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| Number | Title | Issue Date |
| 7523735 | Multiple-cylinder engine for outboard motor An engine body of the multiple-cylinder engine for an outboard motor can include a crankcase for supporting a crankshaft whose axis extends vertically, and plural cylinders that are vertically arranged in line, each cylinder horizontally extending outward from the c... | 04/28/2009 |
| 7421997 | Outboard engine unit An outboard engine unit having heat-generating electrical equipment. An intake port of an intake silencer is set at a distance from an engine, and air suctioned from the intake port is unlikely to be affected by heat produced by the engine. Electrical equipment is d... | 09/09/2008 |
| 7380533 | Outboard motor provided with internal combustion engine having electrical equipment box An outboard motor S has an exhaust manifold passage 37 for carrying exhaust gas from combustion chambers 30. The exhaust manifold passage 37 is formed in a part of a cylinder head 22 in an exhaust-side part of an internal combustion engin... | 06/03/2008 |
| 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 |
| 7343892 | Air-cooled diesel outboard motor An air-cooled diesel outboard motor comprising an air-cooled diesel engine. The diesel engine includes a vertical crankshaft, an exhausting port and a drive-leg. The drive leg includes a gear-box, a propeller and a water pump in a lower unit, a water cooling exhalat... | 03/18/2008 |
| 7341039 | Lubrication system for a marine propulsion system with a tilted in-line engine A lubrication system for an in-line engine which has a piston symmetry plane that is tilted relative to a vertical plane is provided with an oil pan and windage tray that facilitates the transfer of oil from a rotating crankshaft to the oil pan without excessive aer... | 03/11/2008 |
| 7334560 | Accessory drive unit The accessory drive unit, mounted intermediate an engine and a transmission, provides mounts for a water pump, an alternator, a supercharger and a starter. The accessory drive unit includes a main planetary gear driving a supplemental gear which is rotatably interco... | 02/26/2008 |
| 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 |
| 7267592 | Latching system for an outboard motor cowl A latch mechanism for a cowl of an outboard motor provides a handle and retaining mechanism for the handle which define a detent position when the handle is in a latching or closed position. A protrusion of the handle rotates in a plane which places it between a rol... | 09/11/2007 |
| 7258096 | Oil filter fixing system for V type engine The number of constituent parts for an oil filter fixing system such as a bracket, are reduced, and the oil leaks during filter element exchange are avoided. The oil filter fixing system comprises a V bank of a V type engine, a crankcase fixed with the V bank and an... | 08/21/2007 |
| 7247064 | Cowling assembly for outboard motor A cowling assembly for an outboard motor includes a top cowling and a bottom cowling for covering an internal combustion engine for an outboard motor. The top cowling is formed by pressing a nonferrous material. The top cowling includes an opening edge and attaching... | 07/24/2007 |
| 7219642 | Powertrain assembly and integral truss oil pan therefor A cast oil pan is connected between en engine crankcase and a lower end portion of a transmission bellhousing. Oil pan side walls each incorporate an integrally cast truss extending between an end flange of the oil pan and adjacent portions of an upper flange to sti... | 05/22/2007 |
| 7191871 | Lubricating device for engine A sub-gallery for leading oil to a cylinder head side of an engine is provided in a crankcase in such a manner as to be connected to an outlet of an oil filter and in parallel with a main gallery. A lubricating device is also provided to equally feed oil to each of ... | 03/20/2007 |
| 7174867 | Air-cooled internal combustion engine An air-cooled internal combustion engine includes a cylinder block having a plurality of cylinder bores disposed in parallel to each other, a cylinder head secured to an upper portion of the cylinder block, a crankshaft, two camshafts disposed in a parallel, juxtapo... | 02/13/2007 |
| 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 |
| 7160162 | Exhaust system for internal combustion engine of outboard motor An exhaust system that reduces noise generated by exhaust gases is provided. The exhaust system includes a drive unit that supports an internal combustion engine. An exhaust guide forms an upper portion of the case. An oil pan is attached to a lower surface of the e... | 01/09/2007 |
| 7114478 | Intake system of outboard motor An outboard motor includes an upright engine in which a plurality of cylinders are arranged vertically, an engine cover covering the engine, and an intake system for the engine. The intake system includes an intake manifold disposed on a side of the engine and provi... | 10/03/2006 |
| 7114469 | Cooling system for a marine propulsion engine A cooling system for a marine engine divides a flow of cooling water into first and second streams downstream of a pump. The first stream flows through a first cooling system which is controlled by a pressure sensitive valve. The second stream flows through a second... | 10/03/2006 |
| 7100563 | Vertical engine and outboard engine system Oil jets are mounted in upper two cylinders in a cylinder block of a 4-cylinder vertical engine to inject an oil to rear faces of pistons received in the two cylinders. Thus, although lower pistons are cooled more effectively by the oil dropped by gravitation throug... | 09/05/2006 |
| 7086370 | Outboard motor An outboard motor has an engine and a mounting case disposed below and connected to the engine. The mounting case has a depression opening upward. The opening is covered by a cover to form a coolant chamber. An exhaust passage passes through the coolant chamber and ... | 08/08/2006 |
