DE3644356A1 - Lubrication and cooling of the turbine shaft of exhaust turbochargers - Google Patents

Lubrication and cooling of the turbine shaft of exhaust turbochargers

Info

Publication number
DE3644356A1
DE3644356A1 DE19863644356 DE3644356A DE3644356A1 DE 3644356 A1 DE3644356 A1 DE 3644356A1 DE 19863644356 DE19863644356 DE 19863644356 DE 3644356 A DE3644356 A DE 3644356A DE 3644356 A1 DE3644356 A1 DE 3644356A1
Authority
DE
Germany
Prior art keywords
cooling
lubrication
turbine shaft
tank
fuel
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Withdrawn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
DE19863644356
Other languages
German (de)
Inventor
Ludwig Elsbett
Guenter Elsbett
Klaus Elsbett
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19863644356 priority Critical patent/DE3644356A1/en
Publication of DE3644356A1 publication Critical patent/DE3644356A1/en
Withdrawn legal-status Critical Current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
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/04—Use of fuel as lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/18—Lubricating arrangements
    • 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
    • F01M5/02—Conditioning lubricant for aiding engine starting, e.g. heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/14—Lubrication of pumps; Safety measures therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/12—Cooling of plants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Supercharger (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

The existing defect with exhaust turbocharged engines of producing high smoke and soot values when the engine oil is cold can be prevented in that the turbocharger shaft is lubricated and cooled using diesel oil instead of engine oil.

Description

Die Schmierung von Abgasturboladern mit dem zähfließenden Motoröl verhindert die notwendige Turbolader-Drehzahl bei kaltem Motor. Die Vermeidung von Rauchstößen bei der Be­ schleunigung von Dieselmotoren mit Abgasturboaufladung ist besonders mit Bezug auf fast alle Emissionen eine wichtige technische Aufgabe. Dabei hat sich gezeigt, daß die Reibung in der Lagerung der Turbinenwelle eine umso größere Rolle spielt, je kälter die Außentemperatur und je zäher das Schmiermittel ist. Der Übergang vom ölgeschmierten Gleitla­ ger zum Kugellager oder gar zur Luftlagerung der Turbinen­ welle konnte aus technischen Gründen bisher nicht durchge­ führt werden, so daß schon eine Verminderung der Schmiermit­ telreibung einen erheblichen Fortschritt bedeuten würde. Von diesem Schmiermittel hängt zur Zeit nicht nur der Rauch­ stoß beim Beschleunigen eines Motors, sondern ebenso die NOx-, CH- und CO-Emission beim Lastwechsel ab.The lubrication of exhaust gas turbochargers with the viscous Engine oil prevents the necessary turbocharger speed cold engine. Avoiding smoke bursts when loading acceleration of diesel engines with exhaust gas turbocharging an important one, especially with regard to almost all emissions technical task. It has been shown that the friction an even greater role in the bearing of the turbine shaft plays, the colder the outside temperature and the tougher that Is lubricant. The transition from oil-lubricated gliding fluid ger to the ball bearing or even the air bearing of the turbines For technical reasons, wave has not been able to go through leads, so that a reduction in lubricant friction would mean significant progress. It is not only smoke that is currently dependent on this lubricant bumps when accelerating an engine, but also the NOx, CH and CO emissions from load changes.

Aus diesem Grunde wird nun die ständige oder zeitweise Ein­ schaltung des Turbinenschmierkreislaufes in den Kraftstoff­ kreislauf vorgeschlagen.For this reason, the permanent or temporary one switching the turbine lubrication circuit into the fuel cycle suggested.

