| Entries |
| Document | Title | Date |
|---|
| 20090130929 | Water cooled fuel reservoir for a carburetor of a marine propulsion device - A water cooled fuel reservoir is provided for a carbureted engine. Water is drawn by a pump from a body of water and caused to flow to a water jacket surrounding a fuel reservoir of the carburetor. The fuel reservoir, or float bowl, stores a quantity of liquid fuel which is cooled by thermal contact with the water in a water jacket of the water reservoir. | 05-21-2009 |
| 20100112877 | SYSTEM AND METHOD FOR COOLING A MARINE OUTBOARD ENGINE - A marine outboard engine is described, having an engine disposed in a cowling. The engine has a cooling system. A first pump is disposed inside the cowling below a water line of the outboard engine. The first pump is continuously driven by the engine during operation of the engine. The first pump is a centrifugal pump having an inlet in fluid communication with an exterior of the marine outboard engine below the water line and an outlet in fluid communication with the cooling system. A second pump is disposed inside the cowling below the water line. The second pump has an inlet in fluid communication with an exterior of the marine outboard engine below the water line and an outlet in fluid communication with the cooling system. An electric motor is operatively connected to the second pump for selectively driving the second pump during operation of the engine. | 05-06-2010 |
| 20090197488 | OUTBOARD MOTOR INTAKE PORT SYSTEM - An outboard motor intake port system includes an internal cover mounted, from the inside, on an engine cover to form an intake chamber between the internal cover and the engine cover. The internal cover is integrally provided with a bottom plate portion facing the inner face of an upper part of the engine cover, a front wall portion extending upward from a front edge of the bottom plate portion and connected to the inner face of the upper part of the engine cover, and a pair of tubular portions extending upward from the bottom plate portion. The pair of tubular portions are arranged side by side so water that has entered the intake chamber via an intake port passes through the tubular portions. A pair of drain holes for discharging water are formed in the engine cover and communicate with the left and right front parts of the intake chamber. | 08-06-2009 |
| 20110104966 | BOAT PROPELLING APPARATUS AND BOAT - A boat propelling apparatus is compact and capable of making an adjustment on its engine output characteristic. The boat propelling apparatus includes an engine, a surge tank and an intake manifold. The intake manifold includes therein an internal space for air to flow from the surge tank, and air intake passages branching from the internal space. The intake manifold includes recesses and a boss arranged to fit an extension member to define extension passages inside the internal space. | 05-05-2011 |
| 20120156949 | SYSTEM, METHOD, AND ARTICLE OF MANUFACTURE FOR COOLING AND FILTERING ENGINE INTAKE AIR - Various methods and systems are provided for an air induction system for an engine. In one example, the air induction system includes an intake conduit and an assembly coupled to the intake conduit which includes a water spray for removing particulates from, and for cooling, intake air flowing through the water spray. | 06-21-2012 |
| 20120214370 | INTAKE DEVICE OF OUTBOARD MOTOR - In an intake device of an outboard motor that supplies outside air taken in through an outside air intake port to a throttle body to get the outside air sucked, an intake chamber communicating with the outside air intake port and the throttle body is isolated from an engine room, and is disposed above an engine unit in the engine room. | 08-23-2012 |
| 20130109256 | OUTBOARD ENGINE UNIT | 05-02-2013 |
| 20130273793 | MARINE PROPULSION SYSTEMS AND INTAKE AIR SYSTEMS FOR MARINE PROPULSION SYSTEMS - A marine propulsion system is for propelling a marine vessel in water. The system comprises a marine vessel and an outboard motor that is coupled to the marine vessel. The outboard motor has a first inlet that receives intake air for combustion. A second inlet is located on the hull of the marine vessel and a conduit conveys the intake air from the second inlet on the marine vessel to the first inlet on the outboard motor. | 10-17-2013 |
| 20130280970 | MARINE PROPULSION SYSTEMS, INTAKE AIR SYSTEMS FOR MARINE PROPULSION SYSTEMS, AND MARINE PROPULSION SYSTEMS HAVING EXHAUST GAS RELIEF OUTLET - A marine propulsion system is for propelling a marine vessel in water. The system comprises a marine vessel and an outboard motor that is coupled to the marine vessel. The outboard motor has a first inlet that receives intake air for combustion. A second inlet is located on the hull of the marine vessel and a conduit conveys the intake air from the second inlet on the marine vessel to the first inlet on the outboard motor. The system comprises an outboard motor that is coupled to a marine vessel, and that comprises an exhaust gas relief outlet that is located above the water when the outboard motor is at idle speed. A conduit conveys exhaust gas from the exhaust gas relief outlet to a discharge outlet located on the marine vessel. | 10-24-2013 |
| 20140141665 | OUTBOARD MOTOR - An outboard motor configured so that an engine is covered by an engine cover, an intake opening is provided to both sides of the engine cover, and air drawn into the engine cover from the intake opening is introduced to a throttle body. A discharging/interference-type muffler is provided partway along an intake channel for guiding air from the intake opening to the throttle body. The discharging/interference-type muffler is provided vertically in the interior of the engine cover, and the interior of the discharging/interference-type muffler is divided in two in the vertical direction. | 05-22-2014 |
| 20140370768 | INTAKE STRUCTURE OF OUTBOARD MOTOR - An intake structure of an outboard motor supplying intake air to an internal combustion engine for the outboard motor has an engine cover covering the internal combustion engine for the outboard motor, an inner cover disposed on an outside of the engine cover, and a top cover covering the inner cover. The inner cover and the top cover form an intake duct supplying intake air to the internal combustion engine for the outboard motor. | 12-18-2014 |
| 20150093948 | INTAKE APPARATUS OF ENGINE FOR OUTBOARD MOTOR - There is provided an intake apparatus of an engine for an outboard motor. An intake manifold, a throttle body and an intake silencer box are arranged at one of right and left sides of an engine block which is configured such that an axial direction of a cylinder coincides with a front and rear direction of the outboard motor. An intake duct communicating with an intake introduction port provided at an upper part of an engine cover is coupled to an upstream end of the intake silencer box. A first water separation part is arranged between the intake introduction port and the intake duct. A second water separation part is provided below a duct part of the intake duct. The second water separation part is formed by providing a drain hole at a bottom part of a resonator chamber part communicating with the duct part to reduce an intake noise. | 04-02-2015 |
| 20150298781 | AIR INTAKE STRUCTURE FOR OUTBOARD MOTOR - An air intake structure for an outboard engine wherein air which is taken in from an air intake opening provided in an engine cover for covering the upper part of the outboard engine is supplied to and sucked into a throttle body. The engine cover has an air intake opening which is open at the front of the outboard engine in the forward movement direction and a lid member which can open and close the air intake opening. A space which connects the air intake opening and the throttle body is provided separated from an engine room. | 10-22-2015 |
| 20160107738 | OUTBOARD MOTOR - [Problem] To perform an assembling operation easily while attaining improvement in engine efficiency. | 04-21-2016 |
| 20160186677 | OUTBOARD MOTOR - An outboard motor has a vertical-shaft vee engine unit provided with a crankshaft arranged approximately vertically and left and right cylinder units aligned to be open backward in a “V” shape as seen in a plan view. A surge tank and an air intake system unit provided with an intake pipe to connect the surge tank to intake ports of the left and right cylinder heads are arranged in a center of a width direction of a rear side of the engine unit. In addition, an electronic control unit is arranged in an approximate center of a height direction in the right side of the air intake system unit. Furthermore, a high-pressure fuel filter is arranged in an approximate center of a height direction in the left side of the air intake system unit. Moreover, a vapor separator embedded with a high-pressure fuel pump is arranged under the high-pressure fuel filter. | 06-30-2016 |
| 20090203273 | 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 water delivery feature such as dump ports, the pickup port being open to receive cooling water into the distribution tube assembly when mounted on a marine propulsion system outdrive unit and the water delivery feature positioned to face the drive unit for delivering cooling water from the distribution tube assembly to the outdrive unit. A no drill bracket attached to the distribution tube assembly attaches to the lift ram assembly shaft of the outdrive unit, and an upper mounting bracket that is attached to the distribution tube assembly attaches to the outdrive unit. | 08-13-2009 |
| 20090215341 | OUTBOARD MOTOR - An outboard motor includes an engine, and a top cowling and a bottom cowling that are arranged to cover the engine. A flow-joining pipe is connected to each exhaust port of a plurality of cylinders of the engine. A first exhaust pipe, a second exhaust pipe, and a third exhaust pipe are connected to the flow-joining pipe in sequence. The flow-joining pipe and the first exhaust pipe are connected generally at the same height as a bottommost of the cylinders of the engine. The third exhaust pipe is disposed above a topmost of the cylinders of the engine. A catalyst is disposed in a connecting portion between the first exhaust pipe and the second exhaust pipe so as to be housed in an upper end portion of the first exhaust pipe and in a lower end portion of the second exhaust pipe. The outboard motor is thus able to prevent water from adhering to a catalyst while avoiding any increase in size. | 08-27-2009 |
| 20090318039 | Boat engine cooling system - The boat engine cooling system provides cooling of the engine of a boat or other nautical vehicle through both chemical coolant, such as an antifreeze solution, and environmental water; i.e., the water the vehicle is passing through. In use, heated engine coolant is expelled by the engine and passes through a coolant inlet port formed through a hollow tank, where it is transported through a coolant pipe to the engine. Further, water from the environment (i.e., the lake, ocean or other body of water the vehicle is passing through) is injected into a cooling reservoir in the hollow tank through a water inlet port. The engine coolant passing through a central portion of the coolant pipe is cooled by the water in the cooling reservoir prior to circulating back through the engine. | 12-24-2009 |
| 20100144222 | 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 cooling water outlet, from the cooling water outlet, is installed at an angle from 16° to 30° with respect to the horizontal plane of a hull, and has a vertical height, which is within a range from 0.2 times to 0.6 times the diameter of the cooling water outlet in a vertical direction of the hull, and a horizontal width, which is within a range from 0.5 times to 1.3 times the diameter of the cooling water outlet in a horizontal direction of the hull. Thereby, the flow control mechanism restores the distribution of wake flow that encounters a propeller so that the distribution of the wake flow is symmetrical around the central axis of the hull, and reduces the generation of a cavity. Thus, the vibration performance of the ship is improved, and the propulsive efficiency of the ship is also improved. | 06-10-2010 |
| 20100240268 | CONTROLLING EXHAUST TEMPERATURES - An exhaust manifold cooling jacket has internal passages for the circulation of liquid coolant and encloses an exhaust manifold such that a gap is created between the exhaust manifold and cooling jacket. Flowing coolant through the jacket regulates outer jacket temperature while enabling high intra-manifold exhaust gas temperatures for thorough intra-manifold combustion and improved emissions. A liquid-cooled exhaust system includes a turbocharger disposed between manifold and elbow, with liquid coolant flowing from manifold to elbow through the turbocharger. Another liquid-cooled exhaust manifold contains an internal exhaust combustion catalyst wrapped in an insulating blanket. In some marine applications, seawater or fresh water coolant is discharged into the exhaust gas stream at an attached exhaust elbow. | 09-23-2010 |
| 20110195623 | Cooling Systems and Methods for Hybrid Marine Propulsion Systems - Cooling systems and methods for hybrid marine propulsion systems are disclosed. A first cooling circuit is arranged to convey raw cooling water through an internal combustion engine and to at least one drive component of a drive unit for the marine propulsion system. A second control circuit is arranged to convey raw cooling water through an electric motor. The system is arranged such that raw cooling water in the second cooling circuit is conveyed to the first cooling circuit to cool the drive component without cooling the component of the internal combustion engine. | 08-11-2011 |
| 20120196495 | RETAINING STRUCTURE FOR HONEYCOMB STRUCTURE AND MARINE PROPULSION DEVICE - A retaining structure for a honeycomb structure includes a honeycomb structure, a retainer mat, and a housing. The honeycomb structure is a member made of a ceramic material. The retainer mat is in contact with the honeycomb structure and directly retains the honeycomb structure. The housing is in contact with the retainer mat and directly retains the retainer mat. The housing is made of aluminum. The housing includes an inner wall, an outer wall, and a coolant passage. The inner wall is in contact with the retainer mat. The coolant passage is located between the inner wall and the outer wall. An inflow port of the coolant passage is located at one end of the housing. A discharge port of the coolant passage is located at the other end of the housing. | 08-02-2012 |
| 20120295502 | OUTBOARD MOTOR - An outboard motor includes an engine, an exhaust guide, and a catalyst. The engine includes a cylinder and crankshaft. The crankshaft is disposed along a vertical direction. The exhaust guide is arranged to support the engine from below. The catalyst is disposed in an interior of the engine. The engine includes a cylinder body. The cylinder body includes a housing portion arranged to house the catalyst. The cylinder body includes a first exhaust passage that includes an interior of the housing portion. The catalyst is inserted into the housing portion from below and is sandwiched from above and below by the housing portion and the exhaust guide. | 11-22-2012 |
| 20130157532 | OUTBOARD MOTOR AND WATERCRAFT INCLUDING THE SAME - An outboard motor includes an engine, a water intake opening arranged to suck in water, and a water supply path arranged to supply the water sucked in through the water intake opening to the engine. The engine includes a water path arranged to cause the water supplied from the water supply path to flow in a water jacket of a cylinder head, a water jacket of an exhaust pipe, and a water jacket of a cylinder block in this order. | 06-20-2013 |
| 20080299848 | Arrangement for and Method of Providing Cooling Energy to a Cooling Medium Circuit of a Marine Vessel - Arrangement for providing cooling energy to a cooling medium circuit of a marine vessel having a storage of liquefied gas, the arrangement having a gas feeding system being provided with gas evaporation/heating apparatus. The gas evaporation/heating apparatus is arranged in heat transfer connection with the cooling medium circuit of the vessel through an intermediate flow circuit. | 12-04-2008 |
| 20090239426 | FUEL SYSTEM FOR GAS DRIVEN VESSEL - The invention relates to fuel system for gas driven piston engine in a marine vessel, which gas is stored in at least one fuel storage tank in the vessel as liquefied gas. The fuel feeding system comprises a separate fuel feed tank in which the gas is in liquid phase and at elevated pressure. The gas is also in liquid phase in the fuel storage tank, in which, however, prevails only the hydrostatic pressure caused by the liquid gas. | 09-24-2009 |
| 20090253318 | MARINE VESSEL - A marine vessel operated with gaseous fuel having at least one gas powered engine, which vessel is provided with a fuel tank arrangement in which the fuel is stored in liquid phase, in which vessel the engine is positioned in an engine room which is provided with an engine room casing extending from the engine room to the exterior of the vessel. The fuel tank arrangement is arranged in vicinity of the engine room casing. | 10-08-2009 |
| 20090298364 | FUEL SUPPLY SYSTEM FOR BOAT AND OUTBOARD MOTOR - A fuel supply system for a boat includes a vapor separator tank connected to a fuel tank mounted on a hull of the boat to contain fuel therein, an injector to supply fuel to an engine, and a high-pressure fuel pump to supply fuel that is contained in the vapor separator tank to the injector. The high-pressure fuel pump includes a pump main portion having a fuel path and a pump driving section that are separated from the fuel path of the pump main portion. The fuel supply system minimizes deterioration in engine startability. | 12-03-2009 |
| 20090298365 | FUEL SUPPLY SYSTEM FOR BOAT AND OUTBOARD MOTOR - A fuel supply system for a boat includes a vapor separator tank arranged to be connected to a fuel tank mounted on a hull of the boat and arranged to contain fuel therein, an injector arranged to supply fuel to an engine, a high-pressure fuel pump arranged to supply the fuel contained in the vapor separator tank to the injector, and a throttle body including a throttle valve arranged to adjust a flow rate of air supplied to the engine. The vapor separator tank is disposed adjacent to the throttle body. The fuel supply system minimizes deterioration in engine startability. | 12-03-2009 |
| 20090325432 | FUEL SUPPLY SYSTEM FOR BOAT AND OUTBOARD MOTOR - A fuel supply system for a boat, which prevents fuel piping from becoming complicated, includes a vapor separator unit connected to a fuel tank that is mounted on a hull and holds fuel supplied to an engine section, a low-pressure pump arranged to discharge the fuel reserved in the fuel tank into the vapor separator unit, and a mounting hole for a valve, a fuel passage section, and a pipe section (relief path) that return the fuel discharged by the low-pressure pump to the suction opening section side of the low-pressure pump when a tank section is filled with a predetermined amount of fuel. The mounting hole for the valve, the fuel passage section, and the pipe section (relief path) are integral with the vapor separator unit. | 12-31-2009 |
| 20100068954 | FUEL SUPPLY SYSTEM FOR OUTBOARD MOTOR AND OUTBOARD MOTOR - A fuel supply system includes a fuel supply channel and a joint unit. The joint unit includes first and second joint members and a sealing member. The first and second joint members are arranged to be connectable to and separable from each other. The sealing member is arranged to seal a gap between the first and second joint members in a state in which the first and second joint members are connected. The first joint member includes a first flow channel, a first valve, and a first fitting portion. The second joint member includes a second flow channel, a second valve, and a second fitting portion. The first valve has a first pressing end and a first valve body. The second valve has a second pressing end and a second valve body. The first and second fitting portions are arranged to fit each other before the first and second pressing ends come into contact with the second and first joint members, respectively, when the first and second joint members are connected. The sealing member is held on the first or second joint member so as to seal a gap between the first and second fitting portions before the first and second pressing ends come into contact with the second and first joint members, respectively, when the first and second joint members are connected. | 03-18-2010 |
