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32results about How to "Lower target temperature" patented technology

Refrigerator

The invention discloses a refrigerator which comprises a refrigerating chamber and a preservation chamber with a cooling air duct, wherein the cooling air duct comprises an air inlet duct and an air return duct; the air inlet duct is provided with an air mixing duct; an air inlet of the air mixing duct is communicated with a first air duct of which the cold air temperature is lower than the target temperature of the preservation chamber, and is also communicated with a second air duct of which the cold air temperature is higher than that of the first air duct; an air outlet of the air mixing duct is communicated with an air inlet of the preservation chamber; the air return duct of the cooling air duct is communicated with an air return inlet of the preservation chamber. According to the refrigerator, the air mixing duct is used for mixing low-temperature cold air in the first air duct and cold air in the second air duct to form mixed air of which the temperature is slightly lower than the target temperature of the preservation chamber, so that the mixed air can be prevented from being frosted in a transmission process; in addition, the volume of the formed mixed air is large, and the temperature of the mixed air is close to the target temperature of the preservation chamber, so that the temperature difference of the front and rear sides of the preservation chamber can further be reduced, and the temperature uniformity of the preservation chamber can be ensured.
Owner:SUZHOU SAMSUNG ELECTRONICS CO LTD +1

Oxygen sensor controller and oxygen sensor control method

In control over an oxygen sensor, a temperature of the oxygen sensor, which detects a concentration of oxygen in exhaust gas from a combustion chamber in which anode off-gas of a fuel cell is burned, is adjusted to a target temperature, and an output of the oxygen sensor is calibrated. When the temperature of the oxygen sensor is adjusted to the target temperature, a plurality of the target temperatures are set, a calibration target temperature higher than or equal to a first predetermined temperature is selected from among the plurality of target temperatures when the output of the oxygen sensor is calibrated, and a target temperature, which is lower than the calibration target temperature, is selected from among the plurality of target temperatures during power generation of the fuel cell.
Owner:TOYOTA JIDOSHA KK

Rapid stabilization method for scale factors of optical fiber gyroscope

The invention discloses a rapid stabilization method for scale factors of an optical fiber gyroscope. The method comprises the following steps: equally dividing a light source working temperature range into sections; selecting an arithmetic mean temperature point of each section as a characteristic temperature point of the section; storing driving current and a scale factor of each characteristic temperature point into an inner ROM (Read Only Memory) of the optical fiber gyroscope; when the optical fiber gyroscope is started, setting a target temperature according to an environment temperature and continually setting the driving current of a light source; and when the target temperature and the driving current reach pre-set values, reading the scale factor under the target temperature to enable the optical fiber gyroscope to work. The working temperature of the optical fiber gyroscope is divided into the sections; the target temperature of light source tube core temperature control is set according to the environment temperature when the optical fiber gyroscope is started and the distance between the target temperature of the light source tube core temperature control and the environment temperature is greatly reduced; the temperature of a light source tube core is stabilized in short time; and meanwhile, the driving current is applied to the light source so that the optical fiber gyroscope can rapidly enter a stable working state and the starting time of the optical fiber gyroscope under high-temperature and low-temperature conditions is greatly shortened.
Owner:ZHEJIANG UNIV

Vehicle air conditioner

In a vehicle air conditioner, a compressor is driven by a vehicle engine when an actual temperature of an evaporator is higher than a basis temperature that is higher than a target temperature by a predetermined temperature, and is driven by an electrical motor when the actual temperature of the evaporator is lower than the basis temperature. The predetermined temperature is set to be higher as the target temperature of the evaporator decreases such that the basis temperature is not higher than a comfortable limit temperature. Accordingly, the compressor can be driven by the electrical motor in a range where the actual temperature can be controlled to be not higher than the comfortable limit temperature. Therefore, fuel consumption efficiency of the engine can be improved, while a minimum of cooling capacity can be ensured.
Owner:DENSO CORP

Control device for internal combustion engine

A control device for an internal combustion engine includes a knock control system, a cooling system, and an electronic control unit. The knock control system is configured to ignite a spark plug an ignition crank angle obtained by retarding the ignition crank angle in response to an occurrence of the knocking. The electronic control unit is configured to supply a command value corresponding to a target value of a cooling parameter to the cooling system such that the cooling system performs cooling of the internal combustion engine according to the command value. The electronic control unit is configured to correct the command value based on a KCS learned value such that as the KCS learned value increases, a correction amount for correcting the command value increases in correction amount in a direction in which a cooling capacity of the cooling system increases.
Owner:TOYOTA JIDOSHA KK

Increased beam output and dynamic field shaping for radiotherapy system

ActiveUS11007381B2Improved field shapingLower x-ray target temperatureX-ray tube electrodesCathode ray concentrating/focusing/directingRadiologyRay
Systems and methods provide radiotherapy treatment by focusing an electron beam on an x-ray target (e.g., a tungsten plate) to produce a high-yield x-ray output with improved field shaping. A modified electron beam spatial distribution is employed to scan the x-ray target, such as a 2D periodic beam path, which advantageously lowers the x-ray target temperature compared to the typical compact beam spatial distribution. As a result, the x-ray target can produce a high yield output without sacrificing the x-ray target life span. The use of a 2D periodic beam path allows a much colder x-ray target functioning regime such that more dosage can be applied in a short period of time compared to existing techniques.
Owner:VARIAN MEDICAL SYSTEMS

