Actuator and valve linkage
View Patent ↗A system can include a linkage that includes a turnbuckle component fixed between extensions of a rod end, a turbine assembly that includes a rotatable wastegate poppet arm connected to a pivotable wastegate valve control arm coupled to the rod end of the linkage by a peg, and an actuator that includes a translatable rod connected to the turnbuckle component of the linkage to pivot the wastegate valve control arm and rotate the wastegate poppet arm. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
1. A system comprising:
a linkage that comprises a turnbuckle component fixed between two planar and parallel extensions of a rod end component;
a turbine assembly that comprises a rotatable wastegate poppet arm connected to a pivotable wastegate valve control arm coupled to the rod end component of the linkage by a peg; and
an actuator that comprises a translatable rod connected to the turnbuckle component of the linkage to pivot the wastegate valve control arm and rotate the wastegate poppet arm.
2. The system of claim 1 wherein the linkage comprises a weld between the turnbuckle component and at least one of the extensions of the rod end component.
3. The system of claim 1 wherein the pivotable wastegate valve control arm comprises the peg, wherein the rod end comprises a cylindrical wall that defines an opening, and wherein the peg is received by the opening.
4. The system of claim 1 wherein the wastegate poppet arm comprises a rotational axis, wherein the wastegate valve control arm comprises a pivot axis parallel to the rotational axis of the wastegate poppet arm and wherein the translatable rod comprises a translational axis.
5. The system of claim 1 wherein the turnbuckle component comprises a threaded bore and wherein the translatable rod comprises a threaded portion having threads complimentary to threads of the threaded bore.
6. The system of claim 5 wherein rotation of the threads of the translatable rod with respect to the threads of the turnbuckle component translates the translatable rod with respect to the turnbuckle component.
7. The system of claim 1 wherein the turnbuckle component comprises two planar and parallel sides where each of the sides contacts a respective one of the two planar and parallel extensions of the rod end component.
8. The system of claim 1 wherein the turnbuckle component comprises a hexahedron.
9. The system of claim 8 wherein two sides of the hexahedron contact the extensions of the rod end component.
10. The system of claim 1 wherein the extensions of the rod end form a socket in which the turnbuckle component is fixed.
11. The system of claim 1 further comprising a compressor housing that comprises an actuator mount and wherein the actuator is mounted to the actuator mount.
12. The system of claim 1 further comprising a poppet connected to the wastegate poppet arm.
13. The system of claim 12 wherein the turbine assembly comprises a turbine housing that comprises a wastegate port coverable by the poppet.
14. The system of claim 13 wherein the poppet comprises a flat surface configured to seat against a flat surface surrounding the wastegate port.
15. The system of claim 1 comprising a locking ring that locks the rod end component to the peg.
16. The system of claim 1 wherein the rod end component comprises an outward facing connecting wall that defines in part a three-walled chamber that receives a portion of the translatable rod that extends through the turnbuckle component.
17. A linkage for a turbocharger comprising:
a hexahedronal turnbuckle component that comprises a threaded bore to receive a threaded rod of a linear actuator; and
a rod end that comprises two planar and parallel extensions that form a socket for receipt of the hexahedronal turnbuckle component and that comprises a coupling feature to couple the rod end to a pivotable control arm.
18. The linkage of claim 17 wherein the hexahedronal turnbuckle component comprises a hexahedronal turnbuckle component wherein its internal angles are 90 degrees.