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| Number | Title | Issue Date |
| 8161936 | Internal combustion engine having a motor brake assembly An internal combustion engine includes an exhaust valve for removing exhaust gas from a combustion chamber and an engine braking device with a hydraulic valve control unit by which the exhaust valve can be held in an intermediate open position when the engine brakin... | 04/24/2012 |
| 8156921 | Valve opening arrangement and method A valve opening arrangement includes a first contact surface on a first member, and a second contact surface on a second member discrete from the first member. A first and a second opening are provided, and a first and a second valve movable to open and close the fi... | 04/17/2012 |
| 8151763 | Bias system for dedicated engine braking rocker arm in a lost motion system A lost motion valve actuation system includes an engine brake housing and one or more hydraulic fluid supply passages extending through the housing. Master and slave pistons are slidably disposed corresponding bores in the housing. The master and slave pistons are u... | 04/10/2012 |
| 8146566 | Compression release engine brake unit A compression release engine brake unit includes an oil outlet passage formed in a socket brake, which stores engine brake oil, and a reset member opening or closing the outlet passage. The reset member discharges the engine brake oil by opening the oil outlet passa... | 04/03/2012 |
| 8096281 | Diesel engine having a system for variable control of the intake valves and internal exhaust-gas recirculation A supercharged diesel engine is equipped with an electronically controlled hydraulic system for variable actuation of the intake valves of the engine. The cam that controls each intake valve has an additional lobe for causing an additional opening of the intake valv... | 01/17/2012 |
| 8087396 | Universal energy-saving system for multiple working conditions A universal energy-saving system for multiple working conditions includes an electronic control unit and an actuator. The electronic control unit is adapted to sample, process running information of a vehicle and an instruction of a driver, control on and off of a f... | 01/03/2012 |
| 8079344 | Device for generating compressed air for a vehicle and method for operating a device for generating compressed air A prime mover is provided for a vehicle having a plurality of cylinder chambers, a manifold, and engine brake valves by which the cylinder chambers can be connected to the manifold. A valve or nozzle is disposed on the manifold, by which the manifold can be connecte... | 12/20/2011 |
| 8065987 | Integrated engine brake with mechanical linkage Apparatus and method are disclosed for converting an internal combustion engine from a normal engine operation (20) to an engine braking operation (10). The engine includes exhaust valve train components comprising at least one exhaust valve (300 | 11/29/2011 |
| 8056533 | Gas exchange valve actuating device In a gas exchange valve actuating device for transmitting a drive movement to at least one gas exchange valve of an internal combustion engine which includes a braking unit having at least one actuator, the gas exchange valve actuating device is provided with a lock... | 11/15/2011 |
| 8051831 | Control device for variable valve timing apparatus A control device for a variable valve timing apparatus that changes valve timing of at least one of an intake valve and an exhaust valve of an internal combustion engine includes an actual valve timing computing unit and a valve timing controlling unit. The actual v... | 11/08/2011 |
| 8042513 | Internal combustion engine camshaft scheduling strategy for maximum pumping loss reduction A method of camshaft scheduling is disclosed which includes measuring a driver input; calculating a driver requested torque based on a measured driver input; and scheduling the camshaft based upon the driver requested torque. In one example, the driver input is an a... | 10/25/2011 |
| 7992540 | Decompression braking device in endothermic engines A decompression braking device in an endothermic engine (1) is provided of the type comprising a lever axle (2) on which a plurality of eccentric bushings (31) of a corresponding plurality of levers (3) provided with tappets (4) ar... | 08/09/2011 |
| 7984705 | Engine braking apparatus with two-level pressure control valves Apparatus and method are disclosed for converting an internal combustion engine from a normal engine operation (20) to an engine braking (or retarding) operation (10). The apparatus has an actuation means (100) containing two braking pistons ( | 07/26/2011 |
| 7971569 | Bias system for dedicated engine braking rocker arm in a lost motion system A lost motion valve actuation system includes an engine brake housing and one or more hydraulic fluid supply passages extending through the housing. Master and slave pistons are slidably disposed corresponding bores in the housing. The master and slave pistons are u... | 07/05/2011 |
| 7958864 | Compression ignition engines and methods Compression ignition engines and methods of the type wherein the engines operate with one cylinder used as a compression cylinder and a second cylinder used as a combustion cylinder. The engines have all cylinders configured so as to be able to operate as a compress... | 06/14/2011 |
| 7946269 | Method and device for increasing the engine brake power of a reciprocating piston internal combustion engine of a vehicle, particularly of a diesel engine A method for increasing an engine brake power of an internal combustion engine, particularly of a diesel engine, having at least one cylinder with a reciprocating piston, at least one inlet valve and one outlet valve, and a turbocharger, in which air is compressed b... | 05/24/2011 |
| 7909015 | Apparatus and method for engine braking Apparatus and method are disclosed for converting an internal combustion engine from a normal engine operation (20) to an engine braking (or retarding) operation (10). The engine has an exhaust valve train containing two exhaust valves (300), a ... | 03/22/2011 |
| 7909016 | Valve timing control apparatus for internal combustion engine A valve timing control apparatus for an internal combustion engine includes a variable valve timing mechanism. The valve timing control apparatus sets target valve timing based on an operational state of the engine. The valve timing control apparatus detects actual ... | 03/22/2011 |
| 7909017 | Engine braking apparatus with mechanical linkage and lash adjustment Apparatus for modifying engine valve lift to produce an engine valve event in an internal combustion engine, the engine including at least one exhaust valve and an exhaust valve lifter for cyclically opening and closing the at least one exhaust valve, includes (a) a... | 03/22/2011 |
| 7870843 | Torque control system with scavenging An engine control system includes a scavenging module that generates a scavenging signal when both a driver torque request is greater than a predetermined torque threshold and a rotational speed of an engine crankshaft is less than a predetermined speed threshold. A... | 01/18/2011 |
