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72results about How to "Self-contained" patented technology

Pyrotechnic linear inflator

An airbag inflator (10) including an elongated outer housing (12) having an interior and one or more orifices (22) formed therealong to enable fluid communication between the outer housing interior and an exterior of the outer housing (12). The outer housing orifice(s) (22) open from the outer housing interior toward a first side (F) of the inflator. An elongated inner housing (14) is positioned in the outer housing interior. The inner housing (14) has an interior and one or more orifices (20) formed therealong to enable fluid communication between the inner housing interior and an exterior of the inner housing (14). The inner housing orifice(s) (20) open from the inner housing interior toward a second side (S) of the inflator. A quantity of a gas generant composition (16) extends along a portion of the interior of the inner housing (14). The gas generant (16) has a substantially “C”-shaped cross-section with a slot (24) extending along the length of the gas generant (16). The gas generant slot (24) is oriented facing the inner housing orifice(s) (20). A filter (15) is positioned intermediate the inner housing orifice(s) (20) and the outer housing orifice(s) (22) for filtering combustion products generated by combustion of the gas generant composition (16). An igniter (40) is operatively coupled to the gas generant composition (16) so as to enable fluid communication between the igniter (40) and the gas generant composition (16) upon activation of the inflator (10). The slotted, “C”-shaped cross section of the gas generant (16) provides a greater exposed gas generant surface area than would be achievable without the slot (24). This enhances the ignition and burning of the gas generant composition (16) upon inflator activation.
Owner:AUTOMOTIVE SYST LAB

Process and Apparatus for Upgrading Steam Cracker Tar-Containing Effluent Using Steam

A process and apparatus are provided for the present invention relates to a process for upgrading tar-containing effluent from a steam cracker furnace that comprises: a) contacting a steam cracker tar-containing effluent with steam and for a time, sufficient to convert at least a portion of the steam cracker tar to a mixture comprising lower boiling molecules and the steam cracker tar-containing effluent; and b) separating the mixture from step a) into i) at least one tar-lean product; and ii) a tar-rich product having a final boiling above the final boiling point of the at least one tar-lean product. Step a) can includes at least one of: 1) contacting said steam cracker tar-containing effluent with steam added to the effluent in a transfer line downstream of a steam cracker furnace comprising a quench inlet, with the steam added through or downstream of the quench inlet; 2) contacting the steam cracker tar-containing effluent with steam under heat soaking conditions in a heat soaking vessel to which the steam is added; and 3) contacting the steam cracker tar-containing effluent with steam under visbreaking conditions in a visbreaker. The steam treated tar can be separated into higher value gas oil, fuel oil and tar streams.
Owner:EXXONMOBIL CHEM PAT INC

Power distribution network intelligent sensor fusing gateway function and fault detection algorithm

The invention provides a power distribution network intelligent sensor fusing a gateway function and a fault detection algorithm. The power distribution network intelligent sensor comprises a first collection unit, a second collection unit and a collection and summarizing integrated unit, wherein the first collection unit, the second collection unit and the collection and summarizing integrated unit are installed on three phase lines respectively; the first collection unit and the second collection unit are used for collecting fault recording data of the corresponding phase lines; the collection and summarizing integrated unit is used for collecting fault recording data of the corresponding phase line, collecting the fault recording data of the other two phase lines and performing summarizing processing on the collected fault recording data of the three phase lines for fault detection; and the collection and summarizing integrated unit is also used for sending the collected fault recording data of the three phase lines to a monitoring master station for fault detection. Through the power distribution network intelligent sensor, precise sensing of voltages, currents and other parameters can be realized, and the sensor has the advantages of self-energy-taking and low power consumption; and moreover, the sensor fuses the gateway function and can realize remote transmission and sharing of line monitoring information autonomously without the need for relying on a communication terminal, and therefore working stability and reliability are improved.
Owner:北京三清互联科技股份有限公司

Heading machine positioning method and system based on inertial navigation and laser radar single-point distance measurement

ActiveCN111637888AHigh precision positioning and orientationNot susceptible to interference positioningNavigational calculation instrumentsNavigation by speed/acceleration measurementsComputer visionEngineering
The invention discloses a heading machine positioning method based on inertial navigation and laser radar single-point distance measurement. The method comprises the following steps: a laser radar isused for scanning a tunneling reference surface, wherein a control point exists on the reference surface, coordinates of the control points are known, the distance from the control point to the laserradar is solved, and the distance is converted to a navigation coordinate system by using a mounting error matrix between a heading machine and the laser radar and an attitude matrix provided by an inertial navigation system so as to obtain the position of the heading machine; the value is fused with position information provided by inertial navigation by using a Kalman filter so as to obtain high-precision position information. The positioning method can meet the long-time high-precision positioning and orientating requirements for the heading machine, and has the advantages of passive measurement, capability of establishing an own system, low possibility of interference and accurate positioning. Meanwhile, the invention further discloses a heading machine positioning system based on theinertial navigation and the laser radar single-point distance measurement.
Owner:CENT SOUTH UNIV

Flexible grounding mode power distribution network grounding fault direction algorithm

PendingCN111537838AImprove reliabilityHigh tolerance transition resistance capabilityGeometric CADFault location by conductor typesFault indicatorAlgorithm
The invention discloses a flexible grounding mode power distribution network grounding fault direction algorithm. The direction of a detection point relative to a grounding fault point is judged by utilizing the ratio of a zero-sequence measurement admittance module value before parallel resistor input to a zero-sequence measurement admittance module value after parallel resistor input at a detection point. According to the method, the fault information of the whole process before and after parallel resistor input is utilized, and when the transition resistance is relatively high, a method ofgiving the zero sequence voltage is adopted, so that the reliability of a judgment result during high-resistance grounding is improved; the method has self-ownership; the device can judge the fault direction only by utilizing the information of the position of the device; for a line with a distribution automation system, terminals simply need to upload the fault direction information; the communication pressure is small, and the matching is convenient; the terminals do not need to be subjected to accurate synchronous time synchronization; and for a distribution line without a communication condition, a fault can be removed or a fault indicator can be installed in a multistage protection time-delay cooperation mode so that line patrol efficiency is improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
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