796results about How to "Reduce friction and wear" patented technology

The invention discloses a plunger pump driven by a linear motor. The plunger pump is characterized in that the plunger pump is driven by the linear motor, and the movement rule of an assembly is controlled by controlling the movement rule of the linear motor, so that the defects of an existing plunger pump are overcome, and the advantages of the plunger pump are exerted to the maximum extent.

A lubricating composition for internal combustion engines especially useful with fuels having less than 350 ppm sulfur comprises a lubricating oil basestock, a boron containing ashless dispersant, a molybdenum containing friction reducing agent, a metal type detergent and zinc dithiophosphate.

The invention discloses a linear motor plunger pump. The plunger pump is driven through a linear motor, the movement rule of an assembly is controlled by controlling the movement rule of the linear motor, and therefore the defects of an existing plunger pump are overcome, and the advantages of the plunger pump are furthest developed.

A bearing system for a turbocharger, simple in design and easy to manufacture, having desired rotational dynamics of a three piece bearing design, yet having the superior vibration damping characteristics of a one piece bearing design. The inboard end of each journal bearing includes an axial recess for receiving an outboard end of a cylindrical bearing spacer, thereby axially locating the journal bearings as well as axially and radially locating the bearing spacer.

A lubricating composition for internal combustion engines especially useful with fuels having less than 350 ppm sulfur comprises a lubricating oil basestock, a boron containing ashless dispersant, a molybdenum containing friction reducing agent, a metal type detergent and zinc dithiophosphate.

A power generating system includes a torque converter system receiving a rotational motion having a first torque from a source and producing a rotational output having a second torque different from the first torque, a transfer system having a first portion coupled to the rotational output of the torque converter system and a second portion magnetically coupled to the first portion, and a generator system coupled to the transfer system to produce and electrical output.

The invention provides a swelling pressure composite forming method for a large-section-difference special-shaped section pipe fitting and relates to a forming method for a large-section-difference special-shaped section pipe-shaped part. The swelling pressure composite forming method comprises the main steps that 1, the perimeters and the equivalent diameters of a plurality of cross sections on the to-be-formed large-section-difference special-shaped section pipe fitting are determined, and the structure of a swelling pressure composite forming mold and the inner cavity size and initial position of a side extrusion mold are determined; 2, an equal-diameter circular-section pipe blank with a certain length is cut and put into the swelling pressure composite forming mold; 3, the equal-diameter circular-section pipe blank is filled with a pressure medium with a certain pressure through a pressure medium inlet, and a variable-diameter circular-section pipe blank is obtained through swelling; 4, the side extrusion mold is driven to extrude the variable-diameter circular-section pipe blank, and the large-section-difference special-shaped section pipe fitting is obtained; and 5, the pressure is released, and after the swelling pressure composite forming mold is opened, the formed pipe fitting is taken out. The swelling pressure composite forming method is used for forming large-section-difference special-shaped section pipe fittings.

A central drive shaft-sliding knuckle combined with a peripheral crank pin-swing link mechanism (CSPS) to provide an orbiting scroll with radial and axial compliant capability. The CSPS mechanism can be applied to both dual floating scroll and single floating scroll structures to improve performances of scroll devices, particularly in oil-free operations. In addition, an orbiting dual thrust ball bearing mechanism is provided to take thrust load in, for example, a floating scroll compressor with a CSPS mechanism.

The invention discloses an indium-iron grid-shaped spherical composite microcrystal composite layer. A surface material layer is arranged on a part and mainly comprises larger indium-iron composite spherical microcrystal units of which the indium content exceeds 50% (Wt%) and the total content of indium and iron exceeds 55% (Wt%), each larger indium-iron composite spherical microcrystal unit is formed by close connection of at least four spherical crystal grains or nearly-spherical crystal grains, the larger indium-iron composite spherical microcrystal units are distributed regularly to form a grid, multiple single crystal grains or smaller indium-iron microcrystal units are closely distributed in the grid, and each smaller indium-iron microcrystal unit is formed by close connection of at least two spherical crystal grains or nearly-spherical crystal grains; the surface material layer and a base body material of the part are integrated to form the indium-iron grid-shaped spherical composite microcrystal composite layer.

The invention is about reducing friction and wear and risk of seizure of mechanically interacting lubricated surfaces. A working surface of a mechanical piece engaged with another piece in relative sliding movement is processed for reduced friction. Two distinctly separate zones are allocated on the surface, one attractive to a lubricant used and the other repelling to the lubricant. The repellency may be conveyed to the repelling zone by either a mechanical modifying process or by a chemical change. In a preferred embodiment of the invention the repellency is obtained by lapping. The lubricant attractive layers are associated in a preferred embodiment of the invention with an assembly of recessed microstructures.

In the invention, an inclined disk is bound on the mainshaft disk at the bottom of the mainshaft and on the inclined disk are uniformly set piston shoes in the flexible connection with the plunger. The plunger hole uniformly set on the cylinder is fitted with the plunger. On the central shaft of the cylinder are disposed a central spring, a spherical hinge and a return disk the piston shoes are close up to the inclined disk. The back-end cap has a radial water outlet and a radial water inlet and the central hole of the back-end cap is in communication with the water outlet. There is a ring groove around the central hole in communication with the water inlet. The mounting hole on the cylinder is corresponding to each plunger hole and in communication with the cylinder central notch. In the mounting hole is mounted a valve body. The cylinder central notch is in communication with the back-end cap central hole and each mounting hole is in communication with the back-end cap ring groove.

The invention discloses a preparation method for a high-intensity nickel-based high-temperature self-lubricating composite material. The composite material is prepared by a hot-press sintering technology. The composite material has the characteristics of low friction abrasion and high intensity under low temperature of 900 DEG C. The material is suitable for manufacturing high-temperature mechanism lubricating components, such as a high-temperature bearing, a bushing, a sliding block and a sealing piece, which can be used at the low temperature of 900 DEG C and has a wide application prospect in the fields of aviation, metallurgy, machinery and the like.

A rotatable payload support turret for operation in a potentially hazardous environment includes a fixed element attached to a vehicle or fixed structure and a rotatable element, supported for rotation with respect to the fixed element. The turret includes a camera payload having a pointing direction configured to be upwardly pointing. An annular clearance gap formed between the fixed element and the rotatable element is sealed by a conventional gas tight magnetic fluid seal element. A wiper seal is also provided in the clearance gap between the location of the magnetic fluid and the external environment to prevent breakdown of the magnetic fluid by elements of the potentially hazardous environment. The clearance gap may also form a labyrinth seal having up to three legs that are oriented to oppose a gravitational force direction. In addition, the fixed element may include a fluid repelling feature for repelling streams of incoming fluids thereby deflecting elements of the potentially hazardous environment away from an outer opening of the clearance gap.