A work vehicle includes an engine, an intake passage through which combustion air flows from an ambient air inlet to an engine, an air cleaner for removing dust contained in the combustion air, a throttle valve for adjusting an intake amount of the combustion air by the engine, a blowby gas returning passage for returning blowby gas discharged from the engine to a mid portion of the intake passage, and an inclined passage portion that assumes a progressively downwardly inclined posture to be located at a lower position on downstream side in a flow direction, the inclined passage portion having a water draining portion at its lowermost end.

Side surfaces of an end cam cap and a pair of side surfaces of a recess for cam cap form two cross-sectional area gradually changing gaps therebetween. A gasket is filled between an inner surface of the recess for cam cap and an outer surface of the end cam cap. The inner surface includes the side surfaces of the recess for cam cap and the outer surface includes the side surfaces of the end cam cap.

A sealing-equipped oil pan includes a gasket and an oil pan having a bottom portion and a peripheral wall for storing oil, and a ring-shaped rim portion located at an end of the peripheral wall and provided with the gasket, and is fastened to a target device with the gasket interposed between the rim portion and the target device. The gasket has a projection projecting from a sealing surface configured to come into contact with the target device for sealing. The peripheral wall of the oil pan has a base portion projecting from the rim portion and supporting the projection of the gasket. The base portion supports the projection of the gasket to prevent the gasket from tilting with respect to the rim portion, thereby preventing protrusion of the gasket.

An oil pan assembly for a vehicle is provided which reduces and the movement of the oil pan relative to the engine block, and reduces the mechanical strain on the Room Temperature Vulcanizing (RTV) layer between the oil pan and the engine block. The oil pan assembly includes a brace and an oil pan having a base and sidewalls, and optionally an oil pan cover. The oil pan may include a peripheral flange operatively configured to be coupled to an engine block. The brace may be affixed to the oil pan about the peripheral area of the oil pan.

An oil pan assembly for a vehicle is provided which reduces and the movement of the oil pan relative to the engine block, and reduces the mechanical strain on the Room Temperature Vulcanizing (RTV) layer between the oil pan and the engine block. The oil pan assembly includes a brace and an oil pan having a base and sidewalls, and optionally an oil pan cover. The oil pan may include a peripheral flange operatively configured to be coupled to an engine block. The brace may be affixed to the oil pan about the peripheral area of the oil pan

An object of the present invention is to simplify portions of an oil supply passage which portions are formed at a cylinder block. An oil supply device according to the present invention includes a cylinder block, an oil pan, an oil pump, and an oil filter. Wall portions of the oil pan are coupled to wall portions of the cylinder block. An oil filter is attached to the oil pan. An upstream oil supply passage through which the oil filtrated by the oil filter flows is formed at the oil pan. A downstream oil supply passage including a main gallery extending in a cylinder column direction is formed at the cylinder block. A first communication passage through which the main gallery and the upstream oil supply passage communicate with each other is formed at the wall portion of the cylinder block and the wall portion of the oil pan.

An oil collection system includes a boat that has an engine. A pan is removably coupled to the engine such that the pan may capture oil leaked from the engine. A plurality of clips is provided and each of the clips is coupled to the pan. Each of the clips engages the bottom end of the engine such that the pan is removably retained on the engine. A filter is positioned within the pan such that the filter filters the oil. A gauge is coupled to the pan such that the gauge may display an amount of oil contained within the pan. A drain is coupled to the pan such that the drain may selectively drain the oil from the pan.

An oil sump is mounted on an assembly formed by a crankcase and a flywheel housing of an internal combustion engine. The flywheel housing has a first parting plane to the crankcase and to the oil sump. In mounted state, the joint faces of the flywheel housing, the crankcase, and the oil sump lie on each other. The crankcase has a second parting plane to the oil sump. In mounted state the joint faces of the crankcase and the oil sump lie on each other. At least one guide is provided between the flywheel housing and the oil sump, the guide orienting at least the joint faces of the oil sump and the crankcase relative to each other during connection of the oil sump to the assembly formed by the crankcase and flywheel housing, such that on creation of the abutment connection between the oil sump and the crankcase, these joint faces are oriented substantially planar parallel.

An oil sump is mounted on an assembly formed by a crankcase and a flywheel housing of an internal combustion engine. The flywheel housing has a first parting plane to the crankcase and to the oil sump. In mounted state, the joint faces of the flywheel housing, the crankcase, and the oil sump lie on each other. The crankcase has a second parting plane to the oil sump. In mounted state the joint faces of the crankcase and the oil sump lie on each other. At least one guide is provided between the flywheel housing and the oil sump, the guide orienting at least the joint faces of the oil sump and the crankcase relative to each other during connection of the oil sump to the assembly formed by the crankcase and flywheel housing, such that on creation of the abutment connection between the oil sump and the crankcase, these joint faces are oriented substantially planar parallel.

An oil sump is mounted on an assembly formed by a crankcase and a flywheel housing of an internal combustion engine. The flywheel housing has a first parting plane to the crankcase and to the oil sump. In mounted state, the joint faces of the flywheel housing, the crankcase, and the oil sump lie on each other. The crankcase has a second parting plane to the oil sump. In mounted state the joint faces of the crankcase and the oil sump lie on each other. At least one guide is provided between the flywheel housing and the oil sump, the guide orienting at least the joint faces of the oil sump and the crankcase relative to each other during connection of the oil sump to the assembly formed by the crankcase and flywheel housing, such that on creation of the abutment connection between the oil sump and the crankcase, these joint faces are oriented substantially planar parallel.