PISTON OF AN INTERNAL COMBUSTION ENGINE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Mar 12, 2015
app pub date -
Apr 12, 2013
filing date -
Apr 13, 2012
priority date (Note) -
Published
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
A piston of an internal combustion engine is disclosed. The piston may have a piston sleeve with a centre axis and a piston base with a diameter D delimiting the piston sleeve at a top of the piston sleeve. The piston base may have a piston base rim of width b and a piston bowl with a depth t. The piston bowl may be designed as a pot bowl, which may have a piston bowl base and a piston bowl wall with a maximum diameter d4 adjoining the piston bowl base. The piston bowl may have an opening cross-section aligned symmetrically relative to the centre axis. The opening cross-section may have a minimum diameter da, which is smaller than the diameter d4. A flow cut-off edge designed as a nose may be formed in the opening cross-section and may project in the radial direction inwards over the piston bowl wall.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
CATERPILLAR ENERGY SOLUTIONS GMBH | CARL-BENZ-STRASSE 1 MANNHEIM 68167 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Böwing, Robert | Innsbruck, AT | 6 | 35 |
# of filed Patents : 6 Total Citations : 35 | |||
Gruber, Steffen | Edingen-Neckarhausen, DE | 6 | 42 |
# of filed Patents : 6 Total Citations : 42 | |||
Rapp, Manfred | Ubstadt-Weiher, DE | 7 | 57 |
# of filed Patents : 7 Total Citations : 57 | |||
Schaller, Gustav | Mannheim, DE | 1 | 3 |
# of filed Patents : 1 Total Citations : 3 |
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Patent Citation Ranking
- 3 Citation Count
- F02B Class
- 10.31 % this patent is cited more than
- 10 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Sep 12, 2026 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
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