EP1788205A2 - Ansaugvorrichtung mit beweglichen Ansaugfilter für Fahrzeug Brennkraftmaschine Ölpumpe - Google Patents

Ansaugvorrichtung mit beweglichen Ansaugfilter für Fahrzeug Brennkraftmaschine Ölpumpe Download PDF

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Publication number
EP1788205A2
EP1788205A2 EP06301095A EP06301095A EP1788205A2 EP 1788205 A2 EP1788205 A2 EP 1788205A2 EP 06301095 A EP06301095 A EP 06301095A EP 06301095 A EP06301095 A EP 06301095A EP 1788205 A2 EP1788205 A2 EP 1788205A2
Authority
EP
European Patent Office
Prior art keywords
suction
strainer
hydraulic fluid
duct
mobile
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Withdrawn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
EP06301095A
Other languages
English (en)
French (fr)
Other versions
EP1788205A3 (de
Inventor
Laurent Germes
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Publication of EP1788205A2 publication Critical patent/EP1788205A2/de
Publication of EP1788205A3 publication Critical patent/EP1788205A3/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/06—Means for keeping lubricant level constant or for accommodating movement or position of machines or engines
    • F01M11/062—Accommodating movement or position of machines or engines, e.g. dry sumps
    • F01M11/064—Movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/0004—Oilsumps

