Multi-position crankshaft lip seal
AssigneePowerhouse Engine Solutions Switzerland IP Holding GmbH
InventorsSandeep Namadev Kamble, Michael Mendoza, Kamala Hasan Pethuraj, John Stephen Roth
Life of this patent
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Abstract
Various systems and methods are provided for utilizing a crankshaft lip seal over the course of a first overhaul life and a second overhaul life. In one example, a method includes installing the crankshaft lip seal between a flywheel housing and a crankshaft of an engine and operating the engine with the crankshaft lip seal. The method further includes removing the crankshaft lip seal, re-machining a floating seal sleeve coupled to the crankshaft or the flywheel housing, and replacing a lip. The crankshaft lip seal is then re-installed between the flywheel housing and the crankshaft and the engine operated with the re-installed crankshaft lip seal.
Claims20
A method for an engine, the method comprising:
- installing a crankshaft floating lip seal assembly between a flywheel housing of the engine and a crankshaft of the engine, the crankshaft floating lip seal assembly comprising a floating seal sleeve and a lip;
- operating the engine with the crankshaft floating lip seal assembly;
- removing the crankshaft floating lip seal assembly, re-machining the floating seal sleeve coupled to the crankshaft or the flywheel housing, and replacing the lip;
- reinstalling the crankshaft floating lip seal assembly between the flywheel housing and the crankshaft;
- and
- operating the engine with the reinstalled crankshaft floating lip seal assembly.
A system, comprising:
- a crankshaft;
- a flywheel housing;
- and
- a multi-position crankshaft lip seal installed between the flywheel housing and the crankshaft, wherein a lip of the multi-position crankshaft lip seal is in sealing engagement with the crankshaft, and a drain groove within the multi-position crankshaft lip seal is aligned with a drain passage within the flywheel housing.
A system for a multi-position crankshaft lip seal, the system comprising:
- a floating seal sleeve comprising a drain groove, a lip, and a sacrificial material;
- and
- a flange section extending perpendicularly from the floating seal sleeve,
- where the sacrificial material is positioned opposite the flange section and extends away from the lip, the sacrificial material later machined off without altering the lip or a function of the drain groove.
Dependencies are inferred from the claim text.