China Manufacturer for TU-1A90 thermal wax actuator for automobile thermostat for Guatemala Importers
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China Manufacturer for TU-1A90 thermal wax actuator for automobile thermostat for Guatemala Importers Detail:
1. Operation Principle
The Thermostatic Wax that has been sealed in shell body induces expansion by a given temperature, and inner rubber seal part drives its handspike to move under expansion pressure to realize a transition from thermal energy into mechanical energy. The Thermostatic Wax brings an upward movement to its handspike, and automatic control of various function are realized by use of upward movement of handspike. The return of handspike is accomplished by negative load in a given returned temperature.
2. Characteristic
(1)Small body size, occupied limited space, and its size and structure may be designed in according to the location where needs to work.
(2)Temperature control is reliable and nicety
(3)No shaking and tranquilization in working condition.
(4)The element doesn’t need special maintenance.
(5)Working life is long.
3.Main Technical Parameters
(1)Handspike’s height may be confirmed by drawing and technical parameters
(2)Handspike movement is relatives to the temperature range of the element, and the effective distance range is from 1.5mm to 20 mm.
(3)Temperature control range of thermal wax actuator is between –20 ~ 230℃.
(4)Lag phenomenon is generally 1 ~ 2℃. Friction of each component part and lag of the component part temperature cause a lag phenomenon. Because there is a difference between up and down curve of traveling distance.
(5)Loading force of thermal wax actuator is difference, it depends on its’ shell size.
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One of my 3rd year microcontroller lab projects was to realize a temperature control system using an 8 bit, 80c51 family chip.
The schematic contains the 80c51 uC, 0801 analog-digital converter, LM35 temperature sensor, 2 line LCD, a bulb and a fan as heater/cooler device. The system is also capable to send continuously the temperature value read from the sensor via RS323 port. The LCD display shows two values, Temp, which represents the temperature received from the sensor, and Set, which is the reference temperature value, and it can be modified using the + and – buttons. To emulate a virtual serial connection, i used the Virtual Serial Port Driver software from Eltima, and visualized the output data in Termite 2.5. The video shows how the simulation works. Anyone interested in my project files (schematic and source code), you can download from this link: https://ge.tt/7l6qIeB1/v/0
The power window broke on our 1999 Sienna minivan. Here is how I debugged and fixed it. Had to remove the door panel, figure out whether the problem was the switch or the motor, then remove and replace the entire regulator assembly.
I believe that Siennas from 1998 to 2003 all have the same door, but no guarantees.






