Suzuki Motor Corporation

Suzuki Kabushiki Kaisha

Toshio Watanabe

Katsuhiro Fukuda

Jun Itoh

Shuichi Hagino

Satoru Takahashi

Shuichi Mishima

Hidetsugu Shimada

Shingo Matsumoto

Jun Ito

Yudai Atsumi

The cooling device for a power source for a ship propulsion device that pumps up cooling water, from which foreign matters with sizes that cause clogging of a cooling water route have been removed, supplies the cooling water to a cooling water passage (), and discharges the cooling water to outside after cooling a power source () includes: a cartridge-type filtration device () that is provided at a midpoint of a first water passage () in the cooling water route and incorporates a filter () for filtrating foreign matters remaining in the cooling water; and a second water passage () that is branched from the first water passage and adapted such that a valve member () is opened to cause the cooling water to flow in a case in which clogging occurs in the filter.

Cooling device for power source for ship propulsion device

The cooling device for a power source for a ship propulsion device that pumps up cooling water, from which foreign matters with sizes that cause clogging of a cooling water route have been removed, supplies the cooling water to a cooling water passage (), and discharges the cooling water to outside after cooling a power source () includes: a filtration device (A,B) provided in the cooling water route to filtrate foreign matters remaining in the cooling water, and the filtration device is of a cartridge type that incorporates a filter () for filtration disposed in a main water passage (P) and a valve member () configured to open and close a bypass water passage (P) and that is configured such that in a case in which clogging occurs in the filter, the valve member opens to cause the cooling water to flow via the bypass water passage.

A cooling device for a power source for a boat propulsion apparatus includes a cooling water passage. The cooling water passage includes a passage provided in the power source, in which an engine or an electric motor is used as the power source of the boat propulsion apparatus that propels a boat. Water from outside the boat is taken into the cooling water passage as cooling water to cool the power source, and the cooling water after cooling the power source is drained from the cooling water passage. From the cooling water flowing through the cooling water passage, foreign substances having a size that clogs the cooling water passage are removed. The cooling water passage is provided with a filter device which can filter residual foreign substances remaining in the cooling water.

Cooling device for power source for boat propulsion apparatus

In an outboard motor having an engine unit housed in an engine room formed by an exterior cover, a protruding portion is projectingly formed on the upper surface of an engine cover covering the upper portion of the outboard motor, and an outside air inlet opened to face forward is provided at the protruding portion.

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.

Intake device of outboard motor

An outboard motor is provided with an intake device, in which a throttle body is connected to an upstream side of an intake manifold connected to an intake port formed in a cylinder head of an outboard motor engine and a silencer is connected to an upstream side of the throttle body. A noise reduction device is further disposed between a connecting portion of the throttle body and the silencer.

An outboard motor includes an engine holder, an engine installed above the engine holder, an intake apparatus disposed on one side of the engine, and an electric equipment box and an exhaust apparatus both disposed on another side of the engine. The intake apparatus comprises a throttle body installed in a front portion of the engine, a silencer operatively connected to an upstream side of the throttle body, a surge tank disposed on one side of the engine, and an intake manifold operatively connected to the surge tank. The silencer extends around a front side of the engine towards the exhaust apparatus. The silencer is provided with an upstream end portion to which an intake port is formed to open rearward. The upstream end portion may be fixed to a wall portion of the electric equipment box and the upstream end portion of the silencer has a lower surface to which an intake port is formed so that it opens downward.

Intake apparatus of outboard motor

An outboard motor includes an engine holder, an engine disposed above the engine holder and the engine includes a cylinder block provided with a plurality of cylinders, a cylinder head disposed behind the cylinder block and a crankcase, a cam chain case through which said engine is mounted on the engine holder, and an exhaust apparatus operatively connected to the cylinder head. The exhaust apparatus includes an exhaust passage formed to the cam chain case, an exhaust manifold connected to the cylinder head, a water jacket formed to the exhaust manifold and another water jacket formed to the exhaust passage. The exhaust passage is formed at a portion near a central portion of the engine having most wide width in association with a lower end portion of the exhaust manifold.

Exhaust apparatus of outboard motor

An outboard motor is equipped with an engine, an engine holder, an oil pan disposed below the engine in a state of the outboard motor being mounted to a hull, a water pump disposed below the oil pan, and a cooling water passage structure. The cooling water passage structure includes a vertical cooling water passage vertically passing through inside the oil pan and communicated with the side of the engine, a lateral cooling water passage extending in a lateral direction along a bottom surface of the oil pan, a cooling water supply pipe extending upward from the water pump and connected to a side of the engine, and a water pressure relief valve provided for the lateral cooling water passage for controlling a pressure increasing of the cooling water. The lateral cooling water passage has one end communicated with a lower end of the vertical cooling water passage and has another one end to which an upper end of the cooling water supply pipe is connected.

Cooling water passage structure of outboard motor

An outboard motor includes an engine holder, an engine disposed above the engine holder in an installed state of the outboard motor, a flywheel magnet device disposed above the engine, an oil filter disposed on a side portion of the engine, an electric equipment box, an air suction device, an exhaust device and a fuel supply device, these electric equipment box, suction device, exhaust device and fuel supply device being arranged around the engine, and an engine cover covering the engine. The air suction device is composed of a throttle body, a surge tank and an intake manifold including a plurality of branch members extending from the surge tank, the intake manifold is disposed vertically, in the installed state, on one side of the engine so that the intake manifold is located between the flywheel magnet device and the oil filter as viewed from a side portion thereof and the intake manifold has at least a portion superposed on the flywheel magnet device and the oil filter as viewed in a plan view. The electric equipment box and the exhaust device are disposed on another side of the engine opposing to the side on which the intake manifold is disposed.

Growing community of inventors

Hamamatsu, Japan

Toshio Watanabe