Title:
粘度制御方法
Document Type and Number:
Japanese Patent JP5004237
Kind Code:
B2
Abstract:
This invention relates to a method of lubricating an internal combustion engine comprising at least one of a crankcase, a gear and a wet-clutch, said method comprising supplying to said crankcase, gear and wet-clutch a lubricating composition comprising: (a) an oil of lubricating viscosity; and (b) a viscosity modifier with a number average molecular weight from 1000 to 75,000, wherein the lubricating composition has a SAE viscosity grade from XW-Y, wherein X is from 0 to 20 and Y is from 20 to 50; and wherein the lubricating composition has a phosphorus content from a metal hydrocarbyl dithiophosphate of 0.12 wt % or less.
Inventors:
Breon, Louis Dee.
Patel, Jayrum Dee.
Sam Buochino, Roy
Wilkes, Mark F.
Griffith, Simon
Price, david
Gurgan, Michael Pee.
Patel, Jayrum Dee.
Sam Buochino, Roy
Wilkes, Mark F.
Griffith, Simon
Price, david
Gurgan, Michael Pee.
Application Number:
JP2007548277A
Publication Date:
August 22, 2012
Filing Date:
December 13, 2005
Export Citation:
Assignee:
THE LUBRIZOL CORPORATION
International Classes:
C10M161/00; C10M137/10; C10M143/00; C10M145/10; C10M145/14; C10N20/02; C10N20/04; C10N30/02; C10N40/04; C10N40/25
Domestic Patent References:
| JP9512584A | ||||
| JP4282054A |
Foreign References:
| US20030013623 |
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita