F - Mech Eng,Light,Heat,Weapons – 01 – L
Patent
F - Mech Eng,Light,Heat,Weapons
01
L
F01L 3/08 (2006.01) B23C 3/05 (2006.01)
Patent
CA 2090627
A fixture is provided for reworking valve guide bores in a cylinder head of an internal combustion engine, the engine including a valve seat corresponding to each valve guide bore. The fixture includes a frame with supports for holding the cylinder head, a carriage laterally movable on the fixture frame, an arm movably attached to the carriage and extending laterally over the supports, and an alignment member or valve seat bushing pivotally mounted on the arm. A biasing cylinder is operably attached to the carriage and positioned to bias the arm toward the cylinder head held on the supports. The alignment member is mounted to the arm in a ball and socket arrangement so that as the alignment member is biased against the valve seat of the cylinder head, the arm exerts a balanced force on the alignment member regardless of angular movement in any direction of the alignment member or flexing of the fixture. optimally, the alignment member includes a bore that allows removal of the valve guide boring tool and insertion of the tool for inserting a valve guide liner without releasing the biasing force holding the arm and alignment member against the valve seat.
Borden Ladner Gervais Llp
K-Line Industries Inc.
LandOfFree
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