| 摘要 |
A hot gas pulse generator 10 (100, fig.3) is disclosed having a closed chamber 12 (112, fig.3) arranged for connection to a source of hot pressurised gas via an inlet valve 11 (111, fig.3) and arranged to supply pulses of hot pressurised gas to a turbocharger 20 being tested via an outlet valve 13 (113, fig.3). By varying the frequency of opening of the outlet valve 13 variations in engine speed can be simulated. The volume of the chamber 12 can be changed by either moving a plug 15 (115, fig.3) in a cylinder 16 (116, fig.3) partially defining the chamber 12 or by using different height plugs 15. In either case the magnitude of the hot gas pulse supplied to the turbocharger 20 is changed when the volume of the chamber 12 is changed thereby simulating different engine throttle opening states. A turbo charger testing apparatus and method of use is also disclosed. |
