Komatsu Corporation

Yutaka Tanaka

Takeshi Kamimae

Yasufumi Ohchi

Yasuyuki Suzuki

Tomoya Kumagai

Hideki Tsuji

Shingo Hidaka

Kazunori Kamei

Kenji Hiraoka

Norihito Bando

Tohru Naitou

Atsushi Shirao

Toru Naito

Ken Nishihara

Hirotaka Kamekura

Kazuyuki Sagara

Syuhei Takarae

Satoshi Isejima

Shuyu Nagaoka

Osahiro Konno

A mode selecting unit is configured to generate an operation signal indicating one control mode selected from a plurality of control modes including a predetermined first mode and a second mode in which a traction force is controlled to be smaller than a traction force in the first mode. A controller is configured to obtain the operation signal from the mode selecting unit and control a drivetrain in accordance with the selected control mode. The controller is configured to start controlling the drivetrain in the second mode in starting of a vehicle.

Wheel loader and control method thereof

A wheel loader includes an engine, an engine compartment, an injection device, a top plate and a first guide member. The injection device is disposed in the engine compartment. The top plate has a ventilation part. The ventilation part is disposed in a position horizontally away from the injection device. The first guide member has a guide body. The guide body is disposed along the top plate to direct air existing over the injection device to the ventilation part.

Work vehicle

An engine compartment accommodates an engine. A cooling device is configured to cool the engine. A cooling compartment accommodates the cooling device. A division wall is disposed between the engine compartment and the cooling compartment. A ventilation portion includes a hole for permitting air to pass therethrough and is provided on a top surface of the engine compartment. A water receiving member is disposed under the ventilation portion within the engine compartment. A water catchment member is disposed in the cooling compartment and catches water received by the water receiving member. A drainage pathway is connected to the water catchment member and leads the water to a predetermined drainage position.

Drainage structure for a work vehicle

A vehicle body cover of a work vehicle is provided with an outside ventilation cover part and an inside ventilation cover part. The outside ventilation cover part has outside ventilation holes that communicate with an external space. The outside ventilation cover part is disposed in an inclined manner with respect to the vertical direction. The inside ventilation cover part is disposed to face the outside ventilation holes on the inside of the outside ventilation cover part. The inside ventilation cover part has a rain gutter part and a ventilation part. The rain gutter part is configured to receive water entering from the outside ventilation holes. The ventilation part has inside ventilation holes that communicate with a space on the inside of the inside ventilation cover part. The ventilation part is disposed above the rain gutter part.

Vehicle body cover and work vehicle

An engine room is disposed rearward of a cab. An engine is disposed inside the engine room. A first exhaust processing device and a second exhaust processing device are disposed over the engine. An air cleaner is disposed in the engine room in front of the first exhaust processing device and the second exhaust processing device. A tank is disposed between the cab and the air cleaner in the vehicle front-back direction. A rear surface of the tank has a lower rear surface part and an upper rear surface part. The upper rear surface part is disposed above the lower rear surface part and is positioned forward of the lower rear surface part. At least a portion of the air cleaner is disposed facing the upper rear surface part.

Wheel loader

A wheel loader includes a cooling chamber, which houses a cooling fan and a cooling device, and a grill through which a cooling air obtained by the cooling fan passes. The grill includes a frame, which is provided by framing four side components, and a ventilation portion, which is made of a punching metal and which also has a plurality of air intakes. The ventilation portion is provided inside the frame, and it is a stepwise member with vertically arranged steps that are created by plastic working the punching metal. The ventilation portion has a three-dimensionally curved surface that bulges bidirectionally toward an outside of the cooling chamber.

Main body of a construction machine

A cooling system that is capable of cooling a working vehicle, such as a wheeled loader, at a good efficiency and at a reduced level of noise. Plural radiators are arranged in a V-shaped form within a plane behind an engine mounted in the rear of the engine compartment of the vehicle. The radiators are spread a part rearwardly to form a space between them. A cooling fan is mounted in this space. The side surfaces of the radiators are provided with intake ports that are covered by openable side covers. The top of each intake ports is covered by a hood whose top surface can be tilted rearwardly and downwardly.

Cooling system for working vehicle

Growing community of inventors

Komatsu, Japan

Yutaka Tanaka