US 11,988,273 B2
Automatic opening and closing device for a vehicle lubrication flow passage
Myoung Soo Park, Hwaseong-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Nov. 4, 2022, as Appl. No. 17/981,202.
Claims priority of application No. 10-2022-0077353 (KR), filed on Jun. 24, 2022.
Prior Publication US 2023/0417315 A1, Dec. 28, 2023
Int. Cl. F16H 57/04 (2010.01); F16K 31/44 (2006.01)
CPC F16H 57/0443 (2013.01) [F16K 31/44 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An automatic opening and closing device for a lubrication flow passage of a vehicle, the device comprising:
a valve housing installed on one side of an oil pump of the vehicle;
a valve positioned in the valve housing, installed in a lubrication flow passage of the oil pump that passes through an inside of the valve housing, and operated to open and close the lubrication flow passage by rotation; and
a mass member installed on one end of the valve to surround a rotation axis of the valve, and rotated by an inertial force generated during a turn or acceleration/deceleration of the vehicle to rotate the valve.