Planetary mechanism having a fluid baffle
AssigneeCaterpillar Tractor Co.
InventorSteven A. Daniel
Life of this patent
Estimating the term…
Abstract
A baffle (78) encircles a planetary mechanism (10) having a ring gear element (18), a sun gear element (20), a planet carrier element (22) and a plurality of planet gear elements (24), and is connected to a stationary support (30, 48, 50, 66). The baffle (78) includes wiping means (90) for wiping fluid from one of the elements (18, 20, 22, 24) in response to rotation thereof and directing fluid that would otherwise cause high drag losses radially away from the planetary mechanism (10).
Claims16
In a planetary mechanism (10) of the type having a stationary support (30,48,50,66), a ring gear element (18), a sun gear element (20), a planet carrier element (22), and a plurality of planet gear elements (24) rotatably mounted on the planet carrier element (22) and in meshing engagement with the sun gear element (20) and the ring gear element (18), the elements (18,20,22,24) being rotatably connected to the stationary support (30,48,50,66), the improvement comprising:
- a baffle (78) encircling the elements (18,20,22,24) of the planetary mechanism (10) and defining with the support (30,48,50,66) an internal chamber (96) and an external chamber (98), the baffle (78) including an opening (86/88) and wiping means (90) for wiping fluid from one of the elements (18,20,22,24) of the planetary mechanism (10) and directing fluid from the internal chamber (96) to the external chamber (98) through the opening (86/88) and reducing the fluid level within the internal chamber (96) in response to rotation of the one element (18,20,22,24).
In a planetary mechanism (10) of the type having a stationary support (30,48,50,66), a ring gear element (18), a sun gear element (20), a planet carrier element (22), and a plurality of planet gear elements (24) rotatably mounted on the planet carrier element (22) and in meshing engagement with the sun gear element (20) and the ring gear element (18), the elements (18,20,22,24) being rotatably connected to the stationary support (30,48,50,66), the improvement comprising:
- a baffle (78) encircling the elements (18,20,22,24) of the planetary mechanism (10) and defining with the support (30,48,50,66) an internal chamber (96) and an external chamber (98), the baffle (78) including an opening (86/88) therethrough and a lip (92/94) located at the opening (86/88) of a construction sufficient for directing fluid radially away from the planetary mechanism (10) and internal chamber (96) to the external chamber (98) in response to rotation of the ring gear element (18).
Dependencies are inferred from the claim text.