Internal combustion engines having double cylinder units
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 6, 2006
Grant Date -
Nov 18, 2004
app pub date -
Mar 12, 2004
filing date -
Mar 14, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An internal combustion engine may comprise at least one double cylinder (17). A piston (10, 12) is reciprocally movably disposed in each individual cylinder (14, 16) of the double cylinder and each piston is connected to a crankshaft (4). The pistons preferably reciprocate in the same direction within the individual cylinders. A cylinder space (19, 20) is defined within the cylinders above each piston head. Preferably, the cylinder spaces are formed such that the cylinder spaces communicate during at least a portion of the reciprocal movement of the pistons.
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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META MOTOREN- UND ENERGIE-TECHNIK GMBH | KAISERSTR 100 52134 HERZOGENRATH |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Kreuter, Peter | Aachen, DE | 49 | 983 |
# of filed Patents : 49 Total Citations : 983 | |||
von, Essen Mathias | Alsdorf, DE | 5 | 29 |
# of filed Patents : 5 Total Citations : 29 |
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Patent Citation Ranking
- 10 Citation Count
- F02B Class
- 3.34 % this patent is cited more than
- 19 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 |
---|---|---|---|
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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