62results about How to "Eliminate frictional resistance" patented technology

A retrievable pig apparatus having a substantially cylindrical body portion, the body portion having a central flow bore therethrough, and secured to coiled tubing, including a central fluid flow bore in fluid communication with the interior bore of the coiled tubing; a plurality of flow bores spaced equally apart within the body, with the flow bores allowing fluid flow to be injected at a certain predetermined pressure through the flow bores, so as to be emitted on the front end of the pig for defining a high pressure spray of fluid or the like material to break up blockages of debris in the pipeline, such as paraffin or the like; the debris retrieved through the central bore back into the coiled tubing to be stored in a tank or the like on the surface. There is further included a plurality of flexible cups, spaced apart along the outer wall of the pig body, each cup secured to an interior metallic ring around the body of the pig, with the flexible cups making contact with the wall of the pipeline so as to provide a continuous fluid seal between the wall of the pipeline and the ends of the plurality of flexible cups. Intermediate each cup there is provided a compressible safety ring, which will compress under excess pipeline pressure, thus allowing the fluid to flow past the plurality of flexible cups, reducing the pressure in the pipeline. Further there is provided within the plurality of six flow bores around the interior flow bore, for adjusting the force that is allowed to flow through the plurality of bores in either direction by providing a first and second thruster springs of a pre-determined compressible force for allowing the spring to be compressed and effecting fluid flow therethrough in the direction in which the flow is to travel in the bores.

A medium feeding apparatus includes: a pivot unit, supporting a medium and pivoting to cause the medium to come in contact with and to separate from a feeding unit; a first guide unit, guiding one side end of the medium supported on the pivot unit; a second guide unit, guiding the other side end of the medium; a first moving unit, moving the first guide unit to come in contact with and to separate from the one side end of the medium in conjunction with the pivoting motion of the pivot unit; and a second moving unit, moving the second guide unit to come in contact with and to separate from the other side end of the fed medium in conjunction with the movement of the first guide unit.

The invention provides a high-pressure plunger pump with an automatic oil distributing system. The high-pressure plunger pump is characterized in that an oil inlet and an oil outlet are positioned at the bottom part of a plunger valve cylinder, are consistent in dimension and form and are respectively provided with a large-diameter end and a small-diameter end; the large-diameter end of the oil inlet is communicated with the valve cylinder; the small-diameter end of the oil outlet is communicated with the valve cylinder; a reducing slope is positioned between each large-diameter end and the corresponding small-diameter end; and steel balls are arranged in the large-diameter ends at the reducing slopes. According to the high-pressure plunger pump with the automatic oil distributing system, the oil distribution of a whole oil channel system of a pump body can be automatically adjusted, and frictional resistance caused by the fact that some plunger pumps are provided with oil distributing discs below valve bodies can be removed; the plunger pump is high in leakproofness, so that the requirement of the pump body on quick oil outlet at high pressure can be met, and the performance of the pump body can be effectively improved; and in addition, when serving as a horizontal pump, the plunger pump has the advantages that the height of the pump body is reduced and the installation is more stable.

The invention discloses an air cushion carrying device, consisting of a bracket, an air generating device, a jet power device, a bearing tray, a pedestal track, an air collecting tank and a guiding balance device, wherein the bearing tray is installed at the bottom of the bracket and is arranged on the pedestal track in parallel, and the bearing tray is provided with an air hole communicated with the air connecting tank; the guiding balance device is arranged at the bottom of the bracket and consists of left and right guiding balance disks, left and right pressure shift sensors, left and right electric valves, a pressure shift convertor and a guiding track, wherein the left and right guiding balance disks are provided with air holes in the direction adjacent to the track, are provided with the left and right pressure shift sensors and are communicated with the air connecting tank through the left and right electric valves; and air with a certain pressure is generated by the air generating device, and is stored by the air connecting tank. In the device of the invention, the bearing tray is used to replace a wheel to rotate and support and the guiding balance disks are used to keep the device move along the guide track, thereby effectively eliminating shock and friction resistance. The invention has the advantages of saved energy, high speed, steady, safety and the like.

The invention relates to a blower. The blower comprises a base; a housing disposed on the upper side of the base and having an air inlet and an air outlet formed therein; a fan disposed inside the housing; a rotating disk connected to the housing and rotatably disposed on an upper side of the base; a motor for generating power for rotating the rotating disk; and a bearing which is disposed between the rotating disk and the base, is fixed to the rotating disk, and is movably supported by the base. As the bearing disposed on the rotating disk is supported on the base and rotates, the rotation of the blower is stably supported by the base and the bearing.

A small-sized rotor type electromagnetic regulating valve and method of use thereof, comprising rotor type electromagnetic driving mechanism and butterfly type valve regulating mechanism in coaxial connection, wherein the electromagnetic driving mechanism includes a stator, a rotor arranged in the stator and a rotor return spring, the valve regulating mechanism includes a valve body and a valve plate. The invention realizes simple structure, sensitive opening and closing, high resolution factor, small return difference, accurate valve position and good linearity.