The piston ring guide ring of the automobile engine is one of the key parts of the automobile engine, it forms a piston group with the piston ring, guide ring, piston pin and other parts, and forms a combustion chamber with the cylinder head, which bears the natural gas interaction force and sends the driving force to the engine crankshaft according to the piston pin and crankshaft to carry out the whole process of the work of the internal combustion automobile engine.
Piston ring is used to insert the piston groove inside the seal ring, piston ring is divided into two kinds: reducing ring and automotive oil ring. The reducing ring can be used to seal the flammable mixture in the combustion chamber; The auto oil ring is used to remove unnecessary auto oil from the cylinder.
Generally, the piston is a cylindrical body, according to different standards and regulations in the work of the automobile engine, the structure of the piston itself is various, and the piston is generally divided into three parts: the top, the head and the journal.
The piston tip is a key part of the combustion chamber, and its appearance depends on the combustion chamber method used. The slope roof piston is often used in gasoline engine, which has the advantage of small endothermic reaction area. Diesel engine piston tips often have a variety of dents, and their actual appearance, location and size must be consistent with the diesel engine's gas mixture generation and ignition regulations.
The piston head refers to the top of the piston and part of the ring groove, and the middle part of the piston ring groove from the top to the bottom is called the piston head, whose effect is to bear air pressure and avoid steam leakage. The heat is sent to the cylinder wall according to the piston ring. A plurality of ring grooves are cut into the piston head for mounting the piston ring. The piston of gasoline engine is mostly selected with slope roof or concave roof, which is convenient to make the combustion chamber compact.
The piston journal refers to the whole part of the piston ring groove called the piston skirt, and its effect is to maintain the vertical position of the piston in repeated motion as much as possible, that is, the guiding part of the piston.
Gas turbine piston ring guide ring is divided into:
1. According to the application of natural materials, can be divided into gasoline engine piston, diesel engine piston, natural gas piston.
2. According to the working situation of the piston, it can be divided into two categories: non-increasing piston and increasing piston.
3. According to the main uses of the piston, it can be divided into car piston, truck piston, motorcycle piston, ship piston, heavy tank piston, large tractor piston, etc.
Piston ring guide ring is widely used in a variety of power machinery, such as steam engine, diesel engine, gasoline engine, compressor, hydraulic press and so on.