| Patent Number |
Title Of Patent |
Date Issued |
| 7552586 |
Marine exhaust system with a downstream oxygen sensor located away from a water reversion liquid |
June 30, 2009 |
| A marine engine exhaust system has an oxygen sensor located within a catalyst housing structure and downstream from a catalyst device. The oxygen sensor is located away from a reversion liquid trajectory path that defines the likely path of liquid water flowing in a reverse direction |
| 7497751 |
Alternative cooling path system for a marine propulsion device |
March 3, 2009 |
| A cooling system of a marine propulsion device is provided with a valve that directs alternative flows of cooling water to portions of the marine propulsion system and apportions the cooling water flows in response to the speed of the water pump used to draw water from a body of water. |
| 7490584 |
Fuel enrichment cold start/run circuit |
February 17, 2009 |
| A fuel enrichment cold start/run circuit and method pumps fuel from the fuel pump to an enrichment circuit inlet independently of a carburetor float bowl such that the enrichment circuit is supplied with fuel regardless of the orientation of the float bowl, including angular orientat |
| 7398745 |
Apparatus and method for controlling the operation of a cooling system for a marine propulsion d |
July 15, 2008 |
| A cooling system for a marine propulsion device provides a bypass loop around a cooling pump that allows the flow of cooling water through certain components to be reduced or increased as a function of the temperature of those components while causing a full flow of cooling water to |
| 7370611 |
Apparatus and method for controlling the operation of a cooling system for a marine propulsion d |
May 13, 2008 |
| A cooling system for a marine propulsion device provides a bypass loop around a cooling pump that allows the flow of cooling water through certain components to be reduced or increased as a function of the temperature of those components while causing a full flow of cooling water to |
| 7216638 |
Control of exhaust gas stoichiometry with inducted secondary air flow |
May 15, 2007 |
| A method for operating a marine engine uses four valves to control the flow of secondary air that is inducted into each of the cylinders of an engine. An oxygen sensor is disposed in an exhaust passage downstream from the cylinders and upstream from a catalytic converter. A carburetor |
| 7077387 |
Limited access adjustment system for an internal combustion engine |
July 18, 2006 |
| An adjustment system for a carburetor of an engine places a housing structure around the head of an adjustment screw to inhibit access to the head of the idle fuel adjustment screw except by properly trained technicians who possess an appropriately shaped tool which allows this acces |
| 7014519 |
Marine propulsion system with a tilted in-line engine |
March 21, 2006 |
| A marine propulsion system places an in-line engine at a tilted angle relative to a vertical plane in order to reduce the maximum height requirement space of an engine compartment in a marine vessel. The crankshaft axis of the in-line engine can be located on a vertical vessel symmet |
| 6800004 |
Marine exhaust cooling system |
October 5, 2004 |
| An exhaust system for a marine engine uses an orifice to distribute liquid coolant flow between two alternative and parallel paths. One coolant path passes through a generally horizontal portion of an exhaust elbow and the other coolant path passes through the orifice and directly to a v |
| 6748906 |
Heat exchanger assembly for a marine engine |
June 15, 2004 |
| A heat exchanger for a marine internal combustion engine is disposed between first and sides of a V-shaped engine configuration. A plurality of tubes and related structure are disposed within a cavity formed as an integral part of an air intake manifold of the engine. A first cooling |
| 6699149 |
Idler pulley with a multiple position locating mechanism |
March 2, 2004 |
| An idler pulley is provided with a plurality of attachment locations, or holes, extending through a hub portion of the pulley to allow the pulley to be attached to a stationary object in a plurality of alternative configurations in order to provide a way for adjusting or selecting the |
| 6343965 |
Pneumatically actuated marine engine water drain system |
February 5, 2002 |
| A drain system for a marine vessel is provided which includes one or more pressure actuated valves associated with the coolant water drain system. The boat operator is provided with a pressure controller that allows pressure to be introduced into the system for the purpose of actuating t |
| 6099367 |
Hydrostatic propulsion system for a marine vessel |
August 8, 2000 |
| A hydrostatic marine propulsion system is provided with a valve that is able to bypass an infinitely variable amount of hydraulic fluid from a hydrostatic pump to bypass a hydrostatic motor which is used to drive a propeller shaft. The infinitely variable valve is connected between the |
| 5964206 |
Fuel supply cooling system for an internal combustion engine |
October 12, 1999 |
| A fuel supply system is provided with a heat exchanger disposed in a generally planer cavity within a base. A manifold attaches to the base and contains the generally planer cavity. A heat exchanger, which comprises a fuel conduit, is disposed within the cavity. As fuel flows from a fuel |
| 5832903 |
Fuel supply system for an internal combustion engine |
November 10, 1998 |
| A fuel supply system for a marine propulsion system having an electronically controlled fuel injection system eliminates the need for a vapor separator. The system pumps an excessive amount of fuel through a plumbed fuel supply loop and cools recirculated fuel to cool all the compone |
| 5601059 |
Fuel distribution insert for internal combustion engine |
February 11, 1997 |
| An injection-molded, plastic fuel distribution insert for an internal combustion engine having a wet manifold promotes complete fuel atomization and vaporization. The fuel distribution insert also provides for even fuel distribution to the various combustion chambers. The fuel distributi |
| 5599218 |
Configuration for a marine engine exhaust system |
February 4, 1997 |
| A marine transmission mounting system for marine engine and drive that are mounted in a mid-travel position to joists in the hull space between a hull and a floor of the boat. Such a system is typically used on a competition water-ski boat where the engine, transmission, and propeller |
| 5443046 |
Efficiently pumped fuel supply system |
August 22, 1995 |
| In a low pressure continuous flow fuel injection system for an internal combustion engine, an electric fuel pump (18) is energized with a variable duty cycle to vary the pumped volume output of the pump according to engine fuel requirements. The duty cycle is varied to energize the pump |
| 5408971 |
Fuel rail construction for an electronic fuel injected engine |
April 25, 1995 |
| A fuel rail assembly for an internal combustion engine including an elongated rail having a longitudinal inlet passage and a longitudinal outlet passage. The upstream end of the inlet passage is connected to a fuel supply line while the downstream end of the inlet passage is connecte |
| 5400750 |
Manifold and plenum construction for an electronic fuel injected engine |
March 28, 1995 |
| An improved intake manifold and plenum construction for an electronic fuel injected engine. The manifold includes a plurality of parallel runners, with each runner having a lower end communicating through a port in the cylinder head with a cylinder of the engine, and an open upper end. A |
| 5394846 |
Throttle body assembly |
March 7, 1995 |
| A dual bore throttle body assembly for a marine engine. The assembly includes a body having a pair of side-by-side bores, each of which is adapted to be enclosed by a flat throttle valve. A separate shaft is connected to each throttle valve and a throttle cable is connected to the sh |
| 5389245 |
Vapor separating unit for a fuel system |
February 14, 1995 |
| A vapor separating unit for a fuel system and having particular application to a fuel system for a marine engine. The vapor separating unit includes a closed tank having a fuel inlet through which fuel is fed to the tank by a diaphragm pump. The liquid level in the tank is controlled by |
