CYLINDER LUBRICATING OIL COMPOSITION FOR CROSSHEAD-TYPE DIESEL ENGINE

WIPO Patent Application WO/2014/057683

A1

The present invention provides a cylinder lubricating oil composition that is for a crosshead-type diesel engine and that has a low occurrence of deposits even when using a group II or group III base oil, wherein the composition results from combining (D) a metal-based cleaning agent and (E) an ashless dispersant with a base oil containing: (A) a mineral-oil-based lubricating base oil of which at least 90 mass% is saturated hydrocarbons, there is no greater than 0.03 mass% of sulfur by the amount of the element, the viscosity index is at least 80, and the kinematic viscosity at 100°C is 10-20 mm2/s; (B) at least 3 mass% in relation to the entire base oil of an extract containing at least 15% of aromatic hydrocarbon compounds (%CA) according to the composition analysis method stipulated in ASTM D2140 and arising as a byproduct of solvent refining during the process of producing the mineral-oil-based lubricating base oil; and (C) a polymer-compound-based synthetic oil that is the polymer of an olefin having at least 4 carbon atoms or is the hydride of same, and that has a kinematic viscosity at 100°C of 20-400 mm2/s.

MORITA YOUKO (JP)
TAGAWA KAZUO (JP)

PCT/JP2013/006060

April 17, 2014

October 10, 2013

Click for automatic bibliography generation  

JX NIPPON OIL & ENERGY CORP (JP)

C10M111/04; C10M101/02; C10M107/08; C10M107/10; C10N20/00; C10N20/02; C10N30/04; C10N30/08; C10N40/25

JP2010519376A	2010-06-03
JPS4740526A
JPS61200199A	1986-09-04
JP2010229314A	2010-10-14
JPH1180434A	1999-03-26

SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)

View/Download PDF      PDF Help

Previous Patent: COMMUNICATION DEVICE USED IN WIRELESS NETWORK

Next Patent: LADDER COMPOUND, AND ORGANIC ELECTROLUMINESCENT ELEMENT USING SAME