Patent ID: 7007654

Claim:
In a system for pre- and post-ignition lubrication of an internal combustion engine having an oil reservoir and at least one oil passageway, from an oil galley of the engine, communicating externally thereof, an oil circulation circuit auxiliary to that of said engine, said circuit comprising: (a) a first conduit having an inlet and an outlet, said inlet in fluid communication with an outlet of said oil passageway of said engine, (b) an auxiliary oil pump, including power means therefore, having an inlet and an outlet, said inlet in fluid communication with said outlet of said first conduit; (c) a second conduit having an inlet and an outlet, said inlet in fluid communication with said outlet of said pump, said outlet thereof in fluid communication with said engine oil passageway; (d) means, including timing means, for selectably actuating said power means of said pump for a selectable periods of time prior to ignition, after ignition stops, or both; (e) means for selectably closing said outlet of said second conduit at or upstream of, said inlet to said engine oil passageway, wherein said closing means are is normally-open; (f) a third conduit having an inlet and an outlet, said inlet in fluid communication with said outlet of said second conduit, said inlet disposed upstream of said normally-open closing means of said second conduit; (g) a fourth conduit having an inlet and an outlet, said inlet in fluid communication with said outlet of said third conduit, said outlet thereof in fluid communication with said first conduit and upstream of said auxiliary oil pump; (h) a pressure relief valve disposed within said fourth conduit between said inlet and outlet thereof; (i) an oil drain in fluid communication with said outlet of said third fluid conduit; (j) means for selectably opening said oil drain when said outlet of said second conduit is closed during pre-ignition; and (k) means for selectably opening said oil drain when said outlet of said second conduit is closed during post-ignition.