US 11,841,075 B2
Oil storage structure of transmission case
Hyungho Oh, Mokpo Jeollanam-do (KR); Yongwoo Jeon, Incheon (KR); Solae Gim, Seoul (KR); Taekjin Lee, Seoul (KR); Jaeyoung Kim, Seoul (KR); Jaemin Seo, Hwaseong Gyeonggi-do (KR); and Yonghun Yoon, Seoul (KR)
Assigned to JATCO LTD, Fuji (JP)
Filed by JATCO Ltd, Fuji (JP)
Filed on Feb. 26, 2021, as Appl. No. 17/186,071.
Claims priority of application No. 2020-035544 (JP), filed on Mar. 3, 2020.
Prior Publication US 2021/0277990 A1, Sep. 9, 2021
Int. Cl. F16H 57/04 (2010.01); F01M 11/00 (2006.01)
CPC F16H 57/0452 (2013.01) [F01M 11/0004 (2013.01); F01M 2011/002 (2013.01); F01M 2011/007 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An oil storage structure of a transmission case, the oil storage structure comprising:
an oil pan that closes a lower opening of the transmission case and forms an oil pool in a lower space inside the transmission case; and
a strainer having a suction port for oil located in the oil pool, wherein
the suction port for the oil is provided so as to face a bottom wall portion of the oil pan with a first gap in between;
the bottom wall portion of the oil pan is provided with a protruding portion protruding toward the suction port, with the protruding portion being formed in a direction across the suction port as viewed from the bottom wall portion;
the bottom wall portion of the oil pan is provided with a facing portion that faces the suction port of the strainer with a second gap in between, and bulges in a direction away from the suction port, thereby deepening the oil pool; and
the protruding portion is provided on the facing portion,
wherein the suction port has a rectangular shape or an oval shape, and has longitudinal sides extending in a vehicle width direction of a vehicle including the transmission case, and
the protruding portion of the bottom wall portion is arranged across the suction port in a shorter side direction of the suction port as viewed from the bottom wall portion.