Externally serviceable transmission sump fill pipe and drain port assembly
AssigneeFord Global Technologies, LLC
InventorPatrick Holub
Life of this patent
Estimating the term…
Abstract
A transmission fluid sump for an automotive transmission comprising a reservoir portion, a threaded extension on the reservoir portion and a fill pipe threadably connected to the extension. A closure member seals a central opening in the extension independently of the fill pipe, thereby avoiding overlapping torque windows for the fill pipe and the closure member while providing a single leak flow path for the transmission fluid.
Claims9
A transmission fluid sump for an automotive transmission having a housing, a gear system in the transmission housing that defines torque flow paths from a driving shaft to a driven shaft, the transmission fluid sump comprising:
- a reservoir portion for transmission fluid secured to a lower side of the transmission housing;
- a threaded fill pipe extending vertically within the sump, the fill pipe having a central opening for accommodating filling of the reservoir portion with transmission fluid;
- a shoulder on the fill pipe;
- an upwardly extending sump extension within the reservoir portion;
- an internally threaded opening in the sump extension;
- a sump extension shoulder engaging the fill pipe shoulder when the fill pipe is threadably received in the internally threaded opening;
- and
- a closure member received in the sump extension opening, the closure member having a seal surface engageable with the reservoir portion.
A transmission fluid sump for an automotive transmission having a housing and a gear system in the transmission housing that defines torque flow paths from a driving shaft to a driven shaft, the transmission fluid sump comprising:
- a reservoir portion for transmission fluid secured to a lower side of the transmission housing;
- a threaded fill pipe extending vertically within the sump, the fill pipe having a central opening for accommodating filling of the reservoir portion with transmission fluid;
- a shoulder on the fill pipe;
- an upwardly extending sump extension within the reservoir portion;
- an internally threaded opening in the sump extension;
- a sump extension shoulder engaging the fill pipe shoulder when the fill pipe is threadably received in the internally threaded opening;
- a closure member received in the sump extension threaded opening;
- and
- means for establishing a fluid seal between the closure member and the sump extension.
Dependencies are inferred from the claim text.