Compression ratio selection and fuel anti-knock performance is closely related to the anti-knock performance is to measure octane fuel, the higher the octane number, the better the anti-knock performance gas engine manufacturer in Weifang, several commonly used fuel octane were sorted according to the level of: diesel, CNG (methane), propane, butane (LPG is a mixture of propane and butane) and gasoline. According to this fuel characteristics, general LPG CNG engine compression ratio than high, but lower than the diesel engine and LPG engine compression ratio and can be slightly higher than gasoline gas engine manufacturers, of course, the gas engine manufacturers, as LPG is a mixture of propane and butane, Different mixing ratio also affect the compression ratio selection. With respect to LNG engines, CNG engine technology maturity and LPG engines, so a more realistic economic cost, CNG engines have been widely used at present its third-generation electronically controlled CNG injection technology, using high-pressure injection, by a throttle sensor, gas flow sensor, speed sensor, water temperature sensor, intake air temperature sensor, a pressure sensor and an oxygen sensor or the like through the central processing unit to control the ignition, air-fuel ratio and so on. LNG is more advanced direct injection technology has been a small group of trial, power, economy and emissions gas engine is superb, but the development is difficult, expensive, the cost is high, not yet started to develop. Gas Engine Brand | gas engines | Weifang Huadong gas engine provided by Weifang Huadong Engine Co., Ltd. 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!