Global Patent Index - EP 2409005 B1

EP 2409005 B1 20180815 - METHOD AND APPARATUS FOR OILING ROTATING OR OSCILLATING COMPONENTS

Title (en)

METHOD AND APPARATUS FOR OILING ROTATING OR OSCILLATING COMPONENTS

Title (de)

VERFAHREN UND VORRICHTUNG ZUR ÖLSCHMIERUNG VON ROTIERENDEN ODER OSZILLIERENDEN BAUTEILEN

Title (fr)

PROCÉDÉ ET DISPOSITIF DE LUBRIFICATION À L'HUILE DE COMPOSANTS ROTATIFS OU OSCILLANTS

Publication

EP 2409005 B1 20180815 (DE)

Application

EP 10713597 A 20100319

Priority

  • EP 2010053643 W 20100319
  • DE 102009013943 A 20090319

Abstract (en)

[origin: WO2010106179A1] A method for heating a lubricating system. At low temperatures, lubricating oil has a high viscosity which requires more energy to be overcome than at higher temperatures. The novel method speeds up the heating behavior and thereby reduces the energy requirement of lubricating systems. The invention relates to a method for heating lubricating systems (16), in particular for combustion engines (30) or transmissions, preferably automatic transmissions, comprising at least one oil suction tube (2) which is disposed in an oil sump (1) and an oil bypass line (23) bypassing the oil return lines (19). A bypass valve (17) is disposed in the oil bypass line (23). The oil bypass line (23) and/or at least one of the oil return lines (19) is connected to the suction line of an oil pump (3) and the pressure line of a lubricating system (16) and, during use, runs in a combustion engine (30), preferably through at least one cylinder head (12), a cylinder block (15), or a turbocharger (24), and during use in a transmission it preferably runs through at least one heat exchanger (8) of the combustion engine (30) and/or through at least one electrical heating element. When a defined limit temperature is no longer met and a defined minimum pressure of the lubricating oil in the pressure line of the lubricating system (16) is exceeded, the bypass valve (17) is opened at least partially, so that a partial flow of the lubricating oil does not flow through the oil sump (1) during the warm-up phase of the lubricating system (16). The lubricating oil flowing through the oil bypass line (23) and/or at least one of the oil return lines (19) is heated by a heat exchanger (8). The method is particularly suited for quickly heating combustion engines and transmissions in motor vehicles.

IPC 8 full level

F01M 5/00 (2006.01); F01M 5/02 (2006.01)

CPC (source: EP US)

F01M 5/001 (2013.01 - EP US); F01M 5/002 (2013.01 - EP US); F01M 5/005 (2013.01 - EP US); F01M 5/02 (2013.01 - EP US); F01M 1/02 (2013.01 - US); F01M 11/0004 (2013.01 - US); F01M 11/02 (2013.01 - US); F02B 2075/025 (2013.01 - US); F02B 2075/027 (2013.01 - US)

Citation (examination)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DOCDB simple family (publication)

DE 102009013943 A1 20100923; AU 2010224799 A1 20110929; AU 2010224799 B2 20141002; CN 102356217 A 20120215; CN 102356217 B 20131225; EP 2409005 A1 20120125; EP 2409005 B1 20180815; JP 2012520965 A 20120910; JP 5656970 B2 20150121; US 2012006622 A1 20120112; US 8978613 B2 20150317; WO 2010106179 A1 20100923

DOCDB simple family (application)

DE 102009013943 A 20090319; AU 2010224799 A 20100319; CN 201080012734 A 20100319; EP 10713597 A 20100319; EP 2010053643 W 20100319; JP 2012500273 A 20100319; US 201013256611 A 20100319