersten und zweiten Bund (3, 4) zumindest ein Kolbenabsatz (5) vorgesehen ist, an den sich die Ringnut (6) zur Aufnahme der Ringdichtung (7) anschließt.The invention relates to a piston accumulator having a housing (2) having a pressure medium connection, a piston (1) arranged slidably in the housing (2), with at least one annular seal (6) arranged between the piston (1) and the housing (2) for leakage-free Separation of both sides of the piston (1) arranged chambers (8, 9), of which the first chamber (8) to the atmospheric pressure and the second chamber (9) is exposed to a hydraulic pressure, and with an annular groove (6) on the piston skirt for receiving the annular seal (7). To guide the piston (1) in the housing (2), the piston skirt has at both ends a first and a second collar (3, 4), wherein at an axial distance (X1, X2) between the first and second collar (3, 4) at least one piston shoulder (5) is provided, to which the annular groove (6) for receiving the annular seal (7) is connected.
Description
Die Erfindung betrifft einen Kolbenspeicher, insbesondere für eine schlupfgeregelte Fahrzeugbremsanlage nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a piston accumulator, in particular for a slip-controlled vehicle brake system according to the preamble of
In der
Der vorgeschlagene Kolbenspeicher hat allerdings den Nachteil, dass dieser über die gesamte Länge des Kolbenmantels die Innenwand des Gehäuses kontaktiert, womit hohe Anforderungen an die Maßhaltigkeit des Kolbens gestellt werden, die nur durch einen aufwendigen Prüfprozess während der Herstellung des Kolbens eingehalten werden können. Hierfür muss aufgrund der erforderlichen hohen Anzahl von Meßebenen und Meßpunkten entlang des Kolbenmantels ein hoher Zeitaufwand einkalkuliert werden, wodurch ein entsprechend hoher Herstell- und damit Kostenaufwand entsteht. Schließlich ist auch der vollflächige Gehäusekontakt des Kolbenmantels hinsichtlich der Gleit- und Reibungsverhältnisse als nachteilig einzustufen.However, the proposed piston accumulator has the disadvantage that this contacted over the entire length of the piston skirt, the inner wall of the housing, making high demands on the dimensional stability of the piston, which can be met only by a complex test process during manufacture of the piston. For this purpose, a high amount of time must be taken into account due to the required high number of measurement levels and measuring points along the piston skirt, whereby a correspondingly high manufacturing and thus cost arises. Finally, the full-surface housing contact of the piston skirt with respect to the sliding and friction conditions is classified as disadvantageous.
Daher ist es die Aufgabe der vorliegenden Erfindung, einen einfachen, funktionssicheren Kolbenspeicher zu schaffen, der die vorgenannten Nachteile nicht aufweist, sodass mit möglichst geringem Fertigungsaufwand der Kolben reibungsarm im Gehäuse geführt werden kann.Therefore, it is the object of the present invention to provide a simple, reliable piston accumulator, which does not have the aforementioned disadvantages, so that the pistons can be guided with low friction in the housing with the lowest possible production cost.
Diese Aufgabe wird erfindungsgemäß für einen Kolbenspeicher der angegebenen Art durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. This object is achieved for a piston accumulator of the type indicated by the characterizing features of
Weitere Merkmale und Vorteile der Erfindung werden im Folgenden anhand der Beschreibung zweier Ausführungsbeispiele erläutert. Further features and advantages of the invention will be explained below with reference to the description of two embodiments.
