Abstract: A variable valve apparatus includes a high lift cam and a low lift cam in parallel with the high lift cam. A tappet body includes a high lift tappet body that constantly contacts the high lift cam, and a low lift tappet body that is disposed in the high lift tappet body and selectively contacts the low lift cam. An inner column is connected with a valve and reciprocally disposed within the low lift tappet body. A supporting member is disposed below the tappet body. A lost motion elastic member is disposed between the supporting member and the tappet body for supplying restoring force to the tappet body. A first connector selectively connects the high lift tappet body and the low lift tappet body. A second connector selectively connects the low lift tappet body and the inner column.

Abstract: A continuous variable valve lift apparatus includes an input cam; a control lever rotating shaft; a control lever with a contact portion, provided on the control lever rotating shaft; a control portion that controls the angle between the control lever and the control lever rotating shaft; a first link rotatably connected to the control lever rotating shaft; a second link rotatably connected to the first link, that contacts the contact portion; an output cam on the second link, to open and close a valve; and an elastic portion provided such that a connecting portion of the first link and the second link contact the input cam.

Abstract: A variable compression ratio apparatus that changes the compression ratio of an air-fuel mixture in a combustion chamber according to a driving state of an engine, enablements may include a connecting rod receiving the combustion force from the piston; a pin link receiving a part of the combustion force from the connecting rod and rotating the crankshaft; a support link disposed substantially in parallel with the connecting rod; a division link receiving a part of the combustion force from the connecting rod and transmitting the part of the combustion force to the support link; a control link provided with one end coupled to the division link in order to change position of one end of the division link; and an eccentric camshaft coupled to other end of the control link in order to change position of a rotational axis of the control link.

Abstract: 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 state, at which it can open and close the valve, and a second state, at which it cannot open and close the valve.

Abstract: A continuous variable valve lift apparatus includes an input cam disposed on an input shaft, a valve opening/closing portion, and a rocker arm rotating shaft. A rocker arm rotates around the rocker arm rotating shaft corresponding to a rotation of the input cam. An output cam is disposed at an end of the rocker arm, and opens and closes the valve opening/closing portion. A control portion controls a position of the rocker arm rotating shaft.

Abstract: A continuous variable valve lift apparatus according to an exemplary embodiment of the present invention includes a camshaft, an input cam disposed to the camshaft, a variable lever that is rotably connected to the camshaft and includes a first arm including a first connecting shaft and a second arm including a second connecting shaft, a first link rotating around the first connecting shaft corresponding to a rotation of the input cam, an output cam rotating around the camshaft, a valve opening/closing portion that is opened and closed corresponding to a rotation of the output cam, and a connecting portion that is disposed for the output cam to rotate corresponding to a rotation of the first link.