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Class Information
Number: 123/196R
Name: Internal-combustion engines > Lubricators
Description:










Sub-classes under this class:

Class Number Class Name Patents
123/196CP Crankcase, pressure control 119
123/196A Filtering 293
123/196AB Heating and cooling 304
123/196S Safety devices 318
123/196V Sleeve valve lubrication 10
123/196M Upper cylinder lubricants 146
123/196W Vertical shaft 181


Patents under this class:
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Patent Number Title Of Patent Date Issued
6763797 Engine oil system with variable displacement pump Jul. 20, 2004
6763814 Oil tank system for engine Jul. 20, 2004
6761142 Oil pressure control for an outboard motor Jul. 13, 2004
6758183 Joint structure for oil pump shaft and balancer shaft Jul. 6, 2004
6758184 Method and apparatus for reducing oscillatory camshaft torque in an internal combustion engine Jul. 6, 2004
6758187 Method and apparatus to estimate oil aeration in an engine Jul. 6, 2004
6752117 Balancer shaft assembly Jun. 22, 2004
6750763 System and method for measuring oil condition in large engines Jun. 15, 2004
6745741 Cooling system for four-stroke cycle internal combustion engine Jun. 8, 2004
6742490 Oil pickup tube assembly Jun. 1, 2004
6742491 Engine lubrication system Jun. 1, 2004
6743063 Dry sump engine for a small planing boat Jun. 1, 2004
6739291 Piston cooling device for multicylinder engine May. 25, 2004
6739305 Oil pump for internal combustion engine and method of operating the same May. 25, 2004
6732700 Oil pump unit for engine May. 11, 2004
6732701 Oil circuit for twin cam internal combustion engine May. 11, 2004
6725823 Lubricating oil supply structure for internal combustion engine Apr. 27, 2004
6725958 Snowmobile Apr. 27, 2004
6722860 Oil pump mounting structure Apr. 20, 2004
6718936 Four-cycle engine for small watercraft Apr. 13, 2004
6719598 System for lubricating engine for personal watercraft Apr. 13, 2004
6715460 Lubrication system for snowmobile engine Apr. 6, 2004
6715461 System for lubricating valve-operating mechanism in engine Apr. 6, 2004
6715473 EGR equipped diesel engines and lubricating oil compositions Apr. 6, 2004
6708652 Engine valve timing apparatus Mar. 23, 2004
6708664 Auxiliary equipment in an engine Mar. 23, 2004
6708665 Fluid cooling device Mar. 23, 2004
6705263 Handheld type four-cycle engine Mar. 16, 2004
6705271 Four-stroke cycle internal combustion engine Mar. 16, 2004
6691668 Prevention of nuisance activation of locomotive low engine lube oil protection mechanism Feb. 17, 2004
6688928 Personal watercraft having engine with supercharger incorporated therein Feb. 10, 2004
6684846 Crankshaft oil circuit Feb. 3, 2004
6681737 Engine lubrication system Jan. 27, 2004
6675764 Oil feed system for IC engine with variable camshaft timing Jan. 13, 2004
6672273 Handheld type four-cycle engine Jan. 6, 2004
6666184 Multi-position, operator-carried, four-cycle engine Dec. 23, 2003
6659064 Compact four-stroke combustion engine, especially for the use in a portable working device Dec. 9, 2003
6655341 Oil sump for vertically shafted engines Dec. 2, 2003
6655342 Pre-lubrication system Dec. 2, 2003
6652338 Lubricant drain arrangement for multi-cylinder internal combustion engine Nov. 25, 2003
6644250 Engine oiling system and an oil system distribution manifold, and method of use Nov. 11, 2003
6644262 Oil pump mounting structure for engine Nov. 11, 2003
6644263 Engine with dry sump lubrication Nov. 11, 2003
6640767 Oil pan structure and oil pan separator Nov. 4, 2003
6640768 Lubrication system for direct injected engine Nov. 4, 2003
6640769 Engine lubrication structure Nov. 4, 2003
6640779 Low cost new internal combustion engine with increased mechanical efficiency, fuel saver and pollution controlled Nov. 4, 2003
6640851 Shaft assembly for stump cutter Nov. 4, 2003
6637399 Lubrication structure in OHC engine Oct. 28, 2003
6631701 Camshaft lubrication system Oct. 14, 2003

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