DE19621936A1 - Combustion engine oil circuit with inbuilt filter - Google Patents

Combustion engine oil circuit with inbuilt filter

Info

Publication number
DE19621936A1
DE19621936A1 DE1996121936 DE19621936A DE19621936A1 DE 19621936 A1 DE19621936 A1 DE 19621936A1 DE 1996121936 DE1996121936 DE 1996121936 DE 19621936 A DE19621936 A DE 19621936A DE 19621936 A1 DE19621936 A1 DE 19621936A1
Authority
DE
Germany
Prior art keywords
oil
circuit
cyclone
centrifuge
cleaned
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
DE1996121936
Other languages
German (de)
Other versions
DE19621936C2 (en
Inventor
Frhr Von Esebeck
Rene Dipl Ing Reif
Rolf Dr Duerrstein
Robert Dipl Ing Ostertag
Martin Dipl Ing Weindorf
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.)
Mann and Hummel GmbH
Original Assignee
Daimler Benz AG
Mercedes Benz AG
Filterwerk Mann and Hummel GmbH
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 Daimler Benz AG, Mercedes Benz AG, Filterwerk Mann and Hummel GmbH filed Critical Daimler Benz AG
Priority to DE1996121936 priority Critical patent/DE19621936C2/en
Publication of DE19621936A1 publication Critical patent/DE19621936A1/en
Application granted granted Critical
Publication of DE19621936C2 publication Critical patent/DE19621936C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/18—Heating or cooling the filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/04—Combinations of filters with settling tanks
    • B01D36/045—Combination of filters with centrifugal separation devices
    • 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
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • 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
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • 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
    • F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
    • F01M5/002—Cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

Dirt content of the oil is concentrated in a circuited cyclone (10) so the cleaned oil returns to circuit as opposed to the oil concentrate in the cyclone which is fed to a continuous centrifuge (11). Cleaned oil may be fed to a sump (1) and the valve (3) controlling the division into main and regulating circuits (9) functions on the basis of oil pressure upstream of the lubricating points. At the base 4/2 valve setting, oil is pumped (2) through filter (4) and cooler (5) to consumer points (7), feeding this pressure back (8) to switch the regulating valve over to ensure required oil pressure on demand. Cyclone and centrifuge progressively clean oil prior to return to circuit via collecting sump.

Description

Die Erfindung betrifft einen Ölkreislauf in einem Ver­ brennungsmotor nach der im Oberbegriff des Anspruchs 1 näher definierten Art.The invention relates to an oil circuit in a Ver Internal combustion engine according to the preamble of claim 1 Art.

Aus der DE 40 37 983 A1 ist ein Zyklon bekannt, der Öl aus einem aus dem Kurbelgehäuse einer Brennkraftma­ schine austretenden Gasstrom ausscheidet.A cyclone, the oil, is known from DE 40 37 983 A1 from a crankcase of an internal combustion engine escaping gas stream exits.

Aus der DE 41 17 152 C1 ist eine Brennkraftmaschine mit einem Haupt- und einem Nebenölkreislauf bekannt, wobei eine Hauptschmierverteilerleitung des Hauptöl­ kreislaufes und eine Spritzölverteilerleitung des Ne­ benölkreislaufes mit einem druckgesteuerten Ventil verbunden sind.DE 41 17 152 C1 is an internal combustion engine known with a main and a secondary oil circuit, with a main lubrication rail of the main oil circuit and a spray oil distributor line of the Ne oil circuit with a pressure-controlled valve are connected.

Weiterhin sind aus der Praxis Ölkreisläufe in Verbren­ nungsmotoren bekannt, bei denen das Öl jeweils in ei­ nen Hauptkreislauf und einen Nebenkreislauf bzw. Abre­ gelkreislauf aufgeteilt wird. Diese Abregelkreisläufe werden verwendet, um den bei hohen Drehzahlen erhöhten Volumenstrom durch Zurückführen einer Teilmenge in die Ölwanne an den Schmierstellen niedrig zu halten. Im Hauptkreislauf befindet sich meist ein Ölfilter, der als Papier-, Vlies- oder Siebfilter ausgeführt sein kann und der somit nur eine mehr oder weniger grobe Reinigung des Öls ermöglicht, was insbesondere bei Dieselmotoren zu einem relativ hohen Feinschmutzgehalt im Ölkreislauf führt.In practice, oil circuits are still in use voltage engines known, in which the oil in each case in egg NEN main circuit and a secondary circuit or Abre gel cycle is divided. These control loops are used to increase the speed at high speeds  Volume flow by returning a subset to the Keep the oil pan low at the lubrication points. in the The main circuit is usually an oil filter, which be designed as paper, fleece or screen filters can and therefore only a more or less rough Purification of the oil enables what, in particular Diesel engines with a relatively high level of fine dirt leads in the oil circuit.

