85results about How to "Increase the effective cross-sectional area" patented technology

The invention discloses a tank stabilizer control device, which mainly solves the technical problems of improving the pitch damping effects of ships and the like, and adopts the technical scheme that: a left throttling passage and a right throttling passage are arranged at the top parts of a larboard air chamber and a starboard air chamber of a U-shaped tank stabilizer, throttling components are arranged on the two passages, the two components are connected with a controller which is connected with a detector, detected ship swinging period signals are input to the controller, control signals are output to the two throttling components according to set rules, and the throttling components adjust effective sectional areas of the two throttling passages so as to realize the water level alternation period of the U-shaped tank stabilizer the same as the ship swinging period. The tank stabilizer control device is applied to various U-shaped tank stabilizers.

The invention provides a 3D integrated framework of an ultrahigh frequency power converter. The 3D integrated framework comprises a PCB circuit layer and a winding unit erected on the PCB circuit layer. The winding unit is connected with the PCB circuit layer through a wire. The winding unit comprises winding layers formed on a first insulating layer and a first soft magnetic thin film layer formed on a second insulating layer. The first soft magnetic thin film layer is arranged below the winding layers in a laminated mode to be used for achieving magnetic shielding between the winding layers and the PCB circuit layer. Compared with the prior art, by the adoption of 3D integration, the size of the converter is reduced, and the power density is increased; soft magnetic materials are adopted to form the magnetic shielding layer, magnetic field interference between windings and the PCB circuit layer and between the windings and external metal is solved, the Q value of the windings is increased, the alternating current resistance and high-frequency loss of an inductor and a transformer are reduced, and the working efficiency of the converter is improved; a plane magnetic element is further adopted, and the miniaturization and flattening of products are guaranteed; temperature rising of the magnetic element is reduced greatly, and the working environment of a semiconductor device is improved.

A rope for an elevator in which a plurality of core rope strands are stranded on the outer circumference of a core strand. A core rope strand assembly is constituted of these core rope strands. The core strand has a core strand body, and a resin core strand coating covering the core strand body. Each core rope strand has a core rope strand body. The core rope strand assembly is covered with the resin core rope coating. Plurality of outer layer strands are stranded on the outer circumference of the core rope coating. An outer layer strand assembly is constituted of these outer layer strands. The outer layer strand assembly is covered with an outer layer resin coating.

A projectile deployment system for use in a intercepting target (32) wherein the system includes a body (10) defining a body axis, and a number of barrels (30) circumferentially spaced around the body axis. Each of the barrels (30) contains a number of projectiles (31) axially stacked therein, with a corresponding number of charges being provided such that each charge is associated with a respective projectile (31) along barrel (30). Each of the charges is individually activated to deploy a respective projectile (31) in response to a signal from a controller.

The invention relates to a juice extracting head and a low-speed juice extracting machine with the same. The juice extracting head comprises a body with a cutting groove, more than one cutting thread is arranged on the juice extracting head, and a continuous cutting edge formed by more than one cutting thread is arranged at the top of the juice extracting head. The cutting thread at the upper part of the juice extracting head is deep, the cutting thread at the lower part is shallow, and gradual transition is further formed. A rotating shaft of the juice extracting head is connected with a motor shaft of a motor through an elastic mechanism; or the rotating shaft of the juice extracting head is connected with the motor shaft of the motor through a buckle. The elastic mechanism comprises a shaft sleeve, a steel ball, a steel ball fixing sleeve, a spring and a fixed shaft, wherein one end of the rotating shaft of the juice extracting head and one end of the motor shaft are simultaneously inserted and sheathed in the shaft sleeve, and the steel ball fixing sleeve and the spring are sheathed outside the shaft sleeve in a sliding manner. A space-keeping position for allowing the steel ball to be pulled out of a positioning groove is arranged at the upper part of the steel ball fixing sleeve. The juice extracting head disclosed by the invention has the characteristics of simple and reasonable structure, small vibration, low noise and wide range of application.

The invention discloses a cable cross-core all-shield electronic current transducer. The transducer can use two ends of one secondary winding individually to provide a sampling signal and input the sampling signal into a signal processing circuit on an electronic circuit board; after processing, two output ends of the circuit simultaneously output two sine shaped analog signals, one signal is a measurement signal for current measurement and metering, and the other is a guard signal for current protection control. The cable cross-core all-shield electronic current transducer has both the measurement function and protection function, thereby realizing integration of a measurement current transducer and a protection current transducer, and having excellent performances, low cost, broad applicability, and remarkable economic and technical effects.

The invention discloses a natural rubber processing technique which comprises the following procedures: crushing, creping, pelleting, drying, weighing and packaging. The natural rubber processing technique is suitable for mixing and processing rubber materials of different grades, a screening procedure is additionally set after the crushing procedure, and a hammer-crushing procedure is additionally set after the creping procedure. The invention aims to provide the natural rubber processing technique which is capable of enabling the processed rubber to be relatively high in consistency, stability and cleanness.

