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Match Document Document Title
7597600 Engine for driving a watercraft propelled by a water jet  
A system for driving a water induction and discharge system of a watercraft propelled by a water jet includes a water impeller, an engine including a driven shaft and a first chamber for containing...
7597599 System for sealing a keel cooler to a vessel hull  
An improved system for sealing a keel cooler to a hull of a vessel, of the type including a plurality of flow channels for exchanging heat between vessel water flowing in the channels and...
7524223 Outboard motor  
An outboard motor is provided that is capable of reliably separating water and air sucked in from an intake port and efficiently draining the separated water. The motor can comprise a cowling, a...
7497751 Alternative cooling path system for a marine propulsion device  
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...
7481262 Keel cooler with fluid flow diverter  
A keel cooler having a standard header with an internal beveled bottom wall, with orifices on the inner wall of the exterior tubes extending into the header, the orifices being in the natural flow...
7438787 Impressed current cathodic protection system for marine engine  
A cathodic protection system has electrodes disposed in a coolant passage of an engine filled with a conductive coolant. The electrodes are electrically insulated from the engine. A power supply...
7438613 Marine engine gravity drain system  
A marine engine quick drain system that is comprised of several engine block drain connections, provided in the area of the engine that must be drained, which drain by means of flow tubes to a...
7431809 Electrode for a cathodic protection device  
An electrode for a cathodic protection device that has one or more electrode bodies formed of a conductive wire. The electrode includes a pair of films made of an insulating material which are...
7278408 Returnless fuel system module  
A returnless fuel system module includes a fuel pump in a fuel pump cavity, a fuel pressure regulator in a fuel pressure regulator cavity, first and second transfer passages therebetween, and a...
7223139 Outboard motor with plastic oil pan  
An outboard motor incorporates an engine. An exhaust conduit is disposed below the engine. The exhaust conduit forms a first exhaust passage to discharge exhaust gases from the engine. A plastic...
7182656 Control system for small watercraft  
A small watercraft with an emergency shut-off system is provided. The emergency shut-off system is configured to shut off the engine of the small watercraft when the small watercraft is overturned....
7121907 Anode mounting structure for outboard motor engine  
An anode mounting structure for a marine engine including a metallic gasket mounted on the mating face between components of the engine, such as a cylinder head and a cylinder body, which form a...
7115009 Outboard motor  
An outboard motor is provided with a four-stroke-cycle engine and an oil pan disposed below the engine. In the arrangement of the oil pan, a lubricating oil reservoir is arranged on a front side of...
7086370 Outboard motor  
An outboard motor has an engine and a mounting case disposed below and connected to the engine. The mounting case has a depression opening upward. The opening is covered by a cover to form a...
7056170 Water-cooled vertical engine and outboard motor equipped therewith  
A water-cooled vertical engine includes a cylinder block cooling water jacket formed in a cylinder block and a cylinder head cooling water jacket formed in a cylinder head, the jackets being...
7044194 Heat exchanger with beveled header  
A header for a heat exchanger, the header having a beveled closed end portion.
6855021 Multiple valve engine for watercraft  
A multiple valve engine for a watercraft includes an improved construction that contributes in balancing the weight of the engine between the port and starboard sides of the watercraft hull. The...
6851257 Exhaust gas passage structure of outboard engine  
A split face of an exhaust passage-defining member is coupled to a split face provided at a rear portion of an oil case interposed between an engine block and an extension case. A main exhaust gas...
6810869 Ignition device for personal watercraft engine  
An ignition device for a personal watercraft engine, which allows mounting of a four-cycle engine on the personal watercraft and prevents occurrence of leakage of current. The engine for driving a...
6796859 Air intake silencer  
An air intake silencer includes an air inlet pipe and at least one tuning tube in fluid communication with the air inlet pipe. A first length and second length of the air inlet pipe and the tuning...
6746288 Personal watercraft having internal combustion engine with supercharger incorporated therein  
To utilize a small space in a vessel body efficiently and simultaneously augment the output power and realize a suitable water supply structure to an intercooler. A surge tank and an intercooler...
6726513 Jet-propulsion personal watercraft  
Disclosed is a jet-propulsion personal watercraft capable of easily removing and mounting an engine and easily performing maintenance of the engine mounted in a body of the watercraft. In an engine...
6701978 Easy change oil system  
Easy Change Oil System is a unit composed of a disposable plastic bag, jug or bottle adapted to screw directly into the oil drain aperture of fourstroke outboard engines, and/or other small...
6688929 Personal watercraft having an improved exhaust system  
A personal watercraft with an exhaust system including a first and second mufflers each disposed in opposite sides of the hull. A manifold pipe communicates the engine with the first muffler. A...
6685515 Overheat detection system for outboard motor  
A system for detecting overheat of an internal combustion engine for an outboard motor. In the system,when an elapsed time since engine staring is within a predetermined time, a detected engine...
6676466 Fast post-immerson restart system for a marine propulsion unit  
A marine propulsion unit comprises a cylinder ( 1 ), a combustion chamber ( 2 ) extending from one end of the combustion chamber, a spark plug ( 8 ) provided in the combustion chamber ( 2 ), and a...
