402results about How to "Reliable limit" patented technology

The present invention provides a fuel feeding apparatus and method for improving the controllability of mixing process and mixing ratio of fuel and combustion air, and a combustion system and method for effecting new combustion properties. The fuel feeding apparatus of the combustion system has fuel feeding means, combustion gas extraction means, steam supply means, mixing means and fuel gas introduction means. The combustion gas extraction means extracts combustion gas of a combustion area therefrom. The mixing means mixes the fuel of fuel feeding means with at least one of combustion gas extracted from the furnace and steam of a steam generator. The fuel gas introduction means introduces a mixed fluid of combustion gas, steam and fuel to the combustion area as a fuel gas, and allows the fuel gas to be mixed with the combustion air. A step of mixing the fuel with the combustion gas after extracted from the furnace and a step of mixing the fuel gas with the combustion air are stepwisely carried out, so that the controllability of mixing process and ratio of the air and fuel is improved. Such a control of fuel gas flow enables control of characteristics of flame and production of flame with new properties in the combustion area.

A method for determining a helical groove structure, for example in the form of flutes, in the surface of a finely finished cylindrical workpiece, in particular the ground mating bearing surface of radial shaft sealing rings, which is characterized in that a camera is used to record at least one image of the illuminated surface of the workpiece, which image reproduces the helical groove structure in the surface of the workpiece. A device for carrying out a method includes a CCD camera with a macrolens, a radial bearing device for the workpiece, an illuminating device and an image reading and image processing device.

A compact and efficient ultraviolet laser source based on a optically-pumped solid-state or fiber laser that produces near-infrared output light suitable for nonlinear frequency conversion. The infrared laser output is frequency tripled or quadrupled to produce light in the ultraviolet wavelength range (200 nm to 400 nm). The novel technology is the use of highly efficient periodically poled nonlinear crystals, such as stoichiometric and MgO-doped lithium tantalate and lithium niobate. As opposed to conventional frequency-converted UV laser sources, which have high power consumption, high cost, and low efficiency, the laser sources of this invention utilize high efficiency nonlinear conversion provided by periodically poled materials and allow lower-cost architectures without additional focusing lenses, high power pump diodes, etc.

Free-space optical (FSO) laser communication systems offer exceptionally wide-bandwidth, secure connections between platforms that cannot other wise be connected via physical means such as optical fiber or cable. However, FSO links are subject to strong channel fading due to atmospheric turbulence and beam pointing errors, limiting practical performance and reliability. We have developed a fade-tolerant architecture based on forward error correcting codes (FECs) combined with delayed, redundant, sub-channels. This redundancy is made feasible though dense wavelength division multiplexing (WDM) and / or high-order M-ary modulation. Experiments and simulations show that error-free communications is feasible even when faced with fades that are tens of milliseconds long. We describe plans for practical implementation of a complete system operating at 2.5 Gbps.

A set standard sample is identified, and a quality control material relevant to a reagent requested by the standard sample and stored in a buffer is fed automatically to an analyzer module. The measurement of the quality control material is performed immediately after the measurement of the standard sample for the reagent. A warning signal is generated to prompt the operator to replenish the quality control material when it is decided from the amount of the residual quality control material stored in the buffer that the quality control material is insufficient.

Free-space optical (FSO) laser communication systems offer exceptionally wide-bandwidth, secure connections between platforms that cannot other wise be connected via physical means such as optical fiber or cable. However, FSO links are subject to strong channel fading due to atmospheric turbulence and beam pointing errors, limiting practical performance and reliability. We have developed a fade-tolerant architecture based on forward error correcting codes (FECs) combined with delayed, redundant, sub-channels. This redundancy is made feasible though dense wavelength division multiplexing (WDM) and / or high-order M-ary modulation. Experiments and simulations show that error-free communications is feasible even when faced with fades that are tens of milliseconds long. We describe plans for practical implementation of a complete system operating at 2.5 Gbps.

