Abstract: A vehicle door opening and closing control system may include an antenna provided at a vehicle, the antenna being configured to wirelessly communicate with a user's mobile device to recognize the location of the user's mobile device, a door opening and closing device configured to open or close a door of the vehicle, a rain sensor configured to detect a rainy weather state outside the vehicle, and a controller configured to control the operation of the door opening and closing device based on the location of the mobile device recognized by the antenna or the rainy weather state outside the vehicle detected by the rain sensor.

Abstract: A vehicle door opening and closing control system may include an antenna provided at a vehicle, the antenna being configured to wirelessly communicate with a user's mobile device to recognize the location of the user's mobile device, a door opening and closing device configured to open or close a door of the vehicle, a rain sensor configured to detect a rainy weather state outside the vehicle, and a controller configured to control the operation of the door opening and closing device based on the location of the mobile device recognized by the antenna or the rainy weather state outside the vehicle detected by the rain sensor.

Abstract: A door glass assembly is configured to reduce an impact noise generated when a door glass is moved upward/downward and may include a carrier plate coupled to a glass holder to which a door glass of a vehicle is secured. The carrier plate is installed inside a door of the vehicle so as to be movable upward/downward. A module plate, on which the carrier plate is installed so as to be movable upward/downward, is installed inside the door of the vehicle. A driving motor is provided to move the carrier plate upward/downward. The module plate and the carrier plate are provided with an impact noise preventing means for gradually decelerating and stopping the carrier plate when the door glass is being maximally moved upward or downward.

Abstract: An apparatus for varying the transparency of a window glass can include: a window glass having a film with variable transparency; a pair of electrodes connected to the film; a controller mounted on a vehicle door of a vehicle, the controller controlling a wireless transfer of power for adjusting the transparency of the film; and a wireless power receiver mounted on the window glass, the wireless power receiver wirelessly receiving the power from the controller. The wireless power receiver can apply the power wirelessly received from the controller to the pair of electrodes.

Abstract: A wireless power transfer system for a vehicle door glass includes: a door glass having an electric load, and a pair of electrodes connected to the electric load; a power transmitter mounted in a vehicle door, and wirelessly transmitting power of a battery; and a power receiver embedded in the door glass, and wirelessly receiving the power from the power transmitter, wherein the power receiver applies the power received from the power transmitter to the pair of electrodes of the door glass.

Abstract: A fan blade having an opening on one side exposing one or more cavities, and a composite cover that fits over the opening, is provided. The composite cover has a variable thickness resulting from the layering of cover plies having different shapes, and is designed to achieve a lightweight fan blade having an optimal level of stiffness.

Abstract: A fan blade includes a blade body, a composite segment and a cover. The blade body extends from a blade root to an opposed blade tip along a longitudinal axis. The blade body defines a leading edge and a trailing edge. A first airfoil surface extends from the leading edge to the trailing edge. A pocket is defined between the leading edge, the trailing edge, the blade root and the blade tip. The pocket has a bottom surface that opposes the first airfoil surface across the blade body. The composite segment is disposed in the pocket. The cover is mounted to the composite segment and to the blade body to form a second airfoil surface opposed to the first airfoil surface.

Abstract: A wireless power transfer system for a vehicle door glass includes: a door glass having an electric load, and a pair of electrodes connected to the electric load; a power transmitter mounted in a vehicle door, and wirelessly transmitting power of a battery; and a power receiver embedded in the door glass, and wirelessly receiving the power from the power transmitter, wherein the power receiver applies the power received from the power transmitter to the pair of electrodes of the door glass.

Abstract: A door glass assembly is configured to reduce an impact noise generated when a door glass is moved upward/downward and may include a carrier plate coupled to a glass holder to which a door glass of a vehicle is secured. The carrier plate is installed inside a door of the vehicle so as to be movable upward/downward. A module plate, on which the carrier plate is installed so as to be movable upward/downward, is installed inside the door of the vehicle. A driving motor is provided to move the carrier plate upward/downward. The module plate and the carrier plate are provided with an impact noise preventing means for gradually decelerating and stopping the carrier plate when the door glass is being maximally moved upward or downward.

