34results about How to "High friction durability" patented technology

A power transmission fluid composition, a power transmission containing the fluid, a method of operating a power transmission with the fluid and method of improving friction durability for a power transmission fluid. The power transmission fluid includes (a) a base oil and (b) an additive composition having therein (i) at least one ashless dispersant; (ii) a metal detergent providing greater than about 100 ppm metal in the power transmission fluid composition; (iii) a friction modifying amount of an imidazoline; (iv) a succinimide friction modifier; and (v) a non-hydroxy tertiary amine friction modifier other than (iii).

There is provided an automatic transmission fluid composition comprising a major amount of a base oil; one or more friction modifiers, wherein total nitrogen content provided by the one or more friction modifiers is greater than or equal to about 300 ppm; and one or more ashless dispersants, wherein the total nitrogen content provided by the one or more ashless dispersants is greater than or equal to about 500 ppm. The automatic transmission fluid may have a kinematic viscosity at 100° C. of from about 4 cSt to about 6.5 cSt and a Brookfield viscosity at −40 ° C. of from about 4,000 cP to about 20,000 cP.

The invention discloses a continuous carbon fiber sucker rod with a wear-resistant protective layer and a preparation method thereof. The continuous carbon fiber sucker rod comprises a sucker rod body, a glass fiber layer coated on the surface of the sucker rod body, and a wear-resistant layer coated at the outer side of the glass fiber layer, wherein the wear-resistant layer comprises a fiber-reinforced fabric and a thermoplastic resin layer coated on the surface of the fiber-reinforced fabric, and hard wear-resistant particles are uniformly mixed in the thermoplastic resin layer, so that the hard wear-resistant particles are uniformly distributed on the surface of the wear-resistant layer. The hard wear-resistant particles are uniformly distributed on the surface of the sucker rod, and by virtue of the high hardness and high wear resistance of inorganic hard particles and the ball form formed with the mesh fabric structure, the eccentric wear resistance of the wear-resistant layer on the surface of the composite sucker rod is strengthened. Meanwhile, the part where the hard wear-resistant particles are in contact with the interface of the sucker rod body plays a role of interface mechanical meshing, thereby preventing the wear-resistant protective layer from slipping and layering from the surface of the sucker rod.

A power transmission fluid composition comprising a succinimide, a borated dispersant, and a phosphorus-containing antiwear component.

A power transmission fluid composition having improved characteristics. The fluid may include a base oil and an additive composition, wherein the additive composition includes an ashless dispersant and an oil-soluble aliphatic tertiary amine. The resulting fluid may have improved durability characteristics.

A lubricant composition, a multi-vehicle transmission fluid, and a method for making a transmission fluid. The lubricant composition includes a) a base oil; b) 2,5-dimercapto-1,3,4-thiadiazole (DMTD), a derivative of DMTD, or mixtures thereof; and c) a friction modifier. The friction modifier is made by reacting an olefin containing at least 40% by weight C₁₀-C₃₆ vinylidene olefin with maleic acid, anhydride, or ester to provide a first reaction product, and aminating the first reaction product with an effective amount of a compound containing basic nitrogen to provide the friction modifier. The C₁₀-C₃₆ vinylidene olefin is represented by the following formula:

wherein R_c and R_d are independently a (C₃-C₁₅) alkyl, cycloalkyl or cycloalkenyl.

A medical device having good surface lubricity in the wet condition, high frictional durability and surface lubricity stability includes a body and a smoothing or lublicating coating on a surface of the body. The coating is produced by applying a solution of a mixture of maleic anhydride high polymer and polyurethane having allophanate bond on a surface of the body, insolubilizing the resultant coating by heating, and then hydrophilizing the coating with a hydrophilizing agent such as ammonia, amine or alcohol.

A vehicle air vent includes a plurality of vanes installed in an air discharge port in a body to be rotatable in a horizontal direction. By coupling the vanes to each other, when a knob provided on one vane is operated, all of the vanes are rotated together, and a hinge shaft provided at each of an upper end and a lower end of each vane is inserted into and connected to a hinge hole of a spacer provided at each of an upper end and a lower end of the air discharge port of the air vent body. A damper bushing connected to a front end portion of the vane hinge shaft passing through the hinge hole is installed below the hinge hole of a spacer to which each hinge shaft of the vane provided with the knob is connected.

A relatively low viscosity transmission fluid composition, transmissions containing the fluids, and methods of operating motor vehicles with the fluids are described. The transmission fluid composition includes a lubricant basestock, at least one active sulfur-containing component, and at least one phosphorus-containing compound. An active sulfur atom content of the composition is greater than about 0.02 wt. %, and a ratio of active sulfur atoms to phosphorus atoms in the composition is above about 5. The composition has a viscosity at 100 DEG C. ranging from about 4 to less than about 7 centistokes.

A mooring system comprising a first and a second object, wherein at least said first object is floating, and wherein said mooring system further comprises a hawser with a first end adapted to be attached to said first object, and a second end adapted to be attached to said second object, wherein the hawser comprises at least two rope segments with an intermediate chafing member arranged between the at least two rope segments, wherein the intermediate chafing member runs via a fairlead and said fairlead is adapted to be arranged adjacent a side of said first object facing the second object and said first end being attached to an attachment point of said first object, which attachment point being distanced to said fairlead.

A plurality of virtual gear positions are established by an electric continuously variable transmission, and the number of speeds of the virtual gear positions is equal to or larger than the number of speeds of mechanical gear positions of a mechanical stepwise variable transmission. One virtual gear position or two or more virtual gear positions is/are assigned to each mechanical gear position, and the mechanical gear position is shifted in the same timing as shift timing of the virtual gear position. The virtual gear positions assigned to each mechanical gear position when the mechanical gear position is upshifted are different from the virtual gear positions assigned to each mechanical gear position when the mechanical gear position is downshifted. Thus, the amount of heat generated in frictional engagement elements of the mechanical stepwise variable transmission is prevented from being increased.

The invention provides a polyester fibrous product which has the excellent allergen reduction effect, can restrain whitening and chalk marks, and is excellent in friction durability. The polyester fibrous product is characterized in that in the polyester fibrous product, the zirconium based compound having the anti-allergen effect and a sulfonyl group-containing aromatic compound are adhered with the help of an adhesive by the ratio of 1 to 6g/m2:0.05 to 1.5g/m2; the adhesive is adhered by the amount of 0.05 to 0.25g/m2; and the adhesive is the acrylic resin.

The present invention discloses a process for manufacturing an alkylphosphonate monoester. The process may comprise partially hydrolyzing an alkyl phosphonate diester with an alkaline compound in a first solvent to provide a reaction mixture, wherein the first solvent comprises a mixture of an alcohol and water. The reaction mixture may be diluted with a second solvent to provide an organic phase, wherein the second solvent comprises at least one non-polar organic solvent. The process may comprise acidifying the reaction mixture with an acid, wherein the organic phase includes an alkylphosphonate monoester.