A system for effective NOx control in a diesel or other lean burn internal combustion engine is presented. The system includes a urea-based SCR catalyst having an oxidation catalyst coupled upstream of it and an ALNC coupled upstream of the oxidation catalyst. This system configuration results in improved NOx conversion due to faster SCR catalyst warm-up and higher operating temperatures. Additionally, placing the ALNC upstream of the oxidation catalyst prevents hydrocarbon slip into the SCR catalyst at low exhaust gas temperatures. Also, system reliability is improved by adding an auxiliary NOx aftertreatment device.

Provided is a fuel cell system that can suitably control a voltage converter in response to a judgment that an abnormal condition occurs in a power detection unit that detects a power passing through the voltage converter. The fuel cell system has: a first power detection unit that estimates an effective value of a converter input power by multiplying the converter input power, which is obtained from a battery voltage and a battery current, by a converter efficiency; a second power detection unit that estimates a converter output power from a fuel cell voltage, a fuel cell current and a driving motor load power; and a third power detection unit that estimates a converter flowing power from a current of a reactor measured by a current sensor (shown in a separate drawing). The fuel cell system also has similar detection units for current, and using one of the detection units or a combination of some of them, specifies a malfunctioning sensor and prohibits correction of parameters.

In the first power mode: each packet processor of the second group maintains own operating mode in a first operating mode of relatively low power consumption; and the distributor selects the handling packet processor from the first group for the first priority, and selects the handling packet processor from at least one group excluding the second group for the second priority.In the second power mode: each packet processor of the second group maintains the own operating mode in a second operating mode of relatively high power consumption; and the distributor selects the handling packet processor from the first group for the first priority, and selects the handling packet processor from at least one group including the second group for the second priority.

In a drive train for a motor vehicle with an internal combustion engine and a serial hybrid drive and a method for operating a motor vehicle with such a drive train, wherein the driving performance is increased and the fuel consumption of the internal combustion engine is reduced, and the drive shaft of the internal combustion engine is connected to a first electrical machine, and a second electrical machine is connected to a drive wheel of the motor vehicle, an electrical energy accumulator to which electrical energy can be supplied by the first and second first electrical machines and which can supply electrical energy to the first and second electrical machine is provided together with a control unit for dividing the power between the electrical energy accumulator and the first electrical machine, the rotational speed (n) of the first electrical machine and the power of the internal combustion engine are controlled depending on vehicle operating conditions and energy accumulator states selectively for high fuel efficiency or low emissions.

The systems and method may include receiving a plurality of measured tuning inputs associated with an operating parameter of an engine, providing a plurality of parameter estimation modules that utilize one or more component performance maps having adjustable knobs to generate model outputs, where each parameter estimation module is configured independently of a respective one of the operating parameters of the engine, and where each parameter estimation module generates the model outputs based upon fundamental inputs associated with the engine. The systems and methods may further include calculating residual values for each parameter estimation module, adjusting knobs of each parameter estimation module, and determining that a sensor associated with a measured tuning input or a fundamental input is faulty based at least in part upon values of the knobs and residual values.

Three example inverter designs are described that can be tailored to drive from one to dozens of lamps of a backlight for a liquid crystal display. For each design the lamps are driven by a 40 kHz to 60 kHz sine wave. The lamp voltage is ˜1200V to “strike” the lamps and ˜600V to produce the optimal 5 mA in each lamp. The designs are: a Royer linear oscillator driven by a buck converter stage, a push-pull inverter that drives the high voltage transformer directly, and a class-D amplifier that produces the drive sine wave using a pulse width modulation technique.

A power conversion system according to the present invention includes: an inverter circuit unit that converts a direct current power supplied from a direct current source into an alternating current power, the direct current power being supplied to the inverter circuit through a contactor that conducts and interrupts the direct current; a capacitor that smoothes the direct current power; a discharge circuit unit that is connected to the capacitor in parallel, and that includes a discharge resistor for discharging a charge stored in the capacitor and a switching element for the discharge resistor, being connected in series to the discharge resistor; a voltage detection circuit unit that detects voltage between both terminals of the capacitor; a first discharge control circuit that includes a first microcomputer, and that outputs a control signal to control switching of the switching element for discharging; and a second discharge control circuit that outputs an interruption signal to interrupt the switching element for the discharge resistor.

