# US 2019/0170029 A1 · Cam phaser > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170029 A1 - Document ID: US20190170029A1 - Status: Published application - Kind: A1 - Application number: 16/266,830 - Filed: 2019-02-04 - Published: 2019-06-06 - Earliest claimed: 2016-03-14 - Assignees: ECO Holdings 1 GmbH - Applicants: ECO Holding 1 GmbH - Inventors: Steve Nance; John Snyder - Web page: https://patentgrep.com/patent/US20190170029A1 ## CPC - F01L 1/3442: {using hydraulic chambers with variable volume to transmit the rotating force} - F01L 1/047: Camshafts - F01L 1/46: Component parts, details, or accessories, not provided for in preceding subgroups - F01L 2001/34433: {Location oil control valves} - F01L 2001/3445: {Details relating to the hydraulic means for changing the angular relationship} - F01L 2001/34469: {Lock movement parallel to camshaft axis} - F01L 2001/34483: {Phaser return springs} - F01L 2250/02: the camshaft being driven by chains - F01L 2303/00: Manufacturing of components used in valve arrangements - F01L 2820/031: Electromagnets - F01L: CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ## Abstract A cam phaser including a rotation phaser and a hydraulic valve hydraulically loading the rotation phaser, wherein the hydraulic valve is connectable torque proof with a cam shaft so that the cam shaft is rotatable, wherein the rotation phaser includes a stator and a rotor configured coaxial with the stator, wherein the rotor is rotatable relative to the stator, wherein the hydraulic valve is configured so that it protrudes at least partially into the rotation phaser, wherein an adapter is provided for a relative axial positioning of the rotor and the stator. According to the invention the adapter is configured for loose mounting in the rotation phaser so that a fixated connection of the adapter in the rotation phaser is provided when the cam shaft is mounted at the hydraulic valve. ## Claims ### Claim at position 1 1-9. (canceled) ### Claim 10 A cam phaser, comprising: a rotation phaser; and a hydraulic valve hydraulically loading the rotation phaser, wherein the hydraulic valve is connectable torque proof with a cam shaft so that the cam shaft is rotatable relative to the rotation phaser, wherein the rotation phaser includes a stator and a rotor configured coaxial with the stator, wherein the rotor is rotatable relative to the stator, wherein the hydraulic valve protrudes at least partially into the rotation phaser, wherein an adapter provides relative axial positioning of the rotor and the stator, wherein the adapter is loosely mountable in the rotation phaser so that a fixated connection of the adapter in the rotation phaser is provided when the cam shaft is mounted at the hydraulic valve, wherein the drive wheel is arranged in a radial direction on an annular shoulder of the adapter, and wherein a radial clearance is provided between the annular shoulder and the drive wheel. ### Claim 11 (depends on 10) The cam phaser according to claim 10, wherein a radial clearance is provided between the adapter and the rotor. ### Claim 12 (depends on 10) The cam phaser according to claim 10, wherein the hydraulic valve is configured as an externally threaded central valve. ### Claim 13 (depends on 10) The adapter according to claim 10, wherein the adapter is arranged between the cam shaft and the rotor. ### Claim 14 (depends on 10) The cam phaser according to claim 10, wherein a radial straight bearing is provided between the rotation phaser and the adapter, and wherein a radial clearance is provided between the radial straight bearing and the adapter. ### Claim 15 (depends on 10) The cam phaser according to claim 10, wherein the adapter includes an annular shoulder at an end oriented towards the rotor. ### Claim 16 (depends on 10) The cam phaser according to claim 10, wherein the adapter includes at least one recess completely penetrating the adapter in a radial direction over a circumference of the adapter. ### Claim 17 (depends on 16) The cam phaser according to claim 16, wherein the recess is configured as a groove. ### Claim 18 A cam phaser, comprising: a rotation phaser; and a hydraulic valve hydraulically loading the rotation phaser, wherein the hydraulic valve is connectable torque proof with a cam shaft so that the cam shaft is rotatable relative to the rotation phaser, wherein the rotation phaser includes a stator and a rotor configured coaxial with the stator, wherein the rotor is rotatable relative to the stator, wherein the hydraulic valve protrudes at least partially into the rotation phaser, wherein an adapter provides relative axial positioning of the rotor and the stator, wherein the adapter is loosely mountable in the rotation phaser so that a fixated connection of the adapter in the rotation phaser is provided when the cam shaft is mounted at the hydraulic valve, wherein the rotor is arranged in a radial direction on an annular shoulder of the adapter, and wherein a radial clearance is provided between the annular shoulder and the drive wheel. ### Claim 19 (depends on 18) The cam phaser according to claim 18, wherein a radial clearance is provided between the adapter and the rotor. ### Claim 20 (depends on 18) The cam phaser according to claim 18, wherein the hydraulic valve is configured as an externally threaded central valve. ### Claim 21 (depends on 18) The adapter according to claim 18, wherein the adapter is arranged between the cam shaft and the rotor. ### Claim 22 (depends on 18) The cam phaser according to claim 18, wherein a radial straight bearing is provided between the rotation phaser and the adapter, and wherein a radial clearance is provided between the radial straight bearing and the adapter. ### Claim 23 (depends on 18) The cam phaser according to claim 18, wherein the adapter includes an annular shoulder at an end oriented towards the rotor. ### Claim 24 (depends on 18) The cam phaser according to claim 18, wherein the adapter includes at least one recess completely penetrating the adapter in a radial direction over a circumference of the adapter. ### Claim 25 (depends on 24) The cam phaser according to claim 24, wherein the recess is configured as a groove.