Patent ID: 6073517
Filing Date: 2000-06-13
Classification: F04C,Y10T

Abstract:
A connection piece for connecting a housing of a drive unit with a housing of a compressor element, the connection piece comprising:a wall which is provided with ribs over at least a part thereof, each of the ribs having a height which is at least equal to one and a half times a thickness of the part of the wall upon which the rib is standing and each of the ribs having a thickness which, half-way up the height is equal to at least half of the thickness of the part of the wall upon which the rib is standing, whereby the ribs form a pattern which divides the wall into adjacent wall segments, the wall segments having a first characteristic mode for bending which has a resonant frequency which excludes excitation by substantially all excitation frequencies up to and including a highest of the compressor element.