45 results about "Motive power" patented technology

A hybrid electric propulsion system for powering a vehicle using a natural fuel engine and an electric motor. The hybrid electric vehicle is comprised of a drive train; an electric motor for driving the drive train; an auxiliary power unit (APU); an electric energy storage system electrically coupled to the electric motor; and wherein the auxiliary power unit and the electric energy storage system provide energy for powering the vehicle. An electric bus is directly connected to both the auxiliary power unit and the electric energy source and the voltage across the electric bus is substantially the same as the voltage across the electric energy source so that a change in voltage of the electric bus results in the same change to the voltage across the electric energy source. A power management controller is programmed to control output power of the power unit to maintain the energy storage system between a predetermined high voltage set-point and a predetermined low voltage set-point.

A wind power plant and a method of start up at least a part of a wind power plant connected to an external grid substantially without any energy delivered from the external grid for the start up is provided. The wind power plant having a plurality of wind turbines and at least one power source connected to at least one of the wind turbines in order to start the wind turbine while isolated from the remaining wind turbines. The started wind turbine may then supply power in order to start further wind turbines. Power may be delivered to the grid from the started wind turbines.

The invention relates to an SOC and SOT combined state estimation method based on a power battery electric-thermal coupling model, and belongs to the technical field of battery management. The methodcomprises the steps of selecting a to-be-measured power battery, building the electric-thermal model of the power battery, and determining parameters needed for estimating the SOC and the SOT of the power battery; under different temperatures, conducting trickling charging-discharging experiments and HPPC experiments on the measured power battery, building a database of equivalent circuit model parameters relevant to the temperature and the SOC under a charging and discharging condition, and simulating field test working conditions under different road conditions to build the database; conducting parameter identification to obtain characteristic parameters of the electric-thermal model, and obtaining the quantitative relation between the equivalent circuit model parameters and the temperature and the SOC under the charging and discharging condition. By means of the SOC and SOT combined state estimation method based on the power battery electric-thermal coupling model, the model is combined with a PF algorithm and the quantitative relation of the equivalent circuit model parameters relevant to the temperature and the SOC under the charging and discharging condition of the power battery to achieve the SOC and SOT combined state estimation of the power battery.

The invention discloses an amphibious power propulsion device suitable for sea and air, comprising a frame type retainer, a tilting motor, a power motor fixedly arranged at the middle part of the retainer, as well as propellers for air and propellers for sea, which are coaxially and rotatably arranged at a certain interval, wherein the propellers for air are in driving connection with the power motor through a unidirectional rotation mechanism, the propellers for sea are in driving connection with the power motor, a rotating shaft of the tilting motor is fixed at the outer side of the retainer through a connecting plate, and the rotating axis of the tilting motor is perpendicular to the rotating axis of the propellers for air and the propellers for sea. The invention also provides an amphibious multi-axis aircraft suitable for sea and air. According to the amphibious power propulsion device and the amphibious multi-axis aircraft, the same motor is adopted to simultaneously adapt to two different working environments, namely in the air and under the water, thereby reducing the weight of the amphibious aircraft for sea and air and simplifying the structure of the aircraft; and meanwhile, the tilting motor is used for controlling the direction of power output, thereby increasing the maneuverability of the amphibious aircraft and strengthening the capability of the amphibious aircraft for finishing complex tasks.

An improved axial gas bearing for a gas-driven NMR MAS sample rotor is disclosed that utilizes inward flow with a low rotational component over a rotor conical end. A conical flow region is formed between the rotor conical end and a conical stator bearing surface such that the included angle defining the stator surface is not less than the included angle defining the rotor conical end. Gas is injected radially inward with a significant axial rearward component from a number of small holes at high velocity from the periphery into the conical flow region. Compared to the radial velocity components, the tangential flow components of the injected gas are small and preferably opposed to the direction of the rotor rotation. The high and accelerating negative radial velocities may result in significant Bernoulli effect, such that the mean axial pressure over the conical rotor end may be less than atmospheric pressure for a given axial clearance, but as the clearance decreases, the hydrostatic effects exceed the Bernoulli effects and the mean axial pressure over the conical rotor end may then exceed atmospheric pressure by a substantial amount. Thus, a self-stabilizing axial bearing is formed with improved stability and stiffness for rotor surface speeds up to at least 80% of the speed of sound. Motive power required to spin the rotor may be provided by a radial-inflow microturbine at the opposite end of the rotor in a way that is readily compatible with automatic sample change.

The invention relates to a hybrid driving system, which comprises an internal-combustion engine, a first motor, a second motor, a power output shaft used for outputting power, a first brake, a second brake, a first transmission mechanism, and a second transmission mechanism. Two connected transmission mechanisms and brakes are arranged in the hybrid driving system. When the two brakes respectively brake, the two transmission mechanisms are in two different connection modes, namely two different transmission ratios (tap positions) are formed, therefore various working modes and corresponding tap positions can be selected according to different driving conditions of a vehicle, and driving requirements of the vehicle under different working conditions can be met further. Besides, by the adoption of the hybrid driving system provided by the invention, the low-speed torsion of the whole vehicle can be increased and the starting is quickened, moreover, the highest efficiency of the internal-combustion engine can be exerted under a high-speed condition, thereby promoting energy conversion efficiency, reducing tail gas emission and energy loss, and finally achieving the effects of low emission, low fuel consumption and high kinetic energy of the whole vehicle.

The invention relates to a power transmission system and application thereof, in particular to a gas-liquid kinetic energy driven system and an oil pumping unit applying the same. The power driven system comprises a gas-liquid accumulator, an execution plunger cylinder, a plurality of reversing valves and a pressure pump, which form a driving oil way and an oil return way, and a closed loop consists of the driving oil way and the oil return way. The oil pumping unit adopts the driven system to drive an oil pumping rod to vertically move and can be folded. The power driven system saves energy resources and has high efficiency and good effects of low carbon and emission reduction, and the oil pumping unit has a simple structure, a small size, less easily-damaged mechanical parts and long service life. By the power driven system and the oil pumping unit, the technical problems that the power system in the prior art requires large motive power and has poor energy-saving effect, and the oil pumping unit is easily fatigue and damaged and has multiple faults are solved.

A method for multi-objective optimization of powertrain mount system is disclosed. The method comprises the following steps of: establishing a dynamic model of a powertrain mounting system; The vibration differential equation of the system is established based on the basis; By solving the vibration differential equation, the energy of the system is decoupled, and the frequency response characteristic functions of the center of mass displacement and the rotation angle of the system and the dynamic reaction force of the suspension are obtained. Taking mounting stiffness and mounting angle as optimal design variables, Taking the natural frequency and other variables as constraints, establishing A multi-objective function model with the objective of maximizing the energy decoupling rate in thevertical direction and the crankshaft direction, minimizing the center of mass displacement and rotation angle of the system when the center of mass of the system is loaded with a unit torque load, and minimizing the center of mass displacement and rotation angle of the system when the center of mass of the system is loaded with a unit displacement load. The invention considers the influence of the displacement load on the NVH performance of the whole vehicle, and increases the mounting angle as an optimization variable, so that a better optimization scheme can be obtained.

The invention discloses a compound type elevator and a control method thereof. The compound type elevator comprises a clutch device and two elevators, wherein each elevator is provided with a lift car, a traction system, a permanent magnet synchronous motor, a second control system and a first control system, wherein the permanent magnet synchronous motor can be used for converting potential energy of the descending lift car into electric energy; the first control system can be used for controlling the lift car to ascend in the electric state; the permanent magnet synchronous motor, the traction system and the lift car are connected with power; the permanent magnet synchronous motor is connected with the first control system and the second control system; the second control system comprises an electric energy storage device for storing the electric energy; the electric energy storage device is connected with the first control system; the clutch device includes the connecting state and the separating state; and two lift cars are linked in the connecting state and independently operate in the separating state. When fire occurs in the building, trapped people can enter the lift cars and descend to the ground for self-rescuing, escaping and refuge seeking. The invention solves the problem that power consumption is required for the use of group evacuation equipment (such as fire elevator products).

The invention discloses a speed changing box lubricating method suitable for a hybrid electric vehicle. The vehicle comprises an electric pump and a mechanical pump. Work modes of the vehicle include an EV mode and a hybrid electric vehicle mode. The method comprises the following steps that S11, a controller judges the work mode of the vehicle; S12, in the EV mode, the controller controls the electric pump to lubricate a speed changing box with different power values according to the temperature of lubricating oil; and S13, in the hybrid power mode, the controller shuts down the electric pump, and the mechanical pump is started along with an engine and starts to lubricate the speed changing box. According to the above speed changing box lubricating method, the electric pump or the mechanical arm is started to work according to the mode of the vehicle, and the work of the electric pump and the mechanical pump is divided according to different modes. Meanwhile, by means of the above method, the rotating speed of the electric pump is controlled according to the temperature of the lubricating oil, and accordingly the lubricating efficiency is improved. The invention further discloses a speed changing box lubricating system.

The invention discloses a steel-plastic composite winding pipe winding machine, which relates to a device for winding a plastic winding pipe and is invented by mainly aiming at solving the problems of complicated structure and inconvenience in regulation of the existing winding machine. The steel-plastic composite winding pipe winding machine comprises a machine seat, a motor and a box body, wherein a slide block is arranged in the box body, an upper motive power roller and a lower motive power roller are arranged on the box body, the lower motive power roller is connected with the motor through a chain, the upper motive power roller and the lower motive power are connected through a chain, a lead screw is arranged on the box body through a screw nut, a hand wheel is arranged on the lead screw, a ring gauge is arranged on the machine seat, a rotating roller is arranged on the ring gauge, a feeding roller support frame is arranged on the machine seat, a feeding roller is arranged on the feeding roller support frame, a glue barrel is arranged on the machine seat, a valve is arranged on a glue pipe of the glue barrel, and the outlet end of the glue pipe is arranged on the glue pipe support frame. A steel belt wheel support frame is arranged on the ring gauge, a chute is arranged on a guide rail arranged on the steel belt support frame, a steel belt wheel lead screw is arranged in a screw nut arranged in a lead screw sleeve barrel of the chute, a steel belt pressing hand wheel is arranged on the steel belt lead screw, a steel belt wheel frame is arranged on a screw nut slide sleeve, and a steel belt wheel is arranged on the steel belt wheel frame. The steel-plastic composite winding pipe winding machine has the advantages that the structure is simple, and the regulation is convenient.

An energy management control device for a hybrid vehicle has an energy management controller that suppresses an occurrence of a condition in which an EV start is not possible due to insufficient battery charge capacity when an engagement clutch fails. When the energy management controller has determined that one of the engagement clutches has failed that is used to carry out an EV start using a first motor generator as a drive source that receives electrical power from a high-power battery when starting the vehicle, energy management maps are used in energy management control, which have a usage SOC range that is broader than the usage SOC range of the normal energy management map, which is used during normal operation.

In a controller for an electric power steering apparatus, a target value calculation element, which calculates target values of the drive currents of a motor on the basis of a detected value of the steering torque, is constituted by a first integrated circuit provided in a chip. A drive signal value calculation element, which calculates drive signal values for driving the motor on the basis of the target values calculated by the target value calculation element, detected values of the drive currents of the motor, and a detected value of the rotary position of a rotor of the motor, is constituted by a second integrated circuit provided in another chip from the chip. A driving element drives the motor in accordance with the drive signal values. The first integrated circuit is connected communicably to the second integrated circuit. The calculation cycle of the drive signal values is set to be shorter than the calculation cycle of the target values.

The present invention relates to a power unit for a medicament delivery device comprising a power body (24) having opposite proximal and distal ends, a plunger rod driver (44) coaxial and movably arranged in relation to said power body, a plunger rod (72) coaxial and movably arranged in relation to said plunger rod driver, a force spring element (78) operably connected between said plunger rod (72) and said power body; wherein the plunger rod driver comprises first holding elements (66, 68) arranged to interact with second holding elements (76) on said plunger rod (72) and with the power body for releasibly holding said plunger rod (72) with said force spring element (78) in an injection tensioned state; third holding elements (56) arranged to interact with fourth holding elements (41) on said power body (24) for releasibly holding said plunger rod driver in a penetration tensioned state; first attachment elements (52) arranged to interact with second attachment elements (108) on a medicament container holder (92), capable of attaching the two attachment elements together; and first blocking elements (62) arranged to interact with second blocking elements (43) on said power body (24), for blocking any movement of said plunger rod driver (44) in the distal direction after the plunger rod driver is released from a penetration tensioned state.

The invention relates to a system of power test, and the objective is to provide an air-fuel mixed power test system. In the test system, an eddy current dynamometer is connected with a pneumatic engine, a hydraulic dynamometer is connected with an internal combustion engine; and the test system also includes a gas tank for storing high pressure gas, the gas tank is connected with a heat exchanger, a stable pressure box and a pneumatic engine in order via pipelines; high-temperature discharging pipelines of the internal combustion engine is connected with the heat exchanger, exchanging heat with high pressure gas by the heat exchanger and communicationg with the atmosphere; a pressure sensor is provided on the stable pressure box, pipelines of the gas tank outlet is provided with an air flow meter, high pressure gas pipelines of both sides of the heat exchanger is provided with a thermocouple respectively; and all the pressure sensor, the air flow meter and the thermocouple are connected with a computer. The invention provides feasible test system for verifying validity of the air-fuel mixed power test system theoretical derivation, being able to provide reliable experimental parameters for implementation of more advanced air-fuel mixed power system in the future.

The invention discloses a jet engine, which comprises a shell with exhaust holes, a rotor which is arranged in the shell and can be rotated, and at least one jet device, wherein the rotor is fixedly arranged on an output shaft supported by a bearing; the jet device is arranged on the periphery of the rotor and generates propulsion by combusting fuel gas to cause the rotor to rotate; and the jet device comprises a combustion chamber with a jet exhaust, an ignition device, an oxygen therapy trachea and a hydrogen therapy trachea. Compared with the prior piston type engine, the jet engine has the characteristics of simple structure, small volume, light weight, few components, easy processing and manufacture, low fault rate, low manufacturing and using cost, fast starting, high rotating speed, high efficiency of heat engine, high power, stable running, small noise, no air pollution, small abrasion of accessories, long service life and so on, and is suitable for various vehicles or power generating machines.

