| 摘要 |
<p>A mechanism for measuring the running time of an internal combustion engine includes a numerical display of the engine running hours, such that the owner of the engine can better determine the appropriate time for changing the engine lubrication oil. A chronometer (16) is controlled by a switch (34) responding sensitively to engine temperature or vibration, so that the chronometer (16) is actuated only while the engine is working. The mechanism is incorporated into the handle (14) of an oil dipstick (12), which enables the engine owner to check the chronometer (16) at the same time as he/she is checking the engine oil level.</p> |
