Work vehicle

Abstract

This work vehicle is provided with: a bonnet 6 that covers an engine room provided in the front portion of a traveling machine 3; an engine 5 that serves as a drive source; a radiator 235 that supplies cooling water to the engine 5; an air cleaner 221 that takes in outside air and supplies said air to the engine 221; and a condenser 275 that cools a refrigerant. The air cleaner 221 and condenser 275 are disposed in front of the radiator 235 so as to be one above the other, and the condenser 275 is configured to be withdrawable in a left-right direction.

Description

technical field [0001] The invention of the present application relates to a working vehicle such as a tractor for agricultural work or a wheel loader for civil engineering work. Background technique [0002] Today, with the application of high-level exhaust gas regulations related to diesel engines (hereinafter referred to as engines), it is required to install exhaust gas purification devices that purify air pollutants in exhaust gas on agricultural work vehicles equipped with engines, construction civil machinery. As an exhaust gas purifying device, a diesel particulate filter (hereinafter referred to as DPF) which traps particulate matter and the like in exhaust gas is known (for example, refer to Patent Document 1 and the like). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2008-31955 [0004] In Patent Document 1, the structure of the following tractor is disclosed: an engine is mounted on the front part of the traveling body, a DPF long in front and rear...

AI Technical Summary

Problems solved by technology

[0005] When the DPF is assembled close to the engine, it is easy to maintain the temperature of the exhaust gas in the DPF at a high temperature by reducing the temperature drop of the exhaust gas supplied from the engine to the DPF. However, it is not easy to support the DPF The structure is simplified, so there are problems that the assembly workability and vibration resistance of the DPF cannot be improved.

In addition, since the engine is enlarged due to the installation of the DPF, the vibration of the engine with different vibration series has a large influence, and it is necessary to connect both the traveling body and the engine (such as exhaust pipes, etc.) There is a possibility of damage and failure

[0006] In addition, there is also a problem that due to the increase in the size of the engine, the engine mounting space of the work vehicle is insufficient, not only the design change on the work vehicle side is forced, but also the maintainability is deteriorated due to the mounting state of the engine.

In addition, the flow of cooling air in the engine room becomes poor due to the enlarging of the engine, not only the cooling effect is reduced, but also the heat retention in the engine room may cause failure of not only the electronic components but also the engine due to heating.

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