Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

39results about How to "Limit disturbance" patented technology

Hot-pluggable voltage regulator module

A power subsystem for a computer system allows a voltage regulator module (VRM) to be removably connected to a system board, while limiting disturbances on the voltage rails of the system board. The electrical disturbances are prevented by charging voltage outputs of the DC / DC circuit of the VRM prior to directly connecting the voltage outputs to the voltage rails. To ensure that the voltage outputs are properly charged, a VRM connector may be used in which the voltage output pins are shorter than charge pins which are coupled to respective capacitors and to the voltage outputs of the DC / DC circuit. In this manner, as the connector is mated with a corresponding connector on the system board, the capacitors are first charged via resistive paths connected to the voltage rails, prior to directly connecting the voltage outputs to the voltage rails. The VRMs are thus "hot-pluggable," enabling a user to upgrade or service the system with no interruption.
Owner:LENOVO (SINGAPORE) PTE LTD

Device for controlling maintenance actuators for the cowlings of a turbojet engine nacelle

InactiveUS20110250054A1Limit disturbanceAvoid thermal overdimensioningPump componentsPower plant inspection panelsNacelleAirplane
The invention relates to a device (9) for controlling the maintenance actuators (7a, 7b) of the cowlings of a turbojet engine nacelle of an aircraft, that comprises a first stage (12) to be connected to an electric power network (10) of the aircraft, at least one second power stage (13a, 13b) including converters of a first DC voltage from the first stage (12) into a second DC voltage for powering at least one maintenance actuator (7a, 7b) connected downstream from the device (9), a control means (14) for the first and second stages (12, 13a, 13b), and a means (15) for establishing a communication between the control means (14) and at least one control housing (16a, 16b) so that a user can control the operation of the actuators, the control means being arranged so as to carry out switching operations between a first operation mode in which the second stage(s) (13a, 13b) are powered, and a second standby mode in which the second stage(s) (13a, 13b) are not powered by the first stage (12).
Owner:SAFRAN NACELLES

Insulation resistance detection and ground protection device of DC electric system

The invention relates to an insulation resistance detection and ground protection device of a DC electric system. The insulation resistance detection and ground protection device comprises a detection signal source module, a plurality of signal couplers, a booster transformer, a plurality of residual current sensors, a plurality of phase-sensitive rectifiers, a plurality of insulation resistance detectors, a plurality of protection output units and blocking capacitors, wherein the detection signal source module is connected to the signal couplers through detection signal buses; the detection signal source module is connected to the positive and negative main buses of the DC electric system through the booster transformer; the residual current sensors are connected to the input ends of the phase-sensitive rectifiers, the control ends of the phase-sensitive rectifiers are connected to the detection signal buses, the phase-sensitive rectifiers are connected to the insulation resistance detectors and the protection output units, and the insulation resistance detectors and the protection output units are respectively connected to the detection signal buses. The insulation resistance detection and ground protection device has reliable selectivity and accuracy for insulation reduction and ground faults in a protection domain.
Owner:平湖市四通电源厂

Large-fault-terrace high-speed planing boat type

The invention discloses a large-fault-terrace high-speed planing boat type. The boat bottom of a planing boat comprises a front hull section and a rear hull section; the front hull section is in an arc shape; the two ends of the rear hull section are the same in height and are located at the lowest point of the bottom of the planing boat; the upper portion of the rear hull section comprises a horizontal hull section close to the front hull section; the fault-terrace-type height difference HD exists at the junction of the horizontal hull section and the front hull section, the length of the horizontal hull section is L1, and HD / L1 is equal to 2-4; the rear hull section is straight, and the included angle between the rear hull section and the horizontal plane is alpha 1, and alpha 1 is equalto 4-6 degrees; the boat width of the planing boat is K, and K / HD is equal to 6-8; and the draft of the planing boat is T, and T / HD is equal to 0.7-0.9. Large fault terraces and anti-slip strips aresimultaneously applied to the planing boat type design innovatively, under the condition that the incoming flow speed remains unchanged, a rear hull body provides larger lift, meanwhile, the space atthe tail of a hull can further be effectively enlarged, and cabin layout is facilitated.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)

Spray hole prevention drilling, cutting and punching drill tool for crossing hole of outburst coal seam

PendingCN113153148AGuaranteed permeabilityUniform coal output from drillingDrill bitsDrilling rodsCoal briquetteSlag
The invention discloses a spray hole prevention drilling, cutting and punching drill tool for a crossing hole of an outburst coal seam. The drill tool comprises a double-channel sieve hole drill bit, a plurality of double-channel slag crushing drill rods, a plurality of double-channel drill rods and a drill tail water supply and slag discharge assembly which are sequentially installed in a lap joint and combination manner from front to back; the first double-channel slag crushing drill rod is provided with a high-low pressure converter and a jet nozzle; and a hole sealing and slag discharging assembly is installed at the opening end of the drill hole. The double-channel slag crushing drill rods finally enter a coal hole section of the crossing hole, and the double-channel drill rods only enter a rock hole section; the double-channel characteristic of the drill rods is utilized to form an inner slag discharge channel of a steel sieve hole structure, the double-channel slag crushing drill rods are utilized to crush coal briquettes and coal slags produced by drilling, cutting and punching, and sieve holes are utilized to control the particle size and the flow of the coal slags entering the inner slag discharge channel, so that the permeability of the inner slag discharge channel is ensured, the gas over-limit accident of a spray hole can be prevented, and the safety and controllability of the drilling, cutting and punching operation of the crossing hole of the outburst coal seam are improved.
Owner:HENAN POLYTECHNIC UNIV

Intake device for internal combustion engine

An intake device for an internal combustion engine configures a flow passage for intake air that is drawn into combustion chambers. The intake device includes an intake manifold configuring multiple runners that respectively distribute intake air to multiple cylinders, a surge tank including a cavity that is connected to the runners and defines a convergence portion, a throttle body incorporating a throttle valve, and a connection pipe connecting the surge tank and the throttle body and configuring a curved flow passage extending between the throttle body and the surge tank. The connection pipe includes a partition plate that divides the curved flow passage into a circumferentially inner flow passage and a circumferentially outer flow passage.
Owner:TOYOTA JIDOSHA KK

Aerodynamic arm for an aircraft turbine engine casing

An aerodynamic arm for an aircraft turbine engine casing includes a tubular outer shell having a generally elongate shape extending substantially along an axis. The shell has axial ends configured to be connected to a turbine engine casing. An electrically conductive core extends inside the shell and has ends configured to electrically connect to the ends of the shell. An insulating material occupies a space between the core and the shell.
Owner:SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A

A DC electrical system insulation resistance detection and grounding protection device

The invention relates to an insulation resistance detection and ground protection device of a DC electric system. The insulation resistance detection and ground protection device comprises a detection signal source module, a plurality of signal couplers, a booster transformer, a plurality of residual current sensors, a plurality of phase-sensitive rectifiers, a plurality of insulation resistance detectors, a plurality of protection output units and blocking capacitors, wherein the detection signal source module is connected to the signal couplers through detection signal buses; the detection signal source module is connected to the positive and negative main buses of the DC electric system through the booster transformer; the residual current sensors are connected to the input ends of the phase-sensitive rectifiers, the control ends of the phase-sensitive rectifiers are connected to the detection signal buses, the phase-sensitive rectifiers are connected to the insulation resistance detectors and the protection output units, and the insulation resistance detectors and the protection output units are respectively connected to the detection signal buses. The insulation resistance detection and ground protection device has reliable selectivity and accuracy for insulation reduction and ground faults in a protection domain.
Owner:平湖市四通电源厂
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products