DE4303205A1 - Pump, made of material produced in a continuous process, with a valve block, especially for a controlled braking system - Google Patents

Pump, made of material produced in a continuous process, with a valve block, especially for a controlled braking system

Info

Publication number
DE4303205A1
DE4303205A1 DE19934303205 DE4303205A DE4303205A1 DE 4303205 A1 DE4303205 A1 DE 4303205A1 DE 19934303205 DE19934303205 DE 19934303205 DE 4303205 A DE4303205 A DE 4303205A DE 4303205 A1 DE4303205 A1 DE 4303205A1
Authority
DE
Germany
Prior art keywords
pump
valve block
pump casing
housing
controlled braking
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Withdrawn
Application number
DE19934303205
Other languages
German (de)
Inventor
Erhard Dipl Ing Beck
Albrecht Dipl Ing Otto
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.)
Continental Teves AG and Co OHG
Original Assignee
ITT Automotive Europe GmbH
Alfred Teves 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.)
Filing date
Publication date
Application filed by ITT Automotive Europe GmbH, Alfred Teves GmbH filed Critical ITT Automotive Europe GmbH
Priority to DE19934303205 priority Critical patent/DE4303205A1/en
Publication of DE4303205A1 publication Critical patent/DE4303205A1/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • 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
    • 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
    • B60T8/4031—Pump units characterised by their construction or mounting

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Electromagnetism (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The invention relates to a unit comprising pump and valve block for controlled braking systems (ABS, ASR). In order to preclude any secondary machining of that face (3) of the pump casing (2) which adjoins the valve block (2), the pump casing is manufactured from continuously cast material. The increased mechanical strength of said material makes it possible for the tap holes (threaded holes) to be arranged in the pump casing (2), thus achieving a saving in material and increased mechanical strength in the pump casing, since through- holes for the screws in the pump casing are avoided. <IMAGE>

Description

Für geregelte Bremssysteme (z. B. ABS, ASR) wird regel­ mäßig eine Pumpe benötigt, die während des Regelvor­ ganges den Betätigungsdruck der zu regelnden Bremse aufbaut, sowie ein Ventilblock, welcher die an der Bremse herrschenden Druckzustände in Abhängigkeit von den Istwerten steuert. Wegen der Vielzahl, der über das Ventil mit der Pumpe verbundenen Leitungen werden Pumpe und Ventilblock üblicherweise einander benach­ bart zusammengebaut. Ein Beispiel hierfür zeigt die DE-OS 41 07 625.For regulated brake systems (e.g. ABS, ASR) is the rule moderately needed a pump, which during the control period ganges the operating pressure of the brake to be controlled builds up, as well as a valve block, which on the Brake pressure conditions depending on controls the actual values. Because of the multitude that over the valve will be connected to the pump lines Pump and valve block usually next to each other beard assembled. An example of this is shown in the DE-OS 41 07 625.

Dabei war es bisher üblich, die Pumpe aus einem Guß­ teil zu fertigen. Wegen der, die Schnittfläche von Pumpe und Ventilblock durchdringenden Leitungen mußte, um das Dichtverhalten zu verbessern die Pumpe zumindest an der, dem Ventilblock zugewandten Seite gut bearbeitet werden. Ein derartiges Verfahren ist aufwendig und teuer.So far, it has been common to have the pump from a single source to manufacture part. Because of that, the intersection of Lines penetrating the pump and valve block, the pump to improve the sealing behavior at least on the side facing the valve block be processed well. One such method is complex and expensive.

Aufgabe der Erfindung ist es den Aufbau des Gehäuses der Pumpe zu vereinfachen und den Zusammenbau mit dem Ventilblock zu erleichtern. The object of the invention is the construction of the housing to simplify the pump and assemble with the To facilitate valve block.  

Die Erfindung geht daher aus von einer Einheit aus Pumpe und Ventilblock, wie sie in dem Oberbegriff Anspruch 1 aufgeführt ist und löst die Aufgabe, durch die sich aus dem kennzeichenenden Teil des Anspruchs 1 ergebende Merkmalskombination.The invention is therefore based on one unit Pump and valve block, as in the preamble Claim 1 is listed and solves the task by resulting from the characterizing part of claim 1 resulting combination of features.

