# US 2014/0150745 A1 · Single lobe deactivating rocker arm > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0150745 A1 - Document ID: US20140150745A1 - Status: Published application - Kind: A1 - Application number: 14/154,319 - Filed: 2014-01-14 - Published: 2014-06-05 - Earliest claimed: 2010-08-13 - Assignees: Eaton Corporation - Applicants: Eaton Corporation - Inventors: Kynan L. Church - Web page: https://patentgrep.com/patent/US20140150745A1 ## CPC - F01L 1/185: {Overhead end-pivot rocking arms} - F01L 1/18: Rocking arms or levers - F01L 13/0005: {Deactivating valves} - F01L 13/0015: {for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque} - F01L 13/0036: {the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction} - F01L 2001/186: {Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison} - F01L 2001/467: {Lost motion springs} - F01L 2305/00: Valve arrangements comprising rollers - Y10T 74/20882: Rocker arms - Y10T 74/2107: Follower - F01L: CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A deactivating rocker arm can include an outer arm extending between a first end and a second end. The outer arm can have a first outer side arm and a second outer side arm. The first and second outer side arms can define outer pivot axle apertures and axle slots. The inner arm can be disposed between the first and second outer side arms. The inner arm can have a first inner side arm and a second inner side arm. The first and second inner side arms can define bearing apertures. A bearing can be mounted in the bearing apertures of the inner arm and the axle slots of the outer arm. The axle slots can be configured to permit lost motion movement of the bearing. A first biasing member can be disposed on the second end of the outer arm and in biasing contact with the bearing. ## Claims ### Claim 1 A deactivating rocker arm for engaging a cam having a lift lobe and at least one safety lobe, the deactivating rocker arm comprising: an outer arm having a first outer side arm and a second outer side arm, the first and second outer side arms defining (i) outer pivot axle apertures, (ii) axle slots, and (iii) safety lobe contacting surfaces configured to be in contact with a first and a second safety lobe on the cam during abnormal rocker arm operation; an inner arm disposed between the first and second outer side arms, the inner arm having a first inner side arm and a second inner side arm, the first and second inner side arms defining inner pivot axle apertures and inner lift lobe contacting member apertures; a pivot axle disposed in the inner pivot axle apertures and the outer pivot axle apertures; a latch configured to selectively deactivate the rocker arm; and a first biasing member disposed on the outer arm and in biasing contact with the lift lobe contacting member. ### Claim 2 (depends on 1) The deactivating rocker arm of claim 1, further comprising a lift lobe contacting member mounted in the lift lobe contacting member apertures of the inner arm and the axle slots of the outer arm, the axle slots configured to permit lost motion movement of the lift lobe contacting member. ### Claim 3 (depends on 2) The deactivating rocker arm of claim 2 wherein the lift lobe contacting member comprises a bearing mounted on a bearing axle. ### Claim 4 (depends on 1) The deactivating rocker arm of claim 1 wherein the deactivating rocker arm extends between a first end and a second end, wherein the pivot axle is mounted adjacent to the first end and the latch is mounted adjacent to the second end. ### Claim 5 (depends on 4) The deactivating rocker arm of claim 4 wherein the first biasing member is disposed at the second end. ### Claim 6 (depends on 5) The deactivating rocker arm of claim 5 wherein the outer arm includes a mount that secures the first biasing member. ### Claim 7 (depends on 5) The deactivating rocker arm of claim 5, further comprising a second biasing member disposed at the second end, wherein the first biasing member is secured to the first outer side arm and the second biasing member is secured to the second outer side arm. ### Claim 8 A deactivating rocker arm for engaging a cam having a lift lobe and at least one safety lobe, the deactivating rocker arm comprising: an outer arm having a first and second outer side arm, the first and second outer side arms having at least one safety lobe contacting surface and outer pivot axle apertures configured for mounting the pivot axle; an inner arm disposed between the first and second outer side arms and having a first and second inner side arm, the first and second inner side arms having inner bearing axle apertures; a bearing axle mounted in the bearing axle apertures of the inner arm; and at least one bearing axle spring secured to the outer arm and in biasing contact with the bearing axle. ### Claim 9 (depends on 8) The deactivating rocker arm of claim 8, further comprising inner pivot axle apertures on the first and second inner side arms. ### Claim 10 (depends on 9) The deactivating rocker arm of claim 9, further comprising a pivot axle disposed in the inner pivot axle apertures and the outer pivot axle apertures. ### Claim 11 (depends on 8) The deactivating rocker arm of claim 8, further comprising a lift lobe contacting bearing mounted to the bearing axle between the first and second inner side arm. ### Claim 12 (depends on 10) The deactivating rocker arm of claim 10, further comprising a latch for selectively securing the inner arm relative to the outer arm thereby selectively permitting lost motion movement of the inner arm relative to the outer arm about the pivot axle. ### Claim 13 (depends on 12) The deactivating rocker arm of claim 12 wherein the deactivating rocker arm extends between a first end and a second end, wherein the pivot axle is mounted adjacent to the first end and the latch is mounted adjacent to the second end. ### Claim 14 (depends on 8) The deactivating rocker arm of claim 8 wherein the at least one bearing axle spring comprises: a first and a second bearing axle spring, the first bearing axle spring secured to the first outer side arm and the second bearing axle spring secured to the second outer side arm, the first and second bearing axle spring in biasing contact with the bearing axle. ### Claim 15 A deactivating rocker arm for engaging a cam having a lift lobe, the deactivating rocker arm comprising: an outer arm extending between a first end and a second end, the outer arm having a first outer side arm and a second outer side arm, the first and second outer side arms defining outer pivot axle apertures and axle slots; an inner arm disposed between the first and second outer side arms, the inner arm having a first inner side arm and a second inner side arm, the first and second inner side arms defining bearing apertures; a pivot axle disposed on the first end of the outer arm in the outer pivot axle apertures; a bearing mounted in the bearing apertures of the inner arm and the axle slots of the outer arm, the axle slots configured to permit lost motion movement of the bearing; and a first biasing member disposed on the second end of the outer arm and in biasing contact with the bearing. ### Claim 16 (depends on 15) The deactivating rocker arm of claim 15, further comprising a latch configured to selectively deactivate the rocker arm. ### Claim 17 (depends on 15) The deactivating rocker arm of claim 15 wherein the bearing is mounted on a bearing axle. ### Claim 18 (depends on 15) The deactivating rocker arm of claim 15 wherein the outer arm includes a mount that secures the first biasing member. ### Claim 19 (depends on 15) The deactivating rocker arm of claim 15, further comprising a second biasing member disposed at the second end, wherein the first biasing member is secured to the first outer side arm and the second biasing member is secured to the second outer side arm. ### Claim 20 (depends on 15) The deactivating rocker arm of claim 15 wherein the first and second outer side arms include safety lobe contacting surfaces configured to be in contact with a first and a second safety lobe on the cam during abnormal rocker arm operation.