Invention Application
- Patent Title: HARSH CONDITION CONTROLS FOR ELECTRICALLY LATCHED SWITCHING ROLLER FINGER FOLLOWER
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Application No.: US16628435Application Date: 2018-06-22
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Publication No.: US20200165946A1Publication Date: 2020-05-28
- Inventor: Petr Liskar
- Applicant: Eaton Intelligent Power Limited
- International Application: PCT/US18/38935 WO 20180622
- Main IPC: F01L13/00
- IPC: F01L13/00 ; F01L1/18 ; F01L1/24

Abstract:
A method of operating an electromagnetic latch assembly of a type that includes an electromagnet and a latch pin that is stable independently from the electromagnet in both first and second positions includes energizing the electromagnet systematically over a period in a manner that enhances the functionality of the electromagnetic latch assembly without causing the latch pin to move between the first and second positions. The period may be a period over which the electromagnetic latch assembly is too cold and the electromagnet may be energized in a manner that is effective for heating. Alternatively, the period may be one over which the electromagnetic latch assembly is subject to high inertial forces and the electromagnet may be energized in a manner that is effective to enhance latch pin retention.
Public/Granted literature
- US10900390B2 Harsh condition controls for electrically latched switching roller finger follower Public/Granted day:2021-01-26
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