A continuous variable valve duration apparatus may include camshaft, first and second cam portions of cam is formed thereto respectively, of which the camshaft is inserted thereto and of which relative phase angles with respect to the camshaft are variable, first and second inner brackets transmitting rotation of the camshaft to the first and second cam portions respectively, first and second slider housings of which the first and second inner brackets are rotatably inserted thereto and of which relative position with respect to the camshaft are variable, cam cap rotatably supporting the first and second cam portions respectively and of which each slider housing is slidably mounted thereto, control shaft disposed parallel to the camshaft and engaged with the first and second slider housings for selectively moving the first and second slider housings and a control portion selectively rotating the control shaft for changing positions of the inner brackets.

A cam carrier assembly includes a cylinder head having valves and a camshaft having lobes. A cam carrier has a first side coupled with the cylinder head engaging around the valves and a second side with bearing surfaces supporting the camshaft. A series of apertures extend between the first and second sides for the lobes to interface with the valves. The cam carrier is made of carbon fiber composite insulating the camshaft from the cylinder head and providing substantial weight reduction to an upper section of an associated engine.

Disclosed is a vehicle control apparatus which can execute a start-up control for improving acceleration performance at the time of starting an internal combustion engine during the running of a hybrid vehicle. When a hybrid ECU determines that a predetermined time has not yet elapsed after termination of the start-up control of the engine, and that the hybrid vehicle is in a high speed, high load condition, but not in a warming-up state, the hybrid ECU sets a value Nupest2 larger than a value Nupest1, that is usually set as a maximum value Krmx of a rise rate of an engine rotational speed.

A control method using a continuous variable valve duration apparatus may use a continuous variable valve duration apparatus including a wheel being mounted on a camshaft and having a wheel key to control duration of an intake valve of an engine, a cam device having a cam and a cam key, being adapted that the camshaft is inserted thereinto, and being disposed to can vary relative phase of the cam with respect to the camshaft, an inner bracket being connected with the wheel key and the cam key, a slider housing being adapted that the inner bracket is rotatably inserted thereinto and being disposed to can move vertically with respect to the engine, a controller varying a position of the slider housing to adjust rotation center of the inner bracket, and guide device guiding motion of the sliding housing.

A control valve for a lubricant nozzle for cooling a piston of an internal combustion engine includes at least one passage opening through which lubricant can flow, a control part which is movable in a respective movement direction and which, as a function of its position, forms an opening cross section with the passage opening for at least partially opening up or for closing off the passage opening, and an actuation part which moves the control part as a function of a pressure of the lubricant between at least one first position in the presence of a first pressure, a second position in the presence of a second pressure and a third position in the presence of a third pressure of the lubricant. The second pressure is higher than the first pressure and lower than the third pressure, wherein the opening cross section formed in the second position is larger than the opening cross sections in the first position and in the third position.

A valve for an overhead cam engine includes a valve sleeve, a valve cylinder, and a valve spring. The valve sleeve is cylindrical and has an annular shoulder and ports designed to permit flow of fuel and gases into and out of an internal combustion chamber. The valve cylinder includes a cylindrical body and a top cap. The top cap includes a contact surface to be engaged by a cam lobe and an annular projection. The valve spring is positioned about the cylindrical body and between the annular projection and the annular shoulder. The valve spring is designed to expand and move the valve cylinder partially out of the valve sleeve to unblock the ports and open the valve. The valve spring is designed to be compressed to permit the cam lobe to move the valve cylinder into the valve sleeve to block the ports and close the valve.

An improved cylinder head valve assembly design 10 that allows the valve head 16 to open and close at higher RPM's without valve float and no lash adjustments. More power is generated which can equate to better gas mileage. The design also allows for a lighter camshaft 30 enclosed in an oil compartment 62 for better cooling and less overall engine weight.