| 7827958 | Gas exchange valve actuating device In a gas exchange valve actuating device having a lever for transmitting a drive movement to at least one gas exchange valve of an engine braking control unit of an internal combustion engine, the internal combustion engine includes a compact braking control unit wh... | 11/09/2010 |
| 7823559 | Internal combustion engine In an internal combustion engine including a camshaft for operating inlet and outlet valves of the engine with lift curves EV, AV of the inlet and the outlet valves determined by the shape of cams of the camshaft, an additional auxiliary cam which acts on the outlet... | 11/02/2010 |
| 7810468 | Controller and control system for internal combustion engine A requested injection time InjT that is necessary for a fuel injector to inject a fuel per one combustion cycle is computed in response to variables of an accelerator manipulated by a driver. An injectable time InjMax per one combustion cycle is computed on the basi... | 10/12/2010 |
| 7789065 | Engine braking apparatus with mechanical linkage and lash adjustment An apparatus for modifying engine valve lift to produce an engine valve event in an internal combustion engine comprises actuation device for operating at least one exhaust valve, and control device for moving the actuation device between its inoperative position an... | 09/07/2010 |
| 7712449 | Lost motion variable valve actuation system for engine braking and early exhaust opening A method and system for actuating an internal combustion engine exhaust valve to provide compression release actuation during an engine braking mode of engine operation and early exhaust valve opening actuation during a positive power mode of engine operation is dis... | 05/11/2010 |
| 7610897 | Valvetrain control systems for internal combustion engines with time and event based control A valve control system includes a vehicle control module that generates a lift mode command signal to transition one of intake and exhaust valves between N open lift modes. A time module generates a response time signal that indicates a duration of the transition an... | 11/03/2009 |
| 7591244 | Control method for the intake and exhaust valves of an engine and internal combustion engine comprising such valves This method is for controlling the intake and exhaust valves of the cylinders of an internal combustion engine which is capable of operating either in four-stroke positive mode or in two-stroke braking mode. The control means pilot the valves so that at least a firs... | 09/22/2009 |
| 7581527 | Internal combustion engine provided with a valve opening variation system and vehicle equipped with such engine The present invention is relative to an internal combustion engine equipped with a plurality of combustion chambers such to allow the variation of the opening of the valves of said chambers by means of an actuator. The engine according to the invention comprises a c... | 09/01/2009 |
| 7568465 | Engine retarder having multiple modes The present disclosure is directed to a method of retarding an engine. The method includes selectively retarding the engine in a first mode configured to produce a first level of retarding at a first intensity of noise by selectively opening at least one exhaust val... | 08/04/2009 |
| 7565896 | Method for variable valve actuation to provide positive power and engine braking A control method for transitioning from positive power to engine braking (and vice-versa) is disclosed. This transition may be made using variable valve actuation and two-stroke braking. The process may involve three engine operation modes: positive power (i.e., fir... | 07/28/2009 |
| 7520262 | Integrated type engine brake for diesel engine An integrated type engine brake for a diesel engine includes: a cam cap; a valve integral with the cam cap, the valve including an oil inlet and an oil outlet; and a rocker shaft with a brake oil passage in fluid communication with the oil inlet and the oil outlet. ... | 04/21/2009 |
| 7500466 | Variable valve actuation and engine braking Systems and methods of actuating two engine valves associated with a common engine cylinder using one or more lost motion systems and one or more control valves are disclosed. The control valves are capable of selectively trapping hydraulic fluid in the lost motion ... | 03/10/2009 |
| 7469676 | Method and device for determining a phase of an internal combustion engine The invention concerns a method and a device for determining an internal combustion engine phase. Said device comprises an intake zone, an exhaust zone, at least one camshaft which acts on the gas exchanging valves and whereof the phase can be adjusted relative to t... | 12/30/2008 |
| 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 |
| 7434398 | Method for braking with an internal combustion engine having a variable turbo unit Method for controlling the braking effect during engine braking in an internal combustion engine (10) having an exhaust turbocharger unit (16) with adjustable guide blades for controlling the turbine speed and gas flow. The method includes detection of... | 10/14/2008 |
| 7409943 | Engine braking method for a supercharged internal combustion engine In an engine braking method for a supercharged internal combustion engine, wherein combustion air, which is under boost pressure and is supplied to the cylinders under the control of engine inlet and outlet valves, is compressed in the cylinders and is subsequently ... | 08/12/2008 |
| 7392786 | Internal combustion engine shut-down for engine having adjustable valves A method for operating an engine in a vehicle, the engine having at least a cylinder, the method comprising generating engine braking torque to stop rotation of the engine in a desired range by opening and closing at least an electrically actuated valve of the cylin... | 07/01/2008 |
| 7370630 | Engine with a plurality of operating modes including operation by compressed air The present invention relates (with reference to FIG. 1) to an internal combustion engine in which a combustion chamber (12) can be connected to a reservoir (16) for storing compressed air. Gas flow control valve means (15) controls flow ... | 05/13/2008 |
| 7363890 | Method and device for operating an internal combustion engine A method and a device for operating an internal combustion engine improve the response of the internal combustion engine and increase its torque. An exhaust valve of the combustion chamber of the internal combustion engine is opened during a discharge phase of the i... | 04/29/2008 |
| 7347171 | Engine valve actuator providing Miller cycle benefits An engine valve actuator providing Miller cycle benefits and a method of operating an engine valve actuator are disclosed. The valve actuator employs a first force to hold an exhaust valve of the engine open during an exhaust stroke and a second, stronger force to h... | 03/25/2008 |