Es zeigen:Show it:
Beide Figuren zeigen somit in einer erheblich vergrößerten Darstellung im Längsschnitt jeweils die Symmetriehälfte eines Kolbenspeichers, der bevorzugt in einer schlupfgeregelten Kraftfahrzeugbremsanlage zum Einsatz gelangt. Der Kolbenspeicher weist jeweils ein mit einem Druckmittelanschluss
Um die erforderliche Anzahl von Meßebenen und Meßpunkten auf ein Minimum zu reduzieren, sieht die Erfindung vor, dass zur Führung und Abstützung des Kolbens
In der
In
Wie aus den
Gemäß der
In einer weiteren Ausgestaltung des Ringraums
Je nach Werkstoffauswahl, d.h. Metall oder Kunststoff, lässt sich der Kolben
Zusammenfassend lässt sich somit festhalten, dass bei gleichzeitiger Material-, Gewichts- und Reibungsreduzierung durch die vorgeschlagene Erfindung ein nennenswerter Beitrag zur Verringerung des Prüfaufwandes während der Kolbenfertigung auf wenige Meßstellen im Bereich des hinteren und vorderen Bunds
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Kolben piston
- 22
- Gehäuse casing
- 33
- Bund Federation
- 44
- Bund Federation
- 55
- Kolbenabsatz piston paragraph
- 66
- Ringnut ring groove
- 77
- Ringdichtung ring seal
- 88th
- Kammer chamber
- 99
- Kammer chamber
- 1010
- Ringraum annulus
- 1111
- Druckmittelanschluss Pressure medium connection
- 1212
- Druckfeder compression spring
- 1313
- Deckel cover
- 1414
- Aufnahmebohrung location hole
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102005034984 A1 [0002] DE 102005034984 A1 [0002]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014220060.1A DE102014220060A1 (en) | 2014-10-02 | 2014-10-02 | piston accumulators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014220060.1A DE102014220060A1 (en) | 2014-10-02 | 2014-10-02 | piston accumulators |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102014220060A1 true DE102014220060A1 (en) | 2016-04-07 |
Family
ID=55531095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102014220060.1A Pending DE102014220060A1 (en) | 2014-10-02 | 2014-10-02 | piston accumulators |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102014220060A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107345516A (en) * | 2016-05-05 | 2017-11-14 | 博世汽车柴油***有限公司 | Plunger seal ring and corresponding high pressure fuel pump for high pressure fuel pump |
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 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4104504A1 (en) * | 1991-02-14 | 1992-08-20 | Teves Gmbh Alfred | Accumulator for blockage-protected hydraulic braking circuit - has two seal groups on piston, one comprising inner elastic and outer PTFE seals, and second comprising soft elastic material |
DE19814835A1 (en) * | 1998-04-02 | 1999-10-07 | Itt Mfg Enterprises Inc | Electronically controlled brake system with memory |
JP2002200972A (en) * | 2000-12-28 | 2002-07-16 | Nissin Kogyo Co Ltd | Reservoir |
DE102005034984A1 (en) | 2005-04-13 | 2006-10-19 | Continental Teves Ag & Co. Ohg | Pump-less braking system in particular for motorcycle, comprising in- and outlet valve as well as low pressure accumulator in parallel position |
DE102009028912A1 (en) * | 2008-08-28 | 2010-03-04 | Advics Co., Ltd., Kariya | pressure regulating |
DE102012021841A1 (en) * | 2012-10-26 | 2014-04-30 | Hydac Technology Gmbh | Separating device for fluid media |
-
2014
- 2014-10-02 DE DE102014220060.1A patent/DE102014220060A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4104504A1 (en) * | 1991-02-14 | 1992-08-20 | Teves Gmbh Alfred | Accumulator for blockage-protected hydraulic braking circuit - has two seal groups on piston, one comprising inner elastic and outer PTFE seals, and second comprising soft elastic material |
DE19814835A1 (en) * | 1998-04-02 | 1999-10-07 | Itt Mfg Enterprises Inc | Electronically controlled brake system with memory |
JP2002200972A (en) * | 2000-12-28 | 2002-07-16 | Nissin Kogyo Co Ltd | Reservoir |
DE102005034984A1 (en) | 2005-04-13 | 2006-10-19 | Continental Teves Ag & Co. Ohg | Pump-less braking system in particular for motorcycle, comprising in- and outlet valve as well as low pressure accumulator in parallel position |
DE102009028912A1 (en) * | 2008-08-28 | 2010-03-04 | Advics Co., Ltd., Kariya | pressure regulating |
DE102012021841A1 (en) * | 2012-10-26 | 2014-04-30 | Hydac Technology Gmbh | Separating device for fluid media |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107345516A (en) * | 2016-05-05 | 2017-11-14 | 博世汽车柴油***有限公司 | Plunger seal ring and corresponding high pressure fuel pump for high pressure fuel pump |
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 |
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 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R012 | Request for examination validly filed | ||
R081 | Change of applicant/patentee |
Owner name: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: CONTINENTAL TEVES AG & CO. OHG, 60488 FRANKFURT, DE |
|
R081 | Change of applicant/patentee |
Owner name: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH, DE Free format text: FORMER OWNER: CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBH, 30165 HANNOVER, DE |