EP0940622A1 - Moteur à combustion interne - Google Patents

Moteur à combustion interne Download PDF

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Publication number
EP0940622A1
EP0940622A1 EP99890065A EP99890065A EP0940622A1 EP 0940622 A1 EP0940622 A1 EP 0940622A1 EP 99890065 A EP99890065 A EP 99890065A EP 99890065 A EP99890065 A EP 99890065A EP 0940622 A1 EP0940622 A1 EP 0940622A1
Authority
EP
European Patent Office
Prior art keywords
oil
oil pump
pair
gear
gears
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
EP99890065A
Other languages
German (de)
English (en)
Other versions
EP0940622B1 (fr
Inventor
Heinz Klaus
Gerald Buha
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.)
TCG Unitech AG
Original Assignee
TCG Unitech 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 TCG Unitech AG filed Critical TCG Unitech AG
Publication of EP0940622A1 publication Critical patent/EP0940622A1/fr
Application granted granted Critical
Publication of EP0940622B1 publication Critical patent/EP0940622B1/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
    • 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
    • F01M1/12—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10
    • F01M2001/123—Closed-circuit lubricating systems not provided for in groups F01M1/02 - F01M1/10 using two or more pumps

Definitions

  • the present invention relates to an internal combustion engine with at least one pair of gears meshing with each other, at least one Intake opening and at least one discharge opening.
  • Oil pumps for internal combustion engines which are provided in particular in motor vehicles, are mostly designed as gear pumps. They consist of a pair of gears that mesh with each other, the oil production is caused by the displacement of the teeth. The The pumping effect of such gear pumps depends essentially linearly on the speed with which these gear pumps are driven. Since the drive is generally direct The delivery rate is therefore essentially proportional via the internal combustion engine itself to the speed of the internal combustion engine. The for the operation of the internal combustion engine However, the amount of oil required is not linearly dependent on the speed. This means that in some speed ranges, especially at low speeds, the danger of lack of oil supply, while in other speed ranges a relatively large one Quantity must be controlled via pressure relief valves.
  • the object of the present invention is to provide an oil pump of the type described in the introduction to further develop such that these disadvantages are avoided.
  • these objects are achieved in that at least two gear pairs are provided are that a first common shaft is provided, on each of which a first gear A pair of gears is arranged, and that means are provided to the individual To apply gear pairs with oil depending on the required oil flow.
  • the solution according to the invention is designed so that with a relatively low oil requirement only one Gear pair takes over the actual promotion. At maximum oil demand, everyone will Gear pairs used parallel to each other for conveying.
  • Gear pair is assigned its own suction opening and its own discharge opening and if a valve is provided to selectively connect at least one suction opening with the to connect the associated discharge opening.
  • the idling gear pair (s) is / are operated in circulation and essentially without pressure, so that cooling and Lubrication is guaranteed, but with the exception of friction losses, no drive torque is required for the movement of the gears.
  • a control valve is provided to selectively supply the individual gear pairs with oil, and that the oil pressure in the discharge line as a control pressure for this switching valve is used.
  • an electronic Control device is provided to apply oil to the individual gear pairs.
  • the oil pump according to the invention can be intelligently used by engine management being controlled. In this way it is also possible to meet any additional oil requirements cover, for example, from a device for changing the setting angle Camshaft results.
  • a Intake line 11 which is in a reservoir 12, such as the oil pan one not closer Internal combustion engine shown, leads, connected to the first intake port 8a.
  • the first discharge port 8b is provided with an oil supply line 13 to be lubricated Leads components, connected. Furthermore, in this position of the valve 10 second suction opening 9a and the second discharge opening 9b connected to each other so that the gear pair 6a, 6b is operated in the short circuit.
  • the control of the valve 10 can be carried out according to the invention in such a way that at low Oil pressure, the control valve 10 is in any case in the third position. If a first is exceeded Pressure limit can be switched to the second state, and if this pressure is reached again, can be switched to the third state. As an alternative, however, the switchover of the valve 10 can also be carried out via the engine management respectively. This has the additional advantage that, for example, during a cold start or in other operating conditions in which a large oil output is required, the Valve 10 can be brought into the third position. Even if additional oil consumption sources, how certain actuators are switched on, that can Engine management already provide a higher oil pressure in advance.
  • FIG. 2 A possible embodiment of an oil pump according to the invention is shown in FIG. 2.
  • a ring gear 15a and a ring gear 15a are engaged in a housing 1 standing gear 15b provided.
  • the gears 15a and 15b are eccentric to one another, to be engaged.
  • a guide element 16 is provided, which separates the suction chamber 17 from the discharge chamber 18. It will be there assumed that the gears 15a, 15b rotate in the direction of arrow 19.
  • the curve 20 corresponds to the disproportionately increasing Oil requirement of the internal combustion engine.
  • the solid line 21 corresponds to the Oil flow rate of a known oil pump.
  • the graduated line 22 shown broken is the characteristic curve of an oil pump according to the invention. 3 shows that the performance of the known oil pump according to the characteristic 21 is essential increases faster than oil demand (curve 20). Although in the low speed range Area 23, in which the oil flow rate is too low with the known pump, is the Oil flow rate at higher speeds much larger than the actual demand.
  • the present invention makes it possible to create an oil pump that is a better one Oil supply to the engine is guaranteed, and the other hand a lower one Has power requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
EP99890065A 1998-02-26 1999-02-25 Pompe à huile Expired - Lifetime EP0940622B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0034898A AT407563B (de) 1998-02-26 1998-02-26 Ölpumpe für eine brennkraftmaschine mit innerer verbrennung
AT34898 1998-02-26

