Transmission vent
AssigneeDeere & Company
InventorsClayton P. Neumann, David W. King
Life of this patent
Estimating the term…
Abstract
In accordance with an example embodiment, a transmission may include a housing, a plurality of gears, and an input shaft having a vent with a first opening at a first end of the input shaft and a second opening at an outside diameter of the input shaft. The vent allows air flow between the interior and the exterior of the transmission. A breather tube may have a first opening positioned within the vent and a second opening positioned outside the vent. The first opening of the breather tube can be smaller than the first opening of the vent. A vent cover may be positioned over the second opening of the vent. The vent cover may have a first opening offset from the second opening of the vent.
Claims15
A transmission comprising:
- a housing;
- a plurality of gears;
- an input shaft having a vent with a first opening at a first end of the input shaft and a second opening at an outside diameter of the input shaft, the vent including a first conduit extending from the first opening and a second conduit extending from the second opening to the first conduit;
- a breather tube having a first opening positioned within the vent and a second opening positioned outside the vent;
- and
- a vent cover positioned over the second opening of the vent, the vent cover having a first opening offset from the second opening of the vent;
- wherein the first opening of the vent has a smaller cross sectional area than the second opening of the vent;
- and
- wherein the first opening of the vent is axially between the first and second openings of the breather tube and the first opening of the breather tube is axially between the first and second openings of the vent.
A transmission comprising:
- a housing;
- a plurality of gears;
- an input shaft having a vent with a first opening at a first end of the input shaft and a second opening at an outside diameter of the input shaft, the vent including a first conduit extending from the first opening and a second conduit extending from the second opening to the first conduit;
- a breather tube having a first opening positioned within the vent and a second opening positioned outside the vent;
- and
- a vent cover positioned over the second opening of the vent, the vent cover having a first opening offset from the second opening of the vent;
- wherein the second conduit has a larger cross sectional area than the first conduit;
- and
- wherein the first opening of the vent is axially between the first and second openings of the breather tube and the first opening of the breather tube is axially between the first and second openings of the vent.
A transmission comprising:
- a housing;
- a plurality of gears;
- an input shaft having a vent with a first opening at a first end of the input shaft and a second opening at an outside diameter of the input shaft, the vent including a first conduit extending from the first opening and a second conduit extending from the second opening to the first conduit;
- a breather tube having a first opening positioned within the vent and a second opening positioned outside the vent;
- and
- a vent cover positioned over the second opening of the vent, the vent cover having a first opening offset from the second opening of the vent;
- wherein the vent cover includes a second opening;
- wherein the first opening of the vent cover is at a first axial side of the second opening of the vent and the second opening of the vent cover is at a second axial side of the second opening of the vent;
- and
- wherein the second opening of the vent is substantially axially centered between the first and second openings of the vent cover;
- and
- wherein the first opening of the vent is axially between the first and second openings of the breather tube and the first opening of the breather tube is axially between the first and second openings of the vent.
Dependencies are inferred from the claim text.