Quotables
"During my service in the United States Congress, I took the initiative in creating the Internet."
Al Gore ; The basis for the later misquote by US Republicans that Gore had "invented" the Internet. Gore was the leading political champion of the modern-day Internet.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8069833 | Reciprocating engine A piston 2 includes a piston upper body 8 made up of a crown portion 3 for receiving combustion pressure and a land portion 7 having piston ring grooves 4, 5, and 6, as well as a skirt portion 9 formed on the lower si... | 12/06/2011 |
| 8061324 | High performance resin piston internal combustion engine A piston-type internal combustion engine is formed of a high performance synthetic resin material. The cylinders and pistons have an octagonal profile. Two or three rows of pin roller bearings are positioned in transverse semi-cylindrical grooves formed on the cylin... | 11/22/2011 |
| 7931003 | Reciprocating engine A reciprocating engine 1 includes an annular top ring 5 serving as a first piston ring disposed adjacent to a top surface (head end surface) 4 of a piston 3 defining a combustion chamber 2; an annular second ring 6 serving a... | 04/26/2011 |
| 7647911 | Small end con rod guidance piston A connecting rod for a piston assembly includes first and second guidance members for guiding a piston assembly within a cylinder during piston stroke along a first axis. The guidance members are supported by first and second support ribs extending from a shaft of t... | 01/19/2010 |
| 7370627 | Optimized low emission two-stroke internal combustion diesel engine An optimized two-stroke internal combustion diesel engine, suitable for locomotive applications, has been developed to meet the EPA locomotive Tier 2 emission standards. To achieve a low emission target below the EPA Tier 2 standards for NOx (5.5 g/bhp-hr... | 05/13/2008 |
| 7341648 | Method for coating piston rings for internal combustion engine The invention relates to a method for coating piston rings (10) for internal combustion engines, wherein at least the bearing surface of the piston ring is provided with an anti-abrasion and anti-corrosion coating (12) by means of a PVD or electroplati... | 03/11/2008 |
| 7302884 | Piston A number of embodiments of a piston may have a shape that provides enhanced piston guidance. In such embodiments, the piston shape may include an axial profile that is configured to provide certain thrust load characteristics. ... | 12/04/2007 |
| 7291384 | Piston ring and thermal spray coating used therein, and method for manufacturing thereof The piston ring of the present invention comprises a thermal spray coating comprising chromium carbide particles having an average particle size of 5 μm or less, and a matrix metal composed of a Ni—Cr alloy or a Ni—Cr alloy and Ni at least on an outer periphera... | 11/06/2007 |
| 7255084 | Piston with a skirt having a low coefficient of friction A piston for an internal combustion motor has a skirt with a surface, which is at least partially polished and thereafter coated with a coating having a hardness of greater than 8 GPa and having a coefficient of friction of less than 0.20. The piston has an increase... | 08/14/2007 |
| 7255083 | Sliding structure for automotive engine A sliding structure for an automotive engine includes a sliding member with a sliding portion and a lubricant applied to the sliding portion so that the sliding portion can make sliding contact with a counterpart member via the lubricant. The sliding member is eithe... | 08/14/2007 |
| 7228786 | Engine piston-pin sliding structure An engine piston-pin sliding structure includes a piston pin slidably engaged into a pin boss of an engine piston and having a base and a hard carbon coating formed on the base so as to define a sliding surface slidable over a bearing surface of the pin boss and a l... | 06/12/2007 |
| 7181379 | Variable altitude simulator system for testing engines and vehicles A method and system for controlling both the pressure and temperature at the engine air intake, engine crankcase, and at the engine exhaust so that pressure and temperature conditions are equilibrated. Engines are tested both at simulated high altitudes (operating a... | 02/20/2007 |
| 7176166 | Slide member The present invention intends to provide a slide member with increasing an abrasion resistance and an adherence, a friction coefficient is further decreased. A part of the base member surface of the slide member is provided with a streak so that a surface rou... | 02/13/2007 |