| 20100273370 | MARINE FUEL DELIVERY SYSTEM WITH PLASTIC HOUSING AND METHOD OF CONSTRUCTION THEREOF - A marine fuel delivery system and method of construction thereof provides at least one of a fuel filter housing and a fuel vapor separator housing with a lower support cap extending laterally therefrom, with the lower support cap being formed as a single piece of plastic material with the fuel filter housing and/or fuel vapor separator housing. In addition, the system includes a heat shield extending upwardly from the lower support cap. The fuel filter housing and/or fuel vapor separator housing; the lower support cap and the heat shield are constructed as a monolithic piece of thermoset plastic that does not melt when directly exposed to a 650° C. flame for 2½ minutes. | 10-28-2010 |
| 20120238161 | FLOATING STRUCTURE WITH FUEL TANK FOR GAS FUEL - Disclosed herein is a floating structure with a fuel gas tank for storing gas fuel to be fed to a dual fuel propulsion system under a cabin area. According to the present invention, there is provided a floating structure with a fuel gas tank storing gaseous fuel used as fuel while floating at sea, including: a cabin area disposed on an upper deck of the floating structure; a fuel gas tank mounted under the cabin area in the hull of the floating structure; and a blocking member mounted between the cabin area and the fuel gas tank to secure safety of the cabin area. | 09-20-2012 |
| 20120244762 | FLOATING STRUCTURE WITH FUEL TANK FOR GAS FUEL - Disclosed herein is a floating structure with a fuel gas tank storing a gaseous fuel used as fuel in a dual fuel propulsion system disposed under a cargo space. According to the present invention, there is provided a floating structure with a fuel gas tank storing a gaseous fuel used as fuel and used while floating at sea, including: a fuel gas tank disposed in the hull of the floating structure; and a cargo space disposed on the top of the fuel gas tank on the upper deck of the floating structure. | 09-27-2012 |
| 20130078878 | MARINE FUEL SYSTEM WITH SPILL CONTROL FEATURE - A spill resistant fuel supply system ( | 03-28-2013 |
| 20130137318 | FLOATING STRUCTURE HAVING AN UPPER DECK FUEL TANK - A floating structure with an on-deck fuel tank that is surrounded by a cover is provided. In the floating structure, since the fuel tank is covered by the cover, the fuel tank is sealed without being exposed to air, thereby enhancing safety. The fuel tank is configured to store liquefied fuel gas to be used as fuel. The fuel tank is installed on a deck of the floating structure, and the exterior of the fuel tank is surrounded by a cover. | 05-30-2013 |
| 20130157533 | OUTBOARD MOTOR AND WATERCRAFT INCLUDING THE SAME - An outboard motor includes a left bank and a right bank. An exhaust port in each of the left bank and the right bank is arranged outward relative to a cylinder axis line in an outer motor width direction. A left exhaust pipe is arranged outward relative to a crankcase and the left bank in the outer motor width direction. A right exhaust pipe is arranged outward relative to the crankcase and the right bank in the outer motor width direction. A catalyst is located in each of the left and right exhaust pipes. | 06-20-2013 |
| 20130157534 | OUTBOARD MOTOR AND WATERCRAFT INCLUDING THE SAME - An outboard motor includes a V-shaped 4-cycle engine including fuel injection devices that directly inject fuel into combustion chambers. The engine includes a left intake path including a left path extending from an intake port in a left bank in an obliquely rearward and rightward direction, and a right intake path including a right path extending from an intake port in a right bank in an obliquely rearward and leftward direction. The left fuel injection device is located to the right of a cylinder axis line in the left bank. The right fuel injection device is located to the left of a cylinder axis line in the right bank. | 06-20-2013 |
| 20130178119 | FUEL SUPPLY SYSTEM OF OUTBOARD MOTOR - A fuel supply system of an outboard motor for supplying a fuel stored in a fuel tank to an intake port of an engine includes: a vapor separator which is disposed on one of left and right sides of the engine in terms of a traveling direction of a hull and to whose upper portion a vapor vent pipe having a tip open to an atmosphere is connected; and an in-line high-pressure fuel pump which is connected to the vapor separator via a fuel pipe and to whose upper portion an air vent pipe passing a position higher than the fuel pipe is connected, wherein the vapor vent pipe includes a folded portion formed so as to extend toward the other side out of the left and right sides of the engine and thereafter return to the one side. | 07-11-2013 |
| 20130178120 | FUEL SUPPLY SYSTEM OF OUTBOARD MOTOR - A fuel supply system of an outboard motor includes: a vapor separator which separates a fuel sent from a fuel tank by a low-pressure fuel pump into gas and liquid to release fuel vapor to an atmosphere; a fuel cooler which is disposed under the vapor separator to cool the fuel by cooling water passing through a cooling water pipe; a drain pipe connected to a side surface of the fuel cooler which faces downward while the outboard motor is tilted up; and an in-line high-pressure fuel pump connected in a middle of a fuel pipe connected to a side surface of the fuel cooler different from the side surface to which the drain pipe is connected. It is possible to easily and surely draw off the fuel in the fuel pipe while the outboard motor is tilted up. | 07-11-2013 |
| 20150323188 | ENCLOSED GAS FUEL DELIVERY SYSTEM - A gas fuel delivery system is disclosed. A gas fuel delivery system includes a gas fuel system and a gas ring. The gas fuel delivery system includes an enclosure surrounding the gas fuel system. The enclosure includes a ventilation system. The enclosure includes fuel pipes connecting the gas fuel system to a fuel source and to a gas ring. Each fuel pipe includes an outer conduit and an inner conduit, wherein the inner conduit is enclosed by the outer conduit. The inner conduit is in fluid communication with the gas fuel system. | 11-12-2015 |
| 20160096609 | FUEL GAS SUPPLY SYSTEM AND METHOD OF SHIP - Disclosed herein is arrangement of a fuel gas tank in a fuel gas supply system that supplies liquefied natural gas to an engine. In accordance with one aspect of the invention, a fuel gas supply system of a ship includes an engine generating driving force using fuel gas; and a fuel gas tank storing the fuel gas to be supplied to the engine, wherein the engine is disposed in an engine room placed at the stern of the ship and the fuel gas tank is disposed above the engine room. | 04-07-2016 |
