Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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 |
| 8161938 | Method for operating an internal combustion engine with variable valve control In a method for operating an internal combustion engine (10) having a plurality of combustion chambers (12), wherein the combustion chambers (12) make moment contributions during operation of the internal combustion engine (10) to the res... | 04/24/2012 |
| 7740003 | Valvetrain control systems for internal combustion engines with different intake and exhaust leading modes A valve control system for an internal combustion engine includes a valve actuation system. The valve actuation system actuates at least one of an intake valve and an exhaust valve between N open lift modes via lift control valves. The control module enables transit... | 06/22/2010 |
| 7726277 | Engine idle warm-up of a homogeneous charge compression ignition engine A homogeneous charge compression ignition engine is fueled within a warm-up region of engine temperatures using a minimally defined fuel mass schedule and injection timings and simple interpolative techniques. ... | 06/01/2010 |
| 7690350 | Method and device for controlling an internal combustion engine with variable valve lift and motor vehicle equipped therewith A method for controlling an internal combustion engine with variable valve lift has the following steps: Determining the pressure in the intake manifold; predetermining the pressure in the intake manifold following a changeover of the valve lift; determining a selec... | 04/06/2010 |
| 7484497 | Control device for an internal combustion engine Provided is a control device for an internal combustion engine, including a crank angle sensor, a cam angle sensor, a real phase angle detector for detecting a real phase angle of a cam shaft based on a detection signal of the sensors, a target phase angle setting u... | 02/03/2009 |
| 7481199 | Start control apparatus of internal combustion engine A start control apparatus for an internal combustion engine includes first and second control mechanisms which are individually arranged to vary at least one of a compression ratio and an expansion ratio of a cylinder of the internal combustion engine. The start con... | 01/27/2009 |
| 7441538 | Method for auto-ignition operation and computer storage device for use with an internal combustion engine An internal combustion engine that can be operated in compression ignition mode, comprising a fuel injector (2) for each cylinder; a fuel injection control unit (4) for controlling fuel injection quantity and a piston (5) in each cylinder whose ... | 10/28/2008 |
| 7438046 | Failure detection apparatus for variable valve timing and lift control system of internal combustion engine A failure detection apparatus for preventing erroneous detection due to a degradation of a sensor and thereby accurately performing failure detection of a variable valve timing and lift control system is provided. The detection apparatus detects a failure of a varia... | 10/21/2008 |
| 7434553 | Variable valve mechanism for engine In a variable valve mechanism, a control shaft is associated with an advance oil passage such that the same passage is closed by the control shaft when a maximum valve lift amount of an intake valve is equal to or larger than a reference lift amount. The control sha... | 10/14/2008 |
| 7424872 | Failure diagnostic apparatus for variable valve mechanism of internal combustion engine and failure diagnostic method for variable valve mechanism A failure diagnosis for a slide sensor of a variable valve mechanism is performed when a valve working angle is at a value in the initial state. The initial state is set to a valve characteristic state where the valve working angle is at the maximum value. The maxim... | 09/16/2008 |
| 7424882 | Engine method A method for controlling an engine airflow, the engine having at least one cylinder, the engine also having an intake manifold and an outlet control device for controlling flow from the intake manifold into the cylinder, comprising of generating a desired engine tor... | 09/16/2008 |
| 7415966 | Engine An engine includes an in-cylinder injector injecting fuel into a cylinder, a port injector injecting fuel into an intake manifold, and a valve-opening-characteristic changing mechanism changing at least lift or opening duration of an intake valve. When the engine is... | 08/26/2008 |
| 7398749 | Method and device for controlling an internal combustion engine The invention relates to a method and device for controlling an internal combustion engine comprising an inlet pipe leading to a cylinder input where a gas input valve is placed. Said engine also comprises a drive for the gas input valve which makes it possible to a... | 07/15/2008 |
