Piston rings are opening resilient, with gas rings and oil ring of the points. Function: gas ring is to ensure tightness between the cylinder and the piston, to prevent leakage, and most of the heat absorbed by the piston crown should pass the cylinder wall, away from the cooling water. 1. The gas ring gas ring opening notches, an elastic CHINA diesel price quotes, in the free state outer diameter greater than the diameter of the cylinder, after it is loaded with the piston along the cylinder, close to the outer surface of the cylinder wall, forming a first sealing surface between the gas can not be closed by circumferential cylinder, they entered the East China diesel engine manufacturers gap ring and ring groove, on the one hand the ring down to the end face of the ring groove to form a second sealing surface Weifang Diesel East, while in the ring gas back pressure and greatly strengthened the role of the first sealing surface of the seal. Three-phase stator windings connected in a star connection, there are two characteristics of the line current is equal to the phase current, and the three phases are connected together at one end. The instantaneous value of the neutral point voltage is a third harmonic voltage, the average value of the neutral point voltage is half the generator output voltage (average), the generator can be used with a neutral point terminal voltage to control the neutral point various uses relays. 1) The effective distance between the edges of two for each coil should be and the space occupied by a distance equal to the magnetic pole. (2) adjacent coils of each phase winding starting edge distance and distance between a pair of magnetic poles should occupy equal or multiples. (3) the beginning of the three-phase windings should be spaced side 2π + 120o electrical angle (a pair of pole space occupied by an electrical angle of 360o). Shandong East Diesel | Diesel East | Weifang Huadong East by Weifang Diesel Engine Co., East China. Weifang Huadong Engine Co., Ltd. (www.hdchai.com) strong, credible, Shandong Weifang engine industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve Weifang Huadong innovative ideas will lead into the brilliant and you work for a better future!