| 20090176420 | OUTBOARD MOTOR - An outboard motor includes a transmission device disposed on a middle portion of a drive shaft driven by an engine. The transmission device includes a forward-reverse switching device housed in a transmission case. Lubricating oil for lubricating the forward-reverse switching device is stored in the transmission case. The transmission case has a drain hole arranged to discharge lubricating oil in the transmission case that is provided in a lower portion of a side wall and in a position in front of the drive shaft, and a drain bolt for opening or closing the drain hole. An exposed opening for exposing the drain hole is provided in an upper case that covers the transmission case. As a result, work efficiency in discharging or draining of lubricating oil is greatly improved without requiring dismantling of a main body of the outboard motor. | 07-09-2009 |
| 20090181585 | OUTBOARD MOTOR - An oil supply device includes an axial oil passage and an intersecting oil passage provided in a propeller shaft, an axial oil passage and an intersecting oil passage provided in a drive shaft, and an oil guide passage. The intersecting oil passages allow oil inside the axial oil passages to be spouted radially of the shaft by centrifugal force generated as the shafts rotate. The oil is then supplied via the oil guide passage to an intermediate speed reduction device. As a result, it is possible to sufficiently lubricate an intermediate speed reduction device mounted on a drive shaft through a simple and compact arrangement. | 07-16-2009 |
| 20100267298 | ENGINE FOR OUTBOARD MOTOR - An engine for an outboard motor includes an oil filter. A first oil passage has a communication duct disposed at a position lower than that of the oil filter and communicating with a crank chamber. The communication duct is closed by a drain valve that can be opened and closed manually. Opening the drain valve allows the oil accumulated in the first oil passage to flow down into the crank chamber through the communication duct. | 10-21-2010 |
| 20110021095 | CONTRA-ROTATING PROPELLER MARINE PROPULSION DEVICE - Lubricant oil ( | 01-27-2011 |
| 20110159753 | PERSONAL WATERCRAFT - A personal watercraft comprises an oil cooler including an oil cooling passage through which oil circulating inside an engine flows and a coolant passage through which coolant for cooling the oil in the oil cooling passage flows; a first oil passage through which the oil flowing toward the oil cooling passage flows; a second oil passage through which the oil flowing out from the oil cooling passage flows; a bypass passage connecting the first oil passage to the second oil passage so as to bypass the oil cooling passage; and a valve configured to open and close the bypass passage; wherein the valve opens the bypass passage when the temperature of the oil is lower than a predetermined value and closes the bypass passage when the temperature of the oil is not lower than the predetermined value. | 06-30-2011 |
| 20120028520 | SHIP DRIVE COMPRISING A DRIVE UNIT THAT CAN BE PIVOTED UNDER WATER - The invention concerns a ship drive ( | 02-02-2012 |
| 20120028521 | MARINE ENGINE LUBRICATION - Trunk piston marine engine lubrication, when the engine is fueled by heavy fuel oil, is effected by a composition comprising a major amount of an oil of lubricating viscosity containing at least 50 mass % of a Group II basestock, and respective minor amounts of an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent other than such a detergent having a basicity index of less than two and a degree of carbonation of 80% or greater and at least 1 mass % of a hydrocarbyl-substituted carboxylic acid, anhydride, ester or amide thereof. Asphaltene precipitation in the lubricant, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited. | 02-02-2012 |
| 20120028522 | MARINE ENGINE LUBRICATION - Trunk piston marine engine lubrication, when the engine is fueled by heavy fuel oil, is effected by a composition comprising a major amount of an oil of lubricating viscosity containing at least 50 mass % of a basestock containing greater than or equal to 90% saturates and less than or equal to 0.03% sulphur or a mixture thereof, and respective minor amounts of an over-based metal hydrocarbyl-substituted hydroxybenzoate detergent other than such a detergent having a basicity index of less than two and a degree of carbonation of 80% or greater and at least 1 mass % of a hydrocarbyl-substituted carboxylic acid, anhydride, ester or amide thereof. Asphaltene precipitation in the lubricant, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited. | 02-02-2012 |
| 20120034829 | MARINE ENGINE LUBRICATION - Trunk piston marine engine lubrication, when the engine is fueled by heavy fuel oil, is effected by a composition comprising a major amount of an oil of lubricating viscosity containing at least 50 mass % of a Group II basestock, and respective minor amounts of an overbased metal hydrocarbyl-substituted hydroxybenzoate detergent other than such a detergent having a basicity index of less than two and a degree of carbonation of 80% or greater and 5 to 500 mass %, based on the mass of the detergent, of an oil-soluble alkyl-substituted phenol other than a hindered phenol. Asphaltene precipitation in the lubricant, caused by the presence of contaminant heavy fuel oil, is prevented or inhibited. | 02-09-2012 |
| 20120190255 | WATER JET PROPULSION BOAT - A water jet propulsion boat includes a main chamber rib dividing the inside of an oil pan into a main chamber where an oil suction port of an oil suction tube is arranged, and an auxiliary chamber outside of the main chamber. The main chamber rib covers the oil suction port at least from the front side and from the left and right sides of the oil suction port. The main chamber rib projects upward from the floor of the oil pan. An opening through which oil passes is provided in the main chamber rib only rearward of a rear edge of the oil suction port. The main chamber and the auxiliary chamber communicate with each other through the opening. | 07-26-2012 |
| 20150133007 | OUTBOARD MOTOR - An outboard motor includes an engine including a crankshaft that is rotatable about a rotation axis extending in an up-down direction, and a crank chamber that houses the crankshaft. The outboard motor includes an oil pan including an oil retaining portion, a cooling water passage disposed along an outer wall surface of the oil retaining portion, an oil recovery passage extending downward from the crank chamber to lead lubricating oil inside the crank chamber to the inside of the oil retaining portion, and a guide member. The guide member includes a shielding portion disposed inside the oil recovery passage so as to be located over an opening of the oil retaining portion, and a guide hole disposed inside the oil recovery passage so as to be located over an inner wall surface of the oil retaining portion. The guide member is configured to guide lubricating oil to the guide hole by the shielding portion and allow lubricating oil to flow down to the inner wall surface of the oil retaining portion from the guide hole. | 05-14-2015 |