A high frequency component includes a multilayer body including a plurality of insulating layers stacked in a stacking direction, linear conductors extending along the insulating layers, interlayer connection conductors extending through at least one of the insulating layers, and planar conductors extending along the insulating layers. The high frequency component further includes transverse coils and internal capacitors. Each of the transverse coils includes the linear conductors and the interlayer connection conductors spirally wound in a plane in a plurality of turns around a winding axis extending in a direction perpendicular or substantially perpendicular to the stacking direction. Each of the internal capacitors includes the planar conductors being opposed to each other such that at least one of the insulating layers is disposed therebetween, the internal capacitor being arranged within a coil opening of the transverse coil when viewed along the winding axis of the transverse coil.

The invention relates to a motor vehicle exhaust gas detection light beam reflection device and detection system. The motor vehicle exhaust gas detection light beam reflection device includes an upperreflecting mirror group and a lower reflecting mirror group; light axes of reflecting mirrors, on adjacent reflection lines, of the upper reflecting mirror group are perpendicularly arranged, and light axes of reflecting mirrors, on adjacent reflection line, of the lower reflecting mirror group are perpendicularly arranged, and a light beam is reflected by the upper reflecting mirror group and the lower reflecting mirror group and has a folded-line moving direction with an inclined angle of a right angle. The motor vehicle exhaust gas detection system includes a Fourier transform infrared spectrometer and the light beam reflection device. The Fourier transform infrared spectrometer reflects the light beam via the light beam reflecting device and then detects the motor vehicle exhaust gas.The detection of the motor vehicle exhaust gas is more accurate and more economical, and the application scope is wider, so the application of the detection system and method can be promoted.

The invention discloses an online paper quality detection device of a high-speed paper machine. The online paper quality detection device comprises an 'O'-shaped frame body, a central processing unit and an upper computer, wherein the 'O'-shaped frame body comprises a transverse beam and an upright pillar which are connected with each other. The online paper quality detection device is characterized in that the transverse beam of the 'O'-shaped frame body is provided with scanning heads in sequence, each scanning head is provided with at least one sensor for acquiring data information, and the sensor communicates with the central processing unit through a CAN (Controller Area Network) bus; the central processing unit communicates with the upper computer through a TCP/IP (Transmission Control Protocol/Internet Protocol); the central processing unit is connected with a driving unit for controlling the 'O'-shaped frame body to steadily operate at high speed. The online paper quality detection device has the beneficial effects of guaranteeing the high-speed steady operation of the frame body as well as the high-speed detection and the processing of data simultaneously when accomplishing the normal function of a QCS (Quality Control System).

The invention discloses a multi-groove and large-powder transformer. The multi-groove and large-powder transformer comprises a framework and a magnetic core, wherein the framework comprises a windingcylinder and a limitation plate, two partition plates are arranged on the winding cylinder, the winding cylinder is divided into a first winding groove, a third winding groove and a second winding groove by the two partition plates, the first winding groove and the third winding groove used for winding a first winding, the second winding groove is used for winding the second winding and is arranged between the first winding groove and the second winding groove, a shell is arranged on the framework and covers the winding cylinder, a baffle plate is arranged on the shell, and limitation groovesare formed in the two partition plates and are plugged into the baffle plate. By winding the first winding groove and the second winding groove around the first winding, the winding layers in a singlegroove are reduced, and a skin effect is reduced; and with the mode of LC resonance, the efficiency of the transformer is improved, the second winding is wound in the second winding groove between the first winding groove and the second winding groove, the creep distance between the first winding and the second winding is extended, and the transformer is safer and more reliable.

The invention discloses a valve plug of a height adjustment reversing valve and a girth welding process thereof for a height adjustment system of a coal mining machine. The valve plug comprises a valve plug body, a left plug head and a right plug head; the left plug head and the right plug head are respectively provided with a left annular boss and a right annular boss the outer diameter of whichare the same with the outer diameter of the valve plug body; and the left annular boss and the valve plug body as well as the right annular boss and the valve plug body are respectively fastened and connected through a circular ring-shaped soldering joint which is arranged along the valve plug body radially. The girth welding process comprises the following steps: 1. groove treatment; 2. preheating before welding; 3. girth welding; and 4. heat preservation after welding. The valve plug and the process provided by the invention have the advantages of reasonable design, simple welding steps, good welding quality and long service life of valve plug manufacturing, are convenient to operate, and multiple actual problems of small operation space, smaller effective welding cross section area, lower strength, poor welding quality and higher rejection rate, is inconvenient to operate, the welding quality of the valve plug is not easy to control and the like in welding for the existing valve plug can be solved effectively.

