Patent ID: 8967111
Filing Date: 2015-03-03
Classification: F01M,F02B,F16C,F16N

Abstract:
1. An oil collection and forced lubrication structure of a model engine crankshaft comprising a crankshaft body, said crankshaft body having one end provided with a projecting shaft, said crankshaft body having a face of one end where said projecting shaft is provided with a passageway, said crankshaft body further bored with a through port, said through port communicating with said passageway, said passageway having a circumferential wall bored with a lubrication hole, said lubrication hole extending toward said projecting shaft, said lubrication hole having an end passing through a circumferential wall of said projecting shaft; and characterized by, an oil-collecting groove provided at a circumferential wall of said passageway, said oil-collecting groove formed at a point of said lubrication hole, said oil-collecting groove is generally of a water drop shape and is gradually enlarged toward said lubrication hole; and said lubrication hole positioned in said oil-collecting groove, to facilitate oil gas to get into the lubrication hole.