US2013157910A1PendingUtilityA1

Diesel engine oils

45
Assignee: Li yue-rongPriority: Dec 16, 2011Filed: Dec 16, 2011Published: Jun 20, 2013
Est. expiryDec 16, 2031(~5.4 yrs left)· nominal 20-yr term from priority
Inventors:Yue LiAlexander B. Boffa
C10M 2207/26C10M 2203/1006C10M 163/00C10N 2030/10C10M 2215/064C10N 2030/12C10M 2207/026C10N 2030/52C10M 2217/043C10M 2215/28C10N 2040/24C10M 2207/262C10M 2215/086C10M 2227/066
45
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

A lubricating oil additive composition comprising a first carboxylate detergent having a TBN of the actives of greater than about 200 to about 400; a second carboxylate detergent having a TBN of the actives of greater than about 60 to about 200; and at least one polyalkenyl succinimide

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A lubricating oil additive composition comprising
 a. a first carboxylate detergent having a TBN of the actives of greater than about 200 to about 400;   b. a second carboxylate detergent having a TBN of the actives of greater than about 60 to about 200; and   c. at least one polyalkenyl succinimide.   
     
     
         2 . The lubricating oil additive composition of  claim 1  wherein the polyalkenyl succinimide is a polyisobutenyl succinimide 
     
     
         3 . A lubricating oil composition comprising
 a. a major amount of oil of lubricating viscosity;   b. a first carboxylate detergent having a TBN of the actives of greater than about 200 to about 400;   c. a second carboxylate detergent having a TBN of the actives of greater than about 60 to about 200; and   d. at least one polyalkenyl succinimide.   
     
     
         4 . The lubricating oil composition of  claim 3  wherein the lubricating oil composition is used as a railroad engine oil. 
     
     
         5 . A method for operating a diesel locomotive engine comprising lubricating said diesel locomotive engine with a lubricating oil composition comprising
 a. a major amount of an oil of lubricating viscosity; and   b. a first carboxylate detergent having a TBN of the actives of greater than about 200 to about 400;   c. a second carboxylate detergent having a TBN of the actives of greater than about 60 to about 200; and   d. at least one polyalkenyl succinimide.   
     
     
         6 . A method for operating an inland marine engine comprising lubricating said inland marine engine with a lubricating oil composition comprising
 a. a major amount of an oil of lubricating viscosity; and   b. a first carboxylate detergent having a TBN of the actives of greater than about 200 to about 400;   c. a second carboxylate detergent having a TBN of the actives of greater than about 60 to about 200; and   d. at least one polyalkenyl succinimide.   
     
     
         7 . A method of improving TBN retention comprising lubricating an engine with a lubricating oil composition having
 a. a major amount of an oil of lubricating viscosity;   b. a first carboxylate detergent having a TBN of the actives of greater than about 200 to about 400;   c. a second carboxylate detergent having a TBN of the actives of greater than about 60 to about 200; and   d. at least one polyalkenyl succinimide.

Join the waitlist — get patent alerts

Track US2013157910A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.