Method to Check Piston Ring Leakage of Perkins Diesel Generator Set

The piston ring of Perkins diesel generator set must be installed on the cylinder wall to effectively seal the piston ring. Therefore, when selecting and matching piston rings, light leakage should be checked. The inspection method is usually to place the piston ring of Perkins diesel generator set horizontally in the cylinder, place a bulb under the piston ring of Perkins diesel generator set, place a cover plate on the top to cover the inner ring of the piston ring, and observe the light leakage gap between the piston ring of Perkins diesel generator set and the cylinder wall.

If the leakage gap of the piston ring of Perkins diesel generator set should not exceed 0.03mm, the length of the leakage arc should not exceed 30 degrees at any point on the circumference, the leakage on the same ring should not exceed 2 places, the total arc length should not exceed 60 degrees, and no light leakage is allowed within the range of about 30 degrees at the ring end opening.

In order to ensure the close cooperation between the piston ring and the cylinder of Perkins diesel generator set, the piston ring should have a certain elasticity. If the elasticity is too large, the cylinder wall pressure will be too large, increasing friction loss, and the cylinder wall of Perkins diesel generator set will be easy to wear in the early stage. The excessive elasticity makes the piston ring of Perkins diesel generator set fail to play a good sealing role in the cylinder, which makes the cylinder of Perkins diesel generator set easy to leak and blow by oil. The elasticity of the piston ring can be tested on the elastic testing machine. When checking, put the piston ring of the Perkins diesel generator set into the groove of the inspector, with the piston ring opening facing outward, and then move the heavy hammer on the lever to press the opening clearance of the piston ring to the specified size according to the required force.

If the load meets the technical requirements, the elasticity of the piston ring of Perkins diesel generator set is considered acceptable. If there is no inspector, use a new comparison method to check the old piston ring and the new piston ring of Perkins diesel generator set, and apply a certain pressure to the piston ring. If the old piston ring opening collides and the new piston ring opening has a considerable gap, it indicates that the old piston ring of Perkins diesel generator set is not elastic enough and should be replaced.

Jiangsu Starlight Power Generation Equipment Co., Ltd. was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. The company has a registered capital of 218.88 million yuan. The company covers an area of 86,000 square meters and a building area of 55,000 square meters. There are more than 660 employees, including 456 professional technicians and 106 senior technicians. It has 46 sales and service outlets nationwide. The main products are diesel engines, generator sets, and diesel generators, providing users with a one-stop service of design, supply, debugging and maintenance at any time. Starlight has always insisted on using first-class talents, building first-class enterprises, manufacturing first-class products, creating first-class services, and making every effort to build a first-class domestic enterprise. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to sales@dieselgeneratortech.com.