Control method of multi-connected air conditioner

The invention relates to the technical field of air conditioning, and specifically provides a control method for a multi-connected air conditioner, aiming at controlling the indoor unit in a warm-up room to switch from a warm-up mode to a normal heating mode at a reasonable and accurate timing. The control method first turns on or off the fan of the indoor unit reaching the greenhouse alternately with a preset stop-on cycle to speed up the cooling speed of the indoor unit reaching the greenhouse, and then according to the comparison result between the indoor ambient temperature value and the target temperature value, Choose to switch the indoor unit directly from the warming mode to the normal heating mode, or increase the start-up time of the fan of the indoor unit and keep the downtime of the fan of the indoor unit unchanged to reduce the temperature of the indoor unit. The ambient temperature around the air conditioner is used to weaken the interference of the heat radiation of the indoor heat exchanger on the detection value of the indoor ambient temperature sensor, so that the air conditioner can control the indoor unit to switch from the high temperature mode to normal heating at a reasonable and accurate time mode to ensure that the actual indoor ambient temperature is always within the target temperature range.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1

a refrigerator

The invention discloses a refrigerator which comprises a refrigerating chamber and a preservation chamber with a cooling air duct, wherein the cooling air duct comprises an air inlet duct and an air return duct; the air inlet duct is provided with an air mixing duct; an air inlet of the air mixing duct is communicated with a first air duct of which the cold air temperature is lower than the target temperature of the preservation chamber, and is also communicated with a second air duct of which the cold air temperature is higher than that of the first air duct; an air outlet of the air mixing duct is communicated with an air inlet of the preservation chamber; the air return duct of the cooling air duct is communicated with an air return inlet of the preservation chamber. According to the refrigerator, the air mixing duct is used for mixing low-temperature cold air in the first air duct and cold air in the second air duct to form mixed air of which the temperature is slightly lower than the target temperature of the preservation chamber, so that the mixed air can be prevented from being frosted in a transmission process; in addition, the volume of the formed mixed air is large, and the temperature of the mixed air is close to the target temperature of the preservation chamber, so that the temperature difference of the front and rear sides of the preservation chamber can further be reduced, and the temperature uniformity of the preservation chamber can be ensured.
Owner:SUZHOU SAMSUNG ELECTRONICS CO LTD +1

A Fast Stabilization Method of Fiber Optic Gyroscope Scale Factor

The invention discloses a rapid stabilization method for scale factors of an optical fiber gyroscope. The method comprises the following steps: equally dividing a light source working temperature range into sections; selecting an arithmetic mean temperature point of each section as a characteristic temperature point of the section; storing driving current and a scale factor of each characteristic temperature point into an inner ROM (Read Only Memory) of the optical fiber gyroscope; when the optical fiber gyroscope is started, setting a target temperature according to an environment temperature and continually setting the driving current of a light source; and when the target temperature and the driving current reach pre-set values, reading the scale factor under the target temperature to enable the optical fiber gyroscope to work. The working temperature of the optical fiber gyroscope is divided into the sections; the target temperature of light source tube core temperature control is set according to the environment temperature when the optical fiber gyroscope is started and the distance between the target temperature of the light source tube core temperature control and the environment temperature is greatly reduced; the temperature of a light source tube core is stabilized in short time; and meanwhile, the driving current is applied to the light source so that the optical fiber gyroscope can rapidly enter a stable working state and the starting time of the optical fiber gyroscope under high-temperature and low-temperature conditions is greatly shortened.
Owner:ZHEJIANG UNIV

Control method of multi-connected air conditioner

The invention relates to the technical field of air conditioning, and specifically provides a control method for a multi-connected air conditioner, aiming at controlling the indoor unit in a warm-up room to switch from a warm-up mode to a normal heating mode at a reasonable and accurate timing. The control method first turns on or off the fan of the indoor unit reaching the greenhouse alternately with a preset stop-on cycle to speed up the cooling speed of the indoor unit reaching the greenhouse, and then according to the comparison result between the indoor ambient temperature value and the target temperature value, Choose to make the indoor unit in the greenhouse directly switch from the warming mode to the normal heating mode, or reduce the downtime of the fan of the indoor unit in the greenhouse and keep the start-up time of the fan in the indoor unit unchanged to reduce the temperature in the greenhouse. The ambient temperature around the air conditioner is used to weaken the interference of the heat radiation of the indoor heat exchanger on the detection value of the indoor ambient temperature sensor, so that the air conditioner can control the indoor unit to switch from the high temperature mode to normal heating at a reasonable and accurate time mode to ensure that the actual indoor ambient temperature is always within the target temperature range.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1

Spray washer nozzle for vehicle

A spray washer nozzle for a vehicle may include a nozzle body installed in a hood of a vehicle as a unit for ejecting washer liquid to a windshield, and connected to a hose for supplying the washer liquid and fixedly installed in a hood panel at the same time, and a spray nozzle chip having a passage therein and inserted into a head part of the nozzle body, in which a heat emitter is inserted into and mounted to the passage formed in the interior of the spray nozzle chip such that washer liquid flowing through the passage of the spray nozzle chip is heated while directly contacting the heat emitter.
Owner:HYUNDAI MOTOR CO LTD +1
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