Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
September 9, 2008
Patent Application Number
11648248
Date Filed
December 29, 2006
Patent Primary Examiner
Patent abstract
A variable valve lift apparatus is provided comprising: an arm; a valve and valve springs connected to a first end of the arm for controlling an air intake and an air exhaust; a driving plunger disposed in a driving plunger groove formed on a second end of the arm which is opposite to the first end; a driving plunger portion elastic member disposed in the driving plunger groove for biasing the driving plunger; a support coupled to a cylinder head for supporting the driving plunger; a locking unit for selectively fixing the driving plunger; and a hydraulic pressure supply unit for selectively supplying hydraulic pressure to the locking unit.
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