252results about How to "Promote warm-up" patented technology

The catalyst warming control apparatus of the present invention is provided for a hybrid vehicle having an internal combustion engine, a generator for generating electric power from the output from the internal combustion engine, a power storage unit for storing electric power generated by the generator, and an electric motor driven by the electric power stored in the power storage unit, the hybrid vehicle being driven by at least one of the outputs from the internal combustion engine and the motor. The catalyst warming control apparatus includes a temperature detector for detecting the temperature of a catalyst or a value relating to the same; a first comparison circuit for comparing the detected result from the temperature detector with a preset reference value; and a control circuit for allowing the generator to generate electric power and to store the power in the power storage unit when the internal combustion engine is driven, and when the detected result by the temperature detector is equal to or below the reference value according to the output from the comparison circuit.

This invention relates to a control device for a hybrid vehicle power transmitting apparatus. A heat generation control is executed to increase a heat generation amount of an electric motor M1 when a differential portion 11 is placed in a non-differential state and a temperature of a shifting mechanism 10 is less than a given transmitting apparatus temperature determining value TEMP₁₁. This allows the first electric motor M1 to develop a heat with which the temperature of a shifting mechanism 10 is promptly raised, thereby promptly completing a warm-up of the shifting mechanism 10 to achieve improved fuel consumption.

A hybrid vehicle including an engine having a catalyst in an exhaust passage, first and second motor generators, a battery and a power transmission mechanism coupling a drive shaft, the engine and the motor generators by a gear mechanism such that torque is transmittable, and its control method, are provided. When a coolant temperature is a threshold or below, catalyst warm-up operation for starting the engine and retarding an ignition timing by a retardation amount is executed. When a battery level is a threshold or below, forced charging operation for starting the engine and charging the battery by driving the first motor generator is executed. During the forced charging operation, an engine load is changed on the basis of the battery level. When the catalyst warm-up operation is executed during the forced charging operation, the retardation amount for facilitating warm-up of the catalyst is reduced as the engine load increases.

A composite oxide includes CeO₂, ZrO₂ and a metallic oxide being free from reacting with CeO₂ and ZrO₂ at 700° C. or more, preferably at 900° C. or more and further preferably at 1,000° C. or more. The composite oxide has a regulatory oriented phase, such as a pyrochlore phase, etc., in which at least a part of Ce cations and Zr cations are oriented regularly. The composite oxide makes a catalytic support. The CeO₂—ZrO₂ composite oxide and the reaction-free metallic oxide make barriers each other which suppress the granular growth when the composite oxide is subjected to high-temperature heat in a reducing heat treatment to form the regulatory oriented phase. The regulatory oriented phase improves the oxygen storage-and-release capability of the catalytic support. Thus, it is possible to simultaneously attain a large a specific surface area and a high oxygen storage-and-release capability.

A heat pressing method for polyethylene plant fiber composite material relates to a method for manufacturing plant fiber material. The invention solves the problems that only fibril can be applied, plant format is narrower, straw is liable to thermolysis and charring and the mechanical properties of plant manufactured by pre-heat pressing are poor in the production of WPC in the manner of extraction. The method of the invention has the steps that: PE plastic fiber is mixed with crushed plant aggregates to obtain mixture that is paved into a plate base; the plate base is pre heated under a pressure of 1 to 3 MPa and at a temperature of 170 to 190 CEG D; the plate base is kept under a pressure of 4 to 6 MPa for 8 to 15mins; and at last, the plate base is cooled to 70 to 80 CEG D under a pressure of 3 to 6 MPa; and after pressure relief, the plank is obtained. The flexural strength of the plank manufactured in the method of the invention is 20 MPa. The invention adopts the polyethylene in fiber configuration and the crushed aggregates of the plant and the fiber is evenly mixed and has high productivity. In addition, the crushed aggregates of the plant and the fiber can be prevented from being deteriorated and darkened due to high temperature.

The invention discloses a ceramic casting system in the technical field of casting. A sprue, a cross gate and an ingate of the ceramic casting system are obtained by connection of several equal-diameter straight pipes, a fourway pipe, elbow pipes, variable-diameter straight pipes, t-branch pipes and flat mouth pipes made of a ceramic material. The sprue and the inlet section of the cross gate are obtained by connection of the equal-diameter straight pipes. The upward opening of the fourway pipe is connected to a lower end of the sprue. Two side openings of the fourway pipe are connected to one end of the inlet section of the cross gate. The elbow pipes are connected between the inlet section and an outlet section of the cross gate. The outlet section of the cross gate is obtained by connection of the equal-diameter straight pipes and the t-branch pipes. The equal-diameter straight pipes are connected to straight-through openings of the t-branch pipes. The ingate is obtained by connection of the variable-diameter straight pipes and the flat mouth pipes. Large-diameter ends of the variable-diameter straight pipes are connected to side openings of the t-branch pipes and each one of small-diameter ends of the variable-diameter straight pipes is connected to an end of the corresponding flat mouth pipe. Sides of the flat mouth pipes are provided with rectangular outlets communicated with a casting cavity. The ceramic casting system solves the problem of sand washing of the existing casting system in large-scale part casting, improves casting quality and is suitable for large-scale part casting.

