Patent ID: 6736597
Filing Date: 2004-05-18
Classification: F16J

Abstract:
A cylindrical seal mechanism which prevents a flow of fluid along a cylinder through a cylindrical space between a stationary portion and the cylinder, comprising:casings which are supported inside the stationary portion, a plurality of planar plates, which are mutually spaced in the circumferential direction of the cylinder, each of which is fixed to the casings positioned so that an inner end of each planar plate makes an acute angle with a peripheral surface of the cylinder and contacts the peripheral surface of the cylinder over a predetermined length in an axial direction, a high pressure side plate which is arranged at a high pressure side of the planar plates and a low pressure side plate which is arranged at a low pressure side of the planar plates so as to hold the planar plates therebetween, a flexible plate which is arranged between the planar plates and the high pressure side plate and is flexible in an axial direction, wherein the flexible plate is fixed to each of said planar plates.