Invention Grant
- Patent Title: Ultra-low sulfur clutch-only transmission fluids
- Patent Title (中): 超低硫离合器传动液
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Application No.: US12372206Application Date: 2009-02-17
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Publication No.: US08703669B2Publication Date: 2014-04-22
- Inventor: Ramnath N. Iyer
- Applicant: Ramnath N. Iyer
- Applicant Address: US VA Richmond
- Assignee: Afton Chemical Corporation
- Current Assignee: Afton Chemical Corporation
- Current Assignee Address: US VA Richmond
- Agency: Luedeka Neely Group, P.C.
- Main IPC: C10M159/24
- IPC: C10M159/24 ; C10M169/04 ; C07F9/02

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
- US20090233822A1 ULTRA-LOW SULFUR CLUTCH-ONLY TRANSMISSION FLUIDS Public/Granted day:2009-09-17
Information query
IPC分类: