Vertical and horizontal light automotive technology engine rotation cylinder core of the good roundness, you can reduce the control of fuel consumption and leakage of the piston ring tension. Because the cylinder core achieves high precision, the cylinder core inner diameter and the piston outer diameter size can be controlled in the single-digit level. The low-friction piston is coated with a layer of a key to the piston to reduce the sliding resistance of the piston. The effect of reducing friction by lowering the tension of the piston ring and plating the vulcanized key film on the piston is compared with that of an ordinary engine of the same class.
Pseudo-cylinder heads and cylinder heads are bolted using a plastic field angle method to stabilize the axial force of bolts. The roundness of the cylinder core after assembling the cylinder head in this manner is very good, and the high number of components resulting from deformation of the cylinder core during the installation of the cylinder head is eliminated. Low friction piston effect. The low friction of the valve transmission adopts an outslim direct hit type DOHC and reduces the cam lobe width to adjust the valve spring load to the optimum. The effect of friction reduction in valve train is compared with that of conventional engines in the same class. The crankcase communication hole makes a communication hole in the cylinder wall at the crankshaft journal, suppresses the pressure fluctuation in the crankcase, and reduces the pumping loss.
Quietness. Semi-trapezoidal frame type crankshaft bearing structure (modified sintered alloy crankshaft bearing cap) An iron-based sintered alloy is used for the manufacture of the crankshaft bearing cap in order to suppress the expansion of the bearing clearance at high temperatures and to reduce the vibration noise generated during the movement of the crankshaft. The sintered material improves the surface composition and enhances its processing and strength in the cutting process. It is a new type of material.
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