The oil control ring of the iron body for internal-combustion engines

Title:

The oil control ring of the iron body for internal-combustion engines

Document Type and Number:

Japanese Patent JP5907955

Kind Code:

B2

Abstract:

An oil control ring for internal combustion engines, formed by a ferrous body having two external contact surfaces where each surface contains first and second extremity edges, two tilted faces where each tilted face starts from the respective second edge, a peripheral transversal section directed at the cylinder wall and an internal circular section directed at the side of the piston, where the projections of contact are directed, so that the respective tilted faces are turned facing the other, symmetrically, in a preferred concretization. The ring allows the maintenance of appropriate levels of contact pressure, even under reduced expanding loadings due to the use of profile that brings reduced contact of the ring with the cylinder interface. Additionally, it brings better dynamic stability and consequent distribution of the contact pressure of the set. It also makes it possible to apply superficial hardening treatments on oil rings with reduced contact surface.

Inventors:

Remi Daniel Labute
Davi Antonio Da Silva

Application Number:

JP2013512791A

Publication Date:

April 26, 2016

Filing Date:

June 01, 2011

Export Citation:

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