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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8939125 B1

PDFFull Text
Date of Patent:
Jan. 27, 2015

Filed:

Dec. 03, 2009

Method of operating an engine using an ashless consumable lubricant

Applicant:

Ewa A. Bardasz, Mentor, OH (US);

Inventor:

Ewa A. Bardasz, Mentor, OH (US);

Assignee:

The Lubrizol Corporation, Wickliffe, OH (US);

Attorney:

Michele M. Tyrpak

Primary Examiner:

Thomas Moulis

Assistant Examiner:

Elizabeth Hadley

Int. Cl.
CPC ...
F02B 3/00 (2006.01); F02B 19/00 (2006.01); C10M 133/56 (2006.01); F01N 3/021 (2006.01); F01N 3/10 (2006.01); F02D 41/00 (2006.01); F02M 25/06 (2006.01); F02M 43/00 (2006.01); F01N 3/08 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
C10M 133/56 (2013.01); F01N 3/021 (2013.01); F01N 3/103 (2013.01); F02D 41/0025 (2013.01); F02M 25/06 (2013.01); F02M 43/00 (2013.01); C10M 2205/0285 (2013.01); C10M 2207/026 (2013.01); C10M 2209/084 (2013.01); C10M 2209/102 (2013.01); C10M 2209/103 (2013.01); C10M 2215/064 (2013.01); C10M 2215/28 (2013.01); C10M 2223/00 (2013.01); C10N 2230/04 (2013.01); C10N 2230/06 (2013.01); C10N 2230/42 (2013.01); C10N 2230/43 (2013.01); C10N 2230/45 (2013.01); C10N 2230/54 (2013.01); C10N 2240/10 (2013.01); C10N 2240/102 (2013.01); C10N 2240/103 (2013.01); F01N 3/0814 (2013.01); F01N 3/2066 (2013.01); Y02T 10/20 (2013.01);
Abstract

The present invention relates to methods of using a low sulfur, low phosphorus, low-ash, zinc free consumable lubricating composition in an internal combustion engine equipped with a pilot ignition system, where the composition comprises: an oil of lubricating viscosity; a high TBN succinimide dispersant and where the lubricant composition overall has a sulfated ash value of up to about 0.2, a phosphorus content of up to about 50 to about 800 ppm and a sulfur content of up to about 0.4 percent by weight.

Find Patent Forward Citations

Bardasz, Ewa. (2015). Method of operating an engine using an ashless consumable lubricant (U.S. Patent No. 8939125). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8939125

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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