Bevel gear for gearbox
AssigneeHamilton Sundstrand Corporation
InventorMatthew Slayter
Life of this patent
Estimating the term…
Abstract
A gear set is provided for use in a gearbox. The gear set includes a first bevel gear having a first rotational axis and a second bevel gear having a second rotational axis. The second gear is driven by the first gear. The first gear has an outside diameter of about 3.1956 inches, an outer cone distance of about 2.1044 inches, a face width of about 0.62 inches, and a ratio of the outside diameter to a length parallel to the axis of rotation between the crown and the pitch apex of about 1.83. The second gear has an outside diameter of about 2.8337 inches, an outer cone distance of about 2.1044 inches, a face width of about 0.62 inches, and a ratio of the outside diameter to a length parallel to the axis of rotation between the crown and the pitch apex of about 2.33.
Claims20
A gear comprising:
- a generally conical base having an inner end section and an outer end section at two different positions along a rotational axis;
- a plurality of teeth extending from a surface of the conical base between the inner end section and the outer end section wherein each tooth has a root, a pitch and a face;
- wherein the gear has an outside diameter of about 2.8337 inches, an outer cone distance of about 2.1044 inches, a face width of about 0.62 inches, and a ratio of the outside diameter to a length parallel to the axis of rotation between the crown and the pitch apex of about 1.82.
A gear comprising:
- a generally conical base having an inner end section and an outer end section at two different positions along a rotational axis;
- a plurality of teeth extending from the surface of the base between the inner end section and the outer end section, wherein each tooth has a root, a pitch and a face;
- wherein the gear has an outside diameter of about 3.1956 inches, an outer cone distance of about 2.1044 inches, a face width of about 0.62 inches, and a ratio of the outside diameter to a length parallel to the axis of rotation between the crown and the pitch apex of about 2.33.
A gear set for use in a gearbox comprising:
- a first gear having a first rotational axis;
- a second gear having a second rotational axis, wherein the second gear is driven by the first gear;
- wherein the first gear has an outside diameter of about 3.1956 inches, an outer cone distance of about 2.1044 inches, a face width of about 0.62 inches and a ratio of the outside diameter to a length parallel to the axis of rotation between the crown and the pitch apex of about 1.83;
- and
- wherein the second gear has an outside diameter of about 2.8337 inches, an outer cone distance of about 2.1044 inches, a face width of about 0.62 inches, and a ratio of the outside diameter to a length parallel to the axis of rotation between the crown and the pitch apex of about 2.33
A method of installing a gear set within a gearbox of an aircraft comprising:
- mounting a first gear on an engine shaft;
- and
- mounting a second gear in meshing engagement with the first gear to a second shaft driven by the engine shaft, wherein the first gear has an outside diameter of about 3.1956 inches, the second gear has an outside diameter of about 2.8337 inches and the first gear and the second gear have an outer cone distance of about 2.1044 inches and a face width of about 0.62 inches.
Dependencies are inferred from the claim text.