Patent ID: 8225766

Claim:
An oil shutoff system in a vehicle having a dry sump lubrication system having an engine oil tank with a vent to atmosphere, the vehicle also having a tether switch, the oil shutoff system comprising: a. a control valve having a valve inlet, a valve outlet, and an valve actuator; b. wherein the control valve is a normally open control valve; c. wherein the valve actuator is an electrically actuated solenoid; d. wherein the valve actuator is configured to hold the control valve open until the tether switch is closed; e. the control valve inlet configured to be fluidly coupled to the engine oil tank; f. the control valve outlet configured to be fluidly coupled to atmosphere; g. wherein the valve actuator is configured to be electrically coupled to the tether switch, so as to close the control valve when the tether switch is opened; and, h. further comprising an audio or visual signal configured to indicate when the control valve is in the closed position.