Definitions

  • the invention relates to a mobile suction suction pump suction device for hydraulic pump intended to be immersed in a hydraulic fluid tarpaulin of a motor vehicle engine.
  • JP 11247642 an oil tank inside which is immersed a suction strainer suction device for an oil pump, the suction strainer being in fluid communication with the oil pump through a flexible duct , able to deform freely vertically and laterally. Thanks to this measurement, the suction strainer is advantageously directed towards the oil to be sucked when it is pressed against a side wall of the tank under the effect of gravity when the engine is tilted or under the effect of the centrifugal force.
  • the document JP 10311210 provides an improvement to this device, the cover being made in two stages of different sections, the lower stage, filled with oil, being of reduced section.
  • the movement of the oil in the tarpaulin is advantageously limited.
  • this two-stage cover is more bulky, so that this solution is not very advantageous.
  • the document JP 2086908 for its part describes a suction strainer suction device for an oil pump, arranged in an oil tank, the suction strainer being mounted on a "Z" -shaped duct mounted to rotate relative to the casing engine. Moreover, the strainer is connected to a mass. Thus, when the engine is inclined and the oil is thus pressed against a side wall of the tank, the mass, under the effect of gravity, causes a displacement of the suction strainer to the area of the tank where the oil accumulates.
  • the object of the invention is therefore to provide a mobile suction suction pump suction device for hydraulic pump capable of being immersed in a motor vehicle hydraulic fluid cover having a response time to changes in conditions, in particular at the inclination of the engine, shorter so as to allow continuous suction of the hydraulic fluid of the hydraulic fluid tank, without "holes" suction.
  • a movable suction suction device for a hydraulic pump intended to be immersed in a motor vehicle hydraulic fluid cover, comprising a suction strainer and a suction duct for placing in fluid communication said hydraulic pump disposed at a first end of said suction duct and said suction strainer disposed at the second end of said suction duct, said suction duct being adapted to allow a displacement of said suction strainer in said hydraulic fluid cover, particularly towards the side walls of said hydraulic fluid cover, which is remarkable in that at least one fin is mounted on said suction duct and / or on said suction strainer so as to be in contact with the hydraulic fluid, at least under normal conditions of operation of said veh car icon.
  • such a fin advantageously makes it possible to reduce the response time of the mobile suction strainer suction device when the fluid accumulates in a region of the hydraulic fluid tank under the effect of an external force.
  • the suction device with mobile suction strainer is subjected not only to the same external forces as those acting on the oil, but also to the pressure of the flow of hydraulic fluid which is formed in the hydraulic fluid tarpaulin.
  • said at least one fin is rotatably mounted on said suction duct and / or on said suction strainer.
  • said at least one fin is mounted on said suction duct near said movable suction strainer.
  • said fins are equidistributed angularly.
  • four fins are mounted on said suction duct and / or on said suction strainer.
  • the fins are never all aligned with the flow of hydraulic fluid.
  • said suction duct is "Z" shaped.
  • said suction duct is rigid.
  • the invention also relates to an internal combustion engine comprising a hydraulic fluid tarpaulin and a hydraulic fluid pump provided with a mobile suction strainer suction device immersed in said remarkable tarpaulin in that said device for aspiration suction suction mobile is in accordance with the invention.
  • said suction duct is rotatably mounted relative to said hydraulic pump about an axis substantially perpendicular to the bottom of the tank.
  • the strainer can be moved near the walls of the sheet where the hydraulic fluid tends to accumulate under the effect of external forces such as gravity and / or inertia forces.
  • the axis of rotation of said suction duct corresponds to the median axis of said hydraulic fluid cover.
  • FIG. 1 schematically represents a mobile aspiration suction suction device 10 in fluid communication with a hydraulic pump 12. This fluid communication is preferably sealed so as not to degrade the hydraulic fluid suction by the pump hydraulic 12 because of the presence of leaks.
  • the suction device 10 is disposed in a hydraulic fluid accumulator 16 or "cover" containing a hydraulic fluid 18.
  • the suction device 10, the hydraulic pump 12 and the tank 16 are arranged in an internal combustion engine 20, preferably a motor vehicle engine.
  • the sheet 16 is made in this case with a substantially square section and therefore has side walls 22a, 22b, 22c, 22d parallel in pairs and a bottom 24. Obviously, the sheet may also have a section of different shape, without departing from the scope of the invention.
  • the tarpaulin may in particular have a circular section.
  • the aspiration suction suction device 10 comprises a suction strainer 26, which supports a suction screen 23, immersed in the hydraulic fluid 18 contained in the tank 16.
  • the strainer 26 is in fluid communication with the hydraulic pump 12 by means of a suction duct 28.
  • the suction strainer 26 is preferably continuously separated from the bottom 24 of the cover 26 by a clearance 30. In this case, the bottom 24 of the cover 16 is plan.
  • the suction duct 28 is made in the form of a "Z" duct having a first 28a and a second 28b branches of parallel axes and in fluid communication by means of a transverse branch 28c.
  • the suction pipe 28 in the shape of "Z" is rigid.
  • the suction duct 28 being able to pivot about an axis substantially perpendicular to the bottom 24 of the plane 16, the clearance 30 between the suction screen 26 and the bottom 24 of the cover 16 is substantially constant, regardless of the position of the suction screen 26 in the sheet 16.
  • the suction duct 28 is rotatably mounted relative to the hydraulic pump 12.
  • the axis of rotation of the suction duct 28 corresponds to the median axis of the tank 16.
  • fins 32 are mounted on said suction duct 28, close to the suction screen 26.
  • these fins 32 are rotatably mounted relative to the suction duct 28 and are angularly equilateral.
  • a fin has a surface on which a flow of hydraulic fluid is able to exert a pressure.
  • a fin is formed of a thin plate, preferably substantially flat.
  • the fins 32 here have a rectangular shape, without this form introducing any limitation as to the embodiments of these fins.
  • the fins 32 extend substantially perpendicularly to the bottom 24 plane.
  • a flow of hydraulic fluid 18 is caused, for example, by the effect of gravity, when the engine is tilted, or inertia, when the vehicle negotiates a turn.
  • the same forces also act on the aspiration suction suction device 10.
  • the suction strainer 26 driven by the flow of the hydraulic fluid 18 under the effect of the pressure the flow of hydraulic fluid 18 on the fins, follows the hydraulic fluid 18.
  • the suction strainer suction device 10 gains in speed of response during changes of distribution of the hydraulic fluid 18 in the tank 16.
  • the fins 32 are initially pivoted relative to their axis of rotation so as to be placed in a configuration where the pressure of the fluid on the fins is maximum.
  • this configuration corresponds to the case where two fins are substantially perpendicular to the flow while the other two fins are parallel to the flow. The displacement of the strainer is thus easier. In addition, this optimizes the reaction time of the mobile strainer.
  • the suction duct must be able to allow movement of the suction strainer, especially to the side walls of the tarpaulin.
  • This can be achieved by using a flexible suction duct or by interposing a flexible duct between the suction duct and the hydraulic pump.
  • the gravity or the inertia acting on the hydraulic fluid to press against at least one of the walls side of the sheet participate in the orientation of the suction duct and the suction strainer in the direction of the hydraulic fluid.
  • the fins can also be mounted on the suction duct or on the suction strainer at any location such that the fins are, under normal operating conditions, in contact with the hydraulic fluid.
  • normal conditions of implementation means when the vehicle is traveling on a flat and straight road at constant speed or when it is stopped, the level of hydraulic fluid in the hydraulic fluid tarpaulin being normal.
  • the number of fins, their distribution and their assembly relative to the suction duct can be modified without departing from the scope of the invention.
  • the fins can be mounted fixed or free in rotation relative to the suction duct.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
EP06301095A 2005-11-08 2006-10-27 Ansaugvorrichtung mit beweglichen Ansaugfilter für Fahrzeug Brennkraftmaschine Ölpumpe Withdrawn EP1788205A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0511335A FR2893082B1 (fr) 2005-11-08 2005-11-08 Dispositif d'aspiration a crepine d'aspiration mobile pour pompe hydrauliqie destine a etre plonge dans une bache a fluide hydraulique de moteur de vehicule automobile

