Internal-combustion engines – Poppet valve operating mechanism – Electrical system
Patent
1996-11-12
1997-07-15
Lo, Weilun
Internal-combustion engines
Poppet valve operating mechanism
Electrical system
25112901, 25112916, 25112918, F01L 904
Patent
active
056473117
ABSTRACT:
An electromechanically actuated valve (12) for use as an intake or exhaust valve in an internal combustion engine. The valve (12) is actuated by a electromechanical actuator assembly (18) which includes a first electromagnet (22), second electromagnet (30) and third electromagnet (32). A first disk (38) is mounted to the valve (12) in a gap between the second and third electromagnets, and a second disk (44) is slidably mounted to the valve (12) between an insert (17) and the first electromagnet (22). An extension (42) on the second electromagnet (30) extends to the second disk (44), allowing the second disk (44) to move the second electromagnet (30) relative to the third electromagnet (32), thereby changing the gap and thus the valve lift. A first spring (48), mounted between the second electromagnet (30) and first disk (38), and a second spring (50), mounted between the first disk (38) and an actuator housing (20), create an oscillatory system which drives most of the valve movement during engine operation, thus reducing power requirements to actuate the valves while increasing the responsiveness of the valves.
REFERENCES:
patent: 4455543 (1984-06-01), Pischinger et al.
patent: 4515343 (1985-05-01), Pischinger et al.
patent: 4682574 (1987-07-01), Kreuter
patent: 4715330 (1987-12-01), Buchl
patent: 4715332 (1987-12-01), Kreuter
patent: 4719882 (1988-01-01), Kreuter
patent: 4777915 (1988-10-01), Bonvallet
patent: 4831973 (1989-05-01), Richeson, Jr.
patent: 5070826 (1991-12-01), Kawamura
patent: 5074259 (1991-12-01), Pusic
patent: 5095856 (1992-03-01), Kawamura
patent: 5115772 (1992-05-01), Kawamura
patent: 5131624 (1992-07-01), Kreuter et al.
patent: 5222714 (1993-06-01), Morinigo et al.
Liang Feng
Stephan Craig Hammann
Ford Global Technologies Inc.
Lo Weilun
Wilkinson Donald A.
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