Patent · US Expired

Method and system for modifying a used hydrocarbon fluid to create a cylinder oil

US7316992B2 · kind B2 · utility

4Cited by
4References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 14, 2004
Grant dateJan 8, 2008
Priority date
Expiry dateSep 3, 2025

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC10N2040/252
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A method and system of creating a cylinder oil having a target TBN ranging from 40 to 70 for use in a two-stroke en line. Fresh system oil having a TBN less than 10 is provided. The fresh system oil is used in the two-stroke engine to product partially used system oil. An initial fluid containing at least some partially used system oil is provided. A first TBN of the initial fluid is determined. Cylinder oil having the target TBN is created by blending the initial fluid having the first TBN with at least one suited additive. The cylinder oil is provided to the two-stroke engine.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.