Publications (2)

Publication Number Publication Date
EP0940622A1 true EP0940622A1 (fr) 1999-09-08
EP0940622B1 EP0940622B1 (fr) 2003-05-28

Family

ID=3488236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99890065A Expired - Lifetime EP0940622B1 (fr) 1998-02-26 1999-02-25 Pompe à huile

Country Status (4)

Country Link
US (1) US6206651B1 (fr)
EP (1) EP0940622B1 (fr)
AT (2) AT407563B (fr)
DE (1) DE59905695D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1693553A3 (fr) * 2005-02-18 2010-05-26 Dr. Ing. h.c. F. Porsche AG Méthode pour contrôler une pompe à huile d'un moteur

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110129359A1 (en) * 2009-11-30 2011-06-02 Caterpillar Inc. Variable output pump
KR101326850B1 (ko) * 2012-10-04 2013-11-11 기아자동차주식회사 오일펌프 제어 시스템 및 방법
KR101680648B1 (ko) * 2015-09-10 2016-11-30 명화공업주식회사 듀얼 펌프 시스템

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR498749A (fr) * 1916-01-18 1920-01-21 Sunbeam Motor Car Co Ltd Perfectionnements aux systèmes de graissage pour moteurs à combustion interne
JPS5926692A (ja) * 1982-07-31 1984-02-10 Isuzu Motors Ltd 車両用潤滑油系の運転制御方法
DE3639122A1 (de) * 1986-11-15 1987-11-19 Mtu Friedrichshafen Gmbh Pumpenanordnung
DE3814750A1 (de) * 1988-04-30 1989-02-02 Mtu Friedrichshafen Gmbh Einrichtung zum antrieb einer schmiermittelpumpe einer brennkraftmaschine
DE19525890A1 (de) * 1995-07-15 1997-01-16 Ingelheim Peter Graf Von Regelsystem zur stufenlosen Drehzahlregelung von Arbeitsmaschinen, insbesondere von Fahrzeuglichtmaschinen und Schmierölpumpen

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068795A (en) * 1956-10-18 1962-12-18 Borg Warner Hydraulic power system
US3385217A (en) * 1966-02-21 1968-05-28 Marcus J. Bles Hydraulic pressure booster
US4002027A (en) * 1973-10-01 1977-01-11 Tyrone Hydraulics, Inc. Multiple pump control system
DE3139187A1 (de) * 1981-10-02 1983-04-21 Volkswagenwerk Ag, 3180 Wolfsburg "zahnradpumpe zur foerderung von fluessigkeiten, insbesondere schmieroelpumpe fuer brennkraftmaschinen"
DE3666606D1 (en) * 1985-05-09 1989-11-30 Barmag Barmer Maschf Variable capacity pump
DE3614819A1 (de) * 1986-05-02 1987-11-12 Kloeckner Humboldt Deutz Ag Innenverzahnte doppelpumpe mit gemeinsamer ansaugung und getrennten druckausgaengen
DE3743261A1 (de) * 1987-12-19 1989-06-29 Kloeckner Humboldt Deutz Ag Doppelpumpe fuer ein foerdermedium mit unterschiedlichen foerdermengen und foerderdruecken
DE3837599A1 (de) * 1988-11-05 1990-05-10 Daimler Benz Ag Zahnradpumpe mit zwei im pumpengehaeuse nebeneinander angeordneten zahnradpaaren
JP2776882B2 (ja) * 1989-04-27 1998-07-16 株式会社ユニシアジェックス ポンプ装置
DE4129854A1 (de) * 1991-09-07 1993-03-11 Teves Gmbh Alfred Zahnradpumpe mit einer nichtlinear von der drehzahl abhaengenden foerdermenge
DE19622688A1 (de) * 1996-06-05 1997-12-11 Bayerische Motoren Werke Ag Brennkraftmaschine mit mittels schmierölversorgten gesonderten Hydraulikkreisen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR498749A (fr) * 1916-01-18 1920-01-21 Sunbeam Motor Car Co Ltd Perfectionnements aux systèmes de graissage pour moteurs à combustion interne
JPS5926692A (ja) * 1982-07-31 1984-02-10 Isuzu Motors Ltd 車両用潤滑油系の運転制御方法
DE3639122A1 (de) * 1986-11-15 1987-11-19 Mtu Friedrichshafen Gmbh Pumpenanordnung
DE3814750A1 (de) * 1988-04-30 1989-02-02 Mtu Friedrichshafen Gmbh Einrichtung zum antrieb einer schmiermittelpumpe einer brennkraftmaschine
DE19525890A1 (de) * 1995-07-15 1997-01-16 Ingelheim Peter Graf Von Regelsystem zur stufenlosen Drehzahlregelung von Arbeitsmaschinen, insbesondere von Fahrzeuglichtmaschinen und Schmierölpumpen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 120 (M - 300) 6 June 1984 (1984-06-06) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1693553A3 (fr) * 2005-02-18 2010-05-26 Dr. Ing. h.c. F. Porsche AG Méthode pour contrôler une pompe à huile d'un moteur

Also Published As

Publication number Publication date
ATA34898A (de) 2000-08-15
US6206651B1 (en) 2001-03-27
ATE241775T1 (de) 2003-06-15
DE59905695D1 (de) 2003-07-03
EP0940622B1 (fr) 2003-05-28
AT407563B (de) 2001-04-25

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