Global Patent Index - EP 1076164 A1

EP 1076164 A1 2001-02-14 - Device and method of regulation of oil pressure in a combustion engine

Title (en)

Device and method of regulation of oil pressure in a combustion engine

Title (de)

Einrichtung und Verfahren zur Regelung des Schmieröldruckes einer Brennkraftmaschine

Title (fr)

Dispositif et procédé de régulation de la pression d'huile dans un moteur à combustion

Publication

EP 1076164 A1 (DE)

Application

EP 00115546 A

Priority

DE 19938285 A

Abstract (en)

The unit has a thermostatically-controlled valve (14), whose valve body (16) is pushed closed by a pressure spring (22). The valve body opens an opening (30) as a function of the oil supply quantity and the oil pressure, through which the oil flows back to the suction side (33) of the oil pump (10). The valve has an extension element (26), which opens the valve more slowly with a rise in temperature and more easily in the cold state. An Independent claim is included for a method for using the unit.

Abstract (de)

Die Erfindung betrifft eine Einrichtung und ein Verfahren zur Regelung des Schmieröldruckes einer Brennkraftmaschine mit einem thermostatisch überwachten Öldruckregelventil (14) dessen Ventilköper (16) durch eine Druckfeder (24, 24', 24'') in Schließrichtung beaufschlagt ist, wobei der Ventilkörper (16) in Abhängigkeit von der Ölfördermenge und der Öltemperatur eine Öffnung (30) im Öldruckregelventil (14) freigibt, über die das Öl auf die Saugseite (33) der Ölpumpe (10) zurückströmen kann. Es wird vorgeschlagen, daß der Ventilkörper (16) des thermostatisch geregelten Öldruckregelventils (14), die Öffnung (30) im Öldruckregelventil (14) mit steigender Schmieröltemperatur später freigibt und umgekehrt, so daß der Öldruck im kalten Betriebszustand der Brennkraftmaschine abgesenkt wird. Damit wird eine Absenkung des Öldrucks im kalten Betriebszustand der Brennkraftmaschine erreicht, was zu einer Reduzierung des spezifischen Kraftstoffverbrauchs der Brennkraftmaschine führt, wobei im kalten als auch im warmen Betriebszustand eine ausreichende Schmierung der Verbraucher gewährleistet ist. <IMAGE>

IPC 1-7 (main, further and additional classification)

F01M 1/16

IPC 8 full level (invention and additional information)

F01M 1/16 (2006.01)

CPC (invention and additional information)

F01M 1/16 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 1076164 A1 20010214; EP 1076164 B1 20050112; DE 19938285 A1 20010222

INPADOC legal status


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