36results about How to "Relieve excessive stress" patented technology

A dispensing valve is provided for dispensing fluid products. The valve includes a marginal portion, a flexible valve head with a discharge orifice therein, and a flexible connector sleeve having one end connected with the marginal portion and the opposite end connected with the valve head adjacent a marginal edge thereof.

A pressure-activated server cooling system includes a server rack that houses one or more servers. The server rack has an interior plenum. A fan is coupled to the server rack that exhausts air from inside the plenum to outside the server rack. A differential pressure sensor collects pressure sensor data and a fan controller, which is operatively connected to the fan and the differential pressure sensor, activates the fan in response to the pressure sensor data. In some embodiments, the fan controller increases the speed of the fan when the pressure sensor data indicates greater than atmospheric pressure in the plenum.

A permanent magnet rotating electric machine includes a rotor and a stator. The rotor includes: a permanent magnet forming a single pole within a rotor core of the rotor, the permanent magnet being divided into two across a magnetic pole center and arranged such that the magnetic pole center and a magnetization direction of the permanent magnet extend in parallel with each other; a connecting portion assuming an electrical steel sheet disposed between the two divided permanent magnets; and magnet insertion holes in which the permanent magnets are inserted. In the rotor, the magnet insertion hole is shaped to include: air gaps at both end portions in a width direction of the permanent magnet, each air gap being formed between a surface of the permanent magnet extending perpendicularly to the magnetization direction and a surface of the electrical steel sheet facing the surface of the permanent magnet; a shoulder portion disposed on the facing surface, the shoulder portion having a length shorter than a thickness in the magnetization direction of the permanent magnet; and another air gap extending toward a rotor outside diameter side and the magnetic pole center side in a direction perpendicular to the shoulder portion on an outside of the shoulder portion.

A wellhead seal assembly that forms a metal-to-metal seal between inner and outer wellhead members. A metal seal ring has inner and outer legs that are threaded to each other and separated by a slot and provide bi-directional sealing. The threaded connection provides a pathway for annular pressure into the slot. The inner and outer legs have inner and outer walls, respectively Inner and outer legs have a soft metal inlay on their interior surfaces. Wickers may be located on the outer surface of the inner wellhead member and on the inner surface of the outer wellhead member. An energizing ring is moved into the slot to force the outer and inner walls of the seal into sealing engagement with the inner and outer wellhead members. The soft metal inlays deform onto the energizing ring. If present, wickers on the wellhead members embed into the walls of the seal ring.

A battery pack includes a core pack including a unit cell; a protection circuit module electrically connected to the core pack and including a switch contact portion; a frame accommodating the core pack and the protection circuit module; and a cover including a recessed portion covering at least a part of the core pack, facing the switch contact portion, and extending toward the protection circuit module.

An interconnected multicompartmental pressure redistribution system that is able to precisely identify contact pressure points and address excess pressure on the body by redistributing the pressure in real time. Sensors that are part of a matrix of fluid substance-filled interactive pixels communicate with a microcontroller that may also be in wireless communication with a smart device. The microcontroller controls the individual fluid flow regulators located between the interactive pixels. This causes specific flow regulators to open, allowing the fluid substance to flow from one interactive pixel to another, redistributing pressure, as needed.

Faucets are provided with joystick type control handles. The joysticks are provided with springs outside the main valve housing either between the joystick handle and lever stick, or between the joystick handle and an associated ball. In the latter case the ball retains a sliding disk.

A semiconductor interconnect structure including a semiconductor substrate, a semiconductor active device formed in the substrate, a layer of low-k dielectric material, a first patterned conducting layer, a second patterned conducting layer, and a cap layer formed thereon. The low-k material layer is formed over the semiconductor device. The first conducting line is formed in the low-k material layer and connected to the semiconductor active device. The second conducting line is formed in the low-k material layer but not electrically connected to the semiconductor active device. The cap layer is formed over the low-k material layer, the first and second conducting lines. The cap layer includes silicon and carbon. Since the adhesion strength between the cap layer and the patterned conducting layer is greater than the adhesion strength between the cap layer and the low-k material layer, the addition of second patterned conducting layer would eliminate the overall possibility of delamination between the surface where cap layer is in contact with the low-k material and the first and the second patterned conducting layers.

