| 摘要 |
An exhaust head unit for compact fluorescent lamps comprises an exhaust head block, a double rubber seal arranged in the block and serving for the reception of exhaust tubes, a vacuum valve, a gas valve, and a diaphragm for regulating the gas flow, as well as a vacuum duct and a gas duct. The vacuum valve, the gas valve and the adjoining vacuum and gas ducts are all arranged within a single exhaust head block, the diaphragm of the gas flow simultaneously constituting the seat of the gas valve. |