6672919 Temperature control system for marine exhaust  
Temperature control system for marine engine exhaust system. The control system lowers flow of cooling water to water jacket and exhaust gas conduit of the exhaust system at low engine speeds. The...
6663451 Siphon pump for a marine propulsion device  
A fluid draining device for an outboard motor is provided with a conduit through which exhaust gases are directed. The flow of exhaust gas through the conduit induces a lowered pressure in a...
6652338 Lubricant drain arrangement for multi-cylinder internal combustion engine  
A lubricant drain arrangement for a multi-cylinder internal combustion engine having an engine body defining a plurality of cylinder bores and including a cylinder block and a crankcase member. The...
6645024 Fresh water marine engine flushing assembly and system  
An assembly structured to flush a cooling system of a marine engine, of varying types, with fresh water, wherein the fresh water is supplied from an on-board, maintained water supply which may also...
6612884 Negative intake pressure detection system in outboard motor  
An outboard motor is provided which includes, in an engine compartment defined by an engine hood, an engine, an intake manifold including a plurality of intake branch pipes connected to a plurality...
6582262 Four-stroke-cycle engine of an outboard motor  
A four-stroke-cycle engine of an outboard motor, comprises an engine body, a crankshaft, at least one camshaft, at least one camshaft driving mechanism, an oil pump, at least one valve timing...
6565398 Flushing adaptor for an outboard motor  
A flushing adaptor for an outboard motor provides a conduit connected to the cooling system of the engine of the outboard motor and to a hose fitting. The conduit is provided with a length that...
6558214 Engine arrangement for small planing watercraft  
A small planing watercraft including a hull, a propulsion unit mounted on the hull and a high RPM-high output engine for driving the propulsion unit, wherein the engine includes at least one intake...
6551154 Combined tell-tale fitting with water flushing attachment  
A tell-tale system is provided for an outboard motor in which the tell-tale fluid conduit is connectable to an external water source, such as a water hose, and is extendable away from the cowl of...
6544084 Induction system for small watercraft  
A small watercraft includes an internal combustion engine having an air induction system that minimizes the volume of water delivered to the combustion chambers and maintains a generally low center...
6540573 Cooling system for outboard motor  
A marine drive comprises an engine having a cooling system adapted to cool the combustion chambers, air intake system, and the power generator. Intake coolant passages are formed on either side of...
6533624 Four cycle lubricating system for watercraft  
A watercraft having a water propulsion unit driven by an impeller shaft which is powered by a four-cycle internal combustion engine is disclosed. The engine has a crankshaft which drives, via a...
6527604 Outboard engine with improved oil return path  
A compact and lightweight outboard engine ( 1 ) mounted to a boat stern by a mounting device having a tilt shaft comprises: an engine ( 2 ) including a flywheel ( 56 ) positioned at a lower end...
6500038 Passive air vent system for a marine propulsion engine  
A marine propulsion system is provided with a hydrophobic membrane disposed across a port of its cooling system which allows air to pass through the membrane, but inhibits water from passing...
6497596 Oil cooler for watercraft  
A lubrication cooling system for an internal combustion engine positioned within an engine compartment of a personal watercraft for powering a water propulsion unit thereof, is disclosed. The...
6494755 Fuel system for outboard motor engine  
A fuel system for an outboard motor includes a plurality of high-pressure pumps and a conduit circuit with a multi-branched passage connecting the engine's combustion chamber(s) to the fuel supply....
6491556 Ventilation system for watercraft engine  
A ventilation system for a watercraft engine includes an improved construction that can inhibit oil in an oil container from flowing into an air induction system even if the watercraft capsizes....
6478646 Drive device of inboard and outboard engines  
A drive of inboard-and-outboard engines, wherein a drive gear unit ( 10 ) meshing with driven gears ( 25, 26 ) disposed on the upper end side of a drive shaft ( 28 ) disposed generally in vertical...
6478643 Water pressure and volume flow regulator  
A water pressure and volume regulator for a marine engine includes a regulator body having a flow path defined therethrough. A piston is mounted along the flow path and is normally biased toward a...
6478002 Engine for watercraft  
An engine for a watercraft includes an improved air induction system that can have a large plenum chamber notwithstanding being placed in a narrow engine compartment. The air induction system...
6477992 Oiling system  
The present invention, in one form, is an oiling system for an outboard engine and includes an oil tank and an oil pump located within the tank. A manifold is coupled to the oil pump, and the...
6475046 Lubrication system for 4-cycle engine of small watercraft  
A watercraft includes a lubrication system having a lubricant pump assembly and a lubrication reservoir defined between a lower crankcase member and an oil cover. At least one oil passage connects...
6474286 Lubricant filler structure  
A lubricant filler structure for an internal combustion engine includes a lubricant filler tube having a lower end connected to the crankcase and an upper end forming a filling port. The filler...
6471558 Ventilation system for watercraft  
A watercraft includes a ventilation system for ventilating the engine compartment and for providing air for induction into the watercraft engine. An air duct extends through the hull and...
Matches 1 - 50 out of 493 1 2 3 4 5 6 7 8 9 10 >