Die Erfindung besteht im Prinzip also darin, für das Pumpengehäuse Strangmaterial zu verwenden, dessen Außenflächen sehr viel glatter als bei Gußteilen ist, so daß diese für den Zusammenbau mit dem Ventilblock nicht noch zusätzlich bearbeitet werden müssen. Im übrigen hat das Strangmaterial eine erheblich größere Festigkeit als das Material des bekannten Gußteils. Hierdurch läßt sich wegen der größeren Belastungsfähigkeit des Materials die Abmessung der Pumpe verkleinern.In principle, the invention therefore consists in the Pump housing to use extruded material whose Outer surface is much smoother than castings, so that this can be assembled with the valve block do not have to be edited additionally. in the the other strand material has a significantly larger Strength as the material of the known casting. This allows because of the larger Resilience of the material the dimension of the Reduce the pump.

Um gegebenenfalls Pumpe oder Ventilblock austauschen zu können, empfiehlt sich in Weiterbildung der Erfindung die Merkmalskombination nach Anspruch 2. Dabei sorgt die lösbare Schraubverbindung für eine hinreichende Belastungsfähigkeit, der die Schnittflächen der beiden Körper durchdringenden Leitungen in Folge des, in diesen Leitungen herrschenden Drucks.To replace the pump or valve block if necessary To be able to, is recommended in further training of Invention the combination of features according to claim 2. The detachable screw connection ensures one sufficient resilience, which the Intersecting areas of the two bodies Lines as a result of, in these lines prevailing pressure.

Während es nun bei den bekannten Konstruktionen so war, daß die Gewindelöcher in den Ventilblock aufgrund seiner größeren Festigkeit gebohrt wurden, läßt die Wahl des Strangmaterials für das Pumpengehäuse in vorteilhafter Weiterbildung der Erfindung die Merkmalskombination nach Anspruch 3 zu. Hierdurch wird erreicht, daß die Befestigungsschrauben sich nicht über die relativ große gesamte Höhe des Pumpengehäuses erstrecken müssen, sondern nur das vergleichsweise flache Ventilgehäuse durchdringen und dann an dem dem Ventilblock zugewandten Ende des Pumpengehäuses verschraubt sind. Auf diese Weise wird eine zu­ sätzliche Möglichkeit erreicht, die Abmessungen des Pumpengehäuses zu verkleinern, wobei vorteilhaft noch hinzukommt, daß die unter Druck stehenden Arbeitszy­ linder der Pumpen durch in der Nähe dieser Arbeits­ zylinder vorbeigeführte Durchgangslöcher der Schrauben nicht mehr geschwächt werden.While it is now with the known constructions was due to the threaded holes in the valve block its greater strength were drilled, the Choice of strand material for the pump housing in  advantageous development of the invention Combination of features according to claim 3. This will achieved that the mounting screws are not over the relatively large overall height of the pump housing have to extend, but only comparatively penetrate flat valve housing and then on the Valve block facing end of the pump housing are screwed. This way one becomes too additional possibility achieved the dimensions of the Reduce the size of the pump housing, which is advantageous in addition, that the pressurized Arbeitszy alleviate the pumps by working near this cylinder through holes of the screws can no longer be weakened.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung erläutert.An embodiment of the invention is as follows explained using the drawing.

