A nylon chain tensioning arm and nylon chain guide having diamond-like carbon coatings are provided. The diamond-like carbon coating is formed on the substrate by methods including physical vapor deposition, for example, by sputtering or chemical vapor deposition of coating systems composed of various combinations of amorphous carbon. A preferred method for applying the diamond-like carbon coating to the nylon substrate is a hybrid process of plasma-based ion implantation and deposition. The chain tensioning arm or guide may be formed from any number of plastics appropriate to the purpose, although a synthetic polymer, such as the aliphatic polyamide nylon, is the preferred material. The substrate may be a conventional nylon or may be a composite reinforced with glass or carbon fibers. The diamond-like carbon coating may be applied to the nylon substrate by vapor deposition, either directly to the chain-contacting surface or upon a primed surface formed on the substrate prior to deposition.

Diamond-like carbon coating on chain guides and tensioning arms for internal combustion engines

A resin composition is provided for a sliding member. The composition contains an amorphous resin, flake graphite, and a carbon fiber. The content of the flake graphite is 5 to 40 parts by mass relative to 100 parts by mass of the amorphous resin, and the content of the carbon fiber is 5 to 60 parts by mass relative to 100 parts by mass of the amorphous resin.

Resin composition for sliding member

An object of the present invention is to provide a chain drive system that can reduce sliding resistance between a chain and a guide shoe, minimize increase of sliding resistance over time, and reduce production cost. Provided is a chain drive system 100 including a plurality of sprockets 101 and 102 over which a chain 130 passes over, and one or more guides 110 and 120 that guide the chain 130. The guides 110 and 120 include integral or separate guide shoes 111 and 121 each having a chain running surface. The chain running surfaces include, in part thereof, a lubricated area 114 where a solid lubricant P is held.

Chain drive system

The present disclosure relates to wet-milled and dried carbonaceous sheared nano-leaves generally characterized by a BET SSA of less than about 40 m 2 /g and a bulk density from about 0.005 to about 0.04 g/cm 3 , and compositions comprising such carbonaceous sheared nano-leaves. The present disclosure further relates to methods for preparing them, and their use as a conductive additive in composites such as polymer blends, ceramics, and mineral materials, or as solid lubricant.

Wet-milled and dried carbonaceous sheared nano-leaves

The utility model discloses a diesel engine chain guide rail which comprises a guide rail seat and a guide rail face, wherein the guide rail face is movably connected to the guide rail seat in a covering mode. The guide rail seat is formed by aluminum alloy in a die-cast mode, and the guide rail face is made of modified PA46 engineering plastics. The diesel engine chain guide rail is simple and reasonable in structure, the guide rail face which is made of the modified PA46 engineering plastics in an injection molding mode is connected to the guide rail seat, which is formed by aluminum alloy in the die-cast mode, in the covering mode, and therefore the chain guide rail has structural performance of an aluminum alloy guide rail and a PA46 material guide rail, the integral rigidity is good, wearing resistance is good, and service life is long.

Diesel engine chain guide rail

The invention relates to a chain guide, respectively a chain tensioner for use in a lubricated sliding system, comprising a surface layer or bearing or comprising a sliding element comprising a surface layer, the surface layer being mainly made of a polymeric material containing a matrix polymer and optionally other components dispersed in said matrix polymer, wherein the matrix polymer consists of a semi-crystalline polyamide (SCPA) having a tensile modulus at 140° C. of at least 800 MPa (measured by the method according to ISO 527-1A). The invention also relates to a power train drive system comprising an engine, a transmission differential and a drive shaft system, a drive chain and a plastic component comprising a sliding element in contact with the lubricated drive chain, wherein the chain guide, the chain tensioner, respectively the sliding element has a coefficient of friction (Co F), measured in lubrication oil at 140° C. at a nominal contact pressure of 1 MPa and a speed of 1 m/s, of at most 0.07.

Sliding element for lubricated sliding system

The invention relates to a sliding element for use in a chain transmission apparatus, comprising a sliding contact section for engagement in sliding contact with a chain, wherein the sliding contact section consists of a plastic material comprising a matrix polymer and dispersed therein graphite platelets comprising platelet particles having a thickness of at most 250 nm. The invention relates to an engine comprising a first sliding element in sliding contact with a second element, wherein at least a sliding contact section is made of such a plastic material comprising such thin graphite platelets. The invention further relates to a chain transmission apparatus, comprising a chain, and a sliding element comprising (i) a sliding contact section engaged in sliding contact with the chain and (ii) a main body reinforcing and supporting the sliding contact section, wherein the sliding contact section consists of such a plastic material.

Roy Antoine Hendrikus Wilhelmus Proost

Papers

Sliding element for lubricated sliding system

Sliding element for use in an engine or chain transmission apparatus