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9027517 Variable valve timing apparatus for internal combustion engine  
A variable valve timing apparatus includes: a variable valve timing mechanism that changes a valve timing and locks the valve timing at a most retarded timing; an oil control valve that controls a...
8997703 Internal combustion engine, with a system for variable actuation of the intake valves provided with improved solenoid valves, and solenoid valve for this engine  
An internal combustion engine for motor-vehicles, includes a system for variable actuation of the intake valves of the engine having a solenoid valve controllable between a closed condition and an...
8991347 Starting device of spark-ignition multi-cylinder engine  
A starting device of a spark-ignition multi-cylinder engine is provided. The device includes a multi-cylinder engine body having cylinders, fuel injection valves, ignition plugs, an intake valve...
8985073 Oil supply apparatus for internal combustion engine  
An oil supply apparatus includes an oil pump that is driven by an internal combustion engine; a supply passage that is connected to a discharge side of the oil pump; a lubricant passage that leads...
8985074 Sensing and control of a variable valve actuation system  
A system for controlling variable valve actuation in an automobile engine is disclosed. A first cam has a first lift profile and a second cam has a second lift profile, both profiles having a base...
8978604 Variable valve actuator  
The present invention discloses an actuator, which is a combination of a hydraulic control unit and a spring-mass mechanical unit, comprising: a housing, with upper and lower ports; an actuation...
8973541 Pressure pulse generator  
A pressure pulse generator includes a cylinder (2), a body (9) connected to the cylinder (2), a first channel (15) extending from the cylinder (2) to a pressure sink LP, a pressure fluid circuit...
8973540 Variable valve system  
A variable valve system, may include a variable valve apparatus that controls opening/closing timing of an exhaust valve and an intake valve of an engine, and an oil supply device that supplies...
8955477 Camshaft adjuster for an internal combustion engine  
A camshaft adjuster which has a control valve and at least one pressure-controlled positioning valve which is connected to a pair of control chambers. The control chambers each have an early...
8936006 Combined engine braking and positive power engine lost motion valve actuation system  
A system for actuating one or more engine valves for positive power operation and engine braking operation is disclosed. In a preferred embodiment, an exhaust valve bridge and intake valve bridge...
8931443 Variable displacement solenoid control  
Methods are provided for improved control of valve activation/deactivation mechanisms. One example method comprises, adjusting an electromechanical actuator to actuate cylinder valve...
8925502 Hydraulically actuated valve assembly for an engine  
An internal combustion engine has at least two exhaust ports and a valve assembly. The valve assembly has first and second connectors, first and second actuator pistons connected to their...
8930109 Vehicle having speed control unit  
A tractor is disclosed as a four-wheel drive vehicle with a movable seat back, with a seat height adjustment and with a varying load capability.
8910600 Pressure storage unit for a camshaft and piston for a pressure storage unit  
A pressure storage unit (2) for a camshaft, having an integrated controllable pressure storage device for supporting hydraulic engine components, which includes a housing (4) with a piston (14)...
8899195 Electro-hydraulic variable valve lift apparatus  
An electro-hydraulic variable valve lift apparatus may include an hydraulic pump body installed in an engine, a piston provided to reciprocate within the hydraulic pump body and forming an...
8875671 Electrohydraulic device for closed-loop driving the control jack of a variable compression ratio engine  
An electrohydraulic device for controlling the compression ratio of a variable compression-ratio engine, includes at least one dual-flow electrovalve (81) with no check valve and capable of...
8869762 Fluid-pressure-operated valve timing controller  
A fluid-pressure-operated valve timing controller has a control valve that is disposed in a vane rotor and a camshaft. The control valve has a sleeve and a spool moving in an axial direction in...
8863726 Method and system for engine cylinder decompression  
A system for actuating an engine valve to decompress an engine cylinder for engine start up and/or engine braking is disclosed. The system may include a first member, such as an outer piston,...
8863706 Four-stroke cycle engine  
There are output pistons 18 for opening intake valves 11, an intake cam 19 coaxial with a crankshaft 7 to actuate an input piston 22, a hydraulic control valve 20, output passageways 25A, 25B...
8857395 Valve timing control apparatus  
A valve timing control apparatus includes a driving-side rotation member, a driven-side rotation member, a fluid chamber, an advanced angle chamber and a retarded angle chamber, a fluid control...
8857391 Controller for variable valve actuation device  
A controller for a variable valve actuation device is provided. The controller prevents the startability of an internal combustion engine from being degraded. An electronic controller (91)...
8844480 Internal-combustion engine having a system for variable actuation of the intake valves, provided with three-way solenoid valves  
An internal-combustion engine with two intake valves for each cylinder is provided with a system for variable actuation of the intake valves, comprising a single solenoid valve for each cylinder...
8839750 System and method for controlling hydraulic pressure in electro-hydraulic valve actuation systems  
A control system for an engine includes a first lift control module and a second lift control module. The first lift control module increases lift of M valves of the engine to a predetermined...
8833318 Device for the variable adjusting of the control timing of gas exchange valves of an internal combustion engine  
A device (11) for the variable adjusting of the control timing of gas exchange valves (9, 10) of an internal combustion engine (1) with a drive element (13), an output element (14), at least one...
8813696 Electro-hydraulic valve train  
An electro-hydraulic valve train is configured to change valve lift and valve opening/closing timing according to operation state of an engine. The electro-hydraulic valve train includes a valve...
