EP1076164A1 - Dispositif et procédé de régulation de la pression d'huile dans un moteur à combustion - Google Patents

Dispositif et procédé de régulation de la pression d'huile dans un moteur à combustion Download PDF

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Publication number
EP1076164A1
EP1076164A1 EP00115546A EP00115546A EP1076164A1 EP 1076164 A1 EP1076164 A1 EP 1076164A1 EP 00115546 A EP00115546 A EP 00115546A EP 00115546 A EP00115546 A EP 00115546A EP 1076164 A1 EP1076164 A1 EP 1076164A1
Authority
EP
European Patent Office
Prior art keywords
oil
oil pressure
compression spring
control valve
pressure control
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.)
Granted
Application number
EP00115546A
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German (de)
English (en)
Other versions
EP1076164B1 (fr
Inventor
Johannes Wüst
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1076164A1 publication Critical patent/EP1076164A1/fr
Application granted granted Critical
Publication of EP1076164B1 publication Critical patent/EP1076164B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F01M1/00—Pressure lubrication
    • F01M1/16—Controlling lubricant pressure or quantity

Definitions

  • the invention relates to a device and a method for controlling the Lube oil pressure of an internal combustion engine according to the generic term of the two Main claims.
  • DE 30 33 820 C2 describes a device for regulating the lubricating oil pressure Internal combustion engine known in which the overflow valve determining the oil pressure with is provided with a thermostatically controlled valve body. With help of a Dehnscherses, which is surrounded by the lubricating oil, the bias of the Compression spring acting on the valve body depending on the temperature of the Lubricating oil are changed. If the operation of the internal combustion engine When the lubricating oil heats up, the expansion element expands, causing a second Spring element the bias of the compression spring is reduced, so that the overflow valve opens earlier and thus the lubricating oil pressure in the warm operating state of the Internal combustion engine is reduced. The reduction of the lubricating oil pressure with increasing oil temperature is justified that even under these conditions adequate lubrication of the bearing points can take place.
  • the thermostatic oil pressure control valve according to the invention is provided with means that cause that in the cold operating state of the engine, the opening for Bypass line or for the return line to the suction side of the oil pump released earlier than when in the warm operating state. This will keep the oil pressure in cold operating condition the internal combustion engine lowered, thereby advantageously the specific Fuel consumption can be reduced.
  • the compression spring is monitored thermostatically Oil pressure control valve upstream of an expansion element, which with increasing Lube oil temperature increases the total length of both elements.
  • the compression spring is designed as a thermobimetal, the spring characteristic curve depending on the temperature of the lubricating oil is changed that the spring rate of the compression spring with increasing temperature of the Lubricating oil is increased and vice versa.
  • the compression spring is made of an alloy built up in which due to a reversible temperature-dependent Changes in the microstructure state the spring rate of the compression spring with increasing temperature of the lubricating oil increased.
  • Standard components can be used in all three exemplary embodiments, so that none or only for the thermostatic pressure control valve according to the invention small additional costs arise.
  • an oil pan 12 is not shown in detail Engine lubricated oil and the consumers marked with V, e.g. the Bearings of the crankshaft, connecting rod bearings, bearings of the camshaft etc. fed.
  • V e.g. the Bearings of the crankshaft, connecting rod bearings, bearings of the camshaft etc. fed.
  • the oil pressure control valve 14 is in the essentially from a cup-shaped valve body 16 designed as a working piston, which is longitudinally displaceable in a bore 18 of the housing 20 of the oil pressure control valve 14 is arranged.
  • the valve base 16a of the valve body 16 is by the in the pressure chamber 22 located lubricating oil, shown schematically by the dashed flow line, acted upon.
  • compression spring 24 which in the cup-shaped valve body 16th is inserted and is guided through the valve jacket 16b.
  • the compression spring 24 supports abuts on an expansion element 26 also arranged in the bore 18, which in turn is located on a closure device 28 arranged on the housing 20 supports.
  • opening 30 provided in certain operating states of the engine is released by the valve jacket 16b of the valve body 16.
  • the opening 30 is with a schematically shown return channel 32 in connection, the suction side 33 of the oil pump 10 returns. Seen in the pressure direction of the lubricating oil is behind the Opening 30 arranged a second opening 34 connected to the bore 18, which over a at an acute angle to the bore 18 channel 36 also with the Return line 32 is connected.
  • Oil pressure control valve 14 Opens, for example, with an oil pressure limiter that is not thermostatic is regulated, the pressure control valve at both 20 ° C and 80 ° C oil temperature at a pressure of 6 bar, for example, opens in the embodiment Oil pressure control valve 14 described at an oil temperature of 20 ° C, for example at 4 bar, while at an oil temperature of 80 ° C, the oil pressure control valve 14 only at 6 bar Oil pressure opens. This will reduce the specific fuel consumption, especially in the cold start phase of the engine. At the same time it is ensured that a sufficient both in the cold and in the warm state of the engine Oil quantity reaches the consumers.
  • the opening of the opening 30 by the Working piston 16 can be controlled via a corresponding spring characteristic be that the oil pressure with a further increase in the engine speed not to one constant value is maintained, but continues with a smaller slope than before Opening of the oil pressure control valve increased. This takes into account the fact that in the upper speed range of the engine for a reliable Lubrication requires a higher oil pressure.
  • FIG 2 is a second and third embodiment of a thermostatically controlled Oil pressure control valve 14 shown, the same components with the same reference numerals are provided.
  • a compression spring 24 'as Thermobimetal is formed.
  • Known as composite materials in these Thermobimetals change the spring characteristic depending on the temperature.
  • the compression spring 24 ′′ is an alloy with so-called shape memory effect. This is based on reversible temperature-dependent changes in structure, the change in Spring characteristic due to the structural transformation in the thermostatically controlled Oil pressure control valve 14 can in turn be used in the desired sense.
  • Alloys known from the literature are e.g. Nickel titanium, copper zinc aluminum and Copper-aluminum-nickel (see “Metallfedern”, Springer-Verlag, 1997, p. 55ff.)

