Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1977-06-29
1978-09-19
Mehr, Milton S.
Metal working
Method of mechanical manufacture
Assembling or joining
29458, 29705, 292811, 74574, 188 1B, 156 64, 156145, F16F 1516
Patent
active
041142462
ABSTRACT:
A method of making a tuned viscous torsional vibration damper assembly of the type having supporting disk means with a radially outwardly extending circular body and a radially inner hub portion adapted to be secured to a rotary member such as a crankshaft subject to vibrations to be damped by the damper, the body being received concentrically within a radially inwardly opening annular working chamber of an annular inertia mass, a viscous damping medium in said chamber between shear film spaced working surfaces of said body and said inertia mass, and said inertia mass having concentric annular grooves at opposite sides of and facing axially toward said body contiguous to the opening from said chamber, with elastic tuning spring, spacing and sealing rings coupling opposing surface areas of said inertia mass in said grooves and opposing surface areas on said body, comprising assembling the rings in the grooves, placing concentricity maintaining shoulder means across radially inner open sides of the grooves whereby to assure concentricity of the rings within the grooves, effecting bonding of the rings to the opposing surface areas of the inertia mass and of the body, and after the bonding removing the concentricity maintaining shoulder means. Apparatus for practicing the method is also disclosed.
REFERENCES:
patent: 2636399 (1953-04-01), O'Connor
patent: 3410369 (1968-11-01), Ishizuka
patent: 3678782 (1972-07-01), Aoki
patent: 3823619 (1974-07-01), Shotwell
patent: 4046230 (1977-09-01), Troyer
Houdaille Industries, Inc.
Mehr Milton S.
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