ENGINE BEARING DEVICE FOR AUTOMOBILE

摘要

PROBLEM TO BE SOLVED: To prevent the generation of noise in an engine supporting device caused by the vibration of small amplitude by using a decoupling diaphragm and a special cage structure. SOLUTION: Two chambers 3 and 4 filled with damping liquid are disposed below a spring main body 2 constructed integrally with a fixing pin 1. Each chamber is composed of two mutually connected plates 6 and 7, and partitioned by a valve plate 5 with its edge fastened. A cage is formed in the valve plate 5, and the cage receives a decoupling diaphragm 12 made of an elastically deformed material inside of the cage. The decoupling diaphragm 12 constructed as a plate uniform in cross section is disposed in the cage without any axial play perpendicular to a common chamber wall, and the hole 13 of the cage has a cross section tapered from the decoupling diaphragm 12 to the outside by an inclined limiting surface.