摘要:
A motor-vehicle, particularly an electrically-powered car of small size, has a supporting structure in the form of a reticular framework (2) of light alloy. The framework (2) includes two side structures (3) each formed by extruded profile elements (4) which are welded to joining knot elements (5) which have been obtained by casting. The side structures (3) are connected to each other by cross members (6, 7, 8, 9) which also are formed by extruded profile elements having their ends connected to the side structures (3) by mechanical coupling means, such as screws.
摘要:
A turbocharger comprises a variable nozzle device and an exhaust housing being mechanically and/or thermally decoupled from the variable nozzle device. Additional optional advantageous features are provided, including various axial and radial clearances and various sealing elements.
摘要:
A turbocharger housing comprises a main body (1) for bearing a shaft (2) for carrying a turbine wheel and a compressor wheel (3), and a seal portion (4) to seal a clearance between the shaft (2) and the turbocharger housing, wherein said seal portion (4) is formed by an insert (5) being fitted to the main body (1), wherein said insert (5) comprises a passage (6, 7) for supplying a fluid to said seal portion (4).
摘要:
A calibration flow position of a variable nozzle (6) of a turbocharger is set by a method for calibrating the turbocharger, which comprises a turbine (2) and a compressor (1). In this method, the turbocharger is driven by a predetermined fluid supply. Further, the flow position of the variable nozzle (6) is changed while the rotational speed (N) of the turbocharger or an outlet pressure (P2C) of the compressor (1) is monitored. The calibration flow position is fixed based on the monitored quantities.
摘要:
Early detection and avoidance of turbocharger failure are provided by monitoring vibration of the turbocharger rotor using a vibration sensor and providing the output signal of the sensor to a controller programmed to periodically compare the magnitude of the vibration to a predetermined maximum limit. Upon the magnitude of the vibration exceeding the maximum limit, thus indicating a potential abnormal condition, the controller issues a command to a fuel controller for the engine to cause the fuel controller to place the engine in a predetermined safe operating mode selected to reduce the likelihood of turbocharger and engine damage from the abnormal condition.
摘要:
A diffuser plate for a centrifugal compressor includes an inner edge disposed at an inner diameter about a central axis; an outer edge disposed at an outer diameter, the outer edge displaced an axial distance from the inner edge; a deformable section that includes a substantially S-shaped cross-section, the deformable section disposed between the inner edge and the outer edge; and a spring constant for forced axial displacement of the outer edge with respect to the inner edge, the spring constant characterized, at least in part, by the deformable section. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.
摘要:
A turbocharger comprises a variable nozzle device and an exhaust housing being mechanically and/or thermally decoupled from the variable nozzle device. Additional optional advantageous features are provided, including various axial and radial clearances and various sealing elements.
摘要:
A turbocharger housing includes a main body for bearing a shaft for carrying a turbine wheel and a compressor wheel, and a seal portion to seal a clearance between the shaft and the turbocharger housing, where the seal portion is formed by an insert being fitted to the main body, where the insert includes a passage for supplying a fluid to the seal portion.
摘要:
A nozzle device for a turbine of a turbocharger according to the present invention comprises variable annular nozzle (2) defined between an inboard wall (3) and an outboard wall (4), wherein said outboard wall (4) is axially movable for completely closing said variable annular nozzle (2).
摘要:
A calibration flow position of a variable nozzle (6) of a turbocharger is set by a method for calibrating the turbocharger, which comprises a turbine (2) and a compressor (1). In this method, the turbocharger is driven by a predetermined fluid supply. Further, the flow position of the variable nozzle (6) is changed while the rotational speed (N) of the turbocharger or an outlet pressure (P2C) of the compressor (1) is monitored. The calibration flow position is fixed based on the monitored quantities.