The first relaying device uses the first port (the second relaying device) for the first priority in the first selecting mode, and uses a port other than the second port (the third relaying device) for the second priority. The first relaying device uses the first port for the first priority and uses the second port for the second priority, in the second selecting mode. In a case where the selecting mode is the first selecting mode, the power mode of the third relaying device is the first power mode wherein the power consumption is relatively small. In a case where the selecting mode is the second selecting mode, the power mode of the third relaying device is the second power mode wherein the power consumption is relatively high.

This invention is related to process for the production of a interior trim piece, comprising the steps of: —providing a film layer—applying conductive ink / paint to the back surface of the film layer to provide a circuit path and—attaching a substrate on the back surface of the film layer. This invention further relates to a interior trim piece comprising a film layer with a circuit path on its back surface, whereas the circuit path is made from conductive ink / paint.

The invention provides a detachable drawer slide, comprising a supporting seat, an outer slide, an inner slide and a locking mechanism. The drawer slide is characterized in that the locking mechanism comprises a reed; wherein one end of the reed is a fixed end connected with a web plate of the inner slide, while the other end is an elastic movable end which is raised towards one side of the outer slide; the movable end is provided with a through hole; the outer slide is provided with a stop lug raising towards the reed on the web plate; the stop lug can be received in the through hole to prevent the inner slide from separating from the outer slide. Compared with the prior art, the drawer slide uses the reed instead of the prior elastic strip structure to ensure that the drawer can be separated from the slide only through lightly pressing the elastic movable end of the reed by the first finger, is in accordance with the characteristic of finger force application of a human body, and has the advantages of easy and convenient operation; and the finger need not put into the groove of the outer slide, and can not adhere to stains on the slide. The drawer slide is sanitary and clean for use, has uneasily deformed metal reed, long service life, and safer and more reliable limit.

A method, an apparatus, and a system for Coordinated Multi-Point (CoMP) transmission are provided, which can effectively improve the transmission reliability over the control channel and flexibility of the application. The method includes: allocating different resources to a control channel carrying coordination information and a data channel, and performing CoMP transmission over the control channel and the data channel by using the allocated different resources. The technical solutions provided in the present invention are applicable to an Orthogonal Frequency Division Multiplexing (OFDM) system, a Code Division Multiple Access (CDMA) system, a Time Division Multiple Access (TDMA) system, or other mobile communication systems.

Disclosed are a transmission device and method, and a receiving device and method of control information by a terminal in a multi-component carrier system. The present invention provides the method comprising: receiving on a component carrier a PDCCH that explicitly indicates a resource index of a PUCCH; receiving on said component carrier a PDSCH that is indicated by said PDCCH; calculating a cyclic shift sequence and an orthogonal sequence on the basis of said resource index; spreading to said cyclic shift sequence and said orthogonal sequence an ACK / NACK signal that indicates successful reception or unsuccessful reception of said PDSCH; mapping said spread ACK / NACK signal into said PUCCH; and transmitting said PUCCH to a base station. The invention can resolve the problem of resource indexes of uplink control channels colliding with each other. Thus, reliability of the transmission of control information is improved.

This system connects groups of end-devices at two or more automated oil or gas production wellheads or groups of end-devices at two or more associated wellhead facilities so that such associated end devices may be wirelessly monitored and measured during wellhead production, and then wirelessly controlled by one or more master remote terminal / telemetry unit MRTU. Each MRTU is in turn in communication with and controlled by a host computer system. Such measurement and control of the end devices is accomplished through slave remote terminal / telemetry units SRTUs which are connected to and capable of communications with associated end-devices. Each SRTU is in turn connected to one or more local area network LAN communication system, each of which LAN is in turn connected, by hard wire or wirelessly, to a wide area network WAN transmitter. Each WAN is in wireless communication with a host computer.

