Development of an Engine Head Friction Tester Lubrizol Corporation: Lubrizol International Laboratories Asia Pacific

Format:

Conference/Event

Author/Creator:

Nakagawa, Isao, author.

Conference Name:

International Fuels and Lubricants Meeting and Exposition (1999-10-25 : Toronto, Canada)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1999

Summary:

An engine head friction tester that has excellent repeatability, can differentiate between oils with good and poor friction properties and can also obtain steady sequential data for many hours has been developed. It was formerly thought that data variations were inevitable in this type of tester. However, analysis of specific factors of the variations showed that the main factors involved in the variation were the temperature gradient between the head and the torquemeter and the temperature change resulting from the aforementioned temperature gradient. Next, by almost completely separating the head side from the torquemeter side thermally and by taking measures to maintain both sides at their respective constant temperatures, along with other countermeasures, a tester having the special properties indicated above was developed. This paper describes some test results demonstrating the advantages listed above

Notes:

Vendor supplied data

Publisher Number:

1999-01-3671

Access Restriction:

Restricted for use by site license