US Patent No: 7,926,461
Number of patents in Portfolio can not be more than 2000
System for controlling fluid flow
Stats
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Apr 19, 2011
Issued date -
Dec 13, 2007
filing date -
12/000,568
serial no -
In Force
status
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Abstract
A system for controlling fluid flow to or from a cylinder of an internal combustion engine is disclosed. The system includes a drive shaft having a rotary valve mounted thereon. The system also includes a cylinder head a cylinder head accommodating the rotary valve and at least part of the drive shaft therein, the rotary valve being arranged to selectively open or close a flow opening in the cylinder head. The system also includes a source of rotation and a mechanical drive train rotatably coupling the source of rotation to the drive shaft. The mechanical drive train has a non-circular element rotatably coupled to the source of rotation and a non-circular element rotatably coupled to the drive shaft. The non-circular elements are rotatably coupled to cause a speed variation in one of the non-circular elements upon a constant rotation of the other non-circular elements.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 2008/0156,286 System and method for controlling fluid flow to or from a cylinder of an internal combustion engine | 7 | 2007 | |
| 2008/0156,289 Cylinder head for an internal combustion engine | 7 | 2007 | |
| 2008/0163,845 Method for providing a mixture of air and exhaust | 7 | 2007 | |
| 2008/0210,190 Rotary valve for use in an internal combustion engine | 8 | 2007 | |
| 2008/0210,191 Cylinder head arrangement including a rotary valve | 7 | 2007 | |
| 2008/0210,192 Cylinder head for an internal combustion engine | 8 | 2007 | |
| 2008/0210,311 Mounting arrangement for a rotary valve | 8 | 2007 | |
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| 5,967,108 Rotary valve system | 17 | 1996 | |
| 6,257,191 Rotary valve system | 18 | 1997 | |
| 6,293,242 Rotary valve system | 14 | 2000 | |
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| 4,989,558 Spherical rotary valve assembly for an internal combustion engine | 30 | 1989 | |
| 4,976,232 Valve seal for rotary valve engine | 38 | 1989 | |
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| 4,944,261 Spherical rotary valve assembly for an internal combustion engine | 34 | 1989 | |
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| 6,273,038 Rotary distribution system internal combustion engine | 5 | 1999 | |
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| 5,490,485 Rotary valve for internal combustion engine | 20 | 1994 | |
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| 4,953,527 Spherical rotary valve assembly for an internal combustion engine | 26 | 1988 | |
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| 4,776,306 Valve operating system for internal combustion engine | 18 | 1987 | |
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| 5,205,251 Rotary valve for internal combustion engine | 43 | 1992 | |
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| 4,969,918 Rotary valve operating mechanism | 18 | 1989 | |
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| 5,109,814 Spherical rotary valve | 33 | 1991 | |
| 5,361,739 Spherical rotary valve assembly for use in a rotary valve internal combustion engine | 24 | 1993 | |
| 5,711,265 Rotary valve drive mechanism | 13 | 1996 | |
| 6,308,676 Cooling system for rotary valve engine | 10 | 2000 | |
| 6,666,458 Valve seal for rotary valve engine | 12 | 2002 | |
| 6,718,933 Valve seal for rotary valve engine | 13 | 2002 | |
| 6,779,504 Spherical rotary intake valve for spherical rotary valve engine assembly | 10 | 2002 | |
| 6,789,516 Rotary valve and valve seal assembly for rotary valve engine having hemispherical combustion chambers | 10 | 2003 | |
| 6,880,511 Valve seal assembly for rotary valve engine | 11 | 2003 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Oct 19, 2014 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 19, 2018 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 19, 2022 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| 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 |