| 20150133008 | OUTBOARD MOTOR - An outboard motor includes an engine including a crankshaft that is rotatable about a rotation axis extending in an up-down direction, and a crank chamber that houses the crankshaft. The outboard motor includes an oil pan disposed under the engine to retain lubricating oil to be supplied to at least the crank chamber. The outboard motor includes an oil recovery passage and a first blowby gas passage separate from the oil recovery passage. The oil recovery passage extends downward from the crank chamber to the oil pan and is configured to lead lubricating oil inside the crank chamber to the inside of the oil pan. The first blowby gas passage extends downward from the crank chamber to the oil pan and is configured to lead a blowby gas inside the crank chamber to the inside of the oil pan. | 05-14-2015 |
| 20160001862 | OUTBOARD MOTOR AND OIL PAN UNIT FOR OUTBOARD MOTOR - An outboard motor includes an engine including a plurality of cylinders, a drive shaft, an oil pan portion provided below the engine and including an oil storage region, an oil pump configured to be driven by a drive portion of the drive shaft passing through the oil storage region and located in the oil storage region, and a supply path configured to supply oil from the oil pump to the engine. | 01-07-2016 |
| 20160032819 | Reciprocating Internal Combustion Engine - A reciprocating internal combustion engine includes at least one piston, which is operatively connected by two connecting rods having two crankshafts rotating in opposite directions and running parallel to each other, which crankshafts are oriented in an upright manner to a horizontal water line of a boat, and an internal combustion engine housing of the internal combustion engine is composed of at least a cylinder crank housing and a cylinder head, having inlet and outlet valves, and is bounded by an upper end face and a bottom end face. To optimize the internal combustion engine, a joint ventilation system has an oil separating device provided with an oil pre-separator and a main oil separator, via which, when operating the internal combustion engine, a mixture of oil and leaking gas, resulting in a crankcase of the cylinder crank housing, reaches, by way of a discharge line extending adjacent to the upper end face, the oil pre-separator, from where the mixture of oil and leaking gas is led into the main oil separator and there is separated into the components of oil and leaking gas. The oil flows into an oil pan connecting at the bottom end face and the leaking gas near the upper end face flows into an intake system of the internal combustion engine. | 02-04-2016 |
| 20190144093 | OUTBOARD MOTOR | 05-16-2019 |
| 20090163092 | COOLING SYSTEM FOR OUTBOARD MOTOR - A cooling system includes a coolant distributing device arranged to distribute coolant discharged from a water pump to both an engine and a transmission device. The coolant distributing device includes a coolant relay section, an inlet conduit member, an outlet conduit member, and a transmission cooling conduit member, and supplies a portion of the coolant discharged from the water pump to a highest portion of a water jacket of the transmission device, and discharges the water from a lowest portion of the water jacket. The cooling system effectively cools the transmission device with a simple construction facilitating assembly and maintenance. | 06-25-2009 |
| 20130065462 | OUTBOARD MOTOR - An outboard motor includes a cooling water passage that guides cooling water to cool an exhaust passage and a cylinder unit. A cooling water intake port draws external cooling water into the cooling water passage. A water pump draws cooling water into the cooling water intake port and supplies the cooling water to the cooling water passage. A thermostat is arranged in the cooling water passage downstream of the catalytic converter and the cylinder unit. A first bypass passage is connected to a first connecting section provided on the cooling water passage. The first connecting section is provided along the cooling water passage at a position farther downstream than the catalytic converter and farther upstream than the thermostat. | 03-14-2013 |
| 20090130928 | Cooling system for a turbocharged marine propulsion device - A cooling system for a marine engine having a turbocharger provides for the flow of coolant through heat emitting objects prior to flowing through a coolant jacket of the turbocharger itself. This avoids the potentially disadvantageous circumstance of directing cold water directly from a body of water through the cooling jacket of the turbocharger. Both open loop and closed loop versions of the invention are illustrated and described. | 05-21-2009 |
| 20090163093 | OUTBOARD MOTOR - A motor including an intake-side conduit member disposed outside a casing that makes a connection between a cooling water intake section of a water pump and an intake hole, and a cooling water relay section provided outside the casing. The cooling water relay section communicates with a cooling water supply passage in the casing. A discharge-side conduit member that is disposed outside the casing connects the cooling water relay section to a cooling water discharge section of the water pump. Additionally, the other end of a transmission cooling conduit member that is branched from the cooling water relay section is connected to a water jacket of the transmission. The conduit members are preferably flexible hose members, for example. Accordingly, this unique construction improves a cooling water piping layout around a water pump, a discharge performance of the water pump, and an assembly workability of a motor. | 06-25-2009 |
| 20130149920 | COOLING WATER PASSAGE STRUCTURE OF OUTBOARD MOTOR - An outboard motor has a driveshaft and a propeller shaft connected to each other while placing gears in between in a casing of a lower unit. A cooling water passage structure of the motor has main water intakes provided on the left and right of the casing, a cooling water passage which guides therethrough water taken up through the main water intakes to a cooling water pump, and sub water intakes disposed on the left and right of the pointed portion of the gear case provided to the casing to give an appearance of bullet in the front-back direction. The sub water intake on the left is allowed to communicate through a left cooling water passage with the main water intake on the left. The sub water intake on the right is allowed to communicate through a right cooling water passage with the main water intake on the right. | 06-13-2013 |