Publications (2)

Publication Number Publication Date
EP1788205A2 true EP1788205A2 (de) 2007-05-23
EP1788205A3 EP1788205A3 (de) 2010-07-21

Family

ID=36954472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06301095A Withdrawn EP1788205A3 (de) 2005-11-08 2006-10-27 Ansaugvorrichtung mit beweglichen Ansaugfilter für Fahrzeug Brennkraftmaschine Ölpumpe

Country Status (2)

Country Link
EP (1) EP1788205A3 (de)
FR (1) FR2893082B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2603429A1 (es) * 2016-04-08 2017-02-27 Universidad Europea De Madrid, S.L.U. Sistema de lubricación de máquinas y motores sometidos a aceleraciones
CN107420153A (zh) * 2017-05-22 2017-12-01 宁波里尔汽车技术有限公司 一种防侧倾湿式油底壳

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1369239A (en) * 1920-02-11 1921-02-22 Edward J Gulick Oiling device for internal-combustion engines
JPS5292141U (de) * 1975-12-30 1977-07-09
US4449493A (en) * 1981-08-21 1984-05-22 Filterwerk Mann & Hummel Gmbh Slosh baffle for oil pan of internal combustion engine
JPH0913928A (ja) * 1995-06-29 1997-01-14 Kondo Lacing Gareeji:Kk オイル吸入装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1369239A (en) * 1920-02-11 1921-02-22 Edward J Gulick Oiling device for internal-combustion engines
JPS5292141U (de) * 1975-12-30 1977-07-09
US4449493A (en) * 1981-08-21 1984-05-22 Filterwerk Mann & Hummel Gmbh Slosh baffle for oil pan of internal combustion engine
JPH0913928A (ja) * 1995-06-29 1997-01-14 Kondo Lacing Gareeji:Kk オイル吸入装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 05, 30 mai 1997 (1997-05-30) & JP 09 013928 A (KONDO LACING GAREEJI:KK), 14 janvier 1997 (1997-01-14) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2603429A1 (es) * 2016-04-08 2017-02-27 Universidad Europea De Madrid, S.L.U. Sistema de lubricación de máquinas y motores sometidos a aceleraciones
CN107420153A (zh) * 2017-05-22 2017-12-01 宁波里尔汽车技术有限公司 一种防侧倾湿式油底壳
CN107420153B (zh) * 2017-05-22 2019-11-08 宁波里尔汽车技术有限公司 一种防侧倾湿式油底壳

Also Published As

Publication number Publication date
EP1788205A3 (de) 2010-07-21
FR2893082B1 (fr) 2007-12-14
FR2893082A1 (fr) 2007-05-11

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