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| Number | Title | Issue Date |
| 8172629 | 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 th... | 05/08/2012 |
| 8075357 | 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... | 12/13/2011 |
| 7850496 | Lubrication system of a marine propulsion device A lubrication draining and filling system provides oil passages that direct a flow of liquid oil from a bottom region of an oil sump, located within a rotatable portion of the marine propulsion system, to a discharge port which is connectable in fluid communication ... | 12/14/2010 |
| 7727037 | 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... | 06/01/2010 |
| 7645175 | Engine comprising oil supplying apparatus An oil supplying apparatus for supplying the oil to an engine of a watercraft can be provided with an oil sump, a vapor-liquid separation chamber, a scavenging pump for sending the oil in the oil sump to the vapor-liquid separation chamber, a transfer path for retur... | 01/12/2010 |
| 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 engine oil, a second chamber for containing engine oil, a pinion sec... | 10/06/2009 |
| 7410398 | Engine mounted oil tank An oil system for an outboard motor is disclosed. The oil system has a pump disposed in an oil reservoir. The oil reservoir is attached to an engine of the outboard motor. The oil reservoir is preferably sized according to engine size to hold an average year's suppl... | 08/12/2008 |
| 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 |
| 7341015 | Watercraft drain A watercraft drain assembly has a tubular drain body having a first end and a second end, at least one inlet opening disposed on the drain body for allowing water to enter the drain body, a first outlet opening disposed at the first end of the drain body for allowin... | 03/11/2008 |
| 7316992 | Method and system for modifying a used hydrocarbon fluid to create a cylinder oil A method and system of creating a cylinder oil having a target TBN ranging from 40 to 70 for use in a two-stroke en line. Fresh system oil having a TBN less than 10 is provided. The fresh system oil is used in the two-stroke engine to product partially used system o... | 01/08/2008 |
| 7290514 | Valve train lubricating structure in internal combustion engine To prevent a drop in a lubricating oil supply pressure in a valve train from occurring by disposing a lubricating oil supply path for the exclusive use of the valve train without allowing the lubricating oil to flow through an oil gallery, thereby securing a suffici... | 11/06/2007 |
| 7244353 | Method of and system for fluid purification A method of and system for purifying fluid of an internal combustion engine or hydraulic system utilizes an evaporation chamber separate from a filtering chamber. A metering valve may be oriented between the filtering chamber and the evaporation chamber to control t... | 07/17/2007 |
| 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 |
| 7219644 | Engine cooling system configuration, and personal watercraft incorporating same An internal combustion engine for a personal watercraft in which cooling water in an oil cooler housing is naturally discharged when the personal watercraft is pulled up on land. An oil cooler is disposed within an oil cooler housing on an upper front side of the en... | 05/22/2007 |
| 7219643 | Internal combustion engine having an improved oil cooling structure, and personal watercraft incorporating same The use of an oil cooler in an internal combustion engine for a personal watercraft is controlled, whereby excessive cooling of the engine during warmup with cold water operation is avoided, and dilution of oil is substantially prevented. The internal combustion eng... | 05/22/2007 |
| 7198040 | Intake device of internal combustion engine According to one exemplary embodiment of the present invention, there is provided an intake device of an internal combustion engine, having a plurality of intake passages for introducing an intake gas into a row of engine cylinders, respectively; and a secondary gas... | 04/03/2007 |
| 7182658 | Outboard motor An outboard motor engine drives an output shaft which drives a propeller shaft. The output shaft has a drive gear that engages driven gears of the propeller shaft within an oil bath for holding a lubricant for soaking the drive and driven gears. The outboard motor h... | 02/27/2007 |
| 7162985 | Two-cylinder V-type OHV engine for outboard motors A two-cylinder V-type OHV engine for outboard motors, which allows space saving in the direction of the width of the engine. A starboard side cylinder bank (RB) has a cylinder (34R) and a port side cylinder bank (LB) has a cylinder (34L). The first cyl... | 01/16/2007 |
| 7152706 | Induction system for a four cycle engine A four cycle engine having at least one cylinder unit is disclosed. The engine includes a continuously variable transmission (CVT) connected to the engine on one side of the engine. An air box is also provided that is located on the same side of the engine as the CV... | 12/26/2006 |
| 7141166 | Drain structure having drainpipe and fluid filter using the same An oil filter has a drain hole, which is internally blocked with a valve member. When oil remaining in the oil filter is drained, a drainpipe is inserted into the drain hole, so that the valve member is displaced and remaining oil is drained from the drain hole. Thi... | 11/28/2006 |
