Cylinder liner fitting structure for engine

Abstract

Abstract PURPOSE:To prevent the occurrence of fretting abrasion on the circumference of a cylinder liner due to microvibrations lying between both metals of a cylinder body and the cylinder liner, by interposing a solid lubricant film on a fitting surface between them. CONSTITUTION:A cylinder liner 2 is fitted in a cylinder body 1 at two upper and lower spots, while two solid lubricant films 10 and 10 are interposed in the fitting surface between them. In addition, each of O-rings 11 and 11 are also interposed in the fitting part at the lower side, and at an intermediate area putting the fitting part in between at two upper and lower spots, a cooling water jacket 9 is formed. As a solid lubricant, molybdenum bisulfide, graphite, tungsten bisulfide, fluorocarbon resin, etc., are used as main components, and this lubricant is uniformly dispersed wide in organic synthetic resins, making into a coating-form solution which is applied to the fitting surface of the cylinder liner 2, thus a solid, dried film is formed there.

Inventors

• 👤 Kanji Tsuchimoto
• 👤 土本　寛治

Bibliographic Details