Electromagnetically driven valve

Details Electromagnetically driven valve Electromagnetically driven valve

2006-07-26

2008-09-30

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Electrical system

C251S129010, C251S129160

Reexamination Certificate

active

07428887

ABSTRACT:
An electromagnetically driven valve includes a valve element, a main body, a disc, and a lower electromagnet. The valve element includes a valve stem, and is reciprocated in the direction in which the valve stem extends. The main body is provided at a position distant from the valve element. The disc includes a driving end that is moved in conjunction with the valve stem, and a pivoting end that is supported by the main body such that the pivoting end can be oscillated. The disc is oscillated around a central axis that extends at the pivoting end. The lower electromagnet is disposed so as to face the disc. The lower electromagnet includes a core made of magnetic material, and a coil wound in the core. The central axis is surrounded by a cylindrical bearing portion of the disc, which is made of magnetic material. The core has a cylindrical surface that faces the bearing portion.

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