Patent ID: 9273572
Filing Date: 2016-03-01
CPC Classification: B21J,F01M,F01P,Y10T

Claim Text:
1. A method of modifying a diesel engine for cold weather operation, said diesel engine having first and second engine oil ports comprising an engine oil outlet port and an engine oil return oil port, said method comprising: providing a tee fitting; connecting the first engine oil port to the tee fitting; providing an oil cooler having first and second fluid ports for transmitting a flow of oil; providing a bypass module having first, second and third fluid ports; connecting a first branch of the tee fitting to the first fluid port of the oil cooler; connecting a second branch of the tee fitting to the first fluid port of the bypass module; connecting the second fluid port of the oil cooler to the second fluid port of the bypass module, the second fluid port of the bypass module communicating via an internal passageway with the third fluid port of the bypass module; connecting the third fluid port of the bypass module to the second engine oil port; and wherein the bypass module comprises a thermostatic element that moves toward a first position to allow a flow of oil between the first fluid port of the bypass module and the third fluid port of the bypass module if an oil temperature is below a preset level and moves toward a second position to allow a flow of oil between the second fluid port of the bypass module and the third fluid port of the bypass module, whereby a flow of oil is directed to the oil cooler if the oil temperature is above a predetermined level.