EP1777382B1 - Dispositif de régulation de pression - Google Patents

Dispositif de régulation de pression Download PDF

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Publication number
EP1777382B1
EP1777382B1 EP20060018749 EP06018749A EP1777382B1 EP 1777382 B1 EP1777382 B1 EP 1777382B1 EP 20060018749 EP20060018749 EP 20060018749 EP 06018749 A EP06018749 A EP 06018749A EP 1777382 B1 EP1777382 B1 EP 1777382B1
Authority
EP
European Patent Office
Prior art keywords
lubricant
control
pressure
control surface
piston
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.)
Active
Application number
EP20060018749
Other languages
German (de)
English (en)
Other versions
EP1777382A2 (fr
EP1777382A3 (fr
Inventor
Vojin Subasic
Christian Schübl
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP1777382A2 publication Critical patent/EP1777382A2/fr
Publication of EP1777382A3 publication Critical patent/EP1777382A3/fr
Application granted granted Critical
Publication of EP1777382B1 publication Critical patent/EP1777382B1/fr
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Anticipated expiration legal-status Critical

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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 pressure control unit having the features of the preamble of patent claim 1.
  • the pressure control unit has a control over which the pressure in the lubricant circuit is adjustable, in particular limited, wherein the control element is acted upon on the one hand by a hydraulic fluid dependent on the pressure of the lubricant circuit and on the other hand by the spring force of a mechanical spring.
  • an automatic actuating means such as. B. an expansion element or a bimetallic element, is assigned to the lubricant temperature-dependent adjustment of the spring force.
  • the proposed pressure control unit is mainly used in motor vehicles, especially passenger cars.
  • a disadvantage of the proposed embodiment is the use of the additional actuating means to regulate the temperature of the pressure of the lubricant circuit or to control.
  • Object of the present invention is to show a pressure control unit that allows a temperature-dependent pressure control in a lubricant circuit without additional adjusting means.
  • the embodiment according to claim 2 represents a preferred embodiment.
  • Fig. 1 schematically shows a lubricant circulation lubrication 3 with a pressure control unit 1.
  • a pump 2 which is arranged in the lubricant circulation lubrication 3, has a suction side 2b and a discharge pressure side 2a.
  • the suction side 2b is lubricant-leading connected to a suction point 11a of a lubricant container 11.
  • the pump 2 conveys the lubricant on the delivery pressure side through at least one lubricant line 4, in the present embodiment four, lubricant consumers 4a (eg, lubrication points, piston cooling, etc.) from where it flows via return points 11b into the lubricant container 11.
  • the pressure control unit 1 is arranged in the lubricant circulation lubrication 3 parallel to the pump 2.
  • the pressure control unit 1 is two times Schmierierarranged connected to the delivery pressure side 2a, and once with any subsequent location of the lubricant line 4, in the conveying direction after at least one lubricant consumer 4. Further, the pressure control unit 1 is lubricating means connected to the suction side 2b of the lubricant circulation lubrication 3.
  • a pressure P 2 is located on the suction side 2b on the discharge pressure side 2 in the conveying direction to at least one lubricant consumers 4a.
  • the functional principle is based on a preferred exemplary embodiment of the pressure control unit 1 in FIG Fig. 2 explained in more detail.
  • Fig. 2 shows a section through a preferred embodiment of the pressure control unit according to the invention 1.
  • the pressure control unit 1 is in a housing 5 integrated.
  • This housing 5 may be a separate housing or a machine housing, for example a crankcase of an internal combustion engine.
  • the pump 2 is further integrated, which according to the block diagram in Fig. 1 is connected to the pressure control unit 1 lubricant leading.
  • the pump 2 can also be designed as a separate pump.
  • the pressure control unit 1 consists essentially of an axially slidable in the housing 5 control piston 6.
  • the control piston 6 is in the present embodiment, a largely cylindrical stepped piston, which forms a bypass chamber 7 with a closable bypass opening 7a with the housing 5.
  • the control piston 6 has in the bypass chamber 7 a first control surface 6a, which controls the lubricant mass flow through the bypass opening 7a.
  • the delivery pressure side 2a and the suction side 2b are lubricant-leading connectable, wherein a flow cross-section of the bypass opening 7a is changed by a displacement of the control piston 6 in the housing 5.
  • control piston 6 On one end face, the control piston 6 also has a second control surface 6b and a third control surface 6c arranged coaxially therewith.
  • the second control surface 6b forms with the housing 5 a second control chamber 9
  • the third control surface 6c forms with the housing 5, a third control chamber 10.
  • the second control chamber 9 is lubricating means leading to the delivery pressure side 2a.
  • the third control chamber 10 is lubricant-leading connected to the lubricant circulation lubrication 3 in the conveying direction after a lubricant consumer 4a.
  • control chambers 9, 10 acted upon by lubricant pressure, act the second and the third control surface 6b, 6c against a spring force of a spring element 8, which is arranged on the control surfaces 6b, 6c opposite end face of the control piston 6 and supported against the housing 5.
  • the control piston 6 is pressed in accordance with the pressure ratio in the two control chambers 9 and 10 against the spring force of the spring element 8, whereby a defined lubricant pressure in the lubricant circulation lubrication 3 sets.
  • the lubricant requirement is better adapted to the requirements of the internal combustion engine. Since the lubricant pressure in the lubricant circuit after the pump 2 continues to decrease, the third control chamber 10 at any Place with the lubricant line 4 in the conveying direction according to a lubricant consumer 4a be lubricant-leading connected. Due to the ever-present pressure drop over the path length in the lubricant line 4 is thus always given a temperature-dependent control. By choosing the cross section of the bypass opening 7a and the area ratios of the second and the third control surface 6b, 6c, the system can be adjusted according to required information. The spring stiffness of the spring element 8 and the spring preload are interpreted as in the usual pumps according to the rule.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Claims (2)

