Title:
【発明の名称】電磁力バルブ駆動装置
Document Type and Number:
Japanese Patent JP2759362
Kind Code:
B2
Abstract:
PURPOSE:To enable stably opening/closing control of an electromagnetic valve at all times by allowing secondary coils connected to a plurality of respective intake/exhaust valves arranged in the vicinity of one same cylinder to drive those valves in their reciprocating motions, by means of an induced current caused by a proceeding magnetic field from a fixed magnetic pole. CONSTITUTION:Two intake valves 1 formed with a ceramics material and heat resistant non-magnetic alloy are supported, in a cylinder 12, which their free reciprocating motions, and respective mobile pieces 2 are connected to shaft end parts of respective valves 1. These mobile pieces 2 are composed of magnetic passages 21 formed with cylindrical magnetic substance, and a plurality of secondary coils 22 formed on the outer circumference part of the magnetic passages 21. Also a pair of driving parts 3 consisting of fixed magnetic poles 31 to 34 arranged opposing to the secondary coils 22, and coils 35 to 38 respectively wound around the magnetic poles 31 to 34, are arranged while sandwiching the mobile pieces 2. A magnetic plate 4 opposing to the intake valves 1 through a minute clearance at the time of seating of the intake valves 1 is arranged on the top part of the mobile pieces 2, and also, a lower electro- magnet 42 is arranged on the side surfaces of the mobile pieces 2.
Inventors:
KAWAMURA HIDEO
Application Number:
JP32546389A
Publication Date:
May 28, 1998
Filing Date:
December 15, 1989
Export Citation:
Assignee:
ISUZU SERAMITSUKUSU KENKYUSHO KK
International Classes:
F01L9/04; F16K31/06; (IPC1-7): F01L9/04; F16K31/06
Domestic Patent References:
| JP58183805A | ||||
| JP5970013U | ||||
| JP55161007U |
Attorney, Agent or Firm:
Minoru Tsuji