| 摘要 |
The invention aims at reducing the beating noise generated from motors of equipments placed in a galley unit of an aircraft. A galley unit 1 of an aircraft includes a cabinet 10 formed of honeycomb panels and the like. The cabinet 10 has a counter 50 for cooking, and a compartment 20 formed under the counter 50 for storing service carts 30. A plurality of ovens 100 for heating warm dishes are provided above the counter 50. Each oven 100 has a fan motor for making the inner heat even. If all the fan motors of the ovens are driven at the same rotation frequency, a beating noise will be generated from the motor and amplified through the compartment 20. Therefore, the rotation frequencies of the fan motors are slightly varied.
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