| 7398772 | Control apparatus for multi-cylinder internal combustion engine and control method A control apparatus calculates a exhaust gas air-fuel ratio of a plurality of cylinders, in which the operation angle of an intake valve is set to a predetermined operation angle, e.g., a maximum operation angle, based on a value output from an air-fuel ratio sensor... | 07/15/2008 |
| 7383820 | Electromechanical valve timing during a start A system and method to control engine valve timing to during the start of an internal combustion engine. Electromechanical valves are controlled in a manner to reduce hydrocarbon emissions during the start of an internal combustion engine. The method controls intake... | 06/10/2008 |
| 7383119 | Method for controlling valves during the stop of an engine having a variable event valvetrain A method for controlling valves during an engine stop is presented. The valves are controlled in a manner that can quiet the engine during a stop. In addition, the valves may be selectively controlled to direct the contents of the cylinder in a desired direction so ... | 06/03/2008 |
| 7379809 | Control system A control system which is capable of enhancing both the stability and the accuracy of control when the output of a controlled object is feedback-controlled by a plurality of control inputs. An ECU 2 of a control system 1 controls engine speed NE during... | 05/27/2008 |
| 7353106 | Method for reducing power consumption and emissions for an internal combustion engine having a variable event valvetrain A method for controlling stopping and starting of an engine having a variable event valvetrain is described. According to the method engine valves may be used to reduce engine evaporative emissions as well as engine starting emissions. ... | 04/01/2008 |
| 7347179 | Method for operating an internal combustion engine In a method for operating an internal combustion engine in which the angular locations where the fuel/air mix combustions takes place can be controlled by an adjustment of the inlet and outlet valve timing, the timing of at least one of the intake and exhaust valve ... | 03/25/2008 |
| 7278383 | Internal combustion engine with variable compression ratio and valve characteristics When controlling the valve characteristics of an intake valve and changing the compression ratio, an upper variation limit compression ratio, which is the upper limit of the variation of compression ratio, is determined according to the actual valve characteristics ... | 10/09/2007 |
| 7258090 | Intake air amount control apparatus for internal combustion engine An intake air amount control apparatus is mounted on a vehicle having an automatic transmission 30 that switches the shifting pattern for the gear ratio between two modes. The intake air amount control apparatus controls the intake air amount by cooperation o... | 08/21/2007 |
| 7228827 | Control method for vehicle having an engine A method for controlling an engine having both an electronically controlled inlet device, such as an electronic throttle unite, and an electronically controlled outlet device, such as a variable cam timing system is disclosed. The method of the present invention ach... | 06/12/2007 |
| 7222593 | Adjusting device for a camshaft An adjusting device for the rotational position of the camshaft of a reciprocating piston engine relative to the crankshaft, has an actuator for adjusting the rotational position that is connected into a control circuit. The control circuit has a controller, which i... | 05/29/2007 |
| 7213569 | Valve characteristic estimation device and controller for internal combustion engine A valve characteristic estimation device applied to an internal combustion engine provided with a valve characteristic adjustment mechanism for varying a valve characteristic including at least one of a valve open period and a lift amount of an intake valve. The est... | 05/08/2007 |
| 7198031 | Control device of internal combustion engine An engine ECU executes a program including the steps of: selecting a map for a warm state or a map for a cold state based on an engine coolant temperature after an engine is started and rapid catalyst warm-up ends; calculating DI ratio r; calculating when to inject ... | 04/03/2007 |
| 7184879 | Method for controlling valves during the stop of an engine having a variable event valvetrain A method for controlling valves during an engine stop is presented. The valves are controlled in a manner that can quiet the engine during a stop. In addition, the valves may be selectively controlled to direct the contents of the cylinder in a desired direction so ... | 02/27/2007 |
| 7174880 | Method for operation of an internal combustion engine An internal combustion engine has an air intake tract which comprises at least one inlet pipe leading to one intake duct per cylinder of the internal combustion engine. It also has at least one exhaust gas duct per cylinder of the internal combustion engine, at leas... | 02/13/2007 |
