US 11,988,228 B2
Air compressor for vehicle
Gun Woong Park, Daejeon (KR); Chi Yong Park, Daejeon (KR); Jong Sung Lee, Daejeon (KR); and Kyu Sung Choi, Daejeon (KR)
Assigned to Hanon Systems, Daejeon (KR)
Appl. No. 17/641,850
Filed by Hanon Systems, Daejeon (KR)
PCT Filed Sep. 29, 2020, PCT No. PCT/KR2020/013323
§ 371(c)(1), (2) Date Mar. 10, 2022,
PCT Pub. No. WO2021/071169, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 10-2019-0125388 (KR), filed on Oct. 10, 2019.
Prior Publication US 2022/0403854 A1, Dec. 22, 2022
Int. Cl. F04D 29/58 (2006.01); F04D 25/06 (2006.01); F04D 29/02 (2006.01); F04D 29/057 (2006.01); F04D 29/063 (2006.01); F04D 29/42 (2006.01); F16C 32/06 (2006.01); F16C 37/00 (2006.01)
CPC F04D 29/582 (2013.01) [F04D 25/06 (2013.01); F04D 29/02 (2013.01); F04D 29/057 (2013.01); F04D 29/063 (2013.01); F04D 29/4206 (2013.01); F16C 32/06 (2013.01); F16C 37/002 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An air compressor for a vehicle, comprising:
a compression portion disposed on one side of a rotor to generate compressed air by compressing air which flows therein;
a bearing portion configured to support the rotor in a front-rear direction;
a cooling circulation flow path configured to allow the compressed air discharged from the compression portion to flow in the bearing portion to cool the bearing portion; and
a bypass flow path configured to allow the compressed air to bypass at least a part of the bearing portion,
wherein the cooling circulation flow path comprises a cooling flow path disposed outside the rotor to move some of the air compressed by the compression portion from a front of the air compressor to a rear of the air compressor; and a circulation flow path disposed inside the rotor to circulate and supply the air moved from the cooling flow path to the compression portion,
wherein the cooling circulation flow path further comprises a chamber disposed between the cooling flow path and the circulation flow path,
wherein the bypass flow path extends toward the rotor in a direction toward the chamber.