The cylinder liner should be approximately 20 meters higher than the cylinder body.
Cylinder liners are divided into two categories: dry cylinder liners and wet cylinder liners. The cylinder liner whose rear side is not in contact with the cooling water is called a dry cylinder liner, and the cylinder liner whose rear side is in contact with the cooling water is called a cylinder liner humid. The dry cylinder liner is thinner, has a simple structure and is easy to process. The wet cylinder liner is in direct contact with the cooling water, so it promotes engine cooling and helps make the engine smaller and lighter.
The symptoms of diesel generator cylinder knocking during operation are: From medium speed to low speed, there will be a loud knocking sound on the cylinder, smokeBlack air will be emitted from the exhaust pipe of the diesel generator, and there will be gunshots or gunshot sounds from time to time. The fire was projected outwards and the engine block overheated.
When the piston of the diesel generator set moves upward and has not reached the specified fuel injection position, the fuel injector starts to inject fuel, causing the fuel to advance. the combustion of fuel in the cylinder. impacts the piston and emits a rhythmic “click”. There is a clear and distinct knocking sound on the cylinder. Reduce the throttle and the cylinder knocking noise will be evident.
The elimination method is: adjust the advance angle of the fuel supply, that is, add a seal between the fuel injection pump and the gearbox to delay the fuel supply time to the specified fuel injection time. Every time thejoint is increased by 0.1mm, the oil supply advance angle can be delayed by 1.3 or 1.7.