Der vorliegenden Erfindung liegt daher die Aufgabe zu­ grunde, einen Ölkreislauf der eingangs erwähnten Art zu schaffen, der eine bessere Reinigung, einen niedri­ geren Schmutzgehalt im Ölkreislauf und eine damit ver­ bundene erhöhte Lebensdauer des Motors sowie einen ge­ ringeren Wartungsaufwand ermöglicht.The present invention therefore has the object reasons, an oil circuit of the type mentioned to create a better cleaning, a lower low dirt content in the oil circuit and a ver tied increased engine life and a ge allows less maintenance.

Erfindungsgemäß wird diese Aufgabe durch die im kenn­ zeichnenden Teil des Anspruchs 1 genannten Merkmale gelöst.According to the invention, this task is characterized by the drawing part of claim 1 mentioned features solved.

Durch das erfindungsgemäße Vorsehen eines Zyklons und einer Zentrifuge im Abregelkreislauf wird das abgere­ gelte Öl feinstgereinigt, wobei nur die teilweise er­ hebliche Abregelmenge gereinigt wird. Somit wird in kritischen Betriebsbereichen, wie z. B. im Heißleer­ lauf, der ganze von der Pumpe geförderte Volumenstrom den Schmierstellen zugeführt. Durch den hohen Diffe­ renzdruck, der am Zyklon anliegt, und dem relativ ho­ hen Durchflußvolumenstrom kann eine sehr große Ölmenge vorgereinigt werden, wobei das verschmutzte Öl aufkon­ zentriert wird. Das durch den Zyklon aufkonzentrierte Schmutzöl wird dann der Zentrifuge zur Abscheidung zu­ geführt. Dadurch wird der Schmutzgehalt im Ölkreislauf niedrig gehalten und somit eine wesentliche Verlänge­ rung der Ölwechselintervalle erreicht.By providing a cyclone and a centrifuge in the regulating circuit removes this apply oil finely cleaned, whereby only the partial he considerable control quantity is cleaned. Thus in critical operating areas, such as B. in hot water run, the entire volume flow conveyed by the pump fed to the lubrication points. Through the high diffe pressure that is applied to the cyclone and the relatively high hen flow volume flow can be a very large amount of oil are pre-cleaned, the contaminated oil is centered. That concentrated by the cyclone Dirty oil is then added to the centrifuge for separation guided. This causes the dirt content in the oil circuit kept low and therefore a substantial extension  Oil change intervals reached.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und aus dem nachfolgend anhand der Zeichnung prinzipmäßig be­ schriebenen Ausführungsbeispiel.Advantageous refinements and developments of Invention result from the dependent claims and from which in principle be based on the drawing below written embodiment.

Die einzige Zeichnung zeigt den Aufbau eines Ölkreis­ laufs mit einem Abregelkreislauf.The only drawing shows the structure of an oil circuit run with a control loop.

Gemäß diesem Ausführungsbeispiel wird Öl aus einer Öl­ wanne 1 mittels einer Ölpumpe 2 durch ein Abregelven­ til 3 gepumpt, welches beispielsweise als 4/2-Wegeven­ til ausgeführt ist. Befindet sich das Abregelventil 3 in seiner in der Figur dargestellten Grundstellung, so fließt das Öl weiter durch einen Grobölfilter 4 und einen Ölkühler 5, dem ein Überdruckventil 6 parallel geschaltet ist, zu nicht näher dargestellten Verbrau­ chern bzw. Schmierstellen 7. Das Überdruckventil 6 dient dazu, den Ölstrom bei hohem Druck, wie z. B. beim Kaltstart, nicht dem Ölkühler 5 zuzuführen, da dieser sonst Schaden nehmen könnte. Statt dessen wird das Öl dann über das Überdruckventil 6 geleitet. Nach Pas­ sieren der Schmierstellen 7 gelangt das Öl wieder zu­ rück in die Ölwanne 1.According to this embodiment, oil is pumped from an oil pan 1 by means of an oil pump 2 through a regulating valve 3 , which is designed, for example, as a 4/2 way valve. The shutoff valve 3 is in its basic position shown in the figure, the oil continues to flow through a coarse oil filter 4 and an oil cooler 5 , to which a pressure relief valve 6 is connected in parallel, to consumers (not shown) or lubrication points 7 . The pressure relief valve 6 serves the oil flow at high pressure, such as. B. on cold start, not to supply the oil cooler 5 , as this could otherwise be damaged. Instead, the oil is then passed through the pressure relief valve 6 . After passing the lubrication points 7 , the oil returns to the oil pan 1 .

