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| Number | Title | Issue Date |
| 8137146 | Closed loop fluid cooling system for marine outboard, inboard, and inboard-outboard motors A closed loop fluid cooling system for marine motors is described. The system includes a motor cooling circuit in fluidic communication with fluid cooling jackets about a motor. The system includes a heat dissipation circuit. The motor cooling circuit is in closed f... | 03/20/2012 |
| 8133087 | Cooling water distribution system with debris evacuation capability An outboard motor cooling water distribution system directs water from the water jacket of an engine through a container in which a conduit has a first inlet opening that is configured to cause a water stream to entrain debris from a region near a drain opening of t... | 03/13/2012 |
| 7988509 | Flow control mechanism for ship having cooling system A flow control mechanism is provided for controlling a stern flow field disturbed by cooling water discharged from the cooling water outlet of a ship. The flow control mechanism is located within a distance, which corresponds to three times the diameter of the cooli... | 08/02/2011 |
| 7713103 | Cooling system of an amphibious vehicle Amphibious vehicle 3 has one or more ducts 9 running from a first to a second end of the vehicle; from vent 5 to vent 7, or vice versa. The vehicle prime mover 19, transmission, brakes, and/or electronic controls, may be cooled in ... | 05/11/2010 |
| 7666041 | Amphibious vehicle cooling systems Planing amphibious vehicle (101) comprises engine (105) with internal cooling ducts (106). The engine is cooled first by air-water exchanger (102), and secondly by water-water exchanger (108). One or both exchangers may be located ... | 02/23/2010 |
| 7666042 | No drill multiport drive shower A cooling apparatus for a marine propulsion system outdrive unit that can be attached to an outdrive unit without the need to drill holes in any portion of the outdrive unit. The cooling apparatus has a distribution tube assembly with at least one pickup port and a ... | 02/23/2010 |
| 7549904 | Metal gasket for marine engine A metal gasket is made up of a backing material made of stainless steel, a galvanizing film is formed on a surface of the backing material, and a sealing rubber film is formed on a surface of the galvanizing film. In one embodiment a silane coupling type vulcanizing... | 06/23/2009 |
| 7503819 | Closed cooling system for a marine engine A cooling system for a marine propulsion device provides a closed portion of the cooling system which recirculates coolant through the engine block and cylinder head, the exhaust manifold, and the exhaust elbow. It provides a pressure relief cap connected to the exh... | 03/17/2009 |
| 7497750 | Water cooling device for outboard motor A water cooling system for an outboard motor can include a casing that is configured to be submerged in water at a lower part thereof and to support an internal combustion engine on an upper part thereof. The system can have an exhaust passage that is formed in the ... | 03/03/2009 |
| 7479048 | Cooling system for stern drive The subject invention provides a cooling system for a stern drive, including: a conduit having a water outlet for discharging ambient water, which is introduced by using a water current generated by propulsion of a boat to which said stern drive is mounted, the wate... | 01/20/2009 |
| 7458868 | Small planing boat An air passage and a cooling water passage can be formed in an intercooler provided on a small planing boat. A cooling water inlet of a cooling water passage in the intercooler can be provided at the lower end of the intercooler. A cooling water outlet can be at the... | 12/02/2008 |
| 7452255 | Outboard motor for small watercraft A casing of an outboard motor can be formed with an upper casing, a lower casing, and an extension casing interposed between the upper casing and the lower casing. Water guiding passages, which can be formed with jacket sections or the like, can extend along both in... | 11/18/2008 |
| 7448929 | Ship propulsion system with cooling systems for the stator and rotor of the synchronous machine of the propulsion system Disclosed is a ship propulsion system comprising a synchronous machine (6) with an especially superconducting rotor winding that is to be subjected to intense cooling and a normally conducting stator winding (11) which is to be cooled. The stator windi... | 11/11/2008 |
| 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 device provides for a protective electric current to form from the elec... | 10/21/2008 |
| 7438614 | Cooling system for outboard motor A boat has an outboard motor mounted to a hull and a remotely mounted cooling air system. The outboard motor has a cowling housing an engine. The cooling air system receives air from within the hull and includes a ventilating fan box. The ventilating fan box may be ... | 10/21/2008 |
| 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 drainage connector, a drainage connector which preferable is mounted on a... | 10/21/2008 |
| 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 bonded to each other while sandwiching the electrode body therebetween. P... | 10/07/2008 |
| 7409930 | Water cooling device for outboard motor An outboard motor can have a case supported by a hull, an internal combustion engine supported on the upper end of the case, an oil pan formed in the case for storing lubricating oil for the internal combustion engine, and a cooling water jacket formed integrally wi... | 08/12/2008 |
| 7398745 | Apparatus and method for controlling the operation of a cooling system for a marine propulsion device 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... | 07/15/2008 |
| 7393253 | Cooling system for a marine propulsion device A conduit is configured to facilitate the assembly of a gear case to a driveshaft housing of a sterndrive marine propulsion device while maintaining the proper position of the conduit and assuring proper sealing when the gear case is attached to the driveshaft housi... | 07/01/2008 |
