The provided is a bearing device for a crankshaft of an internal combustion engine including: a crankshaft having a plurality of journal portions; main bearings for supporting the crankshaft; and a bearing housing, wherein a range in which the oil groove of the upper-side halved bearing of the second main bearing is formed in the circumferential direction includes at least a range of a circumferential angle of 20? within the ?45? region, a circumferential end portion of the oil groove on a rotationally forward side communicates with the crush relief at a minimum, and is open to a circumferential end face at a maximum, and a circumferential end portion of the oil groove on the rotationally backward side of the journal portion is positioned on a circumferential center portion side of the upper-side halved bearing from a circumferential end face of the upper-side halved bearing.

A drive system for an automatic step including an actuator for moving an automatic step, a crank arm pivotally coupled to the actuator and pivotable about a central shaft, and a first link pivotally coupled to the crank arm, the first link having first and second ends. The linkage comprises one or more force mitigation mechanisms capable of reducing forces eccentric to the actuator. A first force mitigation mechanism engages when the step is deployed or nearly deployed by aligning the central shaft with the first and second ends of the first link along a first axis to generally place eccentric forces originating from the step against the central shaft of the crank arm instead of directly engaging the actuator.

To provide an analysis apparatus capable of improving the accuracy of analysis results. An analysis apparatus makes predictions about the quality of conditions of a production facility or the quality of conditions of a production object in a process of producing a crankshaft as the production object by a grinder as the production facility. The analysis apparatus includes the plurality of predictors making predictions about the quality by using different analysis methods based on data concerning the production facility, a selection unit selecting the plurality of predictors in use from the plurality of predictors, and an overall predictor calculating a comprehensive prediction result about the quality based on the plurality of prediction results obtained by the plurality of predictors in use selected by the selection unit.

A rotation drive device includes a crankshaft which has two ends dynamically connected to a drive source and a driven device, respectively. The drive source drives the crankshaft to rotate the driven device. The crankshaft structurally changes to make the two ends of the shaft portion connected to the rotation drive portion and the driven portion, respectively, at different central angles, which divides the space into two subspaces which are located two sides of the shaft portion, so that the wire can be arranged in the subspaces at both sides of the shaft portion, thus enhancing the flexibility of wire distribution while improving rotation range of motion.

The present disclosure relates to a four-stroke reciprocating piston engine in a V configuration having 16 cylinders, having a counter-clockwise direction of rotation, having an ignition timing control which fires the cylinders A1 to A8 and B1 to B8 in one of the following firing sequences, wherein the direction of rotation and the cylinder numbering are defined in accordance with DIN ISO 1204: a) A1-B2-A5-B4-A7-B8-A3-A8-B5-A6-B7-A2-B3-A4-B1-B6 b) A1-B2-A5-A2-B3-A4-B1-A8-B5-A6-B7-B4-A7-B8-A3-B6 c) A1-B4-A3-B2-A7-B6-A5-B8-B3-A8-B7-A4-B5-A2-B1-A6 d) A1-B4-A3-B2-B5-A2-B1-A6-B3-A8-B7-A4-A7-B6-A5-B8 e) A1-B2-A6-B4-A8-A4-B1-A7-B6-A5-B8-A2-B3-B7-A3-B5 f) A1-B2-A6-B4-A8-B7-A3-A7-B6-A5-B8-A2-B3-A4-B1-B5 g) A1-B2-A6-A2-B3-A4-B1-A7-B6-A5-B8-B4-A8-B7-A3-B5 h) A1-B4-A3-B2-A8-B5-A6-B7-B3-A7-B8-A4-B6-A2-B1-A5 i) A1-B4-B8-A4-B6-A2-B1-A5-B3-A7-A3-B2-A8-B5-A6-B7 j) A1-B4-A3-B2-B6-A2-B1-A5-B3-A7-B8-A4-A8-B5-A6-B7 k) A1-B2-A6-B5-A8-A5-B1-A7-B6-A4-B8-A2-B3-B7-A3-B4 l) A1-B2-A6-B5-A8-B7-A3-A7-B6-A4-B8-A2-B3-A5-B1-B4 m) A1-B2-A6-A2-B3-A5-B1-A7-B6-A4-B8-B5-A8-B7-A3-B4 n) A1-B5-A3-B2-A8-B4-A6-B7-B3-A7-B8-A5-B6-A2-B

