A construction machine includes an upper frame, a machine room structure that is disposed on the upper frame and defines a machine room, a hood that has a box shape, has a lower surface, and is connected to the machine room structure so as to be disposed above the machine room, the lower surface including a hood opening communicating with the machine room, and at least one reinforcement plate that is interposed between the machine room structure and the hood to reinforce connection between the machine room structure and the hood. An outer end portion of the reinforcement plate extends further outward in a left-right direction than the beam member of the machine room structure.

A debris accumulation control system is provided for usage within a work vehicle including an operator station and a work vehicle compartment. In embodiments, the work vehicle debris accumulation control system includes a display device located in the operator station of the work vehicle, a three dimensional (3D) imaging device having a field of view (FOV) encompassing a debris-gathering region of the work vehicle compartment, and a controller operably coupled to the display device and to the 3D imaging device. The controller is configured to: (i) utilize 3D imaging data provided by the 3D imaging device to estimate a debris accumulation risk level within the work vehicle compartment; and (ii) generate a first visual alert on the display device when the debris accumulation risk level surpasses a first predetermined threshold.

A cooling system includes a first cooler, a second cooler, a fan positioned to drive air through the first cooler and the second cooler, and a baffle system. The baffle system includes a baffle and an actuator. The baffle is positioned to facilitate selectively restricting airflow through at least a portion of the first cooler. The actuator is positioned to facilitate reconfiguring the baffle between (i) a first orientation where the baffle does not restrict the airflow through the portion of the first cooler and (ii) a second orientation where the baffle restricts the airflow through the portion of the first cooler, thereby diverting additional airflow through the second cooler.

A machine body comprises a sieving frame having a bottom plate. The machine body comprises an engine. The machine body comprises an exhaust gas cleaning apparatus that executes reduction treatment on a predetermined oxide in an exhaust gas of the engine by injecting a liquid reducing agent. The machine body comprises a reducing agent tank that stores a liquid reducing agent. The machine body comprises a reducing agent pump that feeds the liquid reducing agent stored in the reducing agent tank to the exhaust gas cleaning apparatus. The machine body comprises a cooling fan. The machine body is disposed on the bottom plate of the slowing frame and comprises an opening section that takes in outside air that cools the reducing agent pump by driving the cooling fan. The machine body comprises a duct section that leads the outside air taken from the opening section to the cooling fan.

A hydraulic excavator as a work machine is equipped with an engine room, and an electrical component mounting board located in the engine room, on which at least a first and second electrical components are mounted. The first electrical component is mounted on either a front or back side of the electrical component mounting board. The second electrical component is mounted on the other of the front or back side of the electrical component mounting board.

An excavator including a lower traveling body; an upper turning body turnably mounted to the lower traveling body; a hydraulic actuator configured to drive a driven part including the lower traveling body and the upper turning body; a hydraulic pump configured to supply hydraulic oil to the hydraulic actuator; a motor configured to drive the hydraulic pump; and a power storage device configured to supply power to the motor. The power storage device is mounted at a right front portion of the upper turning body. The hydraulic pump and the motor are mounted at a rear portion of the upper turning body.

An excavator includes a lower traveling body; an upper turning body turnably mounted to the lower traveling body; an actuator configured to drive a driven part including the lower traveling body and the upper turning body; and a power storage device mounted in the upper turning body and configured to serve as an energy source for driving the actuator. The power storage device includes a plurality of power storage modules stacked in a vertical direction, each of the plurality of power storage modules including a power storage part and a housing configured to house the power storage part. The housings of power storage modules among the plurality of power storage modules that are adjacent to each other in the vertical direction, are coupled to each other.

A compact utility loader compact utility loader comprising a frame, and a pair of loader arms supported by the frame. The frame includes a right side, a left side, and a bottom side extending between the right side and the left side. The compact utility loader additionally includes an engine mount secured to the bottom side of the frame and spaced apart from each of the left side and the right side of the frame. The compact utility loader further comprises an engine supported on the engine mount.

Achieved are reduction of noise which is caused by air intake sound of a pre-cleaner, improvement of rear viewability and rear visibility of an operator, and extension of a maintenance interval of the pre-cleaner. A wheel loader (1) includes: an engine (18); a hood (23) that covers, in an openable and closable manner, a space in which the engine (18) is contained and that has an air intake opening (23a) through which air is taken into the space; an air cleaner (33) that is contained in the space and that is connected to the engine (18) via a first air intake pipe (34); and a pre-cleaner (31) that is contained in the space and that is connected to the air cleaner (33) via a second air intake pipe (32).

A working machine comprising a ground engaging structure and an undercarriage connected to the ground engaging structure. A superstructure is rotatably mounted to the undercarriage so as to be rotatable relative to the undercarriage about a first generally upright axis, an operator's cab is rotatably mounted on the superstructure so as to be rotatable relative to the superstructure about a second generally upright axis, and a working arm is rotatably mounted to the superstructure so as to be moveable up and down about a generally horizontal axis. A drive arrangement is provided for driving the ground engaging structure to propel the working machine. The drive arrangement includes an engine and transmission that are housed within the undercarriage, and a majority of the engine is positioned below a level coincident with a lower extent of the superstructure.