| 7140934 | Internal combustion engine having an improved oil pan structure for a personal watercraft, and personal watercraft including same An internal combustion engine for a personal watercraft, the engine including an oil pan in which a lateral width and vertical width thereof are narrow, in compliance with a shape of the boat bottom of the personal watercraft, resulting in an internal combustion eng... | 11/28/2006 |
| 7134924 | Outboard motor steering system A steering system of an outboard motor is provided that is mounted on a stern of a boat and having an internal combustion engine at its upper portion and a propeller with a rudder at its lower portion that is powered by the engine to propel the boat. The steering sy... | 11/14/2006 |
| 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 |
| 7118435 | Outboard motor A system for replenishing a lubricant pan with the lubricant comprises a lubricant tank provided separately from the lubricant pan. A lubricant replenishing pump is provided in the lubricant tank for replenishing the lubricant pan with the lubricant. A lubricant lev... | 10/10/2006 |
| 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 |
| 7069900 | Module for an internal combustion engine A module for an internal combustion engine formed as a unit comprising an oil filter for lubricating oil of the engine and an oil separator for crankcase ventilation gas and which, as a whole, is attached to the engine by a flange connection with flow connections. A... | 07/04/2006 |
| 7055471 | Hydraulic lifter feed gallery with aeration removal orifice An apparatus and method for providing lubricant to a plurality of hydraulic lifters in an internal combustion engine is disclosed, in which the amount of gas bubbles present in the lubricant provided to the lifters is reduced or eliminated so that lifter noise is re... | 06/06/2006 |
| 7051721 | Blowby gas circulation system and the method of circulation A blowby gas circulation system for an engine having a crankcase and an intake system includes an oil tank which is independent of the crankcase, a first breather chamber and second breather chamber which are integrally provided with the crankcase. The oil tank supp... | 05/30/2006 |
| 7036480 | Engine lubrication system A lubrication system for an engine includes a sump for lubricant, a pump to pump lubricant along a lubricant feed line to lubrication positions within the engine, and a lubricant conditioner, and wherein the pump is an electrically driven pump which is controlled by... | 05/02/2006 |
| 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 |
| 7017546 | Dry sump oil tank assembly A tank assembly for a dry sump lubrication system for an internal combustion engine is disclosed. The tank assembly includes a tank having an upper tank portion and a lower tank portion. An interface assembly is disposed at the lower tank portion and is configured t... | 03/28/2006 |
| 7008279 | Drive shaft support structure for marine propulsion machine In a drive shaft support structure for a marine propulsion machine, a gear case is provided with a vertical drive shaft receiving, bore and a drive shaft driven by an internal combustion engine is supported for rotation in the drive shaft receiving bore. A gear case... | 03/07/2006 |
| 6997128 | Stand-up type personal watercraft A stand-up type personal watercraft comprises a body including a hull and a deck covering the hull from above, the body having a foot deck at a rear portion of the deck, on which an operator rides, a water jet pump configured to propel the watercraft, and a four-cyc... | 02/14/2006 |
| 6955573 | Small watercraft A small watercraft including an engine mounted in a body such that an axial direction of a crankshaft corresponds with a longitudinal direction of the body, an oil tank provided such that a longitudinal direction thereof corresponds with the axial direction of the c... | 10/18/2005 |
| 6941921 | 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... | 09/13/2005 |
| 6938605 | Oil cooling system to provide enhanced thermal control for combustion engines An oil cooling system to provide enhanced thermal control for internal combustion engines wherein the oil cooling system of the present invention works in conjunction with the standard oil lubrication circuit and typical liquid coolant system of an engine to maintai... | 09/06/2005 |
| 6928943 | Boat plug key system Embodiments of the present invention provide a boat plug key system for storing, installing, and removing a boat plug consist of a canister, a canister lid, and a boat plug. The use of a boat plug key system of the present invention reduces the probability of forget... | 08/16/2005 |
| 6929519 | Outboard motor An outboard motor includes an under cover covering a part of an engine, a mount case supporting the engine, and an oil pan provided below the mount case. The under cover has an opening formed at a place opposite to a drain unit provided at a lower portion of the oil... | 08/16/2005 |
| 6918348 | Personal watercraft Disclosed is a watercraft comprising a body; a hull constituting a lower portion of the body; a deck having deck floors formed on both sides of the body in a width direction and a raised portion at least extending from a center portion of the body to a rear end port... | 07/19/2005 |
| 6916216 | Small watercraft A small watercraft comprises an engine for propelling a body of the watercraft, an oil tank configured to reserve oil for lubricating the engine, an oil separator configured to separate the oil from a blow-by gas of the engine, and an oil return passage configured t... | 07/12/2005 |