The present disclosure relates to a four-stroke reciprocating piston engine in a V configuration having 16 cylinders, having a counter-clockwise direction of rotation, having an ignition timing control which fires the cylinders A1 to A8 and B1 to B8 in one of the following firing sequences, wherein the direction of rotation and the cylinder numbering are defined in accordance with DIN ISO 1204: a) A1-B2-A5-B4-A7-B8-A3-A8-B5-A6-B7-A2-B3-A4-B1-B6 b) A1-B2-A5-A2-B3-A4-B1-A8-B5-A6-B7-B4-A7-B8-A3-B6 c) A1-B4-A3-B2-A7-B6-A5-B8-B3-A8-B7-A4-B5-A2-B1-A6 d) A1-B4-A3-B2-B5-A2-B1-A6-B3-A8-B7-A4-A7-B6-A5-B8 e) A1-B2-A6-B4-A8-A4-B1-A7-B6-A5-B8-A2-B3-B7-A3-B5 f) A1-B2-A6-B4-A8-B7-A3-A7-B6-A5-B8-A2-B3-A4-B1-B5 g) A1-B2-A6-A2-B3-A4-B1-A7-B6-A5-B8-B4-A8-B7-A3-B5 h) A1-B4-A3-B2-A8-B5-A6-B7-B3-A7-B8-A4-B6-A2-B1-A5 i) A1-B4-B8-A4-B6-A2-B1-A5-B3-A7-A3-B2-A8-B5-A6-B7 j) A1-B4-A3-B2-B6-A2-B1-A5-B3-A7-B8-A4-A8-B5-A6-B7 k) A1-B2-A6-B5-A8-A5-B1-A7-B6-A4-B8-A2-B3-B7-A3-B4 l) A1-B2-A6-B5-A8-B7-A3-A7-B6-A4-B8-A2-B3-A5-B1-B4 m) A1-B2-A6-A2-B3-A5-B1-A7-B6-A4-B8-B5-A8-B7-A3-B4 n) A1-B5-A3-B2-A8-B4-A6-B7-B3-A7-B8-A5-B6-A2-B

In a crankshaft 200, one hole 213L formed in a crankpin 213 has a bottom surface having a larger area and a depth from a surface of the crankpin less than those of another hole 213M. In forming the hole 213L and the hole 213M, a preformed product 200 of the crankshaft having a shape smaller than that of a cavity is disposed in a die set and punches are simultaneously inserted into the crankpin 213. By this operation, the hole 213L and the hole 213M are simultaneously formed in each crankpin 213 of the preformed product 200.

A transmission unit of a motor vehicle, with a transmission having a transmission shaft and with an electric motor that is coupled thereto in an axial direction and that has a stator and that has a rotor arranged on a motor shaft and that is bearingless on the A-side. The electric motor includes an end plate on the B-side, and the stator is located at least partly inside a housing of the transmission.

An engine unit for a vehicle includes an engine body, an oil tank, and a power transmission shaft. The engine body includes a cylinder unit and a crankcase. The oil tank is disposed horizontally or substantially horizontally with respect to the engine body. The power transmission shaft includes a crankshaft supported by the crankcase. The power transmission shaft at least partially overlaps with the oil tank in a side view of the engine unit. The power transmission shaft extends from the engine body to a position beyond the oil tank in an axial direction of the crankshaft.

An engine unit for a vehicle includes an engine body, an oil tank, and a power transmission shaft. The engine body includes a cylinder unit and a crankcase. The oil tank is disposed horizontally or substantially horizontally with respect to the engine body. The power transmission shaft includes a crankshaft supported by the crankcase. The power transmission shaft at least partially overlaps with the oil tank in a side view of the engine unit. The power transmission shaft extends from the engine body to a position beyond the oil tank in an axial direction of the crankshaft.