35results about How to "Reduced pumping effect" patented technology

A magnetic tunneling junction device and fabrication method is disclosed. In a particular embodiment, the method includes depositing a capping material on a free layer of a magnetic tunneling junction structure to form the capping layer and oxidizing a portion of the capping material to form a layer of oxidized material.

Systems and methods including a motor or electromagnets to control the movement of one or more pistons in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. Surfaces on a piston or pumping chamber may include hydrodynamic bearing surfaces.

A magnetic tunneling junction device and fabrication method is disclosed. In a particular embodiment, the method includes depositing a capping material on a free layer of a magnetic tunneling junction structure to form the capping layer and oxidizing a portion of the capping material to form a layer of oxidized material.

Systems and methods for providing a variable pumping stroke from a pump comprising a pumping chamber, a pump inlet, a pump outlet, a valving mechanism, and a drive piston. In one embodiment, the pump inlet is in fluid communication with the pumping chamber regardless of the location of the drive piston within the pumping chamber, and the pump outlet is similarly in fluid communication with the pumping chamber regardless of the location of the drive piston within the pumping chamber.

Systems and methods for pumping fluid comprising a pumping chamber, a pump inlet, a pump outlet, a valving mechanism, and a drive piston or pumping chamber wall including a deformable surface configured to provide elastohydrodynamic lubrication during operation.

An improved oil seal is provided for sealing passage of a rotatable shaft through an end wall of a bearing housing in a turbomachine or the like, wherein the shaft is rotatably supported within the bearing housing by oil-lubricated bearings. The improved oil seal comprises a dynamic oil-air separator and a slinger rotor mounted on the shaft for rotation therewith, the slinger rotor having an outwardly extending slinger ring with an outboard seal face with radially oriented slots and a circumferential groove or grooves.

GC-MS analysis apparatus has an interface section between GC and MS sections, which is located with respect to the direction of an analyte flow downstream of the GC section and upstream of the MS section. The interface section comprises at least one membrane with at least one orifice capable of establishing a molecular flow condition in the analyte passing between the GC and MS sections through the membrane. The membrane is subjected to a pressure differential such that the pressure pa in a region located upstream of the membrane is higher than the pressure pb in a region located downstream of the membrane.

Systems and methods including a valve piston in a pumping chamber. The pumping chamber may include a pump inlet and a pump outlet in fluid communication with the pumping chamber. The valve piston may be configured to rotate between a first position within the pumping chamber and a second position outside of the pumping chamber.

A spin transfer torque magnetic random access memory (STTMRAM) magnetic tunnel junction (MTJ) stack includes layers to which when electric current is applied cause switching of the direction of magnetization of at least one of the layer. The STTMRAM MTJ stack includes a reference layer (RL) with a direction of magnetization that is fixed upon manufacturing of the STTMRAM MTJ stack, a junction layer (JL) formed on top of the RL, a free layer (FL) formed on top of the JL. The FL has a direction of magnetization that is switchable relative to that of the RL upon the flow of electric current through the spin transfer torque magnetic random access memory (STTMRAM) magnetic tunnel junction (MTJ) stack. The STTMRAM MTJ stack further includes a spin confinement layer (SCL) formed on top of the FL, the SCL made of ruthenium.

The invention discloses a bottom uniform booster-type vacuum preloading treatment method. The method includes the steps that A, a preloading pit is formed through excavation; B, air inflation pipes are pre-buried in the preloading pit, the air inflation pipes include the bottom air inflation pipes which are pre-buried at the bottom of the preloading pit and vertical air inflation pipes which are vertically upward and connected with air inflation devices outside the preloading pit, exhaust holes are densely distributed in the upward sides of the bottom air inflation pipes, the bottom air inflation pipes are connected with the vertical air inflation pipes in a guiding mode, and the vertical air inflation pipes are sleeved with springs; C, a soil body needing to be subjected to vacuum preloading treatment is conveyed to the inside of the preloading pit, drainage plates are buried and connected with a pump drainage pipeline and a pump drainage device which are located on the upper portion, and the soil body is covered with sealing cloth; D, the pump drainage device is started to make the drainage plates pump water in the soil body till the pump drainage water amount is obviously reduced; and E, the air inflation devices are started to inflate the bottom air inflation pipes through the vertical air inflation pipes, the bottom air inflation pipes inflate the soil body upwards, and the pump drainage device works at the same time. By means of the bottom uniform booster-type vacuum preloading treatment method, when the pump drainage effects of the drainage plates are reduced greatly, the bottom of the soil body can be inflated, the water is squeezed and gathered to the drainage plates, the drainage effect is further improved, and the water in deep layer soil can also be pumped and drained.

The invention discloses an automobile seat sliding rail lubrication grease. The lubrication grease is prepared from the following components in percentage by weight: 52%-65% of base oil, 26%-33% of sulfonate, 6%-10% of a structure improving agent and 3%-5% of a thickening agent. The lubrication grease adopts food-grade base oil, is free of smell, free of damage to human body and excellent in high-and-low temperature performance, and can meet the application of an automobile seat sliding rail in extreme environment; the high-alkali synthetic calcium sulphonate has excellent extreme-pressure antiwear property and is free of damage to human body; the effects of resisting wearing, reducing friction and reducing noise can be achieved by not adding high-cost solid lubricant; the structure improving agent is capable of effectively improving the thickening capability of the product and shortening the production time; the thickening agent is capable of greatly improving the antiwear property and the antifriction property of the product and also has excellent pumpability; the raw materials are cheap and easily available; the preparation method is simple and easily controllable; the production efficiency of the product is greatly improved.

The present application relates to a system for forming a product from a food block, the system comprising a mold member, such as a mold drum having an axis of rotation, and a feed pump.

Provided are a full-wall-face heating double-speed spiral pseudoplastic fluid pumping device and method. Three parts of a power and power transmission module, a heating module and a spiral shearing and conveying module are included. The heating module carries out heating on fluid from the surface of a spiral device, another high-temperature heat conducting oil branch enters into the position between a cylinder body wall face and a cylinder body heat insulation layer, heating on the fluid on the cylinder body wall face is achieved, accordingly, the effect of full-wall-face efficient heating is achieved, the heating efficiency of pseudoplastic fluid is greatly improved, and the viscosity of the pseudoplastic fluid is lowered. A spiral shearing and conveying device can achieve fluid conveying and apply shearing speeds on the fluid at the same time, and shear thinning effect is achieved. Different shearing speeds can be achieved on the pseudoplastic fluid through a low-speed spiral vane and a high-speed spiral vane, meanwhile, by matching of a large spiral device and a small spiral device, certain negative pressure is formed in a cavity in a forced mode, flowing of the pseudoplastic fluid is achieved, and the pumping effect of the pseudoplastic fluid is improved.