# US 2018/0023658 A1 · Systems for a crankshaft damper cover > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0023658 A1 - Document ID: US20180023658A1 - Status: Published application - Kind: A1 - Application number: 15/218,941 - Filed: 2016-07-25 - Published: 2018-01-25 - Earliest claimed: 2016-07-25 - Assignees: Ford Global Technologies, LLC - Applicants: Ford Global Technologies, LLC - Inventors: Shashin Shah; Shaji Mathews; Chuck Raymond Kvasnicka; Nathaniel David Hansen; Tom Xu - Web page: https://patentgrep.com/patent/US20180023658A1 ## CPC - F16F 15/12: using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon ({F16F15/14} , F16F15/16 take precedence) - F16H 55/36: Pulleys (with features essential for adjustment F16H55/52) - F16F 15/126: consisting of at least one annular element surrounding the axis of rotation - F16H 2055/366: {with means providing resilience or vibration damping} - F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION - F16H: GEARING ## Abstract Systems are provided for a damper cover for an engine crankshaft damper. In one example, a damper cover may include a frame and an inset, with extensions of the frame adapted to couple to slots of an engine crankshaft damper, and with portions of the inset positioned between each extension and each corresponding slot. As one example, the frame may be comprised of metal and the inset may be comprised of a damping material such as foam or rubber. ## Claims ### Claim 1 A system, comprising: a crankshaft damper cover, comprising: a frame including a first plurality of extensions arranged around a perimeter of the frame and extending from a base of the frame in a direction of a centerline of the cover; and an inset molded around the frame and including a second plurality of extensions aligned with the first plurality of extensions. ### Claim 2 (depends on 1) The system of claim 1, further comprising a crankshaft damper including a planar slot surface including a plurality of elongate slots arranged around a central axis of the crankshaft damper, where the central axis is aligned with the centerline of the cover. ### Claim 3 (depends on 2) The system of claim 2, wherein each extension of the first plurality of extensions and the second plurality of extension extends through and clamps to one slot of the plurality of elongate slots, where a portion of each extension of the second plurality of extensions is positioned between a corresponding extension of the first plurality of extensions and sidewalls of one slot. ### Claim 4 (depends on 3) The system of claim 3, wherein each extension of the first plurality of extensions includes a tab end adapted to lock around one slot of the plurality of elongate slots, the tab end including an indented surface and wherein the portion of each extension of the second plurality of extensions is positioned over the indented surface and in face-sharing contact with the sidewalls of the one slot when the crankshaft damper cover is coupled to the crankshaft damper. ### Claim 5 (depends on 4) The system of claim 4, wherein the planar slot surface of the crankshaft damper is positioned closer to an outermost planar surface of the crankshaft damper than an innermost planar surface of the crankshaft damper, along the central axis, where the planar slot surface, outermost planar surface, and innermost surface are arranged parallel to one another and perpendicular to the central axis. ### Claim 6 (depends on 5) The system of claim 5, wherein the inset includes a plurality of tabs arranged around a perimeter of the inset at an outer surface of a base of the inset and wherein the second plurality of extensions extend outward from the base of the inset, away from the outer surface of the base of the inset. ### Claim 7 (depends on 6) The system of claim 6, wherein a portion of each extension of the first plurality of extensions is positioned between two adjacent tabs of the plurality of tabs. ### Claim 8 (depends on 4) The system of claim 4, wherein the planar slot surface of the crankshaft damper is depressed into the crankshaft damper and positioned closer to an innermost planar surface of the crankshaft damper than an outermost planar surface of the crankshaft damper, along the central axis, where the planar slot surface, outermost planar surface, and innermost surface are arranged parallel to one another and perpendicular to the central axis. ### Claim 9 (depends on 8) The system of claim 8, wherein the inset includes an inset sidewall arranged around the centerline and coupled between an outermost planar surface of the inset and an innermost planar surface of the inset. ### Claim 10 (depends on 9) The system of claim 9, wherein the frame includes a frame sidewall positioned around the centerline and coupled between the base of the frame and an innermost planar surface of the frame, where the frame sidewall is coupled with the inset sidewall and a line normal to the innermost planar surface of the frame is parallel to the centerline. ### Claim 11 A system, comprising: a crankshaft damper cover, comprising: a frame including a plurality of first extensions arranged around a perimeter of the frame and extending from a base of the frame, where each first extension includes an open, tabbed end with an indented locking element positioned proximate to the base and a closed, guide end positioned away from the base; and an inset molded around the frame and comprised of a damping material. ### Claim 12 (depends on 11) The system of claim 11, further comprising a crankshaft damper including a planar, first surface including a plurality of elongate slots arranged around a central axis of the crankshaft damper, the first surface arranged proximate to and in parallel with an outermost planar surface of the crankshaft damper. ### Claim 13 (depends on 12) The system of claim 12, wherein each first extension extends from the base of the frame toward the first surface, in a direction of the central axis, and wherein the indented locking element is positioned proximate to the base relative to an axial direction. ### Claim 14 (depends on 12) The system of claim 12, wherein the base is positioned between a planar, outer face of the inset and the first surface, the outer face of the inset arranged parallel to the base and the first surface. ### Claim 15 (depends on 11) The system of claim 11, wherein each first extension narrows, in a circumferential direction, from the tabbed end to the guide end. ### Claim 16 A system, comprising: a crankshaft damper cover, comprising: a frame including a plurality of first extensions arranged around a perimeter of the frame and extending from a base of the frame, where each first extension includes an open, tabbed end with an indented locking element positioned away from the base and a closed, guide end positioned at the base; and an inset molded with the frame and comprised of a damping material, where the guide end of each first extension is formed around an annular base of the inset. ### Claim 17 (depends on 16) The system of claim 16, further comprising a crankshaft damper including a planar slot surface, the planar slot surface depressed into an interior of the crankshaft damper from an outermost planar surface of the crankshaft damper and including a plurality of slots positioned within the planar slot surface and arranged around a central axis of the crankshaft damper. ### Claim 18 (depends on 17) The system of claim 17, wherein the tabbed end of each first extension extends through each slot of the plurality of slots when the crankshaft damper cover is coupled with the crankshaft damper. ### Claim 19 (depends on 16) The system of claim 16, wherein the inset includes a plurality of second extensions extending from the annular base. ### Claim 20 (depends on 19) The system of claim 19, wherein a protrusion of each second extension of the plurality of second extensions surrounds the indented locking element of a corresponding first extension of the plurality of first extensions.