8807101 Variable valve lift apparatus  
A variable valve lift apparatus may include an outer tappet body of which a latching portion connecting hole and an outer tappet body guide hole may be formed therewithin, an inner tappet body of...
8794213 Internal combustion engine including valve deactivation mechanism  
An internal combustion engine which includes a valve deactivation mechanism for reducing an output power shock upon changing of the cylinder number. In an internal combustion engine which includes...
8776749 Desmodromic hydraulic valve train  
The mass production of the MultiAir/UniAir of Fiat/INA proves that the hydraulic control can reliably actuate the valves of the modern internal combustion engines, making them greener. Removing...
8770160 Engine for small vehicle  
There is provided an engine for a small vehicle where driven sprockets, around which a cam chain for transmitting power from a crankshaft is wound, are provided at one end of camshafts that form a...
8763574 Device for variably adjusting the control times of gas exchange valves of an internal combustion device  
A device (11) for variably adjusting the control times of gas exchange vales (9, 10) of an internal combustion engine (1) having a hydraulic phase adjustment device (12) and at least one volume...
8752514 Hydraulic valve for an oscillating motor adjuster  
The invention relates to a hydraulic valve for an oscillating motor adjuster that utilizes camshaft alternating torques by means of non-return valves for more rapid adjustment. The non-return...
8733308 Hydraulically actuated camshaft adjusting device  
A camshaft adjusting device (1) including at least two hydraulic chamber (A, B) disposed between a stator (3) and a rotor (4) and separated by a vane (5) and supplied with pressure oil from a...
8733304 Engine with hydraulic variable valve timing  
In one example, a method is described for an engine with a hydraulically actuated phaser for adjusting cam timing. The phaser is controlled by a hydraulic spool valve, for example, having a...
8733303 Method for controlling a valve control system with variable valve lift of an internal combustion engine by operating a compensation in response to the deviation of the characteristics of a working fluid with respect to nominal conditions  
A method controls a valve-control system for variable-lift actuation of the valves of an internal-combustion engine, in which the valve-control system includes, for each cylinder of the engine, a...
8726860 Electrohydraulic valve controller  
An electrohydraulic valve controller for variable actuation of a gas exchange valve of an internal combustion engine. The electrohydraulic valve controller has a first hydraulic valve and, for the...
8707916 Lost-motion variable valve actuation system with valve deactivation  
Devices and related methods are disclosed that generally involve the selective deactivation of one or more engine valves. In one embodiment, a split-cycle internal combustion engine is provided in...
8701607 System and method for engine valve lift strategy  
A system for controlling a valve in an engine is provided. The system includes a pump piston operably coupled to the valve. The valve is displaceable with electro-hydraulic variable valve...
8695551 Hydraulic lash adjuster including band of radial recirculation openings  
A hydraulic lash adjuster includes a body defining an axial bore and having an open end and a closed end. A hollow piston is telescopically received within the axial bore and defines a fluid...
8695550 Valve timing controller  
A first housing has a first concave portion that opposes to a vane rotor, and the first concave portion has an inside diameter larger than an inside diameter of a first through hole of the first...
8689746 Device for the variable adjustment of valve lift curves of gas exchange valves of an internal combustion engine  
A device for the variable adjustment of valve lift curves of gas exchange valves of an internal combustion engine, which has a hydraulic consumer, a camshaft and a volume accumulator. The camshaft...
8677956 Control valve for a device for variably adjusting the control times of gas-exchange valves of an internal combustion engine  
A control valve for a device for variably adjusting the control times of gas-exchange valves of an internal combustion engine. The control valve has a substantially hollow cylindrical valve...
8677965 Valve timing control device of internal combustion engine  
A valve timing control device comprises a drive rotation member driven by a crankshaft of an internal combustion engine; a driven rotation member fixed to a camshaft that actuates engine valves to...
8667940 Engine assembly including valvetrain lubrication system  
An engine assembly includes an engine block, a cylinder head coupled to the engine block and first and second lubrication systems. The first lubrication system includes a first pump in...
8662033 Modular engine assembly and fluid control assembly for hydraulically-actuated mechanism  
An engine assembly may include a cylinder head and a fluid control assembly. The cylinder head may include first and second walls opposite one another and extending from a base region defining a...
8662034 Multi-cylinder internal combustion engine with a system for variable actuation of the intake valves subdivided into separate sub-units  
An engine comprises a system for variable actuation of the intake valves and is subdivided into a plurality of sub-systems independent with respect to each other, carried by a plurality of...
8662035 Oil pressure control system for switchable valve train components  
An oil control valve is disposed in fluid communication between an oil supply gallery and an oil control gallery of an oil control system. The oil control valve has a first position that prevents...
8656873 Oil control valve assembly for engine cam switching  
An oil control valve assembly for an engine is provided that has a control valve with a valve body, and a manifold that defines a control passage in fluid communication with a valve lift switching...
8656872 Variable lift hydraulic valve train  
The variable lift hydraulic valve train works in conjunction with a master piston to provide a variable lift of a hydraulically operated valve by adjusting the hydraulic pressure created by the...
8657044 Pneumatic hybrid internal combustion engine on the basis of fixed camshafts  
The present disclosure relates to an pneumatic hybrid internal combustion engine with at least one combustion chamber composed of a cylinder in which a piston is arranged mechanically...
8646425 Valve mechanism for an internal combustion engine  
A valve mechanism is disclosed for a cylinder of an internal combustion engine which comprises two gas exchange poppet valves mounted in a cylinder head, a bridge 122 acting on the two valves, a...