Patent · US Expired

Arrangement for electromagnetically operated actuators

US4515343A · kind A · utility

68Cited by

4References

23Claims

0Family size

Assignee

FEV Forschungsgesellschaft fur Energietechnik und Verbrennungsmotoren mbH · DE

Inventors

Franz Pischinger · Aachen, DE
Peter Kreuter · Aachen, DE

Key dates

Filing date	Mar 28, 1984
Grant date	May 7, 1985
Priority date	—
Expiry date	Mar 28, 2004

Classification

Technology area (CPC H)Electricity
CPC primaryH01F2007/1692
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

An arrangement for an electromagnetically operated actuator for a displacement-type engine having a spring-mass valve actuating oscillatory system which includes a valve having an armature thereon and a pair of electromagnets for maintaining the valve in at least first and second final operational positions of the maximum amplitude of vibration, the armature and at least one of the electromagnets comprising a contact dampener for the armature, at least one of the electromagnets being mounted in the housing by a hydraulic length-compensating element such that the distance between the valve seat and the pole area of the electromagnet is adjusted to correspond to the distance between the valve head and the pole area of the armature, so that the desired amount of dampening is consistently effected as the armature approaches the electromagnet and the valve approaches its seat.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.