The invention relates to an engine-cooling system comprising a radiation branch and a heat preservation branch. The heat preservation branch comprises a heat preservation water tank, a bidirectional electric water pump, a pumping electromagnetic valve, an affusion electromagnetic valve, a pumping pipe, an affusion pipe, a backwater aeration pipe, a water quantity display, a water quantity displaysensor, a central controller, and the like, can preserve the heat of cooling liquid preserved in the heat preservation water tank when water in an engine reaches a normal temperature and full draws the high-temperature cooling liquid in the engine to the heat preservation water tank for preserving heat when the engine stops working so that the high-temperature cooling liquid in the heat preservation water tank preheats the engine when the engine is started up next time. The cooling system enables the cold-startup engine in an ideal temperature without external energy, effectively solves the problems of startup difficulties caused by the lower temperature of the engine, severe emission pollution, fuel waste, severe part abrasion, and the like and avoids causing energy waste during using the external energy for preheating.

The invention relates to an underground double-layered oil tank and a preparation method thereof and provides the underground double-layered oil tank and the preparation method thereof. The underground double-layered oil tank comprises an inner-layer steel tank and a housing, wherein a vacuum interlayer is formed between the inner-layer steel tank and the housing; a detection device for detecting the liquid leakage of the inner-layer steel tank and the housing is arranged in the vacuum interlayer; and the detection device is in remote-communication connection with a control room. The underground double-layered oil tank and the preparation method thereof have the advantages of simple structure, convenience in preparation, low production and maintenance cost, high automation degree, safe and reliable operation, short preparation period and the like, and is conductive to environmental protection.

An inverter device includes an inverter circuit, which has switching elements in a bridge connection, a capacitor, which is connected in parallel to the input side of the inverter circuit, a temperature detector, which detects the temperature of the capacitor, a battery charge information acquisition section, which acquires charge information related to a battery connected to the input side of the inverter circuit, and a warm-up controller. When the temperature of the capacitor detected by the temperature detector is lower than a prescribed temperature, the warm-up controller determines a warm-up current based on the battery charge information acquired by the battery charge information acquisition section and the temperature of the capacitor detected by the temperature detector, and controls the switching elements of the inverter circuit to supply the warm-up current to the coil of an electric motor connected to the output side of the inverter circuit.

One or more of three different measures are taken to preheat a wafer before it is loaded into direct contact with a wafer holder, in order to provide optimal throughput while reducing the risk of thermal shock to the wafer. The first measure is to move the wafer holder to a raised position prior to inserting the wafer into the reaction chamber and holding the wafer above the wafer holder. The second measure is to provide an increased flow rate of a heat-conductive gas (such as H_s purge gas) through the chamber prior to inserting the wafer therein. The third measure is to provide a power bias to radiative heat elements (e.g., heat lamps) above the reaction chamber.

The present invention relates to a surfacing method of turbine low-pressure heater tube-plate and shell body and water chamber connection position, belonging to a welding method of turbine low-pressure heater tube-plate and connection component. Said surfacing method is characterized by adopting the following steps: adopting 20MnMo or 16MnR alloy steel forged piece whose thickness is 90-240 mm as turbine low-pressure heater tube-plate; making two ring recessed grooves on said forged piece, the depth of every ring recessed groove is 20-30 mm; preheating and layer-by-layer surfacing carbon steel in two ring recessed grooves, the bead interlayer temperature is 100-150 deg.C, after the surfacing operation is completed, covering with ashestos cloth, cooling to normal temperature, making postweld heat treatment, tempering temperature is 600-630 deg.C and tempering for 10-25 h.

The invention discloses a petroleum coke calcining rotary kiln, which comprises a rotary kiln(9); an insert plate valve(1) is arranged below a calcining front chamber; an adhesive tape constant feeder(2) is arranged below the insert plate valve, and an adhesive tape conveyer(3) is arranged behind the adhesive tape constant feeder (2) and connected with the rotary kiln(9) by an oblique cutting feed tipping tube of an electric insert plate valve(6); the tail part of the rotary kiln(9) is connected with a dust deposition chamber(8), and the head part of the rotary kiln(9) is connected with a cooling machine(16) and provided with a burner nozzle(13) and a burner nozzle hanger(14); the petroleum coke calcining rotary kiln is also provided with a one-time combustion fan(10) matched with the burner nozzle; and a dust-containing waste gas processing system(15) is arranged beside the cooling machine(16). The petroleum coke calcining rotary kiln has the advantages of improving the unit volume capacity, greatly enhancing comprehensive utilization of waste heat and adaptability of other calcining materials such as needle coke, anthracite and the like, reducing burning loss of charcoal, saving raw materials and energy, improving automatization level and reducing labor intensity of a worker.

