| 摘要 |
PURPOSE:To simplify the structure of a fuel jet device and satisfactorily gasify and atomize fuel jetted from a fuel jet valve by providing assist air supplying passages which feed air in an operation chamber under a compression process to an operation chamber under a fuel jet condition as assist air. CONSTITUTION:An assist air supplying passage 62 is connected in one end thereof to an air inlet of a fuel jet valve 21, and connected in the other end thereof to an operation chamber C of a separate rotor housing 1 under a compression process. One more assist air supplying passage 66 is connected to the operation chamber C of the rotor housing 1 under a compression process. The assist air supplying passages 62, 66 have respectively timed valves 63, chambers 64 and check valves 65. The timed valves 63 are controlled to open only when the assist air is supplied by means of an electronic control device 55. The air compressed in the operation chamber C under the compression process is fed to the operation chamber C under a fuel jet condition as the assist air through the supplying passages 62, 66. |
