How To Determine The Direction Of The Engine Tool Installation And Assembly Sequence ??

- Aug 15, 2017 -

How to determine the direction of the Engine Tool installation and assembly sequence ??
  The direction of the Engine Tool includes two questions, which is the face up, the other is how the Engine Tool's opening position is determined, the Engine Tool is installed in a different direction, and the effect is different. The assembly must be given enough attention.
       Some of the domestic engine Engine Tool on the face of the installation direction of the logo, with the English letter "up" (up) or other letters, or increase the size of the number, be sure to make the letter or the letter side up. If there is no sign, it should be carried out from the cross-sectional shape of the ring and the specific engine. The general shape of the cross-section of the cross-section should be facing down, the inner side of the door should be facing the door.
Engine Tool opening position, if the four rings, the first and second ring of the opening direction should be with the piston pin centerline into 450, and staggered 180 degrees each other, the third and fourth ring and the first and second at right angles, also With the center line of the piston pin 45, and staggered 180 with each other. If the three rings, the first ring should be with the piston pin center into 45 the rest of the road separated from each other 120.
The assembly order of the Engine Tool should pay attention to the upper and lower parts of each ring and the opposite of the ring itself.
       Foreign engine Engine Tool in the face are engraved with the words "UP" and increase the size of the number of some of our engine Engine Tool also marked. When assembling, the side of the mark should be up (to be assembled according to the mark). If there is no mark, should be from the shape of the ring to grasp: If the Engine Tool section with "inner incision" for the first ring, the installation of "incision surface" up. Engine Tool section with "outer incision" for the second, third ring, the installation of "incision surface" should be down. The equipment will cause the engine to burn oil.
 The basic role of the Engine Tool The force of the Engine Tool is the pressure of the gas, the elasticity of the ring itself, the inertial force of the reciprocating motion of the ring, the friction between the ring and the cylinder and the ring groove. As a result of these forces, the ring will produce axial movement, radial movement, rotary motion and other basic movement.
In addition, Engine Tool due to its movement characteristics, accompanied by irregular movement, inevitably there are axial irregular movement caused by floating and axial vibration, radial irregular movement and vibration, distortion and so on. These irregular movements often prevent Engine Tool from working. Design Engine Tool, we should give full play to the favorable movement, control the negative side. Thermal conductivity The heat generated by combustion is passed to the cylinder wall through the Engine Tool, so it can act as a cooling piston. Through the Engine Tool to the cylinder wall shed heat, the general can reach the top of the piston to withstand heat 30 to 40% air tightness Engine Tool's first role is to keep the piston and the cylinder wall between the seal, to control the leakage to a minimum The
This effect is mainly borne by the gas ring, that is, the engine in any operating conditions, the compressed air and gas leakage should be controlled to a minimum, to improve thermal efficiency; to prevent leakage caused by the cylinder and the piston or between the cylinder and the ring To kill; to prevent the deterioration of lubricating oil caused by failure and so on. The second role of the oil-powered Engine Tool is to properly scrap the oil that is attached to the cylinder wall and maintain normal fuel consumption. When the supply of oil too much will be sucked to the combustion chamber, so that fuel consumption increases, and because of the combustion of carbon deposition, the impact on the engine performance is extremely bad. Support because the piston is slightly smaller than the cylinder bore, such as no Engine Tool, the piston instability in the cylinder, it is impossible to exercise freely. At the same time, the ring should also prevent the piston directly with the cylinder contact, play a supporting role.