The purpose of using an engine borescope is to determine the degree of wear of the piston ring and cylinder, the seal of the cylinder and piston, valve and valve seat, cylinder liner, and so on. During use, due to wear and tear, cauterization, gel, carbon deposition and other reasons, the cylinder piston group of the technical conditions worse, so poor cylinder seal, engine power and economic decline. At present, the staff now choose to use the engine endoscope to detect the engine cylinder piston situation, real-time on-site testing, timely solution to the problem. Common detection cylinder need to disassemble the entire engine, time-consuming and laborious. Now use the engine borescope without disassembling the engine can be detected in situ on-site inside the cylinder. Use QBH engine borescope, the lens can be inserted directly into the cylinder, the cylinder can be sensed by the lens inside the screen to the situation, but also observed other parts of the engine situation. Make a real-time on-site repair program. The following brief introduction of the engine endoscope when testing the basic conditions, norms and requirements.
(1) The path to the test point. If the path of arrival to the test point is linear, it is more appropriate to use a rigid endoscope to perform the test. If the arrival path is curvilinear, a hose borescope or an electronic borescope must be used. Some Even with a direction or with a mirror borescope.
(2) Check the depth of the hole diameter size. Check the depth of the hole size will directly determine the size of the engine borescope tube diameter.
(3) Engine borescope working distance. Whether using a standard or high-intensity light source, the working distance will directly affect the lighting requirements.
(4) Check the depth of the hole. In the test, the engine borescope must be inserted into the test point close enough to carry out testing. Check the location of the hole will determine the endoscopic observation direction, approach to the line and the selection of working length.
The size of the contours of the test object. The contours of the test object, including the entire object under test, cracks or cracks, as well as the size of the deformation and other parts, which is one of the important factors to determine the viewing angle and light source brightness. Therefore, the engine borescope used must have a focusing function so that the image can be clearly communicated to the user.