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| Number | Title | Issue Date |
| 8113894 | Outboard engine unit Exhaust passage system in an outboard engine unit includes: an engine-side exhaust pipe; a downstream exhaust pipe for directing exhaust gas downstream from the engine-side exhaust pipe, a lower end portion of the engine-side exhaust pipe and an upper end portion of... | 02/14/2012 |
| 8070542 | Engine exhaust bypass system for ocean vessel A primary exhaust bypass for a water-borne vessel having a seat member and a closure member coupled to the seat member, wherein the seat and closure members are configured to seal against exhaust leakage in the closed position and to allow exhaust leakage in the ope... | 12/06/2011 |
| 8062084 | Outboard motor An outboard motor includes an engine and an exhaust pipe. The engine has a crank case, a cylinder body, and a cylinder head aligned along the front-rear direction of the outboard motor, and arranged to support a crankshaft so as to extend along an up-down direction.... | 11/22/2011 |
| 7803026 | Marine engine exhaust system A marine engine exhaust system is provided. One exemplary embodiment of the system includes first and second manifolds. A first gas is transferred through a first conduit from the first manifold and is isolated from cooling water through at least a portion of the fi... | 09/28/2010 |
| 7704111 | Exhaust system of outboard motor An outboard motor includes a multi-cylinder engine which includes cylinders longitudinally oriented and vertically paralleled in a cylinder block, a cylinder head arranged at a rearward position of the cylinder blocks, and a crankcase arranged at a forward position ... | 04/27/2010 |
| 7641527 | Marine outboard engine exhaust system A marine outboard engine has an upper motor cover, a lower cover, an engine, a driveshaft, a gear case, a rotor shaft, and a bladed rotor. First and second exhaust housings are disposed in the lower cover below the engine. The second exhaust housing at least partial... | 01/05/2010 |
| 7621792 | Outboard motor An outboard motor has a construction in which the area of an exhaust passage can be secured easily and exhaust noise is less likely to escape into the air, allowing the exhaust noise to be lowered. The outboard motor includes a lower case, a propeller shaft rotatabl... | 11/24/2009 |
| 7556548 | Exhaust device for outboard motor An exhaust device for an outboard motor includes an engine having a plurality of cylinders, a first expansion chamber case for collecting exhaust from a first part of the plurality of cylinders and a second expansion chamber case for collecting therein exhaust from ... | 07/07/2009 |
| 7476136 | Exhaust valve for two-stroke engine A two-stroke internal combustion engine has two cylinders each having an exhaust port. Two exhaust conduits are connected to the two exhaust ports. A passage is provided between the two conduits to fluidly communicate the two together. An actuator moves a valve to o... | 01/13/2009 |
| 7438615 | Outboard drive for boats Outboard drive for boats, including a gear housing, an underwater housing connected rotatably to the gear housing, and a mounting element arranged between the gear housing and the underwater housing for mounting the drive in a boat hull with the gear housing on the ... | 10/21/2008 |
| 7404748 | Exhaust system An exhaust system is disclosed that has pipes and a housing, through which exhaust fumes of an internal combustion engine flow. The exhaust fumes generate a condensate, at least in part and/or in certain areas. To prevent the corrosion of sheet metal by the condensa... | 07/29/2008 |
| 7390232 | Exhaust system for a marine engine An exhaust system for a marine propulsion system includes first through fifth exhaust conduit members, including a pair of serially connected marine exhaust elbows laterally spanning the engine. ... | 06/24/2008 |
| 7387555 | Apparatus and method for boat engine exhaust injection system An apparatus and method for injecting a boat engine's exhaust gasses into the boat propeller's propwash, aft of the propeller. The apparatus comprises piping which injects the boat engine's exhaust gasses into the propwash of the boat, aft of the propeller. This res... | 06/17/2008 |
| 7367857 | Exhaust structure for small watercraft To provide an exhaust structure for a small watercraft that can cool exhaust gas, reduce the size and weight, and thereby cost of a backflow prevention chamber. An exhaust structure for a small watercraft is configured to be able to cool exhaust gas in the course of... | 05/06/2008 |
| 7361068 | Seal pressure vent system for a waterjet apparatus A seal pressure vent system for a waterjet propulsion apparatus including a water intake section and a pumping unit. The pumping unit is designed such that in operation the seal pressure vent system provides a fluidic path for the flow of high pressure water away fr... | 04/22/2008 |
| 7361282 | Separator of floating components A buoyant component separator is disclosed for removing at least some floating contaminants from fluids. The component separator may be used with a marine engine exhaust system to reduce particulate matter and unburned fuel contained in liquid coolant before it is j... | 04/22/2008 |
| 7343906 | Water jet propulsion boat A watercraft can include an engine having a crankshaft with its output end extending rearward of a crankcase and a supercharger for compressing air feeding it to the engine. The supercharger can be located forward of a rear end of the crankcase. An exhaust pipe, des... | 03/18/2008 |
| 7334402 | Exhaust system with catalytic converter and motorcycle using the same A catalytic converter-incorporated exhaust system is provided, which includes an exhaust tube through which exhaust gases emitted from an engine flow, and a muffler fluidly connected with a downstream end of the exhaust tube. This muffler includes a muffler casing h... | 02/26/2008 |
