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US20130032110 SEALING COLLAR  
A sealing collar is provided on a body in which the body has a cylindrical wall on which a hole emerges and a fluid situated in the body is able to escape through the hole. The sealing collar...
US20140190431 CUSTOM VVA ROCKER ARMS FOR LEFT HAND AND RIGHT HAND ORIENTATIONS  
A modified rocker assembly having an offset end is designed to be used in engine heads having an obstruction that would not allow a switching rocker arm to be used. The modified rocker assembly is...
US20110023801 INTERNAL COMBUSTION ENGINE WITH VARIABLE-LIFT ELECTROHYDRAULIC VALVE ACTUATION  
An internal combustion engine with a bottom camshaft (1) and an electrohydraulic variable-lift valve actuation of a modular construction type is provided. The hydraulic unit (6) is assembled...
US20120079999 VARIABLE VALVE LIFT APPARATUS  
A variable valve lift apparatus including an inner tappet, an outer tappet surrounding and slidably contacting the inner tappet, and a latching pin slidably inserted into the inner tappet so as to...
US20140299083 VALVE TRAIN SYSTEM FOR PROVIDING CONTINUOUSLY VARIABLE VALVE LIFT  
A valve train system includes a camshaft with a camshaft lobe that is rotatable about a camshaft axis. A control shaft is rotatable about a control shaft axis and includes an eccentric control...
US20120048223 ROCKER ARM APPARATUS FOR ENGINE CYLINDER DEACTIVATION  
The present invention provides to a rocker arm apparatus for cylinder deactivation with a new structure for increasing fuel efficiency in a gasoline engine. For this, the present invention...
US20110017158 Engine Valve System With Variable Lift and Duration  
An improvement is disclosed for an engine valve system with variable lift and duration of the type that includes two cams mounted coaxially, a summation rocker coupled to cam followers in contact...
US20130312681 ROCKER ASSEMBLY HAVING IMPROVED DURABILITY  
A durable system is disclosed for controlling variable valve actuation of an engine valve corresponding to a cylinder of an automobile engine. The system is designed to have a durability that...
US20120174885 Varying The Phase And Lift Of A Rocker Arm On A Camshaft Actuating A Valve Or Injector  
In an internal combustion engine using poppet type valves, a center pivot rocker arm is moved through a specific path wherein the roller in contact with a cam is moved to alter the phasing of the...
US20080183370 Intake air control system for internal combustion engine  
An intake air control system for an internal combustion engine having at least one intake valve and a valve operating characteristic varying mechanism which continuously varies a lift amount of...
US20110107990 ENGINE HAVING CONCENTRIC CAMSHAFT WITH DIFFERENTIAL VALVE LIFT  
A camshaft assembly may include a first shaft, a second shaft, a first lobe and a second lobe. The second shaft may be coaxial with and rotatable relative to the first shaft. The first lobe may be...
US20090288622 CONTINUOUS VARIABLE VALVE LIFT DEVICE  
The CVVL device includes a rocking cam having a rolling face contacting a rocker arm is formed to press the rocker arm when pivoted, a rocking roller, which is disposed above the drive cam and...
US20090095241 CAM FOLLOWER FOR THE VARIABLE ACTUATION OF A GAS-EXCHANGE VALVE OF AN INTERNAL COMBUSTION ENGINE  
The cam follower has a roller, which is movable, between a first axial position and a second axial position and which alternately transmits elevations, which are different from one another. The...
US20110132302 ROCKER ARM CHANGEOVER DEVICE FOR ENGINE  
A rocker arm changeover device for an engine includes a major rocker arm to drive intake or exhaust valves. A driven rocker arm is arranged in line with the major rocker arm. A changeover pin is...
US20080173266 VARIABLE VALVE DRIVE SYSTEM FOR ENGINE  
A valve drive device for an engine include a valve for opening or closing an opening of a port to a combustion chamber, a valve drive member for opening or closing the valve and a drive shaft for...
US20100294222 VARIABLE VALVE ACTUATING MECHANISM WITH LIFT DEACTIVATION  
An internal combustion engine is described having a valve mechanism that comprises two cams (120,122) mounted coaxially and a summation lever (124) having cam followers (126, 127) in contact with...