Bekanntlich wird der Dieselkraftstoff aus dem Tank in die Einspritzpumpe mit erhöhtem Überschuß gefördert, um zu ver­ meiden, daß innerhalb der Einspritzpumpe ein Wärmestau des Kraftstoffs entsteht. Diese Überschußmenge, die also für die Einspritzung nicht gebraucht wird und zum Tank zurück­ läuft, wird nun erfindungsgemäß über die Gleitlager des Turboladers geleitet. Die Viskosität des Dieselkraftstoffs ist besonders im kalten Zustand so gering, daß die Turbinen­ welle erheblich schneller beschleunigt werden kann. Eine Umschaltung auf das Schmieröl des Motors wäre mit Hilfe eines Thermostats bei hoher Schmieröltemperatur möglich, ist erfindungsgemäß aber nur für den Fall vorgesehen, daß die Qualität der Gleitlagerung bei heißem Motor auf die Um­ schaltung auf Schmieröl angewiesen ist.As is well known, the diesel fuel from the tank into the Injection pump promoted with increased excess to ver avoid that a heat build-up inside the injection pump Fuel arises. This excess amount, so for the injection is not needed and back to the tank runs, is now according to the slide bearing of the Turbocharger directed. The viscosity of the diesel fuel is so low, especially when cold, that the turbines wave can be accelerated much faster. A Switching to the engine's lubricating oil would be helpful a thermostat possible at high lubricating oil temperature,  is provided according to the invention only in the event that the quality of the plain bearing when the engine is hot on the order circuit relies on lubricating oil.

Bei Alternativkraftstoffen, wie z. B. schwer zündbaren Alkoholen und schwer verdampfbaren Pflanzenölen, ergibt sich die Forderung, daß über einen Zusatztank der Diesel­ kraftstoff enthält, für einen guten Start des Motors ge­ sorgt werden muß. Diesen Zusatztank in den wärmeisolierten Motorraum mitaufzunehmen, bringt die Möglichkeit, auch an sehr kalten Tagen gut fließfähiges Dieselöl für die Schmie­ rung der Turbinenwelle zur Verfügung zu haben. Das hat den Vorteil, daß die lästigen und umweltbelastenden Rauchstöße gleich beim Anfahren des kalten Motors vermieden werden.With alternative fuels, such as. B. difficult to ignite Alcohols and vegetable oils that are difficult to evaporate there is a requirement that an additional tank of diesel contains fuel, for a good start of the engine must be taken care of. This additional tank in the heat insulated Including the engine compartment also offers the opportunity very cold days good flowable diesel oil for the Schmie of the turbine shaft. That has the Advantage that the annoying and polluting smoke bursts be avoided when starting the cold engine.

BildbeschreibungImage description

Fig. 1 zeigt das Schaltschema der Turbinenlagerschmierung mit Kraftstoff wobei (1) den Kraftstofftank (2) die Kraft­ stofförderpumpe, (3) die Einspritzpumpe, (4) die Leitung zur Turbine, (5) die Lagerung der Turbinenwelle und (6) die Rücklaufleitung zum Tank darstellt. Das Überdruckventil (7), das den Vordruck für die Einspritzpumpenlemente ge­ währleistet, kann als Zumeßventil für die Turbinenlager­ schmierung dienen. In diesem Falle ist eine Bypassleitung (8) zur Rücklaufleitung (6) vorgesehen. Fig. 1 shows the circuit diagram of the turbine bearing lubrication with fuel where ( 1 ) the fuel tank ( 2 ) the fuel pump, ( 3 ) the injection pump, ( 4 ) the line to the turbine, ( 5 ) the bearing of the turbine shaft and ( 6 ) the return line to the tank. The pressure relief valve ( 7 ), which ensures the admission pressure for the injection pump elements, can serve as a metering valve for the turbine bearing lubrication. In this case, a bypass line ( 8 ) to the return line ( 6 ) is provided.

In Fig. 2 ist der Zusatztank (1) mit der Förderpumpe (2) an die Leitungen (3) und (4) angeschlossen. Die Leitung (3) führt das Dieselöl dem Turbinenlager (5) zu. Über die Lei­ tung (6) fließt es wieder zum Tank (1) zurück. Die Verklei­ dung (7) hält den Raum für Tank (1), Einspritzpumpe (8) und Motor (9) so warm, daß das Dieselöl im Tank (1) nicht er­ starrt. Die Einspritzpumpe (8) wird entweder über die Lei­ tung (4) oder über die Leitungen (10) und (11) und dem Tank (12) mit Kraftstoff versorgt. Bei besonders niedrigen Aus­ sentemperaturen werden der Zusatztank und die Abgasturbine durch einen bei Motorstillstand in Gang gesetzten Brenner (13), der innerhalb der Motorverkleidung angeordnet ist, warmgehalten.In Fig. 2, the additional tank ( 1 ) with the feed pump ( 2 ) is connected to the lines ( 3 ) and ( 4 ). The line ( 3 ) leads the diesel oil to the turbine bearing ( 5 ). It flows back to the tank ( 1 ) via the line ( 6 ). The fairing ( 7 ) keeps the space for the tank ( 1 ), injection pump ( 8 ) and engine ( 9 ) so warm that the diesel oil in the tank ( 1 ) does not stare at it. The injection pump ( 8 ) is supplied with fuel either via the line ( 4 ) or via the lines ( 10 ) and ( 11 ) and the tank ( 12 ). At particularly low temperatures, the auxiliary tank and the exhaust gas turbine are kept warm by a burner ( 13 ) which is started when the engine is stopped and is arranged within the engine cowling.

Claims (6)

1. Schmierung und Kühlung für einen Abgasturbolader dadurch gekennzeichnet daß der Reibwiderstand der Turbinenwelle durch Verwendung von Dieselkraftstoff anstelle von Schmieröl herabgesetzt wird.1. Lubrication and cooling for an exhaust gas turbocharger characterized in that the frictional resistance of the turbine shaft by using diesel fuel instead of Lubricating oil is reduced. 2. Anspruch 2 nach Anspruch 1, dadurch gekennzeichnet, daß die Kühlung und Schmierung der Turbinenwelle in den Kraftstoffkreislauf eingeschaltet wird.2. Claim 2 according to claim 1, characterized in that the cooling and lubrication of the turbine shaft in the Fuel circuit is switched on. 3. Anspruch 3 nach Anspruch 1, dadurch gekennzeichnet, daß die Schmierung und Kühlung der Turbinenwelle nur bei kaltem Motoröl in den Kraftstoffkreislauf eingeschaltet wird.3. Claim 3 according to claim 1, characterized in that the lubrication and cooling of the turbine shaft only cold engine oil switched on in the fuel circuit becomes. 4. Anspruch 4 nach Anspruch 1, dadurch gekennzeichnet, daß ein zusätzlicher Kraftstofftank vorgesehen ist, von dem aus die Schmierung und Kühlung der Turbinenwelle versorgt wird.4. Claim 4 according to claim 1, characterized in that an additional fuel tank is provided, of which from the lubrication and cooling of the turbine shaft becomes. 5. Anspruch 5 nach Anspruch 1 und 4, dadurch gekennzeichnet, daß der Zusatztank im Motorraum untergebracht ist, der durch eine Wärmeverkleidung vor Auskühlung geschützt ist.5. Claim 5 according to claim 1 and 4, characterized in that the additional tank is housed in the engine compartment, the protected from cooling by a thermal cladding is. 6. Anspruch 6 nach Anspruch 1, 4 und 5, dadurch gekennzeich­ net, daß der Zusatztank und die Abgasturbine durch einen Brenner warmgehalten wird.6. Claim 6 according to claim 1, 4 and 5, characterized net that the auxiliary tank and the exhaust gas turbine by one Burner is kept warm.
DE19863644356 1986-12-24 1986-12-24 Lubrication and cooling of the turbine shaft of exhaust turbochargers Withdrawn DE3644356A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19863644356 DE3644356A1 (en) 1986-12-24 1986-12-24 Lubrication and cooling of the turbine shaft of exhaust turbochargers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863644356 DE3644356A1 (en) 1986-12-24 1986-12-24 Lubrication and cooling of the turbine shaft of exhaust turbochargers

Publications (1)

Publication Number Publication Date
DE3644356A1 true DE3644356A1 (en) 1988-07-07

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Application Number Title Priority Date Filing Date
DE19863644356 Withdrawn DE3644356A1 (en) 1986-12-24 1986-12-24 Lubrication and cooling of the turbine shaft of exhaust turbochargers

