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6394053 Valve train for high speed direct injection diesel engine  
A valve train for a small size diesel engine includes a pair of camshafts rotatively supported by and passing over a top of a cylinder head, one pair of intake and exhaust cams on each camshaft for...
6394050 Actuator piston assembly for a rocker arm system  
The present invention is directed to an actuator piston assembly for use in a rocker arm system. The actuator piston assembly is capable of actuating at least one engine valve during for example...
6386159 Valve timing system  
A variable valve timing system applicable for varying the opening and closing cycle of the inlet and outlet valves of an internal combustion engine. The system comprises a cam follower and a cam...
6386163 Valve system for an engine  
A valve system for an engine including a valve resting mechanism provided between an engine valve and a valve lifter supported by a cylinder head. The valve resting mechanism can place the engine...
6386161 Cam link variable valve mechanism  
A variable valve mechanism includes an elongate input shaft having a central axis. An opening cam lobe and a closing cam lobe are disposed upon the input shaft. The opening cam lobe and the closing...
6386162 Variable valve drive for load control of a positive ignition internal combustion engine  
A fully variable valve drive ( 10 ) for throttle-free load control of an internal combustion engine is proposed. It is particularly characteristic of the invention, that a transmission component (...
6386156 Transitions among operating modes in an engine with a hybrid valvetrain  
A method for controlling intake valves in an internal combustion with intake valves operated by more than one type of actuation device includes steps to accomplish smooth transitions among intake...
6386160 Valve control apparatus with reset  
A valve control apparatus is provided for an internal combustion engine having a valve and a camshaft. The camshaft has an axis of rotation, a first raised portion and a second raised portion...
6382149 Valve timing system for an internal combustion engine  
A valve timing gear of an internal-combustion engine is provided, in the case of which a camshaft acts by a timing cam upon a valve by way of a tappet whose cam-side contact path can be changed by...
6382152 Crank gear variable valve actuating mechanism  
A variable valve actuating mechanism includes a rocker having a central rocker axis that is substantially parallel with and spaced apart from a central axis of a rotary input shaft. A frame member...
6382150 Desmodromic oscillating cam actuator with hydraulic lash adjuster  
A valve actuating mechanism includes opening and closing rotary cams rotatable together about a primary axis and a rocker pivotable about a first pivot axis spaced from the primary axis. The rocker...
6382151 Ring gear variable valve train device  
A ring gear variable valve train device is provided for installation on an internal combustion engine having a rotary input crankshaft provided with a cylindrical eccentric journal having a center...
6382153 Partial internal guide for curved helical compression spring  
A variable valve actuating comprising a spring guide for use with a curved spring includes an elongate, curved guide member having a centerline. The centerline has a centerline curvature that is...
6378474 Variable value timing mechanism with crank drive  
A crank driven VVT mechanism includes single or dual cranks for actuating oscillating cam drive mechanisms. The crank drive positively actuates the mechanisms in both valve opening and valve...
6379132 Fuel pump  
A fuel pump comprising a pumping plunger reciprocable within a bore, and a drive arrangement for driving the pumping plunger. The drive arrangement includes a compressible load transmission...
6374785 Arrangement for rotary angle positioning of a camshaft relative to the crank shaft of an internal combustion engine  
This invention pertains to a vane-cell positioning device with an external rotor ( 1 ) driven by the crankshaft of an internal combustion engine and an internal rotor ( 2 ) fixed to and turning...
6371066 Torque based cam timing control method and system  
A torque based cam timing system and method for an engine having dual independent camshafts is disclosed that includes a first set of ROM based calibration tables containing values for intake valve...
6367436 Belt-driven variable valve actuating mechanism  
A belt-driven variable valve actuating mechanism includes a rocker having a central rocker axis that is substantially parallel with and spaced apart from a central axis of a rotary input shaft. A...
6360705 Mechanism for variable valve lift and cylinder deactivation  
A valve lift mechanism for an internal combustion engine is disposed on the engine cylinder head. The valve lift mechanism has a rocker arm pivotally mounted on the stem of an engine intake valve...
6357406 Variable valve actuation system  
A variable valve actuation (VVA) system ( 10/210 ) includes a camshaft ( 20 ), having a lobe ( 22 ) thereon. A valve ( 30/230 ) terminates in a stem end ( 34/234 ), and is moveable between open and...
6357405 Valve drive mechanism of four-stroke cycle engine  
An improved variable valve timing mechanism that is operative to provide an arrangement for varying both the valve lift and lift curve in response to dynamic running conditions. A variable valve...
6357404 Valve control system and method for an internal-combustion engine  
A control system is provided for an internal-combustion engine of a piston design having several cylinders. At least one camshaft actuates valves for charge cycle control in a combustion space of...
6354255 Valve actuating mechanism  
A valve actuating mechanism is disclosed which comprises a valve ( 12 ), a camshaft having a cam ( 22 ) of fixed profile associated with the valve ( 12 ), a valve lifting rocking cam ( 24 )...
6354254 Exhaust and intake rocker arm assemblies for modifying valve lift and timing during positive power  
The present invention is directed to an apparatus for operating at least one intake valve and at least one exhaust valve in an engine cylinder. The apparatus includes an exhaust valve operating...
6349688 Direct lever overhead valve system  
An overhead valve engine including a cylinder bore having an outer end; and a crankshaft assembly including a substantially straight crankshaft, a substantially cylindrical journal eccentrically...