US20150114330 VARIABLE VALVE DEVICE THAT VARIES LIFT AMOUNT OF VALVE  
A variable valve device for varying a lift amount of a valve includes a first valve and a second valve that are respectively disposed to open or close a port, a swing arm in which first and second...
US20150211394 SENSING AND CONTROL OF A VARIABLE VALVE ACTUATION SYSTEM  
A system for controlling variable valve actuation in an automobile engine. A first cam has a first lift profile and a second cam has a second lift profile. A rocker arm assembly engages the cams...
US20090277408 Variable valve operating device and valve opening amount adjustment method  
The present invention relates to a variable valve operating device and a valve opening amount adjustment method, and can accurately control the amount of in-cylinder air and the strength of a...
US20050274341 Rocker arm system for engine valve actuation  
Systems and methods for actuating engine valves are disclosed. The systems may include primary and auxiliary rocker arms disposed adjacent to each other on a rocker arm shaft. A rocker arm...
US20110094465 TWO-STEP VALVE LIFTER CONTROL SYSTEMS AND METHODS  
A valve lifter control system includes a valve lifter control module and a forced transition determination module. The valve lifter control module determines a desired lift state of a valve lifter...
US20100095918 LIFT-CONTROL DEVICE FOR A POPPET VALVE OF AN INTERNAL-COMBUSTION ENGINE OR OPERATING MACHINE  
A lift-control device for a poppet valve of an internal-combustion engine including a first valve-lift means, a second valve-lift means, and a means for selective de-activation of the second...
US20080141960 Variable valve actuation system having a crank-based actuation transmission  
A variable valve actuation system having a crank-based eccentric transmission driven by an electric motor to control valve lift, duration, and phasing in the cylinder head of an internal...
US20070113813 Two-step rocker arm having roller element cam followers  
The invention provides a two-step rocker arm assembly for use in an internal combustion engine in which a plurality of two-step rocker arm assemblies enable the engine poppet valves to switch...
US20070074687 Variable valve lift control system for a combustion engine with underneath camshaft  
In order to produce a variable valve lift control system for a combustion engine with underneath camshaft for the adjustment of a valve lift and an opening time of at least one inlet valve and/or...
US20090173297 Variable valve timing device  
The present invention provides a variable valve timing device for an internal combustion engine having a double camshaft. A gas exchange valve control shaft is provided which has first and second...
US20100077979 Internal combustion engine having a variable valve control system, and method of using same  
An internal combustion engine includes a variable valve control system which is operable to switch actions of an engine valve by slidably moving a rocker arm in the axial direction of a rocker-arm...
US20070163243 Exhaust system with cam-operated valve assembly and associated method  
An exhaust system for use with an engine comprises at least one valve and a camshaft. The at least one valve is configured to control flow in the exhaust system but is discrete from each intake...
US20090151675 CONTINUOUS VARIABLE VALVE LIFT APPARATUS  
A lift of a valve of an engine may continuously be varied by an apparatus that includes: an input cam provided on an input shaft; a pivot shaft provided in parallel with the input shaft; a lever...
US20080190390 LIFT AMOUNT ADJUSTING DEVICE IN LIFT-VARIABLE VALVE-OPERATING MECHANISM  
In a lift amount adjusting device in a valve-operating mechanism which changes at least a lift amount, a rocker arm is rockably arranged in a driving-force transmitting path for transmitting a...
US20100024753 Variable valve mechanism  
The present invention provides a variable valve mechanism which includes a camshaft having a drive cam, a rocker shaft provided parallel to the camshaft, and a variable mechanism that is provided...
US20050235934 Variable mechanical valve timing mechanism having an adjusting device  
A variable mechanical valve timing mechanism for adjusting the stroke of gas exchange valves in a reciprocating-piston internal combustion engine, having a plurality of cams (5) which are fastened...
US20090050087 Valve Mechanism for Internal Combustion Engine  
Disclosed is a valve mechanism for an internal combustion engine that uses a motor to open/close a valve body of each cylinder. The valve mechanism includes a camshaft that is rotated by the motor...