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DE (1) DE3644356A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020880A1 (en) * 1997-10-23 1999-04-29 Carl Fredriksson Device, method and application in connection with a turbomachine and pumping and lubricating arrangement in connection with such a machine
US6296440B1 (en) 1997-11-10 2001-10-02 Sterling Fluid Systems (Germany) Gmbh Side channel centrifugal pump
US6745568B1 (en) * 2003-03-27 2004-06-08 Richard K. Squires Turbo system and method of installing
US7784436B2 (en) * 2004-06-10 2010-08-31 Achates Power, Inc. Two-cycle, opposed-piston internal combustion engine
US8015810B2 (en) * 2007-05-14 2011-09-13 GM Global Technology Operations LLC Control of turbocharger lubrication for hybrid electric vehicle
WO2017081123A1 (en) * 2015-11-13 2017-05-18 Total Marketing Services Method for separate lubrication of a drive system for a motor vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196016B (en) * 1962-11-13 1965-07-01 Bmw Triebwerkbau Ges M B H Fuel tank system for internal combustion engines, especially for gas turbines
DE1246320B (en) * 1964-06-13 1967-08-03 M A N Turbo Ges Mit Beschraenk Fuel tank system for internal combustion engines, in particular for gas turbines
DE2733377A1 (en) * 1976-07-28 1978-02-02 Teledyne Ind LUBRICATION SYSTEM FOR A BEARING ARRANGEMENT IN A TURBINE WITH FUEL SUPPLY
DE3107030A1 (en) * 1981-02-25 1982-09-09 Motorkonsult Lennart Björck AB, 21615 Malmö Turbocharger lubrication device
US4599862A (en) * 1985-02-05 1986-07-15 Bergeron Robert M Turbocharger for two-cycle engines and method of operation thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1196016B (en) * 1962-11-13 1965-07-01 Bmw Triebwerkbau Ges M B H Fuel tank system for internal combustion engines, especially for gas turbines
DE1246320B (en) * 1964-06-13 1967-08-03 M A N Turbo Ges Mit Beschraenk Fuel tank system for internal combustion engines, in particular for gas turbines
DE2733377A1 (en) * 1976-07-28 1978-02-02 Teledyne Ind LUBRICATION SYSTEM FOR A BEARING ARRANGEMENT IN A TURBINE WITH FUEL SUPPLY
DE3107030A1 (en) * 1981-02-25 1982-09-09 Motorkonsult Lennart Björck AB, 21615 Malmö Turbocharger lubrication device
US4599862A (en) * 1985-02-05 1986-07-15 Bergeron Robert M Turbocharger for two-cycle engines and method of operation thereof

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999020880A1 (en) * 1997-10-23 1999-04-29 Carl Fredriksson Device, method and application in connection with a turbomachine and pumping and lubricating arrangement in connection with such a machine
US6327857B1 (en) 1997-10-23 2001-12-11 Carl Fredriksson Device, method and application in connection with a turbomachine and pumping and lubricating arrangement in connection with such a machine
US6296440B1 (en) 1997-11-10 2001-10-02 Sterling Fluid Systems (Germany) Gmbh Side channel centrifugal pump
US6745568B1 (en) * 2003-03-27 2004-06-08 Richard K. Squires Turbo system and method of installing
US7134282B2 (en) * 2003-03-27 2006-11-14 Squires Turbo Systems, Inc. Turbo system and method of installing
US7469539B2 (en) * 2003-03-27 2008-12-30 Squires Turbo System, Inc. Turbo system and method of installing
US7963033B2 (en) 2003-03-27 2011-06-21 Squires Turbo Systems, Inc. Remotely mountable turbo system and method of installing
US7784436B2 (en) * 2004-06-10 2010-08-31 Achates Power, Inc. Two-cycle, opposed-piston internal combustion engine
US8015810B2 (en) * 2007-05-14 2011-09-13 GM Global Technology Operations LLC Control of turbocharger lubrication for hybrid electric vehicle
WO2017081123A1 (en) * 2015-11-13 2017-05-18 Total Marketing Services Method for separate lubrication of a drive system for a motor vehicle
CN108350773A (en) * 2015-11-13 2018-07-31 道达尔销售服务公司 The method individually lubricated for the drive system to motor vehicles

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Legal Events

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8139 Disposal/non-payment of the annual fee