Internal-combustion engines – Lubricators – Crankcase – pressure control
Patent
1995-06-07
1997-11-11
Solis, Erick R.
Internal-combustion engines
Lubricators
Crankcase, pressure control
418165, 123196W, F01M 102
Patent
active
056852665
ABSTRACT:
Bulk and complexity of a lubrication system incorporated in an internal combustion engine (10) having an engine block (11), a power shaft (12) mounted in the engine block for rotation about a power shaft axis, a combustion chamber (18), a valve arrangement (20) for controlling intake to and exhaust from the combustion chamber (18), a cam device (22) for actuating the valve arrangement (20), and a pressurized oil lubrication system (15) is avoided in a construction wherein the cam device (22) and the pressurized oil lubrication system (15) include a ring cam (24) journalled on the block (11). The ring cam (24) has an outer cam-shaped periphery (26) for actuating the valve arrangement (20), and an inner periphery (35) configured as a ring gear (36). The cam device (22) and the pressurized oil lubrication system (15) further include a drive gear (38) driven by the power shaft (12) and located within the ring gear (36) of the ring cam (24) and meshed therewith at a predetermined mesh point (D) to define a gear pump therewith. One side of the mesh point (D) defines a suction side of the gear pump and has an oil inlet (78) thereat. The other side of the mesh point (D) defines a discharge side of the gear pump and has an oil outlet (86) thereat.
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patent: 4249750 (1981-02-01), Kantner
patent: 4347700 (1982-09-01), Kantner et al.
patent: 5085188 (1992-02-01), Gasparri et al.
patent: 5215164 (1993-06-01), Shibata
patent: 5454354 (1995-10-01), Miller
Brunswick Corporation
Solis Erick R.
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