| 20140242858 | VESSEL PROPULSION APPARATUS AND VESSEL - A vessel propulsion apparatus includes an exhaust passage guiding an exhaust, discharged from combustion chambers into an exhaust collecting passage, to a catalyst housed in a catalyst housing passage, and a cooling water passage guiding cooling water. The cooling water passage includes an upstream water passage, guiding the cooling water taken into the interior of the vessel propulsion apparatus by a water pump, and a first and second parallel water passage connected in series to the upstream water passage and connected in parallel to each other. The cooling water passage supplies the cooling water from the upstream water passage to each of the first and second parallel water passages to cool the catalyst housing passage by the first parallel water passage disposed along the catalyst housing passage and cool the exhaust collecting passage by the second parallel water passage disposed along the exhaust collecting passage. | 08-28-2014 |
| 20140242859 | OUTBOARD MOTOR AND VESSEL - An outboard motor includes a cooling water passage including at least a portion disposed at a periphery of a catalyst and that guides cooling water that cools an exhaust passage, a vent hole disposed higher than the catalyst and that connects the interior of the cooling water passage to the exterior of the cooling water passage, and a restriction valve that allows a fluid to flow from the interior of the cooling water passage to the exterior of the cooling water passage via the vent hole and that restricts the flow of the fluid from the exterior of the cooling water passage to the interior of the cooling water passage via the vent hole. | 08-28-2014 |
| 20160129980 | OUTBOARD MOTOR AND VESSEL - An outboard motor includes a catalyst housing passage disposed inside the V-shaped line, a cooling water passage including at least a portion disposed at a periphery of a catalyst and that guides cooling water that cools an exhaust passage and a vent hole disposed higher than the catalyst and that connects the interior of the cooling water passage to the exterior of the cooling water passage. | 05-12-2016 |
| 20160129981 | LARGE OUTBOARD MOTOR FOR MARINE VESSEL APPLICATION AND RELATED METHODS OF MAKING AND OPERATING SAME - An outboard motor for a marine vessel application, and related methods of making and operating same, are disclosed herein. In at least one embodiment, the outboard motor includes a horizontal-crankshaft engine in an upper portion of the outboard motor, positioned substantially positioned above a trimming axis of the outboard motor. In at least another embodiment, first, second and third transmission devices are employed to transmit rotational power from the engine to one or more propellers at a lower portion of the outboard motor. In at least a further embodiment, the outboard motor is made to include a rigid interior assembly formed by the engine, multiple transmission devices, and a further structural component. In further embodiments, the outboard motor includes numerous cooling, exhaust, and/or oil system components, as well as other transmission features. | 05-12-2016 |
| 20080233816 | FLUSHING ASSEMBLY FOR OUTBOARD MOTOR - A flushing device that is used to remove salt water and other corrosive agents from the cooling system of an outboard motor. The flushing device includes an earmuff flushing accessory that is attached to the end of an elongate support member and is used to create sealed chambers that surround the end ports of the motor. The elongated member can either be directly coupled to the earmuff flushing accessory or coupled through an elbow extension member to allow for the operation of the device from various positions, including to the side, in front, or from behind the outboard motor. The device is configured so that the flushing liquid flows either directly from the elongated member or through a bent extension member into the earmuff flushing accessory, thereby eliminating the need for various separate components to control the flow of the liquid. The device, therefore, uses a simple design that is both inexpensive to manufacture and effective while eliminating potential sources of failure. | 09-25-2008 |
| 20080299849 | Methods And Apparatus For Flushing Marine Propulsion Units - An apparatus and method for flushing marine propulsion units are provided. In one embodiment, the apparatus comprises a basin with anterior, posterior, side walls and a base. The basin is made from a watertight material and has sufficient depth to partially submerge a marine propulsion unit in fluid. The submersion of the unit sufficient to ensure the inlet duct of the unit is under the surface of the fluid. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims. | 12-04-2008 |
| 20090029609 | FRESH WATER FLUSHING SYSTEM FOR BOAT ENGINES - The present invention is a system and method for flushing marine engines with fresh water comprising a three way valve configured to receive three hose connections, a fresh water inlet; hoses to connect said valve to a marine engine; and union rings at the junction of each hose connection. | 01-29-2009 |
| 20090269998 | OUTBOARD ENGINE FLUSHING SYSTEM - The outboard engine flushing system frees the boater from need to lean out beyond the boat transom to access the conventional engine cooling flush components. The system includes a Y hose connector attached to the conventional inlet fitting beneath the engine cowling, and a forwardly extending flexible tube attached to another leg of the Y connector. The conventional return line normally connected to the cowl bottom inlet fitting is connected to the remaining leg of the Y connector. A shutoff valve is provided at the forward end of the flexible tube. To flush the cooling system of the engine, the boater connects a conventional water hose to the forward end of the flexible tube extending from the Y connector, opens the valve, and turns on the water. When flushing is complete, the shutoff valve is closed and the water hose disconnected to ready the boat and engine for further operation. | 10-29-2009 |
| 20110275258 | Marine electric generator flushing system - A marine electric generator flushing system for a boat has a liquid container attached in the generator raw cooling water intake line and mounted in a boat hull positioned along the water line of the boat. The liquid container has a fresh water inlet that allows a fresh water hose to be connected thereto and which automatically blocks the raw water line anytime fresh water is entering the liquid container so that fresh water is drawn through the generator cooling system. | 11-10-2011 |
| 20120009831 | Engine Flushing System - A method of flushing internal water passages of a motorboat engine having the steps of attaching a water supply to a power head of the motorboat engine and flushing the internal water passages of the motorboat engine using a water flow which flows in a substantially downward direction after the water enters the motorboat engine. | 01-12-2012 |
