120results about How to "Stable internal performance" patented technology

An inverted F antenna with integrated shield is constructed from an electrically conducting sheet that is folded into a shape that provides both a shield can covers an RF module of circuit and an inverted F antenna such that shield can functions also as a ground plane for the antenna. In a pre-folded state the sheet has a shield can portion and a radiating element portion that are connected to each other by a ground feed line that bridges the shield can portion and radiating element portion. The shield can portion preferably includes a plurality of walls that are foldable along respective folds. The radiating element portion preferably includes a plurality of edges and a signal feed line extending from a first one of the plurality of edges. The ground feed line extends from a second one of said plurality of edges. When the sheet is folded, the radiating element portion is suspended over the shield can portion and is substantially fixed with respect to the shield can portion by the ground feed line and the signal feed line.

Method for combustion engine control comprising an engine, at least one sensor and at least one engine control unit (200) arranged to control the engine (100) by the use of real time sensor data S(k) characterized in that a prior (P₁(k, j; z), P₂(k ; X, Y) is used to derive at least one combustion parameter estimate (X(k)) and/or al least one combustion parameter measurement (Y(k)) from the real lime sensor data (S(k)) and that the at least one combustion parameter estimate (X(k)) and/or the at least one combustion parameter measurement (Y(k)) is used in performing said engine control.

Processes for generating electricity using a solid oxide fuel cell are disclosed. The processes are controlled by adjusting the hourly spaced velocity of the hydrocarbon feed through the solid oxide fuel cell. Hydrocarbon fuel is transported at an hourly spaced velocity through a pre-reformer having a catalyst. The hydrocarbon fuel is contacted with the catalyst for a residence time and at a temperature such that a catalyzed hydrocarbon fuel is formed. The hourly spaced velocity determines the residence time of the hydrocarbon fuel in the pre-reformer. The resultant catalyzed hydrocarbon fuel contains at least one gas including one or more of hydrogen gas, methane gas, carbon monoxide gas, or combinations thereof The catalyzed hydrocarbon fuel is then contacted with an anode of a solid oxide fuel cell for a residence time to produce electricity.

The invention provides a process for manufacturing a high-strength (above) bolt. The process comprises the following steps: selecting a proper steel material, and cutting out a cylindrical blank with proper size; molding the head part and the rod part of the bolt by adopting cold extrusion technology; heating; manufacturing the rod part, including coarse grinding and fine grinding; detecting injury by magnetic powder; manufacturing screw; and performing surface mechanical reinforcement and corrosion resistance treatment. The process solves the technical problems of insufficient strength and fatigue fracture which are easily generated on the bolt existing in the prior art for manufacturing the high-strength bolt, and is a high-strength bolt manufacturing process capable of improving tensile and fatigue strength resistance of the bolt.

A composition comprises a sulphur free reaction product of: (a)(i) a hydrocarbyl substituted aromatic compound containing an acidic group selected from the group consisting of a carboxylic group, a hydroxyl group and mixtures thereof and (a)(ii) an organic nitrogen-containing base reacted with acidic group. The composition is obtained by a preparatory process and is useful in a method for lubricating an internal combustion engine to include where the lubricant has reduced levels of sulphur, phosphorus and sulphated ash.

The invention provided a gas generator for an air bag having any of the following members. A deflecting member is provided to suppress discharge of a combustion product generated by a combustion of gas generating means, and is formed as a tube portion to be capable of shielding a gas discharge port formed at least on a circumferential wall of a housing from the inside of the housing. A coolant/filter means supporting member can position a coolant/filter means, prevent a short pass of an operating gas, and functions as a buffer member between the coolant/filter and the housing, and/or prevent a heat from being transferred to a diffuser shell, and comprises an annular portion arranged to face an end surface of the housing and a wall portion contacting with an inner periphery of the coolant/filter means. Further, in order to make it possible to securely support and fix the coolant means and prevent the short pass of the operating gas, an outer peripheral edge of an end portion thereof is adhered and/or supported to a bent portion or a step portion formed in an inner surface of an upper end surface and/or an inner surface of a lower end portion in the housing. The coolant/filter means is formed in a cylindrical shape obtained by laminating a wire mesh. The housing for the gas generator securely fixes an igniter included in an ignition means, is preferably used at a time of manufacturing a gas generator having a restricted overall height, and has an opening portion for inserting and fixing the igniter or an igniter supporting member. The opening portion is provided with a connecting portion for fixing the inserted igniter or igniter supporting member, and the connecting portion is provided in inner side of the housing rather than the end surface having the opening portion.

An electronic device includes a processor, an internal memory for storing system information and installing programs, and a memory expansion interface for connecting an expansion memory. The expansion memory is partitioned into at least one region to expand the internal memory. The internal memory is partitioned into a system region and a user region; the system region is used to store system information while the user region can be controlled and used by a user. The processor further includes a detection unit and a memory management unit. The detection unit detects the connection of the expansion memory to the memory expansion interface, and the memory management unit determines whether the expansion memory has been previously configured to expand the internal memory, and if not, the memory management unit associates the expansion memory with the internal memory to expand the internal memory.

