EP0932536A1 - Appareil hydraulique - Google Patents

Appareil hydraulique

Info

Publication number
EP0932536A1
EP0932536A1 EP97945851A EP97945851A EP0932536A1 EP 0932536 A1 EP0932536 A1 EP 0932536A1 EP 97945851 A EP97945851 A EP 97945851A EP 97945851 A EP97945851 A EP 97945851A EP 0932536 A1 EP0932536 A1 EP 0932536A1
Authority
EP
European Patent Office
Prior art keywords
cavity
hydraulic unit
pressure
ventilation
unit according
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Withdrawn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
EP97945851A
Other languages
German (de)
English (en)
Inventor
Helmut Weisbrod
Rüdiger HORNE
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.)
ITT Manufacturing Enterprises LLC
Original Assignee
ITT Manufacturing Enterprises LLC
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 Manufacturing Enterprises LLC filed Critical ITT Manufacturing Enterprises LLC
Publication of EP0932536A1 publication Critical patent/EP0932536A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • 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
    • B60T8/4018—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
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • 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
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the invention relates to a hydraulic unit, in particular a pump unit for slip-controlled motor vehicle brake systems according to the preamble of patent claim 1.
  • Salt or water penetrating into the valve, pump, motor and pressure accumulator space leads to the accumulation and possibly flooding of the cavities.
  • a hydraulic unit is known from DE 44 38 163 AI, which has a central location Ventilation point has, however, with the disadvantage that the individual pressure compensation channels running in the housing are connected with a large manufacturing effort.
  • a breathable membrane is suitable for representing the ventilation point.
  • a hose can also be provided for the safe ventilation of the hydraulic unit, which connects to the ventilation point and can be laid in a moisture-protected outdoor area.
  • the features of claim 7 provide that the pressure compensation channel attached in the motor shaft extends on the side of the housing facing away from the pressure generator element between a bearing guiding the motor shaft and a recess in the housing of the drive element.
  • the housing of the drive element takes on the ventilation point.
  • a practical and functional design for the pressure compensation duct in the motor shaft is obtained if it is designed as a stepped duct, the smaller clear width of which preferably faces the cavity of the pressure generating element.
  • the only figure 1 shows a hydraulic unit with a receiving body 10 shown in section for mounting the drive element 2, the valve elements 3 and the storage element 1.
  • the drive element 2 consists of a DC motor, the rotor of which at one shaft end, for example in a pot-shaped housing 11 by means of a Bearing 12 leads and the opposite, further bearing is held in a stepped bore of the receiving body 10. This further bearing guides the shaft of the drive element 2 in the vicinity of the shaft eccentric pin, which has a needle bearing for actuating a piston-shaped pressure generator element 4.
  • Another, smaller-diameter bore section joins the bearing point of the drive element 2 in the receiving body 10. This can extend as a pressure compensation channel 6 "to the surface of the receiving body 10.
  • the cavity 3 ' is divided for receiving electrical or electronic components.
  • the storage element 1 is movably oriented transversely to the drive element 2 in the receptacle body 10.
  • the cavity 1 'located between the piston-shaped storage element 10 and the associated sealing cover is either connected to the cavity 2' of the drive element 2 or to the cavity 4 'by a pressure compensation channel 6' Pressure generating elements 4 in connection.
  • the brush plate of the drive element 2 pushed over the motor shaft 9 has corresponding openings which produce an open connection between the cavity 1 'and the cavity 2'.
  • this cavity 4 ' is above a pressure relief arranged in the motor shaft 9.
  • the wall section 8 is preferably a Goretex membrane, which is attached to the collar of the end shield.
  • the collar has an opening which, together with a radial channel, forms the ventilation point 5 emerging from the housing 11 ring seals.
  • On both sides of the radial channel 11 ring seals are arranged between the collar on the end shield and the housing, so that all cavities are ventilated exclusively via the small-sized ventilation point 5 acting as a ventilation hole in the housing 11.
  • the ventilation point 5 is designed, for example, as a breathable, but liquid- and solid-particle-impermeable wall section 8 in the form of a membrane, so that the penetration of dirt and liquid into the moisture and dirt-sensitive area of the receiving body 10 is prevented under all operating conditions.
  • the pressure compensation channel 6, which is arranged as a central bore in the motor shaft 9, is stepped in the area of the eccentric pin and expediently has a smaller clear width compared to the reinforced area of the motor shaft 9. This smallest dimension of the pressure compensation channel 6 takes into account both the pressure compensation currents to be expected and the necessary strength properties of the eccentric pin and the motor shaft.
  • the motor shaft 9 be supported at both end regions. Accordingly, a recess 13 is to be provided between the bearing 12 and the housing 11 in order to continue the pressure compensation channel 6 in the direction of the ventilation point 5. This can be done, for example, when the pot-shaped housing 11 is produced by means of an embossing process. This measure can be omitted if, in contrast to FIG. 1, a two-point bearing and thus the arrangement of the bearing 12 on the motor shaft 9 are dispensed with, with the result that the mounting of the motor shaft 9 is limited exclusively to the area of the receiving body 10. The invention is thus not limited to the bearing arrangement shown in the illustration with the associated holding disk provided with openings at the shaft end.
  • the advantages of the invention result in a simplification of the individual sealing or ventilation measures used hitherto, as a result of which only a single one is required instead of several ventilation points.
  • Complex sealing and manufacturing measures, in particular with regard to the arrangement of the ventilation channels within the cavities, can be omitted.
  • the result of the invention is thus characterized by simplified production, component reduction, easier testability, increased functional reliability and the immersion capability of the hydraulic unit, the best possible ventilation of the cavities being guaranteed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Motors (AREA)

