Electromagnetic actuator, including sound muffling means, for op

Details Electromagnetic actuator, including sound muffling means, for op Electromagnetic actuator, including sound muffling means, for op

1997-12-18

1999-03-09

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Electrical system

25112901, 25112916, 335257, F01L 904

Patent

active

058787046

ABSTRACT:
An electromagnetic actuator, particularly for operating a cylinder valve of an internal-combustion engine, includes an electromagnet for generating an attracting electromagnetic force; an armature movable into contact with and away from the electromagnet; a spring arrangement connected to the armature and opposing the electromagnetic force; and a sound muffling device attached to the electromagnet for reducing sound transmission by body vibration from the electromagnet.

REFERENCES:
patent: 4455543 (1984-06-01), Pischinger et al.
patent: 4477789 (1984-10-01), Karlow
patent: 4515343 (1985-05-01), Pischinger et al.
patent: 5010923 (1991-04-01), Kouda et al.
patent: 5146196 (1992-09-01), Frank
patent: 5223812 (1993-06-01), Kreuter
patent: 5372228 (1994-12-01), VanLaningham et al.

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