Patent ID: 8739756
Filing Date: 2014-06-03
Classification: F01M,F01P,F02F

Abstract:
1. A cooling system for an engine assembly comprising: a generally V-shaped engine block having a first and a second row of cylinder bores and a valley between the rows of cylinder bores; wherein the engine block defines a first coolant flow passage and a second coolant flow passage generally parallel with the first coolant flow passage and both extending along a length of the engine block past multiple ones of the cylinder bores of the first row and configured to carry coolant through the engine block; wherein the engine block defines an oil flow passage configured to carry lubricating oil through the engine block; wherein the oil flow passage at least partially surrounds the first and second coolant flow passages and is sufficiently adjacent to the coolant flow passage such that the lubricating oil flowing in the oil flow passage is cooled by the coolant flowing in the coolant flow passage by heat transfer through the engine block; wherein the oil flow passage has a first portion generally above the first coolant passage, a second portion generally below the first coolant passage, and an elbow portion connecting the first portion and the second portion; wherein the elbow portion is positioned in the engine block outside the valley; and wherein the elbow portion of the oil flow passage is configured to function as a reservoir to hold at least some of the oil that has flowed through the first portion and past the first coolant flow passage prior to flowing in the second portion between the first and the second coolant flow passages.