| 7377251 | V-engine having at least one turbocharger The present invention relates to a V-engine (1) having at least one turbocharger (2) and at least two cylinders (4), which is constructed as a diesel engine and as an outboard motor for aquatic vehicles and wherein an exhaust gas system (6 | 05/27/2008 |
| 7328740 | Heat exchanger with beveled header A multiple-pass heat exchanger having opposing headers with beveled end walls, one header having nozzles on opposite sides of a separator wall for delivering heat exchange fluid at one temperature from one or more nozzles on one side of the separator wall, the heat ... | 02/12/2008 |
| 7329162 | Cooling system for a marine propulsion device A cooling system for a marine vessel is configured to allow all cooling water to flow out of the cooling circuit naturally and under the influence of gravity when the marine vessel is removed from the body of water. All conduits of the cooling circuit are sloped dow... | 02/12/2008 |
| 7318396 | Cooling system for a marine propulsion engine A cooling system for a marine engine incorporates first and second thermally responsive valves which are responsive to increases in temperature above first and second temperature thresholds, respectively. The two thermally responsive valves are configured in serial ... | 01/15/2008 |
| 7247067 | Intake manifold for small watercraft A watercraft has an engine that has an intake system, an exhaust system, and a cooling system. An intake manifold is positioned above a cooled exhaust pipe. This position of the intake manifold with relation to the cooled exhaust pipe allows the intake manifold to m... | 07/24/2007 |
| 7222595 | Internal combustion engine for vehicle A valve system of an internal combustion engine mounted on a vehicle comprises a valve characteristic varying mechanism for controlling valve operation characteristics of an engine valve, and an electric motor of the valve characteristic varying mechanism is dispose... | 05/29/2007 |
| 7220155 | Integrated engine-jet pump drive unit for marine application A watercraft includes a shell, a ride plate, an internal combustion engine, and a jet pump. The shell defines a tunnel that extends forwardly from the transom and is defined laterally by the shell. The tunnel is open at its bottom The ride plate mounts to the shell ... | 05/22/2007 |
| 7217168 | Engine exhaust system An engine exhaust system has an exhaust gas passage and a coolant passage. The coolant passage surrounds at least a portion of the exhaust passage. The system is also equipped with an exhaust conduit, which mixes exhaust gases and coolant and then releases the mixtu... | 05/15/2007 |
| 7201213 | 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 path of the coolant flow. The orifices are sufficiently large so as n... | 04/10/2007 |
| 7198528 | Motor unit for a ship An arrangement of a ship's propulsion unit includes a motor unit with a motor housing arranged in the water. A motor and related controls are provided in the motor housing. A propeller is arranged at an end of a motor shaft. The motor unit includes an electrical mot... | 04/03/2007 |
| 7189126 | Ship's propulsion arrangement and method The invention relates to a ship's propulsion and steering arrangement surrounded by water comprising an electric motor in a chamber, a propeller shaft associated with the electric motor having a propeller fitted outside the chamber, and a pressure source for pressur... | 03/13/2007 |
| 7128027 | Cooling system for an outboard motor A cooling system of an outboard motor provides back and forth flow of water from one side of an exhaust passage to the opposite side in order to avoid the creation of stagnant pools of water within which minerals and debris can collect. This result is accomplished b... | 10/31/2006 |
| 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 coolant passage extending across the components, and an anode for corro... | 10/17/2006 |
| 7118434 | Outboard drive for boats Outboard drive unit for boats, including an underwater housing (6), in which two propeller shafts (7, 8) are mounted and are driven via a first bevel gearing (19, 20, 21) enclosed in the underwater housing, and a second bevel gearing (13, 14,... | 10/10/2006 |
| 7114469 | Cooling system for a marine propulsion engine A cooling system for a marine engine divides a flow of cooling water into first and second streams downstream of a pump. The first stream flows through a first cooling system which is controlled by a pressure sensitive valve. The second stream flows through a second... | 10/03/2006 |
| 7086915 | Lubricating structure for outboard motors There is provided a lubricating structure for an outboard motor, which can secure a sufficiently large cross-sectional area for a main oil gallery while preventing an increase in the width of an engine thereof. A water-cooled four-cycle six-cylinder V-type engine ha... | 08/08/2006 |
| 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 substantially independent. Cooling water from a cooling water pump is suppl... | 06/06/2006 |
| 7044194 | Heat exchanger with beveled header A header for a heat exchanger, the header having a beveled closed end portion. ... | 05/16/2006 |
| 7029346 | Vertical engine and outboard engine system A base member mounted to a side of a cylinder block is formed with an inlet-side oil supply passage for supplying an oil to an oil filter, and an outlet-side oil supply passage for discharging the oil from the oil filter. As a result, it is unnecessary to increase t... | 04/18/2006 |
| 7017532 | Engine and personal watercraft An engine for a personal watercraft uses an open-looped cooling system and comprises a cylinder block having a water jacket within which cooling water flows, and a piston that reciprocates within the cylinder block, and a dimension of the water jacket in a reciproca... | 03/28/2006 |
