Reciprocating piston combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Apr 1, 2010
app pub date -
Apr 10, 2006
filing date -
Apr 29, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A reciprocating piston combustion engine with at least one cylinder (2) in which a piston (1) is located, so it can be moved in a reciprocating manner; a first crankshaft (4); a second crankshaft (6); wherein the first crankshaft (4) and the second crankshaft (6) extend parallel to each other and rotate synchronously in opposite directions; wherein the rotation axes (X, X') of the two crankshafts (4, 6) extend parallel to a common cylinder midplane (Z) and laterally offset relative to it; wherein a first piston rod and second piston rod (3, 5) are arranged at the reciprocating piston (1), so that the first piston rod (3) is pivotably connected to the to the reciprocating piston (1) with its first end and rotatably connected to a crankpin (40) of the first crankshaft (4), and that the second piston rod (5) is pivotably connected with its first end to the reciprocating piston (1), and rotatably connected to the crankpin (60) of the second crankshaft (6) with its second end, and wherein the crankshafts (4, 6) are engaged with each other through synchronizing gears (42, 62), is characterized in, that the two crankshafts (4, 6) are supported in at least one common bearing block (7; 107; 207); that the bearing block (7, 107, 207) is made of a material with a first thermal expansion coefficient, that the synchronizing gears (42, 62) are made of a material with a second thermal expansion coefficient, and that the dimensions in the radial direction of the bearing block (7; 107; 207) and of the synchronizing gears (42, 62), and the first and the second thermal expansion coefficients, are matched in such a manner, that the thermal expansion of the bearing block (7; 107; 207) occurring between the two rotation axes (X, X') of the bearing block (7; 107; 207) is substantial equal to the thermal expansion of the synchronizing gears (42, 62).
First Claim
all claims..Other Claims data not available
Family
Country | kind | publication No. | Filing Date | Type | Sub-Type |
---|---|---|---|---|---|
DE | B4 | DE102005020064 | Apr 29, 2005 | Patent | Grant |
Type : Patent Sub-Type : Grant | |||||
PATENT (SECOND PUBLICATION) | Hubkolben-Brennkraftmaschine | Feb 15, 2007 | |||
WO | A1 | WO2006117060 | Apr 10, 2006 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
INTERNATIONAL APPLICATION PUBLISHED WITH INTERNATIONAL SEARCH REPORT | HUBKOLBEN-BRENNKRAFTMASCHINE | Nov 09, 2006 | |||
EP | A1 | EP1880093 | Apr 10, 2006 | Patent | Application |
Type : Patent Sub-Type : Application | |||||
APPLICATION PUBLISHED WITH SEARCH REPORT | HUBKOLBEN-BRENNKRAFTMASCHINE | Jan 23, 2008 |
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
NEANDER MOTORS AG | WERFTBAHNSTR 8 KIEL 24143 |
International Classification(s)

- 2006 Application Filing Year
- F02B Class
- 869 Applications Filed
- 418 Patents Issued To-Date
- 48.11 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Baindl, Rupert | Geretsried, DE | 5 | 7 |
# of filed Patents : 5 Total Citations : 7 | |||
Betzmeir, Helmut | Ottobrunn, DE | 5 | 39 |
# of filed Patents : 5 Total Citations : 39 |
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Patent Citation Ranking
- 3 Citation Count
- F02B Class
- 5.31 % this patent is cited more than
- 15 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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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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