542results about How to "Wide range of operations" patented technology

Clock alignment circuits and techniques for reducing power dissipation, increasing power supply noise immunity, decreasing process and temperature variation sensitivity, and providing a wide operating range. A power supply generator generates an isolated supply voltage for a delay line used in a clock alignment circuit. The delay line generates a delayed clock from a reference clock. A comparator detects a correction information (i.e., delay or phase error) between the delayed clock and the reference clock and generates error information representative of the correction information. A charge pump circuit converts the error information into a voltage signal, wherein the voltage signal is a scaled representation of the error information. The power supply generator includes an amplifier having a first input coupled to the voltage signal and an output to provide the supply voltage and a capacitor coupled between the supply voltage and a ground voltage, wherein the amplifier tracks the voltage signal level to regulate the supply voltage.

A method of operating an engine, comprising of performing homogeneous charge compression ignition combustion during a first operating condition, and performing spark ignition combustion during a second operating condition, where an amount of directly injected alcohol in at least one of said homogeneous charge compression ignition combustion and said spark ignition combustion is varied in response to at least an operating parameter.

The present invention relates to a rotary blood pump with a double pivot contact bearing system with an operating range between about 50 mL/min and about 1500 mL/min is described, wherein the force on the upper bearing is less than 3N during operating speeds up to 6000 rpm. The invention also relates to a method of using a blood pump system for persistently increasing the overall diameter and lumen diameter of peripheral veins and arteries by persistently increasing the speed of blood and the wall shear stress in a peripheral vein or artery for period of time sufficient to result in a persistent increase in the overall diameter and lumen diameter of the vessel is provided. The blood pump system may also be used to reduce venous hypertension in a lower extremity and increasing the rate of healing of lower extremity venous ulcers in patients is provided. The blood pump system includes a blood pump, blood conduit(s), a control system with optional sensors, and a power source. The pump system is configured to connect to the vascular system in a patient and pump blood at a desired rate. The pumping of blood is monitored and adjusted, as necessary, to maintain the desired elevated blood speed and wall shear stress, and the desired pulsatility in the target artery or vein in order to optimize the rate and extent of the persistent increase in the overall diameter and lumen diameter of the target peripheral artery or vein or to result in a reduction in venous blood pressure in the treated lower extremity or healing of the lower extremity venous ulcer.

An engine system with a turbocharger is provided. The system may include an exhaust manifold having plural independent exhaust passages, each of the exhaust passages being connected to an exhaust port of a corresponding engine cylinder. The system may further include a collective part formed by gathering said independent exhaust passages in said exhaust manifold or on a downstream side of said exhaust manifold. The system may further include an exhaust turbocharger connected to a downstream side of said collective part. The system may further include a variable exhaust valve for changing each passage cross-sectional area of said independent exhaust passage at an upstream side of said collective part. The system may further include a controller for controlling said variable exhaust valve, wherein said controller is configured to perform independent exhaust throttle control for reducing a passage cross-sectional area of at least one of said independent exhaust passages.

Method of determining the state of charge soc of a battery, in particular a starting battery of a motor vehicle; the state of charge being calculated, in a first operating range, on the basis of a model calculation in which a measured and a calculated battery voltage U_Batt, U_Batt, are balanced, using feedback.

The present invention provides a method and apparatus of producing a dense coating with desirable stress conditions similar to coatings produced by a cold spray processes, but with higher process efficiencies and lower gas consumption. The inventive process combines features of a plasma process method of gas heating and a cold spray process to accelerate the gas, incorporating these elements into a single hybrid process.

The invention discloses a technics and device belong to material covering technical field for producing polymer envelop with a high molecule for controlled release of fertilizer adopting spray precipitated phase conversion method. The method firstly makes the material grain in a stable circulating fluidized state and then coats the membrane preparation liquid such as organic polymer to the moving grain surface by double-fluid blow head to prompt the phase splitting of the solvent and solute of the membrane preparation liquid which deposits on the grain surface by the means such as heat air. The solvent is volatilizing from the liquid phase to the air phase. The solute transfers from the highly dispersed liquid phase to a solid phase with a transparent film structure. The device comprises: air electric heater, spouted fluidized bed, condensator, solvent absorbing flume and collector thereof, reaction kettle for heating and blending at a constant temperature, double-fluid blow head and circuit thereof and automatic control system. The technics and device is suitable for atomizing and depositing the different envelop liquid containing polymer with a high molecule on the urea or complex fertilizer grain to produce the controlled release of fertilizer with an envelop whose releasing period is 1-9 months.

