subject: The Control Cable And Spark Plug [print this page] There is a built-in control cable for slidably guiding the internal control cables and pipelines, a tubular liner and the intervention of the channel. The pipeline has an external spring synthetic resin coating. The outer coil spring is wound around between the outer surface and within the remaining outer surface of the spring, steel liner liner clearance. The intervention is based in customs, in order to maintain the proper clearance, and provides a liner and the outer spring suitable relative movement of resistance, so that thermal expansion and contraction lined not be affected, and regular flights can not escape from the outside of the spring.
Control cable from a channel and the inner core or internal control cables, a remote-controlled object is controlled by the pull-pull or rotate within the control cable, means.
The pipeline generally by the so-called Spring and foreign armor or external coating. The outer layer is formed by a spring steel wire of a unit in the adjoining areas and tortuous roundabout, and then form a coil spring. The other channel types include the plural and the steel is laying side by side to form a spiral wound tubular member. The outer plastic coating to protect the pipeline coating and the outer surface.Inserted into the pipeline within the control cable, including a stranded wire or distort the plural stocks be mutually twisted wire.
In such a control cable, such that the outer surface of the inner spring cleaning control cable. Therefore, operational efficiency and durability is great friction between the spring and external and internal control cable wear coefficient. Therefore, in some cases, a tubular liner 3 is set within the external surface of the spring 4, in order to reduce friction and wear. Tubular plastic liner is usually made of low friction coefficient, excellent wear resistance. Tubular liner to close out the spring to set the lining around the outer surface of winding, so that the external packaging lined spring, or spring after catheter insertion, the formation of flat steel outer liner of a curly shape.
By the way, recently in the engine compartment temperature, room or automobile engines, etc. has become higher than the temperature so far. For example, it becomes high temperature 150 , and in cold areas, it may be environmental conditions, the temperature of -40 is so serious, trouble came.
Based on the above mentioned control cables, are closely linked Tiao Jian Wai spring, if the control cable is heating, liner axial thermal expansion are You external spring has higher hardness and lower coefficient of thermal expansion restrictions than liner. Therefore, regular flights are not free to expand and release heat stress in the unit. On the contrary, the liner is almost free to shrink, it is cooled. As the repeated rise and fall of temperature cycling results, has length and irreversibility of the liner in the narrow.
In addition, when a liner is compressed by the external spring in the spring, the outer surface is not smooth, especially in the section adjacent to moment, through the liner out of the operator's feeling worse, durability, decreased, and so on.
Therefore, in order to reduce the above drawbacks, a more than 0.5 mm between the control cable and the outer spring is a spring of a liner inserted into the clearance of foreign states. However, in this case, it is necessary to provide additional mechanism to slide out liner is not easy, for example, by making the liner at the end of January some flares, or the end of the pipeline between the washing machine and a member (such as cover members), in which the tube back-end is fixed.
On the other hand, after the plug on the pipe type, even a liner and the outer spring of procedures is not easy to insert the liner into the outer case of the spring, a control cable length.
Now all of the car to provide power by internal combustion engines, automotive engine is the most important external ignition of the spark plug, since the key components hidden in the engine's combustion chamber, can only be seen from the outside insulators and connectors, so easy to be a lot of car owners are ignored. In fact, this does not affect the visible component is the engine start-up capacity, performance, consumption and emission levels. If the engine is the heart of the car, then the spark plug is the "heart" of the "pacemaker" of the.
What spark plug function? All petrol engines have spark plugs, a cylinder with an individual's high-speed gas engine oil is also equipped with two spark plugs per cylinder. Although only a small part spark plug, but it is extremely important, without it the engine will not move. Those who often drive people will be very familiar with this stuff. There are basically two major functions of spark plug: first spark in the combustion chamber, igniting mixed gas generated power. Second, seal spark plug hole in order to maintain the pressure within the cylinder. Usually from the ignition coil through the power panel through the high voltage spark plug wires and the supply of about 20,000 to 30,000 volts, plus spark plug electrodes must always be at a high temperature of the combustion chamber with more than 45 times the atmospheric pressure environment, but also To maintain high air tightness. Therefore, in such and such harsh environments, spark plugs good or bad quality and durability will directly affect the performance of the engine, so we can not ignore.
