A link arm member of the present invention is used in a vehicle for connecting a suspension and a stabilizer, and includes: a support bar that is sealed by plastically deforming a hollow metal pipe at both ends thereof; and a housing part made of resin that is arranged at each end of the support bar and has a receiving hole for receiving a ball part of a ball stud to which the suspension or the stabilizer is fixed, wherein the housing part is formed by insert molding with the support bar.

A method for fracturing a metal component in which a through hole is included, and groove portions that continue from a first open end to a second open end of the through hole are formed at facing positions in an inner circumferential surface of the through hole, includes specifying positions on which a stress is to concentrate when fracturing of the metal component is started, in the groove portions of the metal component; forming stress concentration portions at positions in bottom portions of the groove portions corresponding to the specified positions such that the specified positions in the groove portions are caused to serve as breaking start points; and causing cracking earlier at the stress concentration portions in the groove portions than at each portion of the groove portions when the fracturing is started and causing cracking to develop from each portion of the groove portions.

A linkage extends between an actuator and a valve in a turbocharger. The linkage comprises two spaced member bodies having central portions with opposing curved shapes that extend between ends translatable along and rotatable about spaced pivots. Translation of one member toward the other member compresses the central portions, increasing overall stiffness of the linkage, and translation of one member away from the other member creates a gap between the central portions, allowing independent translation of the ends along the spaced pivots to compensate for misalignment between the actuator and the valve caused by heat and vibration. Another linkage extending between an actuator and a valve in a turbocharger includes two planar spaced member bodies extending between ends translatable along and rotatable about spaced pivots. The two member bodies have different thicknesses.

A linkage extends between an actuator and a valve in a turbocharger. The linkage comprises two spaced member bodies having central portions with opposing curved shapes that extend between ends translatable along and rotatable about spaced pivots. Translation of one member toward the other member compresses the central portions, increasing overall stiffness of the linkage, and translation of one member away from the other member creates a gap between the central portions, allowing independent translation of the ends along the spaced pivots to compensate for misalignment between the actuator and the valve caused by heat and vibration. Another linkage extending between an actuator and a valve in a turbocharger includes two planar spaced member bodies extending between ends translatable along and rotatable about spaced pivots. The two member bodies have different thicknesses.

The invention provides a design method for a connecting rod. The connecting rod includes a first end, a shank and a second end; and the shank is connected between the first end and the second end. The design method includes: determining a weight m.sub.1 of a standard steel connecting rod; determining a weight m.sub.2 of a nodular cast iron connecting rod having the same size with the standard steel connecting rod; and simulating to reinforce the shank with a reinforcement material having a preset weight m, and calculating a size of the reinforced shank; where m.sub.1>m.sub.2, and m<m.sub.1−m.sub.2. The present invention overcomes the technical problem that existing steel connecting rods have larger weights.

The invention provides a design method for a connecting rod. The connecting rod includes a first end, a shank and a second end; and the shank is connected between the first end and the second end. The design method includes: determining a weight m.sub.1 of a standard steel connecting rod; determining a weight m.sub.2 of a nodular cast iron connecting rod having the same size with the standard steel connecting rod; and simulating to reinforce the shank with a reinforcement material having a preset weight m, and calculating a size of the reinforced shank; where m.sub.1>m.sub.2, and m<m.sub.1−m.sub.2. The present invention overcomes the technical problem that existing steel connecting rods have larger weights.

The present invention relates to a cooling device (8) comprising: —a housing (22); —a crank (28) rotationally movable relative to the housing (22); —a piston (16); —a coupling component (34) rotationally mounted on the crank (28), the coupling component (34) having a first edge (54) facing the piston (16) and a second edge (56) opposite the first edge (54); —a deformable element (64) integrated in the coupling component (34) and integrated in the piston (16), the deformable element (64) being configured to translationally move the piston (16) relative to the housing while deforming, when the crank (28) is rotated relative to the housing (22), the deformable element (64) being integrated in the second edge (56) of the coupling component (34).

The present invention relates to a cooling device (8) comprising: —a housing (22); —a crank (28) rotationally movable relative to the housing (22); —a piston (16); —a coupling component (34) rotationally mounted on the crank (28), the coupling component (34) having a first edge (54) facing the piston (16) and a second edge (56) opposite the first edge (54); —a deformable element (64) integrated in the coupling component (34) and integrated in the piston (16), the deformable element (64) being configured to translationally move the piston (16) relative to the housing while deforming, when the crank (28) is rotated relative to the housing (22), the deformable element (64) being integrated in the second edge (56) of the coupling component (34).

The invention provides a design method for a connecting rod. The connecting rod includes a first end, a shank and a second end; and the shank is connected between the first end and the second end. The design method includes: determining a weight m.sub.1 of a standard steel connecting rod; determining a weight m.sub.2 of a nodular cast iron connecting rod having the same size with the standard steel connecting rod; and simulating to reinforce the shank with a reinforcement material having a preset weight m, and calculating a size of the reinforced shank; where m.sub.1>m.sub.2, and m<m.sub.1m.sub.2. The present invention overcomes the technical problem that existing steel connecting rods have larger weights.

The invention provides a design method for a connecting rod. The connecting rod includes a first end, a shank and a second end; and the shank is connected between the first end and the second end. The design method includes: determining a weight m.sub.1 of a standard steel connecting rod; determining a weight m.sub.2 of a nodular cast iron connecting rod having the same size with the standard steel connecting rod; and simulating to reinforce the shank with a reinforcement material having a preset weight m, and calculating a size of the reinforced shank; where m.sub.1>m.sub.2, and m<m.sub.1m.sub.2. The present invention overcomes the technical problem that existing steel connecting rods have larger weights.