Patent ID: 8408882

Claim:
A pump and engine system, comprising: an internal combustion engine, comprising: an engine block forming a chamber therein, a cover for the chamber, the cover comprising an area configured to hold a lubricant, a first surface contacting the lubricant and a second opposite surface, and a crankshaft within the chamber; and a water pump mounted to the second surface of the cover, the water pump comprising: a pumping mechanism powered by the crankshaft, an inlet through which water enters the water pump, an outlet through which water exits the water pump, and a fluid passage between the inlet and the outlet; wherein a portion of the fluid passage is formed in the cover adjacent to the first surface, the portion of the fluid passage for delivering fluid to the pump, whereby heat transfers from the lubricant to the water in the portion of the fluid passage during operation of the pump and engine system.