| 7174252 | Method for reducing power consumption and emissions for an internal combustion engine having a variable event valvetrain A method for controlling stopping and starting of an engine having a variable event valvetrain is described. According to the method engine valves may be used to reduce engine evaporative emissions as well as engine starting emissions. ... | 02/06/2007 |
| 7167792 | Method for stopping and starting an internal combustion engine having a variable event valvetrain A method for controlling stopping and starting of an engine having a variable event valvetrain is described. According to the method engine valves may be used to reduce engine evaporative emissions as well as engine starting emissions. ... | 01/23/2007 |
| 7159547 | Control apparatus for multi-cylinder internal combustion engine and control method A control apparatus calculates a exhaust gas air-fuel ratio of a plurality of cylinders, in which the operation angle of an intake valve is set to a predetermined operation angle, e.g., a maximum operation angle, based on a value output from an air-fuel ratio sensor... | 01/09/2007 |
| 7140334 | Valve train for internal combustion engine A valve train for an internal combustion engine including a plurality of cylinders having different valve mechanism constructions, in which the valve train has a correcting member for correcting a difference in valve lift amount that is produced between the pluralit... | 11/28/2006 |
| 7107140 | Internal combustion engine control apparatus An internal combustion engine control apparatus basically comprises a reference intake air quantity calculating section, a maximum intake air quantity calculating section and an engine control section. The reference intake air quantity calculating section is configu... | 09/12/2006 |
| 7073493 | Control apparatus for multi-cylinder internal combustion engine and control method A control apparatus calculates a exhaust gas air-fuel ratio of a plurality of cylinders, in which the operation angle of an intake valve is set to a predetermined operation angle, e.g., a maximum operation angle, based on a value output from an air-fuel ratio sensor... | 07/11/2006 |
| 7047924 | Method for diagnosing the operational state of a two-step variable valve lift device A method for diagnosing an operational state of a variable valve lift (VVL) device in an engine, wherein the VVL device is capable of operating in two modes of operation. The method includes measuring a rotational speed of an engine crankshaft while the engine is ru... | 05/23/2006 |
| 7032550 | Inter-cylinder variation detection device and inter-bank variation detection device of internal combustion engine An inter-bank variation detection device of an internal combustion engine provided with a valve opening characteristic setting means (57) for changing the valve opening characteristic of an intake valve (9) for each of the cylinders (#1 to #4) or each ... | 04/25/2006 |
| 6997161 | Control apparatus and control method for internal combustion engine A control apparatus for controlling an internal combustion engine includes a flow rate sensor that detects an intake air flow rate that represents a flow rate of air admitted into a combustion chamber of the internal combustion engine, a pressure sensor that detects... | 02/14/2006 |
| 6920851 | Variable valve control apparatus for internal combustion engine and method thereof In an internal combustion engine provided with a variable valve mechanism that varies a lift amount of an intake valve, when a target lift amount of the intake valve is a predetermined value or less, the target lift amount of the intake valve is limited to the prede... | 07/26/2005 |
| 6871632 | Method for regulating the fuel injection of an internal combustion engine A method is described for regulating the fuel injection of an internal combustion engine, to which combustion air is fed through an intake tract, in which two final control elements which are connected in series in the intake tract and in each case control the air m... | 03/29/2005 |
| 6863050 | Apparatus and method for controlling intake air amount of internal combustion engine In an internal combustion engine provided with a variable valve mechanism that varies at least a valve operating characteristic (valve lift amount and the like) of an intake valve, a target intake air amount equivalent to a target torque is set based on operating co... | 03/08/2005 |
| 6651624 | Method and device for quickly modifying the torque of an internal combustion engine A method and a device for modifying a torque of an internal combustion engine including at least one first cylinder with an exhaust valve including a variable valve control, in which it is determined whether there is a demand for modifying the torque with... | 11/25/2003 |