A discharge lamp ballast is provided for powering a discharge lamp with feedback filament heating control. A startup circuit is coupled between output terminals of a DC-AC power converter together with a discharge lamp. A lamp current detection circuit and a lamp voltage detection circuit detect output signals to the lamp. A control circuit controls the switching elements and generates an operating frequency in accordance with a startup operation to generate a high voltage output from the startup circuit and ignite the discharge lamp, a filament heating operation wherein the operating frequency is controlled so as to set the amplitude of the output current detected by the lamp current detection circuit to a target current amplitude based on the amplitude of the output voltage detected by the lamp voltage detection circuit, and a steady-state operation wherein the operating frequency is decreased to maintain a stable light output from the discharge lamp.

A discharge lamp ballast is provided for powering a discharge lamp with feedback filament heating control. A startup circuit is coupled between output terminals of a DC-AC power converter together with a discharge lamp. A lamp current detection circuit and a lamp voltage detection circuit detect output signals to the lamp. A control circuit controls the switching elements and generates an operating frequency in accordance with a startup operation to generate a high voltage output from the startup circuit and ignite the discharge lamp, a filament heating operation wherein the operating frequency is controlled so as to set the amplitude of the output current detected by the lamp current detection circuit to a target current amplitude based on the amplitude of the output voltage detected by the lamp voltage detection circuit, and a steady-state operation wherein the operating frequency is decreased to maintain a stable light output from the discharge lamp.

A wellhead seal assembly that forms a metal-to-metal seal between inner and outer wellhead members. A metal seal ring has inner and outer legs that are threaded to each other and separated by a slot and provide bi-directional sealing. The threaded connection provides a pathway for annular pressure into the slot. The inner and outer legs have inner and outer walls, respectively. Inner and outer legs have a soft metal inlay on their interior surfaces. Wickers may be located on the outer surface of the inner wellhead member and on the inner surface of the outer wellhead member. An energizing ring is moved into the slot to force the outer and inner walls of the seal into sealing engagement with the inner and outer wellhead members. The soft metal inlays deform onto the energizing ring. If present, wickers on the wellhead members embed into the walls of the seal ring.

The aim of the present invention is to provide a VDT stress mitigating device and method capable of mitigating VDT stress caused by a regular spatial pattern and VDT stress caused by flicker generated by an interlaced format, a VDT stress risk quantifying device and method, and a recording medium. An A / D conversion section 10 imports interlaced format video signals P1 from an external image signal output device and converts them in field units by A / D conversion into image data D1. A filter section 20, while not distinguishing between the first field and the second field, and while maintaining the temporal order of these fields, performs a temporal filtering process on the image data of each field. A D / A conversion section 30 converts the image data D2 that has undergone the temporal filtering process by the filter section 20 into image signals P2 based on an interlaced format by D / A conversion. The image signals P2 are then sequentially outputs according to the temporal order of the fields.

A thumb protector comprising an upper layer attached to a lower layer at first distal ends with an attachment mechanism to connect second distal ends of the upper and lower layers is provided. The second distal ends of the layers form an aperture and have a circumference smaller than a thumb circumference to retain the thumb protector on the thumb. The lower layer is soft and elastic to disperse pressure applied to an external surface of the lower layer to thereby reduce pressure applied to the thumb to prevent soreness and callous formation while still imparting a natural sense of feel.

