Abstract: A work vehicle which can provide more accommodation space for articles on a vehicular body frame is provided. A rear cab mount on which a cab of a hydraulic excavator is mounted is mounted on a revolving frame and forms a hollow rear under-mount space. An opening portion is formed at a position corresponding to a side of the rear under-mount space in an exterior cover which laterally covers the revolving frame. A rear door body can open and close the opening portion. The rear door body opens the rear under-mount space to an external space with the opening portion being opened.

Abstract: A work vehicle which can provide more accommodation space for articles on a vehicular body frame is provided. A rear cab mount on which a cab of a hydraulic excavator is mounted is mounted on a revolving frame and forms a hollow rear under-mount space. An opening portion is formed at a position corresponding to a side of the rear under-mount space in an exterior cover which laterally covers the revolving frame. A rear door body can open and close the opening portion. The rear door body opens the rear under-mount space to an external space with the opening portion being opened.

Abstract: An oil storage tank includes a hydraulic oil tank configured to store hydraulic oil, a fuel oil tank configured to store fuel oil, a breather valve disposed on the hydraulic oil tank, and a breather hose connected to the breather valve. The hydraulic oil tank includes a first facing face facing the fuel oil tank. The fuel oil tank includes a second facing face facing the hydraulic oil tank. The second facing face has a fuel-oil-tank adjacent face and a fuel-oil-tank sloped face. The fuel-oil-tank adjacent face extends along the hydraulic oil tank. The fuel-oil-tank sloped face is connected to the fuel-oil-tank adjacent face and slopes relative to the fuel-oil-tank adjacent face so as to be away from the hydraulic oil tank. The breather hose is disposed along the fuel-oil-tank sloped face.

Abstract: An oil storage tank includes a hydraulic oil tank configured to store hydraulic oil, a fuel oil tank configured to store fuel oil, a breather valve disposed on the hydraulic oil tank, and a breather hose connected to the breather valve. The hydraulic oil tank includes a first facing face facing the fuel oil tank. The fuel oil tank includes a second facing face facing the hydraulic oil tank. The second facing face has a fuel-oil-tank adjacent face and a fuel-oil-tank sloped face. The fuel-oil-tank adjacent face extends along the hydraulic oil tank. The fuel-oil-tank sloped face is connected to the fuel-oil-tank adjacent face and slopes relative to the fuel-oil-tank adjacent face so as to be away from the hydraulic oil tank. The breather hose is disposed along the fuel-oil-tank sloped face.

Abstract: An oil storage tank includes a step member, a first tank part and a second tank part. The step member has a placement face. The first tank part is disposed below the step member to support the step member. The second tank part is coupled to the first tank part and has an upper face a lower face, a first side face, a second side face and a recessed section. The upper face is provided above the placement face. The first side face faces the first tank part and is connected to the upper face and the lower face. The second side face is connected to the upper face, the lower face and the first side face. The recessed section is formed by a sloped face provided to a corner portion at which the upper face, the first side face and the second side face intersect.

Abstract: A hydraulic excavator includes an undercarriage having a crawler and a rotating superstructure. The rotating superstructure includes a plate-shaped rotating frame, an engine, a fuel tank a counterweight and a fuel line. The engine is mounted inside the rotating frame. The fuel tank is disposed on one side of the engine. The counterweight is supported on the rotating frame to the rear of the engine, and disposed so that a bottom end portion faces a rear end surface of the rotating frame with a gap interposed therebetween and the gap is open to the atmosphere. The fuel line is connected to the fuel tank and disposed in the gap between the rear end surface of the rotating frame and the bottom end portion of the counterweight.

Abstract: A hydraulic excavator includes an undercarriage having a crawler and a rotating superstructure. The rotating superstructure includes a plate-shaped rotating frame, an engine, a fuel tank a counterweight and a fuel line. The engine is mounted inside the rotating frame. The fuel tank is disposed on one side of the engine. The counterweight is supported on the rotating frame to the rear of the engine, and disposed so that a bottom end portion faces a rear end surface of the rotating frame with a gap interposed therebetween and the gap is open to the atmosphere. The fuel line is connected to the fuel tank and disposed in the gap between the rear end surface of the rotating frame and the bottom end portion of the counterweight.

Abstract: An oil storage tank includes a step member, a first tank part and a second tank part. The step member has a placement face. The first tank part is disposed below the step member to support the step member. The second tank part is coupled to the first tank part and has an user face a lower face, a first side face, a second side face and a recessed section. The upper face is provided above the placement face. The first side face faces the first tank part and is connected to the upper face and the lower face. The second side face is connected to the upper face, the lower face and the first side face. The recessed section is firmed by a sloped face provided to a corner portion at which the upper face, the first side face and the second side face intersect.

Abstract: A waste heat recovery apparatus is disclosed which recovers the waste heat of high temperature exhaust gas discharged from a furnace. The apparatus includes a radiation body made of ceramic material, which is formed with a heat radiation surface arranged adjacent to an exhaust gas outlet of the furnace, and directed toward the inside of the furnace. The radiation body has a plurality of regular channels allowing passage of the exhaust gas therethrough. Exhaust gas passes through the channels and heats the radiation body, and a substantial amount of the holding heat of the exhaust gas is radiated from the radiation surface toward the inside of the furnace, allowing an efficient waste heat recovery.