Under total working conditions, the output pressure of the system is higher than that of the plunger pump driven by traditional internal combustion engine by 15.21%76.61%, the output flow rate is lower by (0.69)%2.13%, and the output water power increases by 13.63%74.75%.

Prototypes of two-chamber and four-chamber pumps in parallel connection have been designed and fabricated, and experiments on flow rate have been made. The maximal output flow rate of 9.2 mL/min was measured.

Output flow rate and pressure are very important characteristic parameters of artificial hearts, so the precision and means to measure them have direct effect on animal and clinic performance.

Under total working conditions, the output pressure of the system is higher than that of the plunger pump driven by traditional internal combustion engine by 15.21%76.61%, the output flow rate is lower by (0.69)%2.13%, and the output water power increases by 13.63%74.75%.

Changing the speed of electric motor by using AC frequency conversion is to regulate output flow of hydraulic pump to control the velocity of the motion of hydraulic actuator.

By using the larger magnetic permeability, magnetic fluid was used to improve the magnetic circuit efficiency in torque motor, enlarge the output torque and displacement of torque motor, and the output flow of servo valve.

Exploiting the principle of water-jet, the paper theoretically expands the effects to installation power in quantity and exit diameter of spray nozzle, and deduces basic formula of determination on maximum output flow and pressure of hydraulic pump, and points out that physical and chemical property of crease stains is critical about determination of working parameter.

With the alternating current of 200 V,the maximum self-suck height of the formers is 430 mm water column(the pressure is about 43 kPa),and the maximum output flux is 972 ml/min,the counterpart value of the latter piezoelectric pump is 410 water column and 480 ml/min,respectively.

Through a dynamic analysis of cubage actional system of parallel connected pump and valve, the output flux of vavle and pump is distributed fully after dynamically revising them.

The results show that the responding time is about 10ms, and the permissible working pressure is more than 6bar, and the maximum output flux exceeds 37L/min when the working pressure is 3 atmosphere pressure. Therefore, the designing aim of high pressure, large flux and fast response is utilized.

The experimental results show that the self-suck ability and output flux of the piezoelectric pump with holistic opening valve are better than the piezoelectric pump with cantilever valve.

Because many working principles for flow measurement cannot be scaled down to very small dimensions, we have developed a new method to measure the output volume.

It is a new relation between the output flow rate and the input flow rate, crucial in the study of the Poisson hypothesis.

The mathematical model of pressure and flow rate within the micro nozzle/diffuser was established to analyze the effects of nozzle/diffuser parameters on the output flow rate of the micro valveless pump.

In optimizing the design of the actuator, the objective is to maximize the output flow rate of the micropump while maintaining the mechanical integrity of its constituent parts.

The liposome dispersions were aerosolized with a Collison nebulizer for 80 min at an output flow rate of 4.7 liters of air/min.

A performance equation for the system was also developed which predicts the output flow rate of the pump to within 6%.

By using tapered diffuser vanes, the interaction area between the impeller-discharge flow and diffuser vanes becomes small, and then the noise level of the discrete tone can be reduced remarkably as a result.

A discharge flow/shock tube study of the quenching of singlet oxygen1Σg+ by carbon dioxide

Discrete element method applied to multiobjective optimization of discharge flow parameters in hoppers

Multiobjective approach for optimization of the discharge flow parameters of viscoelastic frictional granular material in a wedge-shaped hopper with fixed outlet orifice is considered.

The discharge time and the discharge flow rate are taken as optimality criteria, while the discharge mass of material and the shape of the hopper are considered as design variables.

It is a new relation between the output flow rate and the input flow rate, crucial in the study of the Poisson hypothesis.

Its implications include the statement that the output flow always possesses more regularity than the input flow.

The mathematical model of pressure and flow rate within the micro nozzle/diffuser was established to analyze the effects of nozzle/diffuser parameters on the output flow rate of the micro valveless pump.

In optimizing the design of the actuator, the objective is to maximize the output flow rate of the micropump while maintaining the mechanical integrity of its constituent parts.

The physical behaviour is represented by an input-output flow-of-action, contrary to the commonly-used input-output flow-of-object approach (where object refers to material, energy or signal).

The results describe the dependence of the amplified-spontaneous-emission (ASE) output flux on the pumping rate, on the spectral narrowing process and on the total spontaneous emission for a pulse in the selected angular width.

An input/output flux for lead in a coastal bay off Alexandria region

The dependences of the threshold and output flux of such a system on the resonator parameters are investigated.

Table 1 shows the measured output flux at each profile along with the accumulation flux of the indicated upstream area.

The yearly Israeli contribution to the output flux towards Jordan was estimated to be 0.13 tg total sulfur.

Stochastic hydraulics is a new development in the research of hydraulics. By coupling a stochastic model with a deterministic model, the computation of unsteady open channel flow is studied. Saint Venant equations are used as the sys -tern model. We use stochastic models for the inputs including roughness, cross-section, hydraulic radius and so on. The outputs of discharge and water level varyingwith time and location are stochastic. An unsteady flow in the downstream ofZhexi Water Power Station is calculated...

Stochastic hydraulics is a new development in the research of hydraulics. By coupling a stochastic model with a deterministic model, the computation of unsteady open channel flow is studied. Saint Venant equations are used as the sys -tern model. We use stochastic models for the inputs including roughness, cross-section, hydraulic radius and so on. The outputs of discharge and water level varyingwith time and location are stochastic. An unsteady flow in the downstream ofZhexi Water Power Station is calculated by this method as above, and the resultsare compared with the observed data.

This paper puts forward a new idea of control valve, a digit-controlled proportional directional valve with input of PWM signal, which can be used in the condition of enomous inertia, colossal load and lower velocity to reduce hysteresis and crawling. The valve has a series advantages such as excellent aptipollution ability, tiny hysteresis and cheaper price and it can be controlled directly with computer.The pressure and flow rate of the valve and their pulsat ion magn itudes can be controlled by adjusting...

This paper puts forward a new idea of control valve, a digit-controlled proportional directional valve with input of PWM signal, which can be used in the condition of enomous inertia, colossal load and lower velocity to reduce hysteresis and crawling. The valve has a series advantages such as excellent aptipollution ability, tiny hysteresis and cheaper price and it can be controlled directly with computer.The pressure and flow rate of the valve and their pulsat ion magn itudes can be controlled by adjusting the duty cycle and the frequency of PWM signal. A mathematical model of the PWM digit-controlled proportional valve is set up and its theoritical analyses illustrated with experiment characteristic curves are displayed. Finally, the paper ends with the conclusion and the expeiimental charts of the static characterstics of the valve.

The instantaneous flow pluse characteristics of axial piston pump with non-symmetric distributor with blocking corner and damping holes are presented. The effect of distributor design on output flow characteristic is analyzed. An improved concept is introduced, in which the elimination of pressure impact and the reduction of flow pulse are the main factors considered comprehensively in the shock relieve arrangement of the distributor