Internal combustion engine for gaseous fuel
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 12, 2023
Grant Date -
Jun 22, 2023
app pub date -
Dec 12, 2022
filing date -
Dec 17, 2021
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
An internal combustion engine for gaseous fuel includes a cylinder and a piston for reciprocal movement in the cylinder along a reciprocal axis, whereby a combustion chamber is at least partially delimited by the cylinder and the piston. The piston includes a piston crown facing the combustion chamber, a piston crown projection of the piston crown in a direction parallel to the reciprocal axis and onto a piston crown plane extending transversally to the reciprocal axis having a piston crown center point, the piston crown comprising a piston bowl surface defining a piston bowl and a piston rim portion enclosing the piston bowl surface. A piston bowl opening is the intersection between the piston rim portion and the piston bowl surface. The piston bowl opening has an opening center of gravity in the piston crown plane. The opening center of gravity is offset from the piston crown center point.
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- VOLVO TRUCK CORPORATION
International Classification(s)

- 2022 Application Filing Year
- F02B Class
- 413 Applications Filed
- 266 Patents Issued To-Date
- 64.41 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Ehleskog, Rickard | Hisings Backa, SE | 10 | 0 |
# of filed Patents : 10 Total Citations : 0 | |||
Eismark, Jan | Gothenburg, SE | 19 | 94 |
# of filed Patents : 19 Total Citations : 94 | |||
Hindi, Gustavo | Alafors, SE | 11 | 0 |
# of filed Patents : 11 Total Citations : 0 | |||
Simonsson, Tommy | Stenungsund, SE | 11 | 8 |
# of filed Patents : 11 Total Citations : 8 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- F02B Class
- 0 % this patent is cited more than
- 2 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jun 12, 2027 |
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 12, 2031 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 12, 2035 |
Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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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