Method and device for lubricant oil transport in an internal combustion engine

Abstract

A lubricant oil transport device and method is provided in an internal combustion engine using wet sump lubrication. Near the connecting rod and the crankshaft cheeks, which are disposed exteriorly in the transverse acceleration and/or inclination direction and lie opposite a decentralized oil suction system, the oil repulsion part is configured to cause a centrifugal flow for oil transport in the oil pan area opposite the transverse acceleration and/or inclination, resulting from interaction of the oil repulsion part, connecting rod, and crankshaft cheeks. Thus, lubricant oil supply is always assured, without pumps additionally integrated into the engine, which increase costs and likelihood of failure. The oil pan may also now be flatter, which allows a low center of gravity of the engine while maintaining the required minimum road surface distance. Regarding oil change intervals, a greater amount of oil can be used, with the same proportions of the oil pan.

1 . A device for lubricant oil transport in an internal combustion engine using wet sump lubrication and having a transverse acceleration or inclination with a direction comprising: 
 (a) a lubricant oil pump,    (b) a lubricant oil suction system;    (c) a crank mechanism comprising a plurality of connecting rods and associated crankshaft cheeks having running paths;    (d) an oil pan comprising a plurality of separators;    (e) an oil repulsion part;    (f) a guidance system opening into an area of said oil pan opposite said transverse acceleration or inclination where said lubricant oil suction system is disposed;    wherein said connecting rods and said crankshaft cheeks are disposed exteriorly of said oil repulsion part in the direction of the transverse acceleration or inclination, said oil repulsion part being arranged near said connecting rods and said crankshaft cheeks so that the running paths of each connecting rod and associated crankshaft cheeks pass along near said oil repulsion part;    wherein said oil repulsion part has at least one tangentially disposed lubricant oil outflow opening near each connecting rod and associated crankshaft cheeks; and    wherein said at least one lubricant oil outflow opening is connected to said guidance system.    
   
   
       2 . The device according to  claim 1 , wherein said separators are selected from the group consisting of splash baffles and partition elements.  
   
   
       3 . The device according to  claim 1 , wherein said separators comprise vertical partition elements and said guidance system passes through or around said partition elements for transport of lubricant oil.  
   
   
       4 . A device for lubricant oil transport in an internal combustion engine using wet sump lubrication and having a transverse acceleration or inclination comprising: 
 (a) a lubricant oil pump,    (b) a lubricant oil suction system;    (c) a crank mechanism comprising a plurality of connecting rods and associated crankshaft cheeks having running paths;    (d) an oil pan comprising a plurality of separators, said lubricant oil suction system being disposed centrally in said oil pan;    (e) an oil repulsion part; and    (f) a plurality of guidance systems opening into an area of said oil pan toward and opposite said transverse acceleration or inclination;    wherein said connecting rods and said crankshaft cheeks are disposed exteriorly of said oil repulsion part in and opposite the direction of the transverse acceleration or inclination, said oil repulsion part being arranged near said connecting rods and said crankshaft cheeks so that the running paths of each connecting rod and associated crankshaft cheeks pass along near said oil repulsion part;    wherein said oil repulsion part has at least one tangentially disposed lubricant oil outflow opening near each connecting rod and associated crankshaft cheeks; and    wherein said at least one lubricant oil outflow opening is connected into an area of the oil pan in and opposite the direction of the transverse acceleration or inclination.    
   
   
       5 . The device according to  claim 4 , wherein said separators are selected from the group consisting of splash baffles and partition elements.  
   
   
       6 . The device according to  claim 4 , wherein said separators comprise vertical partition elements and said guidance system passes through or around said partition elements for transport of lubricant oil.  
   
   
       7 . A method for transporting lubricant oil in an internal combustion engine using wet sump lubrication and having a lubricant oil pump for lubricant supply, an oil pan having a plurality of separators, a lubricant oil suction system for drawing the lubricant oil off from the oil pan, a crank mechanism comprising a plurality of connecting rods and associated crankshaft cheeks, an oil repulsion part, and a transverse acceleration or inclination with a direction comprising the steps of: 
 (a) disposing the lubricant oil suction system in an area of the oil pan that lies opposite the transverse acceleration or inclination;    (b) disposing each connecting rod and associated crankshaft cheeks exteriorly of the oil repulsion part in the direction of the transverse acceleration or inclination and arranging each connecting rod and associated crankshaft cheeks to lie opposite the lubricant oil suction system so that the connecting rod and associated crankshaft cheeks form a contact with a lubricant oil surface when severe transverse acceleration or inclination near the connecting rod and associated crankshaft cheeks causes the lubricant oil surface to rise above the oil repulsion part; and    (c) transporting lubricant oil into the area of the oil pan that lies opposite the transverse acceleration or inclination as a result of the contact in interaction with the oil repulsion part by way of lubricant oil outflow openings tangentially disposed in the oil repulsion part and a guidance system.    
   
   
       8 . The method according to  claim 7  wherein the separators are selected from the group consisting of splash baffles and partition elements.  
   
   
       9 . A method for transporting oil in an internal combustion engine using wet sump lubrication and having a lubricant oil pump for lubricant supply, an oil pan having a plurality of separators, a lubricant oil suction system for drawing lubricant oil from the oil pan, a crank mechanism comprising a plurality of connecting rods and associated crankshaft cheeks, an oil repulsion part, and a transverse acceleration or inclination with a direction comprising the steps of: 
 (a) disposing the lubricant oil suction system centrally in the oil pan relative to the connecting rods and crankshaft cheeks;    (b) disposing each connecting rod and associated crankshaft cheeks exteriorly of the oil repulsion part in or opposite the direction of the transverse acceleration or inclination, so that the connecting rod and associated crankshaft cheeks form a contact with a lubricant oil surface when severe transverse acceleration or inclination near the connecting rod and associated crankshaft cheeks causes the lubricant oil surface to rise above the oil repulsion part; and    (c) transporting lubricant oil into the area of the oil pan that lies opposite the transverse acceleration or inclination as a result of the contact in interaction with the oil repulsion part by a way of lubricant oil outflow openings tangentially disposed in the oil repulsion part and a guidance system.    
   
   
       10 . the method according to  claim 9  wherein the separators are selected from the group consisting of splash baffles and partition elements.