| 7325652 | Bumper/muffler assembly A bumper/muffler assembly is provided comprising a bumper; and a muffler having an outer shell. The outer shell may be formed from a non-high impact resistant material, such as a thin metal or a composite material. The muffler may comprise a separate element from th... | 02/05/2008 |
| 7322866 | Outboard engine An outboard engine comprises a power source inside a power source compartment. The power source room is formed by an upper cover and an undercover. A buoyant body is disposed outside the power source compartment, and has a lower surface wall in a position that is lo... | 01/29/2008 |
| 7320378 | Exhaust control apparatus for a vehicle, and vehicle including same An exhaust control apparatus for a motorcycle includes an exhaust collection pipe, which collects and combines exhaust gas from a plurality of exhaust pipes, and an exhaust valve. The exhaust valve is operatively attached to the collection pipe and controls flow of ... | 01/22/2008 |
| 7314397 | Standby generator An exhaust system for an engine that produces an exhaust gas during operation. The exhaust system includes a manifold in fluid communication with the engine to receive the exhaust gas and a conduit extending from the manifold in a first direction. An outlet manifold... | 01/01/2008 |
| 7314044 | Marine emissions control A marine engine has an exhaust system including a catalyst cooled by a flow of coolant, a coolant injector that injects coolant into the flow of exhaust at a point downstream of the catalyst, and a sensor arranged to sense a characteristic of the flow of exhaust, su... | 01/01/2008 |
| 7306500 | Device for redirecting boat motor exhaust The present invention is a device which redirects motor exhaust fumes a distance away from a boat. This device can be applied to a boat's propulsion motor or to its generator for purposes of preventing carbon monoxide poisoning of a boat's passengers. The device inc... | 12/11/2007 |
| 7303209 | Transportation riders web restrain system A transportation riders protection system has a web (22) including a head protection device (21) deployed from a case (20) by two cable pullers (50) and (90) protecting rider (80) from collision impact. An automatic sensor (... | 12/04/2007 |
| 7294030 | Outboard motor having seal structure for exhaust release pipe An outboard motor includes an elastic seal lid attached to an under cover to form a hermetic seal between the under cover and an exhaust release pipe while closing an opening of the under cover from which an outlet portion of the exhaust release pipe projects outwar... | 11/13/2007 |
| 7293602 | Fin tube assembly for heat exchanger and method A fin and tube assembly for use in a heat exchanger comprising a carbon steel tube, a carbon steel fin, and an external brazing compound comprising a material selected from the group consisting of nickel, chrome, copper, aluminum, zinc, and graphite brazed to the tu... | 11/13/2007 |
| 7290495 | Personal watercraft A personal watercraft including a body including a hull and a deck covering the hull from above; a water jet pump configured to pressurize and accelerate water sucked from a water intake provided on a bottom surface of the hull and eject the water rearward; an engin... | 11/06/2007 |
| 7287373 | Exhaust pipe collecting structure of multiple cylinder engine and personal watercraft An exhaust pipe collecting structure for a multi-cylinder engine unit having multiple cylinders including a first exhaust pipe group and a second exhaust pipe group, each of which has two exhaust pipes selected from four exhaust pipes respectively connected to the f... | 10/30/2007 |
| 7288010 | Personal watercraft A personal watercraft including a body including a hull and a deck covering the hull from above, an engine accommodated in an interior of the body, and an exhaust system that is accommodated in the interior of the body. The exhaust system includes an upstream muffle... | 10/30/2007 |
| 7258710 | Maritime emissions control system An Advanced Maritime Emissions Control System (AMECS) includes several Exhaust Intake Bonnets (EIBs) of different size and/or shape, an Emissions Capture System (ECS), and an Advanced Maritime Emissions Control Unit (AMECU) mounted on an Unpowered Seagoing Barge (US... | 08/21/2007 |
| 7255617 | Personal watercraft incorporating capsize-recovery facilitating structure, and method of using same A personal watercraft can be rotated in a correct direction of rotation when the personal watercraft has been overturned, and can thereby be restored to a normal, upright position. The personal watercraft includes a vessel body, an engine, and an exhaust system. The... | 08/14/2007 |
| 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 |
| 7247068 | Boat propulsion unit A propulsion unit for a boat has a cooling water intake structure through which entry of cooling water is obstructed when the boat is towed while the impeller is not turned, and through which sufficient cooling water enters when the impeller is turned. The propulsio... | 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 |
| 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 lubricant pan (e.g., oil pan) is disposed below the engine to accumulat... | 05/29/2007 |
| 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 |
| 7195528 | Outboard motor exhaust system In an outboard motor exhaust system having a first exhaust gas passage discharging engine exhaust gas into water and a shift actuator operating a shift mechanism to establish one from among a forward position, a reverse position and a neutral position, there are pro... | 03/27/2007 |
| 7186157 | Turning propeller drive for a boat A rotatable propeller drive (1) for a boat, where the propeller drive (1) includes an upper fixing plate (4) adapted for rotationally fixed attachment to the hull bottom (2) of the boat. A lower underwater housing (6) is provided o... | 03/06/2007 |
| 7182659 | Exhaust device of boat An open/close valve can decrease the exhaust resistance as much as possible in a usual operation. An open/close valve includes a valve casing and a valve element that is housed in the valve casing in a vertically movable manner. The valve casing includes a cylindric... | 02/27/2007 |
