51results about How to "Reduce feed rate" patented technology

A method of producing a hydrogen product stream in which a steam stream is reacted with a hydrocarbon containing stream within a steam methane reformer. The resulting product stream is subjected to a water gas shift reaction and then to pressure swing adsorption to produce the hydrogen product stream. The hydrocarbon stream is alternatively formed from a first type of feed stream made up of natural gas, refinery off-gas, naphtha or synthetic natural gas or combinations thereof and a second type that is additionally made up of a hydrogen and carbon monoxide containing gas. During use of both of the types of feed streams, the flow rate of the steam stream is not substantially changed and reformer exit temperatures of both the reactant and the flue gas side are held essentially constant.

An apparatus for transporting solid waste drill cuttings material produced in the drilling of an oil or gas well, the apparatus including: a waste supply apparatus; a feeder to transport the material; a pneumatic conveying apparatus to which the material is transferred from the feeder; at least one blockage sensing device in the conveyor; and a control apparatus for controlling feed rate of the feeder.

A rotatable endodontic file for cleaning / shaping a tooth root canal, comprising an elongated shaft having a proximal end portion, a distal end and a tapered working portion having a rotational axis, the working portion extending from the proximal portion to the distal end, the external surface of the shaft working portion having a plurality of at least two spiraled, spaced apart continuous helical flutes, the flutes having therebetween an equal number of spiraled, spaced apart flanges, each flange having in a plane perpendicular the rotational axis an outer end surface forming a continuous spiraled scraping / cutting edge extending the length of the shaft working portion, the flutes having helical angles relative to the rotational axis of between 10° and 30° and wherein the helical angles vary at selected longitudinal locations.

A cutting insert for a machining tool has a structure capable of effectively controlling chips generated on a work-piece. The cutting insert includes an upper surface, a lower surface, a plurality of side surfaces connecting the upper surface and the lower surface and a central hole formed at a central portion thereof. In the cutting insert, a seating surface is formed on a highest portion of the upper surface, a plurality of side cutting edge portions are formed at border portions of the upper surface and the side surfaces. Each side cutting edge portion has a side cutting edge formed at an upper end thereof and a corner cutting edge portion is formed at an intersection of two adjacent side cutting edge portions. The corner cutting edge portion has a cutting edge formed at a front end thereof, a land portion, a downward inclined surface, a corner bottom surface, a first upward inclined surface, a first protrusion, a second upward inclined surface, a second protrusion, an upward grooved surface and the seating surface sequentially formed along a diagonal line directed from the corner cutting edge toward the central hole. The corner bottom surface has the smallest height along the diagonal line.

A tire inflation system comprising pneumatically controlled wheel valves that are situated in the wheels of a motor vehicle. An electrically actuated pilot valve that is fixed to the vehicle controls the respective wheel valves. To produce a small, low-cost, reliable tire inflation system, a first and a second compressor are provided. The first compressor supplies a first compressed air system with medium-pressure compressed air and the second compressor supplies a second compressed air system with high-pressure compressed air. The wheel valves are situated in the first compressed air system and the pilot valves are situated in the second compressed air system.

A centrifugal separator comprises a bowl rotating in use around an axis of rotation. The axis of rotation extends in a longitudinal direction, and a radial direction extends perpendicular to the longitudinal direction. A base plate provided at one longitudinal end of the bowl, said base plate having an internal and external side, an outlet opening being provided in the base plate. A casing is projecting at the outlet opening on the external side of said base plate, said casing comprising a casing side, a normal to said casing side extending at an acute angle relative to a circumferential direction of the bowl at said casing and a discharge opening is provided in said casing side. The discharge opening is radially outwardly limited by a weir with an overflow edge and said discharge opening extending radially inwardly to a position above a highest intended level of liquid in the bowl.

An internal caisson / jacket leg cutter and method provides a frame having upper and lower end portions. The upper end portion has rigging that enables the frame to be lifted. Extensible arms are movably supported upon the frame. The arms extend and retract along generally radially extending lines. Extension of the arms enables them to contact the inside surface of a caisson / jacket leg and thus center and anchor the frame within the caisson / jacket leg interior. A cutting mechanism at the lower end portion of the frame includes one or more rotary cutters or milling devices that cut the caisson / jacket leg wall as these cutters traverse an arc shaped path, tracking the caisson / jacket leg wall.

A bimetal band saw blade has a cutting edge with a plurality of cutting teeth defining repeating, variable pitch patterns and variable set patterns within pitch patterns. Each relatively heavy set tooth defines a first primary clearance angle, and each unset and relatively light set tooth defines a second primary clearance angle. Each first primary clearance angle is less than or equal to about 20°, each second primary clearance angle is less than or equal to about 25°, and each first primary clearance angle is within the range of about 4° to about 6° less than each second primary clearance angle. Each unset or light set tooth defines a greater gullet area than a respective heavy set tooth and / or a finer pitch than the respective heavy set tooth. Each tooth defines a positive rake angle within the range of about 3° to about 10°.

The invention relates to a method and a forming machine for deforming a workpiece, such as a metal cylinder or plate (3), by means of a tool, in particular one or more forming rollers (5), wherein the workpiece and / or the tool are rotated about an axis (4) relative to each other, the tool move; through one or more deforming curves and at least part of the workpiece is deformed. During the deforming process, values of one or more coordinates of the position of the extreme: edge of the workpiece are measured, and one or more parameters of the deforming process is / are changed on the basis of the measured values.

The invention provides a method for machining of an aluminum alloy hub flange face. The method for machining of the aluminum alloy hub flange face is characterized by comprising the steps that (I) pre-machining is performed on a hub flange plate; (II), a 120-degree R3 boring cutter is used, machining is performed twice, the accumulated machining amount is 2 mm, and after machining is completed, 2.4 mm machining allowance of a flange face blank is reserved; (III) the 120-degree R3 boring cutter is used, machining is performed twice, the accumulated machining amount is 2 mm, and after machiningis completed, 0.4 mm machining allowance of the flange face blank is reserved; (IV) a 95-degree R0.8 hook cutter is used for machining, and after machining is completed, 0.05 mm machining allowance ofthe flange face is reserved; and (V) the 95-degree R0.8 hook cutter is used for machining, the remaining flange allowance is machined, and machining is completed. The method for machining of the aluminum alloy hub flange face has the beneficial effects that firstly, the feeding rate and the turning amount of the last time of finish turning of the flange face are reduced, and the qualification rate of the flange planeness is guaranteed; and secondly, the feeding direction is from the inner side of the flange plate to the outer side, a cutter bar bears force during turning, the feeding path isnot prone to deformation, and it is guaranteed that capacity is high.