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP00115546A 1999-08-12 2000-07-19 Dispositif et procédé de régulation de la pression d'huile dans un moteur à combustion Expired - Lifetime EP1076164B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19938285 1999-08-12
DE19938285A DE19938285A1 (de) 1999-08-12 1999-08-12 Einrichtung zur Regelung des Schmieröldruckes einer Brennkraftmaschine

Publications (2)

Publication Number Publication Date
EP1076164A1 true EP1076164A1 (fr) 2001-02-14
EP1076164B1 EP1076164B1 (fr) 2005-01-12

Family

ID=7918213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00115546A Expired - Lifetime EP1076164B1 (fr) 1999-08-12 2000-07-19 Dispositif et procédé de régulation de la pression d'huile dans un moteur à combustion

Country Status (2)

Country Link
EP (1) EP1076164B1 (fr)
DE (2) DE19938285A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2815669A1 (fr) * 2000-10-19 2002-04-26 Daimler Chrysler Ag Bloc regulateur de pression et pompe a huile pour un circuit d'huile de lubrification d'un moteur a combustion interne
US6896489B2 (en) 2000-12-12 2005-05-24 Borgwarner Inc. Variable displacement vane pump with variable target regulator
EP2511490A4 (fr) * 2009-12-07 2016-04-20 Tbk Co Ltd Dispositif d'alimentation en huile lubrifiante pour moteur
FR3048452A1 (fr) * 2016-03-07 2017-09-08 Renault Sas Gicleur de refroidissement de piston
CN112284915A (zh) * 2020-10-21 2021-01-29 天津大学 一种可调频、调压式自动打压系统及方法
CN114542231A (zh) * 2022-01-19 2022-05-27 潍柴动力股份有限公司 发动机机油压力控制方法、系统和发动机

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7674095B2 (en) 2000-12-12 2010-03-09 Borgwarner Inc. Variable displacement vane pump with variable target regulator
US7726948B2 (en) 2002-04-03 2010-06-01 Slw Automotive Inc. Hydraulic pump with variable flow and variable pressure and electric control
DE10220838C1 (de) * 2002-05-08 2003-12-18 Porsche Ag Brennkraftmaschine
US6807936B1 (en) 2003-05-15 2004-10-26 Mtd Products Inc Oil pressure control valve by sliding camshaft for an internal combustion engine
DE102010046316B4 (de) * 2010-09-23 2020-03-19 Audi Ag Pumpenantrieb mit Viskokupplung und mechanischer Drehzahlregelung
WO2018047049A1 (fr) * 2016-09-06 2018-03-15 Tvs Motor Company Limited Système de lubrification et de refroidissement d'un moteur à combustion interne

