气弹簧

弹力的大小f跟弹簧伸长(或缩短)的长度x成正比，即f=kx 式中的k称为弹簧的劲度系数，不同的弹簧的劲度系数一般是不同的。这个规律是英国科学家胡克发现的，叫做胡克定律。气弹簧是一种可以起支撑、缓冲、制动、高度调节及角度调节等功能的配件。 目前，该产品在医疗设备、汽车、家具、纺织设备、加工行业等领域都得到了广泛地应用。 根据不同的特点及应用领域，气弹簧又被称为支撑杆、调角器、气压棒、阻尼器等. 气弹簧的基本原理是在密闭的腔体内压入惰性气体和油、或则油气混合物。
气弹簧是以气体和液体为工作介质的一种弹性元件，由压力管，活塞，活塞杆及若干联接件组成其内部充有高压氮气，由于在活塞内部设有通孔，活塞两端气体压力相等，而活塞两侧的截面积不同，一端接有活塞杆而另一端没有，在气体压力作用下，产生向截面积小的一侧的压力，即气弹簧的弹力，弹力的大小可以通过设置不同的氮气压力或者不同直径的活塞杆而设定。

中译英：
Stretch size f with the elongation of the spring(or shorten)length is proportional to x, f=kx type of K is known as the spring stiffness coefficient, different spring stiffness coefficient in general is different. This rule is a British scientists discovered by Hooke, called Hooke's law. Gas spring is a kind of can support, buffer, brake, height adjustment and angle adjusting function parts. At present, the products in medical equipment, automotive, furniture, textile equipment, processing industry and other fields have been widely used. According to the different characteristics and application fields of the gas spring, also known as the supporting rod, angle, pressure rods, damper. Gas spring is the basic principle in the sealed cavity pressure of inert gas and oil, or oil and gas mixture.
Gas spring with gas and liquid medium for the work of an elastic element, a pressure tube, piston, piston rod and a plurality of connecting pieces whose interior is filled with high pressure nitrogen, because inside the piston is provided with a through hole, both ends of the piston gas pressure is equal on both sides of the piston, and the cross-sectional area of not the same, one end is connected with the piston rod while the other end is not, in under the action of gas pressure, to produce small sectional area on the side of the pressure, the gas spring, the elasticity can be by setting different nitrogen pressure or different diameter piston rod set.
(图/文http://www.wxpdqp.com/)