A cyclone separator including an initial cyclone arrangement (1) arranged first in relation to a flow direction (18) through the separator; a second cyclone arrangement (2) connected in series with the initial cyclone arrangement; a bypass channel (3) bypassing the second cyclone arrangement (2), and a volumetric flow controlled valve device (4) for selectively directing a partial stream (5) through the bypass channel (3).

A user operates a GUI with a thumb and an index finger while holding an information processing device with left and right hands. The GUI screen image displays a directional keys input area at the lower left on the screen image, a button input area at the lower right on the screen image, an L1/L2 button input area at the upper left on the screen image, and an R1/R2 button input area at the upper right on the screen image. The L1/L2 and the R1/R2 button input areas are in the form of circle sectors, whereby the center angles of the circle sectors are at right angles of the two upper corners of the screen, and by internally dividing the center angles further so as to divide the sectors into two sectors respectively, the L1 and L2 buttons, and the R1 and R2 buttons are distinguished.

A GUI screen image is a standard screen image, and displays a first combined GUI area, which is a combination of a GUI of the directional keys and a GUI of a joystick, and a second combined GUI area, which is a combination of a GUI of the four-type operation buttons and a GUI of a joystick, at the lower left and at the lower right on the screen image, respectively. Depending on an area in the first combined GUI area or in the second combined GUI area to which a user newly touches, which of the combined GUI to be used is determined and a screen image is switched, and if a finger or a thumb detaches, the screen image switches back.

In one embodiment of a compact closed-drift ion source, an ionizable gas is introduced into a annular discharge region. An anode is at one end of this region and an electron-emitting cathode is near the opposite and open end. A magnetic circuit extends from an inner pole piece to an outer pole piece, with both pole pieces near the open end. The electron current in the discharge region interacts with the magnetic field therein to generate and accelerate ions out of the open end. A permeable enclosure surrounds the anode end of the discharge region. Adjacent elements of the permeable enclosure, the inner pole piece, and any intermediate permeable elements are in close proximity, one to the next. A magnetizing means is located only between the outer pole piece and the permeable enclosure.

The invention relates to a mechanism arm with a frame-type extension arm. The mechanism arm comprises a supporting arm, a wrist raising mechanism, a wrist rotation mechanism and a grasping mechanism, wherein the wrist raising mechanism comprises an expansion link hinged on the supporting arm, and the front end of the expansion link is connected with the base of a wrist through a first connecting rod; the wrist rotation mechanism comprises a wrist rotation control motor fixed on the wrist base, and the wrist rotation control motor is engaged with a connecting shaft gear on the wrist base through a driving gear; and the grasping mechanism comprises a grasping control motor fixed in the connecting shaft gear, the grasping control motor is in butt joint with a lead screw, the lead screw is provided with a nut, a connecting disk is fixed on the connecting shaft gear, a finger mechanism is hinged on the connecting disc, and a second connecting rod is hinged between the finger mechanism and the nut. According to the mechanical arm with the frame-type extension arm, more complex grasping movement in a larger space range can be achieved, and the movement is stable and accurate.

Claus sulfur recovery plants that include one or more single-stage or multi-stage compact tubular Claus catalytic reactor-heat exchanger units are disclosed. In some instances, these new or improved Claus plants additionally include one or more compact heat exchanger containing cooling tubes that are filled with a heat transfer enhancement medium. The new compact tubular Claus catalytic reactor-heat exchanger units and HTEM-containing heat exchangers are also disclosed. A process for recovering sulfur from a hydrogen sulfide-containing gas stream, employing the new tubular Claus catalytic reactor-heat exchanger unit, and in some instances a HTEM-containing heat exchanger, are also disclosed.

A centrifugal compressor is equipped with an impeller having a blade angle distribution that makes it possible to achieve a relatively wide operating range. The blade angle of a shroud side facing a circular plate of a blade is termed a first angle and a blade angle of a hub side disposed at the circular plate is a second angle. The shroud side is formed in a curved shape having an angle distribution from a front area in a shaft direction toward a centrifugal direction in which the first angle is the local maximum point before a substantially middle portion and the local minimum point after the substantially middle point. The hub side is formed in a curved shape having an angle distribution from the front area in the shaft direction toward the centrifugal direction in which the second angle is the maximum local point before the substantially middle portion.

The disclosed sulfur recovery system and process avoid some of the operational problems of conventional Claus plants and processes by replacing the reaction burner and furnace tube of a conventional Claus plant with a more efficient short contact time catalytic reactor assembly containing a SPOC™ catalyst that operates efficiently at elevated temperatures. Such Claus plant modification also reduces or avoids the negative effects of hydrocarbons, CO₂ and ammonia in Claus sulfur plant feeds, and permits efficient processing of dilute to concentrated H₂S feeds. The disclosed modification makes possible the expansion of Claus plant capacity at lower cost.