Herrscht z. B. vor der ersten Schmierstelle 7 ein be­ stimmter Öldruck, so wird mittels einer Steuerleitung 8 das Abregelventil 3 in seine zweite Stellung ge­ schaltet. Durch diese Ansteuerung des Abregelventils 3 ist gewährleistet, daß beim Verbraucher 7 ständig ein ausreichender Öldruck vorhanden ist und somit der Hauptölkreislauf nicht beeinträchtigt wird. Z. B. before the first lubrication point 7 a certain oil pressure, the control valve 3 is switched to its second position by means of a control line 8 . This control of the regulating valve 3 ensures that there is always sufficient oil pressure at the consumer 7 and thus the main oil circuit is not impaired.

Das von der Ölpumpe 2 geförderte Öl gelangt nun-teil­ weise in einen Abregelkreislauf 9, welcher einen Zy­ klon 10 und eine Zentrifuge 11 enthält. Die Zentrifuge 11 ist vorteilhafterweise auf einen Lebensdauerbetrieb ausgelegt.The oil pumped by the oil pump 2 now passes partially into a regulating circuit 9 , which contains a cyclone 10 and a centrifuge 11 . The centrifuge 11 is advantageously designed for service life.

Der Ölstrom im Abregelkreislauf wird zuerst im Zyklon 10 vorgereinigt. Das vorgereinigte Öl wird aus dem Zy­ klon 10 direkt der Ölwanne 1 zugeführt, wodurch es schnellstmöglich wieder dem Ölkreislauf zur Verfügung steht. Die vom Zyklon 10 durch Schmutzkonzentration abgeschiedenen Partikel werden zusammen mit dem ver­ schmutzten Öl in die Zentrifuge 11 geleitet, in wel­ cher Schmutzpartikel, insbesondere kleinere und leich­ tere Partikel abgeschieden und gespeichert werden. Das von der Zentrifuge 11 gereinigte Öl wird ebenfalls wieder der Ölwanne 1 zugeführt.The oil flow in the regulating circuit is first pre-cleaned in cyclone 10 . The pre-cleaned oil is fed from the Zy clone 10 directly to the oil pan 1 , making it available to the oil circuit again as quickly as possible. The separated by the cyclone 10 by dirt concentration particles are passed together with the contaminated oil ver in the centrifuge 11 , in which cher dirt particles, in particular smaller and lighter particles are separated and stored. The oil cleaned by the centrifuge 11 is also returned to the oil pan 1 .

Die Volumenstromverhältnisse zwischen dem Zyklon 10 und der Zentrifuge 11 müssen dahingehend aufeinander abgestimmt werden, daß sowohl der Zyklon 10 als auch die Zentrifuge 11 in allen Betriebsbereichen eine bestmögliche Trennkenngröße erreichen, wenn der Abre­ gelkreislauf anspricht.The volume flow ratios between the cyclone 10 and the centrifuge 11 must be coordinated with one another in such a way that both the cyclone 10 and the centrifuge 11 achieve the best possible separation parameter in all operating areas if the shutdown circuit responds.

Claims (4)