Abstract: A wireless power transfer system for a vehicle door glass may include a power transmitter including a first converter converting DC power from a battery into AC power, a transmitting coil wirelessly transmitting the AC power received from the first converter, and a transmitter controller controlling a power level to be output from the first converter; and a power receiver including a receiving coil wirelessly receiving the AC power from the transmitting coil, a second converter and a third converter connected to the receiving coil, and a receiver controller controlling a power level to be output from the second converter and the third converter, wherein the power transmitter is mounted on a vehicle door, and the power receiver is mounted on a door glass.

Abstract: A wireless power transfer system for a vehicle door glass may include a power transmitter including a first converter converting DC power from a battery into AC power, a transmitting coil wirelessly transmitting the AC power received from the first converter, and a transmitter controller controlling a power level to be output from the first converter; and a power receiver including a receiving coil wirelessly receiving the AC power from the transmitting coil, a second converter and a third converter connected to the receiving coil, and a receiver controller controlling a power level to be output from the second converter and the third converter, wherein the power transmitter is mounted on a vehicle door, and the power receiver is mounted on a door glass.

Abstract: A blade assembly comprises a blade (120) and one or more wear pads (170, 172). The blade has an airfoil (122) having a leading edge (126), a trailing edge (128), a pressure side (130), a suction side (132), and extending from an inboard end to a tip (125). The blade further includes an attachment root (124). The one or more wear pads are along the attachment root. The one or more wear pads have a plurality of slits (228, 230 242).

Abstract: A fan blade has a blade body, a composite rib and a cover. The blade body extends from a blade root to an opposed blade tip along a longitudinal axis. The blade body defines a leading edge and a trailing edge. A first airfoil surface extends from the leading edge to the trailing edge A pocket is defined between the leading edge, the trailing edge, the blade root, and the blade tip. The pocket has a bottom surface that opposes the first airfoil surface across the blade body. The composite rib is disposed in the pocket. The cover is mounted to the composite rib and the blade body to form a second airfoil surface opposed to the first airfoil surface.

Abstract: An apparatus for varying the transparency of a window glass can include: a window glass having a film with variable transparency; a pair of electrodes connected to the film; a controller mounted on a vehicle door of a vehicle, the controller controlling a wireless transfer of power for adjusting the transparency of the film; and a wireless power receiver mounted on the window glass, the wireless power receiver wirelessly receiving the power from the controller. The wireless power receiver can apply the power wirelessly received from the controller to the pair of electrodes.

Abstract: The present disclosure relates generally to a cover for a fan blade. The cover encloses a hollowed portion formed in the fan blade and includes at least one extending portion that wraps around at least one of a trailing edge, a leading edge, and a root of the fan blade.

Abstract: Hollow fan blades for gas turbine engines are disclosed. The hollow fan blades include a body having a convex side and a concave side wherein the convex side has a cavity formed therein. The cavity is covered by two covers including an inner cover that may be adhered to the body of the fan blade assembly and an outer cover that may be adhered to the inner cover and/or the body of the fan blade assembly. The covers may be made of titanium, more than two covers may be employed and more than one cavity may be employed.

Abstract: A blade for use in a gas turbine engine has an airfoil and a dovetail. The airfoil extends radially outwardly of the dovetail. An inner surface of the dovetail includes a slot extending along a length of the dovetail between a leading edge and a trailing edge. A rotor and a gas turbine engine are also disclose.

Abstract: A fan blade for a turbofan gas turbine engine is disclosed. The fan blade includes a body having a pressure side and a suction side and a cover. The suction side of the body includes an opening exposing at least one cavity to reduce the weight of the fan blade. The cover overlays the opening and includes a leading portion and a trailing portion that are tapered in the direction of the cover leading edge and cover trailing edge.

Abstract: An airfoil includes a dovetail root having a base. A grooved slot is disposed in the base and a plurality of root lightening cavities is disposed in the grooved slot.

Abstract: A door holding device for a vehicle, may include a door handle having a first side disposed on a door base turnably and a second side in which a holder extending inwardly of the door base may be formed, a door lever hinged to the door base and having a guide that may be locked to the holder of the door handle so as to turn with the door handle, and a blocking lever disposed on the door base turnably by a hinge shaft and having a stopper formed to correspond to turning tracks of the holder of the door handle and the guide of the door lever.