Transmission oil pan
An oil pan includes a chamber for containing a liquid, a first passage for containing a coolant and forming a first flow path along a length of the chamber, including a first surface located between the chamber and the first passage, and a second passage for containing the liquid coolant, communicating with the first passage and forming a second flow path along a length of the chamber, including a second surface located between the chamber and the second first passage.
1. An oil pan comprising:
a chamber for containing a first liquid;
an inlet and an outlet;
a first passage along which a second liquid flows from the inlet in a first direction, and including a first surface that prevents communication between the chamber and the first passage;
a second passage communicating with the first passage and along which the second liquid flows toward the outlet in a second direction opposite the first direction, including a second surface that prevents communication between the chamber and the second passage, and a bulkhead that prevents fluid flow therepast between the first passage and the second passage.
2. The oil pan of claim 1 , further comprising:
a mounting surface for securing the oil pan to a case, from which the first liquid enters the chamber.
3. The oil pan of claim 1 , further comprising:
first and second end walls; and
first and second side walls connected to the end walls, the end walls, the side walls, the first surface and the second surface forming a boundary around the chamber; and
wherein the second liquid enters the first passage through the inlet, and the second liquid exits the second passage through the outlet.
4. The oil pan of claim 1 , further comprising:
first fins secured to the first surface and extending into the chamber and the first passage;
second fins secured to the second surface and extending into the chamber and the second passage.
5. The oil pan of claim 1 , further comprising:
first fins secured to the first surface and extending into the chamber; and
second fins secured to the second surface and extending into the chamber.
6. An oil pan comprising:
a bottom surface;
a chamber for containing a first liquid, including a lower surface spaced from the bottom surface;
a first passage along which a second liquid flows in a first direction, the lower surface preventing communication between the chamber and the first passage; and
a second passage communicating with the first passage and along which the second liquid flows in a second direction opposite the first direction, the lower surface preventing communication between the chamber and the second passage, and a bulkhead that prevents fluid flow therepast between the first passage and the second passage.
7. The oil pan of claim 6 , further comprising:
the bulkhead extends between the bottom surface and the lower surface, and along a length of the chamber, separating the first passage from the second passage.
8. The oil pan of claim 6 , further comprising:
an inlet through which the second liquid enters the first passage, and an outlet through which the second liquid exits the second passage;
first and second end walls; and
first and second side walls connected to the end walls, the end walls, the side walls, and the lower surface forming a boundary around the chamber.
9. The oil pan of claim 6 , further comprising:
first fins secured to the lower surface and extending into the chamber and the first passage;
second fins secured to the lower surface and extending into the chamber and the second passage.
10. The oil pan of claim 6 , further comprising:
first fins secured to the first surface and extending into the chamber; and
second fins secured to the second surface and extending into the chamber.