1. Ölkreislauf in einem Verbrennungsmotor, insbesonde­ re in einem Kraftfahrzeug, wobei das Öl in einem Hauptkreislauf mit einem Ölfilter und in einem Ab­ regelkreis geführt ist, dadurch gekennzeichnet, daß in dem Abregelkreislauf (9) in einem Zyklon (10) der Schmutzgehalt im Öl aufkonzentriert wird, das gereinigte Öl wieder dem Kreislauf zugeführt und das im Zyklon aufkonzentrierte Öl einer Zentrifuge (11) zugeführt wird, in der Schmutz- und Rußparti­ kel abgeschieden und gespeichert werden, wonach das in der Zentrifuge (11) gereinigte Öl ebenfalls wie­ der dem Kreislauf zugeführt wird.1. Oil circuit in an internal combustion engine, in particular re in a motor vehicle, the oil being guided in a main circuit with an oil filter and in a control circuit, characterized in that in the control circuit ( 9 ) in a cyclone ( 10 ) the dirt content in the oil is concentrated, the cleaned oil is returned to the circuit and the concentrated oil in the cyclone is fed to a centrifuge ( 11 ), in which dirt and soot particles are separated and stored, after which the oil in the centrifuge ( 11 ) is also cleaned like that Circuit is supplied. 2. Ölkreislauf nach Anspruch 1, dadurch gekennzeichnet, daß gereinigtes Öl in eine Ölwanne (1) des Kreislaufes zugegeben wird.2. Oil circuit according to claim 1, characterized in that cleaned oil is added to an oil pan ( 1 ) of the circuit. 3. Ölkreislauf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Steuergröße für ein Abregelventil (3), das die Aufteilung für den Hauptkreislauf und den Abregel­ kreislauf (9) steuert, der Öldruck vor den Schmier­ stellen (7) ist.3. Oil circuit according to claim 1 or 2, characterized in that the control variable for a regulating valve ( 3 ) which controls the distribution for the main circuit and the regulating circuit ( 9 ), the oil pressure before the lubrication ( 7 ). 4. Ölkreislauf nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Zentrifuge (11) bezüglich Partikelabscheidung auf einen Lebensdauerbetrieb ausgelegt ist.4. Oil circuit according to one of claims 1 to 3, characterized in that the centrifuge ( 11 ) is designed with regard to particle separation for a lifetime operation.
DE1996121936 1996-05-31 1996-05-31 Oil circuit in an internal combustion engine Expired - Fee Related DE19621936C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1996121936 DE19621936C2 (en) 1996-05-31 1996-05-31 Oil circuit in an internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996121936 DE19621936C2 (en) 1996-05-31 1996-05-31 Oil circuit in an internal combustion engine

Publications (2)

Publication Number Publication Date
DE19621936A1 true DE19621936A1 (en) 1997-12-04
DE19621936C2 DE19621936C2 (en) 1999-04-01

Family

ID=7795828

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1996121936 Expired - Fee Related DE19621936C2 (en) 1996-05-31 1996-05-31 Oil circuit in an internal combustion engine

Country Status (1)

Country Link
DE (1) DE19621936C2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10110382A1 (en) * 2001-03-03 2002-09-12 Mahle Filtersysteme Gmbh Lubricating oil circuit for internal combustion engine of motor vehicle has centrifuge connected to pressure line upstream of oil filter on inlet side and to oil tank on outlet side
DE10148405A1 (en) * 2001-10-01 2003-04-10 Otto Altmann Double-walled cyclone for fluids purefication flows fluid spirally down to outlet past walls slotted to transfer contained impurities to outer walled volume and separate collectors.
GB2418988A (en) * 2004-10-06 2006-04-12 Ford Global Tech Llc A soot management system for an engine
DE102006053213A1 (en) * 2006-11-11 2008-05-15 Mahle International Gmbh Lubricating oil filter for internal combustion engine, has housing with centrifuges-supply and discharge channel that communicates with openings over outside of centrifuge part of filter containing centrifuge over area of housing
US7708808B1 (en) 2007-06-01 2010-05-04 Fisher-Klosterman, Inc. Cyclone separator with rotating collection chamber
CN103611364A (en) * 2013-11-15 2014-03-05 昆山威胜达环保设备有限公司 Novel vibratory oil filtering machine
CN107694213A (en) * 2017-11-13 2018-02-16 陈国平 Automobile gearbox oil filter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007001989U1 (en) * 2007-02-10 2008-06-19 Hengst Gmbh & Co.Kg Lubricating oil circuit of an internal combustion engine and oil module for it

