Low Width Oil Control Rings for SI Engines MAHLE Brazil Tech Center

Format:

Conference/Event

Author/Creator:

Pereira, Marcos Manoel Valverde, author.

Conference Name:

SAE Brasil 2007 Congress and Exhibit (2007-11-28 : Sao Paulo, Brazil)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

This paper presents 1.5 mm low width Oil Control Rings (2-piece and 3-piece). The current production 2.0 mm Oil Control Rings (OCR) is used as baseline to discuss the benefits of low width design. The width reduction increases the OCR conformability, allowing the reduction of the tangential force (Ft), hence lower friction. For 3-piece OCR, the reduction on Ft leads to lower stress and the improvement of the Ft thermal stability (supported by oven test results).Engine test results are presented to compare the Lube Oil Consumption of 1.5 mm and 2.0 mm OCR, the OCR Ft loss after engine test and the effect of the Ft reduction in the 1.5 mm ring friction. Some challenges for handling and assembling of the narrower, 1.5 mm, OCR are also discussed

Notes:

Vendor supplied data

Publisher Number:

2007-01-2830

Access Restriction:

Restricted for use by site license