| 摘要 |
A process and an apparatus for the recovery of energy, in the form of electricity, from a engine on a test bench. The apparatus includes, in particular, a brake coupled to the engine being tested, and an asynchronous motor/generator or dynamo connected to the distribution network to be supplied, a rotational velocity sensing apparatus provided at the output shaft of the engine, and a torque sensing apparatus. The apparatus also includes a coupler to achieve a selectively variable coupling between the brake and the asynchronous motor/generator or dynamo, while an electronic control and operating mechanism or controller, such as a computer, is provided to receive the signals from the velocity sensing apparatus and the torque sensing apparatus so as to assure the desired control of the velocity and/or of the torque, and to control the placement in operation or out of operation of the brake and/or the coupler. The invention likewise relates to a process for the recovery of energy utilizing such an apparatus. The process comprises the steps of progressively removing the braking torque of the brake and simultaneously increasing the degree of coupling of the dynamo to the output shaft so that the torque, as seen by the engine, remains constant and only the dynamo is coupled to the engine at a predetermined synchronous speed, and operating the dynamo as a generator.
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