38results about How to "Maintain temperature range" patented technology

A heat generation amount estimation unit acquires the number of sub processors currently in operation, acquires the current operating frequency, and estimates the amount of heat generation after a period Δt. A temperature control unit estimates the temperature after the period Δt based on the current temperature input from a temperature sensor and the amount of heat generation estimated, and compares it with a predetermined threshold temperature. If the predetermined threshold temperature is reached, the temperature control unit acquires the number of sub processors available in parallel after the period Δt from a task management unit, and consults a performance table to determine which operation point to shift to. A sub processor control unit and a frequency control unit switch to the number of sub processors in operation and the operating frequency accordingly. The performance table lists possible operation points in order of performance.

A heat controlled ultraviolet light apparatus includes a source of ultraviolet light, a cover, and a heating or cooling element that heats / cools the space or gap between the ultraviolet light source and the cover. Accordingly, the ultraviolet light source may be maintained at an optimal temperature thereby maximizing the efficiency of the ultraviolet light source in producing ultraviolet radiation. The apparatus may further include a temperature sensor and a control circuit to automatically control production of heat / cooling by the element based upon the ambient temperatures experienced by the ultraviolet light source during use. Methods are also provided for sanitizing heating and cooling coils of various devices such as an HVAC system, and cooling systems such as a refrigeration unit and an evaporative cooler.

A temperature regulating device capable for environmentally adaptable transport of transporting temperature sensitive products is provided including an insulated casing having an interior portion and a temperature regulating device for maintaining the interior portion at a temperature range lower than ambient temperature exterior to the interior portion, wherein the temperature regulating device maintains the lower temperature without external power sources. The temperature device is personally portable and includes a backpack attachment for transporting by a single individual.

A thermostat for use in the coolant passage of an internal combustion engine includes a valve seat and a valve plate with an elastomeric seal engaged with the valve seat in a closed condition and movable away from the valve seat in an open condition. The valve plate has a wavy surface disposed below the elastomeric seal that engages the valve seat, wherein the wavy surface is nonplanar with surface variations of at least 300 microns. The wavy valve plate creates a situation where the thermostat operates with two effective modes, a low flow regime for low load conditions where the valve is only traveling between 0 and approximately 1 mm while the wavy plate allows a low coolant flow and a high flow regime (valve fully open) for high engine load situations that require maximum cooling.

An ECU executes a program including the steps of, when an oil level adjustment mode is attained, executing control of the engine speed if an AT oil temperature is higher than an oil temperature threshold value T(1), turning on a “D” lamp of an indicator if the AT oil temperature is higher than an oil temperature threshold value T(2) and the AT temperature is lower than an oil temperature threshold value T(3), flashing the “D” lamp of the indicator if the AT oil temperature is higher than the oil threshold value T(3), and executing normal engine speed control if the AT oil temperature is higher than an oil temperature threshold value T(4).

The invention discloses a hematologic tumor sample transportation and storage box, and belongs to the technical field of medical auxiliary instruments. The box comprises a box body, wherein a sealingring is fixedly connected to an inner cavity of the box body, a water inlet hole is formed in the top of the sealing ring, a water heating cavity is formed between the sealing ring and the box body, asample base is arranged in the inner cavity of the box body in a sleeve mode, a plurality of bottom cylinders are fixedly connected to the top of the sample base, sample isolation cylinders are in threaded connection with the interiors of the bottom cylinders, cross counter grooves are formed in the tops of the sample isolation cylinders, sample uniform frames are inserted among the cross countergrooves, test tube rings are fixedly arranged in the sample uniform frames, buffer springs are fixedly connected to the tops of the test tube rings, and the top of the box body is fixedly provided with a magnetic attracting sealing cover. According to the box, the temperature range in the box can be maintained, samples can be conveniently stored, so that sample test tubes are prevented from being damaged, the box body can be thoroughly cleaned, cleaning and disinfecting are convenient, dismounting is convenient, and maintenance and replacement are convenient.

A method is provided for maintaining the heat in an exhaust after treatment system connected to the exhaust pipe of an internal combustion engine. The engine is used to propel a vehicle and is equipped with a valve-controlled EGR duct for the adjustable recirculation of exhaust gases from the exhaust side of the engine to its induction side. According to the invention, it is detected that neither the braking system nor the throttle control mechanism of the vehicle is activated and that the vehicle is being driven at a speed in excess of a predetermined value. After this, the gas flow through the EGR duct is regulated so that the gas flow to the exhaust aftertreatment system is reduced to a level which is less than about 50% of the gas flow to the exhaust aftertreatment system with shut-off EGR valve.

Methods and systems for water heater system receiving electrical power from an electrical grid. The system includes an electronic processor configured to monitor an average water temperature of the water within a water tank of the system based on a first and second signal from a upper and lower temperature sensor, operate a upper heating element heating an upper portion of the tank and a lower heating element heating a lower portion of the tank in a first operation mode, receiving, via a transceiver, either an add load command or a shed load command from a grid controller, operating the upper heating element and lower heating element in a second mode in response to receiving the add load command, and operating the upper heating element and lower heating element in a third mode in response to receiving the shed load command.