Invention Grant
- Patent Title: Oil passage switching valve and valve timing changing apparatus
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Application No.: US16989842Application Date: 2020-08-10
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Publication No.: US11692463B2Publication Date: 2023-07-04
- Inventor: Chikara Oikawa , Kairi Horiuchi
- Applicant: MIKUNI CORPORATION
- Applicant Address: JP Tokyo
- Assignee: MIKUNI CORPORATION
- Current Assignee: MIKUNI CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: JCIPRNET
- Priority: JP 19155154 2019.08.28 JP 20069446 2020.04.08
- Main IPC: F01L1/344
- IPC: F01L1/344 ; F01L1/46 ; F01L1/047

Abstract:
An oil passage switching valve suitable for a valve timing changing apparatus includes: a valve body, opening or closing an oil passage of operating oil; an urging spring, urging to position the valve body to a position corresponding to the retard position in a pause state; and a switching element, positioning the valve body to a position corresponding to the retard position when a state quantity of the operating oil is in a first range, and switching a position of the valve body in response to the state quantity (pressure or temperature) of the operating oil while resisting an urging force of the urging spring to position the valve body to a position corresponding to the advance position when the state quantity of the operating oil is in a second range greater than the first range.
Public/Granted literature
- US20210062689A1 OIL PASSAGE SWITCHING VALVE AND VALVE TIMING CHANGING APPARATUS Public/Granted day:2021-03-04
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