| 20140162508 | Telescoping Marine Engine Flushing Assembly - Disclosed is a telescoping pole connected to a sealing attachment that has two sealing caps, each having a tubular aperture. The sealing caps fit over the water intake ports of an outboard or a sterndrive marine motor, creating an enclosed compartment through which water can be pumped into the marine engine and outdrive. A hose runs down along the length of the telescoping pole and connects to one of the sealing caps so that water can be pumped through the hose into the engine. The present invention has connection means for both the telescoping pole and the hose on both sides of the sealing attachment, allowing the present invention to be used regardless of which side of the boat the dock is positioned on. | 06-12-2014 |
| 20140179180 | Apparatus and Method for Boat Motor Winterizing - There is provided a portable (easily carried by one person), re-usable apparatus for protecting an engine of a watercraft by filling engine passageways with a protective fluid. The apparatus does not require a pump for the protective fluid. In operation, filling the container with protective fluid, clamping the flexible cup to the water intake ports, and opening the valve permits the running engine of the watercraft to suction protective fluid into cooling fluid passageways within the engine. The entire operation is carried out without a pump to pressurize the protective fluid, and minimizes fluid safe disposal requirements. | 06-26-2014 |
| 20160076433 | Boat Motor Flushing System - A boat motor flushing system that allows for single handed manipulation when remotely positioning the flushing ears providing a source of fresh water when flushing or performing maintenance on the motor of a boat stored on a lift. The system is comprised of a water passage tube, a locking rod, flushing ears, gripping handle and locking assembly. | 03-17-2016 |
| 20160251068 | Boat Motor Flushing System | 09-01-2016 |
| 20100167607 | Personal Watercraft - A personal watercraft comprises an engine which is mounted in a body of the watercraft and is equipped with an open-loop water cooling system; a coolant passage in which water for cooling the engine flows; a water flow generator configured to operate in association with the engine to generate a water flow in the coolant passage; and a valve unit configured to restrict a flow of the water in the coolant passage. | 07-01-2010 |
| 20110117800 | Marine Heat Exchanger - A marine heat exchanger comprising a housing assembly and a heat exchange core assembly. The housing assembly comprises a process fluid inlet, a process fluid outlet, a coolant inlet and a coolant outlet. The housing assembly defines a process fluid passageway between the process fluid inlet and the process fluid outlet. The heat exchange core assembly comprises a plurality of coolant tubes and a plurality of heat exchange fins. The coolant tubes comprise copper alloy and the heat exchange fins comprise copper. The coolant tubes are joined to the heat exchange fins by cuprobraze joints. The coolant tubes are provides between the coolant inlet and the coolant outlet and define a coolant passageway. At least part of the coolant tubes and at least part of the heat exchange fins extend through the process fluid passageway. | 05-19-2011 |
| 20090163094 | OUTBOARD MOTOR - An outboard motor includes a water pump arranged to draw in cooling water, a pump drive mechanism that decelerates rotation of a drive shaft and transmits the rotation to the water pump, and an oil supply device (a main oil passage, oil ejection passages, a hollow portion, and an oil ejection hole) arranged to supply oil to lubricate a transmission to the pump drive mechanism. The outboard motor is able to prevent occurrence of cavitation in a water pump of a vane-type pump and to increase a discharge amount of the pump while an engine is running at high speed. | 06-25-2009 |
| 20110294379 | OUTBOARD ENGINE - An outboard engine is disclosed that includes an idling chamber that communicates with a guiding outlet of a first exhaust path and that is open to the atmosphere. The idling chamber includes a cooling water communicating path that communicates with a cooling water supplying path, and a pressure adjusting valve that opens the cooling water communicating path when the value of the water pressure in the cooling water supplying path reaches a threshold value. When the value of the water pressure in the cooling water supplying path reaches the threshold value, the pressure adjusting valve opens and a portion of cooling water is guided to the idling chamber through the cooling water communicating path. | 12-01-2011 |
| 20150133009 | VESSEL PROPULSION APPARATUS - A vessel propulsion apparatus includes a water pump that is driven by an engine, and supplies water from an water inlet to the engine via a cooling water supply passage. The vessel propulsion apparatus includes an auxiliary cooling passage branching from the cooling water supply passage to extend to an oil pan. A water pressure control valve disposed at a branch position from the cooling water supply passage to the auxiliary cooling passage limits the flow rate of water flowing to the auxiliary cooling passage when a water pressure inside the cooling water supply passage is less than a set pressure. The water pressure control valve is configured to allow a portion of the water inside the cooling water supply passage to flow to the auxiliary cooling passage when the water pressure inside the cooling water supply passage is the set pressure or more to maintain the water pressure to be less than the set pressure while supplying water to the oil pan via the auxiliary cooling passage. | 05-14-2015 |
| 20150367925 | MARINE PROPULSION DEVICE - A marine propulsion device includes an engine, a driving shaft coupled to the engine and configured to transmit power, a first cooling water pump configured to be driven by the driving force of the driving shaft and to pump cooling water to cool the engine, a cooling water path configured to supply the cooling water sent by the first cooling water pump to the engine, and a pressurization mechanism arranged in a water passage upstream of a suction port of the first cooling water pump and configured to apply pressure to the cooling water supplied to the suction port of the first cooling water pump. | 12-24-2015 |
| 20090156070 | MARINE EXHAUST MANIFOLD - A marine exhaust manifold comprises a collector for receiving exhaust gases from an engine, at least two exhaust runners for conducting exhaust gas from said engine to the collector, and a cooling jacket to cool said collector and exhaust runners. In one aspect at least one exhaust runner is adapted to expel exhaust gas into the collector so that the expelled exhaust gas is forced across the gas outlet end of at least one other exhaust runner, thereby creating a pressure drop within said at least one other exhaust runner. In another aspect there are at least three exhaust runners and the gas outlet ends of the exhaust runners are provided in the collector in a substantially single plane, which is substantially parallel to the direction of expulsion of the exhaust gas into the collector. In another aspect the manifold is provided with a sacrificially corroding element, such as a sacrificial anode. | 06-18-2009 |