| 7069895 | Air intake system of outboard motor An outboard motor has a V-type engine in which in which a plurality of cylinders are arranged in a V-shape, a crankshaft is arranged substantially vertically, and an overhead valve (OHV)-type valve train is mounted. This outboard motor also includes an air intake sy... | 07/04/2006 |
| 7066134 | Vertical engine In a vertical engine, a bulged portion protrudes upwards, in conformity to a partially cylindrical outer wall of uppermost one of cylinders, on an upper surface of a cylinder block forming a bottom wall of a chain chamber accommodating a chain for driving a camshaft... | 06/27/2006 |
| 7055488 | Vertical engine A first chain mechanism for transmitting the rotation of a crankshaft of an vertical engine to a camshaft and a second chain mechanism for transmitting the rotation of the crankshaft to a balancer shaft are forcibly lubricated by an oil injected by first, second and... | 06/06/2006 |
| 7047732 | Outboard engine exhaust structure An exhaust structure for use in an outboard engine of a vertical-type four-cycle V-type having cylinder heads, a crankcase, cylinder blocks constituting left and right sides of an integral body disposed in a V shape as seen in a plan view and forming a V-bank thereb... | 05/23/2006 |
| 7021268 | Crankshaft with airflow inducing surfaces A crankshaft is provided with a plurality of counterweights which are asymmetrically formed so that one surface has a shape which induces a flow of air and oil mist in a preselected and preferred direction. This shape also improves the aerodynamic characteristic of ... | 04/04/2006 |
| 7021262 | Undercowl plenum chamber with preferential air paths An air intake system for an outboard motor provides parallel air flow paths between an opening formed in a cowl of the outboard motor and an air intake manifold of an engine under the cowl. A first air path flows in a relatively direct path between the opening in th... | 04/04/2006 |
| 6991500 | Cowl latching mechanism for an outboard motor A cowl latching system is provided which facilitates the installation of a removable cowl with respect to a stationary cowl structure and allows these two components to be locked together as a result of a simple downward movement in a vertical direction of the remov... | 01/31/2006 |
| 6966284 | Outboard motor There is provided an outboard motor (1), comprising: an intake valve (17) and an exhaust valve (18) provided to a cylinder head (14); a camshaft (20) arranged substantially vertically in the cylinder head to open and close the inta... | 11/22/2005 |
| 6964255 | Outboard motor An outboard motor includes a vertical multi-cylinder engine, a fly-wheel magneto device, a partition plate, and a ventilation fan. The vertical multi-cylinder engine is disposed in an engine cover and comprises a crank case and a crank shaft, the crank shaft being r... | 11/15/2005 |
| 6962047 | Engine intake A/F ratio control system in outboard engine system In an engine intake A/F ratio control system in an outboard engine system, a secondary air passage (P) for supplying secondary air for regulating the A/F ratio of an air-fuel mixture is connected to a carburetor (33) in an intake system of an engine (E), and ... | 11/08/2005 |
| 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 |
| 6923283 | Grooved oil pan for use with a snowmobile Herein is disclosed a snowmobile with an improved center of gravity. The snowmobile utilizes an oil pan with a bottom portion and a set of side portions that cooperate with the bottom portion to form a sump in which oil collects. The bottom portion may be grooved to... | 08/02/2005 |
| 6840827 | Outboard engine cowling A cowling for an outboard marine engine includes an upper motor cover, a lower motor cover and a gear case that covers an engine that propels a watercraft. The upper motor cover mates with the lower motor cover and is configured to assist with alignment during assem... | 01/11/2005 |
| 6796282 | Vertical internal combustion engine In a vertical internal combustion engine, comprising; a cylinder block; a cylinder head connected to an end of the cylinder block; a crankshaft extending generally vertically and rotatably supported in the cylinder block; a camshaft extending generally in parallel w... | 09/28/2004 |
| 6763795 | Outboard motor arrangement An arrangement for a four-cycle, direct injected engine for an outboard motor is disclosed. In one embodiment, the engine is a V-type engine comprising first and second cylinder banks. A high pressure fuel pump is actuated by an intake camshaft of the first bank of ... | 07/20/2004 |
| 6748911 | Valve timing control for marine engine An engine for a marine drive has a combustion chamber. An engine body of the engine defines an air intake port communicating with the combustion chamber. An air induction system communicates with the air intake port to introduce air to the combustion chamber through... | 06/15/2004 |
| 6718931 | Recoil starter A recoil starter has a starter case provided around a starter shaft. A one-way clutch mechanism is formed between one end of the starter shaft and an engine. A reel is mounted rotatably on the starter shaft and a rope is wound in a groove of the reel. A first spiral... | 04/13/2004 |
| 6715454 | Outboard motor including water-cooled V-engine An outboard motor includes a water-cooled V-engine. The engine includes right and left cylinder block portions each having plural cylinders formed therein. The cylinders of each cylinder block portion are vertically juxtaposed. Cylinder heads are disposed behind the... | 04/06/2004 |
| 6682379 | Cowl latching system which simplifies the cowl removing process A cowl latching system provides a retainer that is attached to the outboard motor and a catch device which is attached to a cowl structure. The catch device is shaped to allow the retainer to move between first and second extension portions. The retainer ... | 01/27/2004 |
| 6669517 | Multiple part cowl structure for an outboard motor A cowl structure comprises first and second cowl members that are independent components. A first cowl member is attachable, by a latch mechanism, to a support structure of the outboard motor. The second cowl member is attachable by a latch mechanism, to ... | 12/30/2003 |