A method for operating an internal combustion engine in the event of a fault in a crankshaft sensor is provided, the internal combustion engine having at least two camshafts and a speed and/or a position of the internal combustion engine being derived from a signal taken from the camshaft. In order to improve the exhaust gas performance of the internal combustion engine even in a crankshaft emergency operating mode, only a first camshaft is used to determine the speed and/or the position of the internal combustion engine, while the second camshaft. is adjusted in its angle of rotation in order to set a variable valve operating mechanism on the intake and exhaust valves of the internal combustion engine that are driven by the second camshaft.

A valve timing control system for accelerating activation of a catalytic converter in an internal combustion engine in a cold starting operation mode. The system includes actuators (15, 16) coupled to cam shafts (15C, 16C), hydraulic pressure supply units (19, 20) for driving the actuators (15; 16), and a controller (21A) for controlling a hydraulic pressure for the actuators (15, 16) in dependence on engine operation states to change phase of the cam shafts (15C; 16C) relative to a crank shaft. The actuator (15; 16) includes a locking mechanism (155, 157) for setting the relative phase to a lock-up position, and an unlocking mechanism (156) for releasing the locking mechanism in response to a predetermined hydraulic pressure. The controller (21A) sets the relative phase to the lock-up position in a starting operation, while controlling the relative phase to be advanced in an engine state succeeding to the starting operation.

A system for converting an airflow into mechanical or electrical energy and dimensioned to be attachable to a structure. The system includes a leading edge member, a pair of drawtube arrays, and an energy conversion device located between the pair of drawtube arrays and configured to convert an airflow through the channel into mechanical or electrical energy.

A hollow poppet valve (10) is provided with an additional flange shape cavity (S1a), in addition to an ordinary valve head cavity (S1) formed in the valve head (14) of the valve (10) in communication with a valve stem cavity (S2) formed in a valve stem (12). A coolant (19) is loaded in the cavities to facilitate dissipation of heat out of the valve. This flange shape cavity (S1a) extends radially outwardly round a bottom portion of the valve head cavity (S1), extending close to a valve seat, thereby significantly facilitating heat transfer between the coolant (19) and the valve seat of the valve, yet, since the flange shape cavity (S1a) does not influences the thickness of other regions of the valve, it does not degrade durability of the valve.

The invention relates to an internal combustion engine, and a method for an internal combustion engine with at least one cylinder, at each of which at least one spark providing device for ignition being provided. The engine is operated, in connection to a start procedure of the engine, in a controlled self-ignition mode comprising at least one controlled combustion without spark ignition. The controlled combustion without spark ignition can comprise homogeneous charge compression ignition (HCCI). The invention will significantly reduce the risk of engine knocking at a hot start of the engine.

The invention discloses waterproof mortar taking inorganic minerals as main filler. The waterproof mortar is prepared from raw materials of components in percentage by weight as follows: 15%-45% of Portland cement, 1%-10% of attapulgite or modified attapulgite, 1%-7% of active aluminium salt, 0-3% of bentonite, 40%-70% of graded sand, 0.3%-1% of a thickening and moisturizing agent, 0.1%-1% of an early enhancer, 0-1.5% of a retarder and 0-10% of an active activator. The waterproof mortar has good waterproof and anti-seepage performance and is higher in early strength and good in weather resistance, and the later strength is also greatly improved.

The invention provides a machining process method of a large forge piece lifting hook. The machining process method comprises the following steps of 1, material selecting and blanking, 2, forging, 3,normalizing and high temperature tempering, 4, shell making, 5, thermal refining, 6, load testing, and 7, comprehensive inspecting and flaw detecting after load testing. The forge piece lifting hook prepared by the process can meet the overall load capacity and the internal quality of the lifting hook.

The invention relates to modification of aluminium profiles and in particular relates to a method for modifying an aluminium profile for buildings. The method comprises the steps of smelting aluminium ingots into molten aluminium, adding mixed powder of zirconium-coated titanium dioxide and zirconium-coated silicon dioxide, maintaining the materials at a melting temperature for 3-5 hours, pouring the materials into a mold with a temperature above 600 DEG C under the pressure of 1.1-1.5MPa, and cooling and insulating so as to obtain the aluminium profile through demolding; preparing a modifying agent from 20-40 parts of sodium fluoride, 30-60 parts of ammonium bifluoride, 10-20 parts of potassium permanganate, 40-50 parts of potassium chromate, 15-25 parts of zinc phosphate, 8-18 parts of sodium nitrate, 5-12 parts of praseodymium chloride, 10-16 parts of ethylenediamine tetraacetic acid, 7-14 parts of malic acid, 8-12 parts of sodium dodecyl benzene sulfate, 6-13 parts of nickel sulfate, 15-25 parts of triethanolamine, 5-10 parts of reducing agents containing alkali metals, 7-13 parts of chlorinated polypropylene or polyolefin substrate adhesion promoter and 500-900 parts of water by weight, and controlling the pH value to be 3-4, thus obtaining the modifying agent; dipping and drying twice to obtain a modified aluminium profile. The prepared aluminium profile is bright and soft, has excellent corrosion resistance and is safe and environment-friendly.