Patent ID: 9033124
Filing Date: 2015-05-19
Classification: F04C,F16F

Abstract:
1. A damper device for a rotating machine, which includes a rotatable arrangement that is rotatable about a central axis, the damper device comprising: a base portion that is configured to be fixed to a casing of the rotating machine; a first weight portion that is movable relative to the base portion; a second weight portion that is movable relative to the base portion; at least one primary connecting member that is at least partially placed within an axial extent of the base portion and an axial extent of the first weight portion in a direction of the central axis to radially connect between the base portion and the first weight portion at an axial location that is within the axial extent of the base portion and the axial extent of the first weight portion, wherein the at least one primary connecting member enables oscillation of the first weight portion in a first direction that is perpendicular to the central axis; and at least one secondary connecting member that is at least partially placed within the axial extent of the first weight portion and an axial extent of the second weight portion in the direction of the central axis to radially connect between the first weight portion and the second weight portion at an axial location that is within the axial extent of the first weight portion and the axial extent of the second weight portion, wherein the at least one secondary connecting member enables oscillation of the second weight portion in a second direction that is perpendicular to the central axis and is different from the first direction, wherein the at least one primary connecting member is formed discontinuously from the at least one secondary connecting member, the at least one primary connecting member is indirectly connected to the at least one secondary connecting member through one of the first weight portion and the base portion, the at least one primary connecting member is formed separately from the first weight portion and is secured to the first weight portion, the base portion, the first weight portion and the second weight portion are formed separately from each other, the at least one primary connecting member and the at least one secondary connecting member are made of one of rubber and synthetic resin, which are resiliently deformable, a spring constant of the at least one secondary connecting member, which is measured in the first direction, is larger than a spring constant of the at least one primary connecting member, which is measured in the first direction, and a spring constant of the at least one primary connecting member, which is measured in the second direction, is larger than a spring constant of the at least one secondary connecting member, which is measured in the second direction.