Abstract

L'invention concerne un appareil hydraulique comportant au moins un élément fonctionnel (1, 2, 3, 4) hydraulique mécanique monté sur un corps récepteur et/ou actionnable électriquement, tel qu'élément d'accumulation, de soupape, de production de pression et d'entraînement. Chaque espace creux (1', 2', 3', 4') associé à un élément fonctionnel (1, 2, 3, 4) est raccordé à un système de ventilation qui assure le renouvellement et l'évacuation de l'air de chaque espace creux (1' à 4') pour compenser la pression avec l'atmosphère par l'intermédiaire d'un point de ventilation (5) communiquant avec un canal de compensation de la pression (6, 6', 6') du système de ventilation. Le canal de compensation de la pression (6) qui relie l'espace creux (2') de l'élément d'entraînement (2) avec l'espace creux (4') de l'élément de production de pression (4), est monté dans un arbre moteur (9) de l'élément d'entraînement (2).
EP97945851A 1996-10-21 1997-10-16 Appareil hydraulique Withdrawn EP0932536A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19643289A DE19643289A1 (de) 1996-10-21 1996-10-21 Hydraulikaggregat
DE19643289 1996-10-21
PCT/EP1997/005721 WO1998017514A1 (fr) 1996-10-21 1997-10-16 Appareil hydraulique

Publications (1)

Publication Number Publication Date
EP0932536A1 true EP0932536A1 (fr) 1999-08-04

Family

ID=7809268

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97945851A Withdrawn EP0932536A1 (fr) 1996-10-21 1997-10-16 Appareil hydraulique

Country Status (3)

Country Link
EP (1) EP0932536A1 (fr)
DE (1) DE19643289A1 (fr)
WO (1) WO1998017514A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001040042A1 (fr) * 1999-12-01 2001-06-07 Continental Teves Ag & Co. Ohg Unite hydraulique
EP1307370B1 (fr) 2000-07-29 2004-06-16 Robert Bosch Gmbh Ensemble pompe pour un systeme de freinage hydraulique de vehicule
DE10131805A1 (de) 2000-07-29 2002-02-07 Bosch Gmbh Robert Pumpenaggregat für eine hydraulische Fahrzeugbremsanlage
DE10107814A1 (de) * 2000-11-21 2002-05-23 Continental Teves Ag & Co Ohg Drucksensorbaugruppe
WO2003066403A1 (fr) * 2002-02-08 2003-08-14 Continental Teves Ag & Co. Ohg Groupe hydraulique pour systeme de freinage antipatinage
DE20310257U1 (de) * 2003-07-03 2003-11-06 TRW Fahrwerksysteme GmbH & Co KG, 40547 Düsseldorf Hydraulikaggregat
DE102005034985A1 (de) 2005-02-02 2006-08-03 Continental Teves Ag & Co. Ohg Verschlussvorrichtung
JP5282126B2 (ja) 2011-07-11 2013-09-04 日信工業株式会社 モータポンプ装置
DE102012222575A1 (de) 2012-12-07 2014-06-12 Robert Bosch Gmbh Hydropumpenaggregat für eine hydraulische Fahrzeugbremsanlage
EP3754816B1 (fr) * 2018-02-15 2024-03-20 Panasonic Intellectual Property Management Co., Ltd. Moteur et dispositif électrique le comportant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0382356A (ja) * 1989-08-22 1991-04-08 Fanuc Ltd モータの冷却構造
DE3935756A1 (de) * 1989-10-27 1991-05-02 Vdo Schindling Hydraulische anlage in einem kraftfahrzeug
DE4234013A1 (de) 1992-10-09 1994-04-14 Teves Gmbh Alfred Hydraulikaggregat für schlupfgeregelte Bremsanlagen
DE19500350A1 (de) * 1994-10-26 1996-07-11 Teves Gmbh Alfred Hydraulikaggregat
DE4438163A1 (de) * 1994-10-26 1996-05-02 Teves Gmbh Alfred Hydraulikaggregat
DE4444643A1 (de) * 1994-12-15 1996-06-20 Teves Gmbh Alfred Elektromotor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9817514A1 *

Also Published As

Publication number Publication date
WO1998017514A1 (fr) 1998-04-30
DE19643289A1 (de) 1998-04-23

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