An infrared camera with lower dissipation power, a wide range of operating environment temperature, and a shorter warmup is provided. The infrared camera includes a plurality of device operating-temperature setting circuits setting respective device operating temperatures different from one another, a device operating-temperature setting switch for selecting one of the output of the device operating-temperature setting circuits, and a temperature sensor, and performs imaging by switching the connection target of the device operating-temperature setting switch according to a measurement by the temperature sensor, that is to say, according to the temperature inside an enclosure and selecting an operating temperature for an imaging device among a plurality of device operating-temperature settings.

The invention discloses a flying robot with a mechanical arm and a control method thereof. The flying robot comprises a multi-rotor unmanned aerial vehicle flying platform, the six-degree-of-freedom mechanical arm and an operation end control system, wherein the six-degree-of-freedom mechanical arm is installed under the multi-rotor unmanned aerial vehicle flying platform. The unmanned aerial vehicle is combined with the mechanical arm, so that the task execution capability of the unmanned aerial vehicle is expanded; and the movement range of the mechanical arm is expanded from the ground to the air, meanwhile, the control mode of the mechanical arm is improved, the new control mode can enable the mechanical arm to move along with a human arm, so that the idea of an operator can be executed more naturally and flexibly. According to the flying robot and the control method thereof, the operation ranges of the unmanned aerial vehicle and the mechanical arm are expanded, and remote control of the mechanical arm is realized; the mechanical arm can move along with the postures of the human arm, so that complex model detection and model operation are avoided, and the response effect is better; and the impact to the mechanical arm and the flying platform during rapid response of a steering engine can be relieved while the rapid response characteristic of the steering engine is kept as far as possible.

In an exhaust gas turbocharger for an internal combustion engine of a motor vehicle with a turbine comprising a turbine housing with at least a first and a second spiral channel, each being coupled to an exhaust gas line of an exhaust gas tract of the internal combustion engine for conducting exhaust gas to a turbine wheel arranged within the turbine housing and driving a compressor wheel of a compressor of the exhaust gas turbocharger, an area ratio Q_g of the turbine corresponds to the formula Q_g=(A_λ+A_AGR)/A_R>0.40, wherein A_λ refers to a narrowest flow cross-section of the first spiral channel, A_AGR to a narrowest flow cross-section of the second spiral channel (52b) and A_R to a wheel exit flow cross-section of the turbine exhaust channel. The invention further relates to a motor vehicle with an internal combustion engine and such an exhaust gas turbocharger.

A quench zone mixing apparatus that occupies a low vertical height and has an improved mixing efficiency and fluid distribution across the catalyst surface includes a swirl chamber, a rough distribution network, and a distribution apparatus. In the swirl chamber, reactant fluid from a catalyst bed above is thoroughly mixed with a quench fluid by a swirling action. The mixed fluids exit the swirl chamber through an aperture to the rough distribution system where the fluids are radially distributed outward across the vessel to the distribution apparatus. The distribution apparatus includes a plate with a number of bubble caps and associated drip trays that multiply the liquid drip stream from the bubble caps to further symmetrically distribute the fluids across the catalyst surface. Alternatively, deflector baffles may be associated with the bubble caps to provide a wider and more uniform liquid distribution below the plate. The distribution apparatus can be used in the reaction vessel without the swirl chamber and rough distribution system, e.g., at the top of a vessel.

A magneto-electrohydraulic power steering system for a vehicle includes a magneto-electrohydraulic power steering pump interconnecting a power steering gear of the vehicle and a drive shaft of an engine of the vehicle. The magneto-electrohydraulic power steering system also includes a controller operatively connected to the magneto-electrohydraulic power steering pump to generate a current signal to vary a speed of the magneto-electrohydraulic power steering pump.

A method and system to detect currents in the saturation region of a current transformer for a circuit breaker is disclosed. An example method is sensing a fault condition with a current transformer in a circuit breaker. The characteristic curve of the current transformer in a saturation mode is determined based on peak current. A current is received on the transformer. A secondary current is output from the transformer. It is determined whether the secondary current is indicative of a fault current in the saturation mode of the transformer. The breaker is tripped if the secondary current is indicative of a fault current.

A Hall-type ion source for generation of ion beams for technological applications presents itself a hybrid ion source, where properties of closed drift systems and end-Hall ion sources are combined for more efficient operation. An ion source has shorter central magnetic pole than regular closed drift ion source with magnetic screens that provide positive magnetic gradient in an ion source's discharge channel. An ion source with these combined properties has higher ratio of ion beam current to discharge current than end-Hall ion source and wider range of discharge parameters than closed drift ion source.