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120212B (de) * 1959-05-12 1961-12-21 Volkswagenwerk Ag Schmieroelkreislauf fuer Brennkraftmaschinen
US3353590A (en) * 1965-07-12 1967-11-21 Holman And Moody Inc Unitary oil filtering and cooling attachment for internal combustion engines
DE3033820A1 (de) * 1980-09-09 1982-03-25 Audi Nsu Auto Union Ag, 7107 Neckarsulm Einrichtung zur regelung des schmieroeldruckes einer brennkraftmaschine
EP0376150A2 (fr) * 1988-12-24 1990-07-04 Klöckner-Humboldt-Deutz Aktiengesellschaft Moteur à combustion interne avec deux circuits à liquide hydraulique
EP0661486A1 (fr) * 1993-11-30 1995-07-05 Procedes Vernet S.A. Soupape thermostatique
DE19631296A1 (de) * 1996-08-02 1998-02-05 Ford Werke Ag Vorrichtung zur Begrenzung des Öldrucks in dem Schmierölkreislauf einer Verbrennungskraftmaschine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6911651U (de) * 1969-03-21 1969-07-24 Schuermann & Co Heinz Schiebefenster oder schiebetuer
DE2546273C2 (de) * 1975-10-16 1984-11-22 Audi Nsu Auto Union Ag, 7107 Neckarsulm Vorrichtung zur Regelung der Kolbenölkühlung für eine Kolbenbrennkraftmaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1120212B (de) * 1959-05-12 1961-12-21 Volkswagenwerk Ag Schmieroelkreislauf fuer Brennkraftmaschinen
US3353590A (en) * 1965-07-12 1967-11-21 Holman And Moody Inc Unitary oil filtering and cooling attachment for internal combustion engines
DE3033820A1 (de) * 1980-09-09 1982-03-25 Audi Nsu Auto Union Ag, 7107 Neckarsulm Einrichtung zur regelung des schmieroeldruckes einer brennkraftmaschine
EP0376150A2 (fr) * 1988-12-24 1990-07-04 Klöckner-Humboldt-Deutz Aktiengesellschaft Moteur à combustion interne avec deux circuits à liquide hydraulique
EP0661486A1 (fr) * 1993-11-30 1995-07-05 Procedes Vernet S.A. Soupape thermostatique
DE19631296A1 (de) * 1996-08-02 1998-02-05 Ford Werke Ag Vorrichtung zur Begrenzung des Öldrucks in dem Schmierölkreislauf einer Verbrennungskraftmaschine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2815669A1 (fr) * 2000-10-19 2002-04-26 Daimler Chrysler Ag Bloc regulateur de pression et pompe a huile pour un circuit d'huile de lubrification d'un moteur a combustion interne
US6896489B2 (en) 2000-12-12 2005-05-24 Borgwarner Inc. Variable displacement vane pump with variable target regulator
EP2511490A4 (fr) * 2009-12-07 2016-04-20 Tbk Co Ltd Dispositif d'alimentation en huile lubrifiante pour moteur
FR3048452A1 (fr) * 2016-03-07 2017-09-08 Renault Sas Gicleur de refroidissement de piston
EP3216993A1 (fr) * 2016-03-07 2017-09-13 Renault s.a.s Gicleur de refroidissement de piston
CN112284915A (zh) * 2020-10-21 2021-01-29 天津大学 一种可调频、调压式自动打压系统及方法
CN114542231A (zh) * 2022-01-19 2022-05-27 潍柴动力股份有限公司 发动机机油压力控制方法、系统和发动机
CN114542231B (zh) * 2022-01-19 2023-04-18 潍柴动力股份有限公司 发动机机油压力控制方法、系统和发动机

Also Published As

Publication number Publication date
EP1076164B1 (fr) 2005-01-12
DE19938285A1 (de) 2001-02-22
DE50009197D1 (de) 2005-02-17

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