Die Zeichnung zeigt in symbolischer Darstellung einen Ventilblock 1, der mit dem Gehäuse 2 einer Pumpe ver­ bunden ist. Dabei ist das Gehäuse 2 aus einem festen Strangmaterial hergestellt. Der Strang wurde in der Richtung des Pfeiles P gefertigt, so daß die einzelnen Stücke des Pumpengehäuses 2 durch Abschneiden quer zur Richtung des Pfeiles P gewonnen werden. Während nun die Schnittflächen S vergleichweise uneben sind, sind die restlichen, in Richtung des Pfeiles P sich erstreckenden Flächen, wie beispielsweise die Unter­ fläche 3 und die Oberfläche 4 durch den Ziehvorgang von glatter Beschaffenheit. Auf diese Weise kann die Unterfläche 3 ohne gesonderte Nachbearbeitung mit der zugeordneten Fläche des Ventilblocks 1 verbunden werden. In die Unterfläche 3 des Gehäuses 2 sind Gewindebohrungen 5 bis 8 eingearbeitet, in welche Schrauben 9 bis 11 eingreifen, die durch entsprechende Durchgangslöcher in den Ventilblock 1 ragen. Hierdurch wird erreicht, daß in dem Pumpengehäuse erheblich größere Materialfestigkeit herrscht, als wenn, in bisher bekannter Weise, die Schrauben durch Durch­ gangslöcher in dem Pumpengehäuse 2 mit dem Ventilblock 1 verschraubt werden.The drawing shows a symbolic representation of a valve block 1 , which is connected to the housing 2 of a pump. The housing 2 is made of a solid strand material. The strand was made in the direction of arrow P, so that the individual pieces of the pump housing 2 are obtained by cutting transversely to the direction of arrow P. While the cut surfaces S are comparatively uneven, the remaining surfaces extending in the direction of the arrow P, such as the lower surface 3 and the surface 4, are smooth in nature due to the drawing process. In this way, the lower surface 3 can be connected to the assigned surface of the valve block 1 without any special finishing. In the lower surface 3 of the housing 2 , threaded bores 5 to 8 are machined, into which screws 9 to 11 engage, which protrude through corresponding through holes in the valve block 1 . This ensures that there is considerably greater material strength in the pump housing than if, in a previously known manner, the screws are screwed through through holes in the pump housing 2 with the valve block 1 .

In der Zeichnung ist durch entsprechende Kreise die Lage der, in das Gehäuse eingefügten Niederdruck­ speicher 17, 18 gezeigt, wie sie z. B. im Zusammenhang mit der DE-OS 41 07 625 beschrieben sind. Im Gegensatz zu dieser Pumpe sind bei dem vorliegenden Pumpenge­ häuse 2 die Druckdämpfungskammern 19, 20 oberhalb der Niederdruckspeicher angeordnet und nicht unterhalb, wie in der DE-OS 41 07 625. Oberhalb der Druck­ dämpfungskammern 19, 20 können noch ASR-Ventile 21, 22 angeordnet sein. Durch entsprechende Kreise sind die Bohrungen 23, 24 für die Zylinder der Radialkolbenpumpe angedeutet. Dabei kann es sich um eine besonders kurz­ bauende Version handeln, wie sie beispielsweise in der Anmeldung P 7370 der Anmelderin vorgeschlagen wird, wo anstatt von Kugelventilen Manschetten mit Backringen eingesetzt werden.In the drawing, the location of the inserted into the housing low pressure memory 17 , 18 is shown by appropriate circles, as z. B. are described in connection with DE-OS 41 07 625. In contrast to this pump, in the present pump housing 2, the pressure damping chambers 19 , 20 are arranged above the low-pressure accumulator and not below, as in DE-OS 41 07 625. Above the pressure damping chambers 19 , 20 , ASR valves 21 , 22 can still be used be arranged. The bores 23 , 24 for the cylinders of the radial piston pump are indicated by appropriate circles. This can be a particularly short version, as proposed, for example, in application P 7370 by the applicant, where sleeves with back rings are used instead of ball valves.

Claims (3)