US20080314342 DESMODROMIC VARIABLE VALVE ACTUATION  
The combination of the Fully Variable Valve Actuation or FVVA system with the Desmodromic control results in a fully functional FVVA rid of valve springs and any other kind of the restoring...
US20120132161 VARIABLE VALVE LIFT APPARATUS  
A variable valve lift apparatus includes a cam, a swing arm of which one end thereof a valve is connected to and the swing arm contacting the cam, a support portion selectively supporting the...
US20100018484 Slide Type Continuous Variable Valve Lift Device  
A slide type continuous variable valve lift (CVVL) device includes a swing arm rotating to press a valve; a cam lobe; a roller transmitting a driving force of the cam lobe to the swing arm; and a...
US20090090319 VARIABLE TAPPET  
A variable tappet includes a tappet body; a variable portion in the tappet body, configured to open and close a valve; and a control portion to maintain the variable portion in either a first...
US20120048221 VARIABLE VALVE ACTUATOR  
A variable valve actuator may include a rocker arm which may be pivotally connected to a rocker shaft, and of which a rocker arm hydraulic pressure supply line and a rocker arm hydraulic pressure...
US20080066700 VARIABLE VALVE TIMING SYSTEM AND METHOD FOR CONTROLLING THE SAME  
An actuator operation amount setting unit prepares the rotational speed command value for an electric motor such that the phase of an intake valve changes in accordance with the target phase. An...
US20070193543 VALVE DEACTIVATION DEVICE  
A valve deactivation device for a rocker arm assembly having a cam arm and a valve arm is provided. A return spring biases a locking latch pin toward an activated position to allow the cam arm and...
US20090217895 Inner arm stop for a switchable rocker arm  
A roller finger follower assembly for variably activating a valve in an internal combustion engine includes at least one vertical recessed channel formed inside an outer arm and a shaft. The...
US20070290581 Active control mount magnetic optimization for an engine  
A solenoid (10) includes a shell (12), a lower stator member (20) associated with the shell, and an upper stator member (30) in the shell. The upper stator member is separate from the lower stator...
US20090126661 VARIABLE VALVE LIFT APPARATUS  
A variable valve lift apparatus includes a lift body that contacts a cam and a valve. The lift body has a first hole for receiving hydraulic pressure and a second hole for exhausting the hydraulic...
US20100077974 CONTINUOUSLY VARIABLE VALVE LIFT DEVICE AND OPERATION LOGIC THEREOF  
A continuously variable valve lift device may include a vibration link having one end eccentrically and rotatably coupled to a rotation shaft, a rocker arm having a middle portion pivotally...
US20070277779 System for exhaust valve actuation  
A variable valve actuation system is disclosed for providing exhaust to at least one component downstream of an engine. The system includes an exhaust valve disposed in an engine cylinder and a...
US20130255611 VARIABLE VALVE GEAR FOR INTERNAL COMBUSTION ENGINE  
A variable valve gear for an internal combustion engine that is capable of being disposed in a small compact manner and also capable of reducing the generation of a knocking sound. In a variable...
US20150240671 VARIABLE VALVE DEVICE FOR INTERNAL COMBUSTION ENGINE  
Provided is a variable valve device for an internal combustion engine, capable of improving engine characteristics by increasing the maximum valve lift of an intake valve to a large valve lift...
US20090229549 VARIABLE VALVE MECHANISM FOR ENGINE  
A variable valve mechanism for an engine includes: a rocker shaft; a first rocker arm rotatably supported by the rocker shaft, for transmitting displacement of a first cam to a valve; a second...
US20100083923 VALVE OPERATING DEVICE FOR INTERNAL COMBUSTION ENGINE  
A valve operating device (100) opens and closes a valve (2) of an internal combustion engine by driving a valve stem axially. A rocker cam (10) that rocks about a drive shaft (21) in...
US20070266971 Variable Valve Lift Device for the Lift Adjustment of Gas-Exchange Valves of an Interanal Combustion Engine  
In order to produce a variable valve lift device for the lift adjustment of the gas-exchange valves of an internal combustion engine, by means of which with adjustment forces and holding forces,...

Matches 1 - 50 out of 314 1 2 3 4 5 6 7 >