Abstract: A piston and injector system designed to minimize thermal loading on the cylinder head of an internal combustion engine. The piston features a profiled upper surface that defines an annular piston bowl with a primary bowl configuration and an asymmetric bowl sector. The asymmetric bowl sector is configured to receive the fuel spray from the injector, directing combustion to reduce heat concentration on certain areas of the cylinder head. This design helps prevent overheating, thereby enhancing engine durability and performance.

Abstract: A piston and injector system designed to minimize thermal loading on the cylinder head of an internal combustion engine. The piston features a profiled upper surface that defines an annular piston bowl with a primary bowl configuration and an asymmetric bowl sector. The asymmetric bowl sector is configured to receive the fuel spray from the injector, directing combustion to reduce heat concentration on certain areas of the cylinder head. This design helps prevent overheating, thereby enhancing engine durability and performance.

Abstract: In order to pay for a product, when a user places an order for a target product, a user terminal: receives, from a set-top box having obtained order information of the target product, a message for calling a target application installed in the user terminal; executes the target application on the basis of the calling; receives order details related to the order from a card company server; receives target card information for a payment from the user; and transmits the target card information to the card company server, and when the target card information is approved by the card company server, the payment for the target product is made.

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.

Abstract: A tappet apparatus cooperates with a valve and a cam. The apparatus includes a case to reciprocate motion of the cam; and a locking unit in the ease, movable between an activated position at which the valve reciprocates motion of the case, and a deactivated position at which the valve is stationary regardless of the motion of the case. The locking unit may include first and second passages in the case; a pin, movable between a first and a second position within the first passage; and a column in the second passage. The pin may be situated in the column when the pin is in the second position. The activated position may be defined by the pin being in the first position, and the deactivated position may be defined by the pin being in the second position.

Abstract: A tappet apparatus cooperates with a valve and a cam. The apparatus includes a case to reciprocate motion of the cam; and a locking unit in the ease, movable between an activated position at which the valve reciprocates motion of the case, and a deactivated position at which the valve is stationary regardless of the motion of the case. The locking unit may include first and second passages in the case; a pin, movable between a first and a second position within the first passage; and a column in the second passage. The pin may be situated in the column when the pin is in the second position. The activated position may be defined by the pin being in the first position, and the deactivated position may be defined by the pin being in the second position.

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.