Device having tunnel portion and catch tank portion

Inventors: Yuuki Tanaka (Fuji, JP); Yutaka Okumura (Numazu, JP); Yusuke Suzuki (Iwata, JP); Yojiro Mochizuki (Fujinomiya, JP)

Assignees: JATCO Ltd; NISSAN MOTOR CO., LTD.

H02K9/193 F16H57/0423 F16H57/0424 F16H57/045 F16H57/0457 F16H57/0471 F16H57/0476 F16H57/0483 F16N31/02 H02K5/203 H02K7/116 F16H2057/02034

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Quick Facts

Patent No.: US 12671300
App. No.: 18/548,386
Granted: Jun 30, 2026
Kind: B2

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Abstract

A component comprising: a first case portion having a tunnel portion having an opening end opening toward an axial direction; and a second case portion having a catch tank portion opening upward, wherein the first case portion and the second case portion face each other such that a bottom portion of the tunnel portion and a bottom portion of the catch tank portion are coupled to each other, an opening area of the opening end of the tunnel portion on the second case portion side is larger than an opening area of the opening end of the tunnel portion on a side opposite to the second case portion side, the tunnel portion as a whole is inclined downward from the second case portion side of the tunnel portion to the side opposite to the second case portion side of the tunnel portion, and the second case portion side of the tunnel portion is inclined downward toward the catch tank portion.

Claims (23)

1 . A component device comprising:

a first case portion having a tunnel portion; and

a second case portion having a catch tank portion which is independent from the tunnel portion and which opens upward, wherein

the first case portion and the second case portion face each other such that a bottom portion of the tunnel portion in the first case portion and a bottom portion of the catch tank portion in the second case portion are coupled to each other,

a first opening at a first end of the tunnel portion on a second case portion side is larger than a second opening at a second end of the tunnel portion on a side opposite to the second case portion side,

the tunnel portion is higher at the second case portion side than at the side opposite to the second case portion side, and

a part of the tunnel portion on the second case portion side is inclined downward toward the catch tank portion.

2 . The device according to claim 1 , wherein

the first case portion is an outer peripheral wall of a refrigerant cavity.

3 . The device according to claim 1 , wherein

the catch tank portion communicates with a case oil passage provided in the second case portion.

4 . The device according to claim 3 , wherein

an opening area of an inlet of the case oil passage is smaller than the first opening at the first end of the tunnel portion on the second case portion side.

5 . The device according to claim 3 , wherein

the catch tank portion is provided with a partition wall that partitions an inlet of the case oil passage and the first opening at the first end of the tunnel portion on the second case portion side, and

a height of the partition wall is smaller than a height of a surrounding wall that surrounds the catch tank portion.

6 . The device according to claim 5 , wherein

the catch tank portion is partitioned by the partition wall into a first groove portion communicating with the first opening at the first end of the tunnel portion on the second case portion side and a second groove portion communicating with the inlet of the case oil passage,

the first case portion is provided with a facing portion facing the second groove portion of the catch tank portion, and

one end of the second groove portion and the facing portion are coupled to each other.

7 . The device according to claim 1 , further comprising:

a guide member housed in the catch tank portion and configured to guide oil into the catch tank portion.

8 . The device according to claim 1 , wherein the tunnel portion and the catch tank portion are coupled to each other only at the respective bottom portions.