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| Number | Title | Issue Date |
| 7472679 | Valve control device and valve control method for internal combustion engine An intake throttle valve is located in an intake passage upstream of first and second intake ports, such that intake air flows into mainly the first intake port to generate a swirl flow when an opening degree of the intake throttle valve is not larger than a predete... | 01/06/2009 |
| 7380537 | Control apparatus for vehicle In a vehicle incorporating an internal combustion engine having in-cylinder injectors and intake manifold injectors and performing engine intermittent operation control, at the end of vehicle operation, the fuel pressure is decreased in both a high-pressure delivery... | 06/03/2008 |
| 7347181 | Direct injection spark ignition engine A direct injection spark ignition engine comprises a cylinder, a piston, a fuel injector arranged at one side of a center axis of the cylinder for directly injecting fuel into the combustion chamber, and a smoothly continuous lowered recess formed on a top surface o... | 03/25/2008 |
| 7347178 | System and method for controlling auto-ignition A method for operating an engine of a vehicle, the engine having a cylinder with at least a first and second valve, the method comprising during a first mode, operating with the first valve active and the second valve deactivated during a cycle of the cylinder, wher... | 03/25/2008 |
| 7334564 | Throttle and inlet valves for 8 stroke and 4 stroke engines A ‘Blackburn Cycle’ or 8 stroke and 4 stroke cycle change piston engine has a separate fuel/air inlet duct and valve in a cylinder where the throttle means admits a small volume, namely less than 10% of the cylinder capacity, needed for a low idling speed. A sep... | 02/26/2008 |
| 7334572 | System and method for securing fuel injectors A system and method for securing a fuel injector in an internal combustion engine include a clamp for securing adjacent injectors to a cylinder head. The clamp includes a central portion with a hole for receiving a fastener to secure the clamp to the cylinder head, ... | 02/26/2008 |
| 7318427 | Method for operating an internal combustion engine In a method of operating a reciprocating-piston internal combustion engine with a combustion chamber in which a fuel mix with fresh gas is provided via intake ports and combustion exhaust gases are discharged through exhaust ports which can be opened by intake valve... | 01/15/2008 |
| 7275515 | Control device for internal combustion engine An in-cylinder injector injects fuel to be sprayed in the form of an inverted letter V sandwiching a spark plug, as seen in a top view, and in a sector as seen in a side view. The sprayed fuel interferes with an intake valve assuming an open position. An engine ECU ... | 10/02/2007 |
| 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 |
| 7258104 | Method and apparatus for controlling operation of dual mode HCCI engines An intake and exhaust system for a dual mode HCCI engine, which provides superior intake temperature control and homogeneity for engine operation in SI and HCCI modes, as well as during transition between SI and HCCI modes and vice-versa. The system includes adjuste... | 08/21/2007 |
| 7249585 | Swirl system intake manifold for an internal combustion engine An intake manifold with a swirl system for an internal combustion engine having a number of cylinders; the intake manifold has, for each cylinder, an intake conduit connecting the intake manifold to the cylinder and in turn having two parallel channels; the swirl sy... | 07/31/2007 |
| 7249587 | Air-intake device of engine for leisure vehicle and engine An air-intake device of an engine for a leisure vehicle, in which at least two air-intake passages are arranged within an engine body of the engine, is disclosed, including an air-intake pipe through which fresh air is supplied to the at least two air-intake passage... | 07/31/2007 |
| 7246609 | Internal combustion engine having cylinder disablement A multi-cylinder internal combustion engine having an exhaust system with an exhaust emission after-treatment device for exhaust gases from the cylinders, an air supply system for supplying fresh air to the cylinders, a fuel supply system for supplying fuel to each ... | 07/24/2007 |
| 7213566 | Engine system and method of control A method of operating an engine having a hotter and colder airstreams separately controlled to a cylinder is provided. The method controls valve timing during a transition in operating modes to provide improved operation. ... | 05/08/2007 |
| 7198026 | Divider plate for an inlet port, sand core for forming an inlet port, and cylinder head A divider plate for two or more inlet ports provided in a cylinder head of an internal-combustion engine comprises divider portions that divides inside of the two or more inlet ports along an intake air flow, a side cast-in insert portion provided on at least one si... | 04/03/2007 |
| 7195000 | Fuel injector designed to optimize pattern of fuel spray A fuel injector for an internal combustion engine which has a spray hole designed geometrically to produce a spray of fuel so that substantially 70% or more of an amount of the spray hits a preselected area of a head of an intake valve of the engine when the intake ... | 03/27/2007 |
| 7188589 | Direct injection internal combustion engine In a direct injection internal combustion engine, a fuel injection valve and a spark plug of adjacent cylinders are inclined at different angles from each other in directions perpendicular to a cylinder arrangement direction in which the cylinders are arranged. Besi... | 03/13/2007 |
| 7152590 | Superstructure of engine With regard to a construction that a fan 41 is provided at one side of an engine 1 and covered by a fan casing 45, and an air cleaner 30 is arranged near the fan casing 45 and at a side of a cylinder head 5 on which an intak... | 12/26/2006 |
| 7150267 | Intake port structure for internal combustion engine An intake port structure includes a collector passageway disposed in an upstream section and the first and second branching passageways disposed in a downstream section that branch from the collector passageway. The intake port structure further includes an intake a... | 12/19/2006 |
| 7128062 | Method for mid load operation of auto-ignition combustion A method is disclosed for expanding the mid load range of a four-stroke gasoline direct-injection controlled auto-ignition combustion engine. The engine includes at least one cylinder containing a piston reciprocably connected with a crank and defining a variable vo... | 10/31/2006 |
