5results about How to "No mutation" patented technology

The application provides a involute variable-thickness gear pump, and belongs to the technical field of fluid machinery. The gear pump adopts a pair of involute variable-thickness driving gears and driven gears to form a parallel shaft external meshing pair, the thickness of the gears continuously changes along the width direction, and the meshing gap can be self-adaptively adjusted through axial position fine adjustment; the gear pair forms a gradual meshing area along the axial direction, has a dynamic thickness compensation effect, can significantly reduce fluid oil trapping, reduce flow pulsation, improve volumetric efficiency and operation stability. The application has simple structure and strong adaptability, can be compatible with straight teeth / oblique teeth, external meshing / interior meshing structure, and is suitable for high-pressure, low-noise, long-life hydraulic and fluid conveying systems.

The invention discloses a circuit and a chip for actively reducing power supply noise. The circuit comprises a logic control module, an internal clock module and a power driving output module, the logic control module is used for generating an input signal to the power driving output module; the internal clock module is used for providing a clock signal for the logic control module; the power driving output module is used for generating driving current according to an input signal; the power driving output module comprises an output control unit, an operational amplifier driving unit and an output high-power tube; the output control unit is used for controlling the output state of the output high-power tube according to the input signal and providing bias current for the operational amplifier driving unit; and the operational amplifier driving unit is used for controlling the grid electrode of the output high-power tube and enabling the current of the output load to be constant when the power supply voltage changes, and is also used for releasing the charges stored in the output high-power tube. According to the invention, a capacitor is not needed for power supply filtering, and the problems of influence on the performance of the battery and thermal runaway caused by electric leakage of the capacitor are avoided.

The utility model relates to the field of water heaters, and provides a water heater inner container and a water heater. The water heater inner container comprises an inner container body, a reinforcing layer and a container opening flange, the inner container body comprises a container body and a container opening outward turning structure which are integrally connected, a container opening is defined by the container opening outward turning structure, the outer surface of the container body is smoothly arranged, the reinforcing layer covers the periphery of the container body, and a clamping part is arranged at the end, facing the container opening outward turning structure, of the reinforcing layer; a clamping gap is formed between the clamping part and the container body, the container opening flange comprises a base and a flange plate which are integrally connected, the flange plate is arranged on the container opening outward turning structure in a sleeving mode, and at least part of the base is embedded in the clamping gap and attached to the container body and the reinforcing layer. According to the inner container of the water heater, an annular containing groove does not need to be formed in the container body, so that the surface of the container body does not have structural sudden change, a stress concentration area does not exist, the problem of deformation or damage caused by stress concentration is effectively avoided, and the stability and reliability of the inner container under the high-temperature or high-pressure condition are improved.

This invention relates to the field of control valve technology, specifically a high-adjustability ultra-high pressure control valve. The invention includes a valve body and a valve cover. The valve body has a valve outlet, and the valve cover has a valve inlet. Within the cavity formed by the valve body and valve cover, an integral valve stem, valve seat, and valve cage are arranged coaxially. The valve seat is tightly abutted against and sealed to the valve body and valve cover by fasteners, and the valve cage is fixed within the valve body. The lower part of the integral valve stem is located within the valve cage, and the two can slide axially relative to each other. The upper end of the integral valve stem passes through the inner cavity of the valve body and is sealed by an ultra-high pressure packing assembly. The integral valve stem is provided with a throttling guide post, a throttling groove, a throttling cone surface, and a conical sealing surface. The valve seat is provided with a throttling guide hole, a throttling cone surface, and a conical sealing surface. The axial relative movement of the integral valve stem and valve seat achieves flow or pressure regulation. At a small opening, the invention achieves primary throttling between the throttling groove on the integral valve stem and the throttling guide hole on the valve seat, and secondary throttling between the throttling cone surface on the integral valve stem and the throttling cone surface on the valve seat. At large opening, throttling is achieved between the throttling guide column on the integral valve stem core and the throttling cone surface on the valve seat. At small opening, two-stage pressure reduction is connected in series, suitable for high pressure drop and low flow conditions; at large opening, single-stage pressure reduction is suitable for low pressure drop and high flow conditions. The valve adjusts smoothly, has a wide adjustment range, and a high adjustability ratio.

The utility model discloses a lithium battery charge -discharge management system based on kinetic energy recovery, its characterized in that, including kinetic energy recovery power generation module, external quick charging module, lithium battery management module, external discharge module and user interactive module, kinetic energy recovery power generation module and external quick charging module are connected with lithium battery management module through charging switch and selection circuit, lithium battery management module is connected with external discharge module through discharge switch circuit, user interactive module inputs control signal to charging switch and selection circuit, discharge switch circuit and external discharge module, realizes man -machine interaction, kinetic energy recovery power generation module includes permanent magnet synchronous motor, rectifier circuit and kinetic energy recovery intensity intelligent regulation and control circuit, the utility model realizes the function that charges with the fluctuation high voltage power supply that permanent magnet synchronous motor kinetic energy recovery generates.