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1. (WO2018065775) AN ACTUATION APPARATUS AND METHODS OF OPERATION THEREOF

Pub. No.:    WO/2018/065775    International Application No.:    PCT/GB2017/053018
Publication Date: Fri Apr 13 01:59:59 CEST 2018 International Filing Date: Fri Oct 06 01:59:59 CEST 2017
IPC: F01L 1/18
F01L 9/04
Applicants: CAMCON AUTO LIMITED
Inventors: STONE, Roger
Title: AN ACTUATION APPARATUS AND METHODS OF OPERATION THEREOF
Abstract:
A rotary electromagnetic actuator (2) includes a biasing assembly (30) for applying a torque to its rotor (4). Such an actuator may be used to operate a poppet valve of an internal combustion engine. The biasing assembly is moveable between a first configuration and a second configuration, wherein the biasing assembly stores a higher amount of potential energy in its second configuration than in its first configuration. The apparatus includes a latching mechanism (50) for selectively latching the biasing assembly in its second configuration.