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606578A1 (en) * 1993-01-14 1994-07-20 Audi Ag Lubrication circuit of an internal combustion engine
EP0699826A1 (en) * 1994-08-30 1996-03-06 FILTERWERK MANN & HUMMEL GMBH Fluid circuit with a filter in the main flow
DE4438679A1 (en) * 1994-10-29 1996-05-02 Audi Ag Lube oil system of an internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0606578A1 (en) * 1993-01-14 1994-07-20 Audi Ag Lubrication circuit of an internal combustion engine
EP0699826A1 (en) * 1994-08-30 1996-03-06 FILTERWERK MANN & HUMMEL GMBH Fluid circuit with a filter in the main flow
DE4438679A1 (en) * 1994-10-29 1996-05-02 Audi Ag Lube oil system of an internal combustion engine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DE-Z.: Kraftfahrzeugtechnik, 7/1970, S. 215 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10110382A1 (en) * 2001-03-03 2002-09-12 Mahle Filtersysteme Gmbh Lubricating oil circuit for internal combustion engine of motor vehicle has centrifuge connected to pressure line upstream of oil filter on inlet side and to oil tank on outlet side
DE10148405A1 (en) * 2001-10-01 2003-04-10 Otto Altmann Double-walled cyclone for fluids purefication flows fluid spirally down to outlet past walls slotted to transfer contained impurities to outer walled volume and separate collectors.
GB2418988A (en) * 2004-10-06 2006-04-12 Ford Global Tech Llc A soot management system for an engine
GB2418988B (en) * 2004-10-06 2008-09-17 Ford Global Tech Llc A soot management system for an engine
DE102006053213A1 (en) * 2006-11-11 2008-05-15 Mahle International Gmbh Lubricating oil filter for internal combustion engine, has housing with centrifuges-supply and discharge channel that communicates with openings over outside of centrifuge part of filter containing centrifuge over area of housing
US7708808B1 (en) 2007-06-01 2010-05-04 Fisher-Klosterman, Inc. Cyclone separator with rotating collection chamber
CN103611364A (en) * 2013-11-15 2014-03-05 昆山威胜达环保设备有限公司 Novel vibratory oil filtering machine
CN103611364B (en) * 2013-11-15 2015-09-02 昆山威胜达环保设备有限公司 A kind of novel vibrating oil filter
CN107694213A (en) * 2017-11-13 2018-02-16 陈国平 Automobile gearbox oil filter

Also Published As

Publication number Publication date
DE19621936C2 (en) 1999-04-01

Similar Documents

Publication Publication Date Title
EP0009564B1 (en) Lubricating circuit for an internal-combustion engine
EP1030050B1 (en) Exhaust gas recirculation system
DE1807639A1 (en) Engine lubrication and cooling system
DE19544533A1 (en) Dry=sump lubrication system for four=stroke engine
EP0675266A1 (en) Method and device for lubricating the bearings of a turbocharger
DE19609800C1 (en) Injection system for internal combustion engine supplying e.g. pure diesel or water emulsion
DE10124476B4 (en) Oil supply device for a large diesel engine
DE19621936A1 (en) Combustion engine oil circuit with inbuilt filter
DE102006017924A1 (en) Internal-combustion engine`s dry sump lubrication system for use in motor vehicle, has lubricating oil filter arranged on pressure side of suction pump preferably in lubricating oil tank
DE4438679A1 (en) Lube oil system of an internal combustion engine
DE2249818A1 (en) COOLING SYSTEM FOR THE LUBRICATING OIL CIRCULATING IN COMBUSTION ENGINES
DE102012202405A1 (en) Motor vehicle e.g. road vehicle, has oil return part reconducting separated oil to crank case of engine, and conveying device driving fluid i.e. air, different from blow-by-gas and used for driving blow-by-gas in crank case device
DE2703519A1 (en) Cylinder head for IC engine - has lubricant chamber in camshaft bearing and connected to cam lubrication channels
DE3742455A1 (en) Lubricant circuit of an engine having a lubricant filter
EP2525055A2 (en) Combustion engine
DE10312902A1 (en) System for regeneration of lubricating oil in internal combustion engines heats lubricating oil to remove volatile impurities by taking into account operating parameters and/or condition of oil
WO2008043755A1 (en) Fuel supply system
EP1656980B1 (en) Arrangement for processing the engine oil in a motor vehicle
DE19526142A1 (en) Fuel delivery device
DE3620959C1 (en) Suction pipe for a lubricant pump
EP3914812B1 (en) Cylinder head
DE9103500U1 (en) Device for saving energy and reducing exhaust emissions from combustion engines and similar combustion plants
DE112004000884T5 (en) Universal filter base and motors that use them
DE3135813A1 (en) Filtration appliance for diesel engine lubrication oil
DE3827570A1 (en) DEVICE FOR CLEANING LUBRICANT OIL

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8127 New person/name/address of the applicant

Owner name: DAIMLER-BENZ AKTIENGESELLSCHAFT, 70567 STUTTGART,

8127 New person/name/address of the applicant

Owner name: FILTERWERK MANN & HUMMEL GMBH, 71638 LUDWIGSBURG,

D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MANN + HUMMEL GMBH, 71638 LUDWIGSBURG, DE

8339 Ceased/non-payment of the annual fee