The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 2021
Filed:
Oct. 31, 2019
Hyundai Mobis Co., Ltd., Seoul, KR;
Byeong Jin Choi, Yongin-si, KR;
HYUNDAI MOBIS Co., Ltd., Seoul, KR;
Abstract
A master cylinder of a vehicle brake includes a housing, a motor, a screw, a moving piston, a guide, and a pressurizing part. The housing includes a port configured to move hydraulic fluid. The motor is connected to the housing and configured to supply rotation power. The screw is rotatably installed in the motor and configured to rotate in response to the rotation power. The moving piston is engaged with an outside of the screw, and is configured to move in a longitudinal direction of the housing in response to rotation of the screw. The guide is blocked by the housing and constrained from rotating, and is configured to constrain rotation of the moving piston and guide linear movement of the moving piston in the longitudinal direction. The pressurizing part is installed between the housing and the guide, and is configured to pressurize the guide via an elastic force.