Patent application number | Description | Published |
20090151674 | CONTINUOUS VARIABLE VALVE LIFT APPARATUS - A valve lift may be continuously varied by an apparatus that includes: an input cam provided on an input shaft; a mediating lever that moves upwards or downwards by the input cam and is formed with an output cam; a valve unit operated by the output cam; and a control device that is coupled to the mediating lever and is capable of changing a contact point between valve unit and the output cam of the mediating lever. | 06-18-2009 |
20090151678 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus may include a camshaft in which a cam is formed co-axially thereon; a variable shaft in which a groove is formed in an exterior circumference at a portion thereof, wherein the variable shaft is disposed in parallel with the camshaft; a variable guide, one end surface of which contacts the cam and the other end surface of which is inserted inside the groove of the variable shaft; a lever through which the variable shaft is rotatably inserted and on which the variable guide is slidably mounted; and a valve that is selectively lifted by the lever, wherein the variable guide selectively is inserted into the groove of the variable shaft to vary lift amount of the valve in accordance with rotation of the variable shaft. | 06-18-2009 |
20090272346 | CONTINUOUS VARIABLE VALVE LIFT APPARATUS - A continuously variable valve lift apparatus may include an input unit, a camshaft for receiving rotation from the input unit, wherein one end portion of the camshaft is slidably coupled to the input unit in a longitudinal direction of the camshaft, a controlling unit for controlling a relative position of the camshaft in the longitudinal direction of the camshaft, a slanted cam disposed to the camshaft and a cross-section of which is slanted with a predetermined angle with respect to a longitudinal axis of the camshaft, a mediating unit slanted with substantially the same angle of the slanted cam and pivoting in response to rotation of the slanted cam, and a valve opening unit that is opened/closed in response to the pivoting motion of the mediating unit. | 11-05-2009 |
20120132161 | 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 other end of the swing arm, a hydraulic lash adjuster of which an oil supply hole and an oil exhaust hole thereto, and selectively supporting the swing arm according to oil supplying thereto or oil exhausting therefrom, a check valve selectively opening the oil exhaust hole and a control portion controlling the check valve for the check valve to selectively open the oil exhaust hole. | 05-31-2012 |
20120138031 | PCV VALVE - A PCV valve includes a cover of which an inlet is formed thereto, a body connected to the cover to form a hydraulic path therein and the body of which an outlet is formed thereto, a valve body including a valve head and disposed within the hydraulic path for the valve head to selectively block the inlet and an elastic portion which contacts the valve head and elastically supports the valve body within the hydraulic path, wherein a valve head gas groove is formed to a surface of the valve head that contacts the elastic portion. | 06-07-2012 |
20120145118 | VENTILATION HEAD COVER OF ENGINE - A ventilation head cover of an engine may include a head cover main body having a blow-by exhaust portion, a baffle plate disposed in the head cover main body with a predetermined distance from the head cover main body to form a gas passage with the blow-by exhaust portion, and an oil inflow prevention wall formed to an end portion of the baffle plate and engaged with the head cover main body, wherein the oil inflow prevention wall includes at least a gas passage hole to form the gas passage. | 06-14-2012 |