Mahle International Gmbh

Mahle Metal Leve S/a

Applied Nano Surfaces Sweden Ab

Antonio Eduardo Meirelles Tomanik

Paulo Roberto Vieira De Morais

Boris Zhmud

Denys Flores

Daniel Lopez

Mattias Granlund

Christian Kolar

Mauricio Ciminelli Duarte De Souza

The present invention relates to a method for the lining of a thin-walled sliding element () for internal combustion engine blocks ion which: (i) the pressure applied for honing the sliding element () is between 8 MPa and 9 MPa; and (ii) at least a part of the inner surface () of the sliding element () comprises a nano-coat of solid lubricant provided with roughnesses, before honing, of Rpk, Rk and Rvk no lower than &#x2154; of the original.

Method for the tribomechanical conditioning of a thin-walled cylinder/liner, and cylinder liner

A running set for an internal combustion engine may include at least one of a cylinder liner and an engine block including at least one integrated cylinder. The running set may further include at least one piston ring. The at least one piston ring may define an outer running face and the at least one of the cylinder line and the integrated cylinder may define an inner running face. At least one part of the outer running face may include a coating composed of a ceramic material. At least one part of the inner running face may include a proportion of less than three percent of a folded metal.

Running set, piston bushing and engine block

A piston ring for a piston of an internal combustion engine or a compressor may include a substantially annular shaped body defining an inner surface facing towards a groove configured to receive the body, an upper surface facing towards a combustion chamber and extending substantially at a right angle to the inner surface, and a lower surface disposed substantially opposite the upper surface. A layer of thermally insulating coating may be disposed at least partially on at least one of the inner surface, the upper surface and the lower surface.

Piston ring and method for manufacturing same

A sliding assembly for utilization in an internal combustion engine may include at least one piston ring and a cylinder head provided with a through cavity defining an internal surface. The internal surface may define a TDC portion in a proximity of a top dead center, a central portion, and a BDC portion in a proximity of bottom dead center. The TDC portion, central portion, and BDC portion may present surface finishes having a first roughness, a second roughness, and a third roughness, respectively, each defined by a structure of recesses and projections, at least one of which may be substantially uniform. The second roughness may be less than the first roughness value. The piston ring may present at least part of a contact surface upon which a ceramic coating may be applied by a physical vapor deposition.

Sliding assembly

A piston for an internal combustion engine may include a substantially circular body composed of an aluminum containing base material defining a top portion having at least one cavity. At least one coating layer may be disposed on at least one area defined by at least one of the top portion and the at least one cavity. The at least one coating layer may include at least one chemical compound derived from a chemical reaction between the base material of the body and the at least one coating layer in response to friction generated by a dragging movement of a non-consumable rotary pin with the at least one coating layer.

Engine piston and a process for making an engine piston

The present invention relates to a piston ring (), particularly a compression ring, for an internal combustion engine, comprising a ring-shaped body () having a ring joint () formed by butt ends (), the ring-shaped body () further having a ring contact face () along its perimeter, for contacting a cylinder wall in operation. According to the invention, the ring contact face () has a barrel-shaped profile, the barrel-shaped profile having in any of its cross-sections an area of maximum curvature, whose radius of curvature increases in the direction of the butt ends ().

Growing community of inventors

Sao Paulo, Brazil

Antonio Eduardo Meirelles Tomanik