Torsional vibration damper with discretized hub
AssigneeOptimized Solutions, LLC
InventorSuhale Manzoor
Life of this patent
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Abstract
The disclosed invention is a novel method for constructing a Torsional Vibration Damper (TVD). The traditional means used to construct the hub of the TVD was to employ a single material. The disclosed invention essentially discretizes the construction of the TVD hub into three regions: nose, spokes, and flange, and simultaneously aligns unique materials and manufacturing methods for each region with the structural loads borne thereby. Consequently, the invention helps in reduces four unwanted characteristics: (1) mass; (2) polar mass moment of inertia; and (3) casting scrap; and (4) cost. Furthermore, because of this construction other enhancements to the axial and angular structural integrity of the TVD can be reaped in certain cases.
Claims16
A hub of a Torsional Vibration Damper (TVD), comprising:
- a nose including
- a first planar annular surface oriented perpendicular to the central axis of the TVD (CL);
- opposed by a second planar annular surface;
- bounded by a first cylindrical surface radially proximate to the CL;
- and
- a second axis-symmetric surface radially distal to the CL, further including
- a plurality of blind threaded holes that are radially oriented pointing towards the CL;
- a flange including
- a first annular planar surface oriented perpendicular to the CL,
- opposed by a second annular planar surface;
- bounded by a first axis-symmetric surface radially proximate to the CL;
- and
- a second axis-symmetric surface radially distal to the CL further including
- a plurality of counter bored holes radially oriented pointing towards the CL;
- spokes including
- a plurality of bolts
- the heads of which are received by the Counterbored or Countersunk (CB/CS) holes in the flange;
- the threads of which are engaged by the threaded holes in the nose;
- and
- the heads of which are partially machined off to create the continuous second axis-symmetric surface of the flange for receiving the elastomer.
A hub of a TVD, comprising:
- a nose including
- a first planar annular surface oriented perpendicular to the central axis of the TVD (CL);
- opposed by a second planar annular surface;
- bounded by a first cylindrical surface radially proximate to the CL;
- and
- a second axis-symmetric surface radially distal to the CL, further including
- a plurality of blind holes that are radially oriented pointing towards the CL;
- a flange including
- a first annular planar surface oriented perpendicular to the CL,
- opposed by a second annular planar surface;
- bounded by a first axis-symmetric surface radially proximate to the CL;
- and
- a second axis-symmetric surface radially distal to the CL further including
- a plurality of counter bored holes radially oriented pointing towards the CL;
- spokes including
- a plurality of headed pins
- the heads of which are received by the CB/CS holes in the flange;
- the opposite ends of which are engaged via a press-fit by the holes in the nose;
- and
- the heads of which are partially machined off to create the continuous second axis-symmetric surface of the flange for receiving the elastomer.
A hub for a TVD, comprising:
- a nose including
- a first planar annular surface oriented perpendicular to the central axis of the TVD (CL);
- opposed by a second planar annular surface;
- bounded by a first cylindrical surface radially proximate to the CL;
- and
- a second axis-symmetric surface radially distal to the CL, further including
- a plurality of blind holes that are radially oriented pointing towards the CL;
- a flange including
- a first annular planar surface oriented perpendicular to the CL,
- opposed by a second annular planar surface;
- bounded by a first axis-symmetric surface radially proximate to the CL;
- and
- a second axis-symmetric surface radially distal to the CL further including
- a plurality of counter bored threaded holes radially oriented pointing towards the CL;
- spokes including
- a plurality of partially threaded bolts the location of the threads being proximate to the head of the bolt
- the heads of which are received by the CB/CS holes in the flange;
- the threads of which are engaged by the threaded holes in the flange;
- the opposite ends of which are engaged via a press-fit or slip-fit by the holes in the nose;
- and
- the heads of which are partially machined off to create the continuous second axis-symmetric surface of the flange for receiving the elastomer.
Dependencies are inferred from the claim text.