The invention discloses a composite supporting system for a coal mine rectangular gate roadway during pressure bump based on the strong-releasing and strong-supporting theory. The composite supportingsystem comprises a roof supporting system used for supporting a gate roadway roof, a side supporting system used for supporting the two sides of the gate roadway and a pressure-releasing groove formed in a floor of the gate roadway. The roof supporting system comprises a plurality of roof short anchor cables and energy absorption pieces; every two adjacent roof short anchor cables extending in the length direction of the gate roadway are connected through roof U-shaped channel steel, and roof pressure-releasing holes are formed in the roof; the side supporting system comprises a plurality ofside short anchor cables and energy absorption pieces; and every two adjacent side short anchor cables arranged in the height direction of the sides are connected through side U-shaped channel steel,and side pressure-releasing holes are formed in the two sides of the gate roadway correspondingly. The composite supporting system adopts the principles of strong-releasing and strong-supporting as well as shock absorption and energy absorption, overall deformation of the roadway can be effectively restrained, harm to personnel and equipment can be reduced when pressure bump occurs, and meanwhilefloor heave of the roadway is effectively restrained.

A fan includes a fan member, a motor that drives to rotate the fan member, and a rotating shaft that is connected to the fan via a vibration prevention member and transmits a turning force of the motor to the fan. The vibration prevention member is an elastic member that connects an inner cylinder made of metal included in the rotating shaft and an outer cylinder made of metal included in the fan member. At least one of an outer circumferential section of the inner cylinder and an inner circumferential section of the outer cylinder is configured in a polygonal shape when viewed from the rotating shaft direction. A turning force received by the vibration prevention member acts as compression stress on an adhesion interface between a vibration prevention material and metal.

The invention discloses a flow regulator for supplying cooling water to equipment, and belongs to the technical field of water flow regulation and distribution. The invention has an outer sleeve, the opening of the right end of the outer sleeve is provided with a cover, and the side wall of the outer sleeve is provided with a relative water inlet and water outlet; the outer sleeve is slidably installed with an inner sleeve with a closed right end and an open left end A piston is installed on the outer wall of the inner sleeve to the left, a guide ring is installed on the outer wall of the inner sleeve to the right, and the outer wall of the inner sleeve is provided with evenly arranged permeable holes at the positions opposite to the water inlet and the water outlet; An adjusting bolt is installed on the cover body of the barrel; the inner end of the adjusting bolt is located inside the cover body, and an adjusting spring is connected between the inner end of the adjusting bolt and the right end of the inner sleeve. The invention has a simple structure, can set and adjust the pressure according to actual requirements, and solves the problem that the equipment cannot be cooled normally when the pressure of the cooling water in the cooling system is too low.

A permanent magnet rotating electric machine includes a rotor and a stator. The rotor includes: a permanent magnet forming a single pole within a rotor core of the rotor, the permanent magnet being divided into two divided permanent magnets; a connecting portion assuming an electrical steel sheet disposed between the two divided permanent magnets; and magnet insertion holes in which the permanent magnets are inserted. In the rotor, the magnet insertion holes are shaped to include: air gaps at both end portions in a width direction of the permanent magnet, each air gap being formed between a surface of the permanent magnet extending perpendicularly to the magnetization direction and a surface of the electrical steel sheet facing the surface of the permanent magnet; a shoulder portion disposed on the facing surface; and another air gap extending toward a rotor outside diameter side and the magnetic pole center side.

The invention discloses a foundation pile for a building. The foundation pile comprises a pile driving frame, wherein the top of the pile driving frame is fixedly connected with a rammer; the upper surface of the pile driving frame is in sleeve connection with a pile body; the bottom of the pile body is movably connected with a pile head device; the pile head device comprises a pulling block and a chuck device; the outer surface of the bottom of the pile body is in sleeve connection with a pile head shell; the outer surface of the pile body is fixedly connected with the chuck device and the pulling block respectively; the pulling block is arranged in an inner cavity of the pile head shell and is adaptive to the inner cavity; a side pressing device is in sleeve connection with an opening of an inner wall of the pile head shell; the bottom end of the pile head shell is fixedly connected with a protection block; and a pressing block is arranged at the bottom of the inner cavity of the pile head shell. The invention relates to the technical field of buildings. According to the foundation pile for the building, the pile body is hit through the rammer so that the foundation pile for the building is pressed to move downward to enter soil; the pile head device is arranged at the bottom of the pile body so that the effect of protecting the bottom of the pile body in an underground high-pressure environment is realized.

It is an object of the present invention to provide a semiconductor module that reduces an excessive stress on a sealed object due to the expansion and contraction of a sealing gel to thus improve the reliability. A semiconductor module according to the present invention includes: a semiconductor element bonded to a metal pattern on an insulating substrate contained in a case; a sealing gel sealing the insulating substrate and the semiconductor element within the case; and a sealing-gel-expansion suppressing plate disposed in the upper portion of the sealing gel to be at least partially in contact with the sealing gel. The sealing-gel-expansion suppressing plate includes a surface facing the sealing gel and inclined to the upper surface of the sealing gel.

An improvement which reduces the reflux requirement for a fractional distillation system of an alcohol production plant (40, 60, 70, 80). The improvement includes a mixing device (44) for combining a water / alcohol mixture having an enhanced alcohol content (50, 62, 72, 82) with the reflux liquid (16) in the absence of a vapor / liquid equilibrium interface to form a reflux mixture (56) for supply to the rectifier column (14). The mixture having an enhanced alcohol content may be sourced from a location along the rectifier-reflux vapor to liquid system flow path, or from another source.

The invention provides a stern ramp traction system for a ship and an unfolding method thereof, the ship further comprises a ship main body and a stern ramp, the stern ramp traction system comprises at least one operating mechanism and at least one supporting device, the at least one operating mechanism is suitable for being telescopically connected to the ship main body and the stern ramp, and the at least one supporting device is suitable for being connected to the ship main body and the stern ramp. The at least one operating mechanism drives the stern ramp to be switched between a folding position and an unfolding position based on the ship body, the at least one supporting device is located on the same side of the at least one operating mechanism, one end of the supporting device is connected with the ship body, and the other end of the supporting device is connected with the ship body. The other end of the supporting device can be connected to the stern ramp, so that when the stern ramp is adjusted to the unfolding position, the supporting device is connected between the ship body and the stern ramp.

A battery pack includes a core pack including a unit cell; a protection circuit module electrically connected to the core pack and including a switch contact portion; a frame accommodating the core pack and the protection circuit module; and a cover including a recessed portion covering at least a part of the core pack, facing the switch contact portion, and extending toward the protection circuit module.

The aim of the present invention is to provide a VDT stress mitigating device and method capable of mitigating VDT stress caused by a regular spatial pattern and VDT stress caused by flicker generated by an interlaced format, a VDT stress risk quantifying device and method, and a recording medium. An A / D conversion section 10 imports interlaced format video signals P1 from an external image signal output device and converts them in field units by A / D conversion into image data D1. A filter section 20, while not distinguishing between the first field and the second field, and while maintaining the temporal order of these fields, performs a temporal filtering process on the image data of each field. A D / A conversion section 30 converts the image data D2 that has undergone the temporal filtering process by the filter section 20 into image signals P2 based on an interlaced format by D / A conversion. The image signals P2 are then sequentially outputs according to the temporal order of the fields.

A fan includes a fan member, a motor that drives to rotate the fan member, and a rotating shaft that is connected to the fan via a vibration prevention member and transmits a turning force of the motor to the fan. The vibration prevention member is an elastic member that connects an inner cylinder made of metal included in the rotating shaft and an outer cylinder made of metal included in the fan member. At least one of an outer circumferential section of the inner cylinder and an inner circumferential section of the outer cylinder is configured in a polygonal shape when viewed from the rotating shaft direction. A turning force received by the vibration prevention member acts as compression stress on an adhesion interface between a vibration prevention material and metal.

The invention relates to a system and method for controlling a power plant in a ship. The system includes at least one switchboard, which also includes a plurality of power plant components including power supply equipment such as generators and energy storage elements, at least one energy consumer, and a dynamic hybrid control unit, the The dynamic hybrid control unit includes measuring means for monitoring predetermined power plant and ship-related parameters and computing means for calculating and forecasting power and energy requirements of the power plant in different time frames in the future. The system utilizes the power and energy requirements to pre-plan and distribute power and energy among the power plant components to minimize transients including power plant voltage, frequency changes and generator load changes.