The invention discloses a special high-efficiency and energy-saving enameled and stranded wire cable and a manufacturing method thereof. The cable is a novel product capable of increasing the perimeter of the cross sections of conductors, and the manufacturing method is a novel method. The technical means such as hole shrinkage, root increase, ellipse perimeter increase and insulation and isolation perimeter increase are adopted on the basis of the prior art, so that the perimeter of the conductors is increased greatly. Particularly, in a stranded wire range, the perimeter of the total cross sections of the conductors is increased greatly, so that the surface areas of the conductors are increased greatly, the heat dissipation efficiency of the conductors is improved, the resistance of the conductors is reduced, the conduction efficiency of the conductors is improved greatly, the line loss is reduced, the voltage quality is improved, a raw material is saved, and the electric energy is saved. Figure 10 is effect representation after three technical measures are taken. A rule is found that the maximum alternating current allowed to pass through the conductors is directly proportional to the perimeter of the cross sections of the conductors. The rule is a great discovery in physics; a theoretical foundation is laid for researching and developing the wire cable and more efficiently utilizing the electric energy; and the wire cable and the method have significant economic and social benefits.

A high-voltage motor that is convenient for adjusting the magnetic circuit characteristics of the motor, including a stator and a stator slot, and a coil is embedded in the stator slot, and is characterized in that it also includes a slot wedge arranged at the opening of the stator slot, and the slot wedge is "T" It is composed of a protruding tenon end and slot cover ends located on both sides of the tenon end and extending in opposite directions; the center line of the tenon end and the connection line between the two slot cover ends are basically in an orthogonal relationship; adjacent on the stator There is a tenon groove between the stator slots, and the tenon end is matched and embedded in the tenon groove on the stator. The slot cover ends of adjacent slot wedges jointly complete the coil fixing in the stator slot. The slot cover ends of two adjacent slot wedges There is a magnetic circuit gap between them; the first backing plate, the coil, the second backing plate and the thermal expansion glass felt are arranged in sequence in the stator slot. The invention reduces the surface loss and pulse vibration loss of the motor, improves the efficiency of the motor, the end of the slot wedge and the stator are tightly fitted, is not easy to loose, has high limit reliability and long service life, and is beneficial to reduce the vibration and noise of the motor operation .

The invention discloses a current transformer, which is capable of solving the problem of temperature rise of a primary copper conductor due to a skin effect. The current transformer comprises a primary coil and two primary wiring boards, wherein the primary coil is formed by combining a cylindrical conducting rod and a tubular conducting tube sleeving the cylindrical conducting rod; each wiring board is L-shaped and comprises a connecting arm and a flat wiring board; a connection hole is formed in the upper end of each connecting arm; and the primary coil is connected with the wiring boards through the corresponding connection holes.

The invention provides an armature coil of a direct-current motor, relates to an arrangement mode of an armature coil of a low-voltage and high-current direct-current motor in an armature core, and is mainly to solve the problems that since components of the conventional armature coil of the existing low-voltage and high-current direct-current motor are parallelly arranged in a line, occupation space of electromagnetic wire body insulation is big and armature punching grooves are not fully utilized, and the two components in the middle cannot be closely attached to an armature core groove and it is difficult for coil components to dissipate heat. The armature coil of the invention is composed of two single big U-shaped coil components and two single small U-shaped coil components, wherein the big U-shaped coil components are arranged outside the small U-shaped coil components. The armature coil components of the direct-current motor are wound by single electromagnetic wires, so that the occupation space of the electromagnetic wire body insulation is reduced and armature coil groove-filling ratio is increased; effective sectional areas of the components formed by the single electromagnetic wires are big, so that current density and heat factors of the armature coil components are reduced; and each component is closely attached to the armature core groove wall, so that the coil components can dissipate heat easily and the armature coil is long in service life.

The invention provides an arrangement structure of a transformer substation grounding grid. The structure comprises a movable grounding body used for guiding a current into the ground, fixed groundingbodies used for current guiding and fixing of the movable grounding body, connection buckles used for connecting the fixed connection bodies and the movable grounding body, and grounding down conductors arranged at one end of the movable grounding body, wherein the grounding down conductors are connected with the electrical device of a transformer substation for current guiding of the electricaldevice. In the arrangement structure of the transformer substation grounding grid, the fixed grounding bodies are enlarged from inside to outside until the area of the grounding grid is the same as the area of the transformer substation, corners of a fixed grounding body are in fit contact with the sides of the larger fixed grounding body so as to increase the effective sectional area of the grounding body, correspondingly reduce the contact resistance and improve the diversion efficiency.

A valve control apparatus controls a valve for adjusting a pressure of a reaction gas supplied to a fuel cell. The valve control apparatus includes: an estimation portion that estimates a valve effective cross-sectional area of the valve; and an opening adjustment portion that adjusts opening degree of the valve with control amount corrected based on the valve effective cross-sectional area estimated by the estimation portion.