  1. Unité de régulation de pression (1) pour un moteur à combustion interne comportant une pompe (2) ayant un côté refoulement (2a) et un côté aspiration (2b) pour permettre la circulation d'un agent de lubrification d'au moins un consommateur d'agent de lubrification (4) dans un circuit (3), cette unité de régulation de pression (1) étant essentiellement constituée par un piston de commande (6) monté coulissant dans un carter (5), le piston de commande (6) et le carter (5) définissant une chambre de dérivation (7) et une ouverture de dérivation (7a) pouvant être fermée, qui est reliée avec le côté refoulement (2a) et peut être reliée au côté aspiration (2b), de façon à permettre le passage de l'agent de lubrification le piston de commande (6) pouvant être déplacé par la pression de refoulement agissant sur une seconde surface de commande (6b) contre la force d'un ressort (8),
    caractérisée en ce que
    le piston de commande (6) comporte, sur son côté situé à l'opposé du ressort (8) une troisième surface de commande (6c) qui est coaxiale à la seconde surface de commande (6b), le piston de commande (6) comportant en outre sur une face frontale la seconde surface de commande (6b) et la troisième surface de commande (6c), la seconde surface de commande (6b) formant, avec le boîtier (5) une seconde chambre de commande (9) et la troisième surface de commande (6c) formant avec le boîtier (5) une troisième chambre de commande (10), la seconde chambre de commande (9) étant reliée de façon à permettre la circulation de l'agent de lubrification au côté refoulement (2a) et la troisième chambre de commande (10) étant reliée de façon à permettre la circulation de l'agent de lubrification au circuit de circulation de l'agent de lubrification (3) dans le sens de refoulement vers un consommateur d'agent de refoulement (4).
  2. Unité de régulation de pression conforme à la revendication 1,
    caractérisée en ce que
    la seconde et la troisième chambres de commande (9,10) sont formées par un piston étagé.
EP20060018749 2005-10-19 2006-09-07 Dispositif de régulation de pression Active EP1777382B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510050063 DE102005050063A1 (de) 2005-10-19 2005-10-19 Druckregeleinheit

Publications (3)

Publication Number Publication Date
EP1777382A2 EP1777382A2 (fr) 2007-04-25
EP1777382A3 EP1777382A3 (fr) 2010-07-07
EP1777382B1 true EP1777382B1 (fr) 2014-11-05

Family

ID=37763931

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20060018749 Active EP1777382B1 (fr) 2005-10-19 2006-09-07 Dispositif de régulation de pression

Country Status (2)

Country Link
EP (1) EP1777382B1 (fr)
DE (1) DE102005050063A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0617369D0 (en) * 2006-09-02 2006-10-11 Ford Global Tech Llc Pressure relief valve
DE102008048856A1 (de) 2008-09-25 2010-04-08 Bayerische Motoren Werke Aktiengesellschaft Druckregeleinheit
DE102010051290A1 (de) * 2010-11-12 2012-05-16 Bayerische Motoren Werke Aktiengesellschaft Regelvorrichtung für eine Umlaufschmierung
US8720849B2 (en) * 2011-03-31 2014-05-13 Magna Powertrain Inc. Low gain pressure relief valve for a fluid pump
FR3023319B1 (fr) * 2014-07-07 2019-06-28 Renault S.A.S Dispositif d'alimentation en huile pour le refroidissement des pistons d'un moteur a combustion interne
CN106763948B (zh) * 2017-02-20 2023-06-16 广西玉柴机器股份有限公司 呼吸器回油阀

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD20548A (fr) *
US2298646A (en) * 1940-10-08 1942-10-13 Wright Aeronautical Corp Lubrication system
US2536663A (en) * 1944-02-24 1951-01-02 Sulzer Ag Pressure regulating system for filters
FR2556775B1 (fr) * 1983-12-20 1988-02-05 Citroen Sa Dispositif de limitation de la pression dans un circuit de lubrification de moteur
DE4224973C2 (de) * 1992-07-29 1995-08-03 Glyco Metall Werke Fluidversorgungssystem mit Druckbegrenzung
JPH06200725A (ja) * 1993-01-08 1994-07-19 Nissan Motor Co Ltd エンジンの潤滑油供給装置
JPH0763026A (ja) * 1993-08-20 1995-03-07 Nissan Motor Co Ltd エンジンの潤滑油供給装置
DE10141786B4 (de) * 2001-08-25 2008-12-24 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Einrichtung zur Regelung des Schmieröldruckes einer Brennkraftmaschine
DE10253576A1 (de) * 2002-11-15 2004-05-27 Mann + Hummel Gmbh Flüssigkeitsmodul
DE102004049029B4 (de) * 2004-10-08 2015-05-21 Audi Ag Vorrichtung und Verfahren zur Regelung eines Schmieröldrucks eines Verbrennungsmotors

Also Published As

Publication number Publication date
EP1777382A2 (fr) 2007-04-25
EP1777382A3 (fr) 2010-07-07
DE102005050063A1 (de) 2007-04-26

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