| 7082928 | Method for adjusting the duration of fuel injection through an injection valve A method for adjusting the duration of fuel injection through an injection valve is performed according to the temperature of the injected fuel. When in an operational mode, fuel is injected by the injection valve into a combustion chamber and non-injected fuel is d... | 08/01/2006 |
| 7080613 | Method for auto-ignition combustion control A method is disclosed for controlling the air-fuel ratio in a four-stroke gasoline direct-injection controlled auto-ignition combustion. The engine is operated with two sequential pairs of expansion and contraction strokes during two revolutions of the engine crank,... | 07/25/2006 |
| 7055502 | Single cylinder engine and vehicle provided with the same A single cylinder engine includes an engine body having a cylinder and a combustion chamber, an intake opening that faces the combustion chamber, and an intake passage in communication with the combustion chamber through the intake opening, a piston provided in the ... | 06/06/2006 |
| 7028650 | Electromechanical valve operating conditions by control method A system and method to control engine valve timing of an internal combustion engine. Electromechanical valves are controlled in a manner to increase fuel economy. Further, the method can adjust valve operation to regulate valve temperature. ... | 04/18/2006 |
| 6976468 | Direct injection gasoline engine In a center injection type of direct engine, since it has an ignition plug and an injector arranged in proximity, there occurs the problem that a sprayed liquid fuel directly strikes the ignition plug and causes the plug to misfire. A notch is to be provided at a po... | 12/20/2005 |
| 6928978 | In-cylinder direct-injection engine and cylinder head When an inner wall of a cylinder head is viewed along an axis of a cylinder, a line that passes through a center of a fuel injection port and a center of a valve opening adjacent to the injection port is defined as a first line, and a line that is perpendicular to t... | 08/16/2005 |
| 6918372 | Intake system of internal combustion engine An internal combustion engine includes an intake port leading to an engine cylinder. The intake port is divided into first and second passage section by a partition extending in the intake port in a longitudinal direction of the intake port. A gas motion control val... | 07/19/2005 |
| 6904891 | Intake system of internal combustion engine An internal combustion engine includes an intake port leading to an engine cylinder. The intake port is divided into first and second passage section by a partition extending in the intake port in a longitudinal direction of the intake port. A gas motion control val... | 06/14/2005 |
| 6863046 | Internal combustion engine comprising at least two inlet valves per cylinder An internal combustion engine includes at least two intake valves per cylinder, and at least two intake ports leading to the intake valves, a first intake port preferably being configured as unthrottled tangential passage and the flow through a second intake port be... | 03/08/2005 |
| 6860252 | Internal combustion engines A novel combustion chamber configuration locates the stems of all four of its valves in a parallel with the axis of the engine cylinder closed by the chamber. In this variation which is especially well suited for a barrel-stratified mode of engine operation, the spa... | 03/01/2005 |
| 6799551 | Direct injection type internal combustion engine A state of combustion in a combustion chamber is controlled by stratifying an intake gas charge within the combustion chamber, so as to reduce amounts of harmful substances left in exhaust gas. A direct-injection type internal combustion engine in which a fuel is in... | 10/05/2004 |
| 6732706 | Cylinder injection type internal combustion engine, control method for internal combustion engine, and fuel injection valve There is provided a cylinder injection type internal combustion engine capable of performing stratified charge operation at the time of a vehicle speed of 120 km/h and/or an engine rotational speed of 3200 rpm to enhance the fuel efficiency and/or to observe the emi... | 05/11/2004 |
| 6708667 | Combustion chamber structure of in-cylinder fuel injection type engine A combustion chamber arrangement for a direct fuel injected internal combustion engine wherein the combustion chamber is formed in part by a recess in the piston head. Fuel is injected into the combustion chamber so as to be introduced on one side of the recess with... | 03/23/2004 |
| 6705275 | Incylinder direct injection spark ignition engine A direct fuel injection engine includes a fuel injector so positioned and oriented as to produce a fuel spray whose upper segment reaches the vicinity of a spark plug by a penetrating force of the fuel spray in a low engine speed light load operating region to achie... | 03/16/2004 |
| 6691672 | Direct-injection internal combustion engine with controlled valves The invention concerns a direct injection internal combustion engine comprising a camshaft and at least two cylinders (1), having in each cylinder a mobile piston (2) associated with at least to intake valves (4, 5), each located in an induction pipes (8,... | 02/17/2004 |
| 6666186 | Spark ignited internal combustion engine with at least one cylinder The invention relates to a spark ignited internal combustion engine with at least one cylinder that accommodates a reciprocating piston, with a cylinder head that receives at least one ignition device per cylinder and in which are formed one exhaust and t... | 12/23/2003 |
| 6659075 | Cylinder injection engine and method of combusting engine A direct injection engine capable of direct injection of fuel into a combustion chamber characterized in that discharge of gas containing hazardous gas component such as HC can be reduced and fuel economy can be improved by stratified charge combustion in... | 12/09/2003 |
| 6651614 | Method of operating a diesel internal combustion engine In a method of operating a diesel internal combustion engine, wherein a homogeneous mixture is formed in the combustion space before a spontaneous ignition by means of fuel injected directly into separately supplied combustion air, which combustion air is... | 11/25/2003 |
| 6622687 | Intake apparatus of multi-cylinder internal combustion engine An intake apparatus of a multi-cylinder internal combustion engine wherein intake ports communicating with cylinders located at opposite longitudinal ends of a cylinder head are arranged so as to be inclined in a direction toward the longitudinal center o... | 09/23/2003 |
| 6615789 | Piston for internal combustion engines A piston for an internal combustion engine, including a piston crown having a central axis, and a piston bowl disposed in the piston crown, on which two tumble flows of air are provided. The piston bowl has a generally V-shaped contour in section taken al... | 09/09/2003 |
