Famous Patents
The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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 |
| 8015961 | Long time period combustion chamber system with engine applications A hot combustion chamber (CC) is designed to completely extend the combustion process over 80% to 90% of the cycle period of an internal combustion engine. The long time period combustion (LTPC) provides a large period of time for control of required fuel/air reques... | 09/13/2011 |
| 7735465 | Method for operating an internal combustion engine An internal combustion engine includes a cylinder (2) wherein a combustion chamber (5) is formed. The engine also includes devices for metering fuel and combustion air as well as an ignition device for igniting the mixture in the combustion chamber ( | 06/15/2010 |
| 7438044 | Light-weight compact diesel engine Disclosed is a diesel engine comprising a cylinder head; a combustion chamber within the cylinder head, the combustion chamber being in the shape of a bowl; and a piston having a piston crown, the piston crown having a dome-shape for protruding within the cylinder h... | 10/21/2008 |
| 7353797 | Combustion chamber for internal combustion engine A geometry for an IC combustion chamber is disclosed that increases the air-fuel mixing efficiency within the chamber. The piston head includes a squish surface portion for generating a squish jet, and a bowl portion that cooperatively with the cylinder head defines... | 04/08/2008 |
| 7325528 | Method of operating a single cylinder two-stroke engine The invention is directed to a method for operating a two-stroke engine having a cylinder in which a combustion chamber is formed and which includes devices for metering fuel and supplying combustion air as well as an ignition device for igniting a mixture in the co... | 02/05/2008 |
| 7313918 | Alternative (reciprocating) engine with recirculation of exhaust gases intended for the propulsion of automobiles and method turbocharging these motors A reciprocating engine includes a turbocharging unit that: supplies the intake manifold with air via a coolant; is supplied with gas by the exhaust manifold; and has the turbine supply pressure substantially equal to the compressor discharge pressure. At constant ai... | 01/01/2008 |
| 7270109 | Internal combustion engine Enhanced combustibility by increasing the difference in intake gas velocity between a low flow velocity region and first and second high flow velocity regions in an intake port. An intake port of an internal combustion engine has an intake flow control port portion ... | 09/18/2007 |
| 7198023 | Sequential injection lubrication system for a spherical rotary valve internal combustion engine operating on natural gas or alternative fuels A sequential injection lubrication system for a spherical rotary valve internal combustion engine operating on natural gas or alternative fuels, the lubrication system having a plurality of injectors, one for each cylinder, the injectors and communication with a lub... | 04/03/2007 |
| 7194989 | Energy efficient clean burning two-stroke internal combustion engine A precision cast engine has a piston unit and a rotor unit to translate linear thrust from the piston unit into rotary power. Each piston rod is attached to a thrust absorber carriage running on precision bearings to eliminate piston drag on the cylinder walls. One ... | 03/27/2007 |
| 7152566 | Cylinder head structure The bottom surface 18 of the cylinder head 10 is formed by an intake-side bottom surface 18a and an exhaust-side bottom surface 18b on which an intake port 13 and an exhaust port 15 are formed respectively. Fur... | 12/26/2006 |
| 6878098 | Selective governor usage for an engine Apparatuses and methods for processing a signal in a moveable vehicle having an engine. A first combustion governor receives a first control signal and transmits a first governor signal operable to control an engine speed of the engine as a function of the first con... | 04/12/2005 |
| 6468122 | Fuel injected engine with cross scavenging An engine in which the cylinders are scavenged according to a cross scavenging technique. The engine includes one or more cylinders in each of which a piston is disposed for reciprocal motion. The engine further includes a direct fuel injection system tha... | 10/22/2002 |
| 6401674 | Multi-fuel engine An engine capable of use with multiple different types of fuels including gasoline and alcohol based flues and heavy fuels such as diesel fuel, JP5, JP8, Jet A and kerosene based fuels. The engine includes a main cylinder having a compression chamber at o... | 06/11/2002 |
| 6338327 | Combustion chamber structure of in-cylinder direct fuel injection engine In an in-cylinder fuel injection two cycle engine, a combustion chamber dome and a piston cavity are provided in an offset position from a cylinder bore center axis to an exhaust port side, respectively. A spark plug is mounted in a cylinder head such tha... | 01/15/2002 |
| 6293232 | Multi-fuel engine An engine capable of use with multiple different types of fuels including gasoline and alcohol based flues and heavy fuels such as diesel fuel, JP5, JP8, Jet A and kerosene based fuels. The engine includes a main cylinder having a compression chamber at o... | 09/25/2001 |
| 6135083 | Diesel engine for vehicle A two cycle, crankcase compression, diesel engine having a high specific output. This is achieved by using an appropriately sized and located precombustion chamber into which the fuel is injected. The porting and direction of crankshaft rotation insure ag... | 10/24/2000 |
| 6055954 | Spark ignition type internal combustion engine with sub-combustion chamber A spark ignition internal combustion engine includes a sub-combustion chamber in which gas mixture with an air-fuel ratio adapted for an operating state of the engine over a wide operating range of the engine is supplied to a combustion chamber. The amoun... | 05/02/2000 |
| 5950592 | Spark ignition two-cycle internal combustion engine with sub-combustion chamber A highly efficient spark ignition two-cycle internal combustion engine is provided which assures stable and excellent combustion over a wider operation region of the engine. The spark ignition two-cycle internal combustion engine includes a sub-combustion... | 09/14/1999 |
| 5794584 | Stratified combustion chamber for a cross-scavenged, two stroke, internal combustion engine Disclosed herein is an internal combustion engine comprising a cylinder block, a cylinder, an exhaust port, an inlet port, and a cylinder head fixed to the cylinder block including a recess, a spark plug fixed in the cylinder head along an axis located in... | 08/18/1998 |
| 5769050 | Prechamber for diesel engine A number of embodiments of precombustion chamber configurations for two-cycle crankcase compression diesel engines. The precombustion chamber and its communicating throat are oriented so as to maintain a uniform fuel distribution in the precombustion cham... | 06/23/1998 |
| 5699766 | Fuel injection system for engine A two-cycle, direct injection, internal combustion engine provides improved performance by using a portion of energy produced by the production process to heat the engine. The engine includes a plurality of direct fuel injected cylinders and a fuel inject... | 12/23/1997 |
| 5692468 | Fuel-injected internal combustion engine with improved combustion An internal combustion engine comprising an engine block defining a cylinder having a longitudinal axis, an upper end, and a cross-sectional area in a plane perpendicular to the axis, a piston reciprocally moveable in the cylinder along the axis, the pist... | 12/02/1997 |
| 5570670 | Two stroke internal combustion engine A two stroke internal combustion engine has two opposed pistons (8) which reciprocate in opposite directions in cylinder (4) and define a common compression chamber (6) therebetween. Blower (10) supplies scavenging air at high pressure to compression cham... | 11/05/1996 |
| 5505172 | Process and device for a two-stroke combustion-engine A method and apparatus of a two-stroke combustion engine is provided. The invention relates to utilizing the compression of the flue gases that remain in the cylinder, and the intake of a combustible air-fuel mixture in a limited zone of the combustion ch... | 04/09/1996 |
| 5343839 | Two-stroke engine A two-stroke engine comprising two exhaust valves and two intake valves. These exhaust valves and these intake valves are arranged on the peripheral portion of the inner wall of the cylinder head, and one additional exhaust valve is arranged on the centra... | 09/06/1994 |
| 5333582 | Pre-combustion chamber gas engine This invention provides a pre-combustion chamber gas engine capable of being applied to a two-stroke gas engine using a natural gas as fuel. A gas fuel is supplied to precombustion chambers with communication ports, which allows communication between prim... | 08/02/1994 |
| 5329902 | Cylinder fuel injection type two-cycle internal combustion engine Embodiments of two-cycle crankcase compression direct injected internal combustion engines that permit good firing and effective stratification, particularly at low speed, low load conditions. The engine defines a combustion chamber having a recess with a... | 07/19/1994 |
| 5277159 | Two stroke diesel engine A piston and cylinder arrangment for an internal combustion engine designed to run on diesel and similar fuels, comprises a cylinder defining a main combustion chamber, a piston reciprocatable within said cylinder and having a thermally insulating plate o... | 01/11/1994 |
| 5230312 | Two-stroke engine A two-stroke engine comprising three exhaust valves and two intake valves. These exhaust valves and these intake valves are arranged on the peripheral portion of the inner wall of the cylinder head, and one additional intake valve is arranged on the centr... | 07/27/1993 |
| 5209200 | Controlled dispersion of injected fuel An internal combustion engine having a cylinder head at one end of the cylinder, a piston mounted for reciprocation in the cylinder, a cavity in the cylinder head, and a fuel injector nozzle located in the cavity in the cylinder head to deliver fuel into ... | 05/11/1993 |
| 5195486 | Two stroke diesel engine A two stroke diesel engine having a cavity in the cylinder head facing the combustion chamber, an intake valve and exhaust valve, a fuel injector, and a projection formed on the piston head. The intake valves and fuel injector are pointing toward the cavi... | 03/23/1993 |
| 5163395 | Two stroke diesel engine In a two stroke diesel engine which comprises a combustion chamber formed by a cylinder, piston head and base of the cylinder head, a cavity formed on the base of the cylinder head facing the combustion chamber, intake valves fitted to the cylinder head f... | 11/17/1992 |
| 5125380 | Two-stroke diesel engine A two-stroke diesel engine comprising a pair of intake valves arranged on one side of the inner wall of the cylinder head, and a pair of exhaust valves arranged on the other side of the inner wall of the cylinder head. The valve openings of the intake val... | 06/30/1992 |
| 5115775 | Internal combustion engine with multiple combustion chambers An internal combustion engine having two separate main combustion chambers isolated from the cylinder and from each other by means of a valve throttle mechanism. Combustion occurs first in one chamber, and then in the other, separated by one complete revo... | 05/26/1992 |
| 5085189 | Air-assisted fuel injection applied in the two-stroke engine of flame-jet ignition type An air-assisted fuel injection applied in the two-stroke engine of flame-jet ignition type which a fuel pump and fuel pressure regulator valve establish stable fuel rail pressure. With respect to each cylinder, a pair of fuel injection electromagnetic val... | 02/04/1992 |
| 5080060 | Prechamber combustion system with forced injection for two-stroke gasoline engine The present invention relates to a fuel injection system driven by compressor. The system is used in two-stroke gasoline engine, wherein high speed air flow is applied to assist in fuel atomization and injection. The system works in such a manner that a f... | 01/14/1992 |
| 5042441 | Low emission combustion system for internal combustion engines A combustion system for internal combustion engines having a cylinder, at least one piston reciprocal in the cylinder and a combustion chamber with three regions for improving the combustion process, the piston having a piston head with an outer perimeter... | 08/27/1991 |
| 5014663 | Two-stroke internal combustion engine and cylinder head for the latter A two-stroke internal combustion engine, in particular of the diesel type, which comprises at least one intake valve (10) having its seat disposed in the wall of a combustion and scavenging prechamber (13) and at least one exhaust valve (7), is characteri... | 05/14/1991 |
| 4962736 | Diesel engine A combustion chamber and method of operating a diesel engine to insure maximum air utilization. The engine has a main chamber and a subchamber that communicates with the main chamber through a communication passageway. Fuel injection into the subchamber i... | 10/16/1990 |
| 4940029 | Turbocompounded two-stroke piston engines The cylinder head (401) of a turbocompounded 2-stroke piston engine incorporates, for each cylinder (400), an indirect combustion chamber (402) which is connected to the cylinder clearance volume (413) by a passage (412). The indirect combustion chamber (... | 07/10/1990 |
