摘要:
An area which may be en-route from a departure place to a destination is specified, and when a route which passes through the specified en-route area is an optimal route, a guidance for the optimal route is given. Route search servers (30A, etc.) each of which includes a plurality of service providing areas and has a predetermined area as a service providing area cooperate with one another to search for an optimal route from the departure place to the destination, both set by a terminal device (20), and give a guidance for the optimal route. Each route search server (30A, etc.) includes information on candidate nodes between a local area and each of the other areas, network data and map data within the local area, and route search means (307A). The route search server (30A, etc.) which has received a route search request with the departure place and destination set therein from the terminal device (20) causes a route search server (30B, etc.) in each area, which may be en-route, to search for candidate nodes in each area based on the information on the candidate nodes, and provides the terminal device (20) with a guidance for a candidate node which minimizes the link cost as a recommended route.
摘要:
A water-cooled internal combustion engine has a cylinder head 21 provided with a cylinder head water jacket Jh through which cooling water flows. The cylinder head water jacket Jh includes a combustion chamber water jacket 70 surrounding combustion chambers 26 and an exhaust passage water jacket 71 around an exhaust manifold passage 38. The exhaust gas discharged from the combustion chambers 26 through exhaust ports 28 flows through the exhaust manifold passage. The exhaust passage water jacket 71 is divided into an upstream water jacket 72a and a downstream water jacket 72b by a partition wall 75. The cooling water flows from both the upstream water jacket 72a and the downstream water jacket 72a into the combustion chamber water jacket 70. Equality in temperature between a combustion chamber wall and an exhaust passage wall is improved and the cylinder head 21 is heated in a uniform temperature distribution.
摘要:
In an outboard engine unit, a cover assembly, defining a lower half section of an engine room, is composed of left and right cover members each formed of resin, and a bracket is fixed to a rear portion of the engine or engine support structure. The left and right cover members are fixed at their respective rear portions to the bracket. Centerline of an engine cylinder is offset from a centerline of the engine room toward one of left and right sides of the unit, and an ignition plug is provided on the other side opposite from the one side toward which the engine cylinder centerline is offset.
摘要:
A compact and lightweight outboard engine (1) mounted to a boat stern by a mounting device having a tilt shaft comprises: an engine (2) including a flywheel (56) positioned at a lower end portion of a vertically extending crankshaft, and an oil pan positioned below the flywheel (56). An upper wall of a flywheel chamber (59) accommodating the flywheel 56 is made up of a bottom wall of a crank chamber made of a crankcase (30), etc., and a bottom wall (30a) of the crankcase (30) forming a front portion of the engine body (3) has a return oil path 71 formed forward of an inner circumferential wall surface (60e) of a circumferential wall (60) of the flywheel chamber (59) and having inflow openings (71a, 71b) through which lubricant oil flows from the crank chamber. Such outboard engine prevents output loss by preventing or minimizing lubricant oil staying in the crank chamber while the engine is driven in a tilt-up condition.
摘要:
An outboard motor is provided, the motor including a V-multicylinder engine arranged horizontally and an intake silencer arranged above the engine. The V engine has an engine block including cylinder blocks extending in a V configuration, forming an opening to the rear of the outboard motor. The intake silencer is arranged above the engine block to match the shape of the V engine. The intake silencer has two inlets opening rearwards of the outboard motor and one outlet positioned between the inlets for introducing air to combustion chambers of the cylinder heads. The two inlets are positioned above the cylinder blocks in a V configuration, respectively.
摘要:
In a pump driving device in an engine, driving a pump shaft of a pump mounted to an engine body by a valve-operating cam shaft supported by the engine body, a bolt is threadedly engaged with one end of the cam shaft, the bolt having a head portion in which a polygonal hole is formed, and a polygonal shaft portion is formed at one end of the pump shaft so as to be fitted into the polygonal hole. The pump shaft is driven by the cam shaft via the polygonal hole and the polygonal shaft portion. Thus, a large driving torque can be transmitted from the cam shaft to the pump shaft without reducing any effective support surface of a journal portion of the cam shaft.
摘要:
An internal oil strainer housed in an outboard motor unit. A lower end of an oil tube is supported by a first seal member constructed of an O-ring fitted into an oil outlet of a strainer case. An upper end of the oil tube is supported by a second seal member constructed of an O-ring fitted into an inlet of an oil channel.
摘要:
An outboard engine unit includes a single lubricating oil supply tube for supplying lubricating oil to a valve-operating chain. The valve-operating chain is suspended across a drive sprocket provided to a crankshaft and a driven sprocket provided to a camshaft. A supply tube is connected to a main gallery that is linked to a main oil channel positioned in an area adjacent to the crankshaft.
摘要:
Provided is a hanger arrangement for V-type vertical engines which not only allows the engine to be hoisted in a stable manner but also enhances the freedom in the design of the engine without interfering with other accessories and a hanger arrangement for outboard marine drives equipped with such an engine. A first and second hanger bracket are attached to outer sides of the cylinder heads, respectively, and a third hanger bracket is attached substantially centrally on an outer side of the crankcase. In particular, the third bracket is preferably located within the loop of an endless belt passed around a generator which is fixedly attached to the outer side of the crankcase.
摘要:
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.