Friction clutch, particularly for a motor vehicle, comprising differentiated friction means
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United States of America Patent
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Aug 4, 2009
Grant Date -
Jun 4, 2009
app pub date -
Jan 4, 2005
filing date -
Jan 9, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A clutch comprises at least one damper (22) having rotating input (24) and output (26) elements, elastic elements having a circumferential effect carried by the first (28) and second (30) guide washers connected in rotationally fixed manner to one of the input (24) and output (26) elements and via a web (36) connected in a rotationally fixed manner to the other input (24) and output (26) element. The clutch also comprises friction assemblies (44), which are activated by angular displacements relative to the guide washers (28, 30) and to the web (36) and which have a friction element (46) capable of being coupled to the web (36) via the complementary circumferential stops that interact only when the web (36) angularly displaces in a predetermined direction with regard to the guide washers (28, 30). The complementary circumferential stops are provided on the friction element (46), and an element (50), that is distinct from the web (36) and from the friction element (46), is connected in a rotationally fixed manner to the web (36).
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