A method for changing a force control gain expressed as a ratio of force error to velocity command value in a control circuit performing a force control of a servo motor driving a die cushion disposed opposite to a slide in a press machine. The method includes: obtaining a difference between a displacement of the slide and a displacement of the die cushion in a state in which the slide and the die cushion collide with and are exerting force on each other; detecting the force when the difference of the displacements is obtained; calculating a spring constant of a structural portion based on a proportionality between the difference of the displacements and the force, when regarding the structural portion including the slide and the die cushion as an elastic structure; and changing the force control gain based on the spring constant using a fixed proportionality that exists between the force control gain and a reciprocal of the spring constant.

The invention provides a submersible sewage pump for sewage treatment of a paper making factory. According to the submersible sewage pump, the technical problems that an existing submersible sewage pump is simple in cutting mode, cannot cut sewage in a pump body multiply and is poor in cutting capability and cutting effect are solved. The submersible sewage pump for sewage treatment of the paper making factory comprises a worktable. A floating and sinking mechanism capable of adjusting the water level height of the worktable is arranged on the worktable, a balancing mechanism capable of maintaining the stability of the worktable is arranged on the worktable, and a mounting seat is fixed to the worktable. A submersible sewage pump body is arranged on the mounting seat and comprises a pump main body, a submersible motor, a base and a side cover. The pump main body is provided with a water inlet and a water outlet, the water inlet is formed in the lower end of the pump main body, a waterinlet filter mechanism communicating with the water inlet is arranged at the water inlet, the water outlet is formed in the side of the pump main body, and a water outlet filter mechanism communicating with the water outlet is arranged at the water outlet. The submersible sewage pump for sewage treatment of the paper making factory has the characteristic of being good in cutting effect.

In a voltage controller for a vehicle, voltage controlling means controls an output voltage of a power generator mounted on the vehicle and a terminal voltage of a battery connected to the power generator, by controlling of a field current passing through a field winding of the power generator. This control is performed by operating switching means connected to the field winding so that the switching means is conducted intermittently. Signal generating means generates a power generator state signal by measuring a state of the power generator at predetermined measurement periods. Signal averaging means performs an exponentially weighted averaging of the power generator state signal. The signal averaging means executes the averaging within a predetermined averaging period and updates the averaging at every predetermined measurement period.

The present invention is drawn to an electrical connecting device for rechargeable electrochemical energy storage systems, comprising at least two parallel strings, wherein each of the strings have at least two single cells in series. The electrical connecting device provides at least one non-terminal inter-string connection for the purpose of voltage equilibration between series-connected cells or units of cells of the same nominal voltage in parallel strings. The non-terminal inter-string connection may comprise a current-limiting element. A formula is provided for the characteristics of the current-limiting element, depending on voltage and capacity of the units within the electrochemical storage system. The device is based on low-cost electrical components. It decreases voltage differences between sub-units in different parallel strings and increases the reliability and cycle life of any rechargeable electrochemical energy storage system based on series and parallel connections. The device can be used in a modular way for a storage system of any size and complexity.

A metal oxide semiconductor gas sensor S is connected to a ladder resistance R, and the output voltage is subjected to logarithmic transformation at plural points on a waveform of temperature change by LnR=2-4 V R1 / Vc+LnR1 (1) where R indicating the resistance of the metal oxide semiconductor, V R1 the output voltage to the ladder resistance, Vc the detecting voltage, R1 the resistance of the ladder resistance, and Ln natural logarithm, respectively. Standard signals comprising logarithms of resistance values of the metal oxide semiconductor in plural concentrations and at plural points on the waveform are stored in the EEPROM, and these standard signals and logarithms obtained are compared with each other to detect the gas.

A vehicle control device includes a terminal device authentication unit configured to determine whether a terminal device of a user registered as a user of a vehicle in advance is present around or within the vehicle, a communication unit configured to communicate with the terminal device, and a control unit configured to cause a display device provided in the vehicle to output a screen for setting communication between the communication unit and the terminal device in a case where it is determined by the terminal device authentication unit that the terminal device is present and the display device is started up.