Aspects of the disclosure are directed to a crank. In accordance with one aspect, the crank includes a first web, wherein the first web includes a first plurality of protrusions, and wherein one of the first plurality of protrusions includes a first midline radial axis and is non-symmetric with respect to the first midline radial axis; and a second web coupled to the first web, wherein the second web includes a second plurality of protrusions, and wherein one of the second plurality of protrusions includes a second midline radial axis and is non-symmetric with respect to the second midline radial axis.

A housing for a motor or compressor has an elongate crankcase with two end surfaces. At least one cylinder chamber is provided in which a piston is caused to perform a movement by rotation of the crankshaft. The internal diameter of the crankcase narrows monotonously from the first end surface to the second end surface. A crankcase shaped in this way can be manufactured particularly easily by virtue of the casting being performed around a shaping mandrel. A shaping mandrel of this type must likewise narrow monotonously in order that, after the casting has been performed around it, the shaping mandrel can be pulled out of the housing at a first end. By way of the shaping of the crankcase, it is possible for the housing to be of unipartite and at the same time very compact construction.

A power cell unit may include a piston assembly having a piston crown and a piston skirt. The piston crown may include a ring belt portion extending circumferentially about a combustion bowl and at least one boss portion extending downward from the combustion bowl. The power cell unit may also include a connecting rod having an elongated portion and a funnel portion, and at least one piston pin configured to connect the connecting rod with the piston assembly. A bottom surface of the at least one boss portion may engage with a corresponding surface of the funnel portion such that a gas load is substantially transferred directly from the piston crown to the connecting rod during downward motion of the piston assembly, and such that only inertial loading from the piston crown and/or piston skirt is transferred to the piston pin during upward motion of the piston assembly.

A method for machining a surface of a metal component, in particular a connecting rod or a cam for a motor vehicle, including the following steps: providing a metal component which has a surface to be machined; premachining the surface to be machined; structuring the premachined surface by means of a laser beam in such a way that elevations but no depressions are formed as laser structures on the premachined surface with respect to the level thereof.

A connecting rod for an internal combustion engine may include a big end passage for receiving a pin journal of a crankshaft, a small end passage for receiving a piston pin, and a beam extending between the big and small end passages. The small end passage may extend along a passage axis and be delimited by opposed edges. The small end passage may include an inner passage surface with a cylindrical surface portion having a first diameter. The small end passage may extend along the passage axis between the opposed edges. The inner passage surface may comprise profiled regions adjacent to the opposed edges and extending at least over a part of a circumference of the opposed edges. The profiled regions may begin from the cylindrical surface portion and increase into a maximum second diameter at the opposed edges. Further, a plurality of dimples may be positioned along the cylindrical surface portion of the inner passage surface.

A link rod for a motor vehicle, with a connecting rod (4) designed with an open profile that extends in an axial direction (x), which comprises a back (8) and two opposed sidepieces (9, 10) which are connected to one another by the back (8), extending away from the back so as to enclose an angle (a) of less than 180° between them. Two joints (2, 3) are connected to one another by the connecting rod (4), each joint comprises a joint housing (5) and an inner joint component (6) that is fitted and able to move in the housing and extends outwardly therefrom. The connecting rod (4) is embedded, at its respective axial ends, in one of the joint housings (5), and the sidepieces (9, 10) enclose an angle (α) of at least 90° between them.

Composite tubes comprising a compression sleeve coupled to an inner surface of a composite tube, a carbon extrusion member disposed within the composite tube, and an end fitting comprising a locking feature, wherein the end fitting is coupled to an inner surface of the compression sleeve and the locking feature is configured to engage the carbon extrusion member are disclosed. Methods comprising coupling a compression sleeve to an inner surface of a distal end of a composite tube, placing a carbon extrusion member inside the compression sleeve and the composite tube, and disposing an end fitting on the distal end of the composite tube, wherein the end fitting comprises a locking feature configured to interact with the carbon extrusion member are also disclosed.

A fiber composite member includes an elongate main member and a fastening portion disposed at an end of the elongate main member, the fastening portion has a fastening opening for fastening the fiber composite member to a neighboring part. A reinforcement fiber bundle, which forms a fiber reinforcement of both the elongate main member and the fastening portion, has a first reinforcement fiber and a second reinforcement fiber which run substantially mutually parallel in a region of the elongate main member. A respective part of the first reinforcement fiber and the second reinforcement fiber in a transition region between the elongate main member and the fastening portion depart from a bundle profile in the region of the elongate main member and the respective parts of the first and second reinforcement fibers intersect with one another in the transition region.

An axle link for a motor vehicle includes a body-side connecting element and a wheel-side connecting element. The connecting elements are connected to one another by a rod element, comprised of a metal rod and a reinforcement casing. The metal rod is made of a ductile material and is anchored in the reinforcement casing at the connecting elements. The reinforcement casing is made of a brittle material and has a predetermined breaking point at a longitudinal position between the connecting elements.

An axle link for a motor vehicle includes a body-side connecting element and a wheel-side connecting element. The connecting elements are connected to one another by a rod element, comprised of a metal rod and a reinforcement casing. The metal rod is made of a ductile material and is anchored in the reinforcement casing at the connecting elements. The reinforcement casing is made of a brittle material and has a predetermined breaking point at a longitudinal position between the connecting elements.