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| Number | Title | Issue Date |
| 7334545 | Method and cooling system for cooling an internal combustion engine In a method for cooling an internal combustion engine, in particular in/on a motor vehicle, it is possible for individual components of the internal combustion engine to be cooled individually, for example a cylinder head and/or a cylinder block, by what is known as... | 02/26/2008 |
| 7326093 | Personal watercraft A personal watercraft equipped with an engine cooling system and a cleaning system therefore, including a body 1 including a deck 3 and a hull 2, an engine E accommodated in the interior of the body 1, a cooling system configured to cool ... | 02/05/2008 |
| 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 |
| 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 |
| 7146807 | Exhaust manifold heat shield A heat shield for an internal combustion engine used in a boat, or other application where engine compartment heat is unwanted, has a water cooled body positioned around, but spaced apart from, the exterior surfaces of the exhaust manifold of the engine. The concavi... | 12/12/2006 |
| 7065961 | Exhaust system with an integral moisture trap A moisture trap is formed as an integral part of the wall of an exhaust conduit. Tapered surfaces can be provided to direct condensate downwardly and into a reservoir of the moisture trap where the moisture is retained until the temperature of the exhaust system rea... | 06/27/2006 |
| 7061147 | Superconducting electrical machines for use in navy ships Superconducting electrical machines, for example motors or generators, especially high-temperature superconducting machines, include a rotor equipped with superconductors, especially high-temperature superconductors. They further include a rotor cryostat, a rotor sh... | 06/13/2006 |
| 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 |
| 7001231 | Dual water injector for primary and idle relief exhaust passages A water cooling system for an outboard motor provides a water conduit that extends through both an idle exhaust relief passage and a primary exhaust passage. Water within the water conduit flows through first and second openings to distribute sprays or streams of wa... | 02/21/2006 |
| 6976892 | Water-cooled vertical engine, outboard motor equipped with water-cooled vertical engine, and outboard motor A water-cooled vertical engine is provided with an exhaust guide cooling water jacket and an exhaust manifold cooling water jacket formed in an engine compartment exhaust passage, a cylinder block cooling water jacket formed in a cylinder block, and a cylinder head ... | 12/20/2005 |
| 6929520 | Cooling method for a marine propulsion system A method for cooling a marine propulsion system directs a portion of a recirculating stream of cooling water to a first port of an exhaust manifold so that a cooling jacket of the exhaust manifold can be maintained in a filled condition. Water flows upwardly through... | 08/16/2005 |
| 6893306 | Cooling arrangement for outboard motor An outboard motor includes an engine and a housing unit mounted on an associated watercraft. An intermediate unit is coupled with the housing unit to support the engine above the housing unit. An exhaust conduit discharging exhaust gases from the engine depends from... | 05/17/2005 |
| 6821171 | Cooling system for a four cycle outboard engine A cooling system for a marine engine conducts water from a coolant pump through the cylinder head and exhaust conduit prior to conducting the cooling water through the cylinder block. This raises the temperature of the water prior to its entering the cooling passage... | 11/23/2004 |
| 6666737 | Cooling system for jet propulsion boat To provide a cooling system for a jet propulsion boat in which the quantity of washing water consumed can be reduced and the appearance is improved. The cooling system for a jet propulsion boat forces the engine to be cooled and forces the exhaust system ... | 12/23/2003 |
| 6663451 | Siphon pump for a marine propulsion device A fluid draining device for an outboard motor is provided with a conduit through which exhaust gases are directed. The flow of exhaust gas through the conduit induces a lowered pressure in a central portion of the structure. The reduced pressure magnitude... | 12/16/2003 |
| 6634913 | Cooling arrangement for outboard motor An outboard motor includes a housing unit and an engine. The engine defines a first exhaust passage and a first lubricant passage. The first exhaust passage generally extends on a first side of the outboard motor. The first lubricant passage generally ext... | 10/21/2003 |
| 6537116 | Cooling system for outboard motor A cooling system for an outboard motor includes an improved construction that can inhibit a housing unit of the outboard motor from absorbing heat that causes discoloring of the unit. The outboard motor includes a power head that has an engine. The housin... | 03/25/2003 |
| 6142109 | Anode device of outboard motor In an outboard motor, an exhaust passage is formed to a member constituting an engine such as cylinder block and a water jacket for cooling the exhaust passage is formed adjacent to the exhaust passage between the exhaust passage and an outer wall of the ... | 11/07/2000 |
| 5644914 | Exhaust pressure pulsation control apparatus for a marine propulsion system An exhaust pressure pulsation control apparatus for a marine propulsion system has a front ring and a reflector disk located downstream of the front ring. There is a space between the front ring and the reflector disk that is sufficiently large so that th... | 07/08/1997 |
| 5212949 | Exhaust gas cleaning system for a marine propulsion unit An exhaust gas cleaning system is provided for use with a watercraft engine. A plurality of horizontally positioned exhaust ports are located within an engine cylinder head. An exhaust manifold communicates with each of the exhaust ports at a first end an... | 05/25/1993 |
| 5149284 | Exhaust system for an outboard motor This invention is adapted to be embodied in an outboard motor that is comprised of a power head having an internal combustion engine surrounded by a protective cowling. The engine includes an exhaust port in communication with an exhaust pipe for discharg... | 09/22/1992 |
| 5035664 | Marine propulsion device gear arrangement A marine propulsion device comprising a housing adapted to be mounted on the transom of a boat, a first gear rotatably supported by the housing and adapted to be drivingly connected to a propeller, a pump, and a second gear which is driven by the first ge... | 07/30/1991 |
| 5006085 | Marine propulsion device with removable clutch assembly A marine propulsion device comprising a gear housing adapted to be mounted on the transom of a boat, a clutch assembly including a clutch housing, a shaft rotatably supported within the clutch housing and adapted to be drivingly connected to a propeller, ... | 04/09/1991 |
| 4993979 | Marine propulsion device A marine propulsion device comprising a gear housing adapted to be mounted on a transom of a boat, a first gear rotatably supported by the gear housing and adapted to be driven by an engine, a second gear which is rotatably supported by the gear housing, ... | 02/19/1991 |
| 4959033 | Marine propulsion device cover arrangement A stern drive unit comprising a metal upper gear housing which is adapted to be mounted on the transom of a boat for pivotal movement relative thereto about a generally vertical steering axis and about a generally horizontal pivot axis, a generally vertic... | 09/25/1990 |
| 4350010 | Exhaust system for an outboard engine An outboard engine has a casing, an internal combustion engine with a water cooling circuit and an exhaust pipe. The exhaust pipe discharges exhaust gases into an expansion chamber, and gases from the expansion chamber are discharged into the body of wate... | 09/21/1982 |