| 7171936 | Piston having a patterned coating and method of applying same The present invention relates to a piston adapted for reciprocal movement within the cylinders of an internal combustion engine. The piston includes a body having a crown formed at the uppermost margins of the body and a skirt, depending from the crown, adapted for ... | 02/06/2007 |
| 7094474 | Composite powder and gall-resistant coating A composite powder includes an FeMo based first powder including between about 20% and about 55% by weight Fe and between about 45% and about 80% by weight of Mo. The composite powder also includes an aluminum bronze based second powder blended with the FeMo based f... | 08/22/2006 |
| 7086362 | Automotive engine valve mechanism system shim and lifter of these and cam shaft Disclosed is a shim or a valve lifter for an automotive engine valve driving system that slides against a cam lobe of a camshaft to drive an intake/exhaust valve of an internal combustion engine. The shim or lifter has the top of a sliding surface thereof opposing t... | 08/08/2006 |
| 7069898 | Liquid-cooled engine To simplify the connection of a cylinder barrel and a cylinder head to, a crankcase and to reduce the weight of an engine. A liquid-cooled engine is provided with the crankcase wherein a cylinder barrel having a water jacket on the cylinder side for cooling is conne... | 07/04/2006 |
| 7066115 | Internal combustion engine/hydraulic motor/fluid pump provided with opposite pistons An internal combustion engine has a pair of opposed pistons held within an elliptical guide of the engine housing. The pistons reciprocate within a cylinder attached to a shaft. A combustion chamber is formed within the shaft and positioned to be between the pistons... | 06/27/2006 |
| 7066124 | Engine for scooter In a scooter engine having valve lifters (33) interposed between intake valves (16) and a cam shaft (31), as well as between exhaust valves (17) and a cam shaft (32), with its axial line (C) of a cylinder (7) extending towar... | 06/27/2006 |
| 6945210 | Combustion chamber with one concave surface and three convex surfaces A combustion chamber assembly for use in a piston of a diesel engine includes a combustion chamber defined intersecting a crown of the piston, the combustion chamber being defined by a concave surface in cooperation with three convex surfaces, adjacent surfaces havi... | 09/20/2005 |
| 6923153 | Piston and connecting rod assembly having phosphatized bushingless connecting rod and profiled piston pin The present invention relates to a connecting rod and piston pin assembly for an internal combustion engine to improve wear of the piston/connecting rod pivot point and reduce deformation of the pin bore. To this end, the assembly includes a piston having a pin bore... | 08/02/2005 |
| 6904878 | Internal combustion engine with novel fuel/air delivery system Blower forces fuel/air mixture into bore of cylinder head against small diameter piston of compound piston assembly, forcing assembly down in engine cylinder, permitting fuel/air mixture to enter main cylinder of engine in which it is ignited. Exhaust forces assembl... | 06/14/2005 |
| 6886521 | Sliding structure for automotive engine A sliding structure for an automotive engine includes a sliding member with a sliding portion and a lubricant applied to the sliding portion so that the sliding portion can make sliding contact with a counterpart member via the lubricant. The sliding member is eithe... | 05/03/2005 |
| 6640779 | Low cost new internal combustion engine with increased mechanical efficiency, fuel saver and pollution controlled A low cost new internal combustion engine with increased mechanical efficiency, fuel saver and pollution control and in particular a new internal combustion engine having improved lubricating mechanism for getting extra time to bum the fuel without knock ... | 11/04/2003 |
| 6578539 | Surface layer forming a cylinder barrel surface, a spraying powder suitable therefor and a method of creating such a surface layer A surface layer for forming a cylinder barrel wall of a combustion engine block is proposed. The surface layer has separate phases of components that are separated from the phase of the remaining materials. The surface layer is produced by plasma spraying... | 06/17/2003 |
| 6546922 | Piston engine with light-alloy cylinder The invention aims to improve the seizure resistance of a piston engine with a light-alloy cylinder having a chrome-plated friction surface. To this end the friction surface of the piston is provided with a coating on the basis of artificial resin in whic... | 04/15/2003 |