6345597 Non-rotatable valve lifter mechanism  
A non-rotatable valve lifter mechanism for use in an internal combustion engine includes a rotatable cam shaft having at least one confinement member disposed on the cam shaft adjacent to its cam...
6343579 Decompression system for engine  
A push rod operated multi-valve V-type engine particularly adapted for use in motorcycles or like vehicles and which engine is air cooled. The engine employs a very simplified construction and...
6343581 Variable valve timing and lift structure for four cycle engine  
A variable valve timing and lift structure for a four-cycle internal combustion engine wherein a high speed and low speed cam are associated with the camshaft, each for operating the same valve....
6341585 Variable inlet valve damper for an internal combustion engine  
This invention is the addition of a variable inlet valve damper to an internal combustion engine so that it can reduce the amount of fluid sucked into the engine by allowing some of the fluid to be...
6332437 Adjusting unit for actuating a device for variable control of valves of an internal combustion engine  
An adjusting unit for actuating a device for variable control of valves of an internal combustion engine for load control of the engine via the inlet stroke function of the valves. The adjusting...
6332445 Method for operating and valve drive for a multicylinder internal combustion engine  
An engine is operated with two groups of cylinders, one of which groups is constantly powered and a second of said groups is selectively operated by cutting it in and out. The second group of...
6330869 Control device of an internal combustion engine  
A controller for an internal combustion engine has a hydraulic valve characteristic changing mechanism for changing valve operating characteristics of suction and exhaust valves; a valve system...
6325030 Roller finger follower for valve deactivation  
A roller finger follower includes an elongate body having a first side and a second side. A first end and a second end interconnect and space apart the first and second sides. The first and second...
6321705 Roller finger follower for valve deactivation  
A deactivation roller finger follower for use with an internal combustion engine includes an elongate body. The body has a valve pallet end and a socket. The pallet end is configured for engaging a...
6321706 Variable valve opening duration system  
A valve assembly having a valve (10, 110, 210, 310, 410) that is caused to reciprocate between open and closed positions by engagement of a cam follower (16, 116, 216, 316,416) with a cam (14, 114,...
6321704 Hydraulically actuated latching valve deactivation  
The invention is a valve deactivator assembly (15) for use in connection with a valve train of an internal combustion engine. In application, a pre-selected number of the engine cylinders would...
6321701 Lost motion valve actuation system  
A lost motion valve actuation system for an internal combustion engine is disclosed. The system includes a motion feedback system (100) for detecting the motion and timing of a valve actuator (130)...
6318315 Valve operating system for internal combustion engine  
In a valve operating system for an internal combustion engine, wherein connected and disconnected states of cam followers can be switched over from one to another to change the valve operating...
6318318 Rocker arm assembly  
A rocker arm assembly 207 is provided which has an extendable plunger 212. The plunger 212 has a spring 136 biased first position contacting with a lost motion arm 44. In the first position, the...
6318317 Device for interrupting the power flow between at least one valve and at least one cam of camshaft  
The invention relates to a device for interrupting the power flow between at least one valve and at least one cam of a camshaft, especially in a valve mechanism of a reciprocating internal...
6318316 Multi-cylinder engine for motorcycle  
To provide a multi-cylinder engine for a motorcycle, in which at least one of a plurality of engine valves provided in a cylinder head for each of combustion chambers corresponding to a plurality...
6318323 Tappet for a valve mechanism of an internal combustion engine  
A tappet (1) with a hydraulic clearance compensation element (7), a positive opening of a one-way valve (15) being effected during a base circle region α of the contacting cam (5) whereby a...
6314928 Rocker arm assembly  
The lost motion arm 44 has first and second contact surfaces 102 and 104. A latch mechanism is connected on the body with an extendable plunger 120 having a first contact surface 124 and a second...
6314927 Support element for a finger lever of a valve gear of an internal combustion engine  
A support element for a cam follower of a valve gear of an internal combustion engine configured so that it can be switched which allows the pressure piston to complete a movement in relation to...
6314926 Valve control apparatus  
A valve control apparatus is provided for an internal combustion engine having a valve and a camshaft. The camshaft has an axis of rotation, a first lobe and a second lobe adjacent to the first...
6311659 Desmodromic cam driven variable valve timing mechanism  
A desmodromic cam driven variable valve timing (VVT) mechanism includes dual rotary opening and closing cams for actuating a rocker mechanism that drives valve actuating oscillating cams. The dual...
6308669 Phase change coupling  
A phase change coupling is disclosed for allowing the angular position of a drive member 10 of a camshaft 12 to be varied in relation to the camshaft. The coupling is additionally provided with a...
6302069 Cam activated electrically controlled engine valve  
This invention describes an engine valve control responsive to electrical signals from a controller to open and close a valve. Power to move the valve comes from a camshaft. A disabler spring is...
6302085 Apparatus and method for detecting crank angle of engine  
A crank angle detecting apparatus of an engine is equipped with a camshaft sensor for outputting the same number of pulse signals CAM as the cylinder number at every stroke phase difference between...
6302071 Oil passage system of valve moving apparatus for internal combustion engine  
In an oil passage system of a valve moving control apparatus for an internal combustion engine having a hydraulic valve phase variable mechanism and a hydraulic valve characteristic changing...