Invention Application
- Patent Title: Switchable finger lever of a valve train of an internal combustion engine
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Application No.: US12214337Application Date: 2008-06-18
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Publication No.: US20090000584A1Publication Date: 2009-01-01
- Inventor: Bodo Rorig , Joachim Settz
- Applicant: Bodo Rorig , Joachim Settz
- Priority: DE102007029465.6 20070626
- Main IPC: F01L1/18
- IPC: F01L1/18

Abstract:
The invention proposes a switchable finger lever (1) of a valve train of an internal combustion engine, said finger lever (1) comprising an outer lever (2) between whose arms (3) an inner lever (4) extends, a support (9) for at least one gas exchange valve being arranged on one end (7), said inner and outer levers (4, 2) extending on a common axle (10) in the region of said one end (7), said finger lever (1) further comprising a lost motion spring means (11) acting between said inner and outer levers (4, 2), said outer lever (2) possessing on the undersurface (8) on another end (12), a contact surface (13) for a support element, a coupling element (14) is arranged above or laterally of said contact surface (13), which coupling element (14), for realizing coupling, can be brought partially into engagement with an entraining surface (15) of an adjoining crossbar (16) of the inner lever (4), wherein the inner lever (4), starting from its crossbar (16) on the another end (12), merges into a box-like open center portion (17) having two bar-shaped arms (18) that, in a direction toward the one end (7), comprise crossbar sections (19) that are strongly bent toward each other and extend further in form of a single, thin-walled bar (21) that surrounds the axle (10) in a central region of the axle (10), the outer lever (2) comprises a box-like open center portion (22) comprising the bar-shaped arms (3) between which the center portion (17) of the inner lever (4) extends, these bar-shaped arms (3) extend further in direction of the one end (7) in form of transversal sections (23) that are strongly bent toward each other and end in two parallel fingers (24) while being arranged through bores on the axle (10), and wherein the outer lever (2) adjoins the inner lever (4) in a substantially wall-against-wall engagement.
Public/Granted literature
- US07921821B2 Switchable finger lever of a valve train of an internal combustion engine Public/Granted day:2011-04-12
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