US 12,379,001 B2
Drive axle assembly
Sung Su Yoo, Suwon-Si (KR); Seok Ho Bae, Seoul (KR); Hee Il Kim, Hwaseong-Si (KR); Chang Hee Jeong, Yongin-Si (KR); Yeong Wook Cho, Uiwang-Si (KR); and Bum Jae Lee, Yongin-Si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and HYUNDAI WIA Corporation, Changwon-si (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and HYUNDAI WIA Corporation, Changwon-si (KR)
Filed on Aug. 24, 2022, as Appl. No. 17/894,706.
Claims priority of application No. 10-2021-0135074 (KR), filed on Oct. 12, 2021.
Prior Publication US 2023/0111825 A1, Apr. 13, 2023
Int. Cl. B60B 35/12 (2006.01); B60B 27/00 (2006.01); F16D 3/223 (2011.01); F16J 15/54 (2006.01)
CPC F16D 3/223 (2013.01) [B60B 27/0036 (2013.01); B60B 35/128 (2013.01); F16J 15/54 (2013.01); F16D 2003/22323 (2013.01); Y10S 277/912 (2013.01); Y10S 464/906 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A drive axle assembly comprising:
a wheel bearing mounted to an axle housing;
a shaft assembly including a first shaft on an inboard side thereof to which a driving force of a power train is transmitted, and a second shaft on an outboard side thereof which is shaft-connected to inside of the axle housing by a constant-velocity joint and is separably assembled to the first shaft; and
a boot assembly including a first end portion fixed to an external ring of the wheel bearing and a second end portion assembled to the shaft assembly to be rotatable relative to the shaft assembly, and configured to restrict rotation of a boot and prevent foreign substances from being introduced therein,
wherein a flow fan configured to flow grease inside the axle housing is provided at an intermediate portion of the second shaft.