Method and device for estimating the position of an actuator body in an electromagnetic actuator to control a valve of an engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 3, 2003
Grant Date -
Feb 7, 2002
app pub date -
May 4, 2001
filing date -
May 4, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Method and device for estimating the position of an actuator body in an electromagnetic actuator to control a valve of an engine, according to which the actuator body, which is at least partly made of ferromagnetic material, is displaced towards at least one electromagnet, by the effect of the force of electromagnetic attraction generated by the electromagnet itself; the position of the actuator body relative to the electromagnet is determined on the basis of the value assumed by the reluctance of a magnetic circuit constituted by the electromagnet and by the actuator body.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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MAGNETI MARELLI S P A | 20011 CORBETTA (MI) |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Rossi, Carlo | Bologna, IT | 14 | 122 |
# of filed Patents : 14 Total Citations : 122 | |||
Tonielli, Alberto | Imola, IT | 3 | 45 |
# of filed Patents : 3 Total Citations : 45 |
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Patent Citation Ranking
- 8 Citation Count
- F16K Class
- 4.96 % this patent is cited more than
- 22 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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May 21, 1985 | I | Issuance | |
Mar 20, 1985 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Jan 16, 1985 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:OCH, RUDOLF;REEL/FRAME:004369/0777 Owner name: FRENCO VERZAHNUNGSLHREN GMBH, FISCHBACHER HAUPTSTR Effective Date: Jan 16, 1985 |
Dec 21, 1982 | F | Filing | |
Dec 21, 1982 | PD | Priority Date |

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