Variable valve lift apparatus
AssigneesHyundai Motor Company, Kia Motors Corporation
InventorsSung Bong PARK, Bosung Shin
Life of this patent
Estimating the term…
Abstract
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.
Claims19
A variable valve lift apparatus, comprising:
- 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.
A variable valve lift apparatus, comprising:
- a camshaft including a cam co-axially formed therein;
- a variable shaft disposed in parallel with the camshaft and including a first groove formed at an exterior circumference thereof and a lift control member formed in the first groove;
- a lever including an output cam and a second groove, wherein the variable shaft is rotatably inserted through the lever;
- a variable guide including a contact profile and a lift profile, wherein the contact profile contacts the cam and one end portion of the variable guide is slidably inserted into the second groove of the lever and mounted to the first groove of the variable shaft through the second groove;
- and
- a valve that is selectively lifted by the output cam of the lever and thus lift amount of the valve is varied in accordance with rotation of the variable shaft.
Dependencies are inferred from the claim text.