Invention Grant
US08546311B2 Method for lubricating a clutch-only automatic transmission component requiring lubrication
失效
用于润滑需要润滑的仅离合器自动变速器部件的方法
- Patent Title: Method for lubricating a clutch-only automatic transmission component requiring lubrication
- Patent Title (中): 用于润滑需要润滑的仅离合器自动变速器部件的方法
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Application No.: US12400853Application Date: 2009-03-10
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Publication No.: US08546311B2Publication Date: 2013-10-01
- Inventor: Joerg Fahl , Holger Gruenleitner , Mario Schenker , Ramnath N. Iyer
- Applicant: Joerg Fahl , Holger Gruenleitner , Mario Schenker , Ramnath N. Iyer
- Applicant Address: DE Wolfsburg DE Ingolstadt
- Assignee: Volkswagen Aktiengesellsschaft,Audi AG
- Current Assignee: Volkswagen Aktiengesellsschaft,Audi AG
- Current Assignee Address: DE Wolfsburg DE Ingolstadt
- Agency: King & Spalding L.L.P.
- Priority: DE102008014290 20080311
- Main IPC: C10M173/02
- IPC: C10M173/02 ; C10M159/12

Abstract:
The present disclosure provides a fluid for lubricating the clutch-only portion of a wet clutch in a dual clutch transmission. The fluid provides high dynamic friction durability and comprises an oil of lubricating viscosity formulated with additive components comprising: i) at least one metal detergent; ii) at least one phosphorus-based wear preventative; iii) a phosphorylated and boronated dispersant different than the at least one phosphorus-based wear preventative; iv) a sulfurized extreme pressure agent; and a ratio between the content (ppm) of the sulfur based on the total weight of the fluid composition and a content (ppm) of phosphorus based on the total weight of the fluid composition ranging from about 2.0 to about 0.5 (ppm/ppm).
Public/Granted literature
- US20090233823A1 METHOD FOR LUBRICATING A CLUTCH-ONLY AUTOMATIC TRANSMISSION COMPONENT REQUIRING LUBRICATION Public/Granted day:2009-09-17
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