When the hydrogen separating membrane is in a low temperature condition, a lean bus operation is carried out in a reformer in order to conduct warm-up while suppressing generation of hydrogen. At the timing t1 where the temperature of the hydrogen separator membrane has reached a temperature at which hydrogen embrittlement does not occur, reforming is initiated. In such a condition, oxygen is supplied to hydrogen which is permeated through the hydrogen separator membrane for burning the hydrogen, so as to further facilitate the warm-up. At the timing t2 where the temperature has reached an operation temperature, the supply of oxygen in a purge side is stopped so as to stop the burning of hydrogen, and an operation mode is shifted to a normal operation.

The invention relates to the technical field of alloy optimization, and particularly discloses a structure grain refining method for arc additive manufacturing by adopting aluminum-silicon alloy. Themethod comprises the following steps that Al-5Ti-1B intermediate alloy is prefabricated into thin sheets, cleaned and dried; the thin sheets are placed between the adjacent aluminum-silicon alloy layers, and aluminum-silicon alloy arc additive manufacturing is carried out by adopting an arc additive manufacturing method, wherein the mass of the thin sheets placed in each layer is 1-5% of the massof the aluminum-silicon alloy in the corresponding layer.. According to the structure grain refinement method for arc additive manufacturing by adopting the aluminum-silicon alloy, coarse columnar crystals can be converted into fine equiaxed crystals, and the effects of crystal form conversion and grain refinement are achieved.

The invention provides a temperature regulating system in methylamine synthesis, wherein the temperature regulating system comprises a low-temperature heat exchanger; a first low-temperature outlet ofthe low-temperature heat exchanger communicates with a first medium-temperature inlet of an intermediate heat exchanger, and a first medium-temperature inlet of the intermediate heat exchanger communicates with a first high-temperature inlet of a high-temperature heat exchanger; a first high-temperature outlet of the high-temperature heat exchanger communicates with an inlet of the top of a methylamine synthesis tower, an outlet of the bottom of the methylamine synthesis tower communicates with an inlet of a crude product gas-liquid separation tank, the top end of the crude product gas-liquidseparation tank communicates with a condensation tank, and the bottom end communicates with a rectification system; an outlet of the rectification system communicates with a second medium-temperatureinlet of the intermediate heat exchanger. According to the system, the temperature of a material in the reaction process is recovered for heating a raw material at the inlet of a methylamine reactiontower, so that the raw material can reach the required initial temperature, and no extra energy and cost are consumed; in addition, the system can control the temperature in the reaction tower in time, the phenomenon that the temperature rises drastically is prevented, and the safety problem is effectively avoided.

An inverter device includes an inverter circuit, which has switching elements in a bridge connection, a capacitor, which is connected in parallel to the input side of the inverter circuit, a control device, which controls the inverter circuit, a temperature detector, which detects the temperature of the capacitor, a degree-of-deterioration determiner, which determines the degree of deterioration of the capacitor, and a warm-up controller. When the temperature of the capacitor detected by the temperature detector is lower than a prescribed temperature, the warm-up controller controls the switching elements of the inverter circuit to supply a direct current set based on the degree of deterioration and the temperature of the capacitor to the coil of an electric motor connected to the output side of the inverter circuit.

Provided is a fuel cell system. In a case where a gas supply controller (24) of the FC (Fuel Cell) system (12) determines that the temperature of an FC (40) is a predetermined temperature or less, the gas supply controller fixes the FC voltage to a voltage value within a voltage region where degradation is relatively small, the voltage value being below a voltage range where an oxidation-reduction proceeds. Further, the amount of a gas supplied to the FC (40) is changed in accordance with electric power required by a load (30).

The invention discloses a low-temperature cold start method and system for a hydrogen fuel cell. The method comprises the following steps of setting a target heating rate and a target temperature of the fuel cell; calculating a target output current according to the target heating rate; calculating a target air flow and a target hydrogen flow; starting the fuel cell when a PTC heats a fuel cell cooling system; achieving the target air flow by adjusting the rotating speed of an air compressor; achieving the target hydrogen flow by adjusting a proportional valve; and after the temperature of thefuel cell reaches the target temperature, adjusting the ratio of the air flow to the hydrogen flow to a normal output power corresponding value. According to the low-temperature cold starting methodand system for the hydrogen fuel cell, the concentration difference overpotentials of the hydrogen side and the oxygen side of the fuel cell are used for lowering the external output efficiency of thefuel cell, the chemical energy as much as possible is converted into the heat energy to be used for heating a fuel cell stack body, so that the fuel cell is rapidly warmed up.