| 6520133 | Reciprocating engine with rocker-arm valve control The reciprocating engine comprises a rocker valve gear, pistons which are fastened to a connecting rod and connected by crankshaft journals to a crankshaft, a balancer, and a camshaft which is driven by the crankshaft and in turn actuates rockers, the men... | 02/18/2003 |
| 6502539 | Articulated piston having a profiled skirt An articulated piston includes a crown and a separate skirt joined in articulated manner to the pin bosses of the crown by a wrist pin. The skirt has opposing thrust surfaces which contact the wall of a cylinder bore of an engine when the piston experienc... | 01/07/2003 |
| 6345599 | Piston for internal combustion engines A light metal piston for internal combustion engines which includes a bearing bushing comprising a shell wrapped from a rolled strip or band shaped metal material. The shell has a butt joint which is closed in a pressed-in state, with a preferred orientat... | 02/12/2002 |
| 6244226 | Free piston internal combustion engine with rotating piston A free piston internal combustion engine includes a housing with a combustion cylinder and a second cylinder. A piston includes a piston head reciprocally disposed within the combustion cylinder; a second head reciprocally disposed within the second cylin... | 06/12/2001 |
| 6186110 | Piston skirt oil seal The invention is directed to a piston skirt oil seal system comprising a piston with a skirt operating in a cylinder chamber between an oil sump and a combustion chamber in an internal combustion engine. A first retainer attaches to the piston skirt, and ... | 02/13/2001 |
| 6148785 | Pistons and cylinders made of carbon-carbon composite materials An improved reciprocating internal combustion engine has a plurality of engine pistons, which are fabricated from carbon--carbon composite materials, in operative association with an engine cylinder block, or an engine cylinder tube, or an engine cylinder... | 11/21/2000 |
| 6050235 | Cylinder-piston assembly The present invention pertains to mechanical engineering, and more particularly to cylinder and piston assemblies mainly intended for use in two-stroke internal combustion engines. The cylindrical surface of the piston (5) is provided with recesses (9) lo... | 04/18/2000 |
| 6050234 | Two-cycle ceramic/metallic internal combustion engine A ceramic/metallic, low polluting, long life, high performance, two-cycle gasoline engine that requires no oil lubrication. This engine eliminates the need for oil lubrication by: a) incorporating advanced ceramic materials, such as silicon nitride for cr... | 04/18/2000 |
| 6044819 | Pistons and cylinders made of carbon-carbon composite materials An improved reciprocating internal combustion engine has a plurality of engine pistons, which are fabricated from carbon-carbon composite materials, in operative association with an engine cylinder block, or an engine cylinder tube, or an engine cylinder ... | 04/04/2000 |
| 5960762 | Piston ring and cylinder liner combination An outer circumferential surface of a piston ring is covered with a physical vapor deposition film, chemical vapor deposition film or composite chromium plating film. The physical vapor deposition film or chemical vapor deposition film consists of chromiu... | 10/05/1999 |
| 5927243 | Internal combustion engine with siamesed cylinder bores and pistons A reciprocating internal combustion engine includes a siamesed piston bore having a configuration formed by the intersection of two circular cylindrical elements and a matching piston having a similar siamesed configuration. This cylinder configuration al... | 07/27/1999 |
| 5913960 | Pistons A method is described of making a piston crown, the method comprises the steps of making a lower crown portion, the lower crown portion also having piston pin bosses, making an upper crown portion which co-operates with the lower crown portion and joining... | 06/22/1999 |
| 5901772 | Method for casting pistons A ring carrier, for use in a piston casting die, is an annular-shaped member having a channel on an outer surface area. The piston casting die includes projections for engaging the channel and supporting the ring carrier within the piston casting die. At ... | 05/11/1999 |
| 5836280 | Lubrication system for two cycle engine A feature of the invention resides in a plating arrangement for a piston that reciprocates within a cylinder. The piston includes a generally cylindrical piston body. The piston body includes a piston head with a nickel plating and a piston skirt with a t... | 11/17/1998 |
