Focal oiling for a piston assembly

Abstract

A saddle portion for use with a piston head for use in an internal combustion engine is provided, that includes a saddle portion including an upper surface and a lower surface. At least two passages extend from the lower surface to the upper surface, and form a fluid path that permits cooling of the piston head.

1 . A saddle portion for use with a piston head for use in an internal combustion engine, comprising:
 an upper surface and a lower surface; and   at least two passages that extend from said lower surface to said upper surface;   wherein said passages form a fluid path that permits cooling of the piston head.   
   
   
       2 . The saddle portion of  claim 1 , wherein at least one of said passages is offset at a predetermined distance from a center axis of the piston head. 
   
   
       3 . The saddle portion of  claim 1 , wherein each of said passages are generally equally offset from a center axis of the piston head. 
   
   
       4 . The saddle portion of  claim 1 , wherein said passages are angled with respect to a center axis of the piston head. 
   
   
       5 . The saddle portion of  claim 4 , wherein said passages are radially outwardly angled between approximately one degree to approximately twenty degrees. 
   
   
       6 . The saddle portion of  claim 1 , wherein said passages are generally parallel with a center axis of the piston head. 
   
   
       7 . The saddle portion of  claim 1 , said lower surface including a channel for allowing one of said passages to be in fluid communication with another one of said passages. 
   
   
       8 . The saddle portion of  claim 7 , wherein said lower surface further includes at least one dowel aperture interposed within at least a portion of said channel. 
   
   
       9 . The saddle portion of  claim 8 , said dowel aperture selectively receiving a dowel, and wherein said dowel includes at least one dowel passageway that allows for fluid communication with said channel. 
   
   
       10 . The saddle portion of  claim 1 , wherein an outlet of said passages is selectively aligned in fluid communication with a corresponding cooling passage within the piston head. 
   
   
       11 . The saddle portion of  claim 10 , wherein said outlet is selectively positioned to facilitate increased cooling flow in a desired region of the piston head. 
   
   
       12 . A saddle for use with a piston head for use in an internal combustion engine, comprising:
 a lower surface; and   said lower surface including a channel;   wherein said channel extends along a portion of said lower surface to form a fluid path.   
   
   
       13 . The saddle portion of  claim 12 , wherein said channel extends radially outwardly from a center axis of said piston head. 
   
   
       14 . The saddle portion of  claim 12 , further including an upper surface of said saddle portion and at least one passage extending from said upper surface to said lower surface and in fluid communication with said channel. 
   
   
       15 . The saddle portion of  claim 14 , wherein an outlet of said passages is selectively aligned in fluid communication with a corresponding cooling passage within the piston head. 
   
   
       16 . The saddle portion of  claim 15 , wherein said outlet is selectively positioned to facilitate increased cooling flow in a desired region of the piston head. 
   
   
       17 . The piston head of  claim 14 , wherein said piston head further includes a crown portion connected to said saddle portion, and said crown portion including at least one cooling passage in fluid communication with at least one of said passages, and said cooling passage facilitates the flow of said fluid path to at least one desired, predetermined location within the interior of said piston head. 
   
   
       18 . The saddle portion of  claim 14 , further including a second passage extending from said upper surface to said lower surface, wherein said channel allows for said at least one passage to be in fluid communication with said second passage. 
   
   
       19 . The saddle portion of  claim 18 , wherein at least one of said at least one passage and said second passage are offset at a predetermined distance from the center axis of the piston head. 
   
   
       20 . The saddle portion of  claim 12 , wherein said lower surface further includes at least one dowel aperture interposed within at least a portion of said channel. 
   
   
       21 . The saddle portion of  claim 20 , said dowel aperture selectively receiving a dowel, and wherein said dowel includes at least one dowel passageway that allows for fluid communication with said channel. 
   
   
       22 . A piston head for use in an internal combustion engine, comprising:
 a crown portion including at least one cooling passage for forming a fluid path that permits cooling of the piston head;   a saddle portion connected to said crown portion, said saddle portion including an upper surface and a lower surface;   at least two passages extending from said lower surface to said upper surface and in fluid communication with said at least one cooling passage; and   a channel formed in said lower surface and extending radially outwardly to allow for one of said passages to be in fluid communication with the other one of said passages;   wherein said at least one cooling passages facilitates the flow of said fluid path to at least one desired, predetermined location within the interior of the piston head that represents an area of elevated temperature during engine combustion.   
   
   
       23 . The piston head of  claim 22 , wherein at least one of said passages is offset at a predetermined distance from a center axis of the piston head. 
   
   
       24 . The piston head of  claim 22 , wherein said lower surface further includes at least one dowel aperture interposed within at least a portion of said channel, said dowel aperture selectively receiving a dowel and including at least one dowel passageway that allows for fluid communication with said channel. 
   
   
       25 . A method of forming a fluid path in a saddle portion of a piston head, comprising the steps of:
 creating a channel along a portion of a lower surface of said saddle portion of the piston head; and   providing a plurality of passages located within said saddle portion and in fluid communication with said channel, offsetting said passages from a center axis of said piston head.   
   
   
       26 . The method of  claim 25 , further comprising the step of angling said passages no more than approximately twenty degrees with respect to the center axis. 
   
   
       27 . The method of  claim 26 , further comprising the step of arranging an outlet of each of said passages to maximize fluid delivery to a preselected region within the piston head to maximize cooling.