1. Pumpe mit Ventilblock insbesondere für ein geregeltes Bremssystem bei dem die Pumpe mit dem Ventilblock zu einer lösbaren Einheit verbunden ist, dadurch gekennzeichnet, daß das Gehäuse (2) der Pumpe aus gezogenem Material (Strangguß) gebildet ist, wobei eine durch den Ziehvorgang geformte Seitenfläche (3) des Pumpen­ gehäuses (2) an einer Seitenfläche des Ventilblocks (1) anliegt.1. Pump with valve block, in particular for a controlled brake system in which the pump is connected to the valve block to form a detachable unit, characterized in that the housing ( 2 ) of the pump is made of drawn material (continuous casting), one formed by the drawing process Side surface ( 3 ) of the pump housing ( 2 ) abuts a side surface of the valve block ( 1 ). 2. Pumpe mit Ventilblock nach Anspruch 1 dadurch gekennzeichnet, daß das Pumpengehäuse (2) mit dem Ventilblock (1) durch eine Schraub­ verbindung (5 bis 12) verbunden ist.2. Pump with valve block according to claim 1, characterized in that the pump housing ( 2 ) with the valve block ( 1 ) by a screw connection ( 5 to 12 ) is connected. 3. Pumpe mit Ventilblock nach Anspruch 2 dadurch gekennzeichnet, daß die Schrauben (9 bis 12) durch Durchgangslöcher in dem Ventilblock (1) ragen und mit in das Pumpengehäuse (2) eingebrachten Gewinden (5 bis 8) verschraubt sind.3. Pump with valve block according to claim 2, characterized in that the screws ( 9 to 12 ) protrude through through holes in the valve block ( 1 ) and screwed into the pump housing ( 2 ) threads ( 5 to 8 ).
DE19934303205 1993-02-04 1993-02-04 Pump, made of material produced in a continuous process, with a valve block, especially for a controlled braking system Withdrawn DE4303205A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934303205 DE4303205A1 (en) 1993-02-04 1993-02-04 Pump, made of material produced in a continuous process, with a valve block, especially for a controlled braking system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934303205 DE4303205A1 (en) 1993-02-04 1993-02-04 Pump, made of material produced in a continuous process, with a valve block, especially for a controlled braking system

Publications (1)

Publication Number Publication Date
DE4303205A1 true DE4303205A1 (en) 1994-08-11

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ID=6479642

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934303205 Withdrawn DE4303205A1 (en) 1993-02-04 1993-02-04 Pump, made of material produced in a continuous process, with a valve block, especially for a controlled braking system

Country Status (1)

Country Link
DE (1) DE4303205A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999039100A1 (en) * 1998-01-30 1999-08-05 Continental Teves Ag & Co. Ohg Axial piston pump
WO2021052622A1 (en) * 2019-09-18 2021-03-25 Caterpillar Sarl Hydraulic valve module and method for supplying hydraulic pressure to circuits of a vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2249480A (en) * 1939-07-14 1941-07-15 Gen Electric Compressor valve
DE2403588A1 (en) * 1974-01-25 1975-07-31 American Aero Ind High press. liquid pump - has interchangeable valve cartridge fitted in cavity of intake block
US4878815A (en) * 1988-05-18 1989-11-07 Stachowiak J Edward High pressure reciprocating pump apparatus
DE3444205C2 (en) * 1984-03-29 1990-07-12 Aisin Seiki K.K., Kariya, Aichi, Jp
DE4107625A1 (en) * 1991-03-09 1992-09-10 Teves Gmbh Alfred HYDRAULIC UNIT

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2249480A (en) * 1939-07-14 1941-07-15 Gen Electric Compressor valve
DE2403588A1 (en) * 1974-01-25 1975-07-31 American Aero Ind High press. liquid pump - has interchangeable valve cartridge fitted in cavity of intake block
DE3444205C2 (en) * 1984-03-29 1990-07-12 Aisin Seiki K.K., Kariya, Aichi, Jp
US4878815A (en) * 1988-05-18 1989-11-07 Stachowiak J Edward High pressure reciprocating pump apparatus
DE4107625A1 (en) * 1991-03-09 1992-09-10 Teves Gmbh Alfred HYDRAULIC UNIT

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999039100A1 (en) * 1998-01-30 1999-08-05 Continental Teves Ag & Co. Ohg Axial piston pump
WO2021052622A1 (en) * 2019-09-18 2021-03-25 Caterpillar Sarl Hydraulic valve module and method for supplying hydraulic pressure to circuits of a vehicle
US11117562B2 (en) 2019-09-18 2021-09-14 Caterpillar Sarl Hydraulic valve module and method for supplying hydraulic pressure to circuits of a vehicle
CN114401871A (en) * 2019-09-18 2022-04-26 卡特彼勒Sarl Hydraulic valve module and method for supplying hydraulic pressure to a circuit of a vehicle
CN114401871B (en) * 2019-09-18 2024-01-05 卡特彼勒Sarl Hydraulic valve module and method for supplying hydraulic pressure to a circuit of a vehicle

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: CONTINENTAL TEVES AG & CO. OHG, 60488 FRANKFURT, D

8130 Withdrawal