EP 1318279 A1 20030611 - A permanent magnet enhanced electromagnetic valve actuator
Title (en)
A permanent magnet enhanced electromagnetic valve actuator
Title (de)
Elektromagnetischer Ventilaktuator mit Unterstützung durch Dauermagnet
Title (fr)
Actuateur électromagnétique de soupape avec assistance par aimant permanent
Publication
Application
Priority
US 73283901 A 20011204
Abstract (en)
An electromagnetic valve actuator (10) for actuating movement of a valve (12) in a vehicle engine is disclosed. The actuator (10) includes a valve assembly operatively connected to the valve for movement therewith. The valve assembly includes a shaft (14) connected to the valve (12), two armature plates (16,18) operatively associated with the shaft (14) each armature plate (16,18) having a permanent magnet as an integral part. An electromagnetic coil (24) is positioned between the two armature plates (16,18) for electromagnetically pushing and pulling the armature plates (16,18) and two springs (26,28) are engaged with the two armature plates (16,18) for biasing them in opposing directions. The permanent magnets are used to assist the electromagnetic coil (24) in holding the valve (12) in a desired position to reduce power consumption. <IMAGE>
IPC 1-7
IPC 8 full level
F01L 9/20 (2021.01)
CPC (source: EP)
F01L 9/20 (2021.01)
Citation (search report)
- [Y] US 6318312 B1 20011120 - BAUER ERWIN [DE], et al
- [Y] US 3882833 A 19750513 - LONGSTAFF KENNETH, et al
- [Y] DE 19712669 A1 19981008 - DAIMLER BENZ AG [DE]
- [Y] EP 0376716 A1 19900704 - ISUZU MOTORS LTD [JP]
- [Y] US 4533890 A 19850806 - PATEL BALKRISHNA R [US]
- [Y] US 5095856 A 19920317 - KAWAMURA HIDEO [JP]
- [Y] EP 0384663 A1 19900829 - ISUZU CERAMICS RES INST [JP]
- [Y] US 4779314 A 19881025 - AOKI YOSHIHIRO [JP]
- [Y] DE 10019739 A1 20001130 - FEV MOTORENTECH GMBH [DE]
- [Y] PATENT ABSTRACTS OF JAPAN vol. 1999, no. 09 30 July 1999 (1999-07-30)
Designated contracting state (EPC)
DE GB SE
DOCDB simple family (publication)
EP 1318279 A1 20030611; EP 1318279 B1 20050202; DE 60108767 D1 20050310; DE 60108767 T2 20050922
DOCDB simple family (application)
EP 01000702 A 20011204; DE 60108767 T 20011204