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汽车发动机平常是怎么保养的

来源:http://www.sdjnltqf.com发布时间:2019-04-02 16:13:19

  1.正确起动和起步发动机冷车起动时,由于温度低,机油粘度大,流动性差,使机油泵供油不足。同时,原气缸壁上的机油在停车后沿气缸壁下流,因此在起动的瞬间得不到正常工作时那样良好的润滑,致使起动时气缸璧磨损大大增加。因此,初次起动时,应先使发动机空转几圈,待摩擦表面得到润滑后再起动。起动后应怠速运转升温,严禁猛轰油口,待机油温度达到40℃时再起步;起步应坚持挂低速档,并循序每一档位行驶一段里程,直到油温正常...
  1. When starting and starting engine cold car correctly, the oil pump is insufficient because of low temperature, high oil viscosity and poor fluidity. At the same time, the oil on the original cylinder wall flows down along the cylinder wall after stopping, so it can not be lubricated as well as normal work at the moment of starting, resulting in a great increase in cylinder abrasion during starting. Therefore, when starting for the first time, the engine should be idled several times before starting after the friction surface is lubricated.  After starting, idle operation should be heated up, no violent bombardment of oil outlet should be prohibited, and start when the oil temperature reaches 40 C. Starting should adhere to hanging low-speed gear, and drive a mile in sequence in each gear until the oil temperature is normal.
  1.正确起动和起步
  1. Start and Start Correctly
  发动机冷车起动时,由于温度低,机油粘度大,流动性差,使机油泵供油不足。同时,原气缸壁上的机油在停车后沿气缸壁下流,因此在起动的瞬间得不到正常工作时那样良好的润滑,致使起动时气缸璧磨损大大增加。因此,初次起动时,应先使发动机空转几圈,待摩擦表面得到润滑后再起动。起动后应怠速运转升温,严禁猛轰油口,待机油温度达到40℃时再起步;起步应坚持挂低速档,并循序每一档位行驶一段里程,直到油温正常,方可转为正常行驶。
  When the engine cold car starts, the oil pump is insufficient because of the low temperature, high oil viscosity and poor fluidity. At the same time, the oil on the original cylinder wall flows down along the cylinder wall after stopping, so it can not be lubricated as well as normal work at the moment of starting, resulting in a great increase in cylinder abrasion during starting. Therefore, when starting for the first time, the engine should be idled several times before starting after the friction surface is lubricated. After starting, idle operation should be warmed up, no heavy bombardment of oil outlet should be prohibited, and start when oil temperature reaches 40 C. Starting should adhere to hanging low gear, and drive a mile in sequence in each gear, until the oil temperature is normal, it can be turned into normal driving.
  2.正确选用润滑油
  2. Proper selection of lubricants
  要严格按季节和发动机性能要求选用最佳粘度值的润滑油,不可随意购用劣质润滑油,并经常检查和保持润滑油的数量与质量。
  The lubricants with the best viscosity value should be selected strictly according to the season and engine performance requirements, and inferior lubricants should not be purchased at will, and the quantity and quality of lubricants should be checked and maintained regularly.
  3.加强滤清器的保养
  3. Strengthen the maintenance of filters
  使空气滤清器、机油滤清器和燃油滤清器保持良好的工作状态,对减轻气缸套的磨损至关重要。加强对“三滤”的保养,是防止机械杂质进入气缸,减轻气缸磨损,延长发动机使用寿命的一项重要措施,在农村和多风沙地区尤为重要。有的驾驶员为了节约燃料而不装空气滤清器是绝对错误的。
  It is very important to keep the air filter, oil filter and fuel filter in good working condition to reduce the wear of cylinder liner. Strengthening the maintenance of "three filters" is an important measure to prevent mechanical impurities from entering the cylinder, reduce cylinder wear and prolong the service life of the engine, especially in rural areas and sandy areas. Some drivers are absolutely wrong not to install air filters in order to save fuel.
  4.保持发动机正常工作温度
  4. Keep the engine working at normal temperature发动机的正常工作温度应处在80-90℃。温度过低,不能保持良好的润滑,会增大气缸壁的磨损,气缸内的水蒸气易凝结成水珠,溶解废气中的酸性气体分子,生成酸性物质,使气缸璧受到腐蚀磨损。试验表明,当气缸璧温度由90℃降到50℃时,气缸磨损量为90℃时的4倍。温度过高,会使气缸强度降低而加剧磨损,甚至可能使活塞过度膨胀而造成“胀缸”事故。
  The normal working temperature of the engine should be between 80 and 90 C. If the temperature is too low to maintain good lubrication, the wear of the cylinder wall will be increased, the water vapor in the cylinder will easily condense into water droplets, dissolve the acid gas molecules in the exhaust gas, and form acid substances, which will cause the cylinder to be corroded and worn. The test results show that when the temperature of cylinder decreases from 90 C to 50 C, the wear of cylinder is four times as much as that of 90 C. If the temperature is too high, the strength of the cylinder will be reduced and the wear will be aggravated, and even the piston may be over-expanded, which may cause the "cylinder expansion" accident.

                                     济南奔驰汽车保养
  5.提高保修质量
  5. Improve the quality of warranty
  在使用过程中,及时发现问题及时予以排除,随时更换或维修损坏和变形的配件。安装气缸套时要严格按技术要求检验和装配。在保修换环作业中,要选用弹力适当的活塞环,弹力过小,使燃气窜入曲轴箱吹落气缸壁上的机油,增大气缸壁磨损;弹力过大,直接加剧气缸壁的磨损,或因气缸壁上的油膜遭到破坏而加剧其磨损。
  In the process of using, problems should be found and eliminated in time, and damaged and deformed parts should be replaced or repaired at any time. Installation of cylinder liners should be strictly inspected and assembled in accordance with technical requirements. In the maintenance and ring replacement operation, the piston ring with proper elasticity should be selected, and the elasticity is too small, so that the gas enters the crankcase and blows down the oil on the cylinder wall to increase the wear of the cylinder wall; the elasticity is too large, which directly aggravates the wear of the cylinder wall, or aggravates the wear of the cylinder wall because the oil film on the cylinder wall is damaged.
 

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