| 摘要 |
PURPOSE: An oil injecting nipple of an engine cylinder is provided to reduce abrasion of an engine through directly injecting abrasion oil to a cylinder block through a main gallery. CONSTITUTION: A main gallery(2) is formed for supplying lubricating oil to a cylinder block(1). A nipple(3) is combined for directly injecting the lubricating oil into the main gallery while preventing the oil from being flowed out. Herein, the nipple is formed by a housing(3a) having a screw unit, an oil injection passage(3b) passing through the housing, and a check valve flowing the oil in one direction. The check valve is formed by a spring seat(3ca) installed on the inner wall of the oil injection passage, a spring(3cb) supported by the spring seat; a ball(3cc) elastically supported, and a stopper(3cd) opened and closed by the ball while having a hole connected to the oil injection passage.
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