192 results about "Supercharge" patented technology

The present invention generally relates to units of engines and more particularly to units containing a unique combined-cycle (combustion-detonation) “counter-rotation, anti-gyration, gyroscopic,” turbine fan-jet/free-piston engine configuration for induced air supercharging and boosting the performance of novel Ramjet engines or Ramjet engine configurations by improving internal air-stream dynamics. These dynamics are the result of co-operative air stream intermixing through convergent, supercharge-attenuated, inducted, compressed, tuned, pre-heated ambient air. Achieved through the varying of the geometric structural form and the utilization of unique engines and air induction and propulsion conformations, aided with supplemental air, fuel, oxygen and optiomal water and electrolyte charging.

A device for transferring EGR gasses from the exhaust collector of a supercharged internal combustion engine to its inlet conduit includes, besides a supercharge unit, a venturi device having the purpose of sucking the EGR gasses from the exhaust collector into the inlet conduit in order to overcome the high gas pressure in the pressurized charging air in this conduit. In order to adjust the amount of sucked-in EGR gas to the different load points, under which the engine works, an injector tube is arranged in the inlet section to the canal of the venturi device, through which injector tube the EGR gasses are led into the inlet conduit. The free end of this injector tube delimits, together with the surrounding canal wall, a ring-shaped passage, whose cross-sectional area may be varied by an axial relative motion between the injector tube and the venturi device.

The invention discloses a rankine cycle and temperature difference power generating module combined-type residual heat recovery system suitable for an internal combustion engine. The system comprises an intermediate temperature residual heat recovery subsystem and a low temperature residual heat recovery subsystem; a hydraulic pump, an evaporator, an over-heating device, an expander, a condenser and a liquid storage device in the intermediate temperature residual heat recovery subsystem are sequentially connected, and the intermediate temperature residual heat in the internal combustion engine is recycled by adopting a rankine cycle technology by the intermediate temperature residual heat recovery subsystem; tail gas emitted by a turbine end of a turbosupercharger is taken as a heat source for the evaporator; tail gas of an EGR (exhaust gas recirculation) system of the internal combustion engine is taken as a heat source for the over-heating device; the expander is connected with a power generator through a crankshaft of the expander, and the power energy output end of the power generator is connected with an energy recovery device; and in the low temperature residual heat recovery subsystem, three semi-conductor temperature difference power generating modules are adopted to recycle the tail gas heat at the outlet end of the evaporator of the intermediate temperature residual heat recovery subsystem, the heat of the supercharge air at the end port of a gas compressor of the turbosupercharger and the heat of the cooling water of a motor. According to the invention, the rankine cycle and the temperature difference power generating module are adopted to be combined to recycle the residual heat of the internal combustion engine, so that not only is the fuel oil economy of the internal combustion engine improved, but also the volume of the integral residual heat recovery system is reduced.

The present gas internal combustion type nailing machine is provided with: a striking cylinder for slidably accommodating a striking piston therein; a combustion chamber formed in an upper side and capable of being opened and closed; a compressor for supercharging compressed air into the combustion chamber; a fuel supply device for supplying a fuel gas into the combustion chamber; and a safety device for preventing the nailing machine from being driven for ignition when the supercharge pressure of the compressed air exceeds a set pressure value.

The invention discloses a minitype skid-mounted single-level mixed refrigerant natural gas liquefaction system and a method thereof. The method comprises the steps that natural gas is compressed and cooled by a natural gas supercharge skid; impurities are removed from the natural gas by a deacidification and dehydration skid; the natural gas is cooled by a first stage heat exchanger, then enters a heavy hydrocarbon separator, is cooled and liquefied by a second stage heat exchanger after heavy hydrocarbon is removed, and enters a liquefied natural gas separator after depressurized to liquefied natural gas storage pressure by a throttling valve, so as to form liquefied natural gas; flash steam returns to the heat exchangers to provide cooling capacity; a mixed refrigerant enters a second stage gas-liquid separator after supercharged and cooled by a mixed refrigerant compression skid; the gas phase refrigerant is throttled and cooled after cooled by the two heat exchangers, and provides the cooling capacity for the second stage heat exchanger; and the liquid phase refrigerant is throttled and cooled by the throttling valve after cooled by the first stage heat exchanger, and mixed with the refrigerant from the second stage heat exchanger to provide the cooling capacity for the first stage heat exchanger. The system and the method are simple in a liquefaction process flow and low in energy consumption, facilitate the equipment skidding, and have better adaptability to different gas sources simultaneously.

The invention discloses an integrated continuous gas-driving hydraulic force booster, comprising a gas-liquid boosting cylinder, a hydraulic check valve, a two-position four-way pneumatic control reversing valve, a pneumatic check valve and a silencer, wherein the gas-liquid boosting cylinder is a double-action boosting cylinder; two big pistons and two small pistons are arranged on a piston rod of the gas-liquid boosting cylinder; the two small pistons and the cylinder body form two oil cavities; the two big pistons and the cylinder body form four air cavities; and the middles of the two air cavities on two sides are provided with two travel signal ports. If the pistons and the piston rods of the boosting cylinder move rightwards, the travel information of the pistons and the piston rod is fed back to the reversing valve to cause the reversing valve to reverse by the control of the pneumatic check valve in the mode of pressure air mode when the right big piston crosses the right travel signal port; the pistons and the piston rod of the boosting cylinder can be reversed because of the reversal of the pneumatic control reversing valve; and thus, the pistons and the piston rod of the boosting cylinder can be automatically reversed on the tail end of the travel of the pistons and the piston rod. The device disclosed by the invention has the advantages of compact structure and big supercharge ratio, automatic reversal can be realized, and uninterrupted oil supply can be realized.

The invention relates to a plate heat exchanger forming between its plates a first flat flow tube in which a first fluid circulates between a first inlet orifice and a first outlet orifice, and a second flat flow tube in which a second fluid circulates between a second inlet orifice and a second outlet orifice. The two flat tubes form parallel arms which extend in a longitudinal direction (L) perpendicular to a transverse air flow traversing the heat exchanger, the first tube being upstream in the air flow and the second tube being downstream.

The heat exchanger support system (34, 36, 40) consists of a frame (2) comprising horizontal faces (4, 6) and vertical faces (8, 10) furnished with fixing means (42, 50, 72, 74, 80) for fixing heat exchange components such as a condenser (34), an engine cooling radiator (36), a motor-fan unit (38) and a supercharge air radiator (40). Each component is fixed directly to the frame (2) independently of the other components. The frame also comprises attachment elements (28, 30) allowing it to be mounted on a motor vehicle chassis via flexible vibration-damping means.

The invention provides a preignition control method for a supercharge non-direct-injection gasoline engine. The preignition control method includes the steps that during calibrating and matching of an engine pedestal, the threshold value A generated when super detonation happens is calibrated according to the pressure of an engine cylinder and the intensity of detonation sounds; whether super detonation happens or not is judged according to whether an engine water temperature signal, an engine rotating speed signal and an engine relative inflation load signal exceed the limitation or not and whether a detonation sound intensity signal B is larger than A or not; when a controller judges that super detonation happens, the inflation load of the engine is controlled to be reduced, and the rich mixture air-fuel ratio is increased; and after the calibration time continues and no super detonation is detected, the controller can recover the due operation conditions within the calibration time. According to the preignition control method, the probability of occurrence of super detonation can be effectively reduced, and a whole vehicle is better in reliability and comfort.

The invention relates to a combustion engine equipped with a dual supercharging system in which a mechanical compressor is driven by an electric motor. The method controls a combustion engine with the electric motor being controlled by determining a rotational speed setpoint for positive-displacement compressor using a supercharge volume filling model.

The invention relates to a method for controlling an electric exhaust gas bypass valve of a turbocharged engine. The method comprises the following steps: judging whether the operating condition of the engine is in a full supercharge mode or not; if yes, firstly controlling the exhaust gas bypass valve to be closed, and controlling the intake pressure of the engine by controllingvalve phase timing; if the operating condition of the engine is in a non-full pressurization mode, when intake pressure is smaller than basic supercharge pressure, controlling the electric exhaust gas bypass valve of the turbocharged engine to be fully opened, and carrying out the load control by adjusting the degree of the opening of an electronic throttle valve, and when the intake pressure is larger than supercharge pressure, controlling the electronic throttle valve to be fully opened, and carrying out the load control by adjusting the degree of the opening of the electric exhaust gas bypass valve. On the basis of an electric torque structure model, under a certain working condition, the transient response can be improved by closing the exhaust gas bypass valve preferably, and the unstable control of the torque of the turbocharged engine is avoided at the same time.

A method of estimating a formation pressure in a wellbore is provided that in one aspect includes measuring a hydrostatic pressure at a selected location in the wellbore, and estimating supercharge pressure as a function of time using a forward model that utilizes the hydrostatic pressure and at least one property of mud in the wellbore that is a function of time. In another aspect, the method may estimate an initial formation pressure at a selected location in a wellbore by obtaining a hydrostatic pressure and at least three formation pressure measurements at three separate times at the selected location, and estimating the initial formation pressure using the hydrostatic pressure, the three pressure measurements and an internal mudcake parameter.

The invention discloses an engine supercharge control method and a device. The method comprises the steps of: (1) acquiring the rotating speed and the torque of an engine in real time; (2) judging if the rotating speed of the engine is in a first rotating speed range; (3) if so, acquiring a pressure value P1 in an outlet of an air filter and a pressure value P3 in an outlet of a turbocharger; (4) judging if the P3 is equal to n*P1; (5) if not, calculating the actual pressure change rate in the outlet of the turbocharger in the unit time; and (6) obtaining a calibrated pressure value P in the outlet of the turbocharger and calculating a theoretical pressure change rate according to the rotating speed signal and the torque of the engine if the actual pressure change rate is unequal to 0; and opening an electronic supercharger if the pressure value P3 in the outlet of the turbocharger is lower than the calibrated pressure value P and the actual pressure change rate is lower than the theoretical pressure change rate. The method effectively enhances the dynamic response time and the acceleration performance of whole vehicle.

The invention discloses a vacuum supercharge combined prepressing experiment device which comprises a cylinder body, a piston, sealing parts and a pressure measurement pipe, wherein a top cover of the cylinder body is provided with guide openings communicated with the inside of the cylinder body; the piston comprises piston heads and a vacuum pressurizing bin, the vacuum pressurizing bin is provided with an external port connected with an external vacuumizing device and an opening penetrating through the piston heads to be communicated with the inside of the cylinder body; the piston is movably arranged in the cylinder body, the piston heads of the piston are arranged in the cylinder body, the vacuum pressurizing bin extends out of the cylinder body from the guide openings of the top cover of the cylinder body, the piston can descend or ascend in the cylinder body; the sealing parts are arranged on a contact part of the vacuum pressurizing bin and the guide openings of the top cover of the cylinder body, a closed supercharge pressurizing bin is formed among the piston heads, the inner wall of the cylinder body, the top cover and the outer wall of the vacuum pressurizing bin, a pneumatic joint connected with an external pneumatic device is arranged on the top cover of the cylinder cover, corresponding to the supercharge pressurizing bin; and the pressure measurement pipe is communicated with the inside of the cylinder body below the piston heads of the piston. According to the vacuum supercharge combined prepressing experiment device, the overlapped supercharge under a vacuum load can be realized.

The invention discloses a multifunctional natural gas hydrate synthetic reaction method and device. An aeration conduit of a CH4 gas bottle is provided with a supercharge pump; an opening part of the aeration conduit of the CH4 gas bottle is connected with a gas injection opening formed in a top cover of a reaction kettle; the reaction kettle is arranged in a constant-temperature air bathroom; a temperature probe and a pressure sensor on the reaction kettle are connected with an industrial control machine via a data acquisition unit. The multifunctional natural gas hydrate synthetic reaction method and device have the beneficial effects that hydrates of a plurality of different sediment systems can be synthesized at the same time, so that the experiment result is close to the practice; the preparation cycle of hydrate samples is shortened; the efficiency is enhanced; the accuracy and the reliability of the experiment result are increased.

The invention relates to an anti-explosion and ventilation control system of a pneumatic control motor. A pneumatic control loop module is connected with an air source, and the pneumatic control loop module is provided with a high flow rate purging pattern, a leakage compensation pattern and a small-flow rate purging pattern, and is communicated with the air inlet of an motor shell; a pressure relief valve module is connected with the pneumatic control loop module, and the pressure relief valve module has the function of opening or closing the vented exhaust port of the motor shell; an anti-explosion junction box is internally provided with a junction terminal which is used for alarming and also used in an interlock circuit, and the junction terminal is connected with an anti-explosion alarm/ supercharge switch and a motor interlocking switch which are positioned in the pneumatic control loop module through anti-explosion cables. According to the invention, pneumatic elements are adopted, the defects existing in the ventilation control system of the traditional motor are overcome, and the design and manufacture costs of the system are lowered on the basis of ventilation and leakage compensation of the motor under inflammable and explosive dangerous environments.

The invention discloses a throttling orifice hydraulic buffer. It includes buffer body, inner and outer back springs, throttling wall, supercharge sliding sleeve, buffering contact. The cylindrical surface of the buffering contact and the throttling wall is set two grooves set throttling orifice to block oil moving. The invention has impact velocity automatic adaptability, can keep shock absorbing capacity stable by adapting the variety of the hydraulic oil viscosity under major temperature variety.

The invention provides an aeroengine high-supercharge-ratio fan test piece bearing chamber sealing system comprising an intermediate case (1), a bearing case (2) and a rotating shaft (3). The intermediate case (1) is cooperated with the rotating shaft (3) to be installed through the bearing case (2). Two air supply passages are arranged between the intermediate case (1) and the bearing case (2). One end of the first air supply passage (11) is used for introducing air from a first external air source, and the other end penetrates out of the bearing case (2) to be communicated with a front sealing chamber (7). One end of the second air supply passage (12) is used for introducing air from a second external air source, and the other end penetrates out of the bearing case (2) to be communicated with a rear sealing chamber (8). An exhaust passage (10) and a throttling device controlling the size of the opening of the exhaust passage (10) are also arranged on the intermediate case (1). Meanwhile, a sealing device is arranged on the rotating shaft (3) so as to realize sealing of a bearing chamber (4). According to the sealing system, oil leakage of the test piece is ensured not to occur under the condition of high pressure ratio.

The invention discloses a turbocharging control method and system, and an engine. The control method comprises the steps that the rotating speed of the engine and the position signal of an acceleratorpedal are read, and the change rate of the position signal of the accelerator pedal is calculated according to the position signal of the accelerator pedal; if the change rate of the position signalof the accelerator pedal is greater than a signal threshold value or the change rate of the rotating speed of the engine is greater than a rotating speed threshold value, a turbocharger goes into theinstantaneous condition; the turbocharger goes into the steady-state condition if the change rate of the position signal of the accelerator pedal is less than the signal threshold value or the changerate of the rotating speed of the engine is less than the rotating speed threshold value; if the turbocharger is under the steady-state condition, an engine management unit reads a demand signal and calculates the supercharge pressure; under the condition of determining the supercharge pressure ratio, the working point of the turbocharger is changed thorough an electronic actuator; if the turbocharger is under the instantaneous condition, the engine management unit reads the demand signal and calculates the supercharge pressure; under the condition of determining the supercharge pressure ratio, closed-loop control is conducted through the electronic actuator to improve the turbocharging efficiency. Through the turbocharging control method, the control precision and the response efficiencycan be improved.

The invention provides a method for preparing a doping-type crystalline titanium dioxide photoelectrode at low temperature by virtue of a microwave auxiliary reaction supercharge method and belongs to a low-temperature synthesis method of a solar battery photoelectrode. The preparation method comprises the following steps: 1, adding a titaniferous precursor into alcohol, uniformly mixing, then adding an adulterant, stirring, then adding a hydrolysis inhibitor, and slowly dropwise adding deionized water, thus obtaining a mixed solution; 2, heating the mixed solution in a water bath, stirring, refluxing and reacting until the reaction is over, thus obtaining a titaniferous and element-doped colloid; 3, cooling the colloid to room temperature, then transferring the cooled colloid into a high-pressure vessel, adding a decomposition agent and then rapidly sealing the vessel; 4, placing the vessel into a microwave reaction device, rapidly heating, keeping stirring, filtering reaction products, washing with deionized water, and drying, thus obtaining doping-type crystalline titanium dioxide. The method provided by the invention has the advantages that the doping-type crystalline titaniumdioxide with grains of about 120nm can be prepared at low temperature; the dispersibility is better; the preparation process time is shorter; and long-term follow-up high-temperature crystallization treatment is not required.

The invention provides a protection method and a protection device for an engine and an engine supercharger. The protection method for the engine supercharger comprises the following steps that: a first set supercharge pressure data acquired from a pressure-temperature sensor on an air inlet tube of the engine is preset to a pressure warning value, a second set supercharge pressure data acquired from the pressure-temperature sensor is preset to a torsional limit value; the supercharge pressure data of the pressure-temperature sensor is acquired in real time when the engine is in a stable working condition; a safety alarm instruction is sent when the supercharge pressure data achieves the pressure warning value; a torsional limit instruction is generated when the supercharge pressure data achieves the torsional limit value. According to the embodiments of the invention, the pressure value of the air inlet tube of the engine can be monitored in real time, thus guaranteeing that an alarm can be sent or the torsion limit can be performed when the deflation valve of the supercharger is failed, therefore, potential safety hazards due to the faults of the deflation valve of the supercharger are effectively eliminated.