Electromagnetic fuel injector with adjustable armature spring
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United States of America Patent
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Jan 12, 1982
Grant Date -
N/A
app pub date -
Jul 21, 1980
filing date -
Jul 21, 1980
priority date (Note) -
Expired
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Abstract
An electromagnetic fuel injector has an axially extending hollow, tubular guide pin fixed in one end of the through bore of a solenoid pole piece and slidably received in one end of a cup-shaped armature whereby to axially guide the armature during its movement relative to the solenoid pole piece and is engageable at one end thereof with a surface of the armature whereby to serve as an abutment stop for the armature so as to establish a predetermined minimum working air gap between the opposed working surfaces of the armature and an associated solenoid pole piece. An armature return spring is loosely received in the tubular guide pin has one end thereof in abutment with the armature to normally bias the armature in an axial direction away from the solenoid pole piece and has its opposite end in abutment against an externally accessible abutment screw threaded into the opposite end of the bore of the solenoid pole piece and having an end therefore extending into the tubular guide pin so as to abut against the opposite end of the armature return spring whereby the force of the armature return spring can be adjusted as desired.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- GENERAL MOTORS CORPORATION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
TePastte, Albert | Wyoming, MI | 1 | 20 |
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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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