178results about How to "Avoid excessive loads" patented technology

The invention relates to a shoe having a sole element. The sole element includes a sole area extending below a wearer's foot and a heel cup three-dimensionally encompassing a heel of the wearer's foot. The heel cup alone forms at least a portion of a sidewall of the shoe.

A work piece pickup method is for sucking and holding a work piece attached on an adhesive sheet by means of a suction collet that is disposed above the work piece attached on the adhesive sheet in such a way as to be movable up and down for sucking and holding the work piece and a suction member that is disposed below the adhesive sheet in such a way as to be movable up and down so as to detach and transfer the work piece. The method comprises a sheet suction process for sucking and holding a lower surface of the adhesive sheet corresponding to the work piece by the suction member, and a work piece suction process for sucking and holding the work piece by the suction collet under a state in which the suction collet and the work piece are in a positional relationship spaced from each other so as to detach the work piece. A pickup apparatus and a mounting machine operate in accordance with the above method.

A method for controlling a converter of a wind energy installation. The converter is connected to a rotor of a doubly-fed asynchronous generator for feeding electrical power into an electrical grid and comprises a generator-side inverter, a grid-side inverter, and at least one converter regulator for regulating and / or controlling currents emitted from at least one of the inverters to at least one of the generator and the electrical grid. The method includes detecting a change in electrical voltage present in at least one of emitted real currents and emitted reactive currents at one of the inverters, determining whether the detected change corresponds to a predetermined change, and changing nominal values of at least one of real currents to be emitted and reactive currents to be emitted from the other inverter if the detected change corresponds to the predetermined change.

Systems and methods for preventing excessive loading on a wind turbine are disclosed. The method includes: measuring an actual wind parameter upwind from the wind turbine using one or more sensors; providing the measured wind parameter to a processor; providing a plurality of wind turbine operating data to the processor; utilizing the plurality of operating data to determine an estimated wind turbine condition at the wind turbine; generating a control wind profile based on the actual wind parameter and the estimated wind turbine condition; and, implementing a control action based on the control wind profile to prevent excessive loading from acting on the wind turbine.

A semiconductor device connecting structure for connecting a semiconductor IC 7 onto a substrate 13. A bonding layer 31 is placed between the substrate 13 and the semiconductor IC 7 to accomplish adhesion therein. This bonding layer includes an ACF 32 as a bonding material for joining said semiconductor IC 7 onto said substrate 13 and a space 33 formed within the ACF 32. Even if the IC 7 deforms due to heat or the like, the deformation is absorbed by the space a 33, whereupon the connecting conditions of bumps 28, 29 can not be unstable.

A telescopic shaft for vehicle steering that is assembled into a steering shaft for a vehicle and has a female shaft and a male shaft that are fitted relatively unrotatably but slidably, the telescopic shaft for vehicle steering includes torque transmitting portions that are respectively disposed on an outer surface of the male shaft and on an inner surface of the female shaft and come in contact with each other for transmitting torque upon rotation, and a preload portion composed of a rolling member that is disposed between the outer surface of the male shaft and the inner surface of the female shaft at a different position from a position where the torque transmitting portions are located and rolls when the male shaft and the female shaft relatively move in the axial direction and an elastic member that is disposed adjacent to the rolling member in the diametral direction and gives pressure upon the male shaft and the female shaft through the rolling member, wherein when a gap in the torque transmitting portions is converted into a rotation angle A and a possible flexural amount of the elastic member in the preload portion is converted into a rotation angle B, the rotation angle A should be less than the rotation angle B upon transmitting no torque.

An architecture for a hybrid power plant for driving a rotorcraft rotor (1). The rotorcraft is fitted with an electrical energy distribution network (17) for distributing electrical energy from a management network (20) that is interposed between the distribution network (17) and electrical energy sources (4, 9, 10). A management computer (21) takes account of information about the working of a combustion engine (3) for driving the rotor (1), about the working of the electrical energy sources (4, 9, 10) fitted to the rotorcraft and including an energy store (9), a reversible electric machine (4), and an electricity generator (10) engaged with the combustion engine, and about the electrical energy needs of the electricity distribution network (17). Electrical energy is distributed selectively by the management computer (21) via the management circuit (20) and to the distribution circuit (17) depending on priorities of maintaining safe flight of the rotorcraft and providing drive assistance to the engine (3) as produced by the reversible electric machine (4).

The external material clamp comprises the fixed plate fixed to the foundation of the wall of the building, the horizontal plate extending forwardly from the center of the fixed plate, the upper support plate projected upwardly from the front end of the horizontal plate to support the upper side external wall with engagement, the lower support plate supporting the upper end of the external material 50 in the lower side with engagement, and the receiving plate at least a part of which is located above the horizontal plate to contact with the external material in the upper side with receiving a part of the load thereof. With this configuration, the load of the upper side external material is shared by the lower side external material and the receiving plate of the external material clamp.

A device for controlling a starting procedure of a motor vehicle for initiating a movement of the motor vehicle includes a controller which receives as input, signals generated by an engine shaft speed sensor, a driving speed sensor, a transmission shaft speed sensor, a transmission output shaft speed sensor, and an accelerator pedal position sensor. The controller is operatively connected to the engine for increasing the engine speed above a minimum threshold value when the driver signals his desire for a racing start. The controller is also operatively connected to a clutch activation device for deliberately producing a slip of the driving wheels and for controlling the slip of the driving wheels by controlling a slip of the clutch after a starting time point signaled by the driver.

A gas pressure-reducing valve includes a pressure-reducing chamber for generating a gas pressure that acts on one surface of a diaphragm, a valve body that can sit on a valve seat having in its central part a valve hole communicating with the pressure-reducing chamber, and a spring biasing the diaphragm in a direction that detaches the valve body from the valve seat. A valve housing is formed by conjoining a body, a partition, and a cover. The partition forms the pressure-reducing chamber between itself and the body and forms a pressure action chamber between itself and the diaphragm. The cover forms the spring chamber between itself and the other surface of the diaphragm and has the peripheral edge of the diaphragm clamped between itself and the partition. The partition has a through hole for allowing the valve stem to run through in an airtight and axially slidable manner and a communicating hole for providing communication between the pressure action chamber and the pressure-reducing chamber. The structure of the body can thus be simplified thereby enhancing the machining precision, and the diameter of the pressure-reducing chamber can be determined regardless of the diameter of the diaphragm.

A refrigerator capable of supercooling a target object and a control method thereof are provided. The refrigerator includes a temperature sensor which senses a temperature of the target object in the cooling compartment, wherein the temperature sensor is prevented from being in contact with ambient cool air and is installed on a bottom surface on which the target object is placed so as to sense only the temperature of the target object. Further, the control method includes sensing a temperature of the target object at each interval of a specified time Δt, calculating a difference between two temperatures sensed at specified time intervals, and comparing the difference between two temperatures with a predetermined reference value ΔTc to determine the supercooled state of the target object.

Systems and methods for preventing excessive loading on a wind turbine are disclosed. The method includes: measuring an actual wind parameter upwind from the wind turbine using one or more sensors; providing the measured wind parameter to a processor; providing a plurality of wind turbine operating data to the processor; utilizing the plurality of operating data to determine an estimated wind turbine condition at the wind turbine; generating a control wind profile based on the actual wind parameter and the estimated wind turbine condition; and, implementing a control action based on the control wind profile to prevent excessive loading from acting on the wind turbine.

The expected power to be output from a synchronous motor is obtained based on a torque command value and revolution speed of the motor. Meanwhile electric power consumption is detected based on voltage and current actually applied to the motor. If a parameter derived from a deviation or a ratio of the two exceeds a predetermined threshold value, it is determined that step-out has occurred. When using the deviation of the expected power from the electric power consumption as the parameter, the threshold value is determined in relation to the torque command value and the revolution speed. When using the ratio of the expected power and the electric power consumption as the parameter, the threshold value is set in relation to the revolution speed. This enables step-out to be accurately determined with an extremely light computational load.