Outboard Marine Corporation

Kenneth M McLeod

Richard P Kolb

Dennis J Friedle

James L Holt

John M Mahoney

A marine installation comprising a propulsion unit adapted to be mounted on a boat for pivotal movement relative thereto about a generally vertical steering axis, the propulsion unit including a rotatably mounted propeller, an engine drivingly connected to the propeller, a fuel supply valve adapted to communicate between a fuel reservoir and the engine and actuatable between a first state and a second state for respectively permitting and preventing fuel flow from the fuel reservoir, a control switch operably connected to the engine and actuatable between a first state and a second state for respectively permitting and preventing engine operation, and a mechanism responsive to the state of both the fuel supply valve and the control switch for maintaining the fuel supply valve and the control switch in the same state.

Anti-siphon fuel valve assembly for marine installations

An alarm system for a two-cycle internal combustion engine having a lubricating oil pump and an alternator generating electric pulses at a frequency related to engine speed. An integrated circuit configured as a counter has an input connected to receive the alternator pulses. A pressure switch generates an electric signal in response to the oil pressure increase in the pump output each time the pump operates. The integrated circuit has a first output which changes logic state in response to a predetermined count and has a second output which changes value at a frequency related to engine speed. The signal generated by the pressure switch is connected to a reset input to the integrated circuit so the counter is reset to zero in response to each oil pressure signal. An SCR switch controls operation of an alarm horn. A control connected to the integrated circuit and to the SCR operates the horn at a frequency related to engine speed. The control includes a flip-flop circuit connected to an IC output which changes logic at a given count. The control also includes a gate which is connected to a second IC output and is enabled by operation of the flip-flop. In one embodiment, the electric pulses, which are applied to the integrated circuit counter, are derived from pressure variations in fuel supplied to the engine by a fuel pump.

No oil warning circuit

Disclosed herein is an electronic lubricant metering system for an engine which includes a throttle for regulating the amount of fuel delivered to the engine, the system comprising a frequency to voltage converter for producing a first electrical signal representative of engine RPM, a potentiometer including a wiper coupled to move in response to movement of the engine throttle, the voltage appearing on the wiper producing a second electrical signal representative of the amount of fuel being delivered to the engine, an oil pump for supplying a variable amount of lubricant into the fuel delivered to the engine, and an electrical control circuit responsive to the first and second electrical signals for providing a control output which renders the oil pump operative to vary the lubricant/fuel ratio of the lubricant and fuel mixture delivered to the engine.

Growing community of inventors

Lake Villa, IL, United States of America

Kenneth M McLeod