Patent ID: 7328675
Filing Date: 2008-02-12
Classification: F01L,Y10T

Abstract:
1. A finger lever for a valve drive of a combustion engine, which can be switched to different lifts for at least one gas-exchange valve, comprising an outer arm and an inner arm located between limbs of the outer arm, wherein both arms can pivot relative to each other and can be coupled to each other by a coupling, so that when coupled, a large valve lift is generated and when decoupled, a small or 0 valve lift is generated, wherein a contact for a gas-exchange valve is provided on a bottom side of the finger lever on a first end and a complementary surface for a support element is located on a second end, and also at least one counter surface for a large lifting lobe is provided on a top side of the outer arm and a counter surface for a small or 0 lifting lobe is provided on a top side of the inner arm, the limbs of the outer arm are connected in a region of the second end for the complementary surface by a crossbar, wherein a smooth-surfaced blind borehole is located above the complementary surface and starting from the second end, the coupling includes a slide is located in the inner arm, which can be displaced longitudinally therein, and the slide can be displaced from the blind borehole for coupling of the arms, so that the slide catches under a driver surface of the crossbar formed as a bottom side in part of the outer arm, wherein the inner am is essentially smooth surfaced on the top side up to the counter surface, and at least one finger-like height stop for the outer arm extends out from the inner arm over the crossbar generally flush with the top side on a side with the complementary surface, and wherein the inner arm is connected to the limbs of the outer arm so that it can pivot in a region of the first end on a side of the gas-exchange valve.