Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8186316 | Opposite radial rotary-piston engine of choronski-modification A two-stroke opposite radial rotary-piston engine is proposed, comprising a block including sleeves, pairs of pistons disposed within the sleeves and oppositely movable, a power takeoff shaft, two parallel positioned rotors mounted thereon having an inner surface fo... | 05/29/2012 |
| 8151747 | Crescent-shaped recess in piston of a split-cycle engine The present invention generally relates to a recess in the top of a piston. More particularly, the present invention relates to a crescent-shaped recess in the top of an expansion piston of a split-cycle engine. ... | 04/10/2012 |
| 8091520 | Split-cycle engine with early crossover compression valve opening A split-cycle engine includes a crankshaft. A compression piston is received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke during a single rot... | 01/10/2012 |
| 8091521 | Self-supercharging engine with freewheeling mechanism The invention is directed to a novel self-supercharging internal combustion engine with two pairs of three pistons and cylinders. A self-supercharging internal combustion engine comprising: (a) a first piston and cylinder with intake and exhaust valves, the piston b... | 01/10/2012 |
| 8051811 | Knock resistant split-cycle engine An engine has a rotatable crankshaft. A compression piston is received within a compression cylinder and operatively connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke during a single rotation ... | 11/08/2011 |
| 8006656 | Split-cycle four-stroke engine An engine has a crankshaft, rotating about a crankshaft axis of the engine. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through an expansion stroke and ... | 08/30/2011 |
| 7950358 | Eight-stroke engine with coordination pressure management system The present invention provides a coordination pressure management system for raising the maximum operational range of the eight-stroke engine; said coordination pressure management system includes a real-time control system for adjusting the phase-difference between... | 05/31/2011 |
| 7832368 | Opposite radial rotary-piston engine of Choronski A two-stroke opposite radial rotary-piston engine is proposed, comprising a block including sleeves, pairs of pistons disposed within the sleeves and oppositely movable, guiding bearings, a power takeoff shaft, rotors mounted thereon having an inner surface formed b... | 11/16/2010 |
| 7823547 | System and method for split-cycle engine waste heat recovery A waste heat recovery system for a split-cycle engine includes a heat exchange unit. An air compressor device is in communication with the heat exchange unit. A waste heat input receives waste heat from the engine and is in fluid communication with the heat exchange... | 11/02/2010 |
| 7810459 | Split-cycle four-stroke engine An engine has a crankshaft, rotating about a crankshaft axis of the engine. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through an expansion stroke and ... | 10/12/2010 |
| 7637234 | Split-cycle engine with a helical crossover passage An engine has a crankshaft. A compression piston within a compression cylinder is connected to the crankshaft such that the compression piston reciprocates through an intake stroke and a compression stroke. An expansion piston within an expansion cylinder is connect... | 12/29/2009 |
| 7628126 | Split four stroke engine An engine includes a crankshaft, rotating about a crankshaft axis of the engine. A power piston is received within a first cylinder and operatively connected to the crankshaft such that the power piston reciprocates through a power stroke and an exhaust stroke durin... | 12/08/2009 |
| 7588001 | Split-cycle four-stroke engine An engine has a crankshaft, rotating about a crankshaft axis of the engine. An expansion piston is slidably received within an expansion cylinder and operatively connected to the crankshaft such that the expansion piston reciprocates through an expansion stroke and ... | 09/15/2009 |
| 7571699 | System and method for split-cycle engine waste heat recovery A waste heat recovery system for a split-cycle engine includes a heat exchange unit. An air compressor device is in communication with the heat exchange unit. A waste heat input receives waste heat from the engine and is in fluid communication with the heat exchange... | 08/11/2009 |
| 7552703 | Internal combustion engine and method Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression chamber, a variable outlet valve for controlling communication between the c... | 06/30/2009 |
| 7487748 | Internal combustion engine and method Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression chamber, a variable outlet valve for controlling communication between the c... | 02/10/2009 |
| 7481189 | Internal combustion engine and method Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression chamber, a variable outlet valve for controlling communication between the c... | 01/27/2009 |
| 7481190 | Split-cycle engine with disc valve A split-cycle engine with disc valve includes a crankshaft, a power cylinder and a compression cylinder. A gas crossover passage interconnects the compression cylinder and the power cylinder. An air intake port circumscribes a periphery of the compression cylinder a... | 01/27/2009 |
| 7451727 | Internal combustion engine and method for the operation thereof An engine comprises a working cylinder provided with a piston, a preignition chamber provided with a spark plug and a combustion chamber which are connected to a compressor cylinder by channels. The compressor cylinder is provided with fuel and air supplying channel... | 11/18/2008 |
| 7448349 | Internal combustion engine and method Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression chamber, a variable outlet valve for controlling communication between the c... | 11/11/2008 |
| 7434551 | Constant temperature internal combustion engine and method Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression chamber, a variable outlet valve for controlling communication between the c... | 10/14/2008 |
| 7424871 | Internal combustion engine and method Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression chamber, a variable outlet valve for controlling communication between the c... | 09/16/2008 |
| 7418929 | Internal combustion engine and method Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression chamber, a variable outlet valve for controlling communication between the c... | 09/02/2008 |
| 7415948 | Internal combustion engine and method Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression chamber, a variable outlet valve for controlling communication between the c... | 08/26/2008 |
| 7415947 | Internal combustion engine and method Internal combustion engine and method with compression and expansion chambers of variable volume, a combustion chamber, a variable intake valve for controlling air intake to the compression chamber, a variable outlet valve for controlling communication between the c... | 08/26/2008 |
| 7389755 | Tandem-piston engine The piston rod of the tandem-piston engine was modified to include a crosshead that slides in a crosshead guide machined into the lower part of the charger piston for better lateral support. The lower surface of the motor piston was changed to a simple conical surfa... | 06/24/2008 |
| 7383798 | Highly efficient two-stroke double compression combustion engine This invention relates to the field of diesel engines operating on two-stroke cycles. This invention further relates to said diesel engines having piston compressors. Our invention has disclosed a double compression diesel engine featuring outstanding compres... | 06/10/2008 |
| 7369935 | Soft-computing method for establishing the heat dissipation law in a diesel common rail engine A soft-computing method for establishing the dissipation law of the heat in a diesel Common Rail engine, in particular for establishing the dissipation mean speed (HRR) of the heat, includes the following steps: choosing a number o... | 05/06/2008 |
| 7331315 | Two-stroke engine with fuel injection A two-stroke internal combustion engine is provided with a fuel injector. The two-stroke internal combustion engine may have at least one transfer passage, an air channel, and a fuel injector. The transfer passage is between a crankcase and a combustion chamber of t... | 02/19/2008 |
| 7273023 | Steam enhanced double piston cycle engine A steam enhanced dual piston cycle engine utilizes a unique dual piston apparatus that includes: a first cylinder housing a first piston therein, wherein the first piston performs only intake and compression strokes; a second cylinder housing an inner power piston t... | 09/25/2007 |
| 7270110 | Four stroke internal combustion engine with inlet air compression chamber A four-stroke engine with intake air compression chamber. The intake air compression chamber has a pressure responsive displaceable member therein to compress inlet air passively in response to differential pressure between a sealed crankcase and air in the inlet si... | 09/18/2007 |
| 7240480 | Dual Combustion Mode Engine An internal combustion engine is disclosed in which at least one cylinder is adapted to run in homogeneous-charge compression-ignition (HCCI) combustion mode and at least one cylinder is adapted to run in spark-ignition (SI) combustion mode with the HCCI cylinder ha... | 07/10/2007 |
| 7219630 | Internal combustion engine with regenerator, hot air ignition, and naturally aspirated engine control An internal combustion engine and method is disclosed wherein separate compression and power cylinders are used and a regenerator or pair of regenerators is mounted between them to provide heat for hot-air ignition. The single regenerator embodiment operates as a tw... | 05/22/2007 |
| 7201156 | Thermal transfer internal combustion engine A thermal transfer internal combustion engine with an air transfer cylinder located between a pair of power cylinders. The transfer cylinder has an intake valve and two transfer valves alternately feeding the two power cylinders. The power cylinders each contain a m... | 04/10/2007 |
| 7198011 | Internal combustion engine There is provided a two stroke internal combustion engine comprising a cylinder and a piston. The cylinder has a cylinder head, a wall and a crankcase. The wall extends between the cylinder head and the crankcase. The cylinder head has a first opening and a second o... | 04/03/2007 |
| 7188598 | Rotary mechanical field assembly An engine having a rotary member and a linear member includes a first axis about which the rotary member rotates and a second axis coupling the rotary member to an offset rotary element. The linear member is coupled to the offset rotary element by a first coupling f... | 03/13/2007 |
| 7174881 | Actuation valve for controlling fuel injector and compression release valve, and engine using same The present invention relates to engines having multiple hydraulic devices. For instance a multi-cylinder diesel engine might include both an a fuel injector and an engine compression release brake. Traditionally, each of these hydraulic devices has been controlled ... | 02/13/2007 |
| 7159560 | Supercharged four-stroke engine combustion method and engine using such a method A combustion method for a supercharged four-stroke engine having at least four cylinders includes a combustion cycle during which a cylinder of the engine is in the exhaust phase while another cylinder is in the supercharged air intake phase with a burnt gas scaveng... | 01/09/2007 |
| 7140332 | Pneumatically actuated valve for internal combustion engines A pneumatically actuated valve assembly for use as intake and/or exhaust valves on two- or four-stroke internal combustion engines. The assembly includes a valve (100), valve housing (200), and compressed gas distribution and timing mechanisms (FIGS. | 11/28/2006 |
| 7121236 | Split-cycle engine with dwell piston motion A method for decelerating an expansion piston of an engine is presented. The engine includes an expansion piston slidably received within an expansion cylinder and operatively connected to a crankshaft such that the expansion piston reciprocates through an expansion... | 10/17/2006 |