A heat engine enclosing a chamber in housing has two zones maintained at different temperatures. The first zone receives heat energy from an external power source. The second zone is connected to the hot zone by two conduits, such that a fluid (e.g., air, water, or any other gas or liquid) filling the chamber can circulate between the two zones. The expansion of the fluid in the hot zone and the compression of the fluid in the cold zone drive the rotation of the housing to provide a power output. The fluid may be pressurized to enhance efficiency. A cooling fluid provided in a stationary reservoir maintains a preferred operating temperature difference between the hot zone and the cold zone. A heat storage structure containing a fluid with a high heat capacity may be provided as a heat reservoir.

The invention discloses a container type generator set. The container type generator set comprises a container shell, an oil tank, a controller and at least two generator set bodies are installed in the container shell, the control ends of all the generator set bodies are in signal connection with the controller, and power units of all the generator set bodies are engines; and the oil tank is correspondingly connected with the oil inlets of all the engines through oil pipes. According to the container type generator set, the working states of the generator set bodies are switched through the controller so that the generator set can supply power uninterruptedly, and the requirement of the operating condition that one generator set body needs to be stopped to be repaired and maintained is met; the container shell is adopted, so that the technical problems that the transportation is inconvenient and a large installation site is required are solved; and the oil tank is internally arranged,and especially in order to meet long-time work requirements, the large-capacity oil tank is internally arranged so that the oil consumption requirement of long-time running of the generate set can bemet.

A coaxial all-metal cam stator and rotor underground dynamical drilling tool comprises a transition joint, the transition joint is connected with a motor assembly through threads, and the motor assembly is connected with a transmission shaft assembly through threads. After being filtered through a filtering device, drilling liquid passes through the transition joint, enters an annular space between a motor base shell of an upper motor and a stator shell after passing through an upper end cover, enters a center hole of an upper rotor after acting on the upper rotor, is discharged towards a lower motor through inclined holes in the center hole of the upper rotor and continuously drives the lower motor to rotate, a part of the liquid acted by the lower motor flows out through small holes formed in a transmission shaft joint to lubricate and cool a bearing and most of the drilling liquid is sprayed out through an inner hole of a spindle of the transmission shaft and drill water holes so as to cool and clean a drill and circulate slurry. The coaxial all-metal cam stator and rotor underground dynamical drilling tool has the advantages of being resistant to abrasion, resistant to corrosion, resistant to high temperature, resistant to aging, long in service life, simple in structure and easy to machine.

The invention relates to an engine power system, and aims to provide a pneumatic and internal combustion hybrid system based on multi-stage utilization of afterheat of cooled water. According to the system, an air inlet pressure stabilization box of a pneumatic engine is connected with an air storage tank through a high pressure air pipeline; an air cylinder body and an air cylinder cover of a water-cooled internal combustion engine, a water pump and a pipeline form loop circulation; a circulation loop of the cooling water in the water-cooled internal combustion engine is divided into three stages; the first stage of the circulation loop is small circulation of the internal combustion engine body; the second stage of the circulation loop and the third stage of the circulation loop are respectively added into a pneumatic engine air cylinder and a water and air heat exchanger; and the stages of circulation loops are switched by turning on and turning off an electronic thermostat. The system makes full use of the afterheat of the cooling water in the internal combustion engine, so that the working environment of the pneumatic engine is improved, the circulation output power of the pneumatic engine is improved effectively, and the air consumption rate of the pneumatic engine is reduced finally; furthermore, the energy consumption of the internal combustion engine is reduced; and the dynamic property and the economy of the power system are improved.

A motor vehicle drive system (1) comprises: a first electric drive machine (3), connected to a battery of accumulator cells, capable of providing mechanical drive energy and arranged in such a way that it can be coupled, in a way that may or may not be disengageable, to a differential (2) capable of driving a pair of driven wheels of the vehicle, - a second electric drive machine (4), connected to the battery of accumulator cells by a current inverter - rectifier which alternately allows the second machine (4) to deliver mechanical drive energy from the electrical energy of the battery and to convert mechanical energy transmitted to the second drive machine into electrical energy sent to the battery, - a combustion engine (5). The system further comprises a first set of gears (22-53, 38-53) provided with a first sliding sleeve (44,49), which, by moving the first sliding sleeve (44, 49), allows the